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中国临床药理学与治疗学 ›› 2008, Vol. 13 ›› Issue (8): 856-859.

• 基础研究 • 上一篇    下一篇

丙氧鸟苷结合HSV-TK基因治疗乳腺癌的实验研究

蒋虹1, 侯成荣2, 陈靠山3, 王明宁2, 张昱2, 王文青2, 杨生玺2   

  1. 1青海大学附属医院, 西宁810001, 青海;
    2青海大学医学院基础部, 西宁810001, 青海;
    3皖南医学院药学系, 芜湖241001, 安徽
  • 收稿日期:2007-06-14 修回日期:2008-04-15 出版日期:2008-08-26 发布日期:2020-10-12
  • 通讯作者: 杨生玺, 男, 副教授, 研究方向:肿瘤遗传。E-mail:yangshenxi2007@yahoo.cn
  • 作者简介:蒋虹, 女, 副主任医师, 研究方向:医学遗传。Tel:13099756280 E-mail:yangjiang63@126.com
  • 基金资助:
    青海省重点科技攻关项目(2006-N-175)

Experimental study of gancyclovir combining HSV-TK gene therapy system on breast cancer

JIANG Hong1, HOU Chen-rong1, CHEN Kao-shan3, WANG Ming-ning2, ZHANG Yu2, WANG Wen-qing2, YANG Sheng-xi2   

  1. 1Affiliated Hospital of Qinghai University, Xining 810001, Qinghai, China;
    2Basis Department of Medical College, Qinghai University, Xining 810001, Qinghai, China;
    3Department of Pharmacy, Wannan Medical College, Wuhu 241001, Anhui, China
  • Received:2007-06-14 Revised:2008-04-15 Online:2008-08-26 Published:2020-10-12

摘要: 目的:探讨丙氧鸟苷(GCV)结合HSV-TK 基因对人乳腺癌细胞系体外及体内杀伤作用及其产生的旁观者效应。方法:采用脂质体转染法将GINaTK 载体转入包装细胞PA317。取病毒上清液感染人乳腺癌细胞, 得到带有HSV-TK 基因的TK 细胞, 并将其分别用于体外和体内实验。结果:体外实验结果显示, 当TK 细胞数占混合细胞10%时, 低浓度(10 μg/mL)的GCV 就可将50%左右的肿瘤细胞杀死。体内实验结果显示GCV 可明显抑制TK 细胞在BALBPC 小鼠体内的肿瘤形成。经GCV 治疗后, 肿瘤体积分别较对照组缩小约11.1%、30.6% 和47.2%(P<0.01);实验组肿瘤组织与对照组相比存在明显的病理学改变。结论:逆转录病毒可介导HSV-TK 基因转入小鼠乳腺癌细胞并获稳定表达, GCV 结合HSV-TK 基因在体内外对乳腺癌细胞均有杀伤作用, 且存在明显的旁观者效应。

关键词: 丙氧鸟苷, 单纯疱疹病毒胸苷激酶, 乳腺癌

Abstract: AIM:To study the killing effect and the bystander effect of gancyclovir (GCV)combining herpes simplex virus thymidine kinase (HSV-TK)gene therapy system on human breast cancer cells.METHODS: GINaTK retroviral vector containing HSV-TK gene was transduced into PA317 packaging cell by liposome transfection method.The human breast cancer cell line was infected by high titer viral supernatant. MA782/5S-8102/TK cells and MA782/5S-8102 cells were used in in vitro and in vivo study.RESULTS: Experimental results revealed that in in vitro study when the cell population ratio of MA782/5S-8102/TK cells reached 10%the tumor cell-killing proportion was almost 50%, in in vivo study GCV could suppress tumor formation of the MA782/5S-8102/TK cells.After treated with GCV, the median tumor volume of mice implanted with MA782/5S-8102/TK +MA782/5S-8102(1∶9)group MA782/5S-8102/TK +MA782/5S-8102(1∶1)and MA782/5S-8102/TK cellswas respectively decreased by 11.1% (P<0.01), 30.6% and 47.2% compared with the control tumors.Tumors treated with GCV revealed different histopathological features compared with the control tumors.CONCLUSION:The HSV-TK gene could be transducted into human breast cancer line under the mediation of retrovirus and be stable expressed, HSV-TK GCV gene therapy system could improve the antitumoral efficiency.The bystander effect could be observated in HSVTK GCV system in in vitro and in vivo.

Key words: gancyclovir, herpes simplex virus thymidine kinase (HSV-TK), breast cancer

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