Alternative Name(s): Cluster of Differentiation 137, tumor necrosis factor receptor superfamily member 9 (TNFRSF9), 4-1BB, induced by lymphocyte activation (ILA)


Test Description

CD137 is a member of the tumor necrosis factor receptor family and is predominantly expressed on activated T lymphocytes and natural killer cells. CD137 is also expressed on chondrocytes, blood vessels, and some tumor cells.