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白藜芦醇靶向EGFR和c-Met信号通路抑制非小细胞肺癌细胞增殖的机制

李伟, 刘文斌, 刘海丹

李伟, 刘文斌, 刘海丹. 白藜芦醇靶向EGFR和c-Met信号通路抑制非小细胞肺癌细胞增殖的机制[J]. 肿瘤防治研究, 2017, 44(1): 11-16. DOI: 10.3971/j.issn.1000-8578.2017.01.003
引用本文: 李伟, 刘文斌, 刘海丹. 白藜芦醇靶向EGFR和c-Met信号通路抑制非小细胞肺癌细胞增殖的机制[J]. 肿瘤防治研究, 2017, 44(1): 11-16. DOI: 10.3971/j.issn.1000-8578.2017.01.003
LI Wei, LIU Wenbin, LIU Haidan. Resveratrol Inhibits Non-small Cell Lung Cancer via Directly Targeting EGFR and c-Met Signaling Pathways[J]. Cancer Research on Prevention and Treatment, 2017, 44(1): 11-16. DOI: 10.3971/j.issn.1000-8578.2017.01.003
Citation: LI Wei, LIU Wenbin, LIU Haidan. Resveratrol Inhibits Non-small Cell Lung Cancer via Directly Targeting EGFR and c-Met Signaling Pathways[J]. Cancer Research on Prevention and Treatment, 2017, 44(1): 11-16. DOI: 10.3971/j.issn.1000-8578.2017.01.003

白藜芦醇靶向EGFR和c-Met信号通路抑制非小细胞肺癌细胞增殖的机制

基金项目: 

国家自然科学基金 81401548

详细信息
    作者简介:

    李伟(1984-),男,博士,助理研究员,主要从事肿瘤的化学预防研究

    通讯作者:

    刘海丹, E-mail: Haidanliubio@126.com

  • 中图分类号: R734.2

Resveratrol Inhibits Non-small Cell Lung Cancer via Directly Targeting EGFR and c-Met Signaling Pathways

More Information
  • 摘要:
    目的 

    探讨白藜芦醇抑制非小细胞肺癌细胞增殖的分子机制。

    方法 

    非小细胞肺癌细胞用白藜芦醇处理24、48和72 h,MTS和软琼脂集落形成实验检测白藜芦醇对非小细胞肺癌的抑制作用,免疫印迹检测白藜芦醇对表皮生长因子受体(epidermal growth factor receptor, EGFR)和肝细胞生长因子受体(c-Met)表达水平及下游信号通路的影响,流式细胞术检测白藜芦醇对细胞周期的影响。

    结果 

    白藜芦醇剂量依赖性抑制非小细胞肺癌细胞的增殖。白藜芦醇抑制EGFR和c-Met信号通路磷酸化活化的同时下调了EGFR总蛋白及EGFR在胞膜和胞核的表达,同时降低了c-Met蛋白在胞膜的表达及c-Met蛋白60 kD大小剪切体在胞核的表达。白藜芦醇促进了A549细胞G0/G1期阻滞。

    结论 

    白藜芦醇通过靶向EGFR和c-Met信号通路抑制非小细胞肺癌细胞的增殖。

     

    Abstract:
    Objective 

    To investigate the mechanism of resveratrol-mediated inhibition effect on human non-small cell lung cancer.

    Methods 

    Non-small cell lung cancer cells were treated with various concentrations of resveratrol for 24, 48 and 72 h, the proliferation was evaluated by MTS and soft agar assay. Meanwhile, the activation of EGFR and c-Met signaling pathways after resveratrol treatment was tested via immunoblotting. The subcellular localization of EGFR and c-Met were assessed by Western blot. Flow cytometry was conducted to detect cell cycle progression.

    Results 

    Resveratrol inhibited the proliferation of non-small cell lung cancer cells in a dose-dependent manner. Moreover, resveratrol treatment not only suppressed the phosphorylation of EGFR and c-Met signaling pathways, but also resulted in the down-regulation of total EGFR protein expression level, as well as its localization on membrane and in nucleus. Additionally, resveratrol treatment decreased c-Met expression on membrane and inhibited the 60 kD cleaved variant of c-Met translocated into nucleus. Flow cytometry data demonstrated that resveratrol induced cell cycle G0/G1 arrest.

    Conclusion 

    Resveratrol inhibits human non-small cell lung cancer via directly targeting EGFR and c-Met signaling pathways.

     

  • 图  1   白藜芦醇抑制A549和HCC827细胞的停泊依赖性增殖

    Figure  1   Resveratrol inhibited anchorage-dependent growth of A549 and HCC827 cells

    图  2   白藜芦醇抑制A549和HCC827细胞停泊非依赖生长

    Figure  2   Resveratrol inhibited anchorage-independent growth of A549 and HCC827 cells

    图  3   白藜芦醇抑制A549细胞c-Met和EGFR信号通路的活化

    Figure  3   Resveratrol suppressed activation of c-Met and EGFR signaling pathways in A549 cells

    图  4   白藜芦醇下调A549细胞内EGFR和c-Met的蛋白表达

    Figure  4   Resveratrol down-regulated expression of EGFR and c-Met in A549 cells

    图  5   白藜芦醇促进EGFR和c-Met蛋白泛素化降解

    Figure  5   Resveratrol promotes ubiquitination-mediated degradation of EGFR and c-Met

    图  6   白藜芦醇诱导细胞周期G0/G1期阻滞

    Figure  6   Resveratrol induced cell cycle G0/G1 arrest

    图  7   白藜芦醇抑制A549肺癌细胞裸鼠移植瘤生长

    Figure  7   Resveratrol inhibited xenogratfed tumor growth of A549 cells in nude mice

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出版历程
  • 收稿日期:  2016-01-25
  • 修回日期:  2016-07-05
  • 网络出版日期:  2024-01-12
  • 刊出日期:  2017-01-24

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