Patent Application
20130164256
1. Field of the Invention
TNF-α binding proteins and their uses in the prevention and/or treatment of acute and chronic immunological diseases are provided.
2. Background of the Invention
There is a need in the art for improved binding proteins capable of binding TNF-α (also referred to as tumor necrosis factor, tumor necrosis factor-alpha, tumor necrosis factor-α, TNF, and cachectin). Provided are a novel family of binding proteins, CDR grafted binding proteins, humanized binding proteins, and fragments thereof, capable of binding TNF-α with high affinity and neutralizing TNF-α.
TNF-α binding proteins, or antigen-binding portions thereof, that bind TNF-α are provided. In an embodiment, the antigen binding domain comprises the VH region chosen from any one of SEQ ID NOs: 22, 24, 26, 28, 30, 32, 34-58, 74-83, 94-266, 478-486, 496-675, 738-762, 778-956, 1053-1062, 1073, 1075, and 1077, or one, two, or three CDRs therefrom. In another embodiment, the antigen binding domain comprises the VL region chosen from any one of SEQ ID NOs: 23, 25, 27, 29, 31, 33, 59-73, 84-93, 267-477, 487-495, 676-737, 763-777, 957-1052, 1063-1072, 1074, 1076, and 1078, or one, two, or three CDRs therefrom. In a particular embodiment, the antigen binding domain comprises a VH region and a VL region, for example, wherein the VH region comprises SEQ ID NOs: 22, 24, 26, 28, 30, 32, 34-58, 74-83, 94-266, 478-486, 496-675, 738-762, 778-956, 1053-1062, 1073, 1075, and 1077, or one, two, or three CDRs therefrom, and the VL region comprises SEQ ID NOs: 23, 25, 27, 29, 31, 33, 59-73, 84-93, 267-477, 487-495, 676-737, 763-777, 957-1052, 1063-1072, 1074, 1076, and 1078, or one, two, or three CDRs therefrom.
In an embodiment, the binding protein binds TNF-α. In another embodiment, the binding protein modulates a biological function of TNF-α. In another embodiment, the binding protein neutralizes TNF-α. In yet another embodiment, the binding protein diminishes the ability of TNF-α to bind to its receptor, for example, the binding protein diminishes the ability of pro-human TNF-α, mature-human TNF-α, or truncated-human TNF-α to bind to its receptor. In yet another embodiment, the binding protein reduces one or more TNF-α biological activities selected from: TNF-dependent cytokine production; TNF-dependent cell killing; TNF-dependent inflammation; TNF-dependent bone erosion; and TNF-dependent cartilage damage.
In an embodiment, the binding protein has an on rate constant (Kon) selected from: at least about 102 M−1s−1; at least about 103 M−1s−1; at least about 104 M−1s−1; at least about 105 M−1s−1; and at least about 106 M−1s−1; as measured by surface plasmon resonance. In another embodiment, the binding protein has an off rate constant (Koff) selected from: at most about 10−3 s−1; at most about 10−4 s−1; at most about 10−5 s−1; and at most about 10−6 s−1, as measured by surface plasmon resonance. In yet another embodiment, the binding protein has a dissociation constant (KD) selected from: at most about 10−7 M; at most about 10−8 M; at most about 10−9 M; at most about 10−10 M; at most about 10−11 M; at most about 10−12 M; and at most 10−13 M.
In another aspect, a method for treating a mammal is provided comprising administering to the mammal an effective amount of the pharmaceutical composition disclosed herein. In another embodiment, a method for reducing human TNF-α activity is provided, the method comprising: contacting human TNF-α with the binding protein disclosed herein such that human TNF-α activity is reduced. In another embodiment, provided is a method for reducing human TNF-α activity in a human subject suffering from a disorder in which TNF-α activity is detrimental, the method comprising administering to the human subject the binding protein disclosed herein such that human TNF-α activity in the human subject is reduced. In another embodiment, provided is a method for treating a subject for a disease or a disorder in which TNF-α activity is detrimental, the method comprising administering to the subject the binding protein disclosed herein such that treatment is achieved.
In one embodiment, the method treats diseases involving immune and inflammatory elements, such as autoimmune diseases, particularly those associated with inflammation, including Crohn's disease, psoriasis (including plaque psoriasis), arthritis (including rheumatoid arthritis, psoratic arthritis, osteoarthritis, or juvenile idiopathic arthritis), multiple sclerosis, and ankylosing spondylitis. Therefore, the binding proteins herein may be used to treat these disorders.
Provided are TNF-α binding proteins, or antigen-binding portions thereof, that bind TNF-α, pharmaceutical compositions thereof, as well as nucleic acids, recombinant expression vectors and host cells for making such binding proteins and fragments. Also provided are methods of using the binding proteins disclosed herein to detect human TNF-α, to inhibit human TNF-α either in vitro or in vivo, and to regulate gene expression or TNF-α related functions.
Unless otherwise defined herein, scientific and technical terms used in connection with the present disclosure shall have the meanings that are commonly understood by those of ordinary skill in the art. The meaning and scope of the terms should be clear, however, in the event of any latent ambiguity, definitions provided herein take precedent over any dictionary or extrinsic definition. Further, unless otherwise required by context, singular terms shall include pluralities and plural terms shall include the singular. In this application, the use of “or” means “and/or”, unless stated otherwise. Furthermore, the use of the term “including”, as well as other forms of the term, such as “includes” and “included”, is not limiting. Also, terms such as “element” or “component” encompass both elements and components comprising one unit and elements and components that comprise more than one subunit unless specifically stated otherwise.
Generally, nomenclatures used in connection with, and techniques of, cell and tissue culture, pathology, oncology, molecular biology, immunology, microbiology, genetics and protein and nucleic acid chemistry and hybridization described herein are those well known and commonly used in the art. The methods and techniques of the present disclosure are generally performed according to conventional methods well known in the art and as described in various general and more specific references that are cited and discussed throughout the present specification unless otherwise indicated. See, e.g., Sambrook et al. Molecular Cloning: A Laboratory Manual (2d ed., Cold Spring Harbor Laboratory Press, Cold Spring Harbor, N.Y. (1989)). Enzymatic reactions and purification techniques are performed according to manufacturer's specifications, as commonly accomplished in the art or as described herein. The nomenclatures used in connection with, and the laboratory procedures and techniques of, analytical chemistry, synthetic organic chemistry, and medicinal and pharmaceutical chemistry described herein are those well known and commonly used in the art. Standard techniques are used for chemical syntheses, chemical analyses, pharmaceutical preparation, formulation, and delivery, and treatment of patients.
The term “human TNF-α” (abbreviated herein as hTNF-α) includes a trimeric cytokine protein. The term includes a homotrimeric protein comprising three 17.5 kD TNF-α proteins. The homotrimeric protein is referred to as a “TNF-α protein”. The term human “TNF-α” is intended to include recombinant human TNF-α (rhTNF-α), which can be prepared by standard recombinant expression methods. The sequence of human TNF-α is shown in Table 1.
The term “antibody”, broadly refers to any immunoglobulin (Ig) molecule, or antigen binding portion thereof, comprised of four polypeptide chains, two heavy (H) chains and two light (L) chains, or any functional fragment, mutant, variant, or derivation thereof, which retains the essential epitope binding features of an Ig molecule. Such mutant, variant, or derivative antibody formats are known in the art.
In a full-length antibody, each heavy chain is comprised of a heavy chain variable region (abbreviated herein as HCVR or VH) and a heavy chain constant region. The heavy chain constant region is comprised of three domains, CH1, CH2 and CH3. Each light chain is comprised of a light chain variable region (abbreviated herein as LCVR or VL) and a light chain constant region. The light chain constant region is comprised of one domain, CL. The VH and VL regions can be further subdivided into regions of hypervariability, termed complementarity determining regions (CDR), interspersed with regions that are more conserved, termed framework regions (FR). Each VH and VL is composed of three CDRs and four FRs, arranged from amino-terminus to carboxy-terminus in the following order: FR1, CDR1, FR2, CDR2, FR3, CDR3, FR4. Immunoglobulin molecules can be of any type (e.g., IgG, IgE, IgM, IgD, IgA and IgY), class (e.g., IgG 1, IgG2, IgG 3, IgG4, IgA1 and IgA2) or subclass.
The term “antigen-binding portion” or “antigen-binding region” of a binding protein (or simply “binding protein portion”), refers to one or more fragments of a binding protein that retain the ability to specifically bind to an antigen (e.g., hTNF-α). The antigen-binding function of a binding protein can be performed by fragments of a full-length binding protein. Such binding protein embodiments may also have bispecific, dual specific, or multi-specific formats; specifically binding to two or more different antigens. Examples of binding fragments encompassed within the term “antigen-binding portion” of a binding protein include (i) a Fab fragment, a monovalent fragment consisting of the VL, VH, CL and CH1 domains; (ii) a F(ab′)2 fragment, a bivalent fragment comprising two Fab fragments linked by a disulfide bridge at the hinge region; (iii) a Fd fragment consisting of the VH and CH1 domains; (iv) a Fv fragment consisting of the VL and VH domains of a single arm of an antibody, (v) a dAb fragment (Ward et al. (1989) Nature 341:544-546, Winter et al., PCT publication WO 90/05144 A1), which comprises a single variable domain; and (vi) an isolated complementarity determining region (CDR). Furthermore, although the two domains of the Fv fragment, VL and VH, are coded for by separate genes, they can be joined, using recombinant methods, by a synthetic linker that enables them to be made as a single protein chain in which the VL and VH regions pair to form monovalent molecules (known as single chain Fv (scFv); see, e.g., Bird et al. (1988) Science 242:423-426; and Huston et al. (1988) Proc. Natl. Acad. Sci. USA 85:5879-5883). Such single chain binding proteins are also intended to be encompassed within the term “antigen-binding portion” of a binding protein. Other forms of single chain binding proteins, such as diabodies are also encompassed. Diabodies are bivalent, bispecific binding proteins in which VH and VL domains are expressed on a single polypeptide chain, but using a linker that is too short to allow for pairing between the two domains on the same chain, thereby forcing the domains to pair with complementary domains of another chain and creating two antigen binding sites (see, e.g., Holliger, et al. (1993) Proc. Natl. Acad. Sci. USA 90:6444-6448; Poljak, et al. (1994) Structure 2:1121-1123).
The term “binding protein” refers to a polypeptide comprising one or more antigen-binding portions disclosed herein optionally linked to a linker polypeptide or a constant domain. Linker polypeptides comprise two or more amino acid residues joined by peptide bonds and are used to link one or more antigen binding portions. Such linker polypeptides are well known in the art (see e.g., Holliger, et al. (1993) Proc. Natl. Acad. Sci. USA 90:6444-6448; Poljak, et al. (1994) Structure 2:1121-1123). A constant domain refers to a heavy or light chain constant domain. Human IgG heavy chain and light chain constant domain amino acid sequences are known in the art and represented in Table 2.
A binding protein, or antigen-binding portion thereof, may be part of a larger immunoadhesion molecule, formed by covalent or noncovalent association of the binding protein or binding protein portion with one or more other proteins or peptides. Examples of such immunoadhesion molecules include use of the streptavidin core region to make a tetrameric scFv molecule (Kipriyanov, et al. (1995) Hum. Antibod. Hybridomas 6:93-101) and use of a cysteine residue, a marker peptide and a C-terminal polyhistidine tag to make bivalent and biotinylated scFv molecules (Kipriyanov, et al. (1994) Mol. Immunol. 31:1047-1058). Antibody portions, such as Fab and F(ab′)2 fragments, can be prepared from whole antibodies using conventional techniques, such as papain or pepsin digestion, respectively, of whole antibodies. Moreover, binding proteins, binding protein portions and immunoadhesion molecules can be obtained using standard recombinant DNA techniques, as described herein.
An “isolated binding protein” refers to a binding protein, or antigen-binding portion thereof, that is substantially free of other binding proteins having different antigenic specificities (e.g., an isolated binding protein that specifically binds hTNF-α is substantially free of binding proteins that specifically bind antigens other than hTNF-α). An isolated binding protein that specifically binds hTNF-α may, however, have cross-reactivity to other antigens, such as TNF-α molecules from other species. Moreover, an isolated binding protein may be substantially free of other cellular material and/or chemicals.
The term “human binding protein” includes binding proteins, or antigen-binding portion thereof, that having variable and constant regions derived from human germline immunoglobulin sequences. The human binding proteins disclosed herein may include amino acid residues not encoded by human germline immunoglobulin sequences (e.g., mutations introduced by random or site-specific mutagenesis in vitro or by somatic mutation in vivo), for example in the CDRs and in particular CDR3. However, the term “human binding protein”, is not intended to include binding proteins in which CDR sequences derived from the germline of another mammalian species, such as a mouse, have been grafted onto human framework sequences.
The terms “Kabat numbering”, “Kabat definitions” and “Kabat labeling” are used interchangeably herein. These terms, which are recognized in the art, refer to a system of numbering amino acid residues which are more variable (i.e., hypervariable) than other amino acid residues in the heavy and light chain variable regions of an antibody, or an antigen binding portion thereof (Kabat et al. (1971) Ann. NY Acad. Sci. 190:382-391 and Kabat, et al. (1991) Sequences of Proteins of Immunological Interest, Fifth Edition, U.S. Department of Health and Human Services, NIH Publication No. 91-3242). See also, Martin, “Protein Sequence and Structure Analysis of Antibody Variable Domains,” In Kontermann and Dübel, eds., Antibody Engineering (Springer-Verlag, Berlin, 2001), Chapter 31, especially pages 432-433. For the heavy chain variable region, the hypervariable region ranges from amino acid positions 31 to 35 for CDR1, amino acid positions 50 to 65 for CDR2, and amino acid positions 95 to 106 for CDR3. For the light chain variable region, the hypervariable region ranges from amino acid positions 24 to 34 for CDR1, amino acid positions 50 to 56 for CDR2, and amino acid positions 89 to 97 for CDR3.
The term “CDR” refers to the complementarity determining region within antibody variable sequences. There are three CDRs in each of the variable regions of the heavy chain and the light chain, which are designated CDR1, CDR2 and CDR3, for each of the variable regions. The term “CDR set” refers to a group of three CDRs that occur in a single variable region capable of binding the antigen. The exact boundaries of these CDRs have been defined differently according to different systems. The system described by Kabat (Kabat et al., Sequences of Proteins of Immunological Interest (National Institutes of Health, Bethesda, Md. (1987) and (1991)) not only provides an unambiguous residue numbering system applicable to any variable region of an antibody, but also provides precise residue boundaries defining the three CDRs. These CDRs may be referred to as Kabat CDRs. Chothia and coworkers (Chothia and Lesk (1987) J. Mol. Biol. 196:901-917) and Chothia et al. (1989) Nature 342:877-883) found that certain sub-portions within Kabat CDRs adopt nearly identical peptide backbone conformations, despite having great diversity at the level of amino acid sequence. These sub-portions were designated as L1, L2 and L3 or H1, H2 and H3 where the “L” and the “H” designates the light chain and the heavy chains regions, respectively. These regions may be referred to as Chothia CDRs, which have boundaries that overlap with Kabat CDRs. Other boundaries defining CDRs overlapping with the Kabat CDRs have been described by Padlan (1995) FASEB J. 9:133-139 and MacCallum (1996) J. Mol. Biol. 262(5):732-745. Still other CDR boundary definitions may not strictly follow one of the above systems, but will nonetheless overlap with the Kabat CDRs, although they may be shortened or lengthened in light of prediction or experimental findings that particular residues or groups of residues or even entire CDRs do not significantly impact antigen binding. The methods used herein may utilize CDRs defined according to any of these systems, although particular embodiments use Kabat or Chothia defined CDRs.
