基础医学与临床 ›› 2015, Vol. 35 ›› Issue (5): 603-609.

• 研究论文 • 上一篇    下一篇

Ifi204基因表达对大鼠血管外膜成纤维细胞凋亡和迁移的影响

田茂波1,吴强1,宋方2,龙向淑3,黄晶4,肖燕3   

  1. 1. 贵阳医学院
    2. 贵州省心血管病研究所,贵州省人民医院
    3. 贵州省人民医院
    4. 贵州省人民医院心血管内科
  • 收稿日期:2014-11-24 修回日期:2015-03-13 出版日期:2015-05-05 发布日期:2015-04-28
  • 通讯作者: 吴强 E-mail:gzgywq@126.com
  • 基金资助:
    干扰素诱导蛋白鼠p204及人IFI16对血管重构的影响及机制

Effects of ifi204 gene expression on apoptosis and migration of rat vascular adventitial fibroblast

  • Received:2014-11-24 Revised:2015-03-13 Online:2015-05-05 Published:2015-04-28
  • Supported by:
    The effect and possible mechanism of the interferon-inducible protein murine p204 and human IFI16 on vascular remodeling

摘要: 目的 探讨Ifi204基因过表达与沉默对大鼠血管外膜成纤维细胞(VAF)凋亡和迁移的影响。方法 原代培养大鼠VAF,利用携带Ifi204基因的慢病毒颗粒或空载体慢病毒颗粒感染VAF,分别作为实验组(ifi204 lv组)和阴性对照组(Blank lv组)。用Ifi204基因小干扰RNA瞬时干预VAF使其沉默(ifi204siRNA组)、空白小干扰RNA作为阴性对照组(ControlsiRNA组),未经处理的VAF作为空白对照组(Negative组)。流式细胞仪检测细胞凋亡,细胞划痕法和Transwell法测定细胞迁移情况,用Real-Time PCR和Western blot分别检测mRNA和蛋白表达。结果 与Blank lv组、ControlsiRNA组、Ifi204siRNA组和Negative组相比,ifi204 lv组的P204、P53 mRNA和蛋白表达及细胞凋亡率明显上调(P<0.05),细胞迁移速度降低(P<0.05)。转染Ifi204siRNA可抑制P204、P53的mRNA和蛋白表达(P<0.05),提高细胞活力,抑制细胞凋亡(P<0.05),加快细胞迁移速度(P<0.05)。结论 Ifi204基因表达对大鼠VAF细胞凋亡和迁移的影响可能与激活p53表达有关。

关键词: Ifi204 基因, 血管外膜成纤维细胞, 凋亡, 迁移

Abstract: Objective To investigate effects of Ifi204 gene over-exprssion and silencing on apoptosis and migration of rat vascular adventitial fibroblast cell(VAF). Method Rat VAF were cultured and transfected Ifi204 gene by lentivirus particles(ifi204lv group) or empty vector lentivirus particles(blanklv group),respectively,as the over-exprssion group and blank group. Instantaneous intervention VAF by ifi204 small interfering(ifi204siRNA group) or blank small interfering RNA (Control SiRNA group) ,as ifi204siRNA group and control SiRNA group. VAF was untreated as a negative group .Cell apoptosis was detected by flow cytometry;cell migration by cell scratch and transwell;the mRNA and protein expression of p204/p53 were detected by Real-Time PCR and Western blot. Result Compared with those in the blank lv group ,controlsiRNA group ,ifi204siRNA group or Negative group, in ifi204lv group ,P204/P53 mRNA and protein expression and rate of apoptosis significantly increased (P<0.05), and cell migration speed reduced (P<0.05). Transfection of ifi204siRNA inhibit P204 /P53 mRNA and protein expression(P<0.05), improves cell viability(P<0.05), inhibits cell apoptosis(P<0.05), accelerates the speed of cell migration(P<0.05). Conclusion Effects of ifi204 gene expression on apoptosis and migration of rat vascular adventitial fibroblast may be related to activation of p53.

Key words: Ifi204 genne, vascular adventitial fibroblast, apoptosis, migration