国际肿瘤学杂志 ›› 2012, Vol. 39 ›› Issue (1): 68-72.

• 论著 • 上一篇    下一篇

下调miR-93表达抑制人脑胶质瘤细胞生长和侵袭的研究

张安玲, 王坤, 王广秀, 等   

  1. 300052 天津医科大学总医院神经外科,天津市神经病学研究神经肿瘤实验室
  • 出版日期:2012-01-08 发布日期:2013-11-11
  • 通讯作者: 浦佩玉,E-mail: pupeiyu33@hotmail.com E-mail:pupeiyu33@hotmail.com
  • 基金资助:

    国家自然科学基金资助项目30872985;天津市科技计划项目07ZCGHHZ01000

A study of downregulation of miR-93 on the suppression of human glioma cell growth and invasion

ZHANG  An-Ling, WANG  Kun, WANG  Guang-Xiu, et al   

  1. Department of Neuro-surgery, Tianjin Medical University General HospitalLaboratory of Neuro-oncology, Tianjin Neurological Institute; Tianjin 300052, China

  • Online:2012-01-08 Published:2013-11-11

摘要: 目的 验证下调miR-93表达对人脑胶质瘤细胞株的生长抑制作用。方法 合成miR-93抑制物,应用脂质体转染人脑胶质瘤细胞以抑制其表达,实时定量PCR检测转染后miR-93表达情况,流式细胞术检测、四甲基偶氮噻唑法(MTT)试验和软琼脂克隆形成实验评价细胞生长变化,transwell实验检测细胞侵袭能力的变化。结果 转染miR-93抑制物后,细胞中miR-93高表达被明显抑制,细胞周期进展迟滞,S期细胞减少,生长速度减慢,克隆形成能力减弱,穿过matrigel胶的细胞数减少,侵袭能力被抑制。 结论 下调miR-93表达可抑制胶质瘤细胞的生长和侵袭。

关键词: 脑肿瘤, 神经胶质瘤, 寡核苷酸类, 反义

Abstract: Objective  To confirm the effect of miR-93 inhibitor in glioma cell growth.  Methods  Malignant glioma cells were transfected with miR-93 inhibitor by lipofectamin to downregulate their overexpression of miR-93. Real time-PCR was taken to measure miR-93 expression after transfection. The cell cycle kinetics and cell growth rate were detected by flowcytometry and MTT assay, the cell proliferative ability was evaluated by soft agar assay, and the invasive ability was detected by transwell assay.  Results  The high-level expression of miR-93 was downregulated effectively in glioma cells after transfecting the miR-93 inhibitor. Meanwhile, the cell cycle progress was delayed, S phase cells were reduced, the speed of growth was slowed, cloning formation ability was receded, the number of cells through the matrigel was reduced, and invasive ability was significantly repressed. Conclusion  Downregulation of miR-93 expression could inhibit the proliferative ability and invasive ability of glioma cells.