Human antibodies that bind the P40 subunit of human IL-12 and methods for using the same

摘要

Human antibodies, preferably recombinant human antibodies, that specifically bind to human interleukin-12 (hIL-12) are disclosed. Preferred antibodies have high affinity for hIL-12 and neutralize hIL-12 activity in vitro and in vivo. An antibody of the invention can be a full-length antibody or an antigen-binding portion thereof. The antibodies, or antibody portions, of the invention are useful for detecting hIL-12 and for inhibiting hIL-12 activity, e.g., in a human subject suffering from a disorder in which hIL-12 activity is detrimental. Nucleic acids, vectors and host cells for expressing the recombinant human antibodies of the invention, and methods of synthesizing the recombinant human antibodies, are also encompassed by the invention.

主权项

1. An isolated human antibody, or antigen-binding portion thereof, which is capable of binding to the p40 subunit of human interleukin 12 (IL-12) and dissociates from human IL-12 with a koff rate constant of about 1×10−4 s−1 to 1×10−5 s−1, as determined by surface plasmon resonance, wherein the antibody is capable of binding to a first heterodimer and is also capable of binding to a second heterodimer, wherein the first heterodimer comprises the p40 subunit of human IL-12 and the p35 subunit of human IL-12, and wherein the second heterodimer comprises the p40 subunit of human IL-12 and a p19 subunit.