c-met-siRNA在肝癌细胞株MHCC97-H侵袭和转移中的作用

Effects of c-met-siRN A on the growth and invasion of hepatocellular carcinoma MHCC97-H cells

目的探讨c-met-siRNA对肝细胞癌生长和侵袭的影响。方法采用脂质体法将pSuppressorRetro／c-met- siRNA导入包装细胞Phoenix A中获得含c-met-siRNA的逆转录病毒颗粒,进一步感染靶细胞MHCC97-H,Western blot检测c-Met的表达,通过生长曲线、运动试验及侵袭试验比较转染前后细胞的生长、运动及侵袭能力。结果肝细胞癌MHCC97-H细胞中c-Met的表达显著降低;细胞的生长、运动及侵袭均受到明显抑制。结论c-met-siRNA能抑制肝细胞癌细胞MHCC97-H的生长、运动及侵袭,这对肝细胞癌的生长、转移具有重要的临床意义。

Objective To explore the effects of c-met-siRNA on the growth and invasion of hepatocellular carcinoma MHCC97-H cells by pSuppressorRetro/c-met-siRNA recombinant plasmid transfection. Methods Recombinant plasmid transfection to Phoenix A cells was constructed using the lipofectin method and then the retrovirals containing c-met-siRNA were used to infect target cells MHCC97-H. In vitro, c-met expression was tested by Western blot. Cell proliferation, motility and invasiveness were studied using MTT, cell migration assay, and cell invasion assay, respectively. Results The expression of c-met decreased significantly in MHCC97-H cells, and the most effective site of the target sequence was at 537. The growth, motility and invasiveness of MHCC97-H cells were inhibited. Conclusion The results indicate that c-met-siRNA can down-regulate the expression of c-met and inhibit hepatocellular carcinoma cell proliferation, motility and invasiveness.