Methods and systems for coating a cell growth surface

Information

  • Patent Grant
  • 11999929
  • Patent Number
    11,999,929
  • Date Filed
    Friday, April 10, 2020
    4 years ago
  • Date Issued
    Tuesday, June 4, 2024
    5 months ago
Abstract
Embodiments described herein generally provide for the expansion of cells in a cell expansion system using an active promotion of a coating agent(s) to a cell growth surface. A coating agent may be applied to a surface, such as the cell growth surface of a hollow fiber, by controlling the movement of a fluid in which a coating agent is suspended. Using ultrafiltration, the fluid may be pushed through the pores of a hollow fiber from a first side, e.g., an intracapillary (IC) side, of the hollow fiber to a second side, e.g., an extracapillary (EC) side, while the coating agent is actively promoted to the surface of the hollow fiber. In so doing, the coating agent may be hydrostatically deposited onto a wall, e.g., inner wall, of the hollow fiber.
Description
BACKGROUND

Cell Expansion Systems (CESs) may be used to expand and differentiate cells. Cell expansion systems may be used to expand, e.g., grow, a variety of adherent and suspension cells. For example, cell expansion systems may be used to expand mesenchymal stem cells (MSCs) and other types of cells, such as bone marrow cells. Stem cells which are expanded from donor cells may be used to repair or replace damaged or defective tissues and have broad clinical applications for a wide range of diseases. Cells, of both adherent and non-adherent type, may be grown in a bioreactor in a cell expansion system.


SUMMARY

Embodiments of the present disclosure generally relate to a cell expansion system for expanding cells. Such expansion may occur through the use of a bioreactor or cell growth chamber comprising a hollow fiber membrane. In embodiments, a hollow fiber membrane comprises a plurality of hollow fibers. Such hollow fiber membrane may include an extracapillary (EC) space and an intracapillary (IC) space. A cell expansion system may expand a variety of cell types, such as mesenchymal stem cells, cancer cells, T-cells, fibroblasts, and myoblasts. In expanding cells, a compound or coating agent may be applied to a cell growth surface. For example, an adherence-promoting compound may be applied to a cell growth surface to promote contact, e.g., adherence, and subsequent expansion of cells, such as a cell line including human mesenchymal stem cells (hMSCs). In embodiments, for cells to adhere to the surface of the hollow fibers, the surface may be modified in some way, such as by coating at least the cell growth surface with a protein, for example. In embodiments, a coating agent may be applied to the inner surface or inner aspect of bioreactor fibers. For example, a coating agent may be applied to the intracapillary (IC) surface of a hollow fiber(s). In another embodiment, a coating agent may be applied to the extracapillary (EC) surface of a hollow fiber(s). As an example of a coating agent(s), cryoprecipitate (CPPT), fibronectin (FN), human fibronectin (hFN), and/or combinations of such coating agents may be used. In other embodiments, a plurality of coating agents, or a combination of coating agent(s), may be used.


Embodiments provide for fluid movement in a cell growth chamber or bioreactor to be controlled to actively promote a coating agent(s) to a cell growth surface, e.g., to a surface of a hollow fiber(s). For example, such fluid movement may be controlled so as to move fluid from one side, e.g., IC side, of a hollow fiber to the other side, e.g., EC side, of the hollow fiber. In an embodiment, ultrafiltration may be used to move fluid in a bioreactor. For example, positive ultrafiltration may be used to move fluid from the IC side of a bioreactor to the EC side of the bioreactor. In another embodiment, negative ultrafiltration may be used to move fluid from the EC side of a bioreactor to the IC side of the bioreactor. In embodiments, other types of ultrafiltration or directions of fluid movement may be used. The direction of fluid movement may depend on the surface upon which cells are being expanded.


By controlling fluid movement, a coating solution, e.g., a fluid(s) and a coating agent(s), may be actively pushed to the IC (or EC) loop, and the fluid(s) may be pushed through the pores, for example, of a hollow fiber(s), leaving a residual layer of adherence-promoting protein(s), for example, on the IC (or EC) side of the hollow fiber(s) and therefore facilitating the contact, e.g., attachment, of cells, e.g., adherent cells. Such fluid movement, e.g., ultrafiltration, may decrease the time required for a chemical reaction between a coating agent and the growth surface of the bioreactor to occur to coat the fiber(s). Such fluid movement may be controlled through the adjusting of one or more valve(s), pump(s), or other type of fluid flow control device(s).


Embodiments of the present disclosure provide for implementing such coating procedure(s) through the use of one or more protocols or tasks for use with a cell expansion system. Such protocols or tasks may include pre-programmed protocols or tasks for use with an automated CES, for example. In embodiments, a pre-programmed, default, or otherwise previously saved task may be selected. A task may comprise one or more steps. In other embodiments, such protocols or tasks may include custom or user-defined protocols or tasks for use with an automated CES, for example. Through a user interface (UI) and graphical user interface (GUI) elements, a custom or user-defined protocol or task may be created. In embodiments, a combination of pre-programmed, default, custom, and/or user-defined tasks, for example, may be used.


This Summary is included to provide a selection of concepts in a simplified form, in which such concepts are further described below in the Detailed Description. This Summary is not intended to be used in any way to limit the claimed subject matter's scope. Features, including equivalents and variations thereof, may be included in addition to those provided herein.





BRIEF DESCRIPTION OF THE DRAWINGS

Embodiments of the present disclosure may be described by referencing the accompanying figures. In the figures, like numerals refer to like items.



FIG. 1A depicts an embodiment of a cell expansion system (CES).



FIG. 1B illustrates a front elevation view of an embodiment of a bioreactor showing circulation paths through the bioreactor.



FIG. 1C depicts a rocking device for moving a cell growth chamber rotationally or laterally during operation of a cell expansion system, according to embodiments of the present disclosure.



FIG. 2 illustrates a perspective view of a cell expansion system with a pre-mounted fluid conveyance device, in accordance with embodiments of the present disclosure.



FIG. 3 depicts a perspective view of a housing of a cell expansion system, in accordance with embodiments of the present disclosure.



FIG. 4 illustrates a perspective view of a pre-mounted fluid conveyance device, in accordance with embodiments of the present disclosure



FIG. 5 depicts a schematic of a cell expansion system, in accordance with an embodiment of the present disclosure.



FIG. 6 illustrates a schematic of a cell expansion system, in accordance with another embodiment of the present disclosure.



FIG. 7 depicts a flow diagram illustrating the operational characteristics of a process for applying an agent to a cell growth surface in accordance with embodiments of the present disclosure.



FIG. 8A illustrates a flow diagram depicting the operational characteristics of a process for applying a reagent to a cell growth surface in accordance with embodiments of the present disclosure.



FIG. 8B depicts a schematic of applying an agent to a cell growth surface of a hollow fiber in accordance with embodiments of the present disclosure.



FIG. 8C illustrates example steps and parameters for applying an agent to a cell growth surface in accordance with an embodiment of the present disclosure.



FIG. 9A depicts a flow diagram illustrating the operational characteristics of a process for applying an agent to a cell growth surface in accordance with embodiments of the present disclosure.



FIG. 9B depicts a flow diagram illustrating the operational characteristics of a process for applying an agent to a cell growth surface in accordance with embodiments of the present disclosure.



FIG. 10 illustrates an example processing system of a cell expansion system upon which embodiments of the present disclosure may be implemented.



FIG. 11 depicts example cell yields using a coating application(s) in accordance with embodiments of the present disclosure.



FIG. 12A illustrates example results of expanding cells using various coating and cell loading procedures in accordance with embodiments of the present disclosure.



FIG. 12B depicts example results of expanding cells using various coating and cell loading procedures in accordance with embodiments of the present disclosure.



FIG. 13A illustrates example results of expanding cells using various coating and cell loading procedures in accordance with embodiments of the present disclosure.



FIG. 13B depicts example results of expanding cells using various coating and cell loading procedures in accordance with embodiments of the present disclosure.





DETAILED DESCRIPTION

The following Detailed Description provides a discussion of illustrative embodiments with reference to the accompanying drawings. The inclusion of specific embodiments herein should not be construed as limiting or restricting the present disclosure. Further, while language specific to features, acts, and/or structures, for example, may be used in describing embodiments herein, the claims are not limited to the features, acts, and/or structures described. A person of skill in the art will appreciate that other embodiments, including improvements, are within the spirit and scope of the present disclosure. Further, any alternatives or additions, including any listed as separate embodiments, may be used or incorporated with any other embodiments herein described.


Embodiments of the present disclosure are generally directed to methods and systems for applying a coating agent or reagent to a cell growth surface to promote cell contact, e.g., adherence, and subsequent expansion of cells. In an embodiment, such application comprises an active promotion of a coating agent or reagent to the cell growth surface, such as the cell growth surface of a hollow fiber(s) where a hollow fiber bioreactor may be used for cell expansion in a cell expansion system. Controlling fluid movement in a bioreactor or cell growth chamber allows for the active promotion of a coating agent or reagent to a cell growth surface.


Passive coating processes may involve the passive application of a coating agent to a cell growth surface, in which a coating agent(s) may be passively applied to a cell growth chamber of an automated cell expansion system using circulating flow, for example. A coating agent(s) may be loaded into an intracapillary or extracapillary side of a bioreactor, for example. The coating agent(s) may then be circulated in the intracapillary or extracapillary loop for a particular, e.g., first, time period. As such, the bioreactor may be passively coated using circulating flow in the IC (or EC) loop, in which such process may take multiple hours, for example. Such coating procedure may take from about four (4) hours to about twenty-four (24) hours, for example, of circulation of a coating agent to achieve coating of the cell growth surface. As an example, a bioreactor coating protocol may load a coating agent into the intracapillary side of a bioreactor in a cell expansion system. The coating agent may then be circulated in the intracapillary circulation loop for a minimum of sixteen (16) hours. A user utilizing such process may therefore use at least two cell expansion systems, in which the user may begin, in a second cell expansion system, any additional expansion of a population of cells harvested from a first cell expansion system (where cells may not be stored in a non-cryopreserved state for up to sixteen (16) hours, for example).


Embodiments herein provide for the active pushing or active promotion of a coating agent solution to a cell growth surface. Rather than passively coating the bioreactor using circulating flow in the IC loop, for example, for many hours, a coating solution, e.g., a fluid(s) and a coating agent(s), can be actively pushed into the IC loop, and the fluid(s) may be pushed through the pores of the bioreactor, leaving a residual layer of adherence promoting proteins on the IC side of the bioreactor fibers to facilitate the attachment of adherent cells. In an embodiment, ultrafiltration may be used to allow a coating agent or reagent to be promoted to the growth surface of a hollow fiber, for example. Ultrafiltration, e.g., positive ultrafiltration, may be used to move fluid from a first side of a hollow fiber to a second side of a hollow fiber. For example, utilizing positive ultrafiltration of a fluid, the fluid may be moved from the IC side of a hollow fiber or hollow fiber membrane to the EC side of the hollow fiber or hollow fiber membrane. Such fluid movement may decrease the time it takes for a chemical reaction to occur between a coating agent or reagent and a growth surface of the bioreactor to coat the cell growth surface. The molecular barrier created by the specified construction of the hollow fibers in the bioreactor may be such that the coating agent or reagent may not be able to pass through the fiber wall along with the fluid in which it is suspended. The adherence promoting proteins of the coating agent may remain in a residual layer on a first side of the hollow fiber(s) as the solution is pushed through the pores of the fibers to a second side of the hollow fiber(s). Moving the fluid using ultrafiltration, e.g., positive ultrafiltration, may thus result in “actively” promoting the coating agent or reagent to the surface of the hollow fiber(s), according to embodiments.


For example, a coating agent(s) may be introduced to the fibers of a hollow fiber bioreactor on the IC (or EC) side. Such coating agent(s) may be suspended in a solution, e.g., coating solution. The IC outlet or waste valve may be closed, with the EC outlet or waste valve open. The IC inlet rate may be set to wash the IC side with media, such as phosphate buffered saline (PBS), for example. Such fluid may have no pathway but through the pores of the fibers (IC outlet valve closed). Accordingly, the solution may flow through the pores of the fibers from the IC side to the EC side. The coating agent, e.g., CPPT, may be hydrostatically deposited onto the inner wall(s) of the bioreactor fiber for a defined time period. For example, such time period may be about ten (10) minutes, according to an embodiment. Such membrane ultrafiltration method allows adherence promoting proteins to be physisorbed on the bioreactor fibers as the solution flows through the pores of the fiber from the IC side to the EC side, for example.


In an embodiment, such active moving of the coating agent to the cell growth surface(s) may significantly decrease the amount of time it may take to coat the cell growth surface as compared to other methods of coating a cell growth surface. In embodiments, such coating procedure using ultrafiltration may be referred to as an expedited coating procedure. Such expedited coating procedure using active moving of the coating agent to the cell growth surface(s) through ultrafiltration may use less time to coat the cell growth surface than procedures using passive coating procedures which may take overnight or about twelve (12) hours to about sixteen (16) hours to coat the bioreactor. For example, such expedited coating procedure may take less than or equal to about four (4) hours. In embodiments, such expedited coating procedure may take any time period in a range from above or equal to about five (5) minutes to less than or equal to about sixty (60) minutes, or any other range therein, depending on the procedure. For example, such coating procedure may take less than or equal to about ten (10) minutes, less than or equal to about twelve (12) minutes, less than or equal to about fifteen (15) minutes, less than or equal to about twenty (20) minutes, less than or equal to about thirty (30) minutes, less than or equal to about forty-five (45) minutes, less than or equal to about sixty (60) minutes, etc.


Embodiments are directed to a cell expansion system, as described above. In embodiments, such cell expansion system is closed, in which a closed cell expansion system comprises contents that are not directly exposed to the atmosphere. Such cell expansion system may be automated. In embodiments, cells, of both adherent and non-adherent or suspension type, may be grown in a bioreactor in the cell expansion system. According to embodiments, the cell expansion system may include base media or other type of media. Methods for replenishment of media are provided for cell growth occurring in a bioreactor of the closed cell expansion system. In embodiments, the bioreactor used with such systems is a hollow fiber bioreactor. Many types of bioreactors may be used in accordance with embodiments of the present disclosure.


The system may include, in embodiments, a bioreactor that further includes a first fluid flow path having at least opposing ends, a first opposing end of the first fluid flow path fluidly associated with a first port of a hollow fiber membrane and a second end of the first fluid flow path fluidly associated with a second port of the hollow fiber membrane, in which the first fluid flow path comprises an intracapillary portion of the hollow fiber membrane. In embodiments, a hollow fiber membrane comprises a plurality of hollow fibers. The system may further include a fluid inlet path fluidly associated with the first fluid flow path, in which a plurality of cells are introduced into the first fluid flow path through a first fluid inlet path. A first pump for circulating fluid in the first fluid flow path of the bioreactor may also be included. In embodiments, the system includes a controller for controlling operation of the first pump. In an embodiment, the controller is a computing system, including a processor, for example. The controller is configured, in embodiments, to control the pump to circulate a fluid at a first rate within the first fluid flow path. In some embodiments, a second pump for transferring intracapillary inlet fluid from an intracapillary media bag to the first fluid flow path and a second controller for controlling operation of the second pump are included. The second controller, in embodiments, controls the second pump to transfer cells from a cell inlet bag to the first fluid flow path, for example. Additional controllers, e.g., third controller, fourth controller, fifth controller, sixth controller, etc., may be used in accordance with embodiments. Further, additional pumps, e.g., third pump, fourth pump, fifth pump, sixth pump, etc., may be used in accordance with embodiments of the present disclosure. In addition, while the present disclosure may refer to a media bag, a cell inlet bag, etc., multiple bags, e.g., a first media bag, a second media bag, a third media bag, a first cell inlet bag, a second cell inlet bag, a third cell inlet bag, etc., and/or other types of containers, may be used in embodiments. In other embodiments, a single media bag, a single cell inlet bag, etc., may be used. Further, additional or other fluid paths, e.g., a second fluid flow path, a second fluid inlet path, etc., may be included in embodiments.


In other embodiments, the system is controlled by, for example: a processor coupled to the cell expansion system; a display device, in communication with the processor, and operable to display data; and a memory, in communication with and readable by the processor, and containing a series of instructions. In embodiments, when the instructions are executed by the processor, the processor receives an instruction to coat the bioreactor, for example. In response to the instruction to coat the bioreactor, the processor may execute a series of steps to coat the bioreactor and may next receive an instruction to load cells into the bioreactor, for example. In response to the instruction to load cells, the processor may execute a series of steps to load the cells from a cell inlet bag, for example, into the bioreactor.


A schematic of an example cell expansion system (CES) is depicted in FIG. 1A, in accordance with embodiments of the present disclosure. CES 10 includes first fluid circulation path 12 and second fluid circulation path 14. First fluid flow path 16 has at least opposing ends 18 and 20 fluidly associated with a hollow fiber cell growth chamber 24 (also referred to herein as a “bioreactor”), according to embodiments. Specifically, opposing end 18 may be fluidly associated with a first inlet 22 of cell growth chamber 24, and opposing end 20 may be fluidly associated with first outlet 28 of cell growth chamber 24. Fluid in first circulation path 12 flows through the interior of hollow fibers 116 (see FIG. 1B) of hollow fiber membrane 117 (see FIG. 1B) disposed in cell growth chamber 24 (cell growth chambers and hollow fiber membranes are described in more detail infra). Further, first fluid flow control device 30 may be operably connected to first fluid flow path 16 and may control the flow of fluid in first circulation path 12.


Second fluid circulation path 14 includes second fluid flow path 34, cell growth chamber 24, and a second fluid flow control device 32. The second fluid flow path 34 has at least opposing ends 36 and 38, according to embodiments. Opposing ends 36 and 38 of second fluid flow path 34 may be fluidly associated with inlet port 40 and outlet port 42 respectively of cell growth chamber 24. Fluid flowing through cell growth chamber 24 may be in contact with the outside of hollow fiber membrane 117 (see FIG. 1B) in the cell growth chamber 24, in which a hollow fiber membrane comprises a plurality of hollow fibers. Second fluid circulation path 14 may be operably connected to second fluid flow control device 32.


First and second fluid circulation paths 12 and 14 may thus be separated in cell growth chamber 24 by a hollow fiber membrane 117 (see FIG. 1B). Fluid in first fluid circulation path 12 flows through the intracapillary (“IC”) space of the hollow fibers in the cell growth chamber 24. First circulation path 12 may be referred to as the “IC loop.” Fluid in second circulation path 14 flows through the extracapillary (“EC”) space in the cell growth chamber 24. Second fluid circulation path 14 may be referred to as the “EC loop.” Fluid in first fluid circulation path 12 may flow in either a co-current or counter-current direction with respect to the flow of fluid in second fluid circulation path 14, according to embodiments.


Fluid inlet path 44 may be fluidly associated with first fluid circulation path 12. Fluid inlet path 44 allows fluid into first fluid circulation path 12, while fluid outlet path 46 allows fluid to leave CES 10. Third fluid flow control device 48 may be operably associated with fluid inlet path 44. Alternatively, third fluid flow control device 48 may alternatively be associated with first outlet path 46.


Fluid flow control devices as used herein may comprise a pump, valve, clamp, or combination thereof, according to embodiments. Multiple pumps, valves, and/or clamps can be arranged in any combination. In various embodiments, the fluid flow control device is or includes a peristaltic pump. In embodiments, fluid circulation paths, inlet ports, and outlet ports may be constructed of tubing of any material.


Various components are referred to herein as “operably associated.” As used herein, “operably associated” refers to components that are linked together in operable fashion and encompasses embodiments in which components are linked directly, as well as embodiments in which additional components are placed between the two linked components. “Operably associated” components can be “fluidly associated.” “Fluidly associated” refers to components that are linked together such that fluid can be transported between them. “Fluidly associated” encompasses embodiments in which additional components are disposed between the two fluidly associated components, as well as components that are directly connected. Fluidly associated components can include components that do not contact fluid, but contact other components to manipulate the system (e.g., a peristaltic pump that pumps fluids through flexible tubing by compressing the exterior of the tube).


Generally, any kind of fluid, including buffers, protein containing fluid, and cell-containing fluid, for example, can flow through the various circulations paths, inlet paths, and outlet paths. As used herein, “fluid,” “media,” and “fluid media” are used interchangeably.


Turning to FIG. 1B, an example of a hollow fiber cell growth chamber 100 which may be used with the present disclosure is shown in front side elevation view. Cell growth chamber 100 has a longitudinal axis LA-LA and includes cell growth chamber housing 104. In at least one embodiment, cell growth chamber housing 104 includes four openings or ports: IC inlet port 108, IC outlet port 120, EC inlet port 128, and EC outlet port 132.


According to embodiments of the present disclosure, fluid in a first circulation path enters cell growth chamber 100 through IC inlet port 108 at a first longitudinal end 112 of the cell growth chamber 100, passes into and through the intracapillary side (referred to in various embodiments as the intracapillary (“IC”) side or “IC space” of a hollow fiber membrane) of a plurality of hollow fibers 116 comprising hollow fiber membrane 117, and out of cell growth chamber 100 through IC outlet port 120 located at a second longitudinal end 124 of the cell growth chamber 100. The fluid path between the IC inlet port 108 and the IC outlet port 120 defines the IC portion 126 of the cell growth chamber 100. Fluid in a second circulation path flows in the cell growth chamber 100 through EC inlet port 128, comes in contact with the extracapillary side or outside (referred to as the “EC side” or “EC space” of the membrane) of the hollow fibers 116, and exits cell growth chamber 100 via EC outlet port 132. The fluid path between the EC inlet port 128 and the EC outlet port 132 comprises the EC portion 136 of the cell growth chamber 100. Fluid entering cell growth chamber 100 via the EC inlet port 128 may be in contact with the outside of the hollow fibers 116. Small molecules (e.g., ions, water, oxygen, lactate, etc.) may diffuse through the hollow fibers 116 from the interior or IC space of the hollow fiber to the exterior or EC space, or from the EC space to the IC space. Large molecular weight molecules, such as growth factors, are typically too large to pass through the hollow fiber membrane, and may remain in the IC space of the hollow fibers 116. The media may be replaced as needed, in embodiments. Media may also be circulated through an oxygenator or gas transfer module to exchange gasses as needed. Cells may be contained within a first circulation path and/or a second circulation path, as described below, and may be on either the IC side and/or EC side of the membrane, according to embodiments.


The material used to make the hollow fiber membrane 117 may be any biocompatible polymeric material which is capable of being made into hollow fibers. One material which may be used is a synthetic polysulfone-based material, according to an embodiment of the present disclosure. In order for the cells to adhere to the surface of the hollow fibers, the surface may be modified in some way, either by coating at least the cell growth surface with a protein such as fibronectin or collagen, for example, or by exposing the surface to radiation, according to embodiments. Gamma treating the membrane surface allows for attachment of adherent cells without additionally coating the membrane with fibronectin, cryoprecipitate, or the like. Bioreactors made of gamma treated membranes may be reused. Other coatings and/or treatments for cell attachment may be used in accordance with embodiments of the present disclosure.


In embodiments, the CES (such as CES 500 (see FIG. 5) and/or CES 600 (see FIG. 6), for example) may include a device configured to move or “rock” the cell growth chamber relative to other components of the cell expansion system by attaching it to a rotational and/or lateral rocking device. FIG. 1C shows one such device, in which a bioreactor 100 may be rotationally connected to two rotational rocking components and to a lateral rocking component, according to an embodiment.


A first rotational rocking component 138 rotates the bioreactor 100 around central axis 142 of the bioreactor 100. Rotational rocking component 138 may be rotationally associated with bioreactor 100. In embodiments, bioreactor 100 may be rotated continuously in a single direction around central axis 142 in a clockwise or counterclockwise direction. Alternatively, bioreactor 100 may rotate in alternating fashion, first clockwise, then counterclockwise, for example, around central axis 142, according to embodiments.


The CES may also include a second rotational rocking component that rotates bioreactor 100 around rotational axis 144. Rotational axis 144 may pass through the center point of bioreactor 100 and may be normal to central axis 142. Bioreactor 100 may be rotated continuously in a single direction around rotational axis 144 in a clockwise or counterclockwise direction, in embodiments. Alternatively, bioreactor 100 may be rotated around rotational axis 144 in an alternating fashion, first clockwise, then counterclockwise, for example. In various embodiments, bioreactor 100 may also be rotated around rotational axis 144 and positioned in a horizontal or vertical orientation relative to gravity.


In embodiments, lateral rocking component 140 may be laterally associated with bioreactor 100. The plane of lateral rocking component 140 moves laterally in the −x and −y directions, in embodiments. The settling of cells in the bioreactor may be reduced by movement of cell-containing media within the hollow fibers, according to embodiments.


The rotational and/or lateral movement of a rocking device may reduce the settling of cells within the device and reduce the likelihood of cells becoming trapped within a portion of the bioreactor. The rate of cells settling in the cell growth chamber is proportional to the density difference between the cells and the suspension media, according to Stoke's Law. In some embodiments, a 180 degree rotation (fast) with a pause (having a total combined time of 30 seconds, for example) repeated as described above keeps non-adherent red blood cells suspended. A minimum rotation of about 180 degrees would be preferred in an embodiment; however, one could use rotation of up to 360 degrees or greater. Different rocking components may be used separately, or may be combined in any combination. For example, a rocking component that rotates bioreactor 100 around central axis 142 may be combined with the rocking component that rotates bioreactor 100 around axis 144. Likewise, clockwise and counterclockwise rotation around different axes may be performed independently in any combination.


Turning to FIG. 2, an embodiment of a cell expansion system 200 with a pre-mounted fluid conveyance assembly is shown in accordance with embodiments of the present disclosure. The CES 200 includes a cell expansion machine 202 that comprises a hatch or closable door 204 for engagement with a back portion 206 of the cell expansion machine 202. An interior space 208 within the cell expansion machine 202 includes features adapted for receiving and engaging a pre-mounted fluid conveyance assembly 210. The pre-mounted fluid conveyance assembly 210 is detachably-attachable to the cell expansion machine 202 to facilitate relatively quick exchange of a new or unused pre-mounted fluid conveyance assembly 210 at a cell expansion machine 202 for a used pre-mounted fluid conveyance assembly 210 at the same cell expansion machine 202. A single cell expansion machine 202 may be operated to grow or expand a first set of cells using a first pre-mounted fluid conveyance assembly 210 and, thereafter, may be used to grow or expand a second set of cells using a second pre-mounted fluid conveyance assembly 210 without needing to be sanitized between interchanging the first pre-mounted fluid conveyance assembly 210 for the second pre-mounted fluid conveyance assembly 210. The pre-mounted fluid conveyance assembly 210 includes a bioreactor 100 and an oxygenator or gas transfer module 212 (also see FIG. 4). Tubing guide slots are shown as 214 for receiving various media tubing connected to pre-mounted fluid conveyance assembly 210, according to embodiments.


Next, FIG. 3 illustrates the back portion 206 of cell expansion machine 202 prior to detachably-attaching a pre-mounted fluid conveyance assembly 210 (FIG. 2), in accordance with embodiments of the present disclosure. The closable door 204 (shown in FIG. 2) is omitted from FIG. 3. The back portion 206 of the cell expansion machine 202 includes a number of different structures for working in combination with elements of a pre-mounted fluid conveyance assembly 210. More particularly, the back portion 206 of the cell expansion machine 202 includes a plurality of peristaltic pumps for cooperating with pump loops on the pre-mounted fluid conveyance assembly 210, including the IC circulation pump 218, the EC circulation pump 220, the IC inlet pump 222, and the EC inlet pump 224. In addition, the back portion 206 of the cell expansion machine 202 includes a plurality of valves, including the IC circulation valve 226, the reagent valve 228, the IC media valve 230, the air removal valve 232, the cell inlet valve 234, the wash valve 236, the distribution valve 238, the EC media valve 240, the IC waste or outlet valve 242, the EC waste or outlet valve 244, and the harvest valve 246. Several sensors are also associated with the back portion 206 of the cell expansion machine 202, including the IC outlet pressure sensor 248, the combination IC inlet pressure and temperature sensors 250, the combination EC inlet pressure and temperature sensors 252, and the EC outlet pressure sensor 254. Also shown is an optical sensor 256 for an air removal chamber, according to an embodiment.


In accordance with embodiments, a shaft or rocker control 258 for rotating the bioreactor 100 is shown. Shaft fitting 260 associated with the shaft or rocker control 258 allows for proper alignment of a shaft access aperture, see e.g., 424 (FIG. 4) of a tubing-organizer, see e.g., 300 (FIG. 4) of a pre-mounted conveyance assembly 210 or 400 with the back portion 206 of the cell expansion machine 202. Rotation of shaft or rocker control 258 imparts rotational movement to shaft fitting 260 and bioreactor 100. Thus, when an operator or user of the CES 200 attaches a new or unused pre-mounted fluid conveyance assembly 400 (FIG. 4) to the cell expansion machine 202, the alignment is a relatively simple matter of properly orienting the shaft access aperture 424 (FIG. 4) of the pre-mounted fluid conveyance assembly 210 or 400 with the shaft fitting 260.


Turning to FIG. 4, a perspective view of a detachably-attachable pre-mounted fluid conveyance assembly 400 is shown. The pre-mounted fluid conveyance assembly 400 may be detachably-attachable to the cell expansion machine 202 (FIGS. 2 and 3) to facilitate relatively quick exchange of a new or unused pre-mounted fluid conveyance assembly 400 at a cell expansion machine 202 for a used pre-mounted fluid conveyance assembly 400 at the same cell expansion machine 202. As shown in FIG. 4, the bioreactor 100 may be attached to a bioreactor coupling that includes a shaft fitting 402. The shaft fitting 402 includes one or more shaft fastening mechanisms, such as a biased arm or spring member 404 for engaging a shaft, e.g., 258 (shown in FIG. 3), of the cell expansion machine 202.


According to embodiments, the pre-mounted fluid conveyance assembly 400 includes tubing 408A, 408B, 408C, 408D, 408E, etc., and various tubing fittings to provide the fluid paths shown in FIGS. 5 and 6, as described below. Pump loops 406A and 406B may also be provided for the pump(s). In embodiments, although the various media may be provided at the site where the cell expansion machine 202 is located, the pre-mounted fluid conveyance assembly 400 may include sufficient tubing length to extend to the exterior of the cell expansion machine 202 and to enable welded connections to tubing associated with media bag(s) or container(s), according to embodiments.


Next, FIG. 5 illustrates a schematic of an embodiment of a cell expansion system 500, and FIG. 6 illustrates a schematic of another embodiment of a cell expansion system 600. In the embodiments shown in FIGS. 5 and 6, and as described below, the cells are grown in the IC space. However, the disclosure is not limited to such examples and may in other embodiments provide for cells to be grown in the EC space.



FIG. 5 illustrates a CES 500, which includes first fluid circulation path 502 (also referred to as the “intracapillary loop” or “IC loop”) and second fluid circulation path 504 (also referred to as the “extracapillary loop” or “EC loop”), according to embodiments. First fluid flow path 506 may be fluidly associated with cell growth chamber 501 to form first fluid circulation path 502. Fluid flows into cell growth chamber 501 through IC inlet port 501A, through hollow fibers in cell growth chamber 501, and exits via IC outlet port 501B. Pressure gauge 510 measures the pressure of media leaving cell growth chamber 501. Media flows through IC circulation pump 512 which may be used to control the rate of media flow. IC circulation pump 512 may pump the fluid in a first direction or second direction opposite the first direction. Exit port 501B may be used as an inlet in the reverse direction. Media entering the IC loop may enter through valve 514. As those skilled in the art will appreciate, additional valves, pressure gauges, pressure/temperature sensors, ports, and/or other devices may be placed at various locations to isolate and/or measure characteristics of the media along portions of the fluid paths. Accordingly, it is to be understood that the schematic shown represents one possible configuration for various elements of the CES 500, and modifications to the schematic shown are within the scope of the one or more present embodiments.


With regard to the IC loop 502, samples of media may be obtained from sample port 516 or sample coil 518 during operation. Pressure/temperature gauge 520 disposed in first fluid circulation path 502 allows detection of media pressure and temperature during operation. Media then returns to IC inlet port 501A to complete fluid circulation path 502. Cells grown/expanded in cell growth chamber 501 may be flushed out of cell growth chamber 501 into harvest bag 599 through valve 598 or redistributed within the hollow fibers for further growth.


Fluid in second fluid circulation path 504 enters cell growth chamber 501 via EC inlet port 501C, and leaves cell growth chamber 501 via EC outlet port 501D. Media in the EC loop 504 may be in contact with the outside of the hollow fibers in the cell growth chamber 501, thereby allowing diffusion of small molecules into and out of the hollow fibers.


Pressure/temperature gauge 524 disposed in the second fluid circulation path 504 allows the pressure and temperature of media to be measured before the media enters the EC space of the cell growth chamber 501, according to an embodiment. Pressure gauge 526 allows the pressure of media in the second fluid circulation path 504 to be measured after it leaves the cell growth chamber 501. With regard to the EC loop, samples of media may be obtained from sample port 530 or a sample coil during operation.


In embodiments, after leaving EC outlet port 501D of cell growth chamber 501, fluid in second fluid circulation path 504 passes through EC circulation pump 528 to oxygenator or gas transfer module 532. EC circulation pump 528 may also pump the fluid in opposing directions. Second fluid flow path 522 may be fluidly associated with oxygenator or gas transfer module 532 via oxygenator inlet port 534 and oxygenator outlet port 536. In operation, fluid media flows into oxygenator or gas transfer module 532 via oxygenator inlet port 534, and exits oxygenator or gas transfer module 532 via oxygenator outlet port 536. Oxygenator or gas transfer module 532 adds oxygen to, and removes bubbles from, media in the CES 500, for example. In various embodiments, media in second fluid circulation path 504 may be in equilibrium with gas entering oxygenator or gas transfer module 532. The oxygenator or gas transfer module 532 may be any appropriately sized oxygenator or gas transfer device. Air or gas flows into oxygenator or gas transfer module 532 via filter 538 and out of oxygenator or gas transfer device 532 through filter 540. Filters 538 and 540 reduce or prevent contamination of oxygenator or gas transfer module 532 and associated media. Air or gas purged from the CES 500 during portions of a priming sequence may vent to the atmosphere via the oxygenator or gas transfer module 532.


In the configuration depicted for CES 500, fluid media in first fluid circulation path 502 and second fluid circulation path 504 flows through cell growth chamber 501 in the same direction (a co-current configuration). The CES 500 may also be configured to flow in a counter-current conformation.


In accordance with at least one embodiment, media, including cells (from bag 562), and fluid media from bag 546 may be introduced to first fluid circulation path 502 via first fluid flow path 506. Fluid container 562 (e.g., Cell Inlet Bag or Saline Priming Fluid for priming air out of the system) may be fluidly associated with the first fluid flow path 506 and the first fluid circulation path 502 via valve 564.


Fluid containers, or media bags, 544 (e.g., Reagent) and 546 (e.g., IC Media) may be fluidly associated with either first fluid inlet path 542 via valves 548 and 550, respectively, or second fluid inlet path 574 via valves 570 and 576. First and second sterile sealable input priming paths 508 and 509 are also provided. An air removal chamber (ARC) 556 may be fluidly associated with first circulation path 502. The air removal chamber 556 may include one or more ultrasonic sensors including an upper sensor and lower sensor to detect air, a lack of fluid, and/or a gas/fluid interface, e.g., an air/fluid interface, at certain measuring positions within the air removal chamber 556. For example, ultrasonic sensors may be used near the bottom and/or near the top of the air removal chamber 556 to detect air, fluid, and/or an air/fluid interface at these locations. Embodiments provide for the use of numerous other types of sensors without departing from the spirit and scope of the present disclosure. For example, optical sensors may be used in accordance with embodiments of the present disclosure. Air or gas purged from the CES 500 during portions of the priming sequence or other protocols may vent to the atmosphere out air valve 560 via line 558 that may be fluidly associated with air removal chamber 556.


EC media (e.g., from bag 568) or wash solution (e.g., from bag 566) may be added to either the first or second fluid flow paths. Fluid container 566 may be fluidly associated with valve 570 that may be fluidly associated with first fluid circulation path 502 via distribution valve 572 and first fluid inlet path 542. Alternatively, fluid container 566 may be fluidly associated with second fluid circulation path 504 via second fluid inlet path 574 and EC inlet path 584 by opening valve 570 and closing distribution valve 572. Likewise, fluid container 568 may be fluidly associated with valve 576 that may be fluidly associated with first fluid circulation path 502 via first fluid inlet path 542 and distribution valve 572. Alternatively, fluid container 568 may be fluidly associated with second fluid inlet path 574 by opening valve 576 and closing distribution valve 572.


An optional heat exchanger 552 may be provided for media reagent or wash solution introduction.


In the IC loop, fluid may be initially advanced by the IC inlet pump 554. In the EC loop, fluid may be initially advanced by the EC inlet pump 578. An air detector 580, such as an ultrasonic sensor, may also be associated with the EC inlet path 584.


In at least one embodiment, first and second fluid circulation paths 502 and 504 are connected to waste or outlet line 588. When valve 590 is opened, IC media may flow through waste line 588 and to waste or outlet bag 586. Likewise, when valve 582 is opened, EC media may flow through waste line 588 to waste or outlet bag 586.


In embodiments, cells may be harvested via cell harvest path 596. Here, cells from cell growth chamber 501 may be harvested by pumping the IC media containing the cells through cell harvest path 596 and valve 598 to cell harvest bag 599.


Various components of the CES 500 may be contained or housed within a machine or housing, such as cell expansion machine 202 (FIGS. 2 and 3), wherein the machine maintains cells and media, for example, at a predetermined temperature.


Turning to FIG. 6, a schematic of another embodiment of a cell expansion system 600 is shown. CES 600 includes a first fluid circulation path 602 (also referred to as the “intracapillary loop” or “IC loop”) and second fluid circulation path 604 (also referred to as the “extracapillary loop” or “EC loop”). First fluid flow path 606 may be fluidly associated with cell growth chamber 601 to form first fluid circulation path 602. Fluid flows into cell growth chamber 601 through IC inlet port 601A, through hollow fibers in cell growth chamber 601, and exits via IC outlet port 601B. Pressure sensor 610 measures the pressure of media leaving cell growth chamber 601. In addition to pressure, sensor 610 may, in embodiments, also be a temperature sensor that detects the media pressure and temperature during operation. Media flows through IC circulation pump 612 which may be used to control the rate of media flow. IC circulation pump 612 may pump the fluid in a first direction or second direction opposite the first direction. Exit port 601B may be used as an inlet in the reverse direction. Media entering the IC loop may enter through valve 614. As those skilled in the art will appreciate, additional valves, pressure gauges, pressure/temperature sensors, ports, and/or other devices may be placed at various locations to isolate and/or measure characteristics of the media along portions of the fluid paths. Accordingly, it is to be understood that the schematic shown represents one possible configuration for various elements of the CES 600, and modifications to the schematic shown are within the scope of the one or more present embodiments.


With regard to the IC loop, samples of media may be obtained from sample coil 618 during operation. Media then returns to IC inlet port 601A to complete fluid circulation path 602. Cells grown/expanded in cell growth chamber 601 may be flushed out of cell growth chamber 601 into harvest bag 699 through valve 698 and line 697. Alternatively, when valve 698 is closed, the cells may be redistributed within chamber 601 for further growth.


Fluid in second fluid circulation path 604 enters cell growth chamber 601 via EC inlet port 601C and leaves cell growth chamber 601 via EC outlet port 601D. Media in the EC loop may be in contact with the outside of the hollow fibers in the cell growth chamber 601, thereby allowing diffusion of small molecules into and out of the hollow fibers that may be within chamber 601, according to an embodiment.


Pressure/temperature sensor 624 disposed in the second fluid circulation path 604 allows the pressure and temperature of media to be measured before the media enters the EC space of the cell growth chamber 601. Sensor 626 allows the pressure and/or temperature of media in the second fluid circulation path 604 to be measured after it leaves the cell growth chamber 601. With regard to the EC loop, samples of media may be obtained from sample port 630 or a sample coil during operation.


After leaving EC outlet port 601D of cell growth chamber 601, fluid in second fluid circulation path 604 passes through EC circulation pump 628 to oxygenator or gas transfer module 632. EC circulation pump 628 may also pump the fluid in opposing directions, according to embodiments. Second fluid flow path 622 may be fluidly associated with oxygenator or gas transfer module 632 via an inlet port 632A and an outlet port 632B of oxygenator or gas transfer module 632. In operation, fluid media flows into oxygenator or gas transfer module 632 via inlet port 632A, and exits oxygenator or gas transfer module 632 via outlet port 632B. Oxygenator or gas transfer module 632 adds oxygen to, and removes bubbles from, media in the CES 600, for example. In various embodiments, media in second fluid circulation path 604 may be in equilibrium with gas entering oxygenator or gas transfer module 632. The oxygenator or gas transfer module 632 may be any appropriately sized device useful for oxygenation or gas transfer. Air or gas flows into oxygenator or gas transfer module 632 via filter 638 and out of oxygenator or gas transfer device 632 through filter 640. Filters 638 and 640 reduce or prevent contamination of oxygenator or gas transfer module 632 and associated media. Air or gas purged from the CES 600 during portions of a priming sequence may vent to the atmosphere via the oxygenator or gas transfer module 632.


In the configuration depicted for CES 600, fluid media in first fluid circulation path 602 and second fluid circulation path 604 flows through cell growth chamber 601 in the same direction (a co-current configuration). The CES 600 may also be configured to flow in a counter-current conformation, according to embodiments.


In accordance with at least one embodiment, media, including cells (from a source such as a cell container, e.g., a bag) may be attached at attachment point 662, and fluid media from a media source may be attached at attachment point 646. The cells and media may be introduced into first fluid circulation path 602 via first fluid flow path 606. Attachment point 662 may be fluidly associated with the first fluid flow path 606 via valve 664, and attachment point 646 may be fluidly associated with the first fluid flow path 606 via valve 650. A reagent source may be fluidly connected to point 644 and be associated with fluid inlet path 642 via valve 648, or second fluid inlet path 674 via valves 648 and 672.


Air removal chamber (ARC) 656 may be fluidly associated with first circulation path 602. The air removal chamber 656 may include one or more sensors including an upper sensor and lower sensor to detect air, a lack of fluid, and/or a gas/fluid interface, e.g., an air/fluid interface, at certain measuring positions within the air removal chamber 656. For example, ultrasonic sensors may be used near the bottom and/or near the top of the air removal chamber 656 to detect air, fluid, and/or an air/fluid interface at these locations. Embodiments provide for the use of numerous other types of sensors without departing from the spirit and scope of the present disclosure. For example, optical sensors may be used in accordance with embodiments of the present disclosure. Air or gas purged from the CES 600 during portions of a priming sequence or other protocol(s) may vent to the atmosphere out air valve 660 via line 658 that may be fluidly associated with air removal chamber 656.


An EC media source may be attached to EC media attachment point 668, and a wash solution source may be attached to wash solution attachment point 666, to add EC media and/or wash solution to either the first or second fluid flow path. Attachment point 666 may be fluidly associated with valve 670 that may be fluidly associated with first fluid circulation path 602 via valve 672 and first fluid inlet path 642. Alternatively, attachment point 666 may be fluidly associated with second fluid circulation path 604 via second fluid inlet path 674 and second fluid flow path 684 by opening valve 670 and closing valve 672. Likewise, attachment point 668 may be fluidly associated with valve 676 that may be fluidly associated with first fluid circulation path 602 via first fluid inlet path 642 and valve 672. Alternatively, fluid container 668 may be fluidly associated with second fluid inlet path 674 by opening valve 676 and closing distribution valve 672.


In the IC loop, fluid may be initially advanced by the IC inlet pump 654. In the EC loop, fluid may be initially advanced by the EC inlet pump 678. An air detector 680, such as an ultrasonic sensor, may also be associated with the EC inlet path 684.


In at least one embodiment, first and second fluid circulation paths 602 and 604 are connected to waste or outlet line 688. When valve 690 is opened, IC media may flow through waste line 688 and to waste or outlet bag 686. Likewise, when valve 692 is opened, EC media may flow to waste or outlet bag 686.


After cells have been grown in cell growth chamber 601, they may be harvested via cell harvest path 697. Here, cells from cell growth chamber 601 may be harvested by pumping the IC media containing the cells through cell harvest path 697, with valve 698 open, into cell harvest bag 699.


Various components of the CES 600 may be contained or housed within a machine or housing, such as cell expansion machine 202 (FIGS. 2 and 3), wherein the machine maintains cells and media, for example, at a predetermined temperature. It is further noted that, in embodiments, components of CES 600 and CES 500 (FIG. 5) may be combined. In other embodiments, a CES may include fewer or additional components than those shown in FIGS. 5 and 6 and still be within the scope of the present disclosure. An example of a cell expansion system that may incorporate features of the present disclosure is the Quantum® Cell Expansion System (the “Quantum® System”), manufactured by Terumo BCT, Inc. in Lakewood, Colorado.


Examples and further description of cell expansion systems are provided in U.S. patent application Ser. No. 12/042,798 (U.S. Pat. No. 8,309,347), entitled, “Cell Expansion System and Methods of Use,” issued on Nov. 13, 2012, which is hereby incorporated by reference herein in its entirety for all that it teaches and for all purposes.


While various example embodiments of a cell expansion system and methods associated therewith have been described, FIG. 7 illustrates example operational steps 700 of a process for applying an agent to a cell growth surface that may be used with a cell expansion system, such as CES 500 (FIG. 5) or CES 600 (FIG. 6), in accordance with embodiments of the present disclosure. FIG. 7 will be described in conjunction with example settings and media introduction. However, the embodiments presented herein are not limited to this example; rather, the embodiments can be modified to meet other system designs or configurations. START operation is initiated 702, and process 700 proceeds to load the disposable tubing set 704 onto the cell expansion system. Next, the system may be primed 706. In an embodiment, a user or an operator, for example, may provide an instruction to the system to prime by selecting a task for priming, for example. In an embodiment, such task for priming may be a pre-programmed task. The system 500 (FIG. 5) or 600 (FIG. 6) may be primed, for example, with phosphate-buffered saline (PBS). To prime the bioreactor 501, 601, a bag (e.g., 546) may be attached (for example, to connection point 646) to the system 500, 600. When referring to numerals in the Figures, for example, such as “Numeral, Numeral” (e.g., 500, 600), such nomenclature can mean “Numeral and/or Numeral” (e.g., 500 and/or 600). Valve 550, 650 may be opened. The PBS can then be directed into the first fluid circulation path 502, 602 by the IC inlet pump 554, 654 set to pump the PBS into the first fluid circulation path 502, 602. Valve 514, 614 may be opened while the PBS enters the bioreactor 501, 601 through the inlet 501A, 601A and out the outlet 501B, 601B. Once the bioreactor 501, 601 and/or the first fluid circulation path 502, 602 have media therein with air removed by the air removal chamber 556, 656, the bioreactor 501, 601 is primed, according to an embodiment.


In an embodiment, to further prime the bioreactor 501, 601, a bag (e.g., 568) may be attached (for example, to connection point 668) to the system 500, 600. Valve 576, 676 may be opened. A media, e.g., PBS, can then be directed into the second fluid circulation path 504, 604 by the EC inlet pump 578, 678 set to pump the media into the second fluid circulation path 504, 604. Valve 582, 692 may be closed while the media enters the bioreactor 501, 601 through the inlet 501C, 601C and out the outlet 501D, 601D of the EC loop. Once the bioreactor 501, 601 and/or the second fluid circulation path 504, 604 have media therein with air removed, e.g., by an air removal chamber, the bioreactor 501, 601 is primed, according to an embodiment.


Process 700 then proceeds to coat the cell growth surface, e.g., bioreactor 501, 601, in step 708, in which the cell growth surface may be coated with a coating agent or reagent. Any coating agent(s) or reagent(s), such as fibronectin or cryoprecipitate, for example, understood by those of skill in the art may be used. In embodiments, any combination of coating agent(s) or reagent(s) may be used. In an embodiment, an outlet or waste valve 590, 690 to one of the circulation loops, e.g., IC loop 502, 602, may be closed, while the outlet or waste valve 582, 692 to the other circulation loop, e.g., EC loop 504, 604, may be opened or remains open. For example, the IC waste or outlet valve 590, 690 may be closed while the EC waste or outlet valve 582, 692 is open. In embodiments, a coating agent or reagent may be loaded into a circulation loop, e.g., IC loop 502, 602, of the cell expansion system 500, 600 until the reagent bag (e.g., 544) or container is empty. Next, the reagent may be chased from an air removal chamber 556, 656 into the circulation loop, e.g., IC loop 502, 602. The bioreactor 501, 601, e.g., cell growth surface of hollow fibers where a hollow fiber bioreactor is used, may then be coated by controlling the fluid movement in the bioreactor 501, 601. In embodiments, such control of the fluid movement uses ultrafiltration, e.g., positive ultrafiltration, to move fluid from one side (e.g., the IC side 502, 602) of the bioreactor 501, 601 to the other side (e.g., the EC side 504, 604). For example, where the IC outlet or waste valve 590, 690 may be closed, with the EC outlet or waste valve open 582, 692, a fluid in the bioreactor 501, 601 may have no pathway but through the pores of the fibers (IC outlet valve 590, 690 closed). In an embodiment, the IC inlet rate may be set to wash the IC side 502, 602 with media or a fluid, such as phosphate buffered saline (PBS), for example. Accordingly, the solution may then flow through the pores of the fibers from the IC side 502, 602 to the EC side 504, 604. The coating agent, e.g., CPPT, may be hydrostatically deposited onto the wall(s), e.g., inner wall(s), of the bioreactor fiber for a defined time period. For example, such time period may be about ten (10) minutes, according to an embodiment. Other time periods may apply according to other embodiments of the present disclosure. Such membrane ultrafiltration method allows adherence promoting proteins to be physisorbed on the bioreactor fibers as the solution flows through the pores of the fiber from the IC side 502, 602 to the EC side 504, 604.


An example of the solutions being introduced to the system 500, 600 to coat the bioreactor may be as shown below:











TABLE 1





Bag (Connection
Solution
Volume (estimation based


Point)
in Bag
on factory default values)







Cell Inlet 562 (662)
None
N/A


Reagent 544 (644)
Reagent (e.g.,
e.g., 6-25 mL CPPT in 100 mL



CPPT or
total volume w/PBS



Fibronectin)



IC Media 546 (646)
None
N/A


Wash 566 (666)
PBS
1 L


EC Media 568 (668)
None
N/A









The coating of the bioreactor may occur in three stages. An example of the settings for the system 500, 600 for the first stage of introducing the solution(s) above may be as shown below:












TABLE 2







Component
Setting









IC Inlet valve configuration
Reagent (e.g., valves 548,




648, 514, 614 open)



IC Inlet Rate for Pump 554, 654
10 mL/min



IC Circulation Rate for Pump 512, 612
100 mL/min



EC Inlet valve configuration
None



EC Inlet Rate for Pump 578, 678
0 mL/min



EC Circulation Rate for Pump 528, 628
30 mL/min



Outlet valve configuration
EC Outlet (e.g., valve




582, 692 open)



Rocker Control
Stationary (0°)



Stop Condition
Empty Bag for bag 544










An example of the settings for the system 500, 600 for the second stage of coating the bioreactor, which chases or washes reagent from the air removal chamber 556, 656, may be as shown below:












TABLE 3







Component
Setting









IC Inlet valve configuration
Wash (e.g., valves




570, 670, 572, 672,




514, 614,




560, 660 open)



IC Inlet Rate for Pump 554, 654
10 mL/min



IC Circulation Rate for Pump 512, 612
100 mL/min



EC Inlet valve configuration
None



EC Inlet Rate for Pump 578, 678
0 mL/min



EC Circulation Rate for Pump 528, 628
30 mL/min



Outlet valve configuration
EC Outlet (e.g., valve




582, 692 open)



Rocker Control
Stationary (0°)



Stop Condition
IC Volume (e.g., 22 mL)










An example of the settings for the system 500, 600 for the third stage of coating the bioreactor, which causes ultrafiltration from the IC side 502, 602 to the EC side 504, 604, for example, may be as shown below:












TABLE 4







Component
Setting









IC Inlet valve configuration
Wash (e.g., valves 570,




670, 572, 672, 514, 614




open)



IC Inlet Rate for Pump 554, 654
50 mL/min



IC Circulation Rate for Pump 512, 612
−25 mL/min



EC Inlet valve configuration
Wash



EC Inlet Rate for Pump 578, 678
0.1 mL/min



EC Circulation Rate for Pump 528, 628
30 mL/min



Outlet valve configuration
EC Outlet (e.g., valve




582, 692 open)



Rocker Control
Stationary (0°)



Stop Condition
10 Min










In an embodiment, such active promoting of the coating agent to a cell growth surface, as described above, may significantly decrease the amount of time to coat the cell growth surface as compared to other methods of coating a cell growth surface. In embodiments, such coating procedure using ultrafiltration may be referred to as an expedited coating procedure. Such expedited coating procedure using active moving of the coating agent to the cell growth surface(s) through ultrafiltration may use less time to coat the cell growth surface than procedures using passive coating procedures which may take overnight or about twelve (12) hours to about sixteen (16) hours to coat the bioreactor. For example, such expedited coating procedure may take less than or equal to about four (4) hours. In embodiments, such expedited coating procedure may take any time period in a range from above or equal to about five (5) minutes to less than or equal to about sixty (60) minutes, or any other range therein, depending on the procedure. For example, such coating procedure may take less than or equal to about ten (10) minutes, less than or equal to about twelve (12) minutes, less than or equal to about fifteen (15) minutes, less than or equal to about twenty (20) minutes, less than or equal to about thirty (30) minutes, less than or equal to about forty-five (45) minutes, less than or equal to about sixty (60) minutes, etc. As described above, passive coating procedures may take about sixteen (16) hours to coat the bioreactor, for example. A significant time savings may be realized by using ultrafiltration for coating the bioreactor.


Returning to FIG. 7, once the bioreactor is coated, the IC/EC Washout task may be performed in step 710, in which fluid on the IC circulation loop 502, 602 and on the EC circulation loop 504, 604 may be replaced. The replacement volume may be determined by the number of IC Volumes and EC Volumes exchanged. An example of the solutions being introduced to the system 500, 600 during the IC/EC Washout task may be as shown below:











TABLE 5





Bag (Connection

Volume (estimation based


Point)
Solution in Bag
on factory default values)







Cell Inlet 562 (662)
None
N/A


Reagent 544 (644)
None
N/A


IC Media 546 (646)
Media with Protein
1.4 L


Wash 566 (666)
None
N/A


EC Media 568 (668)
None
N/A









An example of the settings for an IC/EC Washout task of the system 500, 600 may be as shown below:












TABLE 6







Component
Setting









IC Inlet valve configuration
IC Media (e.g., valves 550,




650, 514, 614 open)



IC Inlet Rate for Pump 554, 654
100 mL/min



IC Circulation Rate for Pump 512, 612
−17 mL/min



EC Inlet valve configuration
IC Media (e.g., valves 550,




650, 572, 672 open)



EC Inlet Rate for Pump 578, 678
148 mL/min



EC Circulation Rate for Pump 528, 628
−1.7 mL/min



Outlet valve configuration
IC and EC Outlet (e.g.,




valves 590, 690 and 582,




692 open)



Rocker Control
In Motion (−90°, 180°, in




1 sec intervals)



Stop Condition
Exchange (2.5 IC Volumes;




2.5 EC Volumes)










Next, to maintain the proper or desired gas concentration across the fibers in the bioreactor membrane, the condition media task 712 may be executed to allow the media to reach equilibrium with the provided gas supply before cells are loaded into the bioreactor. For example, rapid contact between the media and the gas supply provided by the gas transfer module or oxygenator 532, 632 may be provided by using a high EC circulation rate. The system 500, 600 may then be maintained in a proper or desired state until a user or operator, for example, is ready to load cells into the bioreactor 501, 601. In an embodiment, the system 500, 600 may be conditioned with complete media, for example. Complete media may be any media source used for cell growth. In an embodiment, complete media may comprise alpha-MEM (α-MEM) and fetal bovine serum (FBS), for example. Any type of media known to those of skill in the art may be used.


The condition media task 712 may be a two-step process where, in the first step, the system 500, 600 provides rapid contact between the media and the gas supply by using a high EC circulation rate.


In the second step, the system 500, 600 maintains the bioreactor 501, 601 in a proper state until an operator, for example, is ready to load the cells. An example of the solutions being introduced to the system 500, 600 during the condition media task 712 may be as shown below.


While an example media is shown in Table 7, any type of media known to those of skill in the art may be used.











TABLE 7





Bag (Connection

Volume (estimation based


Point)
Solution in Bag
on factory default values)







Cell Inlet 562 (662)
None
N/A


Reagent 544 (644)
None
N/A


IC Media 546 (646)
None
N/A


Wash 566 (666)
None
N/A


EC Media 568 (668)
Media with Protein
0.1 L plus 6 mL/hour



(e.g., αMEM with




GlutaMAX plus




10% FBS)









An example of the settings for a first step of the condition media task 712 may be as shown below:












TABLE 8







Component
Setting









IC Inlet valve configuration
None



IC Inlet Rate for Pump 554, 654
0 mL/min



IC Circulation Rate for Pump 512, 612
100 mL/min



EC Inlet valve configuration
EC Media (and/or IC Media)




(e.g., valve 576, 676 open)



EC Inlet Rate for Pump 578, 678
0.1 mL/min



EC Circulation Rate for Pump 528, 628
250 mL/min



Outlet valve configuration
EC Outlet (e.g., valve




582, 692 open)



Rocker Control
Stationary



Stop Condition
Time (e.g., 10 min)










An example of the settings for a second step of the condition media task 712 may be as shown below:










TABLE 9





Component
Setting







IC Inlet valve configuration
None


IC Inlet Rate for Pump 554, 654
 0 mL/min


IC Circulation Rate for Pump 512,
100 mL/min


612



EC Inlet valve configuration
EC Media (and/or IC Media) (e.g.,



valve 576, 676 open)


EC Inlet Rate for Pump 578, 678
0.1 mL/min


EC Circulation Rate for Pump 528,
 30 mL/min


628



Outlet valve configuration
EC Outlet (e.g., valve 582, 692



open)


Rocker Control
Stationary


Stop Condition
Manual









Process 700 next proceeds to loading cells 714 into the bioreactor 501, 601 from a cell inlet bag 562 (at connection point 662), for example. In an embodiment, the cells are loaded with uniform suspension 714. In an embodiment, the cells may be loaded into the bioreactor 501, 601 from the cell inlet bag 562 (at connection point 662) until the bag 562 is empty. Cells may then be chased or washed from the air removal chamber 556, 656 to the bioreactor 501, 601, according to an embodiment. In embodiments that utilize larger chase volumes, cells may be spread and move toward the IC outlet port 501B, 601B. The distribution of cells may be promoted across the membrane via IC circulation, such as through an IC circulation pump 512, 612, with no IC inlet, for example. Examples and further description of loading and distributing cells are provided in U.S. patent application Ser. No. 13/971,500 (U.S. Pat. No. 9,175,259), entitled, “Method of Loading and Distributing Cells in a Bioreactor of a Cell Expansion System,” issued Nov. 3, 2015, which is hereby incorporated by reference herein in its entirety for all that it teaches and for all purposes.


In another embodiment, the cells may be loaded 714 using another type of cell loading, such as a high flux cell load. In yet another embodiment, the cells may be loaded 714 using another type of loading, such as a bulls-eye cell loading technique. Examples and further description of bulls-eye cell loading procedure(s) are provided in U.S. patent application Ser. No. 14/542,276 (U.S. Pat. No. 9,617,506), entitled, “Expanding Cells in a Bioreactor,” issued on Apr. 11, 2017, which is hereby incorporated by reference herein in its entirety for all that it teaches and for all purposes.


An example of the solutions being introduced to the system 500, 600 to load cells 714 may be as shown below:











TABLE 10






Solution
Volume (estimation based on


Bag (Connection Point)
in Bag
factory default values)







Cell Inlet 562 (662)
Cells
Cells (e.g., mesenchymal stem cells




(MSC)) in 100 mL complete media


Reagent 544 (644)
None
N/A


IC Media 546 (646)
Media with
0.1 L



Protein



Wash 566 (666)
None
N/A


EC Media 568 (668)
None
N/A









The loading of cells 714 may occur in stages. An example of the settings for the system 500, 600 for an example first stage may be as shown below:










TABLE 11





Component
Setting







IC Inlet valve configuration
Cell Inlet (e.g., valves 564, 664,



514, 614 open)


IC Inlet Rate for Pump 554, 654
 50 mL/min


IC Circulation Rate for Pump 512,
200 mL/min


612



EC Inlet valve configuration
None


EC Inlet Rate for Pump 578, 678
 0 mL/min


EC Circulation Rate for Pump 528,
 30 mL/min


628



Outlet valve configuration
EC Outlet (e.g., valve 582, 692



open)


Rocker Control
In Motion (−90°, 180°, in 1 sec



intervals)


Stop Condition
ARC stop









An example of the settings for the system 500, 600 for an example second stage may be as shown below:










TABLE 12





Component
Setting







IC Inlet valve configuration
IC Media (e.g., valves 550, 650,



514, 614 open)


IC Inlet Rate for Pump 554, 654
 50 mL/min


IC Circulation Rate for Pump 512,
200 mL/min


612



EC Inlet valve configuration
None


EC Inlet Rate for Pump 578, 678
 0 mL/min


EC Circulation Rate for Pump 528,
 30 mL/min


628



Outlet valve configuration
EC Outlet (e.g., valve 582, 692



open)


Rocker Control
In Motion (−90°, 180°, in 1 sec



intervals)


Stop Condition
IC Volume (e.g., 22 mL)









An example of the settings for the system 500, 600 for an example third stage may be as shown below:










TABLE 13





Component
Setting







IC Inlet valve configuration
None


IC Inlet Rate for Pump 554, 654
 0 mL/min


IC Circulation Rate for Pump 512,
200 mL/min


612



EC Inlet valve configuration
None


EC Inlet Rate for Pump 578, 678
 0 mL/min


EC Circulation Rate for Pump 528,
 30 mL/min


628



Outlet valve configuration
EC Outlet (e.g., valve 582, 692



open)


Rocker Control
In Motion (−90°, 180°, in 1 sec



intervals)


Stop Condition
Time (2.0 Min)









Further, the cells, e.g., adherent cells, may be allowed to attach 716 to the hollow fibers. In an embodiment, in allowing the cells to attach 716, adherent cells are enabled to attach to the bioreactor membrane while allowing flow on the EC circulation loop 504, 604, with the pump (e.g., 512, 612, 554, 654) flow rate to the IC loop 502, 602 set to zero. An example of the solutions being introduced to the system 500, 600 during the process of cells attaching to the membrane 716 may be as shown below:











TABLE 14







Volume (estimation




based on factory


Bag (Connection Point)
Solution in Bag
default values)







Cell Inlet 562 (662)
None
N/A


Reagent 544 (644)
None
N/A


IC Media 546 (646)
Media with Protein
6 mL/hour


Wash 566 (666)
None
N/A


EC Media 568 (668)
None
N/A









An example of the settings for attaching to the membrane 716 in the system 500, 600 may be as shown below:










TABLE 15





Component
Setting







IC Inlet valve configuration
None


IC Inlet Rate for Pump 554, 654
  0 mL/min


IC Circulation Rate for Pump 512,
  0 mL/min


612



EC Inlet valve configuration
IC Media (e.g., valves 550, 650,



572, 672 open)


EC Inlet Rate for Pump 578, 678
0.1 mL/min


EC Circulation Rate for Pump 528,
 30 mL/min


628



Outlet valve configuration
EC Outlet (e.g., valve 582, 692



open)


Rocker Control
Stationary (at 180°)


Stop Condition
Manual









Next, the cells may be fed in step 718, in which a flow rate, e.g., low flow rate in an embodiment, is continuously added to the IC circulation loop 502, 602 and/or the EC circulation loop 504, 604. In an embodiment, the cells may be fed with media, such as media with protein, for example. Outlet settings allow for the removal of fluid added to the system, in accordance with embodiments. An example of the solutions being introduced to the system 500, 600 during the feed step 718 may be as shown below:











TABLE 16







Volume (estimation




based on factory


Bag (Connection Point)
Solution in Bag
default values)







Cell Inlet 562 (662)
None
N/A


Reagent 544 (644)
None
N/A


IC Media 546 (646)
Media with Protein
6 mL/hour


Wash 566 (666)
None
N/A


EC Media 568 (668)
None
N/A









An example of the settings for the feed step 718 in the system 500, 600 may be as shown below:










TABLE 17





Component
Setting







IC Inlet valve configuration
IC Media (e.g., valves 550, 650,



514, 614 open)


IC Inlet Rate for Pump 554, 654
0.1 mL/min


IC Circulation Rate for Pump 512, 612
 20 mL/min


EC Inlet valve configuration
None


EC Inlet Rate for Pump 578, 678
  0 mL/min


EC Circulation Rate for Pump 528, 628
 30 mL/min


Outlet valve configuration
IC Outlet (e.g., valve 590, 690



open)


Rocker Control
Stationary (at 0°)


Stop Condition
Manual









When it is determined to harvest the expanded cells, such as after the cells have reached confluence, after a defined period of time, according to user preference, etc., process 700 proceeds to release cells 720, in which the cells may be released from the membrane of the bioreactor 501, 601 and may be suspended in the IC loop 502, 602. Following the release of any adherent cells, harvest operation 722 transfers the cells in suspension from the IC circulation loop 502, 602, including any cells remaining in the bioreactor 501, 601, to a harvest bag 599, 699 or other container. Process 700 then terminates at END operation 724.


The releasing of cells 720 and harvesting of those cells 722 may be a five-step process, according to embodiments. An example of the solutions being introduced to the system 500, 600 during the release/harvest steps 720, 722 may be as shown below:











TABLE 18







Volume (estimation




based on factory


Bag (Connection Point)
Solution in Bag
default values)







Cell Inlet 562 (662)
None
N/A


Reagent 544 (644)
Trypsin
180 mL


IC Media 546 (646)
Media with Protein
 0.6 L


Wash 566 (666)
PBS
 1.4 L


EC Media 568 (668)
None
N/A









A first step in the releasing of cells 720 may perform an IC/EC Washout task in preparation for adding a reagent. For example, IC/EC media may be replaced with a phosphate buffered saline (PBS) to remove protein, calcium (Ca2+), and magnesium (Mg2+) in preparation for adding trypsin, or another chemical-releasing agent, to release any adherent cells. An example of the settings for an example first step of the release step 720 with the system 500, 600 may be as shown below:










TABLE 19





Component
Setting







IC Inlet valve configuration
Wash (e.g., valves 570, 670, 572,



672, 514, 614 open)


IC Inlet Rate for Pump 554, 654
 100 mL/min


IC Circulation Rate for Pump 512,
 −17 mL/min


612



EC Inlet valve configuration
Wash


EC Inlet Rate for Pump 578, 678
 148 mL/min


EC Circulation Rate for Pump 528,
−1.7 mL/min


628



Outlet valve configuration
IC Outlet (e.g., valve 590, 690



open) and EC outlet (e.g., valve



582, 692 open)


Rocker Control
In Motion (−90°, 180°, 1 second



interval)


Stop Condition
Exchange (2.5 IC volumes; 2.5 EC



volumes)









A second step of the releasing cell process 720 includes loading a reagent into the system 500, 600 until the reagent bag 544 is empty. An example of the settings for an example second step of the release step 720 with the system 500, 600 may be as shown below:










TABLE 20





Component
Setting







IC Inlet valve configuration
Reagent (e.g., valves 548, 648, 514,



614 open)


IC Inlet Rate for Pump 554, 654
 50 mL/min


IC Circulation Rate for Pump 512,
300 mL/min


612



EC Inlet valve configuration
None


EC Inlet Rate for Pump 578, 678
 0 mL/min


EC Circulation Rate for Pump 528,
 30 mL/min


628



Outlet valve configuration
EC outlet (e.g., valve 582, 692



open)


Rocker Control
In Motion (−90°, 180°, 1 second



interval)


Stop Condition
Empty Bag (Reagent Bag 544



empty)









A third step in the releasing cell process can chase the reagent into the IC loop 502, 602. An example of the settings for an example third step of the release step 720 with the system 500, 600 may be as shown below:










TABLE 21





Component
Setting







IC Inlet valve configuration
Wash (e.g., valves 570, 670, 572,



672, 514, 614 open)


IC Inlet Rate for Pump 554, 654
 50 mL/min


IC Circulation Rate for Pump 512,
300 mL/min


612



EC Inlet valve configuration
None


EC Inlet Rate for Pump 578, 678
 0 mL/min


EC Circulation Rate for Pump 528,
 30 mL/min


628



Outlet valve configuration
EC outlet (e.g., valve 582, 692



open)


Rocker Control
In Motion (−90°, 180°, 1 second



interval)


Stop Condition
IC Volume (22 mL)









A fourth step in the releasing cell process 720 can mix the reagent within the IC loop 502, 602. An example of the settings for an example fourth step of the release step 720 with the system 500, 600 may be as shown below:










TABLE 22





Component
Setting







IC Inlet valve configuration
None


IC Inlet Rate for Pump 554, 654
 0 mL/min


IC Circulation Rate for Pump 512,
300 mL/min


612



EC Inlet valve configuration
None


EC Inlet Rate for Pump 578, 678
 0 mL/min


EC Circulation Rate for Pump 528,
 30 mL/min


628



Outlet valve configuration
EC outlet (e.g., valve 582, 692



open)


Rocker Control
In Motion (−90°, 180°, 1 second



interval)


Stop Condition
Time (4 Minutes)









An example of the settings for an example fifth step, which may generally be a harvest step 722, with the system 500, 600 may be as shown below:










TABLE 23





Component
Setting







IC Inlet valve configuration
IC Media (e.g., valves 550, 650,



514, 614 open)


IC Inlet Rate for Pump 554, 654
400 mL/min


IC Circulation Rate for Pump 512,
−70 mL/min


612



EC Inlet valve configuration
IC Media (e.g., valves 550, 650,



572, 672 open)


EC Inlet Rate for Pump 578, 678
 60 mL/min


EC Circulation Rate for Pump 528,
 30 mL/min


628



Outlet valve configuration
Harvest (e.g., valve 598, 698 open)


Rocker Control
In Motion (−90°, 180°, 1 second



interval)


Stop Condition
IC Volume (378 mL)









As described above, following release step 720 and harvest step 722, process 700 terminates at END operation 724.


Turning to FIG. 8A, example operational steps 800 of a process for applying an agent or reagent to a cell growth surface that may be used with a cell expansion system, such as CES 500 (FIG. 5) or CES 600 (FIG. 6), are provided in accordance with embodiments of the present disclosure. START operation is initiated 802, and process 800 proceeds to load a reagent, or coating agent, 804 into a circulation loop, e.g., IC loop 502, 602, of a cell expansion system 500, 600. In an embodiment, such loading proceeds until a bag (e.g., 544) or container including the reagent or coating agent is empty. In another embodiment, such loading proceeds for a defined period of time or other condition as understood by a person of skill in the art. Example parameters 822 and 828 for such loading step 804 may be found in FIG. 8C, in which Table 821 provides example parameters or settings 828 for various steps 822, 824, and 826 of applying an agent to a cell growth surface in accordance with an embodiment of the present disclosure. Such example parameters or settings 828 include an example IC inlet of about 100 mL SDE CPPT, as an example coating solution. In an embodiment, CPPT may be prepared so as to create about 25 mL “single donor equivalent (SDE)” aliquots: (1) unprocessed CPPT may be obtained from a blood center; (2) CPPT may be diluted in PBS to a final volume of about 100 mL for every donor represented by the product (e.g.: 5 donors for CPPT product=about 500 mL of total solution); (3) this stock solution may be divided into about 25 mL aliquots. In an embodiment, each aliquot may be sufficient to coat one cell expansion system, e.g., Quantum System®, bioreactor, for example. Other volumes and/or proportions may be used in accordance with embodiments of the present disclosure.


In an embodiment, prior to loading such reagent or coating agent, an outlet or waste valve 590, 690 to one of the circulation loops, e.g., IC loop 502, 602, may be closed, while the outlet or waste valve 582, 692 to the other circulation loop, e.g., EC loop 504, 604, remains open. For example, the IC waste or outlet valve 590, 690 may be closed while the EC waste or outlet valve 582, 692 may be open, according to an embodiment. In another embodiment, such closing of an outlet or waste valve, e.g., IC waste or outlet valve 590, 690, while keeping another outlet or waste valve, e.g., EC waste or outlet valve 582, 692, open may occur after loading the reagent into the circulation loop 502, 602. In other embodiments, other types of fluid flow control device(s) to control fluid movement may be used as understood by a person of skill in the art.


Next, the reagent may be chased or washed 806 from an air removal chamber 556, 656 into the circulation loop, e.g., IC loop 502, 602. Example parameters 824 and 828 for such chase step 806 may be found in FIG. 8C.


The cell growth surface of the bioreactor 501, 601, e.g., cell growth surface of hollow fibers where a hollow fiber bioreactor is used, may then be coated 808 by controlling the fluid movement, e.g., ultrafiltration, in the bioreactor 501, 601. Example parameters 826 and 828 for such coating step 808 may be found in FIG. 8C. As shown in FIG. 8C, coating step 808 and example parameters 826, 828 may include a stop condition of about ten (10) minutes, according to an embodiment. Steps 822, 824, and 826 for applying an agent to a growth surface may be followed by an IC/EC Washout step, for example, and/or other steps, where it is desired to continue with a process for expanding cells in a cell expansion system 500, 600, according to an embodiment.


As described above, control of the fluid movement may use ultrafiltration, such as positive ultrafiltration, to move fluid from one side (the IC side 502, 602) of the bioreactor 501, 601 to the other side (the EC side 504, 604), according to embodiments. For example, where the IC outlet or waste valve 590, 690 may be closed, with the EC outlet or waste valve 582, 692 open, a fluid in the bioreactor 501, 601 may have no pathway but through the pores of the fibers (IC outlet valve 590 ,690 closed). In an embodiment, the IC inlet rate may be set to wash the IC side 502, 602 with media or a fluid, such as phosphate buffered saline (PBS), for example. Accordingly, the solution may flow through the pores of the fibers from the IC side 502, 602 to the EC side 504, 604. Such coating agent, e.g., CPPT, may be hydrostatically deposited onto the inner wall(s) of the bioreactor fiber for a defined time period. For example, such time period may be about ten (10) minutes, according to an embodiment. Such membrane ultrafiltration method allows adherence promoting proteins to be physisorbed on the bioreactor fibers as the coating solution flows through the pores of the fiber from the IC side to the EC side, for example.


As described above, the active promoting of the coating agent to a cell growth surface may significantly decrease the amount of time it may take to coat the growth surface as compared to other methods of coating a growth surface. In embodiments, such coating procedure using ultrafiltration may be referred to as an expedited coating procedure. Such expedited coating procedure using active moving of the coating agent to the cell growth surface(s) through ultrafiltration may use less time to coat the cell growth surface than procedures using passive coating procedures which may take overnight or about twelve (12) hours to about sixteen (16) hours to coat the bioreactor. For example, such expedited coating procedure may take less than or equal to about four (4) hours. In embodiments, such expedited coating procedure may take any time period in a range from above or equal to about five (5) minutes to less than or equal to about sixty (60) minutes, or any other range therein, depending on the procedure. For example, such coating procedure may take less than or equal to about ten (10) minutes, less than or equal to about twelve (12) minutes, less than or equal to about fifteen (15) minutes, less than or equal to about twenty (20) minutes, less than or equal to about thirty (30) minutes, less than or equal to about forty-five (45) minutes, less than or equal to about sixty (60) minutes, etc.


Following the application of the reagent or coating agent to the cell growth surface, process 800 then terminates at END operation 810.


While FIG. 8A illustrates a method for applying a coating agent or reagent to a cell growth surface, FIG. 8B depicts a schematic of applying an agent to a growth surface of a hollow fiber, in accordance with embodiments of the present disclosure. In embodiments, schematic 811 depicts the flow of a coating agent or reagent solution, such as cryoprecipitate solution 814, through a single fiber 812, e.g., hollow fiber, of a bioreactor during an active coating procedure. In schematic 811, a coating agent and/or coating solution, e.g., a cryoprecipitate solution, may be introduced to the fibers of a bioreactor, e.g., a hollow fiber bioreactor 501, 601, on the intracapillary (IC) side 816, for example. In such embodiment, an IC waste valve or IC outlet valve 590, 690 may be closed, while an EC waste valve or EC outlet valve 582, 692 may be open. In embodiments, the IC inlet rate for a chase step, e.g., step 824 (FIG. 8C), may be set. The IC inlet rate may then be set for a Wash step, e.g., step 826 (FIG. 8C), according to an embodiment. For example, the IC inlet rate may be set to about 50 mL/minute for a wash task with media or a fluid, such as phosphate buffered saline (PBS). In embodiments, the IC inlet rate may be set to any rate in a range including a value greater than or equal to about 5 mL/minute to less than or equal to about 100 mL/minute. For example, the IC inlet rate may be set to a value greater than or equal to about 40 mL/minute to less than or equal to about 60 mL/minute.


Returning to FIG. 8B, the coating agent in the coating solution, e.g., cryoprecipitate solution 814, may be hydrostatically deposited onto the inner wall of bioreactor fiber 812 for a specified time period, e.g., about ten (10) minutes. Various time periods may be used based on the CES 500, 600 configurations, for example. Such membrane ultrafiltration process allows adherence promoting protein(s) to be physisorbed on the bioreactor fibers as the reagent solution or coating solution flows through the pores 818 of the fiber 812 from the IC side of the fiber 816 to the EC side of the fiber 820.


Turning to FIG. 9A, example operational steps 900 of a process for applying an agent or reagent to a cell growth surface that may be used with a cell expansion system, such as CES 500 (FIG. 5) or CES 600 (FIG. 6), are provided in accordance with embodiments of the present disclosure. In embodiments, such CES is automated, and various steps and/or parameters may be pre-programmed, set, and/or created to execute one or more tasks to expand cells. START operation is initiated 902, and process 900 proceeds to close 904 a first outlet or waste valve 590, 690, and open (or leave/remain open) a second outlet or waste valve 582, 692, where the first 590, 690 and second 582, 682 outlet valves are different. In an embodiment, such as where cells may be grown on the IC side, for example, an IC outlet valve or IC waste valve 590, 690 may be closed, while an EC outlet valve or EC waste valve 582, 692 may be open or remain open. In another embodiment, such as where cells may be grown on the EC side, for example, an EC outlet valve or EC waste valve 582, 692 may be closed, while an IC outlet valve or IC waste valve 590, 690 may be open or remain opened. In an embodiment, step 904 occurs before loading a coating agent or reagent into the cell expansion system 500, 600. In another embodiment, step 904 occurs after the loading of a coating agent. In an embodiment, step 904 may occur at any time during process 900. Process 900 is offered for illustrative purposes and may be rearranged, combined into other steps, etc. Further, additional or fewer steps may be used in other embodiments.


Returning to FIG. 9, process 900 proceeds to load an agent 906 or agent solution, e.g., coating agent or coating solution, into a cell expansion system, such as cell expansion system 500, 600, for example. In an embodiment, a coating agent or coating agent solution is loaded into a circulation loop, e.g., IC loop 502, 602, of a cell expansion system 500, 600. In an embodiment, such loading proceeds until a bag (e.g., 544) or container including the reagent or coating agent is empty. In another embodiment, such loading proceeds for a defined period of time or other condition as understood by a person of skill in the art.


Next, the agent or reagent may be chased or washed 908 from an air removal chamber 556, 656 into the circulation loop, e.g., IC loop 502, 602. Process 900 next proceeds to set a first inlet rate 910, e.g., IC inlet rate, to wash a first side, e.g., IC side 816 (FIG. 8B), with media or a fluid, such as phosphate buffered saline (PBS), for example. For example, the IC inlet rate may be set to about 50 mL/minute for a wash task with media or a fluid, such as phosphate buffered saline (PBS). In embodiments, the IC inlet rate may be set to any rate in a range including a value greater than or equal to about 5 mL/minute to less than or equal to about 100 mL/minute. For example, the IC inlet rate may be set to a value greater than or equal to about 40 mL/minute to less than or equal to about 60 mL/minute. In embodiments, the IC inlet rate may be set to about 51 mL/minute; about 52 mL/minute; about 53 mL/minute; about 54 mL/minute; about 55 mL/minute; about 56 mL/minute; about 57 mL/minute; about 58 mL/minute; about 59 mL/minute; about 60 mL/minute; about 49 mL/minute; about 48 mL/minute; about 47 mL/minute; about 46 mL/minute; about 45 mL/minute; about 44 mL/minute; about 43 mL/minute; about 42 mL/minute; about 41 mL/minute; about 40 mL/minute; etc.


Such washing, or increased inlet rate, promotes the movement of fluid 912 from a first side 816 (FIG. 8B) of a hollow fiber 812 to a second side 820 of the hollow fiber 812, e.g., from the IC side 816 to the EC side 820, in which ultrafiltration allows proteins or molecules that are too large to pass through the pores 818 of a hollow fiber 812 to adhere to the bioreactor fiber 812 and thus coat the walls while the fluid in which the coating agent is suspended flows through the pores 818. Where the fluid flows through the pores 818 of the fiber 812 from the IC 816 to the EC side 820, positive ultrafiltration may result in the deposit of the coating agent or reagent on the inner walls, or IC side 816, of the fiber(s). On the other hand, in an embodiment where cells are grown on an EC side 820 and where the solution flows through the pores 818 of the fiber 812 from the EC side 820 to the IC side 816, negative ultrafiltration may result in the deposit of the coating agent or reagent on the outer walls, or EC side 820, of the fiber(s) 812. In an embodiment, such fluid movement may occur for a specified time period, e.g., about ten (10) minutes, to allow for such coating. In an embodiment, such active promoting of the coating agent to a cell growth surface may significantly decrease the amount of time it may take to coat the cell growth surface as compared to other methods of coating a cell growth surface. In embodiments, such coating procedure using ultrafiltration may be referred to as an expedited coating procedure. Such expedited coating procedure using active moving of the coating agent to the cell growth surface(s) through ultrafiltration may use less time to coat the cell growth surface than procedures using passive coating procedures which may take overnight or about twelve (12) hours to about sixteen (16) hours to coat the bioreactor. For example, such expedited coating procedure may take less than or equal to about four (4) hours. In embodiments, such expedited coating procedure may take any time period in a range from above or equal to about five (5) minutes to less than or equal to about sixty (60) minutes, or any other range therein, depending on the procedure. For example, such coating procedure may take less than or equal to about ten (10) minutes, less than or equal to about twelve (12) minutes, less than or equal to about fifteen (15) minutes, less than or equal to about twenty (20) minutes, less than or equal to about thirty (30) minutes, less than or equal to about forty-five (45) minutes, less than or equal to about sixty (60) minutes, etc. In other embodiments, other conditions may be used to determine when to stop or decrease the active promotion of the fluid. For example, such active promotion may be stopped or decreased when a media bag (e.g., 566) containing a wash solution is empty. Other conditions may be used according to embodiments. Process 900 then terminates at END operation 914.


Turning to FIG. 9B, example operational steps 916 of a process for applying an agent to a cell growth surface that may be used with a cell expansion system, such as CES 500 (FIG. 5) or CES 600 (FIG. 6), are provided in accordance with embodiments of the present disclosure. In embodiments, such CES is automated, and various steps and/or parameters may be pre-programmed, set, and/or created as custom or user-defined tasks to expand cells. START operation is initiated 918, and process 916 proceeds to close 920 a first outlet or waste valve 590, 690, and open (or leave/remain open) a second outlet or waste valve 582, 692, where the first 590, 690 and second 582, 692 outlet valves are different. In an embodiment, such as where cells may be grown on the IC side, for example, an IC outlet valve or IC waste valve 590, 690 may be closed, while an EC outlet valve or EC waste valve 582, 692 may be open or remain open. In another embodiment, such as where cells may be grown on the EC side, for example, an EC outlet valve or EC waste valve 582, 692 may be closed, while an IC outlet valve or IC waste valve 590, 690 may be open or remain opened. In an embodiment, step 920 occurs before loading a coating agent or reagent into the cell expansion system 500, 600. In another embodiment, step 920 occurs after the loading of a coating agent. In an embodiment, step 920 may occur at any time during process 916. Process 916 is offered for illustrative purposes and may be rearranged, combined into other steps, etc. Further, additional or fewer steps may be used in other embodiments.


Returning to FIG. 9B, process 916 proceeds to load an agent 922 or agent solution, e.g., coating agent or coating solution, into a cell expansion system, such as cell expansion system 500, 600, for example. In an embodiment, a coating agent or coating agent solution is loaded into a circulation loop, e.g., IC loop 502, 602, of a cell expansion system 500, 600. In an embodiment, such loading proceeds until a bag (e.g., 544) or container including the reagent or coating agent is empty. In another embodiment, such loading proceeds for a defined period of time or other condition as understood by a person of skill in the art.


Next, process 916 proceeds to optional step 924, in which the settings for a first wash may be set. During such first wash, the agent may be chased or washed from an air removal chamber 556, 656 into the circulation loop, e.g., IC loop 502, 602. The settings may include, for example, optionally setting a first inlet rate 926 and/or optionally setting a first stop condition 928. An example of a first stop condition may include a particular volume, e.g., an IC volume. Optional settings 926 and 928 are offered merely for illustrative purposes. Other settings and/or subsets of settings to control a first wash may be included. There may be fewer or more settings as represented by ellipsis 927. When settings for a first wash are set, process 916 next proceeds to optional first wash 930.


Following optional first wash 930 (or where no first wash is desired, following load agent 922), process 916 proceeds to set second wash settings 932. For example, a second inlet rate, e.g., IC inlet rate, may be set 934 to wash a first side, e.g., IC side 816 (FIG. 8B), with media or a fluid, such as phosphate buffered saline (PBS), for example. For example, the IC inlet rate may be set to about 50 mL/minute for a wash task with media or a fluid, such as phosphate buffered saline (PBS). In embodiments, the IC inlet rate may be set to any rate in a range including a value greater than or equal to about 5 mL/minute to less than or equal to about 100 mL/minute. For example, the IC inlet rate may be set to a value greater than or equal to about 40 mL/minute to less than or equal to about 60 mL/minute.


Additional or other settings may also be set to control such second wash. For example, a second stop condition may be set 936. Such stop condition may include a time period, or time interval, in which the second wash may be stopped when such stop condition is reached. As an example, a ten (10) minute time period may be set as a second stop condition for a second wash. Any time period may be used in accordance with embodiments of the present disclosure. Settings 934 and 936 are offered merely for illustrative purposes. Other settings and/or subsets of settings to control a second wash may be included. There may be fewer or more settings as represented by ellipsis 935.


Following the entering of the second wash settings at step 932, process 916 next proceeds to conducting a second wash 938. Such washing, or increased inlet rate, promotes the movement of fluid from a first side 816 (FIG. 8B) of a hollow fiber 812 to a second side 820 of the hollow fiber 812, e.g., from the IC side 816 to the EC side 820, in which ultrafiltration allows proteins or molecules that are too large to pass through the pores 818 of a hollow fiber 812 to adhere to the bioreactor fiber 812 and thus coat the walls while the solution flows through the pores 818. Where the solution flows through the pores 818 of the fiber 812 from the IC 816 to the EC side 820, positive ultrafiltration may result in the deposit of the coating agent or reagent on the inner walls, or IC side 816, of the fiber(s). On the other hand, in an embodiment where cells are grown on an EC side 820 and where the solution flows through the pores 818 of the fiber 812 from the EC side 820 to the IC side 816, negative ultrafiltration may result in the deposit of the coating agent or reagent on the outer walls, or EC side 820, of the fiber(s) 812.


Active promoting of the coating agent to a cell growth surface may significantly decrease the amount of time it may take to coat the growth surface as compared to other methods of coating a growth surface. In embodiments, such coating procedure using ultrafiltration may be referred to as an expedited coating procedure. For example, such expedited coating procedure may take less than or equal to about four (4) hours. In an embodiment, such fluid movement may occur for a specified time period, e.g., about ten (10) minutes, to allow for such coating. For example, such coating procedure may take any time period in a range from above or equal to about five (5) minutes to less than or equal to about sixty (60) minutes, or any other range therein, depending on the procedure. For example, such coating procedure may take less than or equal to about ten (10) minutes, less than or equal to about twelve (12) minutes, less than or equal to about fifteen (15) minutes, less than or equal to about twenty (20) minutes, less than or equal to about thirty (30) minutes, less than or equal to about forty-five (45) minutes, less than or equal to about sixty (60) minutes, etc. Any time period may be used in accordance with embodiments of the present disclosure. In an embodiment, such time period may be based on a stop condition, such as a second stop condition set in step 936. For example, a stop condition may be set where an automated CES is used to expand cells. In other embodiments, other conditions may be used to determine when to stop or decrease the active promotion of the fluid. For example, such active promotion may be stopped or decreased when a media bag (e.g., 566) containing the wash solution is empty. Other conditions may be used according to embodiments. Process 916 then terminates at END operation 940.


With respect to the processes illustrated in FIGS. 7-9, the operational steps depicted are offered for purposes of illustration and may be rearranged, combined into other steps, used in parallel with other steps, etc., according to embodiments of the present disclosure. Fewer or additional steps may be used in embodiments without departing from the spirit and scope of the present disclosure. Also, steps (and any sub-steps), such as priming, coating a bioreactor, loading cells, for example, may be performed automatically in some embodiments, such as by a processor executing custom and/or pre-programmed tasks stored in memory.


Examples and further description of tasks and protocols, including custom tasks and pre-programmed tasks, for use with a cell expansion system are provided in U.S. patent application Ser. No. 13/269,323 (“Configurable Methods and Systems of Growing and Harvesting Cells in a Hollow Fiber Bioreactor System,” filed Oct. 7, 2011) and U.S. patent application Ser. No. 13/269,351 (“Customizable Methods and Systems of Growing and Harvesting Cells in a Hollow Fiber Bioreactor System,” filed Oct. 7, 2011), which applications are hereby incorporated by reference herein in their entireties for all that they teach and for all purposes.


Next, FIG. 10 illustrates example components of a computing system 1000 upon which embodiments of the present disclosure may be implemented. Computing system 1000 may be used in embodiments, for example, where a cell expansion system uses a processor to execute tasks, such as custom tasks or pre-programmed tasks performed as part of a process, such as process 700, 800, 900, and/or 916 described above. In embodiments, pre-programmed tasks may include, “IC/EC Washout” task and/or “Feed Cells” task, for example.


The computing system 1000 may include a user interface 1002, a processing system 1004, and/or storage 1006. The user interface 1002 may include output device(s) 1008, and/or input device(s) 1010 as understood by a person of skill in the art. Output device(s) 1008 may include one or more touch screens, in which the touch screen may comprise a display area for providing one or more application windows. The touch screen may also be an input device 1010 that may receive and/or capture physical touch events from a user or operator, for example. The touch screen may comprise a liquid crystal display (LCD) having a capacitance structure that allows the processing system 1004 to deduce the location(s) of touch event(s), as understood by those of skill in the art. The processing system 1004 may then map the location of touch events to UI elements rendered in predetermined locations of an application window. The touch screen may also receive touch events through one or more other electronic structures, according to embodiments. Other output devices 1008 may include a printer, speaker, etc. Other input devices 1010 may include a keyboard, other touch input devices, mouse, voice input device, etc., as understood by a person of skill in the art.


Processing system 1004 may include a processing unit 1012 and/or a memory 1014, according to embodiments of the present disclosure. The processing unit 1012 may be a general purpose processor operable to execute instructions stored in memory 1014. Processing unit 1012 may include a single processor or multiple processors, according to embodiments. Further, in embodiments, each processor may be a multi-core processor having one or more cores to read and execute separate instructions. The processors may include general purpose processors, application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs), other integrated circuits, etc., as understood by a person of skill in the art.


The memory 1014 may include any short-term or long-term storage for data and/or processor executable instructions, according to embodiments. The memory 1014 may include, for example, Random Access Memory (RAM), Read-Only Memory (ROM), or Electrically Erasable Programmable Read-Only Memory (EEPROM), as understood by a person of skill in the art. Other storage media may include, for example, CD-ROM, tape, digital versatile disks (DVD) or other optical storage, tape, magnetic disk storage, magnetic tape, other magnetic storage devices, etc., as understood by a person of skill in the art.


Storage 1006 may be any long-term data storage device or component. Storage 1006 may include one or more of the systems described in conjunction with the memory 1014, according to embodiments. The storage 1006 may be permanent or removable. In embodiments, storage 1006 stores data generated or provided by the processing system 1004.


EXAMPLES

Results for some examples of protocols/methods/processes that may be used with a cell expansion system, such as CES 500 (FIG. 5) and/or CES 600 (FIG. 6), for example, that implement aspects of the embodiments may be as shown in FIGS. 11, 12A, 12B, 13A, and 13B. Although specific features may be described in the examples, such examples are provided merely for illustrative and descriptive purposes. For example, while examples may provide for the expansion of MSCs, other cell types may be used in other embodiments. The present embodiments are not limited to the examples provided herein.


It is noted that the example protocols/methods/processes are provided for illustrative purposes and are not intended to limit other embodiments, which may include different or additional steps, parameters, or other features. The example protocols/methods/processes, including the steps (and any sub-steps), may be performed automatically in some embodiments, such as by a processor executing custom tasks or pre-programmed tasks stored in memory. In other embodiments, the steps (and any sub-steps) may be performed through the combination of automated and manual execution of operations. In further embodiments, the steps (and any sub-steps) may be performed by an operator(s) or user(s) or through other manual means.


Some examples provide example data from embodiments providing for the expansion of cells using various coating procedures, various cell loading procedures, various coating materials (e.g., cryoprecipitate (CPPT), fibronectin (FN)), and/or combination(s) of such procedures and/or materials. Such procedures include, for example: positive ultrafiltration coating procedure; positive ultrafiltration coating procedure with a bulls-eye (BE) cell load procedure; positive ultrafiltration coating procedure with a load cells with uniform suspension (LWUS) cell loading procedure; overnight coating with cryoprecipitate; overnight coating with fibronectin; bulls-eye coating procedure; 28-minute bulls-eye coating procedure; etc. Examples and further description of a bulls-eye coating procedure(s) are provided in U.S. patent application Ser. No. 15/616,745, entitled, “Coating a Bioreactor,” filed on Jun. 7, 2017, which claims priority to U.S. Provisional Application Ser. No. 62/347,012, entitled “Coating a Bioreactor,” and filed on Jun. 7, 2016. These applications are hereby incorporated by reference herein in their entireties for all that they teach and for all purposes. As described above, examples and further description of a bulls-eye cell loading procedure(s) are provided in U.S. patent application Ser. No. 14/542,276 (U.S. Pat. No. 9,617,506), entitled, “Expanding Cells in a Bioreactor,” issued on Apr. 11, 2017, which is hereby incorporated by reference herein in its entirety for all that it teaches and for all purposes.


Example 1

Example results of expanding cells using a coating procedure(s) with, for example, the above methods 700, 800, 900, and/or 916 and/or with systems 500 (FIG. 5), 600 (FIG. 6), are shown in graph 1100 of FIG. 11, in accordance with embodiments of the present disclosure. For example, such cell growth surface coating and resulting cell expansion may use the Quantum® Cell Expansion System (the “Quantum® System”), manufactured by Terumo BCT, Inc. in Lakewood, Colorado. FIG. 11 illustrates example results for coating a cell growth surface through a coating procedure with ultrafiltration, e.g., about 10-minute positive ultrafiltration coating procedure (10 min+UF), versus an overnight circulating coating procedure. As shown in graph 1100 of FIG. 11, example results may be provided for using cryoprecipitate (CPPT) as a coating agent. In this example, two donors, e.g., Donor 1 and Donor 2, may be used to determine a cell harvest yield, e.g., MSC harvest yield, from the expansion of mesenchymal stem cells (MSCs) in a CES, e.g., Quantum® System. Donor 1 data includes both a Load Cells with Uniform Suspension cell loading procedure (LWUS) 1104, 1108 and a bulls-eye cell loading procedure (BullsEye Load) 1112, 1116. Donor 2 data includes results for using a load with uniform suspension cell loading procedure (LWUS) 1120, 1124, and 1128.


For Donor 1 and Donor 2, 5E+6 MSC may be loaded into a bioreactor, e.g., bioreactor 501, 601, preconditioned with cell culture media comprised of αMEM+GlutaMAX (Gibco CAT #32561102) and 10% FBS (Hyclone CAT #5H30070.03). Donor 1 MSC may be cultured for 6.8 days and Donor 2 MSC may be cultured for 6.9 days. For Donor 1, n=1 (where n=number of machines or CESs, e.g., Quantum® Systems) for both overnight-coated and 10-minute ultrafiltration coated bioreactors. For Donor 2, n=1 for the overnight-coated CES, e.g., Quantum® System, and n=2 for the two 10-minute ultrafiltration coated CESs, e.g., Quantum® Systems.


Harvest yields for both Donor 1 Quantum® System runs with load with uniform suspension cell loading procedures may both be observed to be 1.93E+8 MSC. For example, overnight coating with load with uniform suspension cell loading procedure (LWUS) may yield 1.93E+8 MSC 1104; and 10-minute ultrafiltration coating with load with uniform suspension cell loading procedure (LWUS) may yield 1.93E+8 MSC 1108. To confirm efficacy of the 10-minute coating technique with other cell load protocols, an additional comparison may be made between Quantum® Systems loaded using the bulls-eye cell loading procedure (BullsEye Load). The Donor 1 MSC yield for the overnight coated with bulls-eye cell loading may be observed to be 2.23E+8 MSC 1112, and MSC yield for the 10-minute ultrafiltration coat with bulls-eye cell loading procedure (BullsEye Load) may be observed to be 2.15E+8 MSC 1116. The Donor 2 MSC expansion may be observed to yield 1.91E+8 MSC 1120 for the overnight coated Quantum® System (n=1) with load with uniform suspension cell loading procedure (LWUS), and 2.05E+8 MSC 1124 and 1.93E+8 MSC 1128, respectively, for the two runs of 10-minute ultrafiltration coated Quantum® Systems (n=2) with load with uniform suspension cell loading procedure (LWUS).


In other examples, fibronectin (FN) may be used as a coating agent with similar methods and systems as described above. Example results when using fibronectin include: cell yields for 10-minute ultrafiltration FN coated Quantum® Systems may be observed to be in the range of 40% to 50% of overnight-coated harvests for a substantially same cell load.


Example 2

Example results of expanding cells by coating a cell growth surface of a cell expansion system, such as CES 500 (FIG. 5) and/or CES 600 (FIG. 6), for example, with various coating and cell loading procedures are illustrated in FIGS. 12A and 12B. For example, such cell growth surface coating and resulting cell expansion may use the Quantum® Cell Expansion System manufactured by Terumo BCT, Inc. in Lakewood, Colorado. FIGS. 12A and 12B illustrate example results of coating a cell growth surface through a coating procedure with ultrafiltration, e.g., about 10-minute ultrafiltration coating procedure (10 min UF), versus coating using an overnight circulating coating procedure or a bulls-eye coating procedure, e.g., a 28-minute modified bulls-eye coating procedure (28 min BE). For example, a 10-minute positive ultrafiltration coating procedure may be used. In such procedures, 5 million MSCs may be loaded into the system, and 25 mL of a cryoprecipitate solution may be used for coating the cell growth surface of a hollow fiber bioreactor. The 28-minute bulls-eye coating time period used to coat the hollow fiber(s), e.g., fiber(s) 812 (FIG. 8B), may be divided into seven (7) different time periods, each division being four (4) minutes long. During each 4-minute divisional time period, the circulation rate for the IC loop 502, 602 may be changed by adjusting the rate and/or direction of the circulation pump 512, 612. For example, the direction and/or circulation rate for the pump 512, 612 for each subsequent time division may be about −300 mL/min, 250 mL/min, −200 mL/min, 150 mL/min, −100 mL/min, 50 mL/min, and −25 mL/min. The results from using these coating procedures with cryoprecipitate (CPPT) may be as shown in FIGS. 12A and 12B.



FIGS. 12A and 12B illustrate example results of using CPPT to coat the cell growth surface of a plurality of hollow fibers using various coating and cell loading procedures, and combinations thereof. As shown in graph 1200 of FIG. 12A, the 28-minute bulls-eye coating procedure (28 min BE) with bulls-eye cell loading procedure (BullsEye) may outperform the following procedures: the 28-minute bulls-eye coating procedure (28 min BE) with load with uniform suspension cell loading procedure (LWUS); the overnight (o/n) coating procedure with load with uniform suspension cell loading procedure (LWUS); the overnight coating procedure with bulls-eye cell loading procedure (BullsEye); the 10-minute ultrafiltration coating procedure (10 min UF) with load with uniform suspension cell loading procedure (LWUS); and the 10-minute ultrafiltration coating procedure (10 min UF) with bulls-eye cell loading procedure (BullsEye).


As shown in graph 1200 of FIG. 12A, the 28-minute bulls-eye coating procedure (28 min BE) with bulls-eye cell loading procedure (BullsEye) may yield 2.33E+08 cells 1204 while the overnight coating procedure with bulls-eye cell loading procedure (BullsEye) may yield 2.23E+08 cells 1208. The overnight coating procedure with load with uniform suspension cell loading procedure (LWUS) may yield 1.93E+08 cells 1212, while the 28-minute bulls-eye coating procedure with load with uniform suspension cell loading procedure (LWUS) may yield 1.53E+08 cells 1216. A 10-minute ultrafiltration procedure (10 min UF) with bulls-eye cell loading procedure (BullsEye) may result in 2.15E+08 cells 1220, while a 10-minute ultrafiltration coating procedure (10 min UF) with load with uniform suspension cell loading procedure (LWUS) may yield 1.93E+08 cells 1224.


These example yields are compared in FIG. 12B. Graph 1226 of FIG. 12B illustrates a percentage difference versus control procedure using cryoprecipitate (CPPT) as a coating agent in various coating procedures and cell loading procedures, and combinations thereof. As shown in graph 1226 of FIG. 12B, compared to the overnight coating procedure with load with uniform suspension cell loading procedure (LWUS) 1228, the overnight coating procedure with bulls-eye cell loading procedure (BullsEye) may yield 16% 1232 more cells; the 28-minute bulls-eye coating procedure with load with uniform suspension cell loading procedure (LWUS) may yield 21% 1236 fewer cells; the 28-minute bulls-eye coating procedure (28 min BE) with bulls-eye cell loading procedure (BullsEye) may yield 21% 1240 more cells; the 10-minute ultrafiltration coating procedure (10 min UF) with load with uniform suspension cell loading procedure (LWUS) may yield substantially the same number 1244 of cells; and the 10-minute ultrafiltration coating procedure (10 min UF) with bulls-eye cell loading procedure (BullsEye) may yield 11% 1248 more cells.


Example 3

Example results of expanding cells by coating a cell growth surface of a cell expansion system, such as CES 500 (FIG. 5) and/or CES 600 (FIG. 6), for example, with various coating and cell loading procedures are illustrated in FIGS. 13A and 13B. For example, such cell growth surface coating and resulting cell expansion may use the Quantum® Cell Expansion System manufactured by Terumo BCT, Inc. in Lakewood, Colorado. FIGS. 13A and 13B illustrate example results of coating a cell growth surface through a coating procedure with ultrafiltration, e.g., about 10-minute ultrafiltration coating procedure (10 min UF), versus coating using an overnight circulating coating procedure or a bulls-eye coating procedure, e.g., a 28-minute modified bulls-eye coating procedure (28 min BE). For example, a 10-minute positive ultrafiltration coating procedure may be used. In such procedures, 5 million MSCs may be loaded into the system, and a 5 mg fibronectin (FN) solution may be used for coating the cell growth surface of a hollow fiber bioreactor. In an embodiment, such 5 mg FN solution may be circulated at 20 mL/minute. In the Quantum® System, such 5 mg FN solution may be circulated at 20 mL/minute in the 189 mL IC loop, according to an embodiment. The 28-minute bulls-eye coating time period used to coat the hollow fibers, e.g., fiber(s) 812 (FIG. 8B), may be divided into seven (7) different time periods, each division being four (4) minutes long. During each 4-minute divisional time period, the circulation rate for the IC loop 502, 602 may be changed by adjusting the rate and/or direction of the circulation pump 512, 612. For example, the direction and/or circulation rate for the pump 512, 612 for each subsequent time division may be about −300 mL/min, 250 mL/min, −200 mL/min, 150 mL/min, −100 mL/min, 50 mL/min, and −25 mL/min. The results from using these coating and cell loading procedures with fibronectin (FN) may be as shown in FIGS. 13A and 13B.



FIGS. 13A and 13B illustrate example results of using FN to coat the cell growth surface of a plurality of hollow fibers using various coating and cell loading procedures, and combinations thereof. As shown in graph 1300 of FIG. 13A, the overnight coating procedure with bulls-eye cell loading procedure (BullsEye) may outperform the following: the overnight coating procedure with load with uniform suspension cell loading procedure (LWUS); the 28-minute bulls-eye coating procedure (28 min BE) with load with uniform suspension cell loading procedure (LWUS); the 28-minute bulls-eye coating procedure (28 min BE) with bulls-eye cell loading procedure (BullsEye); the 10-minute ultrafiltration coating procedure (10 min UF) with load with uniform suspension cell loading procedure (LWUS); and the 10-minute ultrafiltration coating procedure (10 min UF) with bulls-eye cell loading procedure (BullsEye). As shown in graph 1300 of FIG. 13A, the 28-minute bulls-eye coating procedure (28 min BE) with bulls-eye cell loading procedure (BullsEye) may yield 1.29E+08 cells 1304, while the overnight coating procedure with bulls-eye cell loading procedure (BullsEye) may yield 2.30E+08 cells 1308. The overnight coating procedure with load with uniform suspension cell loading procedure (LWUS) may yield 1.91E+08 cells 1312, while the 28-minute bulls-eye coating procedure (28 min BE) with load with uniform suspension cell loading procedure (LWUS) may yield 9.57E+07 cells 1316. A 10-minute ultrafiltration coating procedure (10 min UF) with a bulls-eye cell loading procedure (BullsEye) may result in 7.34E+07 cells 1320, while a 10-minute ultrafiltration procedure (10 min UF) with load with uniform suspension cell loading procedure (LWUS) may yield 7.54E+07 cells 1324.


These example yields are compared in FIG. 13B. Graph 1326 of FIG. 13B illustrates a percentage difference versus control procedure using fibronectin (FN) as a coating agent in various coating procedures and cell loading procedures, and combinations thereof. As shown in graph 1326 of FIG. 13B, compared to the overnight coating procedure with load with uniform suspension cell loading procedure (LWUS) 1328, the overnight coating procedure with bulls-eye cell loading procedure (BullsEye) may yield 21% 1332 more cells; the 28-minute bulls-eye coating procedure with load with uniform suspension cell loading procedure (LWUS) may yield 50% 1336 fewer cells; the 28-minute bulls-eye coating procedure (28 min BE) with bulls-eye cell loading procedure (BullsEye) may yield 32% 1340 fewer cells; the 10-minute ultrafiltration coating procedure (10 min UF) with load with uniform suspension cell loading procedure (LWUS) may yield 60% 1344 fewer cells; and the 10-minute ultrafiltration coating procedure (10 min UF) with bulls-eye cell loading procedure (BullsEye) may yield 61% 1348 fewer cells.


Although specific features may be described in the examples, such examples are provided merely for illustrative and descriptive purposes. For example, while such examples may provide for the expansion of MSCs, other cell types may be used in other embodiments. It is noted that the example data are provided for illustrative purposes and are not intended to limit other embodiments, which may include different steps, parameters, materials, or other features. The present embodiments are not limited to the examples provided herein.


The embodiments of the disclosure may have one or more aspects, including, for example: a method of applying an agent to a cell growth surface in a cell expansion system, the method comprising: loading the agent into the cell expansion system; conducting a first wash to push the agent into a circulation loop; and conducting a second wash to cause the agent to coat the cell growth surface by ultrafiltration.


One or more of the above aspects, wherein the agent comprises cryoprecipitate.


One or more of the above aspects, wherein conducting the first wash further comprises: pushing the agent from an air removal chamber into the circulation loop.


One or more of the above aspects, wherein the circulation loop comprises an intracapillary loop.


One or more of the above aspects, wherein the cell expansion system comprises a hollow fiber bioreactor, and wherein the hollow fiber bioreactor comprises a plurality of hollow fibers.


One or more of the above aspects, wherein each of the plurality of hollow fibers comprises the cell growth surface.


One or more of the above aspects, wherein the agent coats the cell growth surface in about 60 minutes or less.


One or more of the above aspects, wherein the agent is in solution with a fluid, wherein, during the second wash, the fluid is actively moved from an intracapillary (IC) side of the hollow fiber bioreactor to an extracapillary (EC) side of the hollow fiber bioreactor by closing an IC outlet valve and opening an EC outlet valve, wherein the agent remains on at least a portion of the plurality of the hollow fibers while the fluid is pushed to the EC side from the IC side.


One or more of the above aspects, wherein the agent is hydrostatically deposited onto an inner wall of the IC side of each of the plurality of hollow fibers.


One or more of the above aspects, wherein the agent coats the cell growth surface in about 10 minutes or less.


The embodiments of the disclosure may have one or more aspects, also including, for example: a cell expansion system comprising: a bioreactor, wherein the bioreactor comprises a hollow fiber membrane; a first fluid flow path having at least opposing ends, wherein the first fluid flow path is fluidly associated with an intracapillary portion of the hollow fiber membrane; a processor; a memory, in communication with and readable by the processor, and containing a series of instructions that, when executed by the processor, cause the processor to: close a first outlet of the cell expansion system associated with the intracapillary portion of the hollow fiber membrane; load a coating solution into the cell expansion system, wherein the coating solution comprises a coating agent and a first fluid; and increase an inlet flow of a second fluid into the intracapillary portion of the hollow fiber membrane to push the first fluid through the intracapillary portion to the extracapillary portion of the hollow fiber membrane, wherein the coating agent coats a surface of the hollow fiber membrane.


One or more of the above aspects, wherein the memory further contains an instruction that, when executed by the processor, causes the processor to: open a second outlet of a second fluid path associated with the extracapillary portion of the hollow fiber membrane.


One or more of the above aspects, wherein the hollow fiber membrane comprises a cell growth surface, and wherein the coating agent coats the cell growth surface.


One or more of the above aspects, wherein the coating agent coats the cell growth surface through ultrafiltration.


One or more of the above aspects, wherein the coating occurs in less than about 60 minutes.


One or more of the above aspects, wherein the second fluid path is fluidly associated with an extracapillary circulation loop.


One or more of the above aspects, wherein the coating solution comprises cryoprecipitate and phosphate buffered saline.


One or more of the above aspects, wherein the memory further contains an instruction that, when executed by the processor, causes the processor to: set a stop condition for the inlet flow of the second fluid.


One or more of the above aspects, wherein the stop condition comprises a time period.


The embodiments of the disclosure may have one or more aspects, also including, for example: a method for rapidly coating a cell growth surface in a cell expansion system, the method comprising: priming the cell expansion system, wherein the cell expansion system comprises: a bioreactor, wherein the bioreactor comprises: a hollow fiber membrane having an intracapillary portion and an extracapillary portion, wherein the hollow fiber membrane comprises a plurality of hollow fibers, the plurality of hollow fibers comprising a cell growth surface; a first fluid flow path having a first inlet and a first outlet at at least opposing ends of the bioreactor, wherein the first fluid flow path is fluidly associated with the intracapillary portion of the hollow fiber membrane; a second fluid flow path having a second inlet and a second outlet, wherein the second fluid flow path is fluidly associated with the extracapillary portion of the hollow fiber membrane; a first connection port fluidly associated with the first fluid flow path; a first outlet valve fluidly associated with the first fluid flow path; a second outlet valve fluidly associated with the second fluid flow path; and a harvest bag; connecting a first bag containing a reagent for coating the cell growth surface of the plurality of hollow fibers; closing the first outlet valve; opening the second outlet valve; coating, through ultrafiltration, the cell growth surface with the reagent; connecting a second bag to the first connection port to introduce cells to the bioreactor; feeding the cells; connecting the harvest bag to the first fluid flow path to harvest the cells; and harvesting the cells into the harvest bag.


Embodiments further include one or more means for conducting the one or more above aspects.


Embodiments further include a system on chip, processor, application specific integrated circuit, field programmable gate array, or other control for executing the one or more above aspects.


While embodiments and examples have been illustrated and described, it is to be understood that the embodiments and examples are not limited to the precise configuration(s) and/or resource(s) described above. Various modifications, changes, and variations apparent to those skilled in the art may be made in the arrangement, operation, and details of the methods and systems of the present embodiments and examples disclosed herein without departing from the scope of the present claims.


As used herein, “at least one,” “one or more,” and “and/or” are open-ended expressions that are both conjunctive and disjunctive in operation. For example, each of the expressions “at least one of A, B and C,” “at least one of A, B, or C,” “one or more of A, B, and C,” “one or more of A, B, or C” and “A, B, and/or C” can mean A alone, B alone, C alone, A and B together, A and C together, B and C together, or A, B and C together.


It will be apparent to those skilled in the art that various modifications and variations may be made to the methods and structure of the present embodiments without departing from the scope of the claims. Thus, it should be understood that the embodiments are not to be limited to the specific examples given. Rather, the embodiments are intended to cover modifications and variations within the scope of the following claims and their equivalents.

Claims
  • 1. A method of applying an agent to a cell growth surface in a cell expansion system, the method comprising: loading the agent and a fluid into the cell expansion system;conducting a first wash at a first inlet flow rate to push the agent and the fluid into a circulation loop;closing an outlet to the circulation loop; andafter the closing, conducting a second wash at a second inlet flow rate higher than the first inlet flow rate to force a portion of the fluid through pores in a wall of the circulation loop and hydrostatically deposit the agent on the cell growth surface of the wall.
  • 2. The method of claim 1, wherein the agent comprises cryoprecipitate.
  • 3. The method of claim 1, wherein conducting the first wash further comprises: pushing the agent from an air removal chamber into the circulation loop.
  • 4. The method of claim 3, wherein the circulation loop comprises an intracapillary loop.
  • 5. The method of claim 4, wherein the cell expansion system comprises a hollow fiber bioreactor, and wherein the hollow fiber bioreactor comprises a plurality of hollow fibers.
  • 6. The method of claim 5, wherein each of the plurality of hollow fibers comprises the cell growth surface.
  • 7. The method of claim 5, wherein, during the second wash, the fluid is actively moved from an intracapillary (IC) side of the hollow fiber bioreactor to an extracapillary (EC) side of the hollow fiber bioreactor by closing an IC outlet valve and opening an EC outlet valve, and wherein the agent remains on at least a portion of the plurality of the hollow fibers while the fluid is pushed to the EC side from the IC side.
  • 8. The method of claim 7, wherein the agent is hydrostatically deposited onto an inner wall of the IC side of each of the plurality of hollow fibers.
  • 9. The method of claim 1, wherein the conducting the second wash is performed for a duration ranging from 5 minutes to 60 minutes.
  • 10. A method for rapidly coating a cell growth surface in a cell expansion system, the method comprising: priming the cell expansion system, wherein the cell expansion system comprises: a bioreactor, wherein the bioreactor comprises: a hollow fiber membrane having an intracapillary portion and an extracapillary portion, wherein the hollow fiber membrane comprises a plurality of hollow fibers, the plurality of hollow fibers comprising a cell growth surface;a first fluid flow path having a first inlet and a first outlet at at least opposing ends of the bioreactor, wherein the first fluid flow path is fluidly associated with the intracapillary portion of the hollow fiber membrane;a second fluid flow path having a second inlet and a second outlet, wherein the second fluid flow path is fluidly associated with the extracapillary portion of the hollow fiber membrane;a first connection port fluidly associated with the first fluid flow path;a first outlet valve fluidly associated with the first fluid flow path; a second outlet valve fluidly associated with the second fluid flow path; anda harvest bag;connecting a first bag containing a solution including a fluid and a reagent for coating the cell growth surface of the plurality of hollow fibers;closing the first outlet valve;opening the second outlet valve;flowing the solution into the first fluid flow path;conducting a first wash by flowing a second fluid into the first flow path at a first inlet flow rate;conducting a second wash by flowing the second fluid into the first flow path at a second inlet flow rate greater than the inlet first flow rate for a duration, thereby coating, through ultrafiltration, the cell growth surface with the reagent;connecting a second bag to the first connection port to introduce cells to the bioreactor; feeding the cells;connecting the harvest bag to the first fluid flow path to harvest the cells; andharvesting the cells into the harvest bag.
  • 11. The method of claim 7, wherein the fluid includes phosphate buffered saline.
  • 12. The method of claim 10, wherein the first fluid and the second fluid include phosphate buffered saline.
  • 13. The method of claim 10, wherein the reagent includes cryoprecipitate (CPPT), fibronectin (FN), or a combination of CPPT and FN.
  • 14. The method of claim 9, wherein the duration is 10 minutes or less.
  • 15. The method of claim 1, wherein the second inlet flow rate ranges from 40 mL/min to 60 mL/min.
CROSS-REFERENCE TO RELATED APPLICATION

This application is a divisional application of, and claims priority to, U.S. patent application Ser. No. 15/616,635, entitled, “Methods and Systems for Coating a Cell Growth Surface,” filed on Jun. 7, 2017, which claims priority to, and the benefit of, U.S. Provisional Application Ser. No. 62/347,025, filed on Jun. 7, 2016, and entitled, “Growth Surface Coating.” The disclosures of the above-identified applications are hereby incorporated by reference in their entireties as if set forth herein in full for all that they teach and for all purposes.

US Referenced Citations (1063)
Number Name Date Kind
2997077 Rodrigues Aug 1961 A
3013435 Rodrigues Dec 1961 A
3067915 Shapiro et al. Dec 1962 A
3191807 Rodrigues Jun 1965 A
3283727 Rodrigues Nov 1966 A
3701717 Ingvorsen Oct 1972 A
3821087 Knazek et al. Jun 1974 A
3896061 Tanzawa et al. Jul 1975 A
4173415 Wyatt Nov 1979 A
4301010 Eddleman et al. Nov 1981 A
4301118 Eddleman et al. Nov 1981 A
4391912 Yoshida et al. Jul 1983 A
4412990 Lundblad et al. Nov 1983 A
4418691 Yannas et al. Dec 1983 A
4439322 Sonoda et al. Mar 1984 A
4439901 Eddleman Apr 1984 A
4478829 Landaburu et al. Oct 1984 A
4486188 Altshuler et al. Dec 1984 A
4509695 Bessman Apr 1985 A
4585654 Landaburu et al. Apr 1986 A
4618586 Walker et al. Oct 1986 A
4629686 Gruenberg Dec 1986 A
4647539 Bach Mar 1987 A
4650766 Harm et al. Mar 1987 A
4670544 Schwinn et al. Jun 1987 A
4705918 Harmon Nov 1987 A
4722902 Harm et al. Feb 1988 A
4727059 Binder et al. Feb 1988 A
4804628 Cracauer et al. Feb 1989 A
4828706 Eddleman May 1989 A
4885087 Kopf Dec 1989 A
4889812 Guinn et al. Dec 1989 A
4894342 Guinn et al. Jan 1990 A
4897358 Carrasco Jan 1990 A
4918019 Guinn Apr 1990 A
4940541 Aoyagi Jul 1990 A
4960521 Keller Oct 1990 A
4973558 Wilson et al. Nov 1990 A
4988623 Schwarz et al. Jan 1991 A
5015585 Robinson May 1991 A
5019054 Clement et al. May 1991 A
5079168 Amiot Jan 1992 A
5126238 Gebhard et al. Jun 1992 A
5130141 Law et al. Jul 1992 A
5149544 Gentile et al. Sep 1992 A
5162225 Sager et al. Nov 1992 A
5169930 Ruoslahti et al. Dec 1992 A
5192553 Boyse et al. Mar 1993 A
5197985 Caplan et al. Mar 1993 A
5202254 Amiot Apr 1993 A
5225346 Matsumiya et al. Jul 1993 A
5226914 Caplan et al. Jul 1993 A
5240614 Ofsthun et al. Aug 1993 A
5240861 Bieri Aug 1993 A
5283058 Faustman Feb 1994 A
5310676 Johansson et al. May 1994 A
5324428 Flaherty Jun 1994 A
5330915 Wilson et al. Jul 1994 A
5342752 Platz et al. Aug 1994 A
5399493 Emerson et al. Mar 1995 A
5416022 Amiot May 1995 A
5422197 Zito Jun 1995 A
5436151 McGlave et al. Jul 1995 A
5437994 Emerson et al. Aug 1995 A
5439757 Zito Aug 1995 A
5459069 Palsson et al. Oct 1995 A
5460964 McGlave et al. Oct 1995 A
H1509 Eran et al. Dec 1995 H
5478739 Slivka et al. Dec 1995 A
5486359 Caplan et al. Jan 1996 A
5496659 Zito Mar 1996 A
5507949 Ho Apr 1996 A
5510257 Sirkar et al. Apr 1996 A
5512180 Ho Apr 1996 A
5527467 Ofsthun et al. Jun 1996 A
5541105 Melink et al. Jul 1996 A
5543316 Zawadzka et al. Aug 1996 A
5545492 Zito Aug 1996 A
5549674 Humes et al. Aug 1996 A
5571720 Grandics et al. Nov 1996 A
5591625 Gerson et al. Jan 1997 A
5593580 Kopf Jan 1997 A
5595909 Hu et al. Jan 1997 A
5599703 Davis et al. Feb 1997 A
5605822 Emerson et al. Feb 1997 A
5605829 McGlave et al. Feb 1997 A
5605835 Hu et al. Feb 1997 A
5622857 Goffe Apr 1997 A
5626731 Cooley et al. May 1997 A
5627070 Gruenberg May 1997 A
5631006 Melink et al. May 1997 A
5635386 Palsson et al. Jun 1997 A
5635387 Fei et al. Jun 1997 A
5643736 Bruder et al. Jul 1997 A
5643794 Liu et al. Jul 1997 A
5646043 Emerson et al. Jul 1997 A
5654186 Cerami et al. Aug 1997 A
5656421 Gebhard et al. Aug 1997 A
5658995 Kohn et al. Aug 1997 A
5667985 O'Leary et al. Sep 1997 A
5670147 Emerson et al. Sep 1997 A
5670351 Emerson et al. Sep 1997 A
5674750 Kraus et al. Oct 1997 A
5684712 Goffe et al. Nov 1997 A
5686289 Humes et al. Nov 1997 A
5688687 Palsson et al. Nov 1997 A
5695989 Kalamasz Dec 1997 A
5700289 Breitbart et al. Dec 1997 A
5705534 D'Agostino et al. Jan 1998 A
5707859 Miller et al. Jan 1998 A
5712163 Parenteau et al. Jan 1998 A
5728581 Schwartz et al. Mar 1998 A
5733541 Taichman et al. Mar 1998 A
5733542 Haynesworth et al. Mar 1998 A
5736396 Bruder et al. Apr 1998 A
5744347 Wagner et al. Apr 1998 A
5750651 Oppermann et al. May 1998 A
5753506 Johe May 1998 A
5763194 Slowiaczek et al. Jun 1998 A
5763197 Tsukamoto et al. Jun 1998 A
5763261 Gruenberg Jun 1998 A
5763266 Palsson et al. Jun 1998 A
5766944 Ruiz Jun 1998 A
5772994 Ildstad et al. Jun 1998 A
5783075 Eddleman et al. Jul 1998 A
5783216 Faustman Jul 1998 A
5785912 Cooley et al. Jul 1998 A
5804446 Cerami et al. Sep 1998 A
5806529 Reisner et al. Sep 1998 A
5807686 Wagner et al. Sep 1998 A
5811094 Caplan et al. Sep 1998 A
5811397 Francavilla et al. Sep 1998 A
5817773 Wilson et al. Oct 1998 A
5821218 Toback et al. Oct 1998 A
5827735 Young et al. Oct 1998 A
5827740 Pittenger Oct 1998 A
5830921 Cooley et al. Nov 1998 A
5833979 Schinstine et al. Nov 1998 A
5837258 Grotendorst Nov 1998 A
5837539 Caplan et al. Nov 1998 A
5840502 Van Vlasselaer Nov 1998 A
5840576 Schinstine et al. Nov 1998 A
5840580 Terstappen et al. Nov 1998 A
5842477 Naughton et al. Dec 1998 A
5843633 Yin et al. Dec 1998 A
5846796 Cerami et al. Dec 1998 A
5853247 Shroyer Dec 1998 A
5853717 Schinstine et al. Dec 1998 A
5855608 Brekke et al. Jan 1999 A
5855613 Antanavich et al. Jan 1999 A
5855619 Caplan et al. Jan 1999 A
5858747 Schinstine et al. Jan 1999 A
5858782 Long et al. Jan 1999 A
5861315 Nakahata Jan 1999 A
5866115 Kanz et al. Feb 1999 A
5866420 Talbot et al. Feb 1999 A
5868930 Kopf Feb 1999 A
5882295 Kope Mar 1999 A
5882918 Goffe Mar 1999 A
5882929 Fofonoff et al. Mar 1999 A
5888807 Palsson et al. Mar 1999 A
5902741 Purchio et al. May 1999 A
5906827 Khouri et al. May 1999 A
5906934 Grande et al. May 1999 A
5908782 Marshak et al. Jun 1999 A
5908784 Johnstone et al. Jun 1999 A
5912177 Turner et al. Jun 1999 A
5914108 Tsukamoto et al. Jun 1999 A
5922597 Verfaillie et al. Jul 1999 A
5922847 Broudy et al. Jul 1999 A
5925567 Kraus et al. Jul 1999 A
5928945 Seliktar et al. Jul 1999 A
5935849 Schinstine et al. Aug 1999 A
5938929 Shimagaki et al. Aug 1999 A
5939323 Valentini et al. Aug 1999 A
5942225 Bruder et al. Aug 1999 A
5955353 Amiot Sep 1999 A
5958763 Goffe Sep 1999 A
5965436 Thiede et al. Oct 1999 A
5972703 Long et al. Oct 1999 A
5980795 Klotzer et al. Nov 1999 A
5981211 Hu et al. Nov 1999 A
5981708 Lawman et al. Nov 1999 A
5985653 Armstrong et al. Nov 1999 A
5994129 Armstrong et al. Nov 1999 A
5998184 Shi Dec 1999 A
6001585 Gramer Dec 1999 A
6001643 Spaulding Dec 1999 A
6001647 Peck et al. Dec 1999 A
6004743 Kenyon et al. Dec 1999 A
6010696 Caplan et al. Jan 2000 A
6015554 Galy Jan 2000 A
6022540 Bruder et al. Feb 2000 A
6022742 Kopf Feb 2000 A
6022743 Naughton et al. Feb 2000 A
6027743 Khouri et al. Feb 2000 A
6030836 Thiede et al. Feb 2000 A
6040180 Johe Mar 2000 A
6045818 Cima et al. Apr 2000 A
6048721 Armstrong et al. Apr 2000 A
6048727 Kopf Apr 2000 A
6049026 Muschler Apr 2000 A
6054121 Cerami et al. Apr 2000 A
6060270 Humes May 2000 A
6066317 Yang et al. May 2000 A
6071691 Hoekstra et al. Jun 2000 A
6074366 Rogers et al. Jun 2000 A
6082364 Balian et al. Jul 2000 A
6083747 Wong et al. Jul 2000 A
6086643 Clark et al. Jul 2000 A
6087113 Caplan et al. Jul 2000 A
6096532 Armstrong et al. Aug 2000 A
6096537 Chappel Aug 2000 A
6103117 Shimagaki et al. Aug 2000 A
6103522 Torok-Storb et al. Aug 2000 A
6110176 Shapira Aug 2000 A
6110482 Khouri et al. Aug 2000 A
6114307 Jaspers et al. Sep 2000 A
6117985 Thomas et al. Sep 2000 A
6120491 Kohn et al. Sep 2000 A
6127141 Kopf Oct 2000 A
6129911 Faris Oct 2000 A
6143293 Weiss et al. Nov 2000 A
6146360 Rogers et al. Nov 2000 A
6146888 Smith et al. Nov 2000 A
6149902 Artavanis-Tsakonas et al. Nov 2000 A
6149906 Mosca Nov 2000 A
6150164 Humes Nov 2000 A
6152964 Van Blitterswijk et al. Nov 2000 A
6162643 Wille, Jr. Dec 2000 A
6165225 Antanavich et al. Dec 2000 A
6165785 Ogle et al. Dec 2000 A
6174333 Kadiyala et al. Jan 2001 B1
6174526 Cerami et al. Jan 2001 B1
6174666 Pavlakis et al. Jan 2001 B1
6179871 Halpern Jan 2001 B1
6197325 MacPhee et al. Mar 2001 B1
6197575 Griffith et al. Mar 2001 B1
6200606 Peterson et al. Mar 2001 B1
6214369 Grande et al. Apr 2001 B1
6214574 Kopf Apr 2001 B1
6224860 Brown May 2001 B1
6225119 Qasba et al. May 2001 B1
6225368 D'Agostino et al. May 2001 B1
6228117 De Bruijn et al. May 2001 B1
6228607 Kersten et al. May 2001 B1
6228635 Armstrong et al. May 2001 B1
6238908 Armstrong et al. May 2001 B1
6239157 Mbalaviele May 2001 B1
6242252 Reid et al. Jun 2001 B1
6248319 Zsebo et al. Jun 2001 B1
6248587 Rodgers et al. Jun 2001 B1
6255112 Thiede et al. Jul 2001 B1
6258597 Bachovchin et al. Jul 2001 B1
6258778 Rodgers et al. Jul 2001 B1
6261549 Fernandez et al. Jul 2001 B1
6280718 Kaufman et al. Aug 2001 B1
6280724 Moore Aug 2001 B1
6281012 McIntosh et al. Aug 2001 B1
6281195 Rueger et al. Aug 2001 B1
6287864 Bagnis et al. Sep 2001 B1
6291249 Mahant et al. Sep 2001 B1
6297213 Oppermann et al. Oct 2001 B1
6299650 Van Blitterswijk et al. Oct 2001 B1
6306424 Vyakarnam et al. Oct 2001 B1
6306575 Thomas et al. Oct 2001 B1
6322784 Pittenger et al. Nov 2001 B1
6322786 Anderson Nov 2001 B1
6326198 Emerson et al. Dec 2001 B1
6326201 Fung et al. Dec 2001 B1
6328765 Hardwick et al. Dec 2001 B1
6328960 McIntosh et al. Dec 2001 B1
6333029 Vyakarnam et al. Dec 2001 B1
6335195 Rodgers et al. Jan 2002 B1
6338942 Kraus et al. Jan 2002 B2
6340592 Stringer Jan 2002 B1
6342370 Connolly et al. Jan 2002 B1
6372495 Flendrig Jan 2002 B1
6355239 Bruder et al. Mar 2002 B1
6358252 Shapira Mar 2002 B1
6361997 Huss Mar 2002 B1
6365149 Vyakarnam et al. Apr 2002 B2
6368636 McIntosh et al. Apr 2002 B1
6372210 Brown Apr 2002 B2
6372244 Antanavich et al. Apr 2002 B1
6372494 Naughton et al. Apr 2002 B1
6372892 Ballinger et al. Apr 2002 B1
6376742 Zdrahala et al. Apr 2002 B1
6379953 Bruder et al. Apr 2002 B1
6387367 Davis-Sproul et al. May 2002 B1
6387369 Pittenger et al. May 2002 B1
6387693 Rieser et al. May 2002 B2
6387964 D'Agostino et al. May 2002 B1
6392118 Hammang et al. May 2002 B1
6394812 Sullivan et al. May 2002 B1
6399580 Elias et al. Jun 2002 B1
6410320 Humes Jun 2002 B1
6414219 Denhardt et al. Jul 2002 B1
6416496 Rogers et al. Jul 2002 B1
6417205 Cooke et al. Jul 2002 B1
6419829 Ho et al. Jul 2002 B2
6420138 Gentz et al. Jul 2002 B1
6423681 Barasch et al. Jul 2002 B1
6426332 Rueger et al. Jul 2002 B1
6428802 Atala Aug 2002 B1
6429012 Kraus et al. Aug 2002 B1
6429013 Halvorsen et al. Aug 2002 B1
6432653 Okarma Aug 2002 B1
6432711 Dinsmore et al. Aug 2002 B1
6440407 Bauer et al. Aug 2002 B1
6440734 Pykett et al. Aug 2002 B1
6451562 Ruben et al. Sep 2002 B1
6454811 Sherwood et al. Sep 2002 B1
6455678 Yin et al. Sep 2002 B1
6458585 Vachula et al. Oct 2002 B1
6458589 Rambhatla et al. Oct 2002 B1
6461495 Morrissey et al. Oct 2002 B1
6461853 Zhu Oct 2002 B1
6464983 Grotendorst Oct 2002 B1
6465205 Hicks, Jr. Oct 2002 B2
6465247 Weissman et al. Oct 2002 B1
6465249 Reya et al. Oct 2002 B2
6468794 Uchida et al. Oct 2002 B1
6472200 Mitrani Oct 2002 B1
6475481 Talmadge Nov 2002 B2
6479064 Atala Nov 2002 B1
6482231 Abatangelo et al. Nov 2002 B1
6482411 Ahuja et al. Nov 2002 B1
6482645 Atala Nov 2002 B2
6482926 Thomas et al. Nov 2002 B1
6488925 Ruben et al. Dec 2002 B2
6491918 Thomas et al. Dec 2002 B1
6495129 Li et al. Dec 2002 B1
6495364 Hammang et al. Dec 2002 B2
6497875 Sorrell et al. Dec 2002 B1
6498034 Strobl Dec 2002 B1
6506574 Rambhatla et al. Jan 2003 B1
6511510 de Bruijn et al. Jan 2003 B1
6511767 Calver et al. Jan 2003 B1
6511958 Atkinson et al. Jan 2003 B1
6514514 Atkinson et al. Feb 2003 B1
6524452 Clark et al. Feb 2003 B1
6528052 Smith et al. Mar 2003 B1
6528245 Sanchez-Ramos et al. Mar 2003 B2
6531445 Cohen et al. Mar 2003 B1
6534084 Vyakarnam et al. Mar 2003 B1
6537807 Smith et al. Mar 2003 B1
6541024 Kadiyala et al. Apr 2003 B1
6541249 Wager et al. Apr 2003 B2
6544506 Reisner Apr 2003 B2
6548734 Glimcher et al. Apr 2003 B1
6555324 Olweus et al. Apr 2003 B1
6555374 Gimble et al. Apr 2003 B1
6559119 Burgess et al. May 2003 B1
6562616 Toner et al. May 2003 B1
6565843 Cohen et al. May 2003 B1
6566126 Cadwell May 2003 B2
6569421 Hodges May 2003 B2
6569427 Boyse et al. May 2003 B1
6569428 Isner et al. May 2003 B1
6569654 Shastri et al. May 2003 B2
6576188 Rose et al. Jun 2003 B1
6576428 Assenmacher et al. Jun 2003 B1
6576464 Gold et al. Jun 2003 B2
6576465 Long Jun 2003 B1
6582471 Bittmann et al. Jun 2003 B1
6582955 Martinez et al. Jun 2003 B2
6586192 Peschle et al. Jul 2003 B1
6589728 Csete et al. Jul 2003 B2
6589786 Mangano et al. Jul 2003 B1
6596274 Abatangelo et al. Jul 2003 B1
6599300 Vibe-Hansen et al. Jul 2003 B2
6599520 Scarborough et al. Jul 2003 B2
6610535 Lu et al. Aug 2003 B1
6613798 Porter et al. Sep 2003 B1
6616912 Eddleman et al. Sep 2003 B2
6617070 Morrissey et al. Sep 2003 B1
6617152 Bryhan et al. Sep 2003 B2
6617159 Cancedda et al. Sep 2003 B1
6623749 Williams et al. Sep 2003 B2
6623942 Ruben et al. Sep 2003 B2
6624108 Clark et al. Sep 2003 B1
6626950 Brown et al. Sep 2003 B2
6627191 Bartelmez et al. Sep 2003 B1
6632425 Li et al. Oct 2003 B1
6632620 Makarovskiy Oct 2003 B1
6632934 Moreadith et al. Oct 2003 B1
6638765 Rosenberg Oct 2003 B1
6642019 Anderson et al. Nov 2003 B1
6642048 Xu et al. Nov 2003 B2
6642049 Chute et al. Nov 2003 B1
6642201 Khavinson et al. Nov 2003 B1
6645489 Pykett et al. Nov 2003 B2
6645727 Thomas et al. Nov 2003 B2
6645763 Kobayashi et al. Nov 2003 B2
6649189 Talmadge et al. Nov 2003 B2
6649595 Clackson et al. Nov 2003 B2
6649631 Orme et al. Nov 2003 B1
6653105 Triglia et al. Nov 2003 B2
6653134 Prockop et al. Nov 2003 B2
6660523 Blom et al. Dec 2003 B2
6662805 Frondoza et al. Dec 2003 B2
6667034 Palsson et al. Dec 2003 B2
6667176 Funk et al. Dec 2003 B1
6670169 Schob et al. Dec 2003 B1
6670175 Wang et al. Dec 2003 B2
6673603 Baetge et al. Jan 2004 B2
6673606 Tennekoon et al. Jan 2004 B1
6677306 Veis et al. Jan 2004 B1
6680166 Mullon et al. Jan 2004 B1
6683192 Baxter et al. Jan 2004 B2
6685936 McIntosh et al. Feb 2004 B2
6685971 Xu Feb 2004 B2
6686198 Melton et al. Feb 2004 B1
6696575 Schmidt et al. Feb 2004 B2
6699716 Sullivan et al. Mar 2004 B2
6703017 Peck et al. Mar 2004 B1
6703209 Baetscher et al. Mar 2004 B1
6706293 Quintanilla Almagro et al. Mar 2004 B1
6709864 Pittenger et al. Mar 2004 B1
6712850 Vyakarnam et al. Mar 2004 B2
6719969 Hogaboam et al. Apr 2004 B1
6719970 Costantino et al. Apr 2004 B1
6720340 Cooke et al. Apr 2004 B1
6730314 Jeschke et al. May 2004 B2
6730315 Usala et al. May 2004 B2
6730510 Roos et al. May 2004 B2
6733746 Daley et al. May 2004 B2
6734000 Chin et al. May 2004 B2
6740493 Long et al. May 2004 B1
6759039 Tsang et al. Jul 2004 B2
6759245 Toner et al. Jul 2004 B1
6761883 Weissman et al. Jul 2004 B2
6761887 Kavalkovich et al. Jul 2004 B1
6767699 Polo et al. Jul 2004 B2
6767737 Wilson et al. Jul 2004 B1
6767738 Gage et al. Jul 2004 B1
6767740 Sramek et al. Jul 2004 B2
6770478 Crowe et al. Aug 2004 B2
6777227 Ricci et al. Aug 2004 B2
6777231 Katz et al. Aug 2004 B1
6780612 Ford et al. Aug 2004 B1
6787355 Miller et al. Sep 2004 B1
6790455 Chu et al. Sep 2004 B2
6793939 Badylak Sep 2004 B2
6797269 Mosca et al. Sep 2004 B2
6797514 Berenson et al. Sep 2004 B2
6800480 Bodnar et al. Oct 2004 B1
6802971 Gorsuch et al. Oct 2004 B2
6805860 Alt Oct 2004 B1
6809117 Enikolopov et al. Oct 2004 B2
6811773 Gentz et al. Nov 2004 B1
6811776 Kale et al. Nov 2004 B2
6814961 Jensen et al. Nov 2004 B1
6821513 Fleming Nov 2004 B1
6821790 Mahant et al. Nov 2004 B2
6828145 Avital et al. Dec 2004 B2
6833269 Carpenter Dec 2004 B2
6835377 Goldberg et al. Dec 2004 B2
6835566 Smith et al. Dec 2004 B2
6838284 de Bruijn et al. Jan 2005 B2
6841150 Halvorsen et al. Jan 2005 B2
6841151 Stringer Jan 2005 B2
6841294 Morrissey et al. Jan 2005 B1
6841355 Livant Jan 2005 B2
6841386 Kraus et al. Jan 2005 B2
6841542 Bartelmez et al. Jan 2005 B2
6844011 Faustman Jan 2005 B1
6844187 Weschler et al. Jan 2005 B1
6849051 Sramek et al. Feb 2005 B2
6849255 Gazit et al. Feb 2005 B2
6849454 Kelly et al. Feb 2005 B2
6849662 Enikolopov et al. Feb 2005 B2
6852308 Kohn et al. Feb 2005 B2
6852321 Colucci et al. Feb 2005 B2
6852533 Rafii et al. Feb 2005 B1
6855242 Comninellis et al. Feb 2005 B1
6855542 DiMilla et al. Feb 2005 B2
6863900 Kadiyala et al. Mar 2005 B2
6866843 Habener et al. Mar 2005 B2
6872389 Faris Mar 2005 B1
6875430 McIntosh et al. Apr 2005 B2
6887600 Morrissey et al. May 2005 B2
6887704 Peled et al. May 2005 B2
6908763 Akashi et al. Jun 2005 B1
6911201 Merchav et al. Jun 2005 B1
6914279 Lu et al. Jul 2005 B2
6939955 Rameshwar Sep 2005 B2
6943008 Ma Sep 2005 B1
6965018 Mikesell et al. Nov 2005 B2
6969308 Doi et al. Nov 2005 B2
6979308 McDonald et al. Dec 2005 B1
6979321 Geis et al. Dec 2005 B2
6988004 Kanno et al. Jan 2006 B2
7008394 Geise et al. Mar 2006 B2
7015037 Furcht et al. Mar 2006 B1
7029666 Bruder et al. Apr 2006 B2
7033339 Lynn Apr 2006 B1
7033823 Chang Apr 2006 B2
7041493 Rao May 2006 B2
7045098 Stephens May 2006 B2
7052517 Murphy et al. May 2006 B2
7056493 Kohn et al. Jun 2006 B2
7112441 Uemura et al. Sep 2006 B2
7118672 Husain et al. Oct 2006 B2
7122178 Simmons et al. Oct 2006 B1
7160719 Nyberg Jan 2007 B2
7169295 Husain et al. Jan 2007 B2
7172696 Martinez et al. Feb 2007 B1
7175763 Husain et al. Feb 2007 B2
7192776 Stephens Mar 2007 B2
7195711 Gorsuch et al. Mar 2007 B2
7250154 Kohn et al. Jul 2007 B2
7270996 Cannon et al. Sep 2007 B2
7271234 Kohn et al. Sep 2007 B2
7294259 Cote et al. Nov 2007 B2
7300571 Cote et al. Nov 2007 B2
7303676 Husain et al. Dec 2007 B2
7303677 Cote et al. Dec 2007 B2
7341062 Chachques et al. Mar 2008 B2
7358001 Morrissey et al. Apr 2008 B2
7361493 Hammond et al. Apr 2008 B1
7368169 Kohn et al. May 2008 B2
7378271 Bader May 2008 B2
7399872 Webster et al. Jul 2008 B2
7416884 Gemmiti et al. Aug 2008 B2
7425440 Malinge et al. Sep 2008 B2
7435586 Bartlett et al. Oct 2008 B2
7438902 Habener et al. Oct 2008 B2
7439057 Frangos et al. Oct 2008 B2
7452529 Brown, Jr. et al. Nov 2008 B2
7491388 McIntosh et al. Feb 2009 B1
7494811 Wolfinbarger, Jr. et al. Feb 2009 B2
7514074 Pittenger et al. Apr 2009 B2
7514075 Hedrick et al. Apr 2009 B2
7524676 Reiter et al. Apr 2009 B2
7531351 Marx et al. May 2009 B2
7534601 Wikswo et al. May 2009 B2
7534609 Merchav et al. May 2009 B2
7572374 Gorsuch et al. Aug 2009 B2
7579179 Bryhan et al. Aug 2009 B2
7585412 Gorsuch et al. Sep 2009 B2
7588938 Ma Sep 2009 B2
7598075 Smith et al. Oct 2009 B2
7608447 Cohen et al. Oct 2009 B2
7659118 Furcht et al. Feb 2010 B2
7678573 Merchav et al. Mar 2010 B2
7682822 Noll et al. Mar 2010 B2
7682823 Runyon Mar 2010 B1
7718430 Antwiler May 2010 B2
7722896 Kohn et al. May 2010 B2
D620732 Andrews Aug 2010 S
7838122 Kohn et al. Nov 2010 B2
7838289 Furcht et al. Nov 2010 B2
7892829 Pittenger et al. Feb 2011 B2
7919307 Klaus et al. Apr 2011 B2
7927587 Blazer et al. Apr 2011 B2
7989851 Lu et al. Aug 2011 B2
8008528 Kohn et al. Aug 2011 B2
8034365 Baluca Oct 2011 B2
8075881 Verfaillie et al. Dec 2011 B2
8147824 Maziarz et al. Apr 2012 B2
8147863 Kohn et al. Apr 2012 B2
8158120 Pittenger et al. Apr 2012 B2
8158121 Pittenger et al. Apr 2012 B2
8252280 Verfaillie et al. Aug 2012 B1
8252887 Bolikal et al. Aug 2012 B2
8288159 Warren et al. Oct 2012 B2
8288590 Kohn et al. Oct 2012 B2
8298823 Warren et al. Oct 2012 B2
8309347 Antwiler Nov 2012 B2
8361453 Uhrich et al. Jan 2013 B2
8377683 Lu et al. Feb 2013 B2
8383397 Wojciechowski et al. Feb 2013 B2
8383806 Rameshwar Feb 2013 B2
8399245 Leuthaeuser et al. Mar 2013 B2
8415449 Kohn et al. Apr 2013 B2
8435781 Kodama May 2013 B2
8461289 Kohn et al. Jun 2013 B2
8476399 Bolikal et al. Jul 2013 B2
8486621 Luo et al. Jul 2013 B2
8486695 Danilkovitch et al. Jul 2013 B2
8492140 Smith et al. Jul 2013 B2
8492150 Parker et al. Jul 2013 B2
8524496 Meiron et al. Sep 2013 B2
8529888 Meiron et al. Sep 2013 B2
8540499 Page et al. Sep 2013 B2
8551511 Brandom et al. Oct 2013 B2
8580249 Blazar et al. Nov 2013 B2
8678638 Wong Mar 2014 B2
8785181 Antwiler Jul 2014 B2
8852570 Pittenger et al. Oct 2014 B2
8852571 Pittenger et al. Oct 2014 B2
8852572 Pittenger et al. Oct 2014 B2
8852573 Pittenger et al. Oct 2014 B2
8852574 Pittenger et al. Oct 2014 B2
8852575 Pittenger et al. Oct 2014 B2
8895291 DiLorenzo et al. Nov 2014 B2
9057045 Gibbons et al. Jun 2015 B2
9109193 Galliher et al. Aug 2015 B2
9175259 Nankervis Nov 2015 B2
9220810 Ma et al. Dec 2015 B2
9441195 Wojciechowski et al. Sep 2016 B2
9534198 Page et al. Jan 2017 B2
9732313 Hirschel et al. Aug 2017 B2
10093956 Hirschel et al. Oct 2018 B2
10494421 Castillo Dec 2019 B2
10577575 Frank Mar 2020 B2
20010017188 Cooley et al. Aug 2001 A1
20010020086 Hubbell et al. Sep 2001 A1
20010021516 Wei et al. Sep 2001 A1
20010029046 Beaulieu Oct 2001 A1
20010033834 Wilkison et al. Oct 2001 A1
20010036663 Kraus et al. Nov 2001 A1
20010041687 Mruk Nov 2001 A1
20010044413 Pierce et al. Nov 2001 A1
20010049139 Lagasse et al. Dec 2001 A1
20020015724 Yang et al. Feb 2002 A1
20020018804 Austin et al. Feb 2002 A1
20020028510 Sanberg et al. Mar 2002 A1
20020031757 Ohgushi et al. Mar 2002 A1
20020037278 Ueno et al. Mar 2002 A1
20020045260 Hung et al. Apr 2002 A1
20020064869 Ebner et al. May 2002 A1
20020076400 Katz et al. Jun 2002 A1
20020077687 Ahn Jun 2002 A1
20020082698 Parenteau et al. Jun 2002 A1
20020116054 Lundell et al. Aug 2002 A1
20020128581 Vishnoi et al. Sep 2002 A1
20020128582 Farrell et al. Sep 2002 A1
20020128583 Min et al. Sep 2002 A1
20020128584 Brown et al. Sep 2002 A1
20020130100 Smith Sep 2002 A1
20020132343 Lum Sep 2002 A1
20020139743 Critz et al. Oct 2002 A1
20020142457 Umezawa et al. Oct 2002 A1
20020146678 Benvenisty Oct 2002 A1
20020146817 Cannon et al. Oct 2002 A1
20020150989 Greene et al. Oct 2002 A1
20020151056 Sasai et al. Oct 2002 A1
20020159981 Peled et al. Oct 2002 A1
20020160032 Long et al. Oct 2002 A1
20020160510 Hariri Oct 2002 A1
20020168765 Prockop et al. Nov 2002 A1
20020169408 Beretta et al. Nov 2002 A1
20020182241 Borenstein et al. Dec 2002 A1
20020182664 Dolecek et al. Dec 2002 A1
20020188962 Denhardt et al. Dec 2002 A1
20020197240 Chiu Dec 2002 A1
20030021850 Xu Jan 2003 A1
20030022390 Stephens Jan 2003 A1
20030027330 Lanza et al. Feb 2003 A1
20030027331 Yan et al. Feb 2003 A1
20030032143 Neff et al. Feb 2003 A1
20030036168 Ni et al. Feb 2003 A1
20030040113 Mizuno et al. Feb 2003 A1
20030049236 Kassem et al. Mar 2003 A1
20030054331 Fraser et al. Mar 2003 A1
20030059851 Smith Mar 2003 A1
20030059939 Page et al. Mar 2003 A1
20030078345 Morrisey Apr 2003 A1
20030082795 Shuler et al. May 2003 A1
20030086915 Rader et al. May 2003 A1
20030089471 Gehr et al. May 2003 A1
20030092101 Ni et al. May 2003 A1
20030101465 Lawman et al. May 2003 A1
20030103957 McKerracher Jun 2003 A1
20030104568 Lee Jun 2003 A1
20030113813 Heidaran et al. Jun 2003 A1
20030113910 Levanduski Jun 2003 A1
20030124091 Tuse et al. Jul 2003 A1
20030124721 Cheatham et al. Jul 2003 A1
20030130593 Gonzalez Jul 2003 A1
20030133918 Sherley Jul 2003 A1
20030138950 McAllister et al. Jul 2003 A1
20030143727 Chang Jul 2003 A1
20030148152 Morrisey Aug 2003 A1
20030149011 Ackerman et al. Aug 2003 A1
20030152558 Luft et al. Aug 2003 A1
20030157078 Hall et al. Aug 2003 A1
20030157709 DiMilla et al. Aug 2003 A1
20030161817 Young et al. Aug 2003 A1
20030166272 Abuljadayel Sep 2003 A1
20030170214 Bader Sep 2003 A1
20030180296 Salcedo et al. Sep 2003 A1
20030185817 Thomas et al. Oct 2003 A1
20030202938 Rameshwar Oct 2003 A1
20030203483 Seshi Oct 2003 A1
20030204323 Morrisey Oct 2003 A1
20030211602 Atala Nov 2003 A1
20030211603 Earp et al. Nov 2003 A1
20030216718 Hamblin et al. Nov 2003 A1
20030219898 Sugaya et al. Nov 2003 A1
20030223968 Yang Dec 2003 A1
20030224420 Hellerstein et al. Dec 2003 A1
20030224510 Yamaguchi et al. Dec 2003 A1
20030225010 Rameshwar Dec 2003 A1
20030232432 Bhat Dec 2003 A1
20030232752 Freeman et al. Dec 2003 A1
20030235909 Hariri et al. Dec 2003 A1
20040009158 Sands et al. Jan 2004 A1
20040009589 Levenberg et al. Jan 2004 A1
20040010231 Leonhardt et al. Jan 2004 A1
20040014209 Lassar et al. Jan 2004 A1
20040018174 Palasis Jan 2004 A1
20040018617 Hwang Jan 2004 A1
20040023324 Sakano et al. Feb 2004 A1
20040023370 Yu et al. Feb 2004 A1
20040027914 Vrane Feb 2004 A1
20040033214 Young et al. Feb 2004 A1
20040033599 Rosenberg Feb 2004 A1
20040037811 Penn et al. Feb 2004 A1
20040037815 Clarke et al. Feb 2004 A1
20040038316 Kaiser et al. Feb 2004 A1
20040053869 Andrews et al. Mar 2004 A1
20040062753 Rezania et al. Apr 2004 A1
20040063205 Xu Apr 2004 A1
20040067585 Wang et al. Apr 2004 A1
20040071668 Bays et al. Apr 2004 A1
20040072259 Scadden et al. Apr 2004 A1
20040077079 Storgaard et al. Apr 2004 A1
20040079248 Mayer et al. Apr 2004 A1
20040087016 Keating et al. May 2004 A1
20040091936 West May 2004 A1
20040096476 Uhrich et al. May 2004 A1
20040097408 Leder et al. May 2004 A1
20040101959 Marko et al. May 2004 A1
20040107453 Furcht et al. Jun 2004 A1
20040110286 Bhatia Jun 2004 A1
20040115804 Fu et al. Jun 2004 A1
20040115806 Fu Jun 2004 A1
20040120932 Zahner Jun 2004 A1
20040121461 Honmou et al. Jun 2004 A1
20040121464 Rathjen et al. Jun 2004 A1
20040126405 Sahatjian et al. Jul 2004 A1
20040128077 Koebler et al. Jul 2004 A1
20040131601 Epstein et al. Jul 2004 A1
20040132184 Dennis et al. Jul 2004 A1
20040136967 Weiss et al. Jul 2004 A1
20040137612 Baksh Jul 2004 A1
20040137613 Vacanti et al. Jul 2004 A1
20040143174 Brubaker Jul 2004 A1
20040143863 Li et al. Jul 2004 A1
20040151700 Harlan et al. Aug 2004 A1
20040151701 Kim et al. Aug 2004 A1
20040151706 Shakhov et al. Aug 2004 A1
20040151729 Michalopoulos et al. Aug 2004 A1
