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索拉非尼对食管癌EC9706细胞的生长抑制作用[J]. 肿瘤防治研究, 2015, 42(04): 324-327. DOI: 10.3971/j.issn.1000-8578.2015.04.002
引用本文: 索拉非尼对食管癌EC9706细胞的生长抑制作用[J]. 肿瘤防治研究, 2015, 42(04): 324-327. DOI: 10.3971/j.issn.1000-8578.2015.04.002
Inhibitory Effect of Sorafenib on Growth of Human Esophageal Cancer Cells EC9706[J]. Cancer Research on Prevention and Treatment, 2015, 42(04): 324-327. DOI: 10.3971/j.issn.1000-8578.2015.04.002
Citation: Inhibitory Effect of Sorafenib on Growth of Human Esophageal Cancer Cells EC9706[J]. Cancer Research on Prevention and Treatment, 2015, 42(04): 324-327. DOI: 10.3971/j.issn.1000-8578.2015.04.002

索拉非尼对食管癌EC9706细胞的生长抑制作用

Inhibitory Effect of Sorafenib on Growth of Human Esophageal Cancer Cells EC9706

  • 摘要: 目的 探讨索拉非尼(sorafenib)体外对EC9706细胞生长抑制作用及其机制。方法 qRTPCR检测sorafenib作用后MMP-2、MMP-9、TIMP1、AKT和Bcl-2 mRNA的表达;Western blot检测sorafenib作用后AKT、p-AKT、Bcl-2、MMP-2和TIMP1蛋白表达水平的变化;Hoechst/PI 染色荧光显微镜观察sorafenib诱导的细胞凋亡/坏死;细胞划痕实验观察sorafenib对EC9706细胞的迁移抑制作用。结果 与对照组相比,qRT-PCR显示sorafenib下调MMP-2、MMP-9、AKT、Bcl-2 mRNA表达,上调TIMP1 mRNA 表达(P<0.05);Western blot显示sorafenib降低MMP-2、AKT、p-AKT、Bcl-2蛋白的表达水平,上调TIMP1蛋白表达水平(P<0.05);荧光显微镜观察发现sorafenib诱导红染细胞增加(P<0.05);细胞划痕实验发现sorafenib作用后划痕明显变宽,并且具有浓度依赖性(P<0.05)。结论 索拉非尼能够上调TIMP1表达水平、下调MMP-2、MMP-9、AKT、Bcl-2表达水平,可以抑制食管鳞癌EC9706细胞的迁移、促进凋亡坏死,这些可能是其产生抗肿瘤作用的机制之一。

     

    Abstract: Objective To investigate the inhibitory effect of sorafenib on the growth of esophageal cancer cells EC9706 in vitro and its mechanism. Methods Effect of sorafenib on the expression of MMP-2, MMP-9, TIMP1, AKT and Bcl-2 were detected by qRT-PCR. Effect of sorafenib on the expression of AKT, p-AKT, Bcl-2, MMP-2 and TIMP1 were detected by Western blot. Cell apoptosis/necrosis induced by sorafenib were observed by Hoechst/PI staining. The inhibitory effect of sorafenib on EC9706 cells migration was observed by cell scratch test. Results qRT-PCR data showed downregulation of MMP-2, MMP-9, AKT, Bcl-2 and upregulation of TIMP1 mRNA, compared with the control group(P<0.05); furthermore, Western blot analysis revealed the expression of MMP-2, AKT, p-AKT, Bcl-2 proteins were downregulated and TIMP1 protein expression was upregulated in the sorafenib groups compared with the control group(P<0.05).Sorafenib was found not only to inhibit the migration of EC9706 cells in vitro by cell scratch test, but also to promote cells apoptosis in vitro by Hoechst/PI apoptosis/necrosis detection(P<0.05). Conclusion Sorafenib could upregulate the expression of TIMP1, downregulate the expression of MMP-9, AKT, MMP-2 and Bcl-2,and inhibit the migration and promote apoptosis/necrosis of esophageal cancer cells EC9706. These may be its anticancer mechanism.

     

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