This application contains a Sequence Listing submitted as an ASCII text file. The ASCII text file is named ESX-132-2-Sequencing-Listing.txt, created on May 15, 2023, and 4.38 KB in size. The information in the Sequence Listing is incorporated by reference in its entirety.
The present application relates to, among other things, a method and/or a device for rapid intra-cellular assays and their applications in detection a biomarker in a sample and/or in diagnostic testing a health disorder.
There are great needs to have rapid, sensitive, to monitoring health and diagnosing a disease. Many methods used today involve a detection of cell-free biomarkers in a sample.
The present invention is to provide methods and devices that monitoring health and diagnosing a disease by directly measuring the biomarkers inside a cell (intra-cellular detection) rapidly and easily. Another aspect of the presentation is to provide the devices and methods that measure that quantify the cell-free biomarkers in a blood using the biomarkers inside the cell.
The present invention provides the device and method that detect a biomarker inside a cell in a sample rapidly and easily (e.g. in 60 seconds or less, in one simple step) and applications in monitoring and diagnostic a health condition. The detection probe comprises protein detection agent or nucleic acid detection probe.
Another objective is to rapid intra-cellular assays for detection of a biomarker in a sample and/or in diagnostic testing a health disorder.
According to the present invention, the instant intra-cellular single-cell assay (INSA) provide a one-step chemical contact with the sample containing at least one cell including 60 sec or less incubation, imaging, analyzing, and reporting the presence and quantity of detected intracellular biomarkers, such as nucleic acids and proteins, directly from a fresh crude biological sample, such as a needle biopsy sample, whole blood, urine, sputum, saliva, swab samples (pap smear), and like samples. The INSA procedure provides advantages in diagnosis of, for example, diseases that have established or discoverable intracellular diagnostic biomarkers, for example: infectious diseases; malignant diseases; autoimmune diseases; metabolic diseases, and inherited genetic disorders. The tabulated listing below provides examples of sample sources (e.g., bodily fluid) or sample retrieval methods, disease categories, and diseases and conditions, where the disclosed INSA methodology can be used for diagnosis in accordance with the disclosed methods.
One aspect of the present disclosure is to provide devices and methods for easy and rapid staining of a biomarker inside a cell by utilizing a pair of plates that are movable to each other to manipulate a tissue sample and/or a small volume of staining liquid, reducing sample/staining liquid thickness, making a contact between the sample and staining reagent, etc.—all of them have beneficial effects on the cell staining (simplify and speed up stain, wash free, and save reagent)
Another aspect of the present disclosure is to provide for easy and rapid intra-cellular staining by coating staining reagents on one or both of the plate(s), which upon contacting the liquid sample and/or the staining liquid, are dissolved and diffuse in the sample and/or the staining liquid, easing the handling of staining reagents with no need of professional training.
Another aspect of the present disclosure is to ensure uniform access of the sample to the staining reagent by utilizing the plates and a plurality of spacers of a uniform height to force the sample and/or staining liquid to forma thin film of uniform thickness, leading to same diffusion distance for the staining reagents across a large lateral area over the sample.
Another aspect of the present disclosure is to provide systems for easy and rapid intra-cellular staining and imaging by combining the pair of plates for staining with a mobile communication device adapted for acquiring and analyzing images of the cells stained by the plates. Optionally, the mobile communication is configured to send the imaging data and/or analysis results to a remote location for storage and/or further analysis and interpretation by professional staff or software.
The drawings if any, described below, are for illustration purposes only. In some Figures, the drawings are in scale and not to scale in other Figures. For clarity purposes, some elements are enlarged when illustrated in the Figures. The drawings are not intended to limit the scope of the disclosure.
The following detailed description illustrates certain embodiments of the invention by way of example and not by way of limitation. If any, the section headings and any subtitles used herein are for organizational purposes only and are not to be construed as limiting the subject matter described in any way. The contents under a section heading and/or subtitle are not limited to the section heading and/or subtitle, but apply to the entire description of the present invention.
The term “Stain”, “stain formulation”, and like terms generally refer to a material or mixture that contains a component that can interact with or react with an intracellular target such as a molecule or a virus to form an intracellular reaction product, and that can enable or enhance for example, the detection, the development, the imaging, the quantification, and like descriptors, that relate to establishing the presence of the target and quantifying the amount of the target present inside a cell.
The term “Q-Card” and “QMAX Card” are interchangeable.
“Probe” and like terms refer to a component that can interact with or react with an intracellular target such as a molecule or a virus (see “stain” definition above).
“Intra-cellular”, “intracellular”, and like terms refer to “within a cell” or “inside a cell”.