20040152190 Sumita Aug 2004 A1
20040161419 Strom et al. Aug 2004 A1
20040171533 Zehentner et al. Sep 2004 A1
20040180347 Stanton et al. Sep 2004 A1
20040191902 Hambor et al. Sep 2004 A1
20040197310 Sanberg et al. Oct 2004 A1
20040197375 Rezania et al. Oct 2004 A1
20040208786 Kevy et al. Oct 2004 A1
20040214275 Soejima et al. Oct 2004 A1
20040219134 Naughton et al. Nov 2004 A1
20040219136 Hariri Nov 2004 A1
20040219563 West et al. Nov 2004 A1
20040224403 Bhatia Nov 2004 A1
20040229351 Rodriguez et al. Nov 2004 A1
20040234972 Owens et al. Nov 2004 A1
20040235158 Bartlett et al. Nov 2004 A1
20040235160 Nishikawa et al. Nov 2004 A1
20040235166 Prockop et al. Nov 2004 A1
20040242469 Lee et al. Dec 2004 A1
20040258669 Dzau et al. Dec 2004 A1
20040259242 Malinge et al. Dec 2004 A1
20040259254 Honmou et al. Dec 2004 A1
20040260058 Scheek et al. Dec 2004 A1
20040260318 Hunter et al. Dec 2004 A1
20040265996 Schwarz et al. Dec 2004 A1
20050002914 Rosen et al. Jan 2005 A1
20050003460 Nilsson et al. Jan 2005 A1
20050003527 Lang et al. Jan 2005 A1
20050003534 Huberman et al. Jan 2005 A1
20050008624 Peled et al. Jan 2005 A1
20050008626 Fraser et al. Jan 2005 A1
20050009178 Yost et al. Jan 2005 A1
20050009179 Gemmiti et al. Jan 2005 A1
20050009181 Black et al. Jan 2005 A1
20050013804 Kato et al. Jan 2005 A1
20050014252 Chu et al. Jan 2005 A1
20050014253 Ehmann et al. Jan 2005 A1
20050014254 Kruse Jan 2005 A1
20050014255 Tang et al. Jan 2005 A1
20050019801 Rubin et al. Jan 2005 A1
20050019908 Hariri Jan 2005 A1
20050019910 Takagi et al. Jan 2005 A1
20050019911 Gronthos et al. Jan 2005 A1
20050026836 Dack et al. Feb 2005 A1
20050031587 Tsutsui et al. Feb 2005 A1
20050031595 Peled et al. Feb 2005 A1
20050031598 Levenberg et al. Feb 2005 A1
20050032122 Hwang et al. Feb 2005 A1
20050032207 Wobus et al. Feb 2005 A1
20050032209 Messina et al. Feb 2005 A1
20050032218 Gerlach Feb 2005 A1
20050036980 Chaney et al. Feb 2005 A1
20050037488 Mitalipova et al. Feb 2005 A1
20050037490 Rosenberg et al. Feb 2005 A1
20050037492 Xu et al. Feb 2005 A1
20050037493 Mandalam et al. Feb 2005 A1
20050037949 O'Brien et al. Feb 2005 A1
20050106119 Brandom et al. May 2005 A1
20050106127 Kraus et al. May 2005 A1
20050112447 Fletcher et al. May 2005 A1
20050112762 Hart et al. May 2005 A1
20050118712 Tsai et al. Jun 2005 A1
20050130297 Sarem et al. Jun 2005 A1
20050136093 Denk Jun 2005 A1
20050137517 Blickhan et al. Jun 2005 A1
20050142162 Hunter et al. Jun 2005 A1
20050149157 Hunter et al. Jul 2005 A1
20050152946 Hunter et al. Jul 2005 A1
20050158289 Simmons et al. Jul 2005 A1
20050172340 Logvinov et al. Aug 2005 A1
20050175665 Hunter et al. Aug 2005 A1
20050175703 Hunter et al. Aug 2005 A1
20050178395 Hunter et al. Aug 2005 A1
20050178396 Hunter et al. Aug 2005 A1
20050180957 Scharp et al. Aug 2005 A1
20050181502 Furcht et al. Aug 2005 A1
20050182463 Hunter et al. Aug 2005 A1
20050183731 Hunter et al. Aug 2005 A1
20050186244 Hunter et al. Aug 2005 A1
20050186671 Cannon et al. Aug 2005 A1
20050187140 Hunter et al. Aug 2005 A1
20050196421 Hunter et al. Sep 2005 A1
20050208095 Hunter et al. Sep 2005 A1
20050244963 Teplyashin Nov 2005 A1
20050249731 Aslan et al. Nov 2005 A1
20050255118 Wehner Nov 2005 A1
20050261674 Nobis et al. Nov 2005 A1
20050277577 Hunter et al. Dec 2005 A1
20050281790 Simmons et al. Dec 2005 A1
20050282733 Prins et al. Dec 2005 A1
20050283844 Furcht et al. Dec 2005 A1
20060002900 Binder et al. Jan 2006 A1
20060008452 Simmons et al. Jan 2006 A1
20060019388 Hutmacher et al. Jan 2006 A1
20060019389 Yayon et al. Jan 2006 A1
20060054941 Lu et al. Mar 2006 A1
20060083720 Fraser et al. Apr 2006 A1
20060099198 Thomson et al. May 2006 A1
20060166364 Senesac Jul 2006 A1
20060172008 Yayon et al. Aug 2006 A1
20060193840 Gronthos et al. Aug 2006 A1
20060228798 Verfaillie et al. Oct 2006 A1
20060233834 Guehenneux et al. Oct 2006 A1
20060239909 Anderson et al. Oct 2006 A1
20060258586 Sheppard et al. Nov 2006 A1
20060258933 Ellis et al. Nov 2006 A1
20060259998 Brumbley et al. Nov 2006 A1
20060280748 Buckheit Dec 2006 A1
20060286077 Gronthos et al. Dec 2006 A1
20070005148 Barofsky et al. Jan 2007 A1
20070011752 Paleyanda Jan 2007 A1
20070042462 Hildinger Feb 2007 A1
20070065938 Gronthos et al. Mar 2007 A1
20070105222 Wolfinbarger et al. May 2007 A1
20070116612 Williamson May 2007 A1
20070117180 Morikawa et al. May 2007 A1
20070122904 Nordon May 2007 A1
20070123996 Sugaya et al. May 2007 A1
20070160583 Lange et al. Jul 2007 A1
20070166834 Williamson et al. Jul 2007 A1
20070178071 Westenfelder Aug 2007 A1
20070196421 Hunter et al. Aug 2007 A1
20070197957 Hunter et al. Aug 2007 A1
20070198063 Hunter et al. Aug 2007 A1
20070202485 Nees et al. Aug 2007 A1
20070203330 Kretschmar et al. Aug 2007 A1
20070208134 Hunter et al. Sep 2007 A1
20070231305 Noll et al. Oct 2007 A1
20070238169 Abilez et al. Oct 2007 A1
20070258943 Penn et al. Nov 2007 A1
20070274970 Gordon et al. Nov 2007 A1
20070275457 Granchelli et al. Nov 2007 A1
20070295651 Martinez et al. Dec 2007 A1
20070298015 Beer et al. Dec 2007 A1
20070298497 Antwiler Dec 2007 A1
20080003663 Bryhan et al. Jan 2008 A1
20080009458 Dornan et al. Jan 2008 A1
20080032398 Cannon et al. Feb 2008 A1
20080050770 Zhang et al. Feb 2008 A1
20080063600 Aguzzi et al. Mar 2008 A1
20080064649 Rameshwar Mar 2008 A1
20080069807 Jy et al. Mar 2008 A1
20080095676 Andretta Apr 2008 A1
20080095690 Liu Apr 2008 A1
20080103412 Chin May 2008 A1
20080110827 Cote et al. May 2008 A1
20080113426 Smith et al. May 2008 A1
20080113440 Gurney et al. May 2008 A1
20080153077 Henry Jun 2008 A1
20080160597 van der Heiden et al. Jul 2008 A1
20080166808 Nyberg Jul 2008 A1
20080181879 Catelas et al. Jul 2008 A1
20080190857 Beretta et al. Aug 2008 A1
20080194017 Esser et al. Aug 2008 A1
20080206831 Coffey et al. Aug 2008 A1
20080220522 Antwiler Sep 2008 A1
20080220523 Antwiler Sep 2008 A1
20080220524 Noll et al. Sep 2008 A1
20080220526 Ellison et al. Sep 2008 A1
20080221443 Ritchie et al. Sep 2008 A1
20080227189 Bader Sep 2008 A1
20080227190 Antwiler Sep 2008 A1
20080248572 Antwiler Oct 2008 A1
20080254533 Antwiler Oct 2008 A1
20080268165 Fekety et al. Oct 2008 A1
20080306095 Crawford Dec 2008 A1
20090004738 Merchav et al. Jan 2009 A1
20090011399 Fischer Jan 2009 A1
20090047289 Denhardt et al. Feb 2009 A1
20090074728 Gronthos et al. Mar 2009 A1
20090075881 Catelas et al. Mar 2009 A1
20090076481 Stegmann et al. Mar 2009 A1
20090081770 Srienc et al. Mar 2009 A1
20090081797 Fadeev et al. Mar 2009 A1
20090092608 Ni et al. Apr 2009 A1
20090098103 Madison et al. Apr 2009 A1
20090098645 Fang et al. Apr 2009 A1
20090100944 Newby Apr 2009 A1
20090104163 Deans et al. Apr 2009 A1
20090104692 Bartfeld et al. Apr 2009 A1
20090104699 Newby et al. Apr 2009 A1
20090118161 Cruz May 2009 A1
20090181087 Kraus et al. Jul 2009 A1
20090183581 Wilkinson et al. Jul 2009 A1
20090191627 Fadeev et al. Jul 2009 A1
20090191632 Fadeev et al. Jul 2009 A1
20090191634 Martin et al. Jul 2009 A1
20090203065 Gehman et al. Aug 2009 A1
20090203129 Furcht et al. Aug 2009 A1
20090203130 Furcht et al. Aug 2009 A1
20090214382 Burgess et al. Aug 2009 A1
20090214481 Muhs et al. Aug 2009 A1
20090214652 Hunter et al. Aug 2009 A1
20090215022 Page et al. Aug 2009 A1
20090227024 Baker et al. Sep 2009 A1
20090227027 Baker et al. Sep 2009 A1
20090233334 Hildinger et al. Sep 2009 A1
20090233353 Furcht et al. Sep 2009 A1
20090233354 Furcht et al. Sep 2009 A1
20090258379 Klein et al. Oct 2009 A1
20090269841 Wojciechowski et al. Oct 2009 A1
20090270725 Leimbach et al. Oct 2009 A1
20090280153 Hunter et al. Nov 2009 A1
20090280565 Jolicoeur et al. Nov 2009 A1
20090291890 Madison et al. Nov 2009 A1
20100009409 Hubbell et al. Jan 2010 A1
20100021954 Deshayes et al. Jan 2010 A1
20100021990 Edwards et al. Jan 2010 A1
20100028311 Motlagh et al. Feb 2010 A1
20100042260 Antwiler Feb 2010 A1
20100075410 Desai et al. Mar 2010 A1
20100086481 Baird et al. Apr 2010 A1
20100092536 Hunter et al. Apr 2010 A1
20100093607 Dickneite Apr 2010 A1
20100105138 Dodd et al. Apr 2010 A1
20100111910 Rakoczy May 2010 A1
20100129376 Denhardt et al. May 2010 A1
20100129912 Su et al. May 2010 A1
20100136091 Moghe et al. Jun 2010 A1
20100144037 Antwiler Jun 2010 A1
20100144634 Zheng et al. Jun 2010 A1
20100183561 Sakthivel et al. Jul 2010 A1
20100183585 Van Zant et al. Jul 2010 A1
20100203020 Ghosh Aug 2010 A1
20100230203 Karayianni Sep 2010 A1
20100248366 Fadeev et al. Sep 2010 A1
20100278933 Sayeski et al. Nov 2010 A1
20100285453 Goodrich Nov 2010 A1
20100285590 Verfaillie et al. Nov 2010 A1
20100291180 Uhrich Nov 2010 A1
20100291181 Uhrich et al. Nov 2010 A1
20100297234 Sugino et al. Nov 2010 A1
20100304427 Faris et al. Dec 2010 A1
20100304482 Deshayes et al. Dec 2010 A1
20100310524 Bechor et al. Dec 2010 A1
20100316446 Runyon Dec 2010 A1
20110085746 Wong et al. Apr 2011 A1
20110111498 Oh et al. May 2011 A1
20110129447 Meretzki et al. Jun 2011 A1
20110129486 Meiron Jun 2011 A1
20110143433 Oh et al. Jun 2011 A1
20110159584 Gibbons et al. Jun 2011 A1
20110171182 Abelman Jul 2011 A1
20110171659 Furcht et al. Jul 2011 A1
20110177595 Furcht et al. Jul 2011 A1
20110212493 Hirschel et al. Sep 2011 A1
20110256108 Meiron et al. Oct 2011 A1
20110256160 Meiron et al. Oct 2011 A1
20110293583 Aberman Dec 2011 A1
20120028352 Oh et al. Feb 2012 A1
20120051976 Lu et al. Mar 2012 A1
20120058554 Deshayes et al. Mar 2012 A1
20120064047 Verfaillie et al. Mar 2012 A1
20120064583 Edwards et al. Mar 2012 A1
20120086657 Stanton, IV et al. Apr 2012 A1
20120118919 Cianciolo May 2012 A1
20120122220 Merchav et al. May 2012 A1
20120135043 Maziarz et al. May 2012 A1
20120145580 Paruit et al. Jun 2012 A1
20120156779 Anneren et al. Jun 2012 A1
20120178885 Kohn et al. Jul 2012 A1
20120189713 Kohn et al. Jul 2012 A1
20120208039 Barbaroux et al. Aug 2012 A1
20120219531 Oh et al. Aug 2012 A1
20120219737 Sugino et al. Aug 2012 A1
20120226013 Kohn et al. Sep 2012 A1
20120231519 Bushman et al. Sep 2012 A1
20120237557 Lewitus et al. Sep 2012 A1
20120295352 Antwiler Nov 2012 A1
20120308531 Pinxteren et al. Dec 2012 A1
20120315696 Luitjens et al. Dec 2012 A1
20130004465 Aberman Jan 2013 A1
20130039892 Aberman Feb 2013 A1
20130058907 Wojciechowski et al. Mar 2013 A1
20130059383 Dijkhuizen Borgart et al. Mar 2013 A1
20130101561 Sabaawy Apr 2013 A1
20130143313 Niazi Jun 2013 A1
20130157353 Dijkhuizen Borgart et al. Jun 2013 A1
20130259843 Duda et al. Oct 2013 A1
20130319575 Mendyk Dec 2013 A1
20130323213 Meiron et al. Dec 2013 A1
20130337558 Meiron et al. Dec 2013 A1
20140004553 Parker et al. Jan 2014 A1
20140017209 Aberman et al. Jan 2014 A1
20140030805 Kasuto et al. Jan 2014 A1
20140051162 Nankervis Feb 2014 A1
20140051167 Nankervis et al. Feb 2014 A1
20140112893 Tom et al. Apr 2014 A1
20140186937 Smith et al. Jul 2014 A1
20140193895 Smith et al. Jul 2014 A1
20140193911 Newby et al. Jul 2014 A1
20140242039 Meiron et al. Aug 2014 A1
20140248244 Danilkovitch et al. Sep 2014 A1
20140315300 Oh et al. Oct 2014 A1
20140342448 Nagels Nov 2014 A1
20150004693 Danilkovitch et al. Jan 2015 A1
20150104431 Pittenger et al. Apr 2015 A1
20150111252 Hirschel et al. Apr 2015 A1
20150125138 Karnieli et al. May 2015 A1
20150140653 Jones May 2015 A1
20150175950 Hirschel et al. Jun 2015 A1
20150225685 Hirschel et al. Aug 2015 A1
20150247122 Tom et al. Sep 2015 A1
20150259749 Santos et al. Sep 2015 A1
20150275170 Nankervis Oct 2015 A1
20160090569 Vang Mar 2016 A1
20160326494 Cunha Nov 2016 A1
20160362650 Wojciechowski et al. Dec 2016 A1
20160362652 Page et al. Dec 2016 A1
20170349869 Frank et al. Dec 2017 A1
20170349872 Frank Dec 2017 A1
20170349873 Frank et al. Dec 2017 A1
20180010082 Jaques et al. Jan 2018 A1
20180030398 Castillo Feb 2018 A1
20180155668 Hirschel et al. Jun 2018 A1
20190194628 Rao et al. Jun 2019 A1
Foreign Referenced Citations (275)
Number Date Country
1016332 Aug 1977 CA
4007703 Sep 1991 DE
10244859 Apr 2004 DE
10327988 Jul 2004 DE
102012200939 Jul 2013 DE
0220650 May 1987 EP
750938 Jan 1997 EP
906415 Apr 1999 EP
959980 Dec 1999 EP
1007631 Jun 2000 EP
1028737 Aug 2000 EP
1028991 Aug 2000 EP
1066052 Jan 2001 EP
1066060 Jan 2001 EP
1084230 Mar 2001 EP
1147176 Oct 2001 EP
1220611 Jul 2002 EP
1223956 Jul 2002 EP
1325953 Jul 2003 EP
1437404 Jul 2004 EP
1437406 Jul 2004 EP
1447443 Aug 2004 EP
1452594 Sep 2004 EP
1062321 Dec 2004 EP
1484080 Dec 2004 EP
1498478 Jan 2005 EP
1538196 Jun 2005 EP
1036057 Oct 2005 EP
1605044 Dec 2005 EP
1756262 Feb 2007 EP
1771737 Apr 2007 EP
1882030 Jan 2008 EP
1908490 Apr 2008 EP
1971679 Sep 2008 EP
1991668 Nov 2008 EP
2200622 Jun 2010 EP
2208782 Jul 2010 EP
2264145 Dec 2010 EP
2027247 Jan 2011 EP
2303293 Apr 2011 EP
2311938 Apr 2011 EP
2331957 Jun 2011 EP
2334310 Jun 2011 EP
2334783 Jun 2011 EP
2361968 Aug 2011 EP
2366775 Sep 2011 EP
2465922 Jun 2012 EP
2548951 Jan 2013 EP
2561066 Feb 2013 EP
2575831 Apr 2013 EP
2591789 May 2013 EP
2624845 Aug 2013 EP
2626417 Aug 2013 EP
2641606 Sep 2013 EP
2689008 Jan 2014 EP
2694639 Feb 2014 EP
2697362 Feb 2014 EP
2739720 Jun 2014 EP
2807246 Dec 2014 EP
1414671 Nov 1975 GB
2297980 Aug 1996 GB
2360789 Oct 2001 GB
3285 May 2007 HU
H02245177 Sep 1990 JP
2003052360 Feb 2003 JP
2003510068 Mar 2003 JP
2005278564 Oct 2005 JP
2006223273 Aug 2006 JP
2007000038 Jan 2007 JP
5548207 Jul 2014 JP
115206 Apr 2003 MY
8602379 Apr 1986 WO
8801643 Mar 1988 WO
9002171 Mar 1990 WO
WO-9013306 Nov 1990 WO
WO-9105238 Apr 1991 WO
9107485 May 1991 WO
WO-9106641 May 1991 WO
WO-9109194 Jun 1991 WO
9210564 Jun 1992 WO
WO-9425571 Nov 1994 WO
9504813 Feb 1995 WO
9521911 Aug 1995 WO
WO-9629395 Sep 1996 WO
WO-9639035 Dec 1996 WO
WO-9705826 Feb 1997 WO
9716527 May 1997 WO
WO-9729792 Aug 1997 WO
WO-9739104 Oct 1997 WO
WO-1997-040137 Oct 1997 WO
WO-9831403 Jul 1998 WO
9853046 Nov 1998 WO
WO-9851317 Nov 1998 WO
WO-9851785 Nov 1998 WO
WO-9905180 Feb 1999 WO
WO-9924391 May 1999 WO
WO-9924490 May 1999 WO
WO-9927167 Jun 1999 WO
WO-9949015 Sep 1999 WO
WO-0006704 Feb 2000 WO
WO-0009018 Feb 2000 WO
WO-0016420 Mar 2000 WO
WO-0017326 Mar 2000 WO
WO-0029002 May 2000 WO
WO-0032225 Jun 2000 WO
WO-0044058 Jul 2000 WO
WO-0054651 Sep 2000 WO
WO-0056405 Sep 2000 WO
WO-0059933 Oct 2000 WO
WO-0069449 Nov 2000 WO
0075275 Dec 2000 WO
WO-0075196 Dec 2000 WO
WO-0077236 Dec 2000 WO
WO-2001000783 Jan 2001 WO
WO-2001011011 Feb 2001 WO
WO-2001018174 Mar 2001 WO
WO-2001021766 Mar 2001 WO
0123520 Apr 2001 WO
WO-2001025402 Apr 2001 WO
WO-2001029189 Apr 2001 WO
WO-0122810 Apr 2001 WO
WO-2001034167 May 2001 WO
WO-2001049851 Jul 2001 WO
WO-2001054706 Aug 2001 WO
WO-2001-094541 Dec 2001 WO
0228996 Apr 2002 WO
WO-2002042422 May 2002 WO
WO-2002057430 Jul 2002 WO
WO-2002092794 Nov 2002 WO
WO-2002101385 Dec 2002 WO
WO-2003010303 Feb 2003 WO
WO-2003014313 Feb 2003 WO
WO-2003016916 Feb 2003 WO
WO-2003023018 Mar 2003 WO
WO-2003023019 Mar 2003 WO
WO-2003025167 Mar 2003 WO
WO-2003029402 Apr 2003 WO
WO-2003040336 May 2003 WO
WO-2003042405 May 2003 WO
WO-2003046161 Jun 2003 WO
WO-2003055989 Jul 2003 WO
WO-2003061685 Jul 2003 WO
WO-2003061686 Jul 2003 WO
WO-2003068961 Aug 2003 WO
WO-2003072064 Sep 2003 WO
WO-2003078609 Sep 2003 WO
WO-2003078967 Sep 2003 WO
WO-2003080816 Oct 2003 WO
WO-2003082145 Oct 2003 WO
WO-2003085099 Oct 2003 WO
WO-2003089631 Oct 2003 WO
WO-2003091398 Nov 2003 WO
WO-2003095631 Nov 2003 WO
03105663 Dec 2003 WO
WO-2004001697 Dec 2003 WO
WO-2004012226 Feb 2004 WO
WO-2004016779 Feb 2004 WO
2004024303 Mar 2004 WO
WO-2004018526 Mar 2004 WO
WO-2004018655 Mar 2004 WO
WO-2004026115 Apr 2004 WO
WO-2004029231 Apr 2004 WO
WO-2004042023 May 2004 WO
WO-2004042033 May 2004 WO
WO-2004042040 May 2004 WO
WO-2004044127 May 2004 WO
WO-2004044158 May 2004 WO
WO-2004046304 Jun 2004 WO
WO-2004050826 Jun 2004 WO
WO-2004053096 Jun 2004 WO
WO-2004055155 Jul 2004 WO
WO-2004056186 Jul 2004 WO
WO-2004065616 Aug 2004 WO
WO-2004069172 Aug 2004 WO
WO-2004070013 Aug 2004 WO
WO-2004072264 Aug 2004 WO
WO-2004073633 Sep 2004 WO
WO-2004074464 Sep 2004 WO
WO-2004076642 Sep 2004 WO
WO-2004076653 Sep 2004 WO
2004090112 Oct 2004 WO
WO-2004087870 Oct 2004 WO
WO-2004094588 Nov 2004 WO
WO-2004096975 Nov 2004 WO
WO-2004104166 Dec 2004 WO
WO-2004106499 Dec 2004 WO
WO-2004113513 Dec 2004 WO
WO-2005001033 Jan 2005 WO
WO-2005001081 Jan 2005 WO
WO-2005003320 Jan 2005 WO
WO-2005007799 Jan 2005 WO
WO-2005010172 Feb 2005 WO
WO-2005011524 Feb 2005 WO
WO-2005012480 Feb 2005 WO
WO-2005012510 Feb 2005 WO
WO-2005012512 Feb 2005 WO
WO-05014775 Feb 2005 WO
WO-2005028433 Mar 2005 WO
WO-05044972 May 2005 WO
WO-2005056747 Jun 2005 WO
WO-05051316 Jun 2005 WO
WO-2005063303 Jul 2005 WO
WO-2005075636 Aug 2005 WO
2005087915 Sep 2005 WO
WO-2005107760 Nov 2005 WO
WO-2006009291 Jan 2006 WO
WO-2006032075 Mar 2006 WO
WO-2006032092 Mar 2006 WO
WO-2006108229 Oct 2006 WO
WO-2006113881 Oct 2006 WO
WO-2006121445 Nov 2006 WO
WO-06124021 Nov 2006 WO
WO-06129312 Dec 2006 WO
WO-2007115367 Oct 2007 WO
WO-2007115368 Oct 2007 WO
2007136821 Nov 2007 WO
2007139742 Dec 2007 WO
2007139746 Dec 2007 WO
2007139747 Dec 2007 WO
2007139748 Dec 2007 WO
WO-2008006168 Jan 2008 WO
WO-2008011664 Jan 2008 WO
WO-2008017128 Feb 2008 WO
WO-2008028241 Mar 2008 WO
WO-08040812 Apr 2008 WO
2008109674 Sep 2008 WO
WO-2008116261 Oct 2008 WO
WO-2008149129 Dec 2008 WO
2009034186 Mar 2009 WO
WO-2009026635 Mar 2009 WO
WO-09058146 May 2009 WO
WO-09080054 Jul 2009 WO
WO-09081408 Jul 2009 WO
WO-2009140452 Nov 2009 WO
WO-09132457 Nov 2009 WO
WO-2009144720 Dec 2009 WO
WO-10005527 Jan 2010 WO
WO-2010019886 Feb 2010 WO
WO-10014253 Feb 2010 WO
WO-10019997 Feb 2010 WO
WO-2010026573 Mar 2010 WO
WO-2010026574 Mar 2010 WO
WO-2010026575 Mar 2010 WO
WO-2010036760 Apr 2010 WO
WO-2010059487 May 2010 WO
WO-10061377 Jun 2010 WO
WO-10068710 Jun 2010 WO
WO-10071826 Jun 2010 WO
WO-10083385 Jul 2010 WO
WO-10111255 Sep 2010 WO
WO-10119036 Oct 2010 WO
WO-10123594 Oct 2010 WO
WO-2011025445 Mar 2011 WO
WO-2011132087 Oct 2011 WO
WO-2011147967 Dec 2011 WO
WO-2012072924 Jun 2012 WO
WO-2012127320 Sep 2012 WO
WO-2012138968 Oct 2012 WO
WO-2012140519 Oct 2012 WO
2012171026 Dec 2012 WO
2012171030 Dec 2012 WO
WO-2013110651 Aug 2013 WO
WO-2014037862 Mar 2014 WO
WO-2014037863 Mar 2014 WO
WO-2014068508 May 2014 WO
WO-2014128306 Aug 2014 WO
WO-2014128634 Aug 2014 WO
WO-2014131846 Sep 2014 WO
WO-2014141111 Sep 2014 WO
WO-2015004609 Jan 2015 WO
2015073913 May 2015 WO
WO-2015118148 Aug 2015 WO
WO-2015118149 Aug 2015 WO
WO-2015131143 Sep 2015 WO
WO-2017072201 May 2017 WO
Non-Patent Literature Citations (290)
Entry
Chang et al., “Membrane Bioreactors: Present and Prospects”, Advances in Biochemical Engineering, 1991, pp. 27-64, vol. 44.
Chang, Ho Nam, “Membrane Bioreactors: Engineering Aspects”, Biotech. Adv., 1987, pp. 129-145, vol. 5.
Edgington, Stephen M., “New Horizons for Stem-Cell Bioreactors”, Biotechnology, Oct. 1992, pp. 1099-1106, vol. 10.
Gastens et al., “Good Manufacturing Practice-Compliant Expansion of Marrow-Derived Stem and Progenitor Cells for Cell Therapy”, Cell Transplantation, 2007, pp. 685-696, vol. 16.
Gramer et al., “Screening Tool for Hollow-Fiber Bioreactor Process Development”, Biotechnol. Prog., 1998, pp. 203-209, vol. 14.
Hirschel et al., “An Automated Hollow Fiber System for the Large Scale Manufacture of Mammalian Cell Secreted Product”, Large Scale Cell Culture Technology, ed. Bjorn K. Lydersen, 1987, pp. 113-144, Hanser Publishers.
Infanger et al., “Simulated weightlessness changes the cytoskeleton and extracellular matrix proteins in papillary thyroid carcinoma cells”, Cell and Tissue Research, 2006, 324(2): 267-277.
Jones et al., “Genetic stability of bone marrow-derived human mesenchymal stromal cells in the Quantum System”, Cytotherapy, 2013; 15: 1323-1339.
Liu et al., “Ex vivo Expansion of Hematopoietic Stem Cells Derived from Umbilical Cord Blood in Rotating Wall Vessel”, Journal of Biotechnology, 2006, 124:592-601.
Nankervis et al., “Shear Stress Conditions in the Quantum Cell Expansion System”, Poster Session—TERMIS AM Annual Conference 2013, Nov. 12, 2013.
Nguyen et al., “Quantum® Cell Expansion System: Automated Expansion of Human Mesenchymal Stem Cells from Precultured Cells Using the Quantum Cell Expansion System”, Terumo BCT, Inc., 2012.
Nielsen, Lars Keld, “Bioreactors for Hematopoietic Cell Culture”, Annu. Rev. Biomed. Eng., 1999, vol. 1, pp. 129-152.
Pörtner et al., “An Overview on Bioreactor Design, Prototyping and Process Control for Reproducible Three-Dimensional Tissue Culture”, Drug Testing in Vitro: Breakthroughs and Trends in Cell Culture Technology, ed. Uwe Marx and Volker Sandig, 2007, Wiley-VCH, pp. 53-78.
Zhao et al., “Perfusion Bioreactor System for Human Mesenchymal Stem Cell Tissue Engineering: Dynamic Cell Seeding and Construct Development”, Biotechnology and Bioengineering, Aug. 20, 2005, vol. 91, No. 4, pp. 482-493.
Biovest International, “AutovaxIDTM: advanced hollow fibre bioreactors with automated lactate control yield higher density monoclonal antibody production”, VWRbioMarke, No. 21, Sep. 2008, pp. 10-11.
Clausen et al., “Lactate as an Indicator of Terminating Time in Insect Cell Culture Baculovirus Expression Vector Systems”, Biotechnology Techniques, vol. 10, No. 10, Oct. 1996, pp. 721-726.
Gerlach, J.C. et al., “Comparison of hollow fibre membranes for hepatocyte immobilization in bioreactors,” The International Journal of Artificial Organs, 1996, vol. 19 No. 10, pp. 610-616.
Gloeckner et al., “New Miniaturized Hollow-Fiber Bioreacter for in Vivo Like Cell Culture, Cell Expansion, and Production of Cell-Derived Products”, Biotechnol. Prog., Aug. 21, 2001, vol. 17, No. 5, pp. 828-831.
Grayson et al., “Effects of Hypoxia on Human Mesenchymal Stem Cell Expansion and Plasticity in 3D Constructs”, J. Cellular Physiology, 2006, 207:331-339.
Lloyd, J.R. et al., “Hollow-Fibre bioreactors compared to batch and chemostat culture for the production of a recombinant toxoid by a marine Vibrio,” Appl. Microbiol Biotechnol, Aug. 1997, vol. 48, pp. 155-161.
Neumann, Detlef et al., “Bioreaktorsteurung mit grafischer Bedienoberflache,” ATP Automatisierungstechnische Praxis, Mar. 1995, pp. 16-23, vol. 37, No. 3, Munchen, DE. (English language translation provided).
Notice of Allowance and Fee(s) Due, U.S. Appl. No. 15/616,635, dated Feb. 5, 2020.
Notice of Allowance and Fee(s) Due, U.S. Appl. No. 15/616,635, dated Apr. 22, 2020.
Notice of Allowance and Fee(s) Due, U.S. Appl. No. 15/616,745, dated Nov. 14, 2019.
Notice of Allowance and Fee(s) Due, U.S. Appl. No. 15/616,876, dated Jan. 2, 2020.
Office Action, U.S. Appl. No. 15/616,635, dated Jun. 24, 2019.
Office Action, U.S. Appl. No. 15/616,745, dated Jun. 10, 2019.
Office Action, U.S. Appl. No. 15/616,876, dated Apr. 18, 2019.
Ozturk et al., “Real-Time Monitoring and Control of Glucose and Lactate Concentrations in a Mammalian Cell Perfusion Reactor”, Biotechnology and Bioengineering, vol. 53, No. 4, Feb. 20, 1997, pp. 372-378.
Sauer, I. et al., “Extracorporeal liver support based on primary human liver cells and albumin dialysis—treatment of patient with primary graft non function,” Journal of Hepatology, Oct. 2003, vol. 39 No. 4, pp. 649-653.
Wang et al., “Influence of Oxygen on the Proliferation and Metabolism of Adipose Derived Adult Stem Cells”, J. Cellular Physiology, 2005, 204:184-161.
Zhao et al., “Effects of Oxygen Transport on 3-D human Mesenchymal Stem Cell Metabolic Activity in Perfusion and Static Cultures: Experiments and Mathematical Model”, Biotechnol. Prog, 2005, 27, 1269-1280.
Abumiya, et al at National Cardiovascular Center Research Institute in Japan, suggest that subjecting human umbilical vein endothelial cells (HUVECs) to laminar shear stress for a period of 8 hours increased the relative expression of VEGFR-2 mRNA (Ateriosclerosis, Thrombosis, and Vascular Biology, 2002).
Afzali B, Edozie FC, Fazekasova H, Scotta C, Mitchell PJ, Canavan JB, Kordasti SY, Chana PS, Ellis R, Lord GM, John S, Hilton R, Lechler RI, Lombardi G. Comparison of regulatory T cells in hemodialysis patients and healthy controls: implications for cell therapy in transplantation. Clin J Am Soc Nephrol. 2013;8(8):1396-405.
Akram, Khondoker M., et al. “Mesenchymal stem cells promote alveolar epithelial cell wound repair in vitro through distinct migratory and paracrine mechanisms.” Respiratory research 14.1 (2013): 1-16.
Alberts B, Johnson A, Lewis J, et al. Molecular Biology of the Cell. 4th edition. New York: Garland Science; 2002. Fibroblasts and Their Transformations: The Connective-Tissue Cell Family. Available from: https://www.ncbi.nlm.nih.gov/books/NBK26889.
Alenazi, Noof A., et al. “Modified polyether-sulfone membrane: A mini review.” Designed monomers and polymers 20.1 (2017): 532-546.
Almeida L, Lochner M, Berod L, Sparwasser T. Metabolic pathways in T cell activation and lineage differentiation. Semin Immunol. 2016;28(5):514-524.
Amy Putnam, Todd M. Brusko, Michael R. Lee, Weihong Liu, Gregory L. Szot, Taumoha Ghosh, Mark A. Atkinson, and Jeffrey A. Bluestone. Expansion of human regulatory T-Cells from patients with Type 1 Diabetes. Diabetes, 58: 652-662, 2009.
Anamelechi, Charles C., et al. “Streptavidin binding and endothelial cell adhesion to biotinylated fibronectin.” Langmuir 23.25 (2007): 12583-12588.
