immune responses assessed in each rat were specific antibody synthesis , delayed-type hypersensitivity ( dth ) , natural killer cell ( nkc ) cytotoxicity and production of three immunoregulatory cytokines , interleukin 1 ( il1 ) , interleukin 2 ( il2 ) and prostaglandin e2 ( pge2 ) .
C0301872
immune responses
C0021756
interleukin 2