“Extra-cellular”, “extracellular”, and like terms refer to “outside a cell” or “not inside a cell”.
“Disease”, “condition”, and like terms refers to, for example, any harmful deviation from the normal structural or functional state of a cell or an organism having one or more cells, generally associated with certain signs and symptoms and differing in nature from physical injury. A diseased cell or organism commonly exhibits signs or symptoms indicative of its abnormal state. Disease and condition can be used interchangeably.
The term “intracellular biomarker” refers the biomarkers that are inside a cell.
The term “cell-free biomarker” refers to the biomarkers in a sample but outside the cells in the sample.
The terms “cell-free biomarker” and “free biomarker” are interchangeable.
“Plasma” refers to the blood fluid that contains blood clotting agents. Plasma is a clear yellowish fluid part of the blood. Plasma contains clotting factors and water.
The terms “Serum” refers to the liquid part of the blood after the coagulation. Serum is the water fluid from blood without the clotting factors (i.e., serum=plasma−clotting factors). Serum contains proteins like albumin and globulins.
The terms “X-plate” is a top plate for a Qmax card having two opposable plates.
The terms “M-plate” is a bottom plate or substrate, typically having pillars or spacers, for a Qmax card having two opposable plates.
The term “INSA” is an acronym for instant intra-cellular single-cell assay.
The term “INSH” is an acronym for instant intra-cellular single-cell hybridization.
The term “ISIM” is an acronym for instant intra-cellular single-cell immunoassay.
The term “INSA” is an acronym for instant intra-cellular single-cell assay.
The terms “ELISA” is an acronym for enzyme linked immuno-sorbant assay.
The terms “FISH” is an acronym for fluorescent in situ hybridization.
The terms “CMV” is an acronym for cytomegalovirus.
The terms “LPS” is an acronym for lipopolysaccharides.
The terms “IFN” is an acronym for interferon.
The terms “PPD” is an acronym for purified protein derivative.
The terms “HIV” is an acronym for human immunodeficiency virus.
The terms “HPV” is an acronym for human papillomavirus.
The terms “HBV” is an acronym for Hepatitis B virus.
The terms “IL4”, “IL-4”, and like abbreviations, are acronyms for interleukin 4. IL-4 is a cytokine that induces differentiation of naive helper T cells (Th0 cells) to Th2 cells. When activated by IL-4, Th2 cells subsequently produce additional IL-4 in a positive feedback loop.
The term “intra-cellular staining” refers to stain a biomarkers inside of cell using a detection probe, and the detection probe is initially outside of the cell and then introduced into the cell. In certain embodiments, the detection probe is specific to the biomarkers inside the cell.
The term “staining solution” and “staining liquid” are interchangeable.
The term “inner surface” of the first and second plates are the surfaces that are facing each other in a closed configuration.
According to the present invention, the instant intra-cellular single-cell assay (INSA) provide a one-step chemical contact with the sample containing at least one cell including 60 sec or less incubation, imaging, analyzing, and reporting the presence and quantity of detected intracellular biomarkers, such as nucleic acids and proteins, directly from a fresh crude biological sample, such as a needle biopsy sample, whole blood, urine, sputum, saliva, swab samples (pap smear), and like samples. The INSA procedure provides advantages in diagnosis of, for example, diseases that have established or discoverable intracellular diagnostic biomarkers, for example: infectious diseases; malignant diseases; autoimmune diseases;
metabolic diseases, and inherited genetic disorders. The tabulated listing below provides examples of sample sources (e.g., bodily fluid) or sample retrieval methods, disease categories, and diseases and conditions, where the disclosed INSA methodology can be used for diagnosis in accordance with the disclosed methods.
A method of performing an intra-cellular single-cell assay, comprising:
In some embodiments, the two plates are movable relative to each other and the spacers are between the plates to regulate the spacing between the plates.
A device of an intra-cellular single-cell assay, comprising:
In some embodiments, the detection probe is coated on at least one of the sample contact areas of the plate.
In some embodiments, the analyte comprises a protein or a nucleic acid (e.g. DNA/RNA) or a combination.
In some embodiments, the method and the devices further comprising a permeabilization reagent that assists the probe penetrate into the cell.
A method of collecting and analyzing a sample using intra-cellular cytology comprising:
A subject comprises a human or animal.
In some embodiments, the reagents are a staining reagents and cell permeabilizing reagent. In some embodiments, the reagents are in solution and mixed with the sample. In some embodiments, the reagents are coated and dried on either (i) surface of the first plate and/or on top of the sample, (ii) inner surface of the second plate, or (iii) both,
In some embodiments, the analysis by imaging is cyto-analysis.
