T-cell receptor antibodies and methods of use thereof

C - Chemistry – Metallurgy – 07 – K

Patent

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Details

C07K 16/28 (2006.01) A61K 39/395 (2006.01) C07K 16/46 (2006.01) C12N 15/13 (2006.01) C12P 21/08 (2006.01)

Patent

CA 2735193

The present invention is directed to the production and use of monoclonal antibodies, or antigen binding fragments thereof, that specifically bind the T cell antigen receptor (TCR) and their use for immunomodulation. In preferred embodiments, the antibody or antigen binding fragment of the invention specifically binds the constant region of the alpha chain of the TCR, or otherwise specifically binds the alpha chain regardless of TCR clonal origin (i.e., is pan specific for TCR). The antibodies of the invention may be used, for example, in immunosuppressive therapies for transplant maintenance and the treatment of autoimmune diseases, and/or as targeting molecules for use in the treatment of T-cell malignancies.

La présente invention concerne la production et lutilisation danticorps monoclonaux, ou des fragments de ceux-ci se liant à lantigène, qui se lient spécifiquement au récepteur de lantigène des lymphocytes T (TCR), et leur utilisation pour l'immunomodulation. Dans des modes de réalisation préférés, l'anticorps ou le fragment se liant à l'antigène de l'invention se lie spécifiquement à la région constante de la chaîne alpha du TCR, ou bien se lie spécifiquement à la chaîne alpha quelle que soit l'origine clonale du TCR (à savoir qui est pan-spécifique du TCR). Les anticorps de linvention peuvent être utilisés, par exemple, dans des thérapies immunosuppressives pour le maintien des transplantations et le traitement de maladies autoimmunes, et/ou comme molécules de ciblage destinées à être utilisées dans le traitement de malignités dans les lymphocytes T.

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