Human heavy chain and light chain acceptor sequences are known in the art. In one embodiment of the disclosure the human heavy chain and light chain acceptor sequences are selected from the sequences listed from V-base (hvbase.mrc-cpe.cam.ac.uk/) or from IMGT®, the international ImMunoGeneTics information system® (himgt.cines.fr/textes/IMGTrepertoire/LocusGenes/). In another embodiment of the disclosure the human heavy chain and light chain acceptor sequences are selected from the sequences described in Table 3 and Table 4, respectively.
The term “multivalent binding protein” is used in this specification to denote a binding protein comprising two or more antigen binding sites. The multivalent binding protein may be engineered to have the three or more antigen binding sites, and is generally not a naturally occurring antibody. The term “multispecific binding protein” refers to a binding protein capable of binding two or more related or unrelated targets. Dual variable domain (DVD) binding proteins or immunoglobulins (DVD-Ig) as used herein, are binding proteins that comprise two or more antigen binding sites and are tetravalent or multivalent binding proteins. Such DVD-binding proteins may be monospecific, i.e., capable of binding one antigen or multispecific, i.e., capable of binding two or more antigens. DVD-binding proteins comprising two heavy chain DVD-Ig polypeptides and two light chain DVD-Ig polypeptides are referred to a DVD-Ig. Each half of a DVD-Ig comprises a heavy chain DVD-Ig polypeptide, and a light chain DVD-Ig polypeptide, and two antigen binding sites. Each binding site comprises a heavy chain variable domain and a light chain variable domain with a total of 6 CDRs involved in antigen binding per antigen binding site. DVD binding proteins and methods of making DVD binding proteins are disclosed in U.S. Pat. No. 7,612,181.
One aspect of the disclosure pertains to a DVD binding protein comprising binding proteins capable of binding TNF-α. In a particular embodiment, the DVD binding protein is capable of binding TNF-α and a second target.
The term “neutralizing” refers to neutralization of a biological activity of a cytokine when a binding protein specifically binds the cytokine. In a particular embodiment, binding of a neutralizing binding protein to hTNF-α results in inhibition of a biological activity of hTNF-α, e.g., the neutralizing binding protein binds hTNF-α and reduces a biologically activity of hTNF-α by at least about 20%, 40%, 60%, 80%, 85% or more Inhibition of a biological activity of hTNF-α by a neutralizing binding protein can be assessed by measuring one or more indicators of hTNF-α biological activity well known in the art. For example neutralization of the cytoxicity of TNF-α on L929 cells.
In another embodiment, the terms “agonist” or “agonizing” refer to an increase of a biological activity of TNF-α when a binding protein specifically binds TNF-α, e.g., hTNF-α. In a particular embodiment, binding of an agonizing binding protein to TNF-α results in the increase of a biological activity of TNF-α. In a particular embodiment, the agonistic binding protein binds TNF-α and increases a biologically activity of TNF-α by at least about 20%, 40%, 60%, 80%, 85%, 90%, 95, 96%, 97%, 98%, 99%, and 100%. An inhibition of a biological activity of TNF-α by an agonistic binding protein can be assessed by measuring one or more indicators of TNF-α biological activity well known in the art.
The term “activity” includes activities such as the binding specificity/affinity of a binding protein for an antigen, for example, a hTNF-α binding protein that binds to a TNF-α antigen and/or the neutralizing potency (or agonizing potency) of a binding protein, for example, a hTNF-α binding protein whose binding to hTNF-α inhibits the biological activity of hTNF-α, e.g., neutralization of the cytoxicity of TNF-α on L929 cells.
The term “surface plasmon resonance” refers to an optical phenomenon that allows for the analysis of real-time bio specific interactions by detection of alterations in protein concentrations within a biosensor matrix, for example using the BIAcore system (Pharmacia Biosensor AB, Uppsala, Sweden and Piscataway, N.J.).
The term “Kon” refers to the on rate constant for association of a binding protein (e.g., an antibody) to the antigen to form, e.g., the antibody/antigen complex as is known in the art. The “Kon” also is known by the terms “association rate constant”, or “ka”, as used interchangeably herein. This value indicating the binding rate of an antibody to its target antigen or the rate of complex formation between an antibody and antigen also is shown by the equation below:
Antibody (“Ab”)+Antigen (“Ag”)→Ab−Ag
The term “Koff” refers to the off rate constant for dissociation, or “dissociation rate constant”, of a binding protein (e.g., an antibody), from the, e.g., antibody/antigen complex as is known in the art. This value indicates the dissociation rate of an antibody from its target antigen or separation of Ab−Ag complex over time into free antibody and antigen as shown by the equation below:
Ab+Ag←Ab−Ag
The term “KD” refers to the “equilibrium dissociation constant” and refers to the value obtained in a titration measurement at equilibrium, or by dividing the dissociation rate constant (Koff) by the association rate constant (Kon). The association rate constant, the dissociation rate constant and the equilibrium dissociation constant are used to represent the binding affinity of an antibody to an antigen. Methods for determining association and dissociation rate constants are well known in the art. Using fluorescence-based techniques offers high sensitivity and the ability to examine samples in physiological buffers at equilibrium. Other experimental approaches and instruments such as a BIAcore® (biomolecular interaction analysis) assay can be used (e.g., instrument available from BIAcore International AB, a GE Healthcare company, Uppsala, Sweden). Additionally, a KinExA® (Kinetic Exclusion Assay) assay, available from Sapidyne Instruments (Boise, Id.) can also be used.
I. Binding Proteins that Bind Human TNF-α
One aspect of the present disclosure provides isolated fully-human anti-human TNF binding proteins, such as monoclonal antibodies, or antigen-binding portions thereof, that bind to TNF-α with high affinity, a slow off rate and high neutralizing capacity. A second aspect of the disclosure provides affinity-matured fully-human anti-TNF binding proteins, such as monoclonal antibodies, or antigen-binding portions thereof, that bind to TNF-α with high affinity, a slow off rate and high neutralizing capacity.
A. Method of Making TNF-α Binding Proteins
The binding proteins disclosed herein may be made by any of a number of techniques known in the art.
1. Anti-TNF-α Monoclonal Antibodies Using Transgenic Animals
In another embodiment of the disclosure, binding proteins are produced by immunizing a non-human animal comprising some, or all, of the human immunoglobulin locus with a TNF-α antigen. In a particular embodiment, the non-human animal is a XENOMOUSE transgenic mouse, an engineered mouse strain that comprises large fragments of the human immunoglobulin loci and is deficient in mouse antibody production. See, e.g., Green et al. (1994) Nature Genet. 7:13-21 and U.S. Pat. Nos. 5,916,771; 5,939,598; 5,985,615; 5,998,209; 6,075,181; 6,091,001; 6,114,598 and 6,130,364. See also PCT Publications WO 91/10741, published Jul. 25,1991; WO 94/02602, published Feb. 3, 1994; WO 96/34096 and WO 96/33735, both published Oct. 31, 1996; WO 98/16654, published Apr. 23, 1998; WO 98/24893, published Jun. 11, 1998; WO 98/50433, published Nov. 12, 1998; WO 99/45031, published Sep. 10, 1999; WO 99/53049, published Oct. 21, 1999; WO 00/09560, published Feb. 24, 2000; and WO 00/37504, published Jun. 29, 2000. The XENOMOUSE transgenic mouse produces an adult-like human repertoire of fully human antibodies, and generates antigen-specific human Mabs. The XENOMOUSE transgenic mouse contains approximately 80% of the human antibody repertoire through introduction of megabase sized, germline configuration YAC fragments of the human heavy chain loci and x light chain loci. See, Mendez et al. (1997) Nature Genet. 15:146-156; Green and Jakobovits (1998) J. Exp. Med. 188:483-495.
2. Anti-TNF-α Monoclonal Antibodies Using Recombinant Antibody Libraries
In vitro methods also can be used to make the binding protein disclosed herein, wherein an antibody library is screened to identify an antibody having the desired binding specificity. Methods for such screening of recombinant antibody libraries are well known in the art and include methods described in, for example, U.S. Pat. No. 5,223,409; PCT Publications WO 92/18619; WO 91/17271; WO 92/20791; WO 92/15679; WO 93/01288; WO 92/01047; WO 92/09690; and WO 97/29131; Fuchs et al. (1991) Bio/Technology 9:1369-1372; Hay et al. (1992) Hum. Antibod. Hybridomas 3:81-85; Huse et al. (1989) Science 246:1275-1281; McCafferty et al. (1990) Nature 348:552-554; Griffiths et al. (1993) EMBO J. 12:725-734; Hawkins et al. (1992) J. Mol. Biol. 226:889-896; Clackson et al. (1991) Nature 352:624-628; Gram et al. (1992) Proc. Natl. Acad. Sci. USA 89:3576-3580; Garrard et al. (1991) Bio/Technology 9:1373-1377; Hoogenboom et al. (1991) Nucl. Acid Res. 19:4133-4137; and Barbas et al. (1991) Proc. Natl. Acad. Sci. USA 88:7978-7982; and U.S. Patent Publication No. 2003.0186374.
The recombinant antibody library may be from a subject immunized with TNF-α, or a portion of TNF-α. Alternatively, the recombinant antibody library may be from a naïve subject, i.e., one who has not been immunized with TNF-α, such as a human antibody library from a human subject who has not been immunized with human TNF-α. Antibodies disclosed herein are selected by screening the recombinant antibody library with the peptide comprising human TNF-α to thereby select those antibodies that recognize TNF-α. Methods for conducting such screening and selection are well known in the art, such as described in the references in the preceding paragraph. To select antibodies disclosed herein having particular binding affinities for hTNF-α, such as those that dissociate from human TNF-α with a particular koff rate constant, the art-known method of surface plasmon resonance can be used to select antibodies having the desired koff rate constant. To select antibodies disclosed herein having a particular neutralizing activity for hTNF-α, such as those with a particular an IC50, standard methods known in the art for assessing the inhibition of hTNF-α activity may be used.
In one aspect, provided is an isolated binding protein, or an antigen-binding portion thereof, that binds TNF-α, e.g., human TNF-α. In a particular embodiment, the binding protein is a neutralizing binding protein. In various embodiments, the binding protein is a recombinant binding protein or a monoclonal antibody.
For example, the binding proteins disclosed herein can also be generated using various phage display methods known in the art. In phage display methods, functional antibody domains are displayed on the surface of phage particles which carry the polynucleotide sequences encoding them. In a particular, such phage can be utilized to display antigen-binding domains expressed from a repertoire or combinatorial antibody library (e.g., human or murine). Phage expressing an antigen binding domain that binds the antigen of interest can be selected or identified with antigen, e.g., using labeled antigen or antigen bound or captured to a solid surface or bead. Phage used in these methods are typically filamentous phage including fd and M13 binding domains expressed from phage with Fab, Fv or disulfide stabilized Fv antibody domains recombinantly fused to either the phage gene III or gene VIII protein. Examples of phage display methods that can be used to make the binding proteins disclosed herein can be found in the art.
As described in the above references, after phage selection, the binding protein coding regions from the phage can be isolated and used to generate whole binding proteins including human binding protein or any other desired antigen binding fragment, and expressed in any desired host, including mammalian cells, insect cells, plant cells, yeast, and bacteria, e.g., as described in detail below. For example, techniques to recombinantly produce Fab, Fab′ and F(ab′)2 fragments can also be employed using methods known in the art such as those disclosed in PCT Publication WO 92/22324; Mullinax et al. (1992) BioTechniques 12(6):864-869; and Sawai et al. (1995) Am. J. Reprod. Immunol. 34:26-34; and Better et al. (1998) Science 240:1041-1043. Examples of techniques which can be used to produce single-chain Fvs and antibodies include those described in U.S. Pat. Nos. 4,946,778 and 5,258,498; Huston et al. (1991) Methods Enzymol. 203:46-88; Shu et al. (1993) Proc. Natl. Acad Sci. USA 90:7995-7999; and Skerra et al. (1998) Science 240:1038-1041.
Alternative to screening of recombinant antibody libraries by phage display, other methodologies known in the art for screening large combinatorial libraries can be applied to the identification of dual specificity binding protein disclosed herein. One type of alternative expression system is one in which the recombinant antibody library is expressed as RNA-protein fusions, as described in PCT Publication No. WO 98/31700 and in Roberts and Szostak (1997) Proc. Natl. Acad. Sci. USA 94:12297-12302. In this system, a covalent fusion is created between an mRNA and the peptide or protein that it encodes by in vitro translation of synthetic mRNAs that carry puromycin, a peptidyl acceptor antibiotic, at their 3′ end. Thus, a specific mRNA can be enriched from a complex mixture of mRNAs (e.g., a combinatorial library) based on the properties of the encoded peptide or protein, e.g., antibody, or portion thereof, such as binding of the antibody, or portion thereof, to the dual specificity antigen. Nucleic acid sequences encoding antibodies, or portions thereof, recovered from screening of such libraries can be expressed by recombinant means as described above (e.g., in mammalian host cells) and, moreover, can be subjected to further affinity maturation by either additional rounds of screening of mRNA-peptide fusions in which mutations have been introduced into the originally selected sequence(s), or by other methods for affinity maturation in vitro of recombinant antibodies, as described above.
In another approach the binding proteins disclosed herein can also be generated using yeast display methods known in the art. In yeast display methods, genetic methods are used to tether antibody domains to the yeast cell wall and display them on the surface of yeast. In particular, such yeast can be utilized to display antigen-binding domains expressed from a repertoire or combinatorial antibody library (e.g., human or murine). Examples of yeast display methods that can be used to make the binding proteins disclosed herein include those disclosed Wittrup et al. U.S. Pat. No. 6,699,658 and Frenken et al., U.S. Pat. No. 6,114,147.