In some embodiments, the spacers are fixed on one or both plates. In some embodiments, the spacers are inside of the staining solution.
In some embodiments, the sample is mixed with the staining solution before dropped on the plate.
In some embodiments, the staining solution comprises staining agent (things that stain cells/tissue) in a solution. In some embodiments, the staining solution does not comprises staining dye in a solution, but is configured to transport a staining agent coated on one of the plates into the cells/tissue. In some embodiments, the staining solution comprises staining agent (things that stain cells/tissue) in a solution, and is configured to transport a staining agent coated on one of the plates into the cells/tissue.
In some embodiments, the spacer height is configured to make the stained cells and/or tissues be visible by an imaging device without washing away the staining solution between the second plate and the sample.
In some embodiments, the spacer height is configured to make the stained cells and/or tissues be visible by an imaging device without open the plates after the plates reached a closed configuration.
In some embodiments, a sample was stained without washing away the staining solution between the second plate and the sample, and imaged by an imager, after closing the plates into a closed configuration, in 30 seconds or less, 60 seconds or less, 120 seconds or less, 300 seconds or less, 600 seconds or less, or a range between any of the two.
In some preferred embodiments, a sample was stained without washing away the staining solution between the second plate and the sample, and imaged by an imager, after closing the plates into a closed configuration, in 30 seconds or less, 60 seconds or less, 120 seconds or less, or a range between any of the two.
In some preferred embodiments, a sample was stained without washing away the staining solution between the second plate and the sample, and imaged by an imager, after closing the plates into a closed configuration, in 30 seconds or less, 60 seconds or less, or a range between any of the two.
In some embodiments, the spacer height is 0.2 um (micron) or less, 0.5 um or less, 1 um or less, 3 um or less, 5 um or less, 10 um or less, 20 um or less, 30 um or less, 40 um or less, um or less, or a range between any of the two.
In some preferred embodiments, the spacer height is 3 um or less. In some preferred embodiments, 10 um or less. In some preferred embodiments, 20 um or less. In some preferred embodiments, 30 um or less.
In some preferred embodiments, the staining solution has, after the plates are in a closed configuration, a thickness that is equal or less than sub-noise thickness.
The term “sub-noise thickness” (SNT) reference to the a thickness of a sample or a staining solution, which is thinner than a thickness where the noise in the sample or in the staining solution is below the signal from a specifically bound optical label, making the optical label visible to an imager. Making a staining solution less than the SNT will remove the need to wash away the unbind optical labels.
The terms “detection agent” and “detection probe” are interchangeable
In some embodiments, the present invention provides:
A method for determining the presence and the quantity of one or more intracellular biomarkers indicative of a disease in a sample containing at least one cell, comprising:
contacting the sample containing at least one cell and an intracellular stain formulation for a targeted intracellular biomarker to form an intracellular reaction product within a closed Q-card if the targeted intracellular biomarker is present;
imaging the intracellular reaction product with an imager to generate an image of the intracellular reaction product;
analyzing the image to generate an analysis of the intracellular reaction product to determine the presence and the quantity of one or more intracellular biomarker; and
generating at least one disease diagnosis by correlating the determined presence and the quantity of one or more intracellular biomarker measured in the method with a database of correlated biomarker and disease combinations.
The intracellular stain formulation comprising protein detection probe, nucleic acid detection probe (e.g. RNA, DNA), cell permeabilizing reagent, fixing reagent, or any combination.
A method for correlating a measured intracellular biomarker in a first cell with a measured diseased second cell or an organism having the diseased second cell, comprising:
In one or more embodiments, the present invention provides, for example:
A method for determining the presence and the quantity of one or more intracellular biomarkers indicative of a disease in a sample containing at least one cell, comprising:
contacting the sample containing at least one cell and an intracellular stain formulation for a targeted intracellular biomarker to form an intracellular reaction product within a closed Q-card if the targeted intracellular biomarker is present;
A method for correlating a measured intracellular biomarker in a first cell with a measured diseased second cell or an organism having the diseased second cell, comprising:
A method for detecting whether a subject having TB, comprising:
In some embodiments, QMAX card is used in the step (b). In some embodiments, smartphone is used in step (b).
In some embodiments, the step b comprising the steps:
A method for detecting whether a subject having influenza, comprising:
In some embodiments, QMAX card is used in the step (b). In some embodiments, smartphone is used in step (b).
In some embodiments, the step b comprising the steps:
b. observing, without washing, the staining of the influenza virus and/or the subject's cell.
