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• 基础医学 • 上一篇    下一篇

Apoptin对宫颈癌Hela细胞的抑制效应

朱继红1,2,崔满华3,李 霄2,孙丽丽4,张 钰2,陈 漉2,刘立明2,张振民2,金宁一2   

  1. 1. 吉林大学第一医院妇产科,吉林 长春 130021;2.军事医学科学院 解放军基因工程实验室,吉林 长春 130062;〖JP〗3.吉林大学第二医院妇产科,吉林 长春 130041;4.吉林省肿瘤医院头颈外科,吉林 长春 130012
  • 收稿日期:2007-11-13 修回日期:1900-01-01 出版日期:2008-03-28 发布日期:2008-03-28
  • 通讯作者: 金宁一

Anti-tumor effects of Apoptin gene on uterine cervix cancer cells

ZHU Ji-hong1,2,CUI Man-hua3,LI Xiao2,SUN Li-li4,ZHANG Yu2,CHEN Lu2,LIU Li-ming2,ZHANG Zhen-min2,JIN Ning-yi2   

  1. 1.Department of Gynecology and Obstetrics , First Hospital , Jilin University, Changchun 130021, China;2.Genetic Engineering Laboratory of PLA, Academy of Military Medical Sciences, Changchun 130062,China;3.Department of Gynecology and Obstetrics, Second Hospital , Jilin University, Changchun 130041, China;4.Department of Head and Neck Surgery, Tumor Hospital of Jilin Province, Changchun 130012, China
  • Received:2007-11-13 Revised:1900-01-01 Online:2008-03-28 Published:2008-03-28
  • Contact: JIN Ning-yi

摘要: 目的:探讨Apoptin基因对人宫颈癌Hela细胞的抑制作用和作用方式。方法:应用脂质体转染法将重组质粒pVAX1-Apoptin和载体质粒pVAX1分别体外转染Hela细胞,作为重组质粒pVAX1-Apoptin组和载体质粒pVAX1组,同时设空白细胞对照组。应用Western blotting检测Apoptin基因在Hela细胞中的表达;运用噻唑兰(MTT)分析法检测重组质粒对Hela肿瘤细胞的抑制作用;罗丹明123 和DCFA 染色测定线粒体跨膜电位(ΔΨm) 和活性氧水平变化;底物染色反应检测caspase-3活性。结果:pVAX1-Apoptin组转染48 h后,Hela细胞的抑制率为69.28%,明显高于对照组(0.74%)和pVAX1组(10.11%)(P<0.01)。与对照组比较,pVAX1-Apoptin组线粒体ΔΨm下降(P<0.01),细胞内活性氧水平升高(P<0.05), caspase-3活性增强(P<0.01)。结论:Apoptin可通过诱导Hela细胞凋亡,进而特异性杀伤Hela肿瘤细胞。

关键词: Apoptin基因, 细胞凋亡, 抑瘤作用

Abstract: Objective To investigate the anti-tumor effects and mode action of Apoptin on human uterine cervix cancer cells. Methods Recombinant plasmid pVAX1-Apoptin and pVAX1 were transfected into Hela cells by application of liposome in vitro and used as pVAX1-Apoptin group and pVAX1 group, meanwhile control group(without cells) was set up. The expression of Apoptin in Hela cells was detected by Western blotting. Anti-tumor effect on Hela cells was measured through methyl thiazolyl tetrazolium (MTT) assay. The alteration of mitochondrial transmembrane potential and ROS level of the cells were detected by flow cytometry ( FCM) with rhodamine 123 and DCFA staining. The activation of caspase-3 was assayed by its substrate color reaction. Results The  inhibitory rate in pVAX1-Apoptin group 48 h after transfection (69.28%) was higher than those in control group (0.74%) and pVAX1 group(10.11%) .Compared with control group ,the mitochondrial transmembrane potential was decreased (P<0.01), ROS level of the cells was increased (P<0.05), and caspase-3 activity was increased(P<0.01) in pVAX1-Apoptin group.Conclusion Anti-tumor effects of Apoptin on Hela cells may be resulted from the apoptosis-inducing function of Apoptin.

Key words: Apoptin gene, apoptosis, anti-tumor

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  • Q255