Anurathapan et al., “Engineered T cells for cancer treatment,” Cytotherapy, vol. 16, pp. 713-733, 2014.
Aronowski J, Samways E, Strong R, Rhoades HM, Grotta JC. An alternative method for the quantitation of neuronal damage after experimental middle cerebral artery occlusion in rats: Analysis of behavioral deficit. Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism. 1996;16:705-713.
Arrigoni, Chiara, et al. “Rotating versus perfusion bioreactor for the culture of engineered vascular constructs based on hyaluronic acid.” Biotechnology and bioengineering 100.5 (2008): 988-997.
Azar, Toni, Jody Sharp, and David Lawson. “Heart rates of male and female Sprague-Dawley and spontaneously hypertensive rats housed singly or in groups.” Journal of the American Association for Laboratory Animal Science 50.2 (2011): 175-184.
Baecher-Allan, Clare, et al. “CD4+ CD25high regulatory cells in human peripheral blood.” The Journal of Immunology 167.3 (2001): 1245-1253.
Bai, Tao, et al. “Expansion of primitive human hematopoietic stem cells by culture in a zwitterionic hydrogel.” Nature medicine 25.10 (2019): 1566-1575.
Bai/Delaney (Nohla Therapeutics) showed that expanding Cord Blood-derived CD34+CD38-CD45RA-HSPCs in a biodegradable zwitterionic hydrogel with a rNotch ligand cocktail for 24 days mitigated HSPC differentiation and promoted self-renewal of lymphoid and myeloid cell phenotypes in an NSG mouse model (Nature Medicine, 2019).
Ballas CB, Zielske SP, Gerson SL (2002) Adult bone marrow stem cells for cell and gene therapies: implications for greater use. J Cell Biochem Suppl 38: 20-28.
Ballke C, Gran E, Baekkevold ES, Jahnsen FL. Characterization of Regulatory T-Cell Markers in CD4+ T Cells of the Upper Airway Mucosa. PLoS One. 2016;11(2):e0148826.
Baraniak PR, McDevitt TC (2010) Stem cell paracrine actions and tissue regeneration. Regen Med 5(1): 121-143.
Barckhausen C, Rice B, Baila S, et al. (2016) GMP-Compliant Expansion of Clinical-Grade Human Mesenchymal Stromal/Stem Cells Using a Closed Hollow Fiber Bioreactor. Methods Mol Biol 1416: 389-412.
Barker et al. “CD34+ Cell Content of 126 341 Cord Blood Units in the US Inventory: Implications for Transplantation and Banking,” blood Advances, vol. 3, No. 8, pp. 1267-1271, Apr. 23, 2019.
Barker, Juliet N., et al. “CD34+ cell content of 126 341 cord blood units in the US inventory: implications for transplantation and banking.” Blood advances 3.8 (2019): 1267-1271.
Bazarian JJ, Cernak I, Noble-Haeusslein L, Potolicchio S, Temkin N. Long-term neurologic outcomes after traumatic brain injury. The Journal of head trauma rehabilitation. 2009;24:439-451.
Bending D, Pesenacker AM, Ursu S, Wu Q, Lom H, Thirugnanabalan B, Wedderburn LR. Hypomethylation at the regulatory T cell-specific demethylated region in CD25hi T cells is decoupled from FOXP3 expression at the inflamed site in childhood arthritis. J Immunol. 2014;193(6):2699-708.
Berendse M, Grounds MD, Lloyd CM (2003) Myoblast structure affects subsequent skeletal myotube morphology and sarcomere assembly. Exp Cell Res 291(2): 435-450.
Bernard, A., Payton, Mark 1995. “Fermentation and Growth of Escherichia coli for Optimal Protein Production”.
Berney SM, Schaan T, Wolf RE, van der Heyde H, Atkinson TP. CD2 (OKT11) augments CD3-mediated intracellular signaling events in human T lymphocytes. J Investig Med. 2000;48(2):102-9.
Bioheart Clinical Trial Clinica 1302 Apr. 18, 2008.
Biomolecular and Cellular Interactions with the Hollow Fiber Membrane Currently Used in the Quantum® Cell Expansion System. 12th NJ Symposium on Biomaterials Science, Oct. 6-7, 2014, New Brunswick, NJ.
Blache C, Chauvin JM, Marie-Cardine A, Contentin N, Pommier P, Dedreux I, Francois S, Jacquot S, Bastit D, Boyer O. Reduced frequency of regulatory T cells in peripheral blood stem cell compared to bone marrow transplantations. Biol Blood Marrow Transplant. 2010;16(3):430-4.
Bluestone et al. Type 1 diabetes immunotherapy using polyclonal regulatory T cells. Science Translational Medicine 7(315):1-34, 2015.
Bluestone JA, Tang Q. Treg cells—the next frontier of cell therapy. Science. 2018;362(6411):154-155.
Bluestone, Jeffrey A., et al. “Type 1 diabetes immunotherapy using polyclonal regulatory T cells.” Science translational medicine 7.315 (2015): 315ra189-315ra189.
Blum S, Moore AN, Adams F, Dash PK. A mitogen-activated protein kinase cascade in the ca1/ca2 subfield of the dorsal hippocampus is essential for long-term spatial memory. The Journal of neuroscience : the official journal of the Society for Neuroscience. 1999; 19:3535-3544.
Boitano, Anthony E., et al. “Aryl hydrocarbon receptor antagonists promote the expansion of human hematopoietic stem cells.” Science 329.5997 (2010): 1345-1348.
Bojun Li et al. Heparin-induced conformation changes of fibronectin within the extracellular matrix promote hMSC osteogenic differentiation. Biomaterials Science 3: 73-84, 2015.
Boquest AC, Shahdadfar A, Brinchmann JE, Collas P. Isolation of Stromal Stem Cells from Human Adipose Tissue. Methods Mol Biol. 2006;325:35-46. doi: 10.1385/1-59745-005-7:35. PMID: 16761717.
Borden, M. and Longo, M., “Dissolution Behavior of Lipid Monolayer-Coated, Air-Filled Microbubbles: Effect of Lipid Hydrophobic Chain Length,” Langmuir, vol. 18, pp. 9225-9233, 2002.
Bourke, Sharon L., and Joachim Kohn. “Polymers derived from the amino acid L-tyrosine: polycarbonates, polyarylates and copolymers with poly (ethylene glycol).” Advanced drug delivery reviews 55.4 (2003): 447-466.
Brand, K. and Hermfisse, U., “Aerobic Glycolysis by Proliferating Cells: a Protective Strategy against Reactive Oxygen Species,” The FASEB Journal, vol. 11, pp. 388-395, Apr. 1997.
Brentjens et al., “CD19-Targeted T Cells Rapidly Induce Molecular Remission in Adults with Chemotherapy-Refractory Acute Lympohblastic Leukemia,” Science Translational Medicine, vol. 5, Issue 177, pp. 1-9, Mar. 20, 2013.
Brentjens et al., “Safety and Persistance of Adoptively Transferred Autologous CD19-Target T Cells in Patients with Relapsed or Chemotherapy Refractory B-Cell Leukemias,” Blood, vol. 118, No. 18, pp. 4817-4828, Nov. 3, 2011.
Brunstein C, Miller J, Cao Q, Mckenna D, Hippen K, Curtsinger J, DeFor T, Levine B, June C, Rubinstein P, McGlave P, Blazar B, Wagner J. Infusion of ex vivo expanded T regulatory cells in adults transplanted with umbilical cord blood: safety profile and detection kinetics. Blood 2011; 117(3):1061-1070.
C. H. Weaver, et al. An Analysis of Engraftment Kinetics as a function of the CD34 Content of the Peripheral Blood Progenitor Cell Collections in 692 Patients After the Administration of Myeloblative Chemotherapy. Blood 86(10): 3691-3969, 1995.
Cano, Àngels, Cristina Minguillón, and Cristina Palet. “Immobilization of endo-1, 4-β-xylanase on polysulfone acrylate membranes: Synthesis and characterization.” Journal of membrane science 280.1-2 (2006): 383-388.
Carswell, K. and Papoutsakis, E. “Culture of Human T Cells in Stirred Bioreactors for Cellular Immunotherapy Applications: Shear, Proliferation, and the IL-2 Receptor,” Biotechnology and Bioengineering, vol. 68, No. 3, pp. 329-338, May 5, 2000.
Celeste Nelson et al., Emergent patterns of growth controlled by multicellular form and mechanics, (in Christopher Chen's Lab demonstrated, in separate experiments, that curved surfaces with a radius of curvature (200 ?m) that is greater than the cell diameter and surfaces that have undulating special patterning (depressions) increase the patterned growth of ECs [PNAS 102(33): 11594-11599, 2005].
Chapman NM, Chi H. mTOR signaling, Tregs and immune modulation. Immunotherapy. 2014;6(12):1295-311.
Chaudhry A, Samstein RM, Treuting P, Liang Y, Pils MC, Heinrich JM, Jack RS, Wunderlich FT, Bruning JC, Muller W, Rudensky AY. Interleukin-10 signaling in regulatory T cells is required for suppression of Th17 cell-mediated inflammation. Immunity. 2011;34(4):566-78.
Chen, C. and Broden, M., “The Role of Poly(theylene glycol) Brush Architecture in Complement Activation on Targeted Microbubble Surfaces,” Biomaterials, vol. 32, No. 27, pp. 6579-6587, Jun. 17, 2011.
Choi W, Kwon SJ, Jin HJ, et al. (2017) Optimization of culture conditions for rapid clinical-scale expansion of human umbilical cord blood-derived mesenchymal stem cells. Clin Transl Med 6(1): 38.
Chullikana A, Majumdar AS, Gottipamula S, et al. (2015) Randomized, double-blind, phase I/II study of intravenous allogeneic mesenchymal stromal cells in acute myocardial infarction. Cytotherapy 17(3): 250-261.
Claudio G. Brunstein, Jeffrey S. Miller, Qing Cao, Daivd H. McKenna, Keli L. Hippen, Julie Curtsinger, Todd Defor, Bruce L. Levine, Carl H. June, Pablo Rubinstein, Philip B. McGlave, Bruce R. Blazar, and John E. Wagner. Infusion of ex vivo expanded T regulatory cells in adults transplanted with umbilical cord blood: safety profile and detection kinetics. Blood, 117(3): 1061-1070, 2010.
Coeshott C, Vang B, Jones M, Nankervis B. Large-scale expansion and characterization of CD3(+) T-cells in the Quantum((R)) Cell Expansion System. J Transl Med. 2019;17(1):258.
Coombes JL, Robinson NJ, Maloy KJ, Uhlig HH, Powrie F. Regulatory T cells and intestinal homeostasis. Immunol Rev. 2005;204:184-94.
Coquillard C. mTOR Signaling in Regulatory T cell Differentiation and Expansion. SOJ Immunology. 2015;3(1):1-10.
Creed JA, DiLeonardi AM, Fox DP, Tessler AR, Raghupathi R. Concussive brain trauma in the mouse results in acute cognitive deficits and sustained impairment of axonal function. Journal of neurotrauma. 2011;28:547-563.
Cuchiara, Maude L., et al. “Covalent immobilization of stem cell factor and stromal derived factor 1α for in vitro culture of hematopoietic progenitor cells.” Acta biomaterialia 9.12 (2013): 9258-9269.
Da Silva, Ricardo MP, Joao F. Mano, and Rui L. Reis. “Smart thermoresponsive coatings and surfaces for tissue engineering: switching cell-material boundaries.” Trends in Biotechnology 25.12 (2007): 577-583.
Dash PK, Hochner B, Kandel ER. Injection of the camp-responsive element into the nucleus of aplysia sensory neurons blocks long-term facilitation. Nature. 1990;345:718-721.
Dash PK, Johnson D, Clark J, Orsi SA, Zhang M, Zhao J, Grill RJ, Moore AN, Pati S. Involvement of the glycogen synthase kinase-3 signaling pathway in tbi pathology and neurocognitive outcome. PloS one. 2011;6:e24648.
Dash PK, Mach SA, Blum S, Moore AN. Intrahippocampal wortmannin infusion enhances long-term spatial and contextual memories. Learn Mem. 2002;9:167-177.
Dash PK, Orsi SA, Zhang M, Grill RJ, Pati S, Zhao J, Moore AN. Valproate administered after traumatic brain injury provides neuroprotection and improves cognitive function in rats. PloS one. 2010;5:e11383.
Dash PK, Zhao J, Orsi SA, Zhang M, Moore AN. Sulforaphane improves cognitive function administered following traumatic brain injury. Neuroscience letters. 2009;460:103-107.
Davila et al., “Efficacy and Toxicity Management of 19-28z CAR T Cell Therapy in B cell Acute Lymphoblastic Leukemia,” Science Translational Medicine, vol. 6, No. 224, pp. 1-10, Feb. 19, 2014.
Dejana E, Orsenigo F, Lampugnani MG. The role of adherens junctions and ve-cadherin in the control of vascular permeability. Journal of cell science. 2008;121:2115-2122.
Dejana E, Spagnuolo R, Bazzoni G. Interendothelial junctions and their role in the control of angiogenesis, vascular permeability and leukocyte transmigration. Thrombosis and haemostasis. 2001;86:308-315.
Dejana E, Tournier-Lasserve E, Weinstein BM. The control of vascular integrity by endothelial cell junctions: Molecular basis and pathological implications. Developmental cell. 2009;16:209-221.
Del Pino A, Ligero G, Lopez MB, et al. (2015) Morphology, cell viability, karyotype, expression of surface markers and plasticity of three primary cell line cultures before and after the cryostorage in LN2 and GN2. Cryobiology 70(1): 1-8.
Delaney, Colleen, et al. “Notch-mediated expansion of human cord blood progenitor cells capable of rapid myeloid reconstitution.” Nature medicine 16.2 (2010): 232-236.
Ding, Zhongli, Guohua Chen, and Allan S. Hoffman. “Synthesis and purification of thermally sensitive oligomer? enzyme conjugates of poly (N-isopropylacrylamide)? trypsin.” Bioconjugate chemistry 7.1 (1996): 121-125.
Dixon CE, Clifton GL, Lighthall JW, Yaghmai AA, Hayes Rl. A controlled cortical impact model of traumatic brain injury in the rat. Journal of neuroscience methods. 1991;39:253-262.
Dominici M, Le Blanc K, Mueller I, et al. (2006) Minimal criteria for defining multipotent mesenchymal stromal cells. The International Society for Cellular Therapy position statement. Cytotherapy 8(4): 315-317.
Durrani S, Konoplyannikov M, Ashraf M, Haider KH (2010) Skeletal myoblasts for cardiac repair. Regen Med 5(6): 919-932.
Esensten JH, Muller YD, Bluestone JA, Tang Q. Regulatory T-cell therapy for autoimmune and autoinflammatory diseases: The next frontier. J Allergy Clin Immunol. 2018;142(6):1710-1718.
Fakin R, Hamacher J, Gugger M, Gazdhar A, Moser H, Schmid RA. Prolonged amelioration of acute lung allograft rejection by sequential overexpression of human interleukin-10 and hepatocyte growth factor in rats. Exp Lung Res. 2011;37(9):555-62.
Fedorov et al., “PD-1- and CTLA-4-Based Inhibitory Chimeric Antigen Receptors (iCARs) Divert Off-Target Immunotherapy Responses,” Science Translational Medicine, vol. 5, No. 215, pp. 1-12, Dec. 11, 2013.
Ferreira LMR, Muller YD, Bluestone JA, Tang Q. Next-generation regulatory T cell therapy. Nat Rev Drug Discov. 2019;18(10):749-769.
Fischbach, Michael A., Jeffrey A. Bluestone, and Wendell A. Lim. “Cell-based therapeutics: the next pillar of medicine.” Science translational medicine 5.179 (2013): 179ps7-179ps7.
Fisk, Nicholas M., et al. “Can routine commercial cord blood banking be scientifically and ethically justified?.” PLoS medicine 2.2 (2005): e44.
Forbes Jun. 23, 2014 article “Will this man cure cancer?”
Fowler DH. Rapamycin-resistant effector T-cell therapy. Immunol Rev. 2014;257(1):210-25.
Fraser H, Safinia N, Grageda N, Thirkell S, Lowe K, Fry LJ, Scotta C, Hope A, Fisher C, Hilton R, Game D, Harden P, Bushell A, Wood K, Lechler RI, Lombardi G. A Rapamycin-Based GMP-Compatible Process for the Isolation and Expansion of Regulatory T Cells for Clinical Trials. Mol Ther Methods Clin Dev. 2018;8:198-209.
Frauwirth KA, Riley JL, Harris MH, Parry RV, Rathmell JC, Plas DR, Elstrom RL, June CH, Thompson CB. The CD28 signaling pathway regulates glucose metabolism. Immunity. 2002;16(6):769-77.
Fuchs A, Gliwinski M, Grageda N, Spiering R, Abbas AK, Appel S, Bacchetta R, Battaglia M, Berglund D, Blazar B, Bluestone JA, Bornhauser M, Ten Brinke A, Brusko TM, Cools N, Cuturi MC, Geissler E, Giannoukakis N, Golab K, Hafler DA, van Ham SM, Hester J et al. Minimum Information about T Regulatory Cells: A Step toward Reproducibility and Standardization. Front Immunol. 2017;8:1844.
G0211: Study for Gamma Irradiation of Bioreactor Membranes, undated, author unknown, 3 pages.
Galgani M, De Rosa V, La Cava A, Matarese G. Role of Metabolism in the Immunobiology of Regulatory T Cells. J Immunol. 2016;197(7):2567-75.
Garlie, Nina K., et al. “T cells coactivated with immobilized anti-CD3 and anti-CD28 as potential immunotherapy for cancer.” Journal of immunotherapy (Hagerstown, Md.: 1997) 22.4 (1999): 336-345.
Gedaly R, De Stefano F, Turcios L, Hill M, Hidalgo G, Mitov MI, Alstott MC, Butterfield DA, Mitchell HC, Hart J, Al-Attar A, Jennings CD, Marti F. mTOR Inhibitor Everolimus in Regulatory T Cell Expansion for Clinical Application in Transplantation. Transplantation. 2019;103(4):705-715.
Gimble, Jeffrey M., Adam J. Katz, and Bruce A. Bunnell. “Adipose-derived stem cells for regenerative medicine.” Circulation research 100.9 (2007): 1249-1260.
Gingras AC, Raught B, Sonenberg N. Regulation of translation initiation by FRAP/mTOR. Genes Dev. 2001;15(7):807-26.
Godin, Michel, et al. “Measuring the mass, density, and size of particles and cells using a suspended microchannel resonator.” Applied physics letters 91.12 (2007): 123121.
Goh, Celeste, Sowmya Narayanan, and Young S. Hahn. “Myeloid-derived suppressor cells: the dark knight or the joker in viral infections?.” Immunological reviews 255.1 (2013): 210-221.
Golab K, Leveson-Gower D, Wang XJ, Grzanka J, Marek-Trzonkowska N, Krzystyniak A, Millis JM, Trzonkowski P, Witkowski P. Challenges in cryopreservation of regulatory T cells (Tregs) for clinical therapeutic applications. Int Immunopharmacol. 2013;16(3):371-5.
Goldring CE, Duffy PA, Benvenisty N, Andrews PW, Ben-David U, Eakins R, French N, Hanley NA, Kelly L, Kitteringham NR, Kurth J, Ladenheim D, Laverty H, McBlane J, Narayanan G, Patel S, Reinhardt J, Rossi A, Sharpe M, Park BK. Assessing the safety of stem cell therapeutics. Cell stem cell. 2011;8:618-628.
Griesche, Nadine, et al. “A simple modification of the separation method reduces heterogeneity of adipose-derived stem cells.” cells tissues organs 192.2 (2010): 106-115.
Gutcher I, Donkor MK, Ma Q, Rudensky AY, Flavell RA, Li MO. Autocrine transforming growth factor-beta1 promotes in vivo Th17 cell differentiation. Immunity. 2011;34(3):396-408.
Haack-Sorensen M, Follin B, Juhl M, et al. (2016) Culture expansion of adipose derived stromal cells. A closed automated Quantum Cell Expansion System compared with manual flask-based culture. J Transl Med 14(1): 319.
Hall ED, Sullivan PG, Gibson TR, Pavel KM, Thompson BM, Scheff SW. Spatial and temporal characteristics of neurodegeneration after controlled cortical impact in mice: More than a focal brain injury. Journal of neurotrauma. 2005;22:252-265.
Hami et al., “GMP Production and Testing of Xcellerated T Cells for the Treatment of Patients with CLL,” Cytotherapy, pp. 554-562, 2004.
Hamm RJ, Dixon CE, Gbadebo DM, Singha AK, Jenkins LW, Lyeth BG, Hayes RL. Cognitive deficits following traumatic brain injury produced by controlled cortical impact. Journal of neurotrauma. 1992;9:11-20.
Hanley PJ, Mei Z, Durett AG, et al. (2014) Efficient manufacturing of therapeutic mesenchymal stromal cells with the use of the Quantum Cell Expansion System. Cytotherapy 16(8): 1048-1058.
Harimoto, Masami, et al. “Novel approach for achieving double-layered cell sheets co-culture: overlaying endothelial cell sheets onto monolayer hepatocytes utilizing temperature-responsive culture dishes.” Journal of Biomedical Materials Research: An Official Journal of The Society for Biomaterials, The Japanese Society for Biomaterials, and The Australian Society for Biomaterials and the Korean Society for Biomaterials 62.3 (2002): 464-470.
He N, Fan W, Henriquez B, Yu RT, Atkins AR, Liddle C, Zheng Y, Downes M, Evans RM. Metabolic control of regulatory T cell (Treg) survival and function by Lkb1. Proc Natl Acad Sci U S A. 2017;114(47):12542-12547.
He X, Landman S, Bauland SC, van den Dolder J, Koenen HJ, Joosten I. A TNFR2-Agonist Facilitates High Purity Expansion of Human Low Purity Treg Cells. PLoS One. 2016;11(5):e0156311.
Heskins, Michael, and James E. Guillet. “Solution properties of poly (N-isopropylacrylamide).” Journal of Macromolecular Science—Chemistry 2.8 (1968): 1441-1455.
Hill JA, Feuerer M, Tash K, Haxhinasto S, Perez J, Melamed R, Mathis D, Benoist C. Foxp3 transcription-factor-dependent and -independent regulation of the regulatory T cell transcriptional signature. Immunity. 2007;27(5):786-800.
Högstedt, Benkt, Anita Karlsson, and Anders Holmén. “Frequency and size distribution of micronuclei in lymphocytes stimulated with phytohemagglutinin and pokeweed mitogen in workers exposed to piperazine.” Hereditas 109.(1988): 139-142.
Hollyman et al., “Manufacturing Validation of Biologicall Functional T Cells Targeted to CD19 Antigen for Autologous Adoptive Cell Therapy,” J Immunother, vol. 32, No. 2, pp. 169-180, Feb.-Mar. 2009.
Horwitz, Mitchell E., et al. “Phase I/II study of stem-cell transplantation using a single cord blood unit expanded ex vivo with nicotinamide.” Journal of Clinical Oncology 37.5 (2019): 367-373.
http://www.ucdenver.edu/academics/colleges/medicalschool/centers/cancercenter/Research/sharedresources/AnimalImaging/smallanimalimaging/Pages/MRI.aspx.
ISCT Webinar “Volume Reduction technology for Large Scale Harvest or Post-thaw Manipulation of Cellular Therapeutics”.
Itkin, Tomer, and Tsvee Lapidot. “SDF-1 keeps HSC quiescent at home.” Blood, The Journal of the American Society of Hematology 117.2 (2011): 373-374.
Iwashima, Shigejiro, et al. “Novel culture system of mesenchymal stromal cells from human subcutaneous adipose tissue.” Stem cells and development 18.4 (2009): 533-544.
Jang, Eugene, et al. “Syndecan-4 proteoliposomes enhance fibroblast growth factor-2 (FGF-2)-induced proliferation, migration, and neovascularization of ischemic muscle.” Proceedings of the National Academy of Sciences 109.5 (2012): 1679-1684.
Jarocha D, Stangel-Wojcikiewicz K, Basta A, Majka M (2014) Efficient myoblast expansion for regenerative medicine use. Int J Mol Med 34(1): 83-91.
Jin, H., and J. Bae. “Neuropeptide Y regulates the hematopoietic stem cell microenvironment and prevents nerve injury in the bone marrow.” 22nd Annual ISCT Meeting (2016): S29.
Jo CH, Lee YG, Shin WH, et al. (2014) Intra-articular injection of mesenchymal stem cells for the treatment of osteoarthritis of the knee: a proof-of-concept clinical trial. Stem Cells 32(5): 1254-1266.
Johansson, Ulrika, et al. “Pancreatic islet survival and engraftment is promoted by culture on functionalized spider silk matrices.” PloS one 10.6 (2015): e0130169.
John Carvell, et al. Monitoring Live Biomass in Disposable Bioreactors, BioProcess International 14(3)s, Mar. 2016.
John Nicolette, et al (Abbott Laboratories). In Vitro Micronucleus Screening of Pharmaceutical Candidates by Flow Cyto9metry in Chinese Hamster V79 Cells, Environmental and Molecular Mutagenesis 00:000-000, 2010.
John P. Carvell and Jason E. Dowd. On-line measurements and control of viable cell density in cell culture manufacturing processes using radio frequency impedance. Cytotechnology 50: 35-48, 2006.
Johnson, Patrick A., et al. “Interplay of anionic charge, poly (ethylene glycol), and iodinated tyrosine incorporation within tyrosine?derived polycarbonates: Effects on vascular smooth muscle cell adhesion, proliferation, and motility.” Journal of Biomedical Materials Research Part A: An Official Journal of The Society for Biomaterials, The Japanese Society for Biomaterials, and The Australian Society for Biomaterials and the Korean Society for Biomaterials 93.2 (2010): 505-514.
Johnston LC, Su X, Maguire-Zeiss K, Horovitz K, Ankoudinova I, Guschin D, Hadaczek P, Federoff HJ, Bankiewicz K, Forsayeth J. Human interleukin-10 gene transfer is protective in a rat model of Parkinson's disease. Mol Ther. 2008;16(8):1392-9.
Jones2016ISCT 2016 Poster 69.
Joy, Abraham, et al. “Control of surface chemistry, substrate stiffness, and cell function in a novel terpolymer methacrylate library.” Langmuir 27.5 (2011): 1891-1899.
Kalamasz et al., “Optimization of Human T-Cell Expansion Ex Vivo Using Magnetic Beads Conjugated with Anti-CD3 and Anti-CD28 Antibodies,” J Immunother, vol. 27, No. 5, pp. 405-418, Sep.-Oct. 2004.
Kim, Do-Hyung, et al. “mTOR interacts with raptor to form a nutrient-sensitive complex that signals to the cell growth machinery.” Cell 110.2 (2002): 163-175.
Kishore M, Cheung KCP, Fu H, Bonacina F, Wang G, Coe D, Ward EJ, Colamatteo A, Jangani M, Baragetti A, Matarese G, Smith DM, Haas R, Mauro C, Wraith DC, Okkenhaug K, Catapano AL, De Rosa V, Norata GD, Marelli-Berg FM. Regulatory T Cell Migration is Dependent on Glucokinase-Mediated Glycolysis. Immunity. 2017;47(5):875-889 e10.
Klapper et al., “Single-Pass, Closed-System Rapid Expansion of Lymphocyte Cultures for Adoptive Cell Therapy,” Journal of Immunological Methods, 345, pp. 90-99, Apr. 21, 2009.
Klein, Elias, Eva Eichholz, and Don H. Yeager. “Affinity membranes prepared from hydrophilic coatings on microporous polysulfone hollow fibers.” Journal of membrane science 90.1-2 (1994): 69-80.
Klysz D, Tai X, Robert PA, Craveiro M, Cretenet G, Oburoglu L, Mongellaz C, Floess S, Fritz V, Matias MI, Yong C, Surh N, Marie JC, Huehn J, Zimmermann V, Kinet S, Dardalhon V, Taylor N. Glutamine-dependent alpha-ketoglutarate production regulates the balance between T helper 1 cell and regulatory T cell generation. Sci Signal. 2015;8(396):ra97.
Korpanty et al., “Tageting Vascular Enothelium with Avidin Microbubbles,” Ultrasound in Medicine and Biology, vol. 31, No. 9, pp. 1279-1283, May 24, 2005.
Krauss et al., “Signaling Takes a Breath—New Quantitative Perspectives on Bioenergetics and Signal Transduction,” Immunity, vol. 15, pp. 497-502, Oct. 2001.
Kulikov, A. V., et al. “Application of multipotent mesenchymal stromal cells from human adipose tissue for compensation of neurological deficiency induced by 3-nitropropionic acid in rats.” Bulletin of experimental biology and medicine 145.4 (2008): 514-519.