Other aspects of the present invention include, not limited to:
Use INSH for detection mRNAs inside cells in undiluted whole blood (e.g. inside white blood cells).
Use instant intra-cellular single-cell assay (ISIM) to detect cytokines inside of cells in whole blood, and converted into the free cytokins outside the cells in the whole blood.
Additional exemplary biomarkers to be detected by INSH and ISIM to identify bacteria infection and viral infection.
A method for quantifying a cell-free biomaker in a whole blood, comprising:
In some embodiments, the whole is undiluted.
In some embodiments, the cells are placed between two plates.
An exemplary method for INSH images analysis, comprising:
An example of Quantification of intracellular protein expression level using ISIM, comprising
The blood sample comprising a whole blood, undiluted whole blood, diluted whole blood, or white blood cells.
Nt: total number of pictured cells
Exemplary Biomarkers for identification of bacterial infection and virus infection
Schematic A illustrates the antecedent infection of a healthy white blood cell (WBC)(120) having a nucleus (122) and a normal level of a cytokine such as IL-6 (130). The WBC is infected (130) by a disease agent (not shown) which produces a proliferation or production of elevated levels or abnormal levels of IL-6 (132). The infected WBC secretes (134) IL-6 extracellularly into the plasma or the serum surrounding the infected WBC. The proliferation and secretion of the IL-6 can occur close in time or nearly simultaneously. In the present invention a probe (“P”; 135) molecule is added (144) to the sample containing the infected WBC to contact the intracellular IL-6 and form an intracellularly detectable complex or a reaction product (“P°”; 136) between the probe and the IL-6 target biomarker. The intracellular complex (“P°”) is detected by an imager to generate an image. The image is analyzed by software to determine the presence and quantity of the IL-6 intracellular biomarker. The determined presence and quantity of the IL-6 intracellular biomarker is correlated with a database of extracellular biomarker and disease combinations, such as a correlated IL-4 and IL-6 extracellular biomarker and a bacterial infection disease (see Example 1). The quantity of the induced intracellular IL-6 positively correlates with the plasma or serum IL-6 level.
Schematic B in
Referring to the Figures,
In certain embodiments, machine learning is utilized to analyte the images captured in the INSA. In certain embodiments, the machine learning comprising a use of the spacers and/or monitoring marks in the sample that are captured by the image together with the sample.
INSH for mRNA in fresh whole blood
Procedure: Mix 5 microliters of whole blood with 5 microliters of hybridization buffer and 0.5 microliters Alexa Fluor labelled miRNA probe on the bottom of the Q-Card. Close the Q-Card and incubate at room temperature for −1 min and immediately observe using an iPhone having a Qcard adapter or a fluorescent microscope. The observation includes imaging, recording, and analyzing, an image to generate a disease diagnosis from a correlated biomarker and disease database.
In some embodiments, the first plate and the second plate are connected by a hinge.
In some embodiments, the staining solution has a volume 2 uL(micro-liter) or less, 2 uL or less, 5 uL or less, 10 uL or less, 15 uL or less, 20 uL or less, 30 uL or less, 50 uL or less, 100 uL or less, or a range between any of the two.
In some preferred embodiments, the staining solution has a volume 2 uL(micro-liter) or less, 2 uL or less, 5 uL or less, 10 uL or less, 15 uL or less, 20 uL or less, 30 uL or less, or a range between any of the two.
In some preferred embodiments, the staining solution has a volume 2 uL(micro-liter) or less, 2 uL or less, 5 uL or less, 10 uL or less, 15 uL or less, or a range between any of the two.
The instant intra-cellular single-cell assay (INSA) provide a one-step chemical contact with the sample containing at least one cell including 60 sec or less incubation, imaging, analyzing, and reporting the presence and quantity of detected intracellular biomarkers, such as nucleic acids and proteins, directly from a fresh crude biological sample, such as a needle biopsy sample, whole blood, urine, sputum, saliva, swab samples (pap smear), and like samples. The INSA procedure provides advantages in diagnosis of, for example, diseases that have established or discoverable intracellular diagnostic biomarkers, for example: infectious diseases; malignant diseases; autoimmune diseases; metabolic diseases, and inherited genetic disorders. The tabulated listing below provides examples of sample sources (e.g., bodily fluid) or sample retrieval methods, disease categories, and diseases and conditions, where the disclosed INSA methodology can be used for diagnosis in accordance with the disclosed methods.
Some of INSA Biomarkers and/or process are given below.
INSA Biomarkers in whole blood samples:
urine samples:
Biomarkers in Swab Samples:
Staphylococcus aureus infections of the nose and throat), TB, virus
The following eight examples are the experiments being tested, as a part of embodiments of the present invention.
