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ERK1/2在食管鳞状细胞癌中促进细胞增殖、抑制凋亡及其调控机制的研究

DOI: 10.13560/j.cnki.biotech.bull.1985.2015.10.035, PP. 242-248

Keywords: 食管鳞状细胞癌(ESCC),ERK1/2MAPK,Eca109细胞增殖,细胞凋亡,miR-21 

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Abstract:

探讨ERK1/2在食管鳞状细胞癌(ESCC)中对肿瘤细胞增殖、凋亡的调控及其机制。平板克隆、细胞凋亡和细胞周期实验结果发现ERK1/2MAPK通路抑制可减弱Eca109细胞克隆形成和增殖,促进细胞凋亡,减慢细胞周期;进一步发现ERK1/2MAPK通路抑制可以反转由miR-21过表达诱导的Eca109细胞增殖、凋亡和周期的变化;qRT-PCR和Western-blot免疫印迹结果发现ERK1/2MAPK信号通路抑制可以下调内源性miR-21表达和反转外源性miR-21诱导的ERK1/2MAPK信号通路活化。实验结果提示ERK1/2MAPK通路抑制可能通过下调Eca109细胞中miR-21表达阻碍Eca109细胞增殖、促进细胞凋亡和减慢细胞周期,最终导致ESCC细胞生长抑制。

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