Abstract: The disclosure provides for antibodies that bind CD40, including a humanized antibody and a chimeric antibody with different Fc domains. The antibodies bind CD40 and do not exhibit CD40 agonist activity. The antibodies may comprise a modified IgG1 Fc domain, and exhibit minimal activation of immature dendritic cells. Compositions comprising antibodies, methods of use for treatment of diseases involving CD40 activity, and use in the preparation of a medicament for treatment of a disease involving CD40 activity are provided.

Abstract: Disclosed are domain antibodies that monovalently bind CD28. Domain antibodies that are monovalent for binding of CD28 can inhibit CD28 activity. In one aspect, a domain antibody consists of or comprises a single immunoglobulin variable domain that specifically binds and antagonizes the activity of CD28, in an aspect, without substantially agonizing CD28 activity. In another aspect, the domain antibody is a human domain antibody. The disclosure further encompasses methods of antagonizing CD80 and/or CD86 interactions with CD28 in an individual and methods of treating diseases or disorders involving CD80 and/or CD86 interactions with CD28, the methods involving administering a domain antibody to the individual.

Abstract: Disclosed are domain antibodies that monovalently bind CD28. Domain antibodies that are monovalent for binding of CD28 can inhibit CD28 activity. In one aspect, a domain antibody consists of or comprises a single immunoglobulin variable domain that specifically binds and antagonizes the activity of CD28, in an aspect, without substantially agonizing CD28 activity. In another aspect, the domain antibody is a human domain antibody. The disclosure further encompasses methods of antagonizing CD80 and/or CD86 interactions with CD28 in an individual and methods of treating diseases or disorders involving CD80 and/or CD86 interactions with CD28, the methods involving administering a domain antibody to the individual.

Abstract: Antibody polypeptides that specifically bind human CD40L are provided. The antibody polypeptides do not activate platelets. The antibody polypeptides are useful in the treatment of diseases involving CD40L activation, such as graft-related diseases and autoimmune diseases. The antibody polypeptides may be domain antibodies (dAbs) comprising a single VH or VK domain. The half-life of the antibody polypeptides may be increased by modifying the antibody polypeptides to be dual specific reagents that can also bind human serum albumin (HSA) or another antigen.

Abstract: Antibody polypeptides that specifically bind human CD40L are provided. The antibody polypeptides do not activate platelets. The antibody polypeptides are useful in the treatment of diseases involving CD40L activation, such as graft-related diseases and autoimmune diseases. The antibody polypeptides may be domain antibodies (dAbs) comprising a single VH or VK domain. The half-life of the antibody polypeptides may be increased by modifying the antibody polypeptides to be dual specific reagents that can also bind human serum albumin (HSA) or another antigen.

Abstract: A method of treating an inflammatory bowel disease is provided. The method comprises administration of an antibody polypeptide that specifically binds a novel epitope of human CD40. The antibody polypeptides do not exhibit CD40 agonist activity. The antibody polypeptides may be fusions of a domain antibody (dAb) comprising a single VL or VH domain and an Fc domain.

Abstract: Antibody polypeptides that specifically bind human CD40L are provided. The antibody polypeptides do not activate platelets. The antibody polypeptides are useful in the treatment of diseases involving CD40L activation, such as graft-related diseases and autoimmune diseases. The antibody polypeptides may be domain antibodies (dAbs) comprising a single VH or VK domain. The half-life of the antibody polypeptides may be increased by modifying the antibody polypeptides to be dual specific reagents that can also bind human serum albumin (HSA) or another antigen.

Abstract: Antibody polypeptides that specifically bind human CD40L are provided. The antibody polypeptides do not activate platelets. The antibody polypeptides are useful in the treatment of diseases involving CD40L activation, such as graft-related diseases and autoimmune diseases. The antibody polypeptides may be domain antibodies (dAbs) comprising a single VH or VK domain. The half-life of the antibody polypeptides may be increased by modifying the antibody polypeptides to be dual specific reagents that can also bind human serum albumin (HSA) or another antigen.

Abstract: Disclosed are domain antibodies that monovalently bind CD28. Domain antibodies that are monovalent for binding of CD28 can inhibit CD28 activity. In one aspect, a domain antibody consists of or comprises a single immunoglobulin variable domain that specifically binds and antagonizes the activity of CD28, in an aspect, without substantially agonizing CD28 activity. In another aspect, the domain antibody is a human domain antibody. The disclosure further encompasses methods of antagonizing CD80 and/or CD86 interactions with CD28 in an individual and methods of treating diseases or disorders involving CD80 and/or CD86 interactions with CD28, the methods involving administering a domain antibody to the individual.

Abstract: Disclosed are domain antibodies that monovalently bind CD28. Domain antibodies that are monovalent for binding of CD28 can inhibit CD28 activity. In one aspect, a domain antibody consists of or comprises a single immunoglobulin variable domain that specifically binds and antagonizes the activity of CD28, in an aspect, without substantially agonizing CD28 activity. In another aspect, the domain antibody is a human domain antibody. The disclosure further encompasses methods of antagonizing CD80 and/or CD86 interactions with CD28 in an individual and methods of treating diseases or disorders involving CD80 and/or CD86 interactions with CD28, the methods involving administering a domain antibody to the individual.

