anti-PD-1 human monoclonal antibody MDX-1106

Definition / meaning of anti-PD-1 human monoclonal antibody MDX-1106

A fully human monoclonal antibody directed against the negative immunoregulatory human cell surface receptor PD-1 (programmed death-1 or programmed cell death-1/PCD-1) with immunopotentiation activity. Anti-PD-1 human monoclonal antibody MDX-1106 binds to and blocks the activation of PD-1, an Ig superfamily transmembrane protein, by its ligands PD-L1 and PD-L2, resulting in the activation of T-cells and cell-mediated immune responses against tumor cells or pathogens.Activated PD-1 negatively regulates T-cell activation and effector function through the suppression of P13k/Akt pathway activation.

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