several human biologic response modifiers , including huifn-gamma , huifn-beta , huifn-alpha , interleukin 2 ( huil-2 ) , and tumor necrosis factor alpha , have now been assessed for their ability to enhance tryptophan degradation in human peripheral blood mononuclear cell ( pmc ) cultures .
C0021756
interleukin 2
C0086418
human