Co-staining of IL-4 and IL-6 in white blood cells and white blood cells count in fresh human whole blood differentiates a bacterial infection from a virus infection. This experimental example illustrates instant intra-cellular single-cell immunoassay (ISIM), which is a simple assay that can accomplish a blood test that involves, for example, IL-4 and IL-6 staining and quantification. The method can differentiate, for example, a bacterial infection from a virus infection. An increase of IL-4 and IL-6 in blood is a significant biomarker for early bacterial infection. Increased IL-6 in blood shows a 50 to 64.3% sensitivity and an 82.8 to 97.1% specificity. An increased IL-4 in blood shows a 100% sensitivity and a 76.5% specificity of bacterial infection. Co-staining of IL-4 and IL-6 in white blood cells can significantly increase both sensitivity and specificity for differentiating a bacterial infection from other pathogens.
Sampling:
Deposit a drop of whole blood onto a Q-Card.
Staining and Imaging:
Mix the blood with a staining solution including PBS, Zwittgent 3-14, ethanol and AF488-anti-IL-4, and AF647-anti-IL6 antibodies.
Close Q-Card and incubate blood sample with staining solution at room temperature for less than 1 min.
Image white blood cells in the closed Q-Card using an iPhone having an adapter or a fluorescent microscope.
Experimental Results: An IL-4 level higher than 9 pg/ml or an IL-6 level higher than 0.15 pg/ml to <74.5 ng/ml, an increase of the total WBC count and high granulocytes, or both, are significant biomarkers for bacterial infection.
Co-staining of IFN-γ and IL-2 in white blood cells from fresh human whole blood to determine an active Tuberculosis (TB) infection. A distinct profile of IFN-γ and IL-2 is an immunological marker of a mycobacterial load and a clinical status of tuberculosis. Receiver operator characteristics (ROC) analysis revealed that frequencies of purified protein derivative (PPD) specific IFN-γ/I L-2 dual-positive T cells below 56% were an accurate marker for active TB (specificity 100%, sensitivity 70%) enabling effective discrimination from non-active states.
Sampling: Deposit a drop of whole blood onto a Q-Card.
Staining and Imaging:
Mix blood with staining solution including PBS, Zwittergent 3-14, ethanol, and the antibodies
AF488-anti-IFN-γ, AF647-anti-IL2, and AF590-anti-CD16.
Close the Q-Card and the incubate blood sample with the staining solution at room temperature for less than 1 min.
Image the white blood cells in the closed Q-Card using an iPhone having an adapter or a fluorescent microscope.
Experimental Results: IFN-γ/I L-2 dual-positive CD16(−) mononuclear cells below 56% indicates an active Tuberculosis (TB) infection.
HIV Gag p24 antigen staining in white blood cells from fresh human whole blood to diagnose HIV infection. The percentage of HIV p24 antigen-positive cells detected in the peripheral blood of HIV-seropositive individuals is highly correlated with the clinical stage and an inverse correlation with the total number of T4 cells. Combination of detection of p24 in peripheral blood mononuclear cells and the total number of T4 cells are significant biomarkers to determining disease progression in HIV-seropositive individuals.
Sampling: Deposit a drop of whole blood onto a Q-Card.
Staining and Imaging:
Mix the blood with the staining solution including PBS, Zwittergent 3-14, ethanol, and antibodies AF488-anti-p24 and AF647-anti-CD4.
Close the Q-Card and incubate blood sample with staining solution at room temperature for less than 1 min.
Image the white blood cells in the closed Q-Card using an iPhone having an adapter or a fluorescent microscope.
Experimental Results: p24 (+) mononuclear cells higher than 4%, and/or decreased CD4 (+) cells can be diagnosed as an HIV-seropositive blood sample.
INSH HIV RNA Gag-Pol Sequence Staining in White Blood Cells from Fresh Human Whole Blood to Diagnose HIV Infection.
Sampling and pre-printed Staining: Deposit a drop of whole blood onto a Q-Card. that comprises printed/coated dry staining material (AF488-HIV RNA Gag-pol probes and
AF647-scramble control probes) on the Qcard top plate (X-plate).
Imaging: Close the Q-Card and incubate the blood sample in the microvolume embodiment at room temperature for less than 1 min;
Image the white blood cells in the closed Q-Card using an iPhone having an adapter or a fluorescent microscope.
Experimental Results: The percentage of HIV RNA Gap pol probes (+) mononuclear cells higher than 0.01% can be diagnosed as HIV-seropositive blood sample.
