基础医学与临床 ›› 2010, Vol. 30 ›› Issue (1): 37-41.

• 研究论文 • 上一篇    下一篇

转染NDRG2基因抑制乳腺癌细胞增殖

朱财林 李南林 王廷   

  1. 第四军医大学西京医院血管内分泌外科
  • 收稿日期:2009-04-20 修回日期:2009-06-02 出版日期:2010-01-05 发布日期:2010-01-05

NDRG2 gene transfection inhibition proliferation of breast cancer cell

Cai-lin ZHU, Nan-lin LI, Ting WANG   

  1. Department of Vascular and Endocrine Surgery , Xijing Hospital ,the Fourth Military Medical University
  • Received:2009-04-20 Revised:2009-06-02 Online:2010-01-05 Published:2010-01-05

摘要: 目的:观察NDRG2对于乳腺癌细胞系增殖的影响。方法: 用重组NDRG2腺病毒转染低表达NDRG2的人乳腺癌细胞系Bcap37,用Western blot检测NDRG2的表达;用MTT、流式细胞仪检测细胞增殖能力。结果: NDRG2表达对Bcap37细胞生长具有抑制作用; Bcap37 细胞病毒转染组出现G1期阻滞(G1期捕获),与未转染的Bcap37 细胞(1.0%)和空载体重组腺病毒感染的Bcap37 细胞(2.0%)相比,重组NDRG2腺病毒感染的Bcap37 细胞中凋亡细胞明显增多,感染48 h后达12.0%,感染72 h后达21.5%。结论:在乳腺癌细胞系Bcap37 中,过表达NDRG2可有效抑制细胞增殖并导致细胞周期的阻滞和诱导细胞凋亡。

关键词: NDRG2, 肿瘤, 基因转染, 腺病毒

Abstract: Objective:To explore the effect of gene NDRG2(N-myc downstream regulated gene 2) transfection on the proliferation and apoptosis in breast cancer cell. Methods : Bcap37 cell line express low level NDRG2 gene is transfected with recombinating adenovirus expressing high level NDRG2 gene to improve NDRG2 gene expression level. The NDRG2 expression level was detected by Western blot and the proliferation activity of the cell lines was detected by MTT and flow cytometry. Results : High expression level of NDRG2 inhibits cells growth and results in G1 phase arrest in Bcap37 cell line. Compared with non-transfected Bcap37 cells and Bcap37 cells transfected by empty vector, apoptosis cells obviously increase in Bcap37 cell line transfected by recombinating adenovirus expressing high level NDRG2 gene, 12% after 48 hours and 21.5% after 72 hours. Conclusions: Overexpression of NDRG2 in Bcap37 cells effectively inhibited cell proliferation and induced cell cycle arrest and apoptosis.

Key words: NDRG2, tumor, gene transfection, adenovirus