B. Production of Recombinant TNF-α Binding Proteins
Binding proteins disclosed herein may be produced by any of a number of techniques known in the art. For example, expression from host cells, wherein expression vector(s) encoding the heavy and light chains is (are) transfected into a host cell by standard techniques. The various forms of the term “transfection” are intended to encompass a wide variety of techniques commonly used for the introduction of exogenous DNA into a prokaryotic or eukaryotic host cell, e.g., electroporation, calcium-phosphate precipitation, DEAE-dextran transfection and the like. Although it is possible to express the binding proteins disclosed herein in either prokaryotic or eukaryotic host cells, expression of binding protein in eukaryotic cells is contemplated, for example, in mammalian host cells, because such eukaryotic cells (and in particular mammalian cells) are more likely than prokaryotic cells to assemble and secrete a properly folded and immunologically active binding protein.
Mammalian host cells for expressing the recombinant binding proteins disclosed herein include Chinese Hamster Ovary (CHO cells) (including dhfr- CHO cells, described in Urlaub and Chasin (1980) Proc. Natl. Acad. Sci. USA 77:4216-4220, used with a DHFR selectable marker, e.g., as described in Kaufman and Sharp (1982) J. Mol. Biol. 159:601-621), NS0 myeloma cells, COS cells and SP2 cells. When recombinant expression vectors encoding binding protein genes are introduced into mammalian host cells, the binding proteins are produced by culturing the host cells for a period of time sufficient to allow for expression of the binding protein in the host cells or, in particular, secretion of the antibody into the culture medium in which the host cells are grown. Antibodies can be recovered from the culture medium using standard protein purification methods.
Host cells can also be used to produce functional binding protein fragments, such as Fab fragments or scFv molecules. It will be understood that variations on the above procedure are within the scope of the present disclosure. For example, it may be desirable to transfect a host cell with DNA encoding functional fragments of either the light chain and/or the heavy chain of a binding protein disclosed herein. Recombinant DNA technology may also be used to remove some, or all, of the DNA encoding either or both of the light and heavy chains that is not necessary for binding to the antigens of interest. The molecules expressed from such truncated DNA molecules are also encompassed by the binding proteins disclosed herein. In addition, bifunctional binding proteins may be produced in which one heavy and one light chain are a binding protein disclosed herein and the other heavy and light chain are specific for an antigen other than the antigens of interest by crosslinking a binding protein disclosed herein to a second binding protein by standard chemical crosslinking methods.
In an exemplary system for recombinant expression of a binding protein, or antigen-binding portion thereof, disclosed herein, a recombinant expression vector encoding both the heavy chain and the light chain is introduced into dhfr CHO cells by calcium phosphate-mediated transfection. Within the recombinant expression vector, the heavy and light chain genes are each operatively linked to CMV enhancer/AdMLP promoter regulatory elements to drive high levels of transcription of the genes. The recombinant expression vector also carries a DHFR gene, which allows for selection of CHO cells that have been transfected with the vector using methotrexate selection/amplification. The selected transformant host cells are cultured to allow for expression of the heavy and light chains and intact binding protein is recovered from the culture medium. Standard molecular biology techniques are used to prepare the recombinant expression vector, transfect the host cells, select for transformants, culture the host cells and recover the binding protein from the culture medium. Still further a method of synthesizing a recombinant binding protein disclosed herein is provided by culturing a host cell disclosed herein in a suitable culture medium until a recombinant binding protein disclosed herein is synthesized. The method can further comprise isolating the recombinant binding protein from the culture medium.
II. hTNF-α Binding Proteins
A. Individual Clone Sequences
Table 5 provides the VH and VL sequences of fully human anti-human TNF binding proteins, including CDRs from each VH and VL sequence.
SYDVNWVRQATGQGLEWMGWMNPNSGNTGY
AQKFQGRVTITADESTSTAYMELSSLRSED
SYDVN
WMNPNSGNTGYAQKFQG
FDSDYMDV
YAYWYQQKPGQAPVLVIYKDTERPSGIPER
DSSGTSWVFGGGTKLTVL
SGDALPKQYAY
KDTERPS
SADSSGTSWV
SYAISWVRQAPGQGLEWMGGIIPILGTANY
AQKFLGRVTITADESTSTVYMELSSLRSED
SYAIS
GIIPILGTANYAQKFLG
GLYYDPTRADY
SSLHWYQQKPDQSPKLLIRHASQSISGVPS
SSSSPPPTFGQGTQVEIK
RASQSIGSSLH
HASQSIS
HQSSSSPPPT
NYWMSWVRQAPGKGLEWVANINHDESEKYY
VDSAKGRFTISRDNAEKSLFLQMNSLRAED
NYWMS
NINHDESEKYYVDSAKG
IIRGRVGFDYYNYAMDV
NYLNWYQHKPGKAPKLLIYAASSLQSGVPS
SYSLIFAGGTKVEIK
RASQSIGNYLN
AASSLQS
QESYSLI
NYDINWVRQPTGQGLEWMGWMDPNNGNTGY
AQKFVGRVTMTRDTSKTTAYLELSGLKSED
NYDIN
WMDPNNGNTGYAQKFVG
KSSGSGGTWYKEYFQS
HSNGYNYLDWYLQKPGQFPQLLIYLGSYRA
SGVPDRFSGSGSGTDFTLKISRVEAEDVGV
RSSQSLLHSNGYNYLD
LGSYRAS
MQRIEFPPGT
QYPIHWVRQAPGQRPEWMGWISPGNGNTKL
SPKFQGRVTLSRDASAGTVFMDLSGLTSDD
QYPIH
WISPGNGNTKLSPKFQG
VDLGDH
SSLHWYQQKPDQSPKLLINYASQSFSGVPS
SSNLPITFGQGTRLEIK
RASQSIGSSLH
YASQSFS
HQSSNLPIT
DYPMHWVRQAPGEGLEWVSGISSNSASIGY
ADSVKGRFTISRDNAQNTLYLQMNSLGDED
DYPMH
GISSNSASIGYADSVKG
LTLG
NYLHWYQQKPGKAPKLLIYAASSLQSGVPS
SYSTLYSFGQGTKLEIK
RASQSIGNYLH
AASSLQS
QQSYSTLYS
B. IgG Converted Clones
Table 6 provides the VH sequence of humanized anti-TNF MAK-195 antibodies that were converted into IgG clones as discussed in detail in Example 2.
NYGVNWVRQAPGKGLEWVSMIAADGFTDYA
SSVKGRFTISRDNSKNTLYLQMNSLRAEDT
NYGVN
MIAADGFTDYASSVKG
EWHHGPVAY
NYGVSWVRQAPGKGLEWVSLIRGDGSTDYA
SSLKGRFTISRDNSKNTLYLQMNSLRAEDT
NYGVS
LIRGDGSTDYASSLKG
EWHHGPVAY
NYGVSWVRQAPGKGLEWVSMIWADGSTHYA
DTLKSRFTISRDNSKNTLYLQMNSLRAEDT
NYGVS
MIWADGSTHYADTLKS
EWQHGPVAY
NYGVTWVRQAPGKGLEWVSMIWADGSTDYA
DTVKGRFTISRDNSKNTLYLQMNSLRAEDT
NYGVT
MIWADGSTDYADTVKG
EWQHGPVAY
NYGVTWVRQAPGKGLEWVSMIWADGSTHYA
DSVKSRFTISRDNSKNTLYLQMNSLRAEDT
NYGVT
MIWADGSTHYADSVKS
EWQHGPLAY
NYGVTWVRQAPGKGLEWVSMIWSDGSTDYA
SSVKGRFTISRDNSKNTLYLQMNSLRAEDT
NYGVT
MIWSDGSTDYASSVKG
EWQHGPVAY
NYGVTWVRQAPGKGLEWVSMIWADGSTHYA
SSLKGRFTISRDNSKNTLYLQMNSLRAEDT
NYGVT
MIWADGSTHYASSLKG
EWQHGPAAY
NYGVSWVRQAPGKGLEWVSMIWADGSTHYA
SSLKGRFTISRDNSKNTLYLQMNSLRAEDT
NYGVS
MIWADGSTHYASSLKG
EWQHGPVAY
NYGVTWVRQAPGKGLEWVSMIWADGSTHYA
SSVKGRFTISRDNSKNTLYLQMNSLRAEDT
NYGVT
MIWADGSTHYASSVKG
EWQHGPAAY
NYGVTWVRQAPGKGLEWVSMIWADGSTHYA
SSVKGRFTISRDNSKNTLYLQMNSLRAEDT
NYGVT
MIWADGSTHYASSVKG
EWQHGPSAY
NYGVTWVRQAPGKGLEWVSMIWADGSTHYA
SSVKGRFTISRDNSKNTLYLQMNSLRAEDT
NYGVT
MIWADGSTHYASSVKG
EWQHGPVAY
NYGVEWVRQAPGKGLEWVSGIWADGSTHYA
DTVKSRFTISRDNSKNTLYLQMNSLRAEDT
NYGVE
GIWADGSTHYADTVKS
EWQHGPVAY
NYGVEWVRQAPGKGLEWVSGIWADGSTHYA
DTVKSRFTISRDNSKNTLYLQMNSLRAEDT
NYGVE
GIWADGSTHYADTVKS
EWQHGPVGY
NYGVEWVRQAPGKGLEWVSGIWADGSTHYA
DTVKSRFTISRDNSKNTLYLQMNSLRAEDT
NYGVE
GIWADGSTHYADTVKS
EWQHGPVGY
NYGVTWVRQAPGKGLEWVSMIWADGSTDYA
STVKGRFTISRDNSKNTLYLQMNSLRAEDT
NYGVT
MIWADGSTDYASTVKG
EWQHGPVGY
NYGVTWVRQAPGKGLEWVSMIWADGSTHYA
SSVKGRFTISRDNSKNTLYLQMNSLRAEDT
NYGVT
MIWADGSTHYASSVKG
EWQHGPVAY
NYGVTWVRQAPGKGLEWVSMIWADGSTHYA
DSVKSRFTISRDNSKNTLYLQMNSLRAEDT
NYGVT
MIWADGSTHYADSVKS
EWQHGPLAY
NYGVQWVRQAPGKGLEWVSGIGADGSTAYA
SSLKGRFTISRDNSKNTLYLQMNSLRAEDT
NYGVQ
GIGADGSTAYASSLKG
EWQHSGLAY
NYGVSWVRQAPGKGLEWVSMIWADGSTHYA
DTVKGRFTISRDNSKNTLYLQMNSLRAEDT
NYGVS
MIWADGSTHYADTVKG
EWQHGPLAY
NYGVTWVRQAPGKGLEWVSMIWADGSTHYA
DTVKGRFTISRDNSKNTLYLQMNSLRAEDT
NYGVT
MIWADGSTHYADTVKG
EWQHGPLAY
NYGVTWVRQAPGKGLEWVSMIWADGSTHYA
SSVKGRFTISRDNSKNTLYLQMNSLRAEDT
NYGVT
MIWADGSTHYASSVKG
EWQHGPVAY
NYGVTWVRQAPGKGLEWVSMIWADGSTHYA
SSVKGRFTISRDNSKNTLYLQMNSLRAEDT
NYGVT
MIWADGSTHYASSVKG
EWQHGPVAY
NYGVTWVRQAPGKGLEWVSMIWADGSTHYA
SSVKGRFTISRDNSKNTLYLQMNSLRAEDT
NYGVT
MIWADGSTHYASSVKG
EWQHGPVAY
NYGVTWVRQAPGKGLEWVSMIWADGSTHYA
SSVKGRFTISRDNSKNTLYLQMNSLRAEDT
NYGVT
MIWADGSTHYASSVKG
EWQHGPVAY
NYGVTWVRQAPGKGLEWVSMIWADGSTHYA
SSVKGRFTISRDNSKNTLYLQMNSLRAEDT
NYGVT
MIWADGSTHYASSVKG
EWQHGPVAY
Table 7 provides VL sequences of IgG converted clones for Humanized anti-TNF MAK-195 antibodies as discussed in detail in Example 2.
SAVAWYQQKPGKAPKLLIYWASTRHTGVPS
HYSTPFTFGQGTKLEIKR
KASQAVSSAVA
WASTRHT
QQHYSTPFT
SAVAWYQQKPGKAPKLLIYWASTLHTGVPS
HYRTPFTFGQGTKLEIKR
RASQLVSSAVA
WASTLHT
QQHYRTPFT
SAVAWYQQKPGKAPKLLIYWASTRHSGVPS
HYRTPFSFGQGTKLEIKR
RASQLVSSAVA
WASTRHS
QQHYRTPFS
SAVAWYQQKPGKAPKLLIYWASTRHSGVPS
HYRTPFTFGQGTKLEIKR
RASQLVSSAVA
WASTRHS
QQHYRTPFT
SAVAWYQQKPGKAPKLLIYWASARHTGVPS
HYKTPFSFGQGTKLEIKR
RASQLVSSAVA
WASARHT
QQHYKTPFS
SAVAWYQQKPGKAPKLLIYWASARHTGVPS
HYKTPFTFGQGTKLEIKR
RASQLVSSAVA
WASARHT
QQHYKTPFT
SAVAWYQQKPGKAPKLLIYWASARHTGVPS
HYRTPFTFGQGTKLEIKR
RASQLVSSAVA
WASARHT
QQHYRTPFT
SAVAWYQQKPGKAPKLLIYWASTRHTGVPS
HYRTPFTFGQGTKLEIKR
RASQLVSSAVA
WASTRHT
QQHYRTPFT
SALAWYQQKPGKAPKLLIYWASALHSGVPS
HYSAPFTFGQGTKLEIKR
RASQGVSSALA
WASALHS
QQHYSAPFT
SAVAWYQQKPGKAPKLLIYWASTLHSGVPS
HYSTPFTFGQGTKLEIKR
RASQLVSSAVA
WASTLHS
QQHYSTPFT
SAVAWYQQKPGKAPKLLIYWASTRHTGVPS
HYSTPFTFGQGTKLEIKR
KASQLVSSAVA
WASTRHT
QQHYSTPFT
SAVAWYQQKPGKAPKLLIYWASTLHTGVPS
HYRTPFTFGQGTKLEIKR
KASQLVSSAVA
WASTLHT
QQHYRTPFT
SALAWYQQKPGKAPKLLIYWASALHSGVPS
HYRPPFTFGQGTKLEIKR
KASQKVSSALA
WASALHS
QQHYRPPFT
SAVAWYQQKPGKAPKLLIYWASALHTGVPS
HYSSPYTFGQGTKLEIKR
KASQLVSSAVA
WASALHT
QQHYSSPYT
SAVAWYQQKPGKAPKLLIYWASTLHTGVPS
HYRTPFTFGQGTKLEIKR
KASQLVSSAVA
WASTLHT
QQHYRTPFT
C. Individual hMAK-199 Sequences from Converted Clones
Table 8 provides VH sequences of humanized anti-TNF MAK-199 converted clones as discussed in detail in Example 3.
NYGIIWVRQAPGQGLEWMGWINTYTGKPTY
AQKFQGRVTMTTDTSTSTAYMELSSLRSED
NYGII
WINTYTGKPTYAQKFQG
RASQDISQYLN
NYGIIWVRQAPGQGLEWMGWINTYTGKPTY
AQKLQGRVTMTTDTSTSTAYMELSSLRSED
NYGII
WINTYTGKPTYAQKLQG
KLFNTVDVTDNAMD
NYGIIWVRQAPGQGLEWMGWINTYTGVPTY
AQKFQGRVTMTTDTSTSTAYMELSSLRSED
NYGII
WINTYTGVPTYAQKFQG
KLFNTVDVTDNAMD
NYGIIWVRQAPGQGLEWMGWINTYTGKPTY
AQKFQGRVTMTTDTSTSTAYMELSSLRSED
NYGII
WINTYTGKPTYAQKFQG
KLFNTVAVTDNAMD
NYGIIWVRQAPGQGLEWMGWINTYTGKPTY
AQKFQGRVTMTTDTSTSTAYMELSSLRSED
NYGII
WINTYTGKPTYAQKFQG
KLFTTVDVTDNAMD
NYGINWVRQAPGQGLEWMGWINTYTGKPTY
AQKFQGRVTMTTDTSTSTAYMELSSLRSED
NYGIN
WINTYTGKPTYAQKFQG
KFRNTVAVTDYAMD
NYGITWVRQAPGQGLEWMGWINTYTGKPTY
AQKFQGRVTMTTDTSTSTAYMELSSLRSED
NYGIT
WINTYTGKPTYAQKFQG
KLFTTMDVTDNAMD
NYGIIWVRQAPGQGLEWMGWINTYTGKPTY
AQKFQGRVTMTTDTSTSTAYMELSSLRSED
NYGII
WINTYTGKPTYAQKFQG
KLFTTMDVTDNAMD
NYGINWVRQAPGQGLEWMGWINTYTGQPSY
AQKFQGRVTMTTDTSTSTAYMELSSLRSED
NYGIN
WINTYTGQPSYAQKFQG
KLFKTEAVTDYAMD
NYGIIWVRQAPGQGLEWMGWINTYSGKPTY
AQKFQGRVTMTTDTSTSTAYMELSSLRSED
NYGII
WINTYSGKPTYAQKFQG
KLFTTMDVTDNAMD
Table 9 provides VL sequences of humanized anti-TNF MAK-199 converted clones as discussed in detail in Example 3.
QYLNWYQQKPGKAPKLLIYYTSRLQSGVPS
GNTWPPTFGQGTKLEIK
RASQDISQYLN
YTSRLQS
QQGNTWPPT
NYLNWYQQKPGKAPKLLIYYTSRLQSGVPS
GNSWPPTFGQGTKLEIK
RASQDISNYLN
YTSRLQS
QQGNSWPPT
NYLNWYQQKPGKAPKLLIYYTSRLQSGVPS
GNTQPPTFGQGTKLEIK
RASQDIYNYLN
YTSRLQS
QQGNTQPPT
NYLNWYQQKPGKAPKLLIYYTSRLQSGVPS
GNTQPPTFGQGTKLEIK
RASQDIENYLN
YTSRLQS
QQGNTQPPT
NYLNWYQQKPGKAPKLLIYYTSRLQSGVPS
GNTWPPTFGQGTKLEIK
RASQDISNYLN
YTSRLQS
QQGNTWPPT
DVLNWYQQKPGKAPKLLIYYASRLQSGVPS
GITLPPTFGQGTKLEIK
RASQDIYDVLN
YASRLQS
QQGITLPPT
NYLNWYQQKPGKAPKLLIYYTSRLQSGVPS
GNTWPPTFGQGTKLEIK
RASQDISNYLN
YTSRLQS
QQGNTWPPT
QYLNWYQQKPGKAPKLLIYYTSRLQSGVPS
GNTWPPTFGQGTKLEIK
RASQDISQYLN
YTSRLQS
QQGNTWPPT
NVLNWYQQKPGKAPKLLIYYASRLQSGVPS
GNTMPPTFGQGTKLEIK
RASQNIYNVLN
YASRLQS
QQGNTMPPT
NFLNWYQQKPGKAPKLLIYYTSRLQSGVPS
GNTQPPTFGQGTKLEIK
RASQDISNFLN
YTSRLQS
QQGNTQPPT
In an embodiment, the antigen binding domain comprises the VH region chosen from any one of SEQ ID NOs: 22, 24, 26, 28, 30, 32, 34-58, 74-83, 94-266, 478-486, 496-675, 738-762, 778-956, 1053-1062, 1073, 1075, and 1077, or one, two, or three CDRs therefrom. In another embodiment, the antigen binding domain comprises the VL region chosen from any one of SEQ ID NOs: 23, 25, 27, 29, 31, 33, 59-73, 84-93, 267-477, 487-495, 676-737, 763-777, 957-1052, 1063-1072, 1074, 1076, and 1078, or one, two, or three CDRs therefrom. In a particular embodiment, the antigen binding domain comprises a VH region and a VL region, for example, wherein the VH region comprises SEQ ID NOs: 22, 24, 26, 28, 30, 32, 34-58, 74-83, 94-266, 478-486, 496-675, 738-762, 778-956, 1053-1062, 1073, 1075, and 1077, or one, two, or three CDRs therefrom, and the VL region comprises SEQ ID NOs: 23, 25, 27, 29, 31, 33, 59-73, 84-93, 267-477, 487-495, 676-737, 763-777, 957-1052, 1063-1072, 1074, 1076, and 1078, or one, two, or three CDRs therefrom.
In an embodiment where the VH and/or the VL CDR sequences are provided above, the human acceptor framework comprises at least one amino acid sequence selected from: SEQ ID NOs: 6-21. In a particular embodiment, the human acceptor framework comprises an amino acid sequence selected from: SEQ IN NOs: 9, 10, 11, 12, 15, 16, 17, and 21. In another embodiment, the human acceptor framework comprises at least one framework region amino acid substitution, wherein the amino acid sequence of the framework is at least 65% identical to the sequence of the human acceptor framework and comprises at least 70 amino acid residues identical to the human acceptor framework. In another embodiment, the human acceptor framework comprises at least one framework region amino acid substitution at a key residue. The key residue selected from: a residue adjacent to a CDR; a glycosylation site residue; a rare residue; a residue capable of interacting with human TNF-α; a residue capable of interacting with a CDR; a canonical residue; a contact residue between heavy chain variable region and light chain variable region; a residue within a Vernier zone; and a residue in a region that overlaps between a Chothia-defined variable heavy chain CDR1 and a Kabat-defined first heavy chain framework. In an embodiment, the key residue is selected from: H1, H12, H24, H27, H29, H37, H48, H49, H67, H71, H73, H76, H78, L13, L43, L58, L70, and L80. In an embodiment, the VH mutation is selected from: Q1E, I12V, A24V, G27F, I29L, V29F F29L I37V, I48L, V48L, S49G, V67L, F67L, V71K, R71K, T73N, N76S, L78I, and F78I. In another embodiment, the VL mutation is selected from: V13L, A43S, I58V, E70D, and S80P. In an embodiment, the binding protein comprises two variable domains, wherein the two variable domains have amino acid sequences selected from: SEQ ID NOS: 22 and 23; 23 and 24; 24 and 25; 26 and 27; 28 and 29; 30 and 31; or 32 and 33.
In an embodiment, TNF-α binding proteins disclosed herein exhibit a high capacity to reduce or to neutralize TNF-α activity, e.g., as assessed by any one of several in vitro and in vivo assays known in the art. Alternatively, TNF-α binding proteins disclosed herein, also exhibit a high capacity to increase or agonize TNF-α activity.
In particular embodiments, the isolated binding protein, or antigen-binding portion thereof, binds human TNF-α, wherein the binding protein, or antigen-binding portion thereof, dissociates from human TNF-α with a koff rate constant of about 0.1 s−1 or less, as determined by surface plasmon resonance, such as 1×10−2 s−1 or less, 1×10−3 s−1 or less, 1×10−4 s−1 or less, 1×10−5 s−1 or less and 1×10−6 s−1 or less; or which inhibits human TNF-α activity with an IC50 of about 1×10−6 M or less, such as 1×10−7 M or less, 1×10−8 M or less, 1×10−9 M or less, 1×10−10 M or less and 1×10−11 M or less. In certain embodiments, the binding protein comprises a heavy chain constant region, such as an IgG1, IgG2, IgG3, IgG4, IgA, IgE, IgM or IgD constant region. In an embodiment, the heavy chain constant region is an IgG1 heavy chain constant region or an IgG4 heavy chain constant region. Furthermore, the binding protein can comprise a light chain constant region, either a kappa light chain constant region or a lambda light chain constant region. In another embodiment, the binding protein comprises a kappa light chain constant region. Alternatively, the binding protein portion can be, for example, a Fab fragment or a single chain Fv fragment.
Replacements of amino acid residues in the Fc portion to alter binding protein effector function are known in the art (See U.S. Pat. Nos. 5,648,260 and 5,624,821). The Fc portion of a binding protein mediates several important effector functions, e.g., cytokine induction, ADCC, phagocytosis, complement dependent cytotoxicity (CDC) and half-life/clearance rate of antibody and antigen-antibody complexes. In some cases these effector functions are desirable for therapeutic antibody but in other cases might be unnecessary or even deleterious, depending on the therapeutic objectives. Certain human IgG isotypes, particularly IgG1 and IgG3, mediate ADCC and CDC via binding to FcγRs and complement C1q, respectively. Neonatal Fc receptors (FcRn) are the critical components determining the circulating half-life of antibodies. In still another embodiment at least one amino acid residue is replaced in the constant region of the binding protein, for example the Fc region of the binding protein, such that effector functions of the binding protein are altered.
One embodiment provides a labeled binding protein wherein an antibody or antibody portion disclosed herein is derivatized or linked to another functional molecule (e.g., another peptide or protein). For example, a labeled binding protein disclosed herein can be derived by functionally linking an antibody or antibody portion disclosed herein (by chemical coupling, genetic fusion, noncovalent association or otherwise) to one or more other molecular entities, such as another antibody (e.g., a bispecific antibody or a diabody), a detectable agent, a cytotoxic agent, a pharmaceutical agent, and/or a protein or peptide that can mediate associate of the antibody or antibody portion with another molecule (such as a streptavidin core region or a polyhistidine tag).
Useful detectable agents with which an antibody or antibody portion disclosed herein may be derivatized include fluorescent compounds. Exemplary fluorescent detectable agents include fluorescein, fluorescein isothiocyanate, rhodamine, 5-dimethylamine-1-napthalenesulfonyl chloride, phycoerythrin and the like. An antibody may also be derivatized with detectable enzymes, such as alkaline phosphatase, horseradish peroxidase, glucose oxidase and the like. When an antibody is derivatized with a detectable enzyme, it is detected by adding additional reagents that the enzyme uses to produce a detectable reaction product. For example, when the detectable agent horseradish peroxidase is present, the addition of hydrogen peroxide and diaminobenzidine leads to a colored reaction product, which is detectable. An antibody may also be derivatized with biotin, and detected through indirect measurement of avidin or streptavidin binding.
Another embodiment of the disclosure provides a crystallized binding protein. In an embodiment, provided are crystals of whole TNF-α binding proteins and fragments thereof as disclosed herein, and formulations and compositions comprising such crystals. In one embodiment the crystallized binding protein has a greater half-life in vivo than the soluble counterpart of the binding protein. In another embodiment the binding protein retains biological activity after crystallization.
Crystallized binding protein disclosed herein may be produced according methods known in the art and as disclosed in PCT Publication WO 02/72636.
Another embodiment of the disclosure provides a glycosylated binding protein wherein the binding protein or antigen-binding portion thereof comprises one or more carbohydrate residues. Nascent in vivo protein production may undergo further processing, known as post-translational modification. In particular, sugar (glycosyl) residues may be added enzymatically, a process known as glycosylation. The resulting proteins bearing covalently linked oligosaccharide side chains are known as glycosylated proteins or glycoproteins. Protein glycosylation depends on the amino acid sequence of the protein of interest, as well as the host cell in which the protein is expressed. Different organisms may produce different glycosylation enzymes (e.g., glycosyltransferases and glycosidases), and have different substrates (nucleotide sugars) available. Due to such factors, protein glycosylation pattern, and composition of glycosyl residues, may differ depending on the host system in which the particular protein is expressed. Glycosyl residues useful in the disclosure may include, but are not limited to, glucose, galactose, mannose, fucose, n-acetylglucosamine and sialic acid. In an embodiment, the glycosylated binding protein comprises glycosyl residues such that the glycosylation pattern is human.
It is known to those skilled in the art that differing protein glycosylation may result in differing protein characteristics. For instance, the efficacy of a therapeutic protein produced in a microorganism host, such as yeast, and glycosylated utilizing the yeast endogenous pathway may be reduced compared to that of the same protein expressed in a mammalian cell, such as a CHO cell line. Such glycoproteins may also be immunogenic in humans and show reduced half-life in vivo after administration. Specific receptors in humans and other animals may recognize specific glycosyl residues and promote the rapid clearance of the protein from the bloodstream. Other adverse effects may include changes in protein folding, solubility, susceptibility to proteases, trafficking, transport, compartmentalization, secretion, recognition by other proteins or factors, antigenicity, or allergenicity. Accordingly, a practitioner may prefer a therapeutic protein with a specific composition and pattern of glycosylation, for example glycosylation composition and pattern identical, or at least similar, to that produced in human cells or in the species-specific cells of the intended subject animal.
Expressing glycosylated proteins different from that of a host cell may be achieved by genetically modifying the host cell to express heterologous glycosylation enzymes. Using techniques known in the art a practitioner may generate antibodies or antigen-binding portions thereof exhibiting human protein glycosylation. For example, yeast strains have been genetically modified to express non-naturally occurring glycosylation enzymes such that glycosylated proteins (glycoproteins) produced in these yeast strains exhibit protein glycosylation identical to that of animal cells, especially human cells (U.S. Pat. Nos. 7,449,308 and 7,029,872).
Further, it will be appreciated by one skilled in the art that a protein of interest may be expressed using a library of host cells genetically engineered to express various glycosylation enzymes, such that member host cells of the library produce the protein of interest with variant glycosylation patterns. A practitioner may then select and isolate the protein of interest with particular novel glycosylation patterns. In an embodiment, the protein having a particularly selected novel glycosylation pattern exhibits improved or altered biological properties.