HBsAg and HBcAg Staining in White Blood Cells from Fresh Human Whole Blood to Diagnose Hepatitis B (HBV) Infection.
Sampling: Deposit a drop of whole blood onto a Q-Card.
Staining and Imaging:
Mix the blood with the staining solution including PBS, Zwittergent 3-14, ethanol, and antibodies AF488-anti-HBsAg and AF647-anti-HBcAg.
Close the Q-Card and the incubate blood sample with the staining solution at room temperature for less than 1 min;
Image the white blood cells in the closed Q-Card using an iPhone having an adapter or a fluorescent microscope.
Experimental Results: HBsAg and HBcAg (+) peripheral blood mononuclear cells (PBMCs) higher than 5% can be diagnosed as HBV-positive patient sample.
INSH HPV E6/E7 mRNA in Liquid-Based Cervical Cytology Specimen to Diagnose HPV Infection.
Sampling and Staining: Drop a liquid-based cervical cytology specimen onto the bottom plate of a Q-Card with dry print/coat HPV E6/E7 mRNA probes on the top plate of the Q-Card (X-plate);
Close the Q-Card and incubate the specimen sample with the staining solution at room temperature for less than 1 min; and
Image, record, and analyze, the white blood cells in the closed Q-Card using an iPhone having an adapter or a fluorescent microscope.
Experimental Results: Observation of HPV E6/E7 mRNA (+) epithelial cells can be diagnosed as an HPV infection.
ISIM HPV E6/E7 Protein in Liquid-Based Cervical Cytology Specimen to Diagnose HPV Infection
Sampling and Staining:
Experimental Results: Percentage of HPV E6/E7 protein (+) epithelial cells higher than 2% can be diagnosed as HPV positive specimen.
ISIM CMV-Specific Early Antigen (Pp65) Staining in Peripheral Polymorphonuclear Leukocytes (PMNLs) to Diagnose CMV Infection.
Sampling: Repeat the sampling steps 1 to 3 of Example 1.
Staining and Imaging:
Mix blood with staining solution including PBS, Zwittgent 3-14, ethanol, and AF488-anti-pp65 antibody;
Close Q-Card and incubate blood sample with staining solution at room temperature for less than 1 min; and
Image, record, and analyze, the white blood cells in the closed Q-Card using an iPhone having an adapter or a fluorescent microscope.
Experimental Results: pp65 (+) peripheral blood mononuclear cells (PBMCs) higher than 5% can be diagnosed as a CMV-positive patient sample.
INSH Sars-Cov-2 Specific mRNA Probes Staining of Nasopharyngeal Epithelial Cells to Diagnose COVID-19
The genome of human SARS-CoV-2 shares 88% similarity with human SARS-CoV-1, 29% with human MERS, and 99% with Bat coronavirus RaTG13 as shown in
Sampling and Staining:
Mix nasopharyngeal cytology swab with 100 ul of saline in a clean eppendorf tube.
Add 3-10 ul of nasopharyngeal saline mix onto the bottom plate of a Q-Card with dry print/coat Sars-cov-2 specific mRNA probes on the top plate of the Q-Card (X-plate);
Close the Q-Card and incubate the specimen sample with the staining solution at room temperature for less than 1 min; and
Image, record, and analyze, the nasopharyngeal epithelial cells in the closed Q-Card using an iPhone having an adapter or a fluorescent microscope.
Experimental Results: Observation of Sars-cov-2 mRNA (+) epithelial cells can be diagnosed as COVID-19.
ISIM Sars-Cov-2 Specific Antibody Staining of Nasopharyngeal Epithelial Cells to Diagnose COVID-19
Sampling and Staining:
Mix nasopharyngeal cytology swab with staining solution, for example, including PBS, Zwittgent 3-14, ethanol, and AF488-anti-Spike or AF488-anti-Nucleocapsid protein antibody;
Close the Q-Card and incubate the specimen sample with the staining solution (in some embodiments at room temperature for less than 1 min); and
Image, record, and analyze, the nasopharyngeal epithelial cells in the closed Q-Card using an iPhone having an adapter or a fluorescent microscope.
Experimental Results: Observation of AF488-anti-Spike (+) or AF488-anti-Nucelocapsid protein (+) epithelial cells can be diagnosed as COVID-19.
Biomarkers
Tables 1 to 3 provide lists of biomarkers that can be detected in accordance with the present invention and their associated diseases or conditions.
A biomarker, as listed in the accompanying tables, can be for example, a protein or a nucleic acid (e.g., mRNA) biomarker, unless specified otherwise. The diagnosis can be associated with an increase or a decrease in the level of a biomarker in the sample, unless specified otherwise.
Streptocococcus salivaris 16S rRNA, Campylobacter
rectus 16S rRNA, Veillonella parvula 16S rRNA,
Kigella oralis 16S rRNA, and Granulicatella adiacens
tuberculosis)
pylori)
species)
cholerae)
diphtheria)
pallidum)
histolytica)
gondii)
pneumonia)
pneumonia)
jejuni)
anthracis)
The following Table 3 provides a list of biomarkers that can be detected and quantified using the disclosed method, and correlated to associated diseases or health conditions.
In some instances, the biomarker to be detected using the present method is a micro RNA (miRNA) biomarker that is associated with a disease or a health condition. The following Table 7 provides a list of miRNA biomarker that can be detected using the present method.
In some embodiments, the spacers are fixed on a plate by directly embossing the plate or injection molding of the plate.
In some embodiments, the materials of the plate and the spacers are selected from polystyrene, PMMA, PC, COC, COP, and another plastic.
In some embodiments, the inter-spacer distance is in the range of 1 um to 200 um.
In some embodiments, the inter-spacer distance is in the range of 200 um to 1000 um.
In some embodiments, the spacers regulating the layer of uniform thickness have a filling factor of at least 1%, wherein the filling factor is the ratio of the spacer area in contact with the layer of uniform thickness to the total plate area in contact with the layer of uniform thickness.
In some embodiments, for spacers regulating the layer of uniform thickness, the Young's modulus of the spacers times the filling factor of the spacers is equal to or larger than 10 MPa, wherein the filling factor is the ratio of the spacer area in contact with the layer of uniform thickness to the total plate area in contact with the layer of uniform thickness.
In some embodiments, for a flexible plate, the thickness of the flexible plate times the Young's modulus of the flexible plate is in the range 60 to 750 GPa-um.
In some embodiments, for a flexible plate, the fourth power of the inter-spacer distance (ISD) divided by the thickness of the flexible plate (h) and the Young's modulus (E) of the flexible plate, ISD4/(hE), is equal to or less than 106 um3/GPa.
In some embodiments, one or both plates comprises a location marker, either on a surface of or inside the plate, that provides information of a location of the plate.
In some embodiments, one or both plates comprises a scale marker, either on a surface of or inside the plate, that provides information of a lateral dimension of a structure of the sample and/or the plate.
In some embodiments, one or both plates comprises an imaging marker, either on surface of or inside the plate, that assists imaging of the sample.
In some embodiments, the spacers function as a location marker, a scale marker, an imaging marker, or any combination thereof.
In some embodiments, the average thickness of the layer of uniform thickness is about equal to a minimum dimension of the analyte in the sample.
In some embodiments, the inter-spacer distance is in the range of 1 um to 50 um.
In some embodiments, the inter-spacer distance is in the range of 50 um to 120 um.
In some embodiments, the inter-spacer distance is in the range of 120 um to 200 um.
In some embodiments, the inter-spacer distance is substantially periodic.
In some embodiments, the spacers are pillars with a cross-sectional shape selected from round, polygonal, circular, square, rectangular, oval, elliptical, and any combination of the same.
In some embodiments, the spacers have a pillar shape and have a substantially flat top surface, wherein, for each spacer, the ratio of the lateral dimension of the spacer to its height is at least 1.
In some embodiments, for each spacer, the ratio of the lateral dimension of the spacer to its height is at least 1.
In some embodiments, wherein a minimum lateral dimension of the spacer is less than or substantially equal to the minimum dimension of the analyte in the sample.
In some embodiments, a minimum lateral dimension of the spacer is in the range of 0.5 um to 100 um.
In some embodiments, a minimum lateral dimension of the spacer is in the range of 0.5 um to 10 um.
In some embodiments, the spacers have a density of at least 100/mm2.
In some embodiments, the spacers have a density of at least 1000/mm2.
In some embodiments, at least one of the plates is transparent.
In some embodiments, at least one of the plates is made from a flexible polymer.
In some embodiments, for a pressure that compresses the plates, the spacers are not compressible and/or, independently, only one of the plates is flexible.
In some embodiments, the flexible plate has a thickness in the range of 10 um to 200 um.
In some embodiments, the variation is less than 30%.
In some embodiments, the variation is less than 10%.
In some embodiments, the variation is less than 5%.
In some embodiments, the collection and cover plates are connected and are configured to be changed from the open configuration to the closed configuration by folding the plates.
In some embodiments, the collection and cover plates are connected by a hinge and are configured to be changed from the open configuration to the closed configuration by folding the plates along the hinge.
