哌立福辛抑制胃癌细胞SGC7901增殖及其作用机制
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常州市卫生局重大项目(ZD200906)


Inhibition of perifosine on proliferation of gastric cancer cell line SGC7901 in vitro
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    摘要:

    目的:探讨哌立福辛对体外培养的人胃癌SGC7901细胞生长增殖的影响并探讨其机制。方法:分别用不同浓度的哌立福辛 (0.125-0.250-0.500-0.750-1.500 -滋mol/L) 对SGC7901细胞进行干预后,采用磺酰罗丹明B (SRB)法检测细胞增殖变化;平板克隆实验检测细胞克隆形成能力;Real-time PCR-Western blot法检测癌症相关基因eIF4E及AEG-1 mRNA及蛋白表达。结果:哌立福辛呈时间及浓度依赖性抑制胃癌SGC7901细胞的增殖,并降低细胞的克隆形成能力;细胞内AKT信号通路中AEG-1-eIF4E的表达明显降低。结论:哌立福辛具有抑制胃癌SGC7901细胞增殖的作用;通过降低AKT信号通路中AEG-1和eIF4E的mRNA及蛋白表达可能是发挥增殖抑制作用的机制之一。

    Abstract:

    Objective:To investigate the effects of perifosine on the growth of human gastric carcinoma cell line SGC7901. Methods:The inhibitory effect of perifosine on the growth of human gastric cancer cell line SGC7901 was observed at different concentrations(0.125,0.250,0.500,0.750,1.500) -滋mol/L by sulforhodamine B(SRB)assay. Plate colony formation assay was performed to detect the colony formation rate. The expression levels of eIF4E and AEG-1 were determined by Real-time PCR and Western blot. Results:Perifosine inhibited the growth of gastric cancer cell line SGC7901 in dose- and time-dependent manners. The cell colony formation rate was statistically decreased (P < 0.05) as compared with those in the control. The mRNA and protein levels of eIF4E and AEG-1 were reduced gradually dose-dependently. Conclusion:Perifosine,an AKT inhibitor,inhibits the growth and the colony formation rate of human gastric cancer cell via downregulating the expression of eIF4E and AEG-1.

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谢海彬,李 忠.哌立福辛抑制胃癌细胞SGC7901增殖及其作用机制[J].南京医科大学学报(自然科学版),2013,(8):1077-1080

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  • 收稿日期:2012-12-19
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  • 在线发布日期: 2013-07-30
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