the levels of interleukin 2 ( il-2 ) , interleukin 2 receptor ( il-2r ) , and interferon-gamma ( ifn-gamma ) specific mrna and their gene products were examined in phorbol myristate acetate ( pma ) and calcium ionophore a23187-costimulated purified t cells from young and elderly humans .
C0021756
interleukin 2
C0086418
humans