Il-12/p40 binding proteins

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 15/13 (2006.01) A61K 35/12 (2006.01) A61K 39/395 (2006.01) A61P 37/02 (2006.01) C07K 14/715 (2006.01) C07K 16/24 (2006.01) C07K 17/02 (2006.01) C12N 1/19 (2006.01) C12N 1/21 (2006.01) C12N 5/10 (2006.01) C12N 15/63 (2006.01) C12P 21/00 (2006.01) C07K 14/54 (2006.01)

Patent

CA 2612239

The present invention encompasses IL-12p40 binding proteins, particularly antibodies that bind human interleukin-12 (hIL-12) and/or human IL-23 (hIL- 23). Specifically, the invention relates to antibodies that are chimeric, CDR grafted and humanized antibodies. Preferred antibodies have high affinity for hIL-12 and/or hIL-23 and neutralize h IL-12 and/or hIL-23 activity in vitro and in vivo. An antibody of the invention can be a full-length antibody or an antigen-binding portion thereof. Method of making and method of using the antibodies of the invention are also provided. The antibodies, or antibody portions, of the invention are useful for detecting hIL-12 and/or hIL-23 and for inhibiting hIL-12 and/or hIL-23 activity, e.g., in a human subject suffering from a disorder in which hIL-12 and/or hIL-23 activity is detrimental.

La présente invention concerne des protéines de liaison à l'IL-12p40, en particulier des anticorps qui se lient à l'interleukine-12 humaine (hIL-12) et/ou à l'interleukine-23 humaine (hIL-23). Cette invention concerne spécifiquement des anticorps qui sont des anticorps chimères, à greffage de CDR et humanisés. Des anticorps préférés présentent une forte affinité pour l'interleukine-12 humaine et/ou l'interleukine-23 humaine et neutralisent l'activité de l'interleukine-12 humaine et/ou de l'interleukine-23 humaine in vitro et in vivo. Un anticorps de cette invention peut être un anticorps complet ou une partie de liaison à l'antigène de celui-ci. Cette invention concerne également un procédé de production et un procédé d'utilisation des anticorps de cette invention. Les anticorps ou les parties d'anticorps de cette invention servent à détecter l'interleukine-12 humaine et/ou l'interleukine-23 humaine et à inhiber l'activité de l'interleukine-12 humaine et/ou de l'interleukine-23 humaine, par exemple chez un sujet humain souffrant d'un trouble dans lequel l'activité de l'interleukine-12 humaine et/ou de l'interleukine-23 humaine est nuisible.

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