Given their ability to bind to human TNF-α, e.g., the human TNF-α binding proteins, or portions thereof, disclosed herein can be used to detect TNF-α (e.g., in a biological sample, such as serum or plasma), using a conventional immunoassay, such as an enzyme linked immunosorbent assays (ELISA), an radioimmunoassay (RIA) or tissue immunohistochemistry. A method for detecting TNF-α in a biological sample is provided comprising contacting a biological sample with a binding protein, or binding protein portion, disclosed herein and detecting either the binding protein (or binding protein portion) bound to TNF-α or unbound binding protein (or binding protein portion), to thereby detect TNF-α in the biological sample. The binding protein is directly or indirectly labeled with a detectable substance to facilitate detection of the bound or unbound antibody. Suitable detectable substances include various enzymes, prosthetic groups, fluorescent materials, luminescent materials and radioactive materials. Examples of suitable enzymes include horseradish peroxidase, alkaline phosphatase, β-galactosidase, or acetylcholinesterase; examples of suitable prosthetic group complexes include streptavidin/biotin and avidin/biotin; examples of suitable fluorescent materials include umbelliferone, fluorescein, fluorescein isothiocyanate, rhodamine, dichlorotriazinylamine fluorescein, dansyl chloride or phycoerythrin; an example of a luminescent material includes luminol; and examples of suitable radioactive material include 3H, 14C, 35S, 90Y, 99Tc, 111In, 125I, 131I, 177Lu, 166Ho, or 153Sm.
Alternative to labeling the binding protein, human TNF-α can be assayed in biological fluids by a competition immunoassay utilizing rhTNF-α standards labeled with a detectable substance and an unlabeled human TNF-α binding protein. In this assay, the biological sample, the labeled rhTNF-α standards and the human TNF-α binding protein are combined and the amount of labeled rhTNF-α standard bound to the unlabeled binding protein is determined. The amount of human TNF-α in the biological sample is inversely proportional to the amount of labeled rhTNF-α standard bound to the TNF-α binding protein. Similarly, human TNF-α can also be assayed in biological fluids by a competition immunoassay utilizing rhTNF-α standards labeled with a detectable substance and an unlabeled human TNF-α binding protein.
In an embodiment, the binding proteins and binding protein portions disclosed herein are capable of neutralizing TNF-α activity, e.g., human TNF-α activity, both in vitro and in vivo. In another embodiment, the binding proteins and binding protein portions disclosed herein are capable of increasing or agonizing human TNF-α activity, e.g., human TNF-α activity. Accordingly, such binding proteins and binding protein portions disclosed herein can be used to inhibit or increase hTNF-α activity, e.g., in a cell culture containing hTNF-α, in human subjects or in other mammalian subjects having TNF-α with which a binding protein disclosed herein cross-reacts. In one embodiment, a method for inhibiting or increasing hTNF-α activity is provided comprising contacting hTNF-α with a binding protein or binding protein portion disclosed herein such that hTNF-α activity is inhibited or increased. For example, in a cell culture containing, or suspected of containing hTNF-α, a binding protein or binding protein portion disclosed herein can be added to the culture medium to inhibit or increase hTNF-α activity in the culture.
In another embodiment, a method is provided for reducing or increasing hTNF-α activity in a subject, advantageously from a subject suffering from a disease or disorder in which TNF-α-activity is detrimental or, alternatively, beneficial. Methods for reducing or increasing TNF-α activity in a subject suffering from such a disease or disorder is provided, which method comprises administering to the subject a binding protein or binding protein portion disclosed herein such that TNF-α activity in the subject is reduced or increased. In a particular embodiment, the TNF-α is human TNF-α, and the subject is a human subject. Alternatively, the subject can be a mammal expressing a TNF-α to which a binding protein provided is capable of binding. Still further the subject can be a mammal into which TNF-α has been introduced (e.g., by administration of TNF-α or by expression of a TNF-α transgene). A binding protein disclosed herein can be administered to a human subject for therapeutic purposes. Moreover, a binding protein disclosed herein can be administered to a non-human mammal expressing a TNF-α with which the binding protein is capable of binding for veterinary purposes or as an animal model of human disease. Regarding the latter, such animal models may be useful for evaluating the therapeutic efficacy of binding proteins disclosed herein (e.g., testing of dosages and time courses of administration).
The term “a disorder in which TNF-α activity is detrimental” includes diseases and other disorders in which the presence of TNF-α activity in a subject suffering from the disorder has been shown to be or is suspected of being either responsible for the pathophysiology of the disorder or a factor that contributes to a worsening of the disorder. Accordingly, a disorder in which TNF-α activity is detrimental is a disorder in which reduction of TNF-α activity is expected to alleviate the symptoms and/or progression of the disorder. Such disorders may be evidenced, for example, by an increase in the concentration of TNF-α in a biological fluid of a subject suffering from the disorder (e.g., an increase in the concentration of TNF-α in serum, plasma, synovial fluid, etc. of the subject), which can be detected, for example, using an anti-TNF-α antibody as described above. Non-limiting examples of disorders that can be treated with the binding proteins disclosed herein include those disorders discussed in the section below pertaining to pharmaceutical compositions of the antibodies disclosed herein.
Alternatively, the term “a disorder in which TNF-α activity is beneficial” include diseases and other disorders in which the presence of TNF-α activity in a subject suffering from the disorder has been shown to be or is suspected of being either beneficial for treating the pathophysiology of the disorder or a factor that contributes to a treatment of the disorder. Accordingly, a disorder in which TNF-α activity is beneficial is a disorder in which an increase of TNF-α activity is expected to alleviate the symptoms and/or progression of the disorder. Non-limiting examples of disorders that can be treated with the antibodies disclosed herein include those disorders discussed in the section below pertaining to pharmaceutical compositions of the antibodies disclosed herein.
Pharmaceutical compositions are also provided comprising a binding protein, or antigen-binding portion thereof, disclosed herein and a pharmaceutically acceptable carrier. The pharmaceutical compositions comprising binding protein disclosed herein are for use in, but not limited to, diagnosing, detecting, or monitoring a disorder, in preventing, treating, managing, or ameliorating of a disorder or one or more symptoms thereof, and/or in research. In a specific embodiment, a composition comprises one or more binding proteins disclosed herein. In another embodiment, the pharmaceutical composition comprises one or more binding proteins disclosed herein and one or more prophylactic or therapeutic agents other than binding proteins disclosed herein for treating a disorder in which TNF-α activity is detrimental. In a particular embodiment, the prophylactic or therapeutic agents known to be useful for or having been or currently being used in the prevention, treatment, management, or amelioration of a disorder or one or more symptoms thereof. In accordance with these embodiments, the composition may further comprise of a carrier, diluent or excipient.
The binding proteins and binding protein-portions disclosed herein can be incorporated into pharmaceutical compositions suitable for administration to a subject. Typically, the pharmaceutical composition comprises a binding protein or binding protein portion disclosed herein and a pharmaceutically acceptable carrier. The term “pharmaceutically acceptable carrier” includes any and all solvents, dispersion media, coatings, antibacterial and antifungal agents, isotonic and absorption delaying agents, and the like that are physiologically compatible. Examples of pharmaceutically acceptable carriers include one or more of water, saline, phosphate buffered saline, dextrose, glycerol, ethanol and the like, as well as combinations thereof. In many cases, isotonic agents, for example, sugars, polyalcohols such as mannitol, sorbitol, or sodium chloride in the composition, may be included. Pharmaceutically acceptable carriers may further comprise minor amounts of auxiliary substances such as wetting or emulsifying agents, preservatives or buffers, which enhance the shelf life or effectiveness of the binding protein or binding protein portion.
Various delivery systems are known and can be used to administer one or more binding proteins disclosed herein or the combination of one or more binding proteins disclosed herein and a prophylactic agent or therapeutic agent useful for preventing, managing, treating, or ameliorating a disorder or one or more symptoms thereof, e.g., encapsulation in liposomes, microparticles, microcapsules, recombinant cells capable of expressing the binding protein or binding protein fragment, receptor-mediated endocytosis (see, e. g., Wu and Wu (1987) J. Biol. Chem. 262:4429-4432), construction of a nucleic acid as part of a retroviral or other vector, etc. Methods of administering a prophylactic or therapeutic agent disclosed herein include, but are not limited to, parenteral administration (e.g., intradermal, intramuscular, intraperitoneal, intravenous and subcutaneous), epidural administration, intratumoral administration, and mucosal administration (e.g., intranasal and oral routes). In addition, pulmonary administration can be employed, e.g., by use of an inhaler or nebulizer, and formulation with an aerosolizing agent. In one embodiment, a binding protein disclosed herein, combination therapy, or a composition disclosed herein is administered using Alkermes AIR® pulmonary drug delivery technology (Alkermes, Inc., Cambridge, Mass.). In a specific embodiment, prophylactic or therapeutic agents disclosed herein are administered intramuscularly, intravenously, intratumorally, orally, intranasally, pulmonary, or subcutaneously. The prophylactic or therapeutic agents may be administered by any convenient route, for example by infusion or bolus injection, by absorption through epithelial or mucocutaneous linings (e.g., oral mucosa, rectal and intestinal mucosa, etc.) and may be administered together with other biologically active agents. Administration can be systemic or local.
In a specific embodiment, it may be desirable to administer the prophylactic or therapeutic agents disclosed herein locally to the area in need of treatment; this may be achieved by, for example, and not by way of limitation, local infusion, by injection, or by means of an implant, said implant being of a porous or non-porous material, including membranes and matrices, such as sialastic membranes, polymers, fibrous matrices (e.g., Tissuel®), or collagen matrices. In one embodiment, an effective amount of one or more binding proteins disclosed herein antagonists is administered locally to the affected area to a subject to prevent, treat, manage, and/or ameliorate a disorder or a symptom thereof. In another embodiment, an effective amount of one or more binding proteins disclosed herein is administered locally to the affected area in combination with an effective amount of one or more therapies (e.g., one or more prophylactic or therapeutic agents) other than an antibody disclosed herein of a subject to prevent, treat, manage, and/or ameliorate a disorder or one or more symptoms thereof.
In a specific embodiment, where the composition disclosed herein is a nucleic acid encoding a prophylactic or therapeutic agent, the nucleic acid can be administered in vivo to promote expression of its encoded prophylactic or therapeutic agent, by constructing it as part of an appropriate nucleic acid expression vector and administering it so that it becomes intracellular, e.g., by use of a retroviral vector (see U.S. Pat. No. 4,980,286), or by direct injection, or by use of microparticle bombardment (e.g., a gene gun; Biolistic, DuPont), or coating with lipids or cell-surface receptors or transfecting agents, or by administering it in linkage to a homeobox-like peptide which is known to enter the nucleus (see, e.g., Joliot et al. (1991) Proc. Natl. Acad. Sci. USA 88:1864-1868). Alternatively, a nucleic acid can be introduced intracellularly and incorporated within host cell DNA for expression by homologous recombination.
The method disclosed herein may comprise administration of a composition formulated for parenteral administration by injection (e.g., by bolus injection or continuous infusion). Formulations for injection may be presented in unit dosage form (e.g., in ampoules or in multi-dose containers) with an added preservative. The compositions may take such forms as suspensions, solutions or emulsions in oily or aqueous vehicles, and may contain formulatory agents such as suspending, stabilizing and/or dispersing agents. Alternatively, the active ingredient may be in powder form for constitution with a suitable vehicle (e.g., sterile pyrogen-free water) before use.
The methods disclosed herein may additionally comprise of administration of compositions formulated as depot preparations. Such long acting formulations may be administered by implantation (e.g., subcutaneously or intramuscularly) or by intramuscular injection. Thus, for example, the compositions may be formulated with suitable polymeric or hydrophobic materials (e.g., as an emulsion in an acceptable oil) or ion exchange resins, or as sparingly soluble derivatives (e.g., as a sparingly soluble salt).
The methods disclosed herein encompass administration of compositions formulated as neutral or salt forms. Pharmaceutically acceptable salts include those formed with anions such as those derived from hydrochloric, phosphoric, acetic, oxalic, tartaric acids, etc., and those formed with cations such as those derived from sodium, potassium, ammonium, calcium, ferric hydroxides, isopropylamine, triethylamine, 2-ethylamino ethanol, histidine, procaine, etc.
Generally, the ingredients of compositions are supplied either separately or mixed together in unit dosage form, for example, as a dry lyophilized powder or water free concentrate in a hermetically sealed container such as an ampoule or sachette indicating the quantity of active agent. Where the mode of administration is infusion, composition can be dispensed with an infusion bottle containing sterile pharmaceutical grade water or saline. Where the mode of administration is by injection, an ampoule of sterile water for injection or saline can be provided so that the ingredients may be mixed prior to administration.
In particular, it is also provided that one or more of the prophylactic or therapeutic agents, or pharmaceutical compositions disclosed herein is packaged in a hermetically sealed container such as an ampoule or sachette indicating the quantity of the agent. In one embodiment, one or more of the prophylactic or therapeutic agents, or pharmaceutical compositions disclosed herein is supplied as a dry sterilized lyophilized powder or water free concentrate in a hermetically sealed container and can be reconstituted (e.g., with water or saline) to the appropriate concentration for administration to a subject. In an embodiment, one or more of the prophylactic or therapeutic agents or pharmaceutical compositions disclosed herein is supplied as a dry sterile lyophilized powder in a hermetically sealed container at a unit dosage of at least 5 mg, at least 10 mg, at least 15 mg, at least 25 mg, at least 35 mg, at least 45 mg, at least 50 mg, at least 75 mg, or at least 100 mg. The lyophilized prophylactic or therapeutic agents or pharmaceutical compositions disclosed herein should be stored at between 2° C. and 8° C. in its original container and the prophylactic or therapeutic agents, or pharmaceutical compositions disclosed herein should be administered within 1 week, within 5 days, within 72 hours, within 48 hours, within 24 hours, within 12 hours, within 6 hours, within 5 hours, within 3 hours, or within 1 hour after being reconstituted. In an alternative embodiment, one or more of the prophylactic or therapeutic agents or pharmaceutical compositions disclosed herein is supplied in liquid form in a hermetically sealed container indicating the quantity and concentration of the agent. In an embodiment, the liquid form of the administered composition is supplied in a hermetically sealed container at least 0.25 mg/ml, at least 0.5 mg/ml, at least 1 mg/ml, at least 2.5 mg/ml, at least 5 mg/ml, at least 8 mg/ml, at least 10 mg/ml, at least 15 mg/kg, at least 25 mg/ml, at least 50 mg/ml, at least 75 mg/ml or at least 100 mg/ml. The liquid form should be stored at between 2° C. and 8° C. in its original container.
The binding proteins and binding protein-portions disclosed herein can be incorporated into a pharmaceutical composition suitable for parenteral administration. In an embodiment, the binding protein or binding protein-portions will be prepared as an injectable solution containing 0.1-250 mg/ml binding protein. The injectable solution can be composed of either a liquid or lyophilized dosage form in a flint or amber vial, ampoule or pre-filled syringe. The buffer can be L-histidine (1-50 mM), optimally 5-10 mM, at pH 5.0 to 7.0 (optimally pH 6.0). Other suitable buffers include but are not limited to, sodium succinate, sodium citrate, sodium phosphate or potassium phosphate. Sodium chloride can be used to modify the toxicity of the solution at a concentration of 0-300 mM (optimally 150 mM for a liquid dosage form). Cryoprotectants can be included for a lyophilized dosage form, principally 0-10% sucrose (optimally 0.5-1.0%). Other suitable cryoprotectants include trehalose and lactose. Bulking agents can be included for a lyophilized dosage form, principally 1-10% mannitol (optimally 2-4%). Stabilizers can be used in both liquid and lyophilized dosage forms, principally 1-50 mM L-Methionine (optimally 5-10 mM). Other suitable bulking agents include glycine, arginine, can be included as 0-0.05% polysorbate-80 (optimally 0.005-0.01%). Additional surfactants include but are not limited to polysorbate 20 and BRIJ surfactants.
Typical compositions are in the form of injectable or infusible solutions, such as compositions similar to those used for passive immunization of humans with other antibodies. Therapeutic compositions typically must be sterile and stable under the conditions of manufacture and storage. The composition can be formulated as a solution, microemulsion, dispersion, liposome, or other ordered structure suitable to high drug concentration. Sterile injectable solutions can be prepared by incorporating the active compound (i.e., binding protein or binding protein portion) in the required amount in an appropriate solvent with one or a combination of ingredients enumerated above, as required, followed by filtered sterilization. Generally, dispersions are prepared by incorporating the active compound into a sterile vehicle that contains a basic dispersion medium and the required other ingredients from those enumerated above. In the case of sterile, lyophilized powders for the preparation of sterile injectable solutions, the methods of preparation include vacuum drying and spray-drying that yields a powder of the active ingredient plus any additional desired ingredient from a previously sterile-filtered solution thereof. The proper fluidity of a solution can be maintained, for example, by the use of a coating such as lecithin, by the maintenance of the required particle size in the case of dispersion and by the use of surfactants. Prolonged absorption of injectable compositions can be brought about by including, in the composition, an agent that delays absorption, for example, monostearate salts and gelatin.
As will be appreciated by the skilled artisan, the route and/or mode of administration will vary depending upon the desired results. In certain embodiments, the active compound may be prepared with a carrier that will protect the compound against rapid release, such as a controlled release formulation, including implants, transdermal patches, and microencapsulated delivery systems. Biodegradable, biocompatible polymers can be used, such as ethylene vinyl acetate, polyanhydrides, polyglycolic acid, collagen, polyorthoesters, and polylactic acid. Many methods for the preparation of such formulations are patented or generally known to those skilled in the art. See, e.g., Sustained and Controlled Release Drug Delivery Systems, J. R. Robinson, ed., Marcel Dekker, Inc., New York, 1978.
Supplementary active compounds can also be incorporated into the compositions. In certain embodiments, a binding protein or binding protein portion disclosed herein is coformulated with and/or coadministered with one or more additional therapeutic agents that are useful for treating disorders in which TNF-α activity is detrimental. For example, an anti-hTNF-α antibody or antibody portion disclosed herein may be coformulated and/or coadministered with one or more additional antibodies that bind other targets (e.g., antibodies that bind other cytokines or that bind cell surface molecules). Furthermore, one or more binding proteins disclosed herein may be used in combination with two or more of the foregoing therapeutic agents. Such combination therapies may advantageously utilize lower dosages of the administered therapeutic agents, thus avoiding possible toxicities or complications associated with the various monotherapies.
In certain embodiments, a binding protein to TNF-α or fragment thereof is linked to a half-life extending vehicle known in the art. Such vehicles include, but are not limited to, the Fc domain, polyethylene glycol, and dextran. Such vehicles are described, e.g., in U.S. Pat. No. 6,660,843.
In a specific embodiment, nucleic acid sequences comprising nucleotide sequences encoding a binding protein disclosed herein or another prophylactic or therapeutic agent disclosed herein are administered to treat, prevent, manage, or ameliorate a disorder or one or more symptoms thereof by way of gene therapy. Gene therapy refers to therapy performed by the administration to a subject of an expressed or expressible nucleic acid. In this embodiment of the disclosure, the nucleic acids produce their encoded binding protein or prophylactic or therapeutic agent disclosed herein that mediates a prophylactic or therapeutic effect.
Any of the methods for gene therapy available in the art can be used according to the present disclosure.
TNF-α plays a critical role in the pathology associated with a variety of diseases involving immune and inflammatory elements, such as autoimmune diseases, particularly those assocated with inflammation, including Crohn's disease, psoriasis (including plaque psoriasis), arthritis (including rheumatoid arthritis, psoratic arthritis, osteoarthritis, or juvenile idiopathic arthritis), multiple sclerosis, systemic lupus erythematosus, and ankylosing spondylitis. Therefore, the binding proteins herein may be used to treat these disorders. In another embodiment, the disorder is a respiratory disorder; asthma; allergic and nonallergic asthma; asthma due to infection; asthma due to infection with respiratory syncytial virus (RSV); chronic obstructive pulmonary disease (COPD); a condition involving airway inflammation; eosinophilia; fibrosis and excess mucus production; cystic fibrosis; pulmonary fibrosis; an atopic disorder; atopic dermatitis; urticaria; eczema; allergic rhinitis; allergic enterogastritis; an inflammatory and/or autoimmune condition of the skin; an inflammatory and/or autoimmune condition of gastrointestinal organs; inflammatory bowel diseases (IBD); ulcerative colitis; an inflammatory and/or autoimmune condition of the liver; liver cirrhosis; liver fibrosis; liver fibrosis caused by hepatitis B and/or C virus; scleroderma; tumors or cancers; hepatocellular carcinoma; glioblastoma; lymphoma; Hodgkin's lymphoma; a viral infection; a bacterial infection; a parasitic infection; HTLV-1 infection; suppression of expression of protective type 1 immune responses, suppression of expression of a protective type 1 immune response during vaccination, neurodegenerative diseases, neuronal regeneration, and spinal cord injury.
It will be readily apparent to those skilled in the art that other suitable modifications and adaptations of the methods disclosed herein may be made using suitable equivalents without departing from the scope of the invention or the embodiments disclosed herein. Having now described the present disclosure in detail, the same will be more clearly understood by reference to the following examples, which are included for purposes of illustration only and are not intended to be limiting of the invention.
Fully human anti-human TNF monoclonal antibodies were isolated by in vitro display technologies from human antibody libraries by their ability to bind recombinant human TNF proteins. The amino acid sequences of the variable heavy (VH) and variable light (VL) chains were determined from DNA sequencing and listed in Table 10.
SYDVN
WVRQATGQGLEWMGMNPNSGNTGY
AQKFQG
RVTITADESTSTAYMELSSLRSED
SYDVN
WMNPNSGNTGYAQKFQG
FDSDYMDV
YAY
WYQQKPGQAPVLVIYKDTERPSGIPER
DSSGTSWV
FGGGTKLTVL
SGDALPKQYAY
KDTERPS
SADSSGTSWV
SYAIS
WVRQAPGQGLEWMGGIIPILGTANY
AQKFLG
RVTITADESTSTVYMELSSLRSED
SYAIS
GIIPILGTANYAQKFLG
GLYYDPTRADY
SSLH
WYQQKPDQSPKLLIRHASQSISGVPS
SSSSPPPT
FGQGTQVEIK
RASQSIGSSLH
HASQSIS
HQSSSSPPPT
NYWMS
WVRQAPGKGLEWVANINHDESEKYY
VDSAKG
RFTISRDNAEKSLFLQMNSLRAED
NYWMS
NINHDESEKYYVDSAKG
IIRGRVGFDYYNYAMDV
NYLN
WYQHKPGKAPKLLIYAASSLQSGVPS
SYSLI
FAGGTKVEIK
RASQSIGNYLN
AASSLQS
QESYSLI
NYDIN
WVRQPTGQGLEWMGWMDPNNGNTGY
AQKFVG
RVTMTRDTSKTTAYLELSGLKSED
NYDIN
WMDPNNGNTGYAQKFVG
KSSGSGGTWYKEYFQS
HSNGYNYLD
WYLQKPGQFPQLLIYLGSYRA
S
GVPDRFSGSGSGTDFTLKISRVEAEDVGV
RSSQSLLHSNGYNYLD
LGSYRAS
MQRIEFPPGT
QYPIH
WVRQAPGQRPEWMGWISPGNGNTKL
SPKFQG
RVTLSRDASAGTVFMDLSGLTSDD
QYPIH
WISPGNGNTKLSPKFQG
VDLGDH
SSLH
WYQQKPDQSPKLLINYASQSFSGVPS
SSNLPIT
FGQGTRLEIK
RASQSIGSSLH
YASQSFS
HQSSNLPIT
DYPMH
WVRQAPGEGLEWVSGISSNSASIGY
ADSVKG
RFTISRDNAQNTLYLQMNSLGDED
DYPMH
GISSNSASIGYADSVKG
LTLG
NYLH
WYQQKPGKAPKLLIYAASSLQSGVPS
SYSTLYS
FGQGTKLEIK
RASQSIGNYLH
AASSLQS
QQSYSTLYS
The AE11-5 human antibody to human TNF was affinity matured by in vitro display technology. One light chain library was constructed to contain limited mutagenesis at the following residues: 28, 31, 32, 51, 55, 91, 92, 93, 95a and 96 (Kabat numbering). This library also contained framework germline back-mutations D1E, M4L, H11Q, R49K, H76N and Q103K as well as toggled residues at position 50(R/K) and 94(S/L) to allow for framework germlining during library selections. Two heavy chain libraries were made to contain limited mutagenesis in CDRH1 and CDRH2 at residues 30, 31, 33, 50, 52, and 55 to 58 (Kabat numbering) or in CDRH3 at residues 95 to 100b. The library containing CDRH1 and CDRH2 diversities also had framework germline back-mutations Al8V and L64Q and toggled residue at 54(L/F) and 78(V/A). The CDRH3 library has an additional toggled residue at 100c(A/F).
All three libraries were selected separately for the ability to bind human or cynomolgus monkey TNF in the presence of decreasing concentrations of biotinylated human or cynomolgus monkey TNF antigens. All mutated CDR sequences recovered from library selections were recombined into additional libraries and the recombined libraries were subjected to more stringent selection conditions before individual antibodies are identified.
Table 11 provides a list of amino acid sequences of VH regions of affinity matured fully human TNF antibodies derived from AE11-5. Amino acid residues of individual CDRs of each VH sequence are indicated in bold.
ISWVRQAPGQGLEWMGGITPILGSANYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIMPILGTANYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGSPIYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGSPIYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGTANYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGAATYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGAAVYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIMPILGTANYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGVAVYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGTANYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGSAHYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGSAIYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGTAIYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILRNPIYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIMPILGTPTYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGAPIYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGSATYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIMPILGSASYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIMPILGTASYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGTANYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIMPILGTATYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIMPILGSPHYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGTANYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIMPILGSATYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTPTYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
VYYDPKRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIMPILGAPRYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIMPILGSPIYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGILPILGSPIYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGSPIYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIVPILGAPLYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIMPILGAPIYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIMPILGTPAYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGAATYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTPTYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTPIYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGIGNYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIVPILGAATYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGSSTYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIMPILGTANYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGNSIYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGSPIYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIMPILGTPTYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGAANYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGAAIYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGTATYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGSAHYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGNAIYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILRSAVYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIMPILGTANYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGTASYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGTAIYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGSPAYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGPASYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILDAAIYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIMPILGIPNYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGSAIYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIMPILGTATYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
VYFDPKRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIMPILGTANYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
VYFDFTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILRFPTYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGILPILDTANYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIMPILGTAVYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGILPILGTANYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
VYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
LYYDPSRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
VYFNPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
LYYDPARFDYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
LYYNPSRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
LYYDPKRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
LYYDPRRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
FYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
LYYDFTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
LYFDPKRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
VYFDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
IYYDPSRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
LYYERTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
RFYIPIRFDYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
VYYDFTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
LFYDPSRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
VYYDPVRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
VYYDPIRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
IYYDPKRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
LYYNPIRFDYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
VYFDPARADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
VFFDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
VFYNPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
LYYEGPSADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
LYYAPNRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
LFYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
VYYNPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
VYYDPARADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
VYYDPGRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
VYFDPSRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
LYFDPSRFDYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
LYFDFTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
IYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
LYFDPSRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
VYYDPSRFDYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
QYYDTSRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
LYYDTTRFDYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
VFYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
IYYDPARADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
LFYDPRRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
VYYDTTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
LYYDPARADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
IYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQEFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTASYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAHKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
LYYDPTRADCWGQGTLVTVSS
ISWVQQAPGQGLEWMGGIIPILGTANYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGTANYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
LYYDPTRADYWGQGTLVTVSS
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFLG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIIPILGTANYAQKFQG
LYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGSATYAQKFQG
LYYDPKRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGAASYAQKFQG
IYYDPTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGAASYAQKFQG
IYYDPARADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGAANYAQKFQG
VYYDPKRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIMPILGSPTYAQKFQG
VYYDPRRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGSATYAQKFQG
IYYDPKRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIVPILGTPIYAQKFQG
VYYDPKRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGSANYAQKFQG
LYYDPARADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGSPTYAQKFQG
VYYDPKRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIMPILGTPVYAQKFQG
VYYDFRRANYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGAATYAQKFQG
IYYDPKRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGDPIYAQKFQG
IYYDPKRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGNPIYAQKFQG
IYYDYKRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGSANYAQKFQG
LFYDFRRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGNAIYAQKFQG
VYYDPKRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGNPIYAQKFQG
VYYDPKRADYWGQGTLVTVSS
TSWVRQAPGQGLEWMGGITPILGSPIYAQKFQG
VYYDHRRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGSPIYAQKFQG
VYYDYKRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGSAIYAQKFQG
VYYDPKRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGTPIYAQKFQG
VYYDFKRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIMPILGTPIYAQKFQG
VYYDPRRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGSANYAQKFQG
VYYDPKRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGAPVYAQKFQG
VYYDPKRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGSAIYAQKFQG
VYYDPKRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGSPIYAQKFQG
IYYDPKRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIMPILGSANYAQKFQG
IYYDPKRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGNAIYAQKFQG
IYYDPKRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGAATYAQKFQG
VYYDPKRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGSPIYAQKFQG
IYYDYRRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIMPILGIPTYAQKFQG
VYYDPARADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGSPIYAQKFQG
VYYDPKRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGSAVYAQKFQG
VYYDPKRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGSAIYAQKFQG
IYYDYKRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGYPIYAQKFQG
VYYDPKRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGAATYAQKFQG
IYYDFRRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGSAIYAQKFQG
VYYDFRRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGTANYAQKFQG
VYYDPKRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGSAVYAQKFQG
IYYDPKRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGNPIYAQKFQG
VYYDPARADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIMPILGAPNYAQKFQG
VYYDYTRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGSPTYAQKFQG
VYYDPKRADYWGQGTLVTVSS
TSWVRQAPGQGLEWMGGIIPILGTPNYAQKFQG
VYYDPKRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIMPILGTPTYAQKFQG
VYYDPKRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIMPILGSPNYAQKFQG
IYYDPKRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGIMPILGSATYAQKFQG
VYFDPKRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGAANYAQKFQG
LYYDPKRADYWGQGTLVTVSS
ISWVRQAPGQGLEWMGGITPILGAGIYAQKFQG
VYYDFKRADYWGQGTLVTVSS
Table 12 provides a list of amino acid sequences of VL regions of affinity matured fully human TNF antibodies derived from AE11-5. Amino acid residues of individual CDRs of each VH sequence are indicated in bold.