In some embodiments, the collection and cover plates are connected by a hinge that is a separate material to the plates, and are configured to be changed from the open configuration to the closed configuration by folding the plates along the hinge.
Aspects
Aspect 1. A method for determining the presence and the quantity of one or more intracellular biomarkers indicative of a disease in a sample containing at least one cell, comprising:
Aspect 2. The method of Aspect 1, wherein the database of the correlated biomarker and disease combinations is based on an extracellular measured concentration of viral responsive biomarker and the diseased cell.
Aspect 3. The method of Aspect 1, wherein the intracellular stain formulation comprises an intracellular stain reagent containing an antibody probe molecule [e.g., AF488-anti-IL-4, and AF647-anti-IL6 antibodies] and/or oligonucleotide probe molecule [e.g., IL-6 Alexa488 60-mer oligo probe, SEQ ID NO: 1]; a buffer; and a cell permeabilizer.
Aspect 4. The method of Aspect 1, wherein the database of the correlated biomarker and disease combinations is based on an extracellular measured concentration of a viral biomarker and the diseased cell.
Aspect 5. The method of Aspect 1, wherein the intracellular stain formulation comprises an intracellular stain reagent containing a viral probe molecule [e.g., p24 protein or p24 mRNA]; a buffer; and a cell permeabilizer.
Aspect 6. The method of Aspect 1, wherein the intracellular stain formulation comprises a fluorescent-labeled oligo nucleotide probe.
Aspect 7. The method of Aspect 1, wherein at least one disease diagnosis is selected from: a blood cancer, an infectious disease, an autoimmune disease, a primary immunodeficiency (PID), a genetic disease, a benign urinary tract disease or condition, a urinary tract cancer, or a malignant disease.
Aspect 8. The method of Aspect 1, further comprising reporting the at least one disease diagnosis remotely with a communication device.
Aspect 9. The method of Aspect 1, wherein the intracellular stain formulation comprises an intracellular stain reagent containing a probe molecule; a buffer; and a cell permeabilizer.
Aspect 10. The method of Aspect 1, wherein the sample comprises a single cell.
Aspect 11. The method of Aspect 1, wherein the sample comprises whole blood.
Aspect 12. The method of Aspect 1, wherein at least one cell comprises a white blood cell, a red blood cell, a granulocyte, or a combination thereof.
Aspect 13. The method of Aspect 1, wherein contacting the sample with the formulation and the resulting chemical interaction with the biomarker is accomplished in a single step.
Aspect 14. The method of Aspect 1, wherein at least one of:
Aspect 15. The method of Aspect 1, wherein contacting the sample with the formulation and the resulting chemical interaction with the biomarker is accomplished in a single step.
Aspect 16. The method of Aspect 1, wherein at least one of:
Aspect 17. The method of Aspect 1, wherein the sample is a fresh crude biological sample selected from a needle biopsy, whole blood, urine, sputum, saliva, a swab sample (e.g., a pap smear), sweat, breath, breast milk, bile, or results from pathological process (such as blister or cyst fluid).
Aspect 18. The method of Aspect 1, wherein the presence of the targeted intracellular biomarker is indicative of the presence of at least one disease.
Aspect 19. The method of Aspect 1, wherein the presence and quantity of the targeted intracellular biomarker is more indicative than not of the presence of at least one disease.
Aspect 20. The method of Aspect 1, wherein the presence and quantity of the targeted intracellular biomarker is more indicative of the at least one disease and provides at least one disease diagnosis selected from the database of correlated biomarker and disease combinations.
Aspect 21. The method of Aspect 1, wherein the biomarker is indicative of at least one disease selected from an infectious disease, malignant disease, autoimmune disease, a metabolic disease, an inherited genetic disorder disease; or a combination thereof.
Aspect 22. The method of Aspect 1, wherein the intracellular biomarker is selected from a specific nucleic acid, a specific protein, or mixture thereof.
Aspect 23. A method for correlating a measured intracellular biomarker in a first cell with a measured diseased second cell or an organism having the diseased second cell, comprising:
This application is a National Stage entry (§ 371) application of International Application No. PCT/US2020/066499, filed on Dec. 21, 2020, which claims the benefit of priority of U.S. Provisional Patent Application No. 62/951,949, filed on Dec. 20, 2019, the contents of which are relied upon and incorporated herein by reference in their entirety. The entire disclosure of any publication or patent document mentioned herein is entirely incorporated by reference.
Filing Document | Filing Date | Country | Kind |
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PCT/US2020/066499 | 12/21/2020 | WO |
Number | Date | Country | |
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62951949 | Dec 2019 | US |