华西口腔医学杂志

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HSV-tk与p53基因对涎腺多形性腺瘤细胞的杀伤作用

王 旭1,王 洁1,董福生2,董玉英2,侯亚丽1   

  1. 1.河北医科大学口腔医学院 病理室;2.河北医科大学口腔医院 口腔颌面外科,河北 石家庄050017
  • 收稿日期:2005-02-25 修回日期:2005-02-25 出版日期:2005-02-20 发布日期:2005-02-20
  • 通讯作者: 王 洁,Tel: 0311-6265780
  • 作者简介:王 旭(1963-),女,河北人,副教授,博士
  • 基金资助:

    国家自然科学基金资助项目(30271422);国家留学人员科技活动择优资助项目(2002年);河北省自然科学基金资助项目 (C2004000624)

The Effects of HSV-tk Suicide Gene and Wild-type p53 Gene on Pleomorphic Adenoma Cells of Salivary Gland

WANG Xu1,WANG Jie1,DONG Fu-sheng2,DONG Yu-ying2,HOU Ya-li1   

  1. 1.Dept.ofOral Pathology,School ofStomatology, Hebei Medical University,Shijiazhuang050017,China; 2.Dept.ofOral andMaxillofacialSurgery,School ofStomatology,He- bei Medical University,Shijiazhuang050017,China
  • Received:2005-02-25 Revised:2005-02-25 Online:2005-02-20 Published:2005-02-20

摘要: 目的 观察腺病毒介导的单纯疱疹病毒胸苷激酶(HSV-tk)基因、野生型p53基因(wt-p53)联合杀伤人涎腺 多形性腺瘤细胞的效果。方法 采用腺病毒介导的HSV-tk基因、wt-p53基因联合转染人涎腺多形性腺瘤细胞,逆 转录聚合酶链式反应(RT-PCR)检测转染后的基因表达;四唑盐比色(MTT)法测定tk与p53基因治疗后对肿瘤细 胞的杀伤作用及旁观者效应,并采用相差显微镜观察基因治疗后肿瘤细胞的形态学变化。结果 单独转染wt-p53 及HSV-tk/GCV基因5 d后,涎腺多形性腺瘤细胞的存活率分别为54%和38%;两者联合转染5 d后,细胞的存活率 降至20%,两者差异有显著性(P<0.05)。结论 HSV-tk、wt-p53基因联合应用对涎腺多形性腺瘤的杀伤作用强于 此两基因单独应用的杀伤作用。

关键词: 腺瘤, 涎腺, 基因治疗, 野生型p53, 单纯疱疹病毒胸苷激酶基因

Abstract:

Objective To studythe therapeutic effects of combined gene therapy ofwild type p53 (wt-p53) and herpes simplex virus thymidine kinase (HSV-tk) gene on pleomorphic adenoma cells of salivary gland.Methods Wild type p53 and HSV-tk gene were transfected into human pleomorphic adenoma cells of salivary gland by using recombinant adenovirus vector. The effi- ciency of transfection was checked and gene was expressed by RT-PCR methods. The cell inhibition after transfected was verified by light microscope and MTT.Results The proliferation of the pleomorphic adenoma cells transfected wt-p53 and HSV-tk gene was inhibited and the cell survival rate decreased to 54% and 38% respectively in 5 days. However, whenwt-p53 gene combined withHSV-tk/GCV system, the killing effects was significantly stronger (P<0.05) and the cell survival rate decreased to 20%. Conclusion Combining p53 gene withHSV-tk/GCV system for gene therapy in pleomorphic adenoma cells of salivary gland is a valuable method.

Key words: adenoma, salivary gland, gene therapy, wild type p53, herpes simplex virus thymidine kinase gene