TKVEIK
KFLG
RVTITADESTSTVYMELSSLRSEDTAVYYCARGLYYDPTRADYWGQGTLVTVSS
WYATSWVRQAPGQGLEWMGGITPILGSPIY
AQKFQGRVTITADESTSTVYMELSSLRSED
WYATS
GITPILGSPIYAQKFQG
GVYYDHRRADY
WYAISWVRQAPGQGLEWMGGITPILGAANY
AQKFQGRVTITADESTSTVYMELSSLRSED
WYAIS
GITPILGAANYAQKFQG
GVYYDPKRADY
WYAISWVRQAPGQGLEWMGGITPILGTANY
AQKFQGRVTITADESTSTVYMELSSLRSED
WYAIS
GITPILGTANYAQKFQG
GVYYDPKRADY
WYAISWVRQAPGQGLEWMGGITPILGSPIY
AQKFQGRVTITADESTSTVYMELSSLRSED
WYAIS
GITPILGSPIYAQKFQG
GVYYDPKRADY
WYPISWVRQAPGQGLEWMGGITPILGAGIY
AQKFQGRVTITADESTSTVYMELSSLRSED
WYPIS
GITPILGAGIYAQKFQG
GVYYDFKRADY
WYAISWVRQAPGQGLEWMGGITPILGSATY
AQKFQGRVTITADESTSTVYMELSSLRSED
WYAIS
GITPILGSATYAQKFQG
GIYYDPKRADY
WYAISWVRQAPGQGLEWMGGITPILGTPIY
AQKFQGRVTITADESTSTVYMELSSLRSED
WYAIS
GITPILGTPIYAQKFQG
GVYYDFKRADY
WYAISWVRQAPGQGLEWMGGITPILGSPIY
AQKFQGRVTITADESTSTVYMELSSLRSED
WYAIS
GITPILGSPIYAQKFQG
GIYYDPKRADY
WYAISWVRQAPGQGLEWMGGITPILGSPIY
AQKFQGRVTITADESTSTVYMELSSLRSED
WYAIS
GITPILGSPIYAQKFQG
GVYYDYKRADY
NTLHWYQQKPDQSPKLLIKHVSQSVSGVPS
KVSSPSPTFGQGTKVEIK
RASQSIGNTLH
HVSQSVS
HQKVSSPSPT
STLHWYQQKPDQSPKLLIKHASQSNSGVPS
SSSLPPPTFGQGTKVEI
RASQSIGSTLH
HASQSNS
HQSSSLPPPT
SRLHWYQQKPDQSPKLLIKHASQSTSGVPS
SGSSPPRTFGQGTKVEIK
RASQSIGSRLH
HASQSTS
HQSGSSPPRT
SSLHWYQQKPDQSPKLLIKHASQSVSGVPS
SRSSPPPTFGQGTKVEIK
RASQRIGSSLH
HASQSVS
SSLHWYQQKPDQSPKLLIKHASQSTSGVPS
SSSSPPSTFGQGTKVEIK
RASQSIGSSLH
HASQSTS
HQSSSSPPST
SSLHWYQQKPDQSPKLLIKHASQSISGVPS
TSSLPTPTFGQGTKVEIK
RASQTIGSSLH
HASQSIS
HQTSSLPTPT
SSLHWYQQKPDQSPKLLIKHASQSISGVPS
SSSSPPPTFGQGTKVEIK
RASQTIGSSLH
HASQSIS
HQSSSSPPPT
SSLHWYQQKPDQSPKLLIKHVSQSLSGVPS
RSSSPSPTFGQGTKVEIK
RASQSIGSSLH
HVSQSLS
HQRSSSPSPT
SNLHWYQQKPDQSPKLLIKHASQSISGVPS
TRTSPPLTFGQGTKVEIK
RASQSIGSNLH
HASQSIS
HQTRTSPPLT
The following protocol is used to characterize the binding of TNF antibodies to biotinylated human or cyno TNF by enzyme-linked immunosorbent assay (ELISA). An ELISA plate was coated with 50 μl per well of goat anti human IgG-Fc at 2 μg/ml, overnight at 4° C. The plate was washed 3 times with PBS/Tween. 50 μl Mab diluted to 1 μg/ml in PBS/0.1% BSA was added to appropriate wells and incubated for 1 hour at room temperature (RT). The plate was washed 3 times with PBS/Tween. 50 μl of serial diluted biotin-human TNF was added to appropriate wells and incubated for 1 hour at RT. The plate was washed 3 times with PBS/Tween. 50 μl of streptavidin-HRP diluted 1:10,000 in PBS/0.1% BSA was added to appropriate wells and incubated for 1 hour at RT. The plate was washed 3 times with PBS/Tween. 50 μl of TMB was added to appropriate wells and the reaction was allowed to proceed for 1 minute. The reaction was stopped with 50 μl/well 2N H2SO4 and the absorbance read at 450 nm. Results are shown in Table 17.
Human TNF was prepared at Abbott Bioresearch Center (Worcester, Mass., US) and received from the Biologics Pharmacy. Mouse TNF was prepared at Abbott Bioresearch Center and received from the Biologics Pharmacy. Rat TNF was prepared at Abbott Bioresearch Center and received from the Biologics Pharmacy. Rabbit TNF was purchased from R&D Systems. Rhesus/Macaque TNF (rhTNF) was purchased from R&D Systems. Actinomycin was purchased from Sigma Aldrich and resuspended at a stock concentration of 10 mg/mL in DMSO.
Assay Media: 10% FBS (Hyclone #SH30070.03), Gibco reagents: RPMI 1640 (#21870), 2 mM L-glutamine (#25030), 50 units/mL penicillin/ 50 μg/mL streptomycin (#15140), 0.1 mM MEM non-essential amino acids (#11140) and 5.5×10−5 M 2-mercaptoethanol (#21985-023).
L929 cells were grown to a semi-confluent density and harvested using 0.05% tryspin (Gibco #25300). The cells were washed with PBS, counted, and resuspended at 1E6 cells/mL in assay media containing 4 μg/mL actinomycin D. The cells were seeded in a 96-well plate (Costar #3599) at a volume of 50 μL and 5E4 cells/well. Wells received 50 μL of assay media, bringing the volume to 100 μL.
A test sample was prepared as follows. The test and control IgG proteins were diluted to a 4× concentration in assay media and serial 1:3 dilutions were performed. TNF species were diluted to the following concentrations in assay media: 400 pg/mL huTNF, 200 pg/mL muTNF, 600 pg/mL ratTNF, and 100 pg/mL rabTNF. Antibody sample (200 μL) was added to the TNF (200 μL) in a 1:2 dilution scheme and allowed to incubate for 0.5 hour at room temperature.
To measure huTNF neutralization potency in this assay, the antibody/TNF solution was added to the plated cells at 100 μL for a final concentration at 375 nM-0.019 nM. The final concentration of TNF was as follows: 100 pg/mL huTNF, 50 pg/mL muTNF, 150 pg/mL ratTNF, and 25 pg/mL rabTNF. The plates were incubated for 20 hours at 37° C., 5% CO2. To quantitate viability, 100 μL was removed from the wells and 10 μL of WST-1 reagent (Roche cat #11644807001) was added. Plates were incubated under assay conditions for 3.5 hours, centrifuged at 500×g, and 75 μL of supernatant transferred to an ELISA plate (Costar cat #3369). The plates were read at OD 420-600 nm on a Spectromax 190 ELISA plate reader. The neutralization potency of selected TNF/IL-17 DVD-Ig binding proteins is shown in Table 18.
The mouse anti-human TNF antibody MAK-195 was humanized and affinity-matured to generate a panel of humanized MAK195 variants that have cross-reactivity to cyno-TNF and improved affinity and binding kinetics against both human and cyno TNF.
To improve the affinity of hMAK195 to TNF, hypermutated CDR residues were identified from other human antibody sequences in the IgBLAST database that also shared high identity to germlines VH3-53 and IGKV1-39. The corresponding hMAK195 CDR residues were then subjected to limited mutagenesis by PCR with primers having low degeneracy at these positions to create three antibody libraries in the scFv format. The first library contained mutations at residues 31, 32, 33, 35, 50, 52, 53, 54, 56 and 58 in the VH CDR1 and 2 (Kabat numbering); the second library at residues 95 to 100, 100a, 101, and 102 in VH CDR3; and the third library at residues 28, 30, 31, 32, 50, 53, 92, 93, 94, and 95 in the three VL CDRs. To further increase the identity of hMAK195 to the human germline framework sequences, a binary degeneracy at VH positions 60 (D/A), 61 (S/D), 62 (T/S), 63 (L/V), and 65 (S/G) were introduced into the first library. Also, a binary degeneracy at VL positions 24 (K/R), 33 (V/L), 54 (R/L), 55 (H/Q), 56 (T/S), 91 (H/S) and 96 (F/Y) were introduced into the third library.
These hMAK195 variants were selected against a low concentration of biotinylated TNF for improved on-rate, off-rate, or both were carried out and antibody protein sequences of affinity-modulated hMAK195 were recovered for converting back to IgG for further characterization. All three libraries were selected separately for the ability to bind human or cynomolgus monkey TNF in the presence of decreasing concentrations of biotinylated human or cynomolgus monkey TNF antigens. All mutated CDR sequences recovered from library selections were recombined into additional libraries and the recombined libraries were subjected to more stringent selection conditions before individual antibodies are identified.
Table 19 provides a list of amino acid sequences of VH and VL of the humanized MAK-195 which were subjected to the affinity maturation selection protocol Amino acid residues of individual CDRs of each VH and VL sequence are indicated in bold.
Table 20 provides a list of amino acid sequences of VL regions of affinity matured fully human TNF antibodies derived from hMAK195 Amino acid residues of individual CDRs of each VH sequence are indicated in bold.
The tables below provide a list of humanized MAK-195 antibodies that were converted into IgG proteins for characterization.
NYGVNWVRQAPGKGLEWVSMIAADGFTDYA
SSVKGRFTISRDNSKNTLYLQMNSLRAEDT
NYGVN
MIAADGFTDYASSVKG
EWHHGPVAY
NYGVSWVRQAPGKGLEWVSLIRGDGSTDYA
SSLKGRFTISRDNSKNTLYLQMNSLRAEDT
NYGVS
LIRGDGSTDYASSLKG
EWHHGPVAY
NYGVSWVRQAPGKGLEWVSMIWADGSTHYA
DTLKSRFTISRDNSKNTLYLQMNSLRAEDT
NYGVS
MIWADGSTHYADTLKS
EWQHGPVAY
NYGVTWVRQAPGKGLEWVSMIWADGSTDYA
DTVKGRFTISRDNSKNTLYLQMNSLRAEDT
NYGVT
MIWADGSTDYADTVKG
EWQHGPVAY
NYGVTWVRQAPGKGLEWVSMIWADGSTHYA
DSVKSRFTISRDNSKNTLYLQMNSLRAEDT
NYGVT
MIWADGSTHYADSVKS
EWQHGPLAY
NYGVTWVRQAPGKGLEWVSMIWSDGSTDYA
SSVKGRFTISRDNSKNTLYLQMNSLRAEDT
NYGVT
MIWSDGSTDYASSVKG
EWQHGPVAY
NYGVTWVRQAPGKGLEWVSMIWADGSTHYA
SSLKGRFTISRDNSKNTLYLQMNSLRAEDT
NYGVT
MIWADGSTHYASSLKG
EWQHGPAAY
NYGVSWVRQAPGKGLEWVSMIWADGSTHYA
SSLKGRFTISRDNSKNTLYLQMNSLRAEDT
NYGVS
MIWADGSTHYASSLKG
EWQHGPVAY
NYGVTWVRQAPGKGLEWVSMIWADGSTHYA
SSVKGRFTISRDNSKNTLYLQMNSLRAEDT
NYGVT
MIWADGSTHYASSVKG
EWQHGPAAY
NYGVTWVRQAPGKGLEWVSMIWADGSTHYA
SSVKGRFTISRDNSKNTLYLQMNSLRAEDT
NYGVT
MIWADGSTHYASSVKG
EWQHGPSAY
NYGVTWVRQAPGKGLEWVSMIWADGSTHYA
SSVKGRFTISRDNSKNTLYLQMNSLRAEDT
NYGVT
MIWADGSTHYASSVKG
EWQHGPVAY
NYGVEWVRQAPGKGLEWVSGIWADGSTHYA
DTVKSRFTISRDNSKNTLYLQMNSLRAEDT
NYGVE
GIWADGSTHYADTVKS
EWQHGPVAY
NYGVEWVRQAPGKGLEWVSGIWADGSTHYA
DTVKSRFTISRDNSKNTLYLQMNSLRAEDT
NYGVE
GIWADGSTHYADTVKS
EWQHGPVGY
NYGVEWVRQAPGKGLEWVSGIWADGSTHYA
DTVKSRFTISRDNSKNTLYLQMNSLRAEDT
NYGVE
GIWADGSTHYADTVKS
EWQHGPVGY
NYGVTWVRQAPGKGLEWVSMIWADGSTDYA
STVKGRFTISRDNSKNTLYLQMNSLRAEDT
NYGVT
MIWADGSTDYASTVKG
EWQHGPVGY
NYGVTWVRQAPGKGLEWVSMIWADGSTHYA
SSVKGRFTISRDNSKNTLYLQMNSLRAEDT
NYGVT
MIWADGSTHYASSVKG
EWQHGPVAY
NYGVTWVRQAPGKGLEWVSMIWADGSTHYA
DSVKSRFTISRDNSKNTLYLQMNSLRAEDT
NYGVT
MIWADGSTHYADSVKS
EWQHGPLAY
NYGVQWVRQAPGKGLEWVSGIGADGSTAYA
SSLKGRFTISRDNSKNTLYLQMNSLRAEDT
NYGVQ
GIGADGSTAYASSLKG
EWQHSGLAY
NYGVSWVRQAPGKGLEWVSMIWADGSTHYA
DTVKGRFTISRDNSKNTLYLQMNSLRAEDT
NYGVS
MIWADGSTHYADTVKG
EWQHGPLAY
NYGVTWVRQAPGKGLEWVSMIWADGSTHYA
DTVKGRFTISRDNSKNTLYLQMNSLRAEDT
NYGVT
MIWADGSTHYADTVKG
EWQHGPLAY
NYGVTWVRQAPGKGLEWVSMIWADGSTHYA
SSVKGRFTISRDNSKNTLYLQMNSLRAEDT
NYGVT
MIWADGSTHYASSVKG
EWQHGPVAY
NYGVTWVRQAPGKGLEWVSMIWADGSTHYA
SSVKGRFTISRDNSKNTLYLQMNSLRAEDT
NYGVT
MIWADGSTHYASSVKG
EWQHGPVAY
NYGVTWVRQAPGKGLEWVSMIWADGSTHYA
SSVKGRFTISRDNSKNTLYLQMNSLRAEDT
NYGVT
MIWADGSTHYASSVKG
EWQHGPVAY
NYGVTWVRQAPGKGLEWVSMIWADGSTHYA
SSVKGRFTISRDNSKNTLYLQMNSLRAEDT
NYGVT
MIWADGSTHYASSVKG
EWQHGPVAY
NYGVTWVRQAPGKGLEWVSMIWADGSTHYA
SSVKGRFTISRDNSKNTLYLQMNSLRAEDT
NYGVT
MIWADGSTHYASSVKG
EWQHGPVAY
SAVAWYQQKPGKAPKLLIYWASTRHTGVPS
HYSTPFTFGQGTKLEIKR
KASQAVSSAVA
WASTRHT
QQHYSTPFT
SAVAWYQQKPGKAPKLLIYWASTLHTGVPS
HYRTPFTFGQGTKLEIKR
RASQLVSSAVA
WASTLHT
QQHYRTPFT
SAVAWYQQKPGKAPKLLIYWASTRHSGVPS
HYRTPFSFGQGTKLEIKR
RASQLVSSAVA
WASTRHS
QQHYRTPFS
SAVAWYQQKPGKAPKLLIYWASTRHSGVPS
HYRTPFTFGQGTKLEIKR
RASQLVSSAVA
WASTRHS
QQHYRTPFT
SAVAWYQQKPGKAPKLLIYWASARHTGVPS
HYKTPFSFGQGTKLEIKR
RASQLVSSAVA
WASARHT
QQHYKTPFS
SAVAWYQQKPGKAPKLLIYWASARHTGVPS
HYKTPFTFGQGTKLEIKR
RASQLVSSAVA
WASARHT
QQHYKTPFT
SAVAWYQQKPGKAPKLLIYWASARHTGVPS
HYRTPFTFGQGTKLEIKR
RASQLVSSAVA
WASARHT
QQHYRTPFT
SAVAWYQQKPGKAPKLLIYWASTRHTGVPS
HYRTPFTFGQGTKLEIKR
RASQLVSSAVA
WASTRHT
QQHYRTPFT
SALAWYQQKPGKAPKLLIYWASALHSGVPS
HYSAPFTFGQGTKLEIKR
RASQGVSSALA
WASALHS
QQHYSAPFT
SAVAWYQQKPGKAPKLLIYWASTLHSGVPS
HYSTPFTFGQGTKLEIKR
RASQLVSSAVA
WASTLHS
QQHYSTPFT
SAVAWYQQKPGKAPKLLIYWASTRHTGVPS
HYSTPFTFGQGTKLEIKR
KASQLVSSAVA
WASTRHT
QQHYSTPFT
SAVAWYQQKPGKAPKLLIYWASTLHTGVPS
HYRTPFTFGQGTKLEIKR
KASQLVSSAVA
WASTLHT
QQHYRTPFT
SALAWYQQKPGKAPKLLIYWASALHSGVPS
HYRPPFTFGQGTKLEIKR
KASQKVSSALA
WASALHS
QQHYRPPFT
SAVAWYQQKPGKAPKLLIYWASALHTGVPS
HYSSPYTFGQGTKLEIKR
KASQLVSSAVA
WASALHT
QQHYSSPYT
SAVAWYQQKPGKAPKLLIYWASTLHTGVPS
HYRTPFTFGQGTKLEIKR
KASQLVSSAVA
WASTLHT
QQHYRTPFT
The mouse anti-human TNF antibody MAK-199 was humanized and affinity-matured to generate a panel of humanized MAK195 variants that have improved affinity and binding kinetics against both human and cyno TNF. Several libraries were made according to specifications below:
All four libraries were selected separately for the ability to bind human or cynomolgus monkey TNF in the presence of decreasing concentrations of biotinylated human or cynomolgus monkey TNF antigens. All mutated CDR sequences recovered from library selections were recombined into additional libraries and the recombined libraries were subjected to more stringent selection conditions before individual antibodies are identified.
