基础医学与临床 ›› 2014, Vol. 34 ›› Issue (3): 345-349.

• 研究论文 • 上一篇    下一篇

ERK1/2 MAPK 通路在Eca109细胞体外增殖和迁移中的作用及其机制

刘凤霞1,牛淑亮2,李建勇2,郑树涛3,卢晓梅3,刘文亚3   

  1. 1. 新疆医科大学基础医学院人体解剖学教研室
    2. 新疆医科大学基础医学院
    3. 新疆医科大学第一附属医院
  • 收稿日期:2013-06-18 修回日期:2013-10-09 出版日期:2014-03-05 发布日期:2014-02-27
  • 通讯作者: 刘凤霞 E-mail:liufengxia555@126.com
  • 基金资助:
    新疆自治区科技厅面上项目

The role and mechanism of ERK1/2 MPAK pathway in proliferation and migration of Eca109 cell line in vitro

  • Received:2013-06-18 Revised:2013-10-09 Online:2014-03-05 Published:2014-02-27
  • Contact: Feng-Xia LIU E-mail:liufengxia555@126.com

摘要: 目的 观察ERK1/2 MAPK通路在食管鳞状细胞癌(ESCC)Eca109细胞系增殖和迁移中的作用并探讨其作用机制。方法 使用MAPK(ERK1/2)抑制剂U0126处理Eca109细胞;细胞计数检测细胞增殖;倒置显微镜下观察细胞形态;实时荧光定量PCR(qRT-PCR)检测ERK1/2 mRNA;Western blot检测总ERK1/2(t- ERK1/2)和磷酸化ERK1/2(p- ERK1/2);MTT和细胞划痕实验检测细胞增殖和迁移能力;qRT-PCR检测MicroRNA-21(miR-21)。结果 20μmol/L浓度的U0126可抑制Eca109细胞生长(p<0.05),破话细胞正常形态,ERK1/2 MAPK通路的活化在蛋白质水平被抑制(p<0.05),Eca109细胞增殖和迁移明显减弱(p<0.05),显著下调miR-21的表达(p<0.05)。结论 ERK1/2 MAPK信号通路抑制可减弱Eca109细胞增殖和迁移,其可能的作用机制之一与其抑制miR-21表达有关。

关键词: 关键词: ERK1/2, Eca109细胞, 增殖, 迁移, MicroRNA-21

Abstract: Objective To investigate the role and mechanism of ERK1/2 MPAK pathway in regulating proliferation and migration of Eca109 cell line in vitro. Methods We treated Eca109 cells with MAPK(ERK1/2)inhibitor(U0126); cell counting method detected the cell proliferation; Cell morphology was observed under inverted microscope;qRT-PCR detected ERK1/2 mRNA level; Western blot determined the expression of ERK1/2 protein level; MTT and Wound scratch assay detected cell proliferation and migration; qRT-PCR examined miR-21 expression. Results Cell growth was inhibited by U0126 at 20μmol/L doses(p<0.05), destroyed the normal cell morphology; inactivited ERK1/2 MPAK pathway at protein level(p<0.05); inhibition of ERK1/2 MPAK pathway repressed cell proliferation and migration of Eca109 cells and downregulated the expression of miR-21(p<0.05). Conclusion Inhibition of ERK1/2 MPAK pathway weakened cell proliferation and migration of Eca109 cells, one of the most possible mechanism is associated it’s inhibition role on miR-21 expression.

Key words: Key words: ERK1/2, Eca109 cell, proliferation, migration, MicroRNA-21