摘要目的 探讨基质金属蛋白酶抑制剂MMI-166对人胰腺癌SW1990细胞增殖和凋亡的影响.方法 应用不同浓度(25、50、100μg/ml)的MMI-166处理人胰腺癌SW1990细胞24、48 h.用四甲基偶氮唑蓝(MTT)法检测细胞增殖抑制率；采用Annexin V-PI法检测细胞凋亡,流式细胞术检测细胞凋亡率.结果 25、50、100μg/ml MMI-166处理细胞24h后,细胞生长抑制率分别为(34.23±3.87)％、(44.81±2.01)％、(53.91±1.74)％;48 h的抑制率为(39.95±1.83)％、(52.26±3.46)％、(63.20±2.48)％,呈浓度及时间依赖性.24h的细胞凋亡率分别为(4.17±0.55)％、(8.22±0.70)％、( 14.10±0.44)％；48 h的细胞凋亡率为(11.19±0.47)％、(23.01±0.53)％、(28.10±0.52)％,均显著高于对照组的(0.09±0.12)％(P＜0.05).结论 MMI-166以浓度和时间依赖性抑制胰腺癌SW1990细胞增殖,诱导细胞凋亡.

abstractsObjective To investigate the effects of MMI-166 on the proliferation and apoptosis of human pancreatic cancer SW1990 cells.Methods MMI-166 of different concentrations (25,50,100 μg/ml) were used to treat human pancreatic cancer SW1990 cell for 24,48 h.Effect of MMI-166 on cell proliferation was detected by 3- (4,5-dimethyl-2-thiazole) -2-5-biphenly-tetrazole bromide ( MTT ) method and effect on cell apoptosis was tested by Annexin V-PI method and flow cytometry (FCM).Results Twenty-four hours after MMI-166 treatment of different concentrations (25,50,100 μg/ml),the inhibitory rates of the cells were (34.23±3.87)％,(44.81 ±2.01)％,(53.91 ±1.74)％,and the corresponding values were (39.95 ± 1.83) ％,( 52.26 ± 3.46 ) ％,( 63.20 ± 2.48 ) ％ at 48 h,which suggested a time-and concentrationdependent manner.The cell's apoptosis rates were (11.19 ±0.47)％,(23.01 ±0.53)％,(28.10 ± 0.52) ％ at 24 h,and the corresponding values were ( 11.19 ± 0.47 ) ％,( 23.01 ± 0.53 ) ％,( 28.10 ± 0.52)％ at 48 h,which were significantly higher than those in control group [ (0.09 ±0.12)％,P ＜0.05].Conclusions MMI-166 can inhibit proliferation and induce apoptosis of human pancreatic SW1990 cell in a time- and concentration-dependent manner.