中国临床解剖学杂志 ›› 2019, Vol. 37 ›› Issue (3): 292-298.doi: 10.13418/j.issn.1001-165x.2019.03.011

• 实验研究 • 上一篇    下一篇

miR-143-3p 靶向MAPK1对人结肠癌细胞增殖,凋亡和侵袭的调节作用#br#

张志谦1, 张广星2, 彭小东2   

  1. 1.南昌市第三医院普外科,  南昌   330009;    2.南昌大学第一附属医院肿瘤内科,  南昌   330006
  • 收稿日期:2018-09-26 出版日期:2019-05-25 发布日期:2019-06-13
  • 通讯作者: 彭小东,主任医师,硕士生导师,E-mail: pxddhbb@163.com
  • 作者简介:张志谦(1971-),副主任医师,学士,主要从事普通外科临床工作及基础理论方面的研究,E-mail: 2240706571@qq.com
  • 基金资助:
    江西省科技厅支持项目(20152BBG70054)

The regulatory effects of miR-143-3p on proliferation, apoptosis and invasion on human colon cancer cell via targeting MAPK1

ZHANG Zhi-qian1, ZHANG Guang-xin2, PENG Xiao-dong2   

  1. 1. Department of General Surgery, The Third Hospital of Nanchang,Nanchang 330009, China; 2. Department of Medicine Oncology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China
  • Received:2018-09-26 Online:2019-05-25 Published:2019-06-13

摘要: 目的 研究miR-143-3p靶向MAPK1与人结肠癌细胞增殖、凋亡和侵袭的关系。  方法 qRT-PCR检测miR-143-3p mimic转染效果和MAPK1的mRNA表达水平;双荧光素酶报告实验分析miR-143-3p与MAPK1的靶向关系;蛋白质印迹检测MAPK1的蛋白表达水平,CCK-8检测细胞增殖倍数,Hoechst染色检测细胞增殖,体外侵袭实验检测细胞侵袭,蛋白质印迹检测Ki67、VEGF、MMP-2和cleaved caspase-3的表达。  结果 miR-143-3p mimic抑制人结肠癌细胞SW620中MAPK1 mRNA和蛋白的表达水平;miR-143-3p mimic与MAPK1野生型报告载体共转后,荧光素酶的活性显著降低;miR-143-3p mimic转染SW620细胞后,细胞增殖、侵袭能力显著降低,凋亡细胞数目显著增加,Ki67、VEGF和MMP-2的表达水平显著降低,cl-caspase-3的表达水平显著上升;miR-143-3p mimic能缓解MAPK1高表达对SW620细胞增殖、侵袭的诱导作用和对细胞凋亡的抑制作用。  结论 miR-143-3p抑制人结肠癌细胞增殖和侵袭,诱导细胞凋亡,其作用机制与靶向抑制MAPK1有关。

关键词: 结肠癌,  微小RNA,  MAPK1,  增殖,  凋亡,  侵袭

Abstract: Objective To investigate the relationship between miR-143-3p targeting MAPK1 and its effect on proliferation, apoptosis and invasion of human colon cancer cells. Methods qRT-PCR was used to detect the effect of transfection and the expression level of MAPK1 mRNA. Double luciferase reporter assay was used to detect the targeting relationship between microRNAs-143-3p and MAPK1. The expression level of MAPK1 protein was detected by Western blot. The proliferation multiple was detected by CCK-8. The proliferation was detected by Hoechst staining. The cell invasion was detected by in vitro invasion test. The expression of Ki67, VEGF,MMP-2 and claspase-3 was detected by Western blot. Results miR-143-3p mimic inhibited the expression of MAPK1 mRNA and protein in SW620 cells. miR-143-3p mimic and MAPK1 wild-type reporter plasmid decreased the activity of luciferase significantly. After miR-143-3p mimic transfection, the proliferation and invasion of SW620 cells were significantly decreased, the number of apoptotic cells was significantly increased, the expression of Ki67, VEGF and MMP-2 was significantly decreased, and the expression of cl-caspase-3 was significantly increased. The miR-143-3p mimic alleviated the induction effect of high expression of MAPK1 on proliferation and invasion of SW620 cells and inhibition effect on cell apoptosis. Conclusion miR-143-3p can inhibit proliferation and invasion of human colon cancer cells and induce apoptosis through possible targeting inhibition of MAPK1.

Key words: Colon cancer,  Micro RNA,  MAPK1,  Proliferation,  Apoptosis,  Invasion

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