Antibodies against human il-12

C - Chemistry – Metallurgy – 07 – K

Patent

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Details

C07K 16/24 (2006.01) A61K 39/395 (2006.01) C12N 5/20 (2006.01) C12P 21/08 (2006.01)

Patent

CA 2318052

The present invention relates to p75 heterodimer specific anti-human IL-12 antibodies that are characterized by a higher potency and greater efficacy in neutralizing human IL-12 bioactivity than known heterodimer specific IL-12 monoclonal antibodies. The heterodimer specific antibodies recognize one or more epitopes of the human IL-12 p75 heterodimer, but do not bind to the p40 subunit alone. The heterodimer specific IL-12 antibodies neutralize rhesus monkey IL-12 bioactivity with a potency similar to their potency for neutralizing human IL-12 bioactivity making them useful IL-12 antagonists.

La présente invention concerne des anticorps anti-IL-12 humaine à hétérodimère p75 spécifique, se caractérisant par une plus grande puissance et une plus grande efficacité dans la neutralisation de la bioactivité d'IL-12 humaine que les anticorps monoclonaux connus anti-IL-12 à hétérodimère spécifique. Les anticorps à hétérodimère spécifique reconnaissent un ou plusieurs épitopes de l'hétérodimère p75 d'IL-12 humaine, mais ne se lient pas à la sous-unité p40 seule. Les anticorps anti-IL-12 à hétérodimère spécifique neutralisent la bioactivité d'IL-12 de singe rhésus avec une puissance similaire à celle permettant de neutraliser la bioactivité d'IL-12 humaine, ce qui en fait des antagonistes utiles d'IL-12.

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