recombinant human interleukin ( il ) -1 , il-2 , il-4 , interferon ( inf ) -beta 1 , inf-gamma , granulocyte-macrophage colony-stimulating factor ( gm-csf ) , tumor necrosis factor ( tnf ) -alpha , or partially purified low molecular weight b-cell growth factor ( bcgf ) failed to provide the same enhancement of ig synthesis .
C0086418
human
C0021756
il-2