The defects in effector generation associated with aging can be reversed by addition of IL-2 but not other related gamma(c)-receptor binding cytokines.
Haynes L, Eaton SM, Swain SL. The defects in effector generation associated with aging can be reversed by addition of IL-2 but not other related gamma(c)-receptor binding cytokines. Vaccine. 2000 Feb 25; 18(16):1649-53.