[Immune checkpoint inhibitors] are a class of drugs designed to block the inhibitory signals that prevent T cells from attacking cancer cells. These drugs target checkpoint proteins such as PD-1, PD-L1, and CTLA-4, which are often exploited by tumors to suppress the immune response. By blocking these checkpoints, immune checkpoint inhibitors can enhance the ability of T cells to recognize and destroy cancer cells. These therapies have shown promising results in various types of cancer, including melanoma, lung cancer, and renal cell carcinoma.