Kumar P, Marinelarena A, Raghunathan D, Ragothaman VK, Saini S, Bhattacharya P, Fan J, Epstein AL, Maker AV, Prabhakar BS. Critical role of OX40 signaling in the TCR-independent phase of human and murine thymic Treg generation. Cell Mol Immunol. 2019;16(2):138-153.
Kwan, J. and Borden, M., “Lipid Monolayer Collapse and Microbubble Stability,” Advances in Colloid and Interface Science, vols. 183-184, pp. 82-99, Aug. 21, 2012.
Lampugnani MG, Caveda L, Breviario F, Del Maschio A, Dejana E. Endothelial cell-to-cell junctions. Structural characteristics and functional role in the regulation of vascular permeability and leukocyte extravasation. Bailliere's clinical haematology. 1993;6:539-558.
Lang, Julie, et al. “Generation of hematopoietic humanized mice in the newborn BALB/c-Rag2nullll2rγnull mouse model: a multivariable optimization approach.” Clinical Immunology 140.1 (2011): 102-116.
Lataillade, Jean-Jacques, et al. “Chemokine SDF-1 enhances circulating CD34+ cell proliferation in synergy with cytokines: possible role in progenitor survival.” Blood, The Journal of the American Society of Hematology 95.3 (2000): 756-768.
Lee et al., “Continued Antigen Stimulation is Not Required During CD4+ T Cell Clonal Expansion,” The Journal of Immunology, 168, pp. 1682-1689, 2002.
Lee III, Daniel W., et al. “Long-term outcomes following CD19 CAR T cell therapy for B-ALL are superior in patients receiving a fludarabine/cyclophosphamide preparative regimen and post-CAR hematopoietic stem cell transplantation.” Blood 128.22 (2016): 218.
Lee, Jae W., et al. “Allogeneic human mesenchymal stem cells for treatment of E. coli endotoxin-induced acute lung injury in the ex vivo perfused human lung.” Proceedings of the national academy of Sciences 106.38 (2009): 16357-16362.
Levine, B., “T Lymphocyte Engineering ex vivo for Cancer and Infectious Disease,” Expert Opinion on Biological Therapy, vol. 4, No. 4, pp. 475-489, 2008.
Lindstein, Tullia, et al. “Regulation of lymphokine messenger RNA stability by a surface-mediated T cell activation pathway.” Science 244.4902 (1989): 339-343.
Liotta, Francesco, et al. “Frequency of regulatory T cells in peripheral blood and in tumour-infiltrating lymphocytes correlates with poor prognosis in renal cell carcinoma.” BJU international 107.9 (2011): 1500-1506.
Liu W, Putnam AL, Xu-Yu Z, Szot GL, Lee MR, Zhu S, Gottlieb PA, Kapranov P, Gingeras TR, Fazekas de St Groth B, Clayberger C, Soper DM, Ziegler SF, Bluestone JA. CD127 expression inversely correlates with FoxP3 and suppressive function of human CD4+ T reg cells. J Exp Med. 2006;203(7):1701-1711.
Lum et al., “Ultrasound Radiation Force Enables Targeted Deposition of Model Drug Carriers Loaded on Microbubbles,” Journal of Controlled Release, 111, pp. 128-134, 2006.
M. R. Koller, et al. Clinical-scale human umbilical cord blood cell expansion in a novel automated perfusion culture system. Bone Marrow Transplantion 21:653-663, 1998.
Malin, Stephen F., et al. “Noninvasive prediction of glucose by near-infrared diffuse reflectance spectroscopy.” (1999): 1651-1658.
Malone et al., “Characterization of Human Tumor-Infiltrating Lymphocytes Expanded in Hollow-Fiber Bioreactors for Immunotherapy of Cancer,” Cancer Biotherapy & Radiopharmaceuticals, vol. 16, No. 5, pp. 381-390, 2001.
Mao AS, Mooney DJ (2015) Regenerative medicine: current therapies and future directions. Proc Natl Acad Sci USA 112(47): 14452-14459.
Marek-Trzonkowska, Natalia, et al. “Administration of CD4+ CD25highCD127-regulatory T cells preserves β-cell function in type 1 diabetes in children.” Diabetes care 35.9 (2012): 1817-1820.
Maria Streltsova, Dean Lee (Nationwide Children's Hospital, OSU, Columbus, OH) et al (Int'l Journal of Molecular Sciences, 2019).
Markgraf CG, Clifton GL, Aguirre M, Chaney SF, Knox-Du Bois C, Kennon K, Verma N. Injury severity and sensitivity to treatment after controlled cortical impact in rats. Journal of neurotrauma. 2001;18:175-186.
Mathew et al. A Phase I Clinical Trials I with Ex Vivo Expanded Recipient Regulatory T cells in Living Donor Kidney Transplants. Nature, Scientific Reports 8:7428 (1-12), 2018.
Mathew, James M., et al. “A phase I clinical trial with ex vivo expanded recipient regulatory T cells in living donor kidney transplants.” Scientific reports 8.1 (2018): 1-12.
Matthay, Michael A., et al. “Therapeutic potential of mesenchymal stem cells for severe acute lung injury.” Chest 138.4 (2010): 965-972.
Maynard CL, Harrington LE, Janowski KM, Oliver JR, Zindl CL, Rudensky AY, Weaver CT. Regulatory T cells expressing interleukin 10 develop from Foxp3+ and Foxp3-precursor cells in the absence of interleukin 10. Nat Immunol. 2007;8(9):931-41.
McKenna DH, Jr., Sumstad D, Kadidlo DM, et al. Optimization of cGMP purification and expansion of umbilical cord blood-derived T-regulatory cells in support of first-in-human clinical trials. Cytotherapy 2017;19:250-62.
McLimans W, Kinetics of Gas Diffusion in Mammalian Cell Culture Systems. Biotechnology and Bioengineering 1968; 10:725-740.
McMurtrey, Richard J. “Analytic models of oxygen and nutrient diffusion, metabolism dynamics, and architecture optimization in three-dimensional tissue constructs with applications and insights in cerebral organoids.” Tissue Engineering Part C: Methods 22.3 (2016): 221-249.
Menge, Tyler, et al. “Mesenchymal stem cells regulate blood-brain barrier integrity through TIMP3 release after traumatic brain injury.” Science translational medicine 4.161 (2012): 161ra150-161ra150.
Miska J, Lee-Chang C, Rashidi A, Muroski ME, Chang AL, Lopez-Rosas A, Zhang P, Panek WK, Cordero A, Han Y, Ahmed AU, Chandel NS, Lesniak MS. HIF-1alpha is a Metabolic Switch between Glycolytic-Driven Migration and Oxidative Phosphorylation-Driven Immunosuppression of Tregs in Glioblastoma. Cell Rep. 2019;27(1):226-237 e4.
Miyara M, Yoshioka Y, Kitoh A, Shima T, Wing K, Niwa A, Parizot C, Taflin C, Heike T, Valeyre D, Mathian A, Nakahata T, Yamaguchi T, Nomura T, Ono M, Amoura Z, Gorochov G, Sakaguchi S. Functional delineation and differentiation dynamics of human CD4+ T cells expressing the FoxP3 transcription factor. Immunity. 2009;30(6):899-911.
Murugappan, G., et al. “Human hematopoietic progenitor cells grow faster under rotational laminar flows.” Biotechnology progress 26.5 (2010): 1465-1473.
Nankervis B, Jones M, Vang B et al. (2018) Optimizing T Cell Expansion in a Hollow-Fiber Bioreactor. Curr Stem Cell Rep. Advanced online publication. https://doi.org/10.1007/s40778-018-0116-x.
Nankervis, Brian, et al. “Optimizing T cell expansion in a hollow-fiber bioreactor.” Current Stem Cell Reports 4.1 (2018): 46-51.
Nedoszytko B, Lange M, Sokolowska-Wojdylo M, Renke J, Trzonkowski P, Sobjanek M, Szczerkowska-Dobosz A, Niedoszytko M, Gorska A, Romantowski J, Czarny J, Skokowski J, Kalinowski L, Nowicki R. The role of regulatory T cells and genes involved in their differentiation in pathogenesis of selected inflammatory and neoplastic skin diseases. Part II: The Treg role in skin diseases pathogenesis. Postepy Dermatol Alergol. 2017;34(5):405-417.
Nehlin JO, Just M, Rustan AC (2011) Human myotubes from myoblast cultures undergoing senescence exhibit defects in glucose and lipid metabolism. Biogerontology 12: 349-365.
New victories for adult Stem Cell Research New York Feb. 6, 2007.
Newton R, Priyadharshini B, Turka LA. Immunometabolism of regulatory T cells. Nat Immunol. 2016;17(6):618-25.
Ng TH, Britton GJ, Hill EV, Verhagen J, Burton BR, Wraith DC. Regulation of adaptive immunity; the role of interleukin-10. Front Immunol. 2013;4:129.
Nikolaychik, V. V., M. M. Samet, and P. I. Lelkes. “A New, Cryoprecipitate Based Coating for Improved Endothelial Cell Attachment and Growth on Medical Grade Artificial Surfaces.” ASAIO Journal (American Society for Artificial Internal Organs: 1992) 40.3 (1994): M846-52.
Nish SA, Schenten D, Wunderlich FT, Pope SD, Gao Y, Hoshi N, Yu S, Yan X, Lee HK, Pasman L, Brodsky I, Yordy B, Zhao H, Bruning J, Medzhitov R. T cell-intrinsic role of IL-6 signaling in primary and memory responses. Elife. 2014;3:e01949.
Niwayama, Jun, et al. “Analysis of hemodynamics during blood purification therapy using a newly developed noninvasive continuous monitoring method.” Therapeutic Apheresis and Dialysis 10.4 (2006): 380-386.
Nugent, Helen M., et al. “Adventitial endothelial implants reduce matrix metalloproteinase-2 expression and increase luminal diameter in porcine arteriovenous grafts.” Journal of vascular surgery 46.3 (2007): 548-556.
Okano et al (Tokyo Women's Medical College, Japan) demonstrated the recovery of endothelial cells and hepatocytes from plasma-treated polystyrene dishes grafted with PNIAAm (Journal of Biomedical Materials Research, 1993).
Onishi Y, Fehervari Z, Yamaguchi T, Sakaguchi S. Foxp3+ natural regulatory T cells preferentially form aggregates on dendritic cells in vitro and actively inhibit their maturation. Proc Natl Acad Sci U S A. 2008;105(29):10113-8.
Onyszchuk G, LeVine SM, Brooks WM, Berman NE. Post-acute pathological changes in the thalamus and internal capsule in aged mice following controlled cortical impact injury: A magnetic resonance imaging, iron histochemical, and glial immunohistochemical study. Neuroscience letters. 2009;452:204-208.
Pacella I, Procaccini C, Focaccetti C, Miacci S, Timperi E, Faicchia D, Severa M, Rizzo F, Coccia EM, Bonacina F, Mitro N, Norata GD, Rossetti G, Ranzani V, Pagani M, Giorda E, Wei Y, Matarese G, Barnaba V, Piconese S. Fatty acid metabolism complements glycolysis in the selective regulatory T cell expansion during tumor growth. Proc Natl Acad Sci U S A. 2018;115(28):E6546-E6555.
Parhi, Purnendu, Avantika Golas, and Erwin A. Vogler. “Role of Proteins and Water in the Initial Attachment of Mammalian Cells to Biomedical Surfaces: A Review.” Journal of Adhesion Science and Technology 24.5 (2010): 853-888.
Pati S, Gerber MH, Menge TD, Wataha KA, Zhao Y, Baumgartner JA, Zhao J, Letourneau PA, Huby MP, Baer LA, Salsbury JR, Kozar RA, Wade CE, Walker PA, Dash PK, Cox CS, Jr., Doursout MF, Holcomb JB. Bone marrow derived mesenchymal stem cells inhibit inflammation and preserve vascular endothelial integrity in the lungs after hemorrhagic shock. PloS one. 2011;6:e25171.
Pati S, Khakoo AY, Zhao J, Jimenez F, Gerber MH, Harting M, Redell JB, Grill R, Matsuo Y, Guha S, Cox CS, Reitz MS, Holcomb JB, Dash PK. Human mesenchymal stem cells inhibit vascular permeability by modulating vascular endothelial cadherin/beta-catenin signaling. Stem cells and development. 2011;20:89-101.
Pati, Shibani, and Todd E. Rasmussen. “Cellular therapies in trauma and critical care medicine: Looking towards the future.” PLoS Medicine 14.7 (2017): e1002343.
Pati, Shibani, et al. “Lyophilized plasma attenuates vascular permeability, inflammation and lung injury in hemorrhagic shock.” PloS one 13.2 (2018): e0192363.
Peters JH, Preijers FW, Woestenenk R, Hilbrands LB, Koenen HJ, Joosten I. Clinical grade Treg: GMP isolation, improvement of purity by CD127 Depletion, Treg expansion, and Treg cryopreservation. PLoS One. 2008;3(9):e3161.
Peters, R.; Jones, M.; Brecheisen, M.; Startz, T.; Vang, B.; Nankervis, B.; Frank, N.; Nguyen, K. (2012) TerumoBCT. https://www.terumobct.com/location/north-america/products-and-services/Pages/Quantum-Materials.aspx.
Porter CM, Horvath-Arcidiacono JA, Singh AK, Horvath KA, Bloom ET, Mohiuddin MM. Characterization and expansion of baboon CD4+CD25+ Treg cells for potential use in a non-human primate xenotransplantation model. Xenotransplantation. 2007;14(4):298-308.
Povsic TJ, O'Connor CM, Henry T, et al. (2011) A double-blind, randomized, controlled, multicenter study to assess the safety and cardiovascular effects of skeletal myoblast implantation by catheter delivery in patients with chronic heart failure after myocardial infarction. Am Heart J 162(4): 654-662.
Prockop, Darwin J., Carl A. Gregory, and Jeffery L. Spees. “One strategy for cell and gene therapy: harnessing the power of adult stem cells to repair tissues.” Proceedings of the National Academy of Sciences 100.suppl_1 (2003): 11917-11923.
Q. L. Hao, et al. A functional comparison of CD34+ CD38= cells in cord blood and bone marrow. Blood 86:3745-3753, 1995.
Rahmahwati, Nurlaela, Deana Wahyuningrum, and Anita Alni. “The Synthesis of Polyethersulfone (PES) Derivatives for the Immobilization of Lipase Enzyme.” Key Engineering Materials. vol. 811. Trans Tech Publications Ltd, 2019.
Rey-Jurado, Emma, et al. “Assessing the importance of domestic vaccine manufacturing centers: an overview of immunization programs, vaccine manufacture, and distribution.” Frontiers in immunology 9 (2018): 26.
Roballo KC, Dhungana S, Z. J, Oakey J, Bushman J. Localized delivery of immunosuppressive regulatory T cells to peripheral nerve allografts promotes regeneration of branched segmental defects. Biomaterials. 2019;209:1-9.
Rodrigues, C., Fernandes, T., Diogo, M., Lobato da Silva, C., Cabral, J. Stem Cell Cultivation in Bioreactors. 2011. Biotechnology Advances v. 29, pp. 815-829.
Ronco C1, Levin N, Brendolan A, Nalesso F, Cruz D, Ocampo C, Kuang D, Bonello M, De Cal M, Corradi V, Ricci Z. Flow distribution analysis by helical scanning in polysulfone hemodialyzers: effects of fiber structure and design on flow patterns and solute clearances. Hemodial Int. Oct. 2006; 10(4):380-8.
Ronco, C., Brendolan, A., Crepaldi, C., Todighiero, M., Scabardi, M. Blood and Dialysate Flow Distributions in Hollow-Fiber Hemodialyzers Analyzed by Computerized Helical Scanning Technique. 2002. Journal of the American Society of Nephrology. V. 13, pp. S53-S61.
Rosenblum MD, Way SS, Abbas AK. Regulatory T cell memory. Nat Rev Immunol. 2016;16(2):90-101.
Rubtsov YP, Rasmussen JP, Chi EY, Fontenot J, Castelli L, Ye X, Treuting P, Siewe L, Roers A, Henderson WR, Jr., Muller W, Rudensky AY. Regulatory T cell-derived interleukin-10 limits inflammation at environmental interfaces. Immunity. 2008;28(4):546-58.
Rudensky, Alexander Y. “Regulatory T cells and Foxp3.” Immunological reviews 241.1 (2011): 260-268.
Ryu, Min-Hyung, and Mark Gomelsky. “Near-infrared light responsive synthetic c-di-GMP module for optogenetic applications.” ACS synthetic biology 3.11 (2014): 802-810.
S. Koestenbauer, et al. Protocols for Hematopoietic Stem Cell Expansion from Umbilical Cord Blood. Cell Transplantation 18: 1059-1068, 2009.
S. L. Smith, et al. Expansion of neutrophil precursors and progenitors in suspension cultures of CD34+ cells enriched from human bone marrow. Experimental Hematology 21:870-877, 1993.
Safinia N, Grageda N, Scotta C, Thirkell S, Fry LJ, Vaikunthanathan T, Lechler RI, Lombardi G. Cell Therapy in Organ Transplantation: Our Experience on the Clinical Translation of Regulatory T Cells. Front Immunol. 2018;9:354.
Sahay A, Scobie KN, Hill AS, O'Carroll CM, Kheirbek MA, Burghardt NS, Fenton AA, Dranovsky A, Hen R. Increasing adult hippocampal neurogenesis is sufficient to improve pattern separation. Nature. 2011;472:466-470.
Sakaguchi S, Sakaguchi N, Asano M, Itoh M, Toda M. Immunologic self-tolerance maintained by activated T cells expressing IL-2 receptor alpha-chains (CD25). Breakdown of a single mechanism of self-tolerance causes various autoimmune diseases. J Immunol. 1995;155(3):1151-64.
Sakaguchi S, Sakaguchi N, Shimizu J, Yamazaki S, Sakihama T, Itoh M, Kuniyasu Y, Nomura T, Toda M, Takahashi T. Immunologic tolerance maintained by CD25+ CD4+ regulatory T cells: their common role in controlling autoimmunity, tumor immunity, and transplantation tolerance. Immunol Rev. 2001;182:18-32.
Schild, Howard G. “Poly (N-isopropylacrylamide): experiment, theory and application.” Progress in polymer science 17.2 (1992): 163-249.
Schmitz R, Alessio A, Kina P. The Physics of PET/CT scanners. Imaging Research Laboratory, Department of Radiology, University of Washington http://depts.washington.edu/imreslab/education/Physics%20of%20PET.pdf.
Schwartz RH. T cell anergy. Annu Rev Immunol. 2003;21:305-34.
Shevkoplyas et al., “The Force Acting on a Superparamagnetic Bead due to an Applied Magnetic Field,” Lab on a Chip , 7, pp. 1294-1302, 2007.
Shimazu Y, Shimazu Y, Hishizawa M, Hamaguchi M, Nagai Y, Sugino N, Fujii S, Kawahara M, Kadowaki N, Nishikawa H, Sakaguchi S, Takaori-Kondo A. Hypomethylation of the Treg-Specific Demethylated Region in FOXP3 is a Hallmark of the Regulatory T-cell Subtype in Adult T-cell Leukemia. Cancer Immunol Res. 2016;4(2):136-45.
Shimizu et al (TWMU & Heart Institute of Japan) described the detachment of avian cardiomyocytes from PIPAAm matrixes that were observed to pulse spontaneously with neovascularization in layered sheets three (3) weeks after transplantation (Circulation Research, 2002).
Sigma-Aldrich Cheimcals Mitomycin C (M4287) Msds, v4.4, Jul. 7, 2011.
Sirsi, S. and Borden, M., “Microbubble Composition, Properties, and Biomedical Applications,” Bubble Science, Engineering & Technolology, vol. 1, No. 1-2, pp. 3-17, 2009.
Smith C, Okern G, Rehan S, et al. Ex vivo expansion of human T cells for adoptive immunotherapy using the novel Xeno-free CTS Immune Cell Serum Replacement. Clinical & Translational Immunology 2015;4:e31.
Somerville et al., “Clinical Scale Rapid Expansion of Lymphocytes for Adoptive Cell Transfer Therapy in the Wave® Bioreactor,” Journal of Translational Medicine, vol. 10, No. 69, pp. 1-11, 2012.
Somerville, R. and Dudley, M., “Bioreactors Get Personal,” Oncolmmunology, vol. 1, No. 8, pp. 1435-1437, Nov. 2012.
Spectrum Labs KrosFlo Research IIi TFF System, undated, Spectrum Laboratories, Inc., 4 pages.
Stafano Tiziani, et al. Metabolomic Profiling of Drug Response in Acute Myeloid Leukaemia Cell lines. PLOSone 4(1): e4251 (Jan. 22, 2009).
StAR_Abstract, undated, author unknown, 1 page.
Startz et al May 2016 TBCT T-cell White Paper.
Startz, T., et al. “Maturation of dendritic cells from CD14+ monocytes in an automated functionally closed hollow fiber bioreactor system.” Cytotherapy 16.4 (2014): S29.
Steven M. Bryce, et al (Litron Laboratories). In vitro micronucleus assay scored by flow cytometry provides a comprehensive evaluation of cytogenetic damage and cytotoxicity. Mutation Research 630(1-2): 78-91, 2007.
Steven M. Bryce, et al (Novartis Pharma AG, Johnson & Johnson Pharmaceutical Research, GlaxoSmithKline). Interlaboratory evaluation of a flow cytometric, high content in vitro micronucleus assay. Genetic Toxicology and Environmental Mutagenesis 650: 181-195, 2008.
Stuart, Martien A. Cohen, et al. “Emerging applications of stimuli-responsive polymer materials.” Nature materials 9.2 (2010): 101-113.
Su LF, Del Alcazar D, Stelekati E, Wherry EJ, Davis MM. Antigen exposure shapes the ratio between antigen-specific Tregs and conventional T cells in human peripheral blood. Proc Natl Acad Sci U S A. 2016;113(41):E6192-E6198.
Takezawa, Toshiaki, Yuichi Mori, and Katsutoshi Yoshizato. “Cell culture on a thermo-responsive polymer surface.” Bio/technology 8.9 (1990): 854-856.
The effect of rocking rate and angle on T cell cultures grown in Xuri™ Cell Expansion Systems, Aug. 2014, GE Healthcare UK Limited, 4 pages.
Trzonkowski et al., “Ex Vivo Expansion of CD4+ CD25+ T Regulatory Cells for Immunosuppressive Therapy,” Cytometry Part A, 75A, pp. 175-188, 2009.
Trzonkowski, Piotr, et al. “First-in-man clinical results of the treatment of patients with graft versus host disease with human ex vivo expanded CD4+ CD25+ CD127? T regulatory cells.” Clinical immunology 133.1 (2009): 22-26.
Tsvetkov, Ts, et al. “Isolation and cryopreservation of human peripheral blood monocytes.” Cryobiology 23.6 (1986): 531-536.
Ueda, Ryosuke, et al. “Interaction of natural killer cells with neutrophils exerts a significant antitumor immunity in hematopoietic stem cell transplantation recipients.” Cancer medicine 5.1 (2015): 49-60.
Underwood, P. Anne, et al. “Effects of base material, plasma proteins and FGF2 on endothelial cell adhesion and growth.” Journal of Biomaterials Science, Polymer Edition 13.8 (2002): 845-862.
Urbich, et al from the Goethe-Universität, demonstrated that human endothelial cells increased VEGFR-2 mRNA expression when exposed to 5-15 dynes/cm2 of constant shear force for a period of 6-24 hours (FEBS, 2002).
Van der Net JB, Bushell A, Wood KJ, Harden PN. Regulatory T cells: first steps of clinical application in solid organ transplantation. Transpl Int. 2016;29(1):3-11.
Van der Windt GJ, Pearce EL. Metabolic switching and fuel choice during T-cell differentiation and memory development. Immunol Rev. 2012;249(1):27-42.
Vera et al., “Accelerated Production of Antigen-Specific T-Cells for Pre-Clinical and Clinical Applications Using Gas-Permeable Rapid Expansion Cultureware (G-Rex),” J Immunother, vol. 33, No. 3, pp. 305-315, Apr. 2010.
Villa, Alma Y. Camacho, et al. “CD133+ CD34+ and CD133+ CD38+ blood progenitor cells as predictors of platelet engraftment in patients undergoing autologous peripheral blood stem cell transplantation.” Transfusion and Apheresis Science 46.3 (2012): 239-244.
Visser EP1, Disselhorst JA, Brom M, Laverman P, Gotthardt M, Oyen WJ, Boerman OC. Spatial resolution and sensitivity of the Inveon small-animal PET scanner. J Nucl Med. Jan. 2009;50(1):139-47.
Von Laer, D., et al. “Loss of CD38 antigen on CD34+ CD38+ cells during short-term culture.” Leukemia 14.5 (2000): 947-948.
Wagner Jr, John E., et al. “Phase I/II trial of StemRegenin-1 expanded umbilical cord blood hematopoietic stem cells supports testing as a stand-alone graft.” Cell stem cell 18.1 (2016): 144-155.
Walker, Peter A., et al. “Direct intrathecal implantation of mesenchymal stromal cells leads to enhanced neuroprotection via an NF?B-mediated increase in interleukin-β production.” Stem cells and development 19.6 (2010): 867-876.
Wang R, Dillon CP, Shi LZ, Milasta S, Carter R, Finkelstein D, McCormick LL, Fitzgerald P, Chi H, Munger J, Green DR. The transcription factor Myc controls metabolic reprogramming upon T lymphocyte activation. Immunity. 2011;35(6):871-82.
Wang, Jiamian, John A. Jansen, and Fang Yang. “Electrospraying: possibilities and challenges of engineering carriers for biomedical applications—a mini review.” Frontiers in Chemistry 7 (2019): 258.
Ward H, Vigues S, Poole S, Bristow AF. The rat interleukin 10 receptor: cloning and sequencing of cDNA coding for the alpha-chain protein sequence, and demonstration by western blotting of expression in the rat brain. Cytokine. 2001;15(5):237-40.
Wawman, Rebecca Ellen, Helen Bartlett, and Ye Htun Oo. “Regulatory T cell metabolism in the hepatic microenvironment.” Frontiers in immunology 8 (2018): 1889.
Weber et al., “White Paper on Adoptive Cell Therapy for Cancer with Tumor-Infiltrating Lymphocytes: A Report of the CTEP Subcommittee on Adoptive Cell Therapy,” Clinical Cancer Research, vol. 17, No. 7, pp. 1664-1673, Apr. 1, 2011.
Weiss RA, Weiss MA, Beasley KL, Munavalli G (2007) Autologous cultured fibroblast injection for facial contour deformities: a prospective, placebo-controlled, Phase III clinical trial. Dermatol Surg 33(3): 263-268.
Widdel, F. 2010. “Theory and measurement of bacterial growth” http://www.mpi-bremen.de/Binaries/Binary13037/Wachstumsversuch.pdf.
Yamada, Noriko, et al. “Thermo?responsive polymeric surfaces; control of attachment and detachment of cultured cells.” Die Makromolekulare Chemie, Rapid Communications 11.11 (1990): 571-576.
Yang, Hee Seok, et al. “Suspension culture of mammalian cells using thermosensitive microcarrier that allows cell detachment without proteolytic enzyme treatment.” Cell transplantation 19.9 (2010): 1123-1132.
Yi, Zhuan, et al. “A readily modified polyethersulfone with amino-substituted groups: its amphiphilic copolymer synthesis and membrane application.” Polymer 53.2 (2012): 350-358.
Yoshinari, Masao, et al. “Effect of cold plasma-surface modification on surface wettability and initial cell attachment.” International Journal of Biomedical and Biological Engineering 3.10 (2009): 507-511.
Zappasodi et al., “The Effect of Artificial Antigen-Presenting Cells with Preclustered Anit-CD28/-CD3/LFA-1 Monoclonal Antibodies on the Induction of ex vivo Expansion of Functional Human Antitumor T Cells,” Haematologica, vol. 93, No. 10, pp. 1523-1534, 2008.
Zemmour D, Zilionis R, Kiner E, Klein AM, Mathis D, Benoist C. Publisher Correction: Single-cell gene expression reveals a landscape of regulatory T cell phenotypes shaped by the TCR. Nat Immunol. 2018; 19(6):645.
Zeng B, Kwak-Kim J, Liu Y, Liao AH. Treg cells are negatively correlated with increased memory B cells in pre-eclampsia while maintaining suppressive function on autologous B-cell proliferation. Am J Reprod Immunol. 2013;70(6):454-63.
Zheng, et al at the University of lowa have shown that the differential effects of pulsatile blood flow and cyclic stretch are an important growth stimulus (American Journal of Physiology—Heart and Circulatory Physiology, 2008).
Related Publications (1)
Number Date Country
20200239819 A1 Jul 2020 US
Provisional Applications (1)
Number Date Country
62347025 Jun 2016 US
Divisions (1)
Number Date Country
Parent 15616635 Jun 2017 US
Child 16845686 US