Methods Bel-7402 cells in vitro were given 5, 10, 20, 30, 40 and 50 nmol/L different concentrations of rapamycin, and the cell growth inhibiting ratio of Bel-7402 was assessed by MTT assay.

• 方法以5、10、20、30、40和50nmol/L不同浓度的RAPA作用于体外培养的Bel-7402细胞,MTT法检测细胞生长抑制率;