Unlike IL-12 , which acts only on Th1 cells , IFN-alpha /beta can activate Stat4 not only in human Th1 , but also in Th2 cells .
unlike il-12 , which acts only on th1 cells , ifn-alpha /beta can activate stat4 not only in human th1 , but also in th2 cells .
O B-protein_molecule O O O O O B-cell_type I-cell_type O B-protein_molecule O O O B-protein_molecule O O O B-cell_type I-cell_type O O O O B-cell_type I-cell_type O