Fig. 2From: Immune checkpoint inhibitors of PD-L1 as cancer therapeuticsPD-1 and PD-L1 interaction of tumor cells and antigen-presenting cells (APC) with T cells that inhibit immune response. IFNγ help induce or maintain the expression of PD-L1. Anti-PD-L1 inhibits the interaction between PD-1 and PD-L1Back to article page