Interleukin-2 ( IL-2 ) rapidly activated Stat5 in fresh PBL , and Stat3 and Stat5 in preactivated PBL .
interleukin-2 ( il-2 ) rapidly activated stat5 in fresh pbl , and stat3 and stat5 in preactivated pbl .
B-protein_molecule O B-protein_molecule O O O B-protein_molecule O O B-cell_type O O B-protein_molecule O B-protein_molecule O B-cell_type I-cell_type O