Table 27 provides a list of amino acid sequences of VH of the hMAK-199 antibody which were subjected to the affinity maturation selection protocol Amino acid residues of individual CDRs of each VH sequence are indicated in bold.
TTVTVSS
Table 28 provides a list of amino acid sequences of VL regions of affinity matured fully human TNF antibodies derived from hMAK199 Amino acid residues of individual CDRs of each VL sequence are indicated in bold.
EIQLVQSGAEVKKPGASVKVSCKASGYTFTNYGMNWVRQAPGQGLEWMGWINTYTGEPTYAD
DFKG
RFTFTLDTSTSTAYMELSSLRSEDTAVYFCARKFLTTVVVTDYAMDYWGQGTTVTVSS
NYGIIWVRQAPGQGLEWMGWINTYTGKPTY
AQKFQGRVTMTTDTSTSTAYMELSSLRSED
NYGII
WINTYTGKPTYAQKFQG
RASQDISQYLN
NYGIIWVRQAPGQGLEWMGWINTYTGKPTY
AQKLQGRVTMTTDTSTSTAYMELSSLRSED
NYGII
WINTYTGKPTYAQKLQG
KLFNTVDVTDNAMD
NYGIIWVRQAPGQGLEWMGWINTYTGVPTY
AQKFQGRVTMTTDTSTSTAYMELSSLRSED
NYGII
WINTYTGVPTYAQKFQG
KLFNTVDVTDNAMD
NYGIIWVRQAPGQGLEWMGWINTYTGKPTY
AQKFQGRVTMTTDTSTSTAYMELSSLRSED
NYGII
WINTYTGKPTYAQKFQG
KLFNTVAVTDNAMD
NYGIIWVRQAPGQGLEWMGWINTYTGKPTY
AQKFQGRVTMTTDTSTSTAYMELSSLRSED
NYGII
WINTYTGKPTYAQKFQG
KLFTTVDVTDNAMD
NYGINWVRQAPGQGLEWMGWINTYTGKPTY
AQKFQGRVTMTTDTSTSTAYMELSSLRSED
NYGIN
WINTYTGKPTYAQKFQG
KFRNTVAVTDYAMD
NYGITWVRQAPGQGLEWMGWINTYTGKPTY
AQKFQGRVTMTTDTSTSTAYMELSSLRSED
NYGIT
WINTYTGKPTYAQKFQG
KLFTTMDVTDNAMD
NYGIIWVRQAPGQGLEWMGWINTYTGKPTY
AQKFQGRVTMTTDTSTSTAYMELSSLRSED
NYGII
WINTYTGKPTYAQKFQG
KLFTTMDVTDNAMD
NYGINWVRQAPGQGLEWMGWINTYTGQPSY
AQKFQGRVTMTTDTSTSTAYMELSSLRSED
NYGIN
WINTYTGQPSYAQKFQG
KLFKTEAVTDYAMD
NYGIIWVRQAPGQGLEWMGWINTYSGKPTY
AQKFQGRVTMTTDTSTSTAYMELSSLRSED
NYGII
WINTYSGKPTYAQKFQG
KLFTTMDVTDNAMD
QYLNWYQQKPGKAPKLLIYYTSRLQSGVPS
GNTWPPTFGQGTKLEIK
RASQDISQYLN
YTSRLQS
QQGNTWPPT
NYLNWYQQKPGKAPKLLIYYTSRLQSGVPS
GNSWPPTFGQGTKLEIK
RASQDISNYLN
YTSRLQS
QQGNSWPPT
NYLNWYQQKPGKAPKLLIYYTSRLQSGVPS
GNTQPPTFGQGTKLEIK
RASQDIYNYLN
YTSRLQS
QQGNTQPPT
NYLNWYQQKPGKAPKLLIYYTSRLQSGVPS
GNTQPPTFGQGTKLEIK
RASQDIENYLN
YTSRLQS
QQGNTQPPT
NYLNWYQQKPGKAPKLLIYYTSRLQSGVPS
GNTWPPTFGQGTKLEIK
RASQDISNYLN
YTSRLQS
QQGNTWPPT
DVLNWYQQKPGKAPKLLIYYASRLQSGVPS
GITLPPTFGQGTKLEIK
RASQDIYDVLN
YASRLQS
QQGITLPPT
NYLNWYQQKPGKAPKLLIYYTSRLQSGVPS
GNTWPPTFGQGTKLEIK
RASQDISNYLN
YTSRLQS
QQGNTWPPT
QYLNWYQQKPGKAPKLLIYYTSRLQSGVPS
GNTWPPTFGQGTKLEIK
RASQDISQYLN
YTSRLQS
QQGNTWPPT
NVLNWYQQKPGKAPKLLIYYASRLQSGVPS
GNTMPPTFGQGTKLEIK
RASQNIYNVLN
YASRLQS
QQGNTMPPT
NFLNWYQQKPGKAPKLLIYYTSRLQSGVPS
GNTQPPTFGQGTKLEIK
RASQDISNFLN
YTSRLQS
QQGNTQPPT
The BIACORE assay (Biacore, Inc. Piscataway, N.J.) determines the affinity of binding proteins with kinetic measurements of on-rate and off-rate constants. Binding of binding proteins to a target antigen (for example, a purified recombinant target antigen) is determined by surface plasmon resonance-based measurements with a Biacore® 1000 or 3000 instrument (Biacore® AB, Uppsala, Sweden) using running HBS-EP (10 mM HEPES [pH 7.4], 150 mM NaCl, 3 mM EDTA, and 0.005% surfactant P20) at 25° C. All chemicals are obtained from Biacore® AB (Uppsala, Sweden) or otherwise from a different source as described in the text. For example, approximately 5000 RU of goat anti-mouse IgG, (Fcγ), fragment specific polyclonal antibody (Pierce Biotechnology Inc, Rockford, Ill., US) diluted in 10 mM sodium acetate (pH 4.5) is directly immobilized across a CM5 research grade biosensor chip using a standard amine coupling kit according to manufacturer's instructions and procedures at 25 μg/ml. Unreacted moieties on the biosensor surface are blocked with ethanolamine. Modified carboxymethyl dextran surface in flowcell 2 and 4 is used as a reaction surface. Unmodified carboxymethyl dextran without goat anti-mouse IgG in flow cell 1 and 3 is used as the reference surface. For kinetic analysis, rate equations derived from the 1:1 Langmuir binding model are fitted simultaneously to association and dissociation phases of all eight injections (using global fit analysis) with the use of Biaevaluation 4.0.1 software. Purified antibodies are diluted in HEPES-buffered saline for capture across goat anti-mouse IgG specific reaction surfaces. Antibodies to be captured as a ligand (25 μg/ml) are injected over reaction matrices at a flow rate of 5 μl/minute. The association and dissociation rate constants, kon (M−1s−1) and koff (s−1), are determined under a continuous flow rate of 25 μl/minute. Rate constants are derived by making kinetic binding measurements at different antigen concentrations ranging from 10-200 nM. The equilibrium dissociation constant (M) of the reaction between antibodies and the target antigen is then calculated from the kinetic rate constants by the following formula: KD=koff/kon. Binding is recorded as a function of time and kinetic rate constants are calculated. In this assay, on-rates as fast as 106 M−1s−1 and off-rates as slow as 10−6 s−1 can be measured.
The binding proteins herein are expected to have beneficial properties in this regard, including high affinity, slow off rate, and high neutralizing capacity.
L929 cells are grown to a semi-confluent density and harvested using 0.25% trypsin (Gibco #25300). The cells are washed with PBS, counted and resuspended at 1E6 cells/mL in assay media containing 4 μg/mL actinomycin D. The cells are seeded in a 96-well plate (Costar #3599) at a volume of 100 μL and 5E4 cells/well. The binding proteins and control IgG are diluted to a 4× concentration in assay media and serial 1:4 dilutions are performed. The huTNF-α is diluted to 400 pg/mL in assay media. Binding protein sample (200 μL) is added to the huTNF-α (200 μL) in a 1:2 dilution scheme and allowed to incubate for 0.5 hour at room temperature.
The binding protein/human TNF-α solution is added to the plated cells at 100 μL for a final concentration of 100 pg/mL huTNF-α and 150 nM-0.0001 nM binding protein. The plates are incubated for 20 hours at 37° C., 5% CO2. To quantitate viability, 100 μL is removed from the wells and 10 μL of WST-1 reagent (Roche cat #11644807001) is added. Plates are incubated under assay conditions for 3.5 hours. The plates are read at OD 420-600 nm on a Spectromax 190 ELISA plate reader.
The binding proteins herein are expected to have beneficial properties in this regard, including high affinity, slow off rate, and high neutralizing capacity.
A patient requiring treatment with a TNF-α binding protein may have a disease with immune and inflammatory elements, such as autoimmune diseases, particularly those assocated with inflammation, including Crohn's disease, psoriasis (including plaque psoriasis), arthritis (including rheumatoid arthritis, psoratic arthritis, osteoarthritis, or juvenile idiopathic arthritis), multiple sclerosis, and ankylosing spondylitis. Therefore, the binding proteins herein may be used to treat these disorders.
Administration of the TNF-α binding protein may occur by subcutaneous injection. If the patient has rheumatoid arthritis, psoratic arthritis, or ankylosing spondyitis, the patient may receive 40 mg every other week as a starting dose and 40 mg every week, if necessary to achieve treatment goals. If the patient has juvenile idiopathic arthritis and weighs from 15 kg to <30 kg, the patient may receive 20 mg every other week, and if ≧30 kg, 40 mg every other week. If the patient has Crohn's disease, the patient may receive an initial dose of 160 mg (four 40 mg injections in one day or two 40 mg injections per day for two consecutive days) followed by 80 mg two weeks later, and another two weeks later begin a maintenance dose of 40 mg every other week. If the patient has plaque psoriasis, the patient may receive an 80 mg initial dose, followed by 40 mg every other week starting one week after initial dose.
The binding protein may be provided in a single-use prefilled pen (40 mg/0.8 mL), a single-use prefilled glass syringe (40 mg/0.8 mL or 20 mg/0.4 mL).
The contents of all cited references (including literature references, patents, patent applications, and websites) that are cited throughout this application are hereby expressly incorporated by reference in their entirety, as are the references cited therein. The practice disclosed herein will employ, unless otherwise indicated, conventional techniques of immunology, molecular biology and cell biology, which are well known in the art.
The invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The foregoing embodiments are therefore to be considered in all respects illustrative rather than limiting of the invention described herein. Scope of the invention is thus indicated by the appended claims rather than by the foregoing description, and all changes that come within the meaning and range of equivalency of the claims are therefore intended to be embraced herein.
This application claims priority to U.S. Provisional Application Ser. No. 61/550,587, filed Oct. 24, 2011, which is incorporated herein by reference in its entirety.
| Number | Date | Country | |
|---|---|---|---|
| 61550587 | Oct 2011 | US |
