期刊文献+

联合应用胸苷激酶基因和胞嘧啶脱氨酶基因对胆囊癌细胞的杀伤作用 被引量:1

Killing effects of cytosine deaminase gene in combination with HSV-tk gene on gallbladder cancer cells
原文传递
导出
摘要 目的 研究双自杀基因的应用对胆囊癌细胞的杀伤作用和旁观者效应。方法 脂质体 法将CD和HSV tk双自杀基因转染入PA317细胞,用其病毒上清转染胆囊癌细胞GBC SD,G418筛 选出阳性细胞GBC SD/CD+tk,应用不同浓度的5 FC或(和)GCV,MTT法观察其杀伤作用;将不 同比例的GBC SD/CD+tk和GBC SD细胞混合,联合应用5 FC和GCV杀伤,观察其旁观者效应。 结果 单独应用5 FC或GCV均能对转染阳性的GBC SD/CD+tk细胞产生明显的杀伤效应,联合 应用可以在较小的剂量下产生更大的杀伤作用;当阳性细胞比例达到20%时即可对半数细胞产生杀 伤作用。结论 双自杀基因的应用对胆囊癌细胞具有明显的杀伤作用,其旁观者效应明显。 Objective To investigate the different cell-killing and bystander effects on GBC-SD cells with double suicide genes (cytosine deaminase and HSV-tk) transferred by retroviral vector and to find a more efficient and low-toxicity suicide gene therapy for gallbladder cancer. Methods Cytosine deaminase (CD) and HSV-tk double suicide genes were transfected into PA317 cells using lipofectamine. The positive clones were picked out and cultured after G418 was selected. The viral supernatant was collected and the GBC-SD cells were infected with the virus containing the double suicide genes. After G418 selection, the GBC-SD/CD+tk cells were collected and treated with 5-FC and/or GCV. The cytotoxicity efficacy was evaluated by MTT. Furthermore, the GBC-SD/CD+tk and GBC-SD cells were treated by 5-FC and GCV at different mixing ratios to explore their bystander effects. Results The virus containing double suicide gene was produced in PA317 cells and the cell line GBC-SD/CD+tk that expressed double suicide genes was acquired. The killing effect of 5-FC or GCV on GBS-SD/CD+tk cells was effective. The killing effect was more effective by using 5-FC in combination with GCV than by using 5-FC or GCV alone. When the ratio of GBC-SD/CD+tk cells reached 20%, 50% of the cells were killed. Conclusions The cell-killing efficacy of double suicide genes is higher than that of single suicide gene. Meanwhile, its bystander effect is obvious.
出处 《中华肝胆外科杂志》 CAS CSCD 2005年第1期35-37,共3页 Chinese Journal of Hepatobiliary Surgery
关键词 胸苷激酶基因 胞嘧啶脱氨酶基因 胆囊癌 肿瘤细胞 双自杀基因 Gallbladder neoplasms Suicide gene Gene therapy HSV-tk Cytosine deaminase
  • 相关文献

参考文献5

  • 1F奥斯伯 颜子颖译.精编分子生物学实验指南[M].北京:科学出版社,1998.671.
  • 2Black ME, Kokoris MS. Sabo P. ct al. Herpes simplex virus-1 thymidine kinase mutants created by semi-random sequence mutagenesis improve prodrug mediate tumor cell killing. Cancer Res.2001,61:3022-3026.
  • 3Diana KH, Raj KV,John CO. et al. Comparison of effects of three different toxin genes and their levels of expression on cell growth and bystander effect in lung adenocarcinoma. Cancer Res.1996,56:1315-1323.
  • 4Freeman SM, Aboud CN, