Objective: To investigate the effect of methionine enkephalin on the proliferation of cultured NIH3T3 cells and human hepatoma Bel7402 cells.

• 目的 :研究甲硫氨酸脑啡肽对体外培养的NIH3T3细胞、人肝癌Bel740 2细胞增殖的影响。