国际肿瘤学杂志 ›› 2015, Vol. 42 ›› Issue (8): 585-588.doi: 10.3760/cma.j.issn.1673422X.2015.08.007

• 论著 • 上一篇    下一篇

核糖体蛋白S7对宫颈癌HeLa细胞凋亡的影响

丁慧,凌静娴,陈军浩,张葵,王庆飞   

  1. 210008 南京大学医学院附属鼓楼医院肿瘤中心(丁慧),妇科(凌静娴),医学检验科(陈军浩、张葵、王庆飞)
  • 出版日期:2015-08-08 发布日期:2015-06-29
  • 通讯作者: 王庆飞, Email:wangqingfei1020@foxmail.com E-mail:wangqingfei1020@foxmail.com
  • 基金资助:

    国家自然科学基金(81302241);南京市医学科技发展项目(YKK13066)

Ribosomal protein S7 affects apoptosis of HeLa cervical cancer cells

DING  Hui, LING  Jing-Xian, CHEN  Jun-Hao, ZHANG  Kui, WANG  Qing-Fei   

  1. Department of Oncology, Nanjing Drum Tower Hospital, School of Medicine, Nanjing University, Nanjing 210008, China
  • Online:2015-08-08 Published:2015-06-29
  • Contact: Wang Qingfei E-mail:wangqingfei1020@foxmail.com

摘要: 目的初步探讨核糖体蛋白S7(RPS7)对宫颈癌HeLa细胞凋亡的影响。方法用构建的带增强绿色荧光蛋白(EGFP)报告基因的RPS7重组表达质粒pIRES2EGFPRPS7转染HeLa细胞作为实验组,以转染空载体pIRES2EGFP的细胞作为对照组,流式细胞仪检测带绿色荧光细胞的含量,Western blotting检测细胞中RPS7蛋白表达;用带有荧光染料藻蓝蛋白(APC)的磷脂结合蛋白V(AnnexinV)试剂对瞬时过表达和稳定干扰RPS7的细胞进行染色,流式细胞仪分析细胞凋亡水平。结果在获得的瞬时过表达RPS7的HeLa细胞中,细胞凋亡水平明显高于转染空载体的细胞[(10.00±0.60) %∶(5.73±0.61)%],差异有统计学意义(t=8.63, P=0.001)。另一方面,抑制RPS7表达的ShRPS7细胞凋亡水平低于对照细胞[(3.08±0.49)%∶(5.97±0.63)%],差异有统计学意义(t=6.40, P=0.003)。结论上调RPS7表达具有促进HeLa细胞凋亡的作用,而下调RPS7表达可抑制HeLa细胞的凋亡。

关键词: 宫颈肿瘤, 细胞凋亡, 核糖体蛋白S7

Abstract: ObjectiveTo preliminarily investigate the effect of ribosomal protein S7 on apoptosis of HeLa cervical cancer cells. MethodsThe previously constructed recombinant plasmid pIRES2EGFPRPS7 was transfected into HeLa cells, the empty vector pIRES2EGFP transfected cells as control. Enhanced green fluorescent protein(EGFP) expressing cells were quantified by flow cytometry, and RPS7 protein level was also determined by Western blotting. Cell apoptosis of both RPS7 overexpression cells and knockdown cells were evaluated by flow cytometry after staining using allophycocyanin labeled AnnexinV. ResultsApoptotic cell level in the obtained RPS7 transient overexpression HeLa cells was significantly higher than that of vector control cells [(10.00±0.60)% vs (5.73±0.61)%], with a statistic difference (t=8.63, P = 0.001). Moreover, the apoptotic level in RPS7 knockdown cells was lower than that in control cells [(3.08±0.49)% vs (5.97±0.63)%], with a statistic difference (t=6.40, P=0.003). ConclusionUpregulation of RPS7 may promote apoptosis, while downregulation of RPS7 may inhibit apoptosis of HeLa cells, indicating that RPS7 may play roles in regulating cell apoptosis.

Key words: Uterine cervical neoplasms, Apoptosis, Ribosomal protein S7