Fig. 1From: The role of CD38 in HIV infectionThe activation of lymphocytes results in a vicious cycle. Persistent chronic overactivation of CD4+ T lymphocytes and CD8+ T lymphocytes after HIV infection, with significantly elevated levels of CD38 expression, which may predispose CD4+ T cells to HIV infection and further promote HIV replication, and as CD4+ T lymphocytes are depleted, the disease continues to progress, forming a cycleBack to article page