PD-L1

PD-L1 Testing in Cancer

PD-L1 (programmed death-ligand 1) is a protein found on the surface of cells — including cancer cells and immune cells within tumours — that acts as a brake on the immune system. Under normal circumstances, PD-L1 helps prevent the immune system from attacking healthy tissue by binding to a receptor called PD-1 on T cells, …
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What is PD-L1?

PD-L1 (Programmed Death-Ligand 1) is a protein found on the surface of many normal cells and certain cancer cells. It is part of a natural system in the body called an immune checkpoint, which helps regulate your immune system and prevents it from becoming overactive. Specifically, PD-L1 interacts with another protein called PD-1, which is …
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