Downmodulating an immune response with multivalent antibodies to PD-1
First Claim
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1. A method for downmodulating an immune response comprising contacting an immune cell expressing PD-1 with an agent that binds to PD-1, wherein the agent comprises an antibody to PD-1 in multivalent form, such that a negative signal is transduced via PD-1 to thereby downmodulate the immune response.
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Abstract
The invention identifies PD-1 as a receptor for B7-4. B7-4 can inhibit immune cell activation upon binding to an inhibitory receptor on an immune cell. Accordingly, the invention provides agents for modulating PD-1, B7-4, and the interaction between B7-4 and PD-1 in order to modulate a costimulatory or an inhibitory signal in a immune cell resulting in modulation of the immune response.
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9 Claims
- 1. A method for downmodulating an immune response comprising contacting an immune cell expressing PD-1 with an agent that binds to PD-1, wherein the agent comprises an antibody to PD-1 in multivalent form, such that a negative signal is transduced via PD-1 to thereby downmodulate the immune response.
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