Abstract: Antibody polypeptides that specifically bind human CD40L are provided. The antibody polypeptides do not activate platelets. The antibody polypeptides are useful in the treatment of diseases involving CD40L activation, such as graft-related diseases and autoimmune diseases. The antibody polypeptides may be domain antibodies (dAbs) comprising a single VH or VK domain. The half-life of the antibody polypeptides may be increased by modifying the antibody polypeptides to be dual specific reagents that can also bind human serum albumin (HSA) or another antigen.

Abstract: Antibody polypeptides that specifically bind human CD40L are provided. The antibody polypeptides do not activate platelets. The antibody polypeptides are useful in the treatment of diseases involving CD40L activation, such as graft-related diseases and autoimmune diseases. The antibody polypeptides may be domain antibodies (dAbs) comprising a single VH or VK domain. The half-life of the antibody polypeptides may be increased by modifying the antibody polypeptides to be dual specific reagents that can also bind human serum albumin (HSA) or another antigen.

Abstract: Antibody polypeptides that specifically bind human CD40L are provided. The antibody polypeptides do not activate platelets. The antibody polypeptides are useful in the treatment of diseases involving CD40L activation, such as graft-related diseases and autoimmune diseases. The antibody polypeptides may be domain antibodies (dAbs) comprising a single VH or VK domain. The half-life of the antibody polypeptides may be increased by modifying the antibody polypeptides to be dual specific reagents that can also bind human serum albumin (HSA) or another antigen.

Abstract: Antibody polypeptides that specifically bind human CD40L are provided. The antibody polypeptides do not activate platelets. The antibody polypeptides are useful in the treatment of diseases involving CD40L activation, such as graft-related diseases and autoimmune diseases. The antibody polypeptides may be domain antibodies (dAbs) comprising a single VH or VK domain. The half-life of the antibody polypeptides may be increased by modifying the antibody polypeptides to be dual specific reagents that can also bind human serum albumin (HSA) or another antigen.

Abstract: Disclosed are domain antibodies that monovalently bind CD28. Domain antibodies that are monovalent for binding of CD28 can inhibit CD28 activity. In one aspect, a domain antibody consists of or comprises a single immunoglobulin variable domain that specifically binds and antagonizes the activity of CD28, in an aspect, without substantially agonizing CD28 activity. In another aspect, the domain antibody is a human domain antibody. The disclosure further encompasses methods of antagonizing CD80 and/or CD86 interactions with CD28 in an individual and methods of treating diseases or disorders involving CD80 and/or CD86 interactions with CD28, the methods involving administering a domain antibody to the individual.

Abstract: Disclosed are domain antibodies that monovalently bind CD28. Domain antibodies that are monovalent for binding of CD28 can inhibit CD28 activity. In one aspect, a domain antibody consists of or comprises a single immunoglobulin variable domain that specifically binds and antagonizes the activity of CD28, in an aspect, without substantially agonizing CD28 activity. In another aspect, the domain antibody is a human domain antibody. The disclosure further encompasses methods of antagonizing CD80 and/or CD86 interactions with CD28 in an individual and methods of treating diseases or disorders involving CD80 and/or CD86 interactions with CD28, the methods involving administering a domain antibody to the individual.

Abstract: Disclosed are domain antibodies that monovalently bind CD28. Domain antibodies that are monovalent for binding of CD28 can inhibit CD28 activity. In one aspect, a domain antibody consists of or comprises a single immunoglobulin variable domain that specifically binds and antagonizes the activity of CD28, in an aspect, without substantially agonizing CD28 activity. In another aspect, the domain antibody is a human domain antibody. The disclosure further encompasses methods of antagonizing CD80 and/or CD86 interactions with CD28 in an individual and methods of treating diseases or disorders involving CD80 and/or CD86 interactions with CD28, the methods involving administering a domain antibody to the individual.

Abstract: Disclosed are domain antibodies that monovalently bind CD28. Domain antibodies that are monovalent for binding of CD28 can inhibit CD28 activity. In one aspect, a domain antibody consists of or comprises a single immunoglobulin variable domain that specifically binds and antagonizes the activity of CD28, in an aspect, without substantially agonizing CD28 activity. In another aspect, the domain antibody is a human domain antibody. The disclosure further encompasses methods of antagonizing CD80 and/or CD86 interactions with CD28 in an individual and methods of treating diseases or disorders involving CD80 and/or CD86 interactions with CD28, the methods involving administering a domain antibody to the individual.

Abstract: Disclosed are domain antibodies that monovalently bind CD28. Domain antibodies that are monovalent for binding of CD28 can inhibit CD28 activity. In one aspect, a domain antibody consists of or comprises a single immunoglobulin variable domain that specifically binds and antagonizes the activity of CD28, in an aspect, without substantially agonizing CD28 activity. In another aspect, the domain antibody is a human domain antibody. The disclosure further encompasses methods of antagonizing CD80 and/or CD86 interactions with CD28 in an individual and methods of treating diseases or disorders involving CD80 and/or CD86 interactions with CD28, the methods involving administering a domain antibody to the individual.

Abstract: The present invention provides novel polynucleotides encoding human phosphatase polypeptides, fragments and homologues thereof. Also provided are vectors, host cells, antibodies, and recombinant and synthetic methods for producing said polypeptides. The invention further relates to diagnostic and therapeutic methods for applying these novel human phosphatase polypeptides to the diagnosis, treatment, and/or prevention of various diseases and/or disorders related to these polypeptides, particularly cardiovascular diseases and/or disorders. The invention further relates to screening methods for identifying agonists and antagonists of the polynucleotides and polypeptides of the present invention.