hiv-1 gp120 exhibited a dose-dependent immunosuppressive effect on : 1 ) ag-driven proliferation of cloned cd4+ lymphocytes , 2 ) okt3-driven proliferation of cloned cd4+ lymphocytes , and 3 ) cytolytic activity of cd4+ , ebv-specific ctl .
C0021080
immunosuppressive effect
C0085379
okt3