基础医学与临床 ›› 2017, Vol. 37 ›› Issue (11): 1524-1528.

• 研究论文 • 上一篇    下一篇

RSUME促进小鼠垂体腺瘤细胞AtT-20凋亡

李敏,何伟,沈晓黎,黄玲,张焱,涂伟,祝新根   

  1. 南昌大学第二附属医院
  • 收稿日期:2016-09-18 修回日期:2016-12-26 出版日期:2017-11-05 发布日期:2017-11-01
  • 通讯作者: 沈晓黎 E-mail:shenxldoc@126.com
  • 基金资助:
    国家自然科学基金面上项目;江西省科技厅社会发展基金;江西省科技厅自然科学基金;江西省教育厅科学基金

RSUME promotes apoptosis of pituitary adenoma cell AtT-20 in mice

  • Received:2016-09-18 Revised:2016-12-26 Online:2017-11-05 Published:2017-11-01

摘要: 目的 探讨小泛素化修饰增强子(RWD containing sumoylation enhancer,RSUME)、核转录因子-κB抑制因子-α(IκB-α)及核转录因子-κB 1(NF -κB1)在小鼠垂体腺瘤中表达及其细胞凋亡的影响。方法 用RSUME 小干扰RNA转染AtT-20细胞后,用蛋白印迹及实时荧光定量PCR检测RSUME、NF -κB1及IκB-α蛋白的表达及mRNA的表达,流式细胞术检测细胞凋亡。结果 在蛋白水平,转染后RSUME及IκB-α表达下调(P<0.05),NF -κB1则上调(P<0.05);在mRNA水平,转染后RSUME mRNA表达水平明显低于转染前(P<0.05),而IκB-α及NF -κB1 mRNA水平无明显变化;转染后细胞凋亡率明显升高。结论 RSUME可以通过NF-κB1促进小鼠AtT-20垂体腺瘤细胞的凋亡。

关键词: 关键词:垂体腺瘤, 细胞凋亡, RSUME, 核转录因子, AtT-20

Abstract: Objective Explore the expression and influence of RWD structure small ubiquitin modified enhancer (RSUME) and inhibitor of nuclear factor kappa B-alpha (IκB-α) and nuclear factor kappa B-1 (NF-κB1) in pituitary adenomas of mice. Methods Through RSUME small interfering RNA transfection pituitary adenomas, the AtT-20 cells in mice, the line of real-time fluorescent quantitative PCR (q-pcr) detect the level RSUME, IκB-α, NF-κB1 mRNA and WB (protein imprinting method) detect RSUME and the nucleoprotein of IκB-α, NF-κB1 changes in the level of protein, flow cytometry to detect cell apoptosis. Results In protein level, RSUME and IκB-α expression reduced(P<0.05), but NF-κB1 raised after transfection(P<0.05); The level of RSUME mRNA is obviously lower after transfection than before(P<0.05), with The level of IκB-α and NF-κB1 mRNA were no obvious change; Flow cytometry confirmed cell apoptosis rate increased significantly after transfection. Conclusions RSUME can promote apoptosis of pituitary adenoma cells in mice by NF-κB.

Key words: Key words:pituitary adenoma, cell apoptosis, RSUME, NF-κB, AtT-20

中图分类号: