基础医学与临床 ›› 2015, Vol. 35 ›› Issue (12): 1633-1639.

• 研究论文 • 上一篇    下一篇

miR-95对结肠癌细胞系SW620侵袭和迁移的影响及机制

王超超1,向征1,杜昆利2,王朝义1,汤为学3   

  1. 1. 重庆医科大学附属第一医院
    2. 重庆医科大学 附属第一医院
    3. 重庆医科大学附属第一医院实验研究中心
  • 收稿日期:2015-04-13 修回日期:2015-07-02 出版日期:2015-12-05 发布日期:2015-12-04
  • 通讯作者: 向征 E-mail:xzly@medmail.com.cn
  • 基金资助:
    重庆市渝中区科技项目

The effect of miR-95 on invasion and migration of colon cancer cell line SW620 and its mechanism

  • Received:2015-04-13 Revised:2015-07-02 Online:2015-12-05 Published:2015-12-04

摘要: 目的:探讨小分子非编码 RNA-95( miR-95) 表达对结肠癌细胞系SW620侵袭、迁移能力的影响及其机制。方法:将miR-95干扰慢病毒转入结肠癌细胞系SW620,用qRT-PCR检测细胞中miR-95表达,用Transwell 小室和划痕实验检测细胞侵袭和迁移能力;MTT法检测细胞同种、异种细胞黏附能力;用 Western 印迹检测3组细胞的EMP1,VEGFC和MMP2蛋白表达。结果: SW620转染miR-95干扰慢病毒72h后,转染率较高;与空病毒组和对照组比较,转染组miR-95的表达降低(P<0.05);侵袭和迁移能力减弱(P <0.05);同种黏附能力增强 (P<0.05);异种黏附能力减弱 (P<0.05);同时转染组EMP1蛋白表达明显增高,VEGFC、MMP2蛋白表达明显降低(P <0.05)。结论: miR-95能够促进SW620细胞侵袭和迁移能力,可能是通过EMP1、VEGFC和MMP2实现的。

关键词: 关键词: mir-95, 结肠癌, 侵袭, 迁移, EMP1

Abstract: Objective: To explore the effect of small molecule noncoding RNA(miRNA-95) on the invasion and migration ability of colon cancer SW620 cell line and its mechanism.Methods: The SW620 cells were infected by miR-95 interference lentivirus.The expression of miR-95 mRNA was confirmed by quantitative real-time polymerase chain reaction.Transwell chambers, scrath test were conducted to detect the ability of cell invasion,migration among each group;and MTT method was used to detect the intercellular adhesion of homogeneous and heterogeneous cells;Western blot was used to detect the expression of EMP1,VEGFC and MMP2 proteins.Results: After the infection of SW620 with miR-95 interference lentivirus for 72h,significangt fluorescence expression was observed.Compared with empty virus group and ccontrol group,the expression of miR-95 was decreased in transfection group (P<0.05);The invasion and migration ability weakened (P<0.05);the intercellular adhesion ability of homogeneous cells increased (P<0.05);the intercellular adhesion ability of heterogenous cells decreased (P<0.05).The expression of EMP1 protein in transfection group was obviously higher,VEGFC ,MMP2 protein significangtly lower (P<0.05).Conclusion: miR-95 may promote the invasion and migration ability of SW620 cells,its may be achieved by EMP1,VEGFC,MMP2.

Key words: Key words : mir-95 , colon cancer, invasive, migration, EMP1

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