CD137 as a costimulatory molecular could promote the survival of aged T lymphocyte and increase IL-2 secretion, which help improve the function of aged T cell.

• CD137作为T细胞活化的共刺激分子能促进衰老T细胞活化后的存活及IL2的分泌,这有助于提高衰老T细胞的功能。