J4 ›› 2011, Vol. 37 ›› Issue (3): 445-447.

• 基础研究 • 上一篇    下一篇

AZT对SGC 7901胃癌细胞凋亡及Bax蛋白和PCNA表达的影响

刘国辉| 杜晓宏2| 于金海2   

  1. 1.吉林大学第一医院急诊科|吉林 长春130021;2.吉林大学第一医院普外科|吉林 长春130021
  • 收稿日期:2011-01-24 出版日期:2011-05-28 发布日期:2011-05-28
  • 通讯作者: 于金海(Tel:0431-88782737,E-mail:yihai740917@yahoo.com.cn) E-mail:yihai740917@yahoo.com.cn
  • 作者简介:刘国辉(1965-)|男|黑龙江省讷河县人|副主任医师|医学博士|主要从事急诊及普外科系统疾病的研究。
  • 基金资助:

    吉林省科技厅科技发展计划项目资助课题(20080445-2)

Influence of AZT on apoptosis of gastric cancer cell line SCG 7901 and expressions of Bax |protein and PCNA

LIU Guo-hui1|   |DU Xiao-hong2| |YU Jin-hai2   

  1. 1.Department of Emergency,First Hospital,Jilin University,Changchun 130021,China;2.Department of General Surgery,FirstHospital,Jilin University,Changchun 130021,China
  • Received:2011-01-24 Online:2011-05-28 Published:2011-05-28

摘要:

目的:研究端粒酶抑制剂3′-叠氮3′-脱氧胸腺核苷(AZT)对SGC 7901胃癌细胞凋亡及Bax蛋白和增殖细胞核抗原(PCNA)表达的影响,探讨其诱导肿瘤细胞凋亡的可能机制。方法:将处于对数生长期的SGC 7901胃癌细胞分为对照组及1.0 mmol/L-1 AZT处理组,应用AZT 6 d后,采用MG-P-MY组合染色法检测SGC 7901胃癌细胞凋亡率,采用免疫组织化学EnVision法检测SGC 7901胃癌细胞Bax蛋白及PCNA的表达。结果:AZT组及对照组SGC 7901胃癌细胞凋亡率分别为(16.421±0.713)%和(3.366±0.271)%,AZT处理组SGC 7901胃癌细胞凋亡率明显高于对照组(P<0.05);对照组Bax蛋白及PCNA阳性细胞表达率分别为(16.851±10.064)%和(63.332±22.767)%,AZT处理组Bax蛋白及PCNA阳性细胞表达率为(47.389±18.042)%和(23.446±13.055)%,与对照组比较,AZT处理组Bax蛋白表达率明显增加(P<0.05),PCNA表达率明显降低(P<0.05)。结论: AZT能促进SGC 7901胃癌细胞Bax蛋白的表达,抑制PCNA表达,增加SGC 7901胃癌细胞凋亡。

关键词: Bax蛋白; , 增殖细胞核抗原, 3′-叠氮3′-脱氧胸腺苷 ; SGC7901胃癌细胞 ;细胞凋亡;  

Abstract:

Abstract:Objective To study the influence of 3′-azido-3′-deoxythymidine (AZT) on the apoptosis of  gastric
cancer cell line SCG 7901 and the expressions of BAX protein and proliferation cell nuclear antigen (PCNA)  and explore themechanisms.Methods The gastric cancer cell line SCG 7901 treated with 1.0 mmol?L-1 AZT for 6 d were used as AZT group,at the same time,control group was set up.The apoptotic rates  of SGC 7901 in two groups weredetected with MG-P-Mstaining. The expressions of Bax protein and PCNA  of  gastric cancer cell line SCG 7901 6 d after drug administrationwere determined by  immunohistochemical technique(EnVision). Results The apoptotic rates in AZT proup and control group were(16.421±0.713)% and (3.366±0.271)% respectively, the  apoptotic rate  in AZT group was  significantly higher thanthat in  control group(P<0.05). Compared with control group,the expression of Bax protein was significantly increased (16.851%±10.064% vs 47.389%±18.042%,P<0.05)  and the expression of PCNA  was significantly decreased(23.446%±13.055% vs62.332±22.767%,P<0.05) in AZT group. Conclusion AZT can induce  the apoptosis of gastric cancer cell line SCG7901,promote the expression of Bax protein and inhibit the expression of PCNA.

Key words: apoptosis, Bax, proliferation cell nuclear antigen, 3′-azido-3′-deoxythymidin;gastric cancer cell line SCG7901

中图分类号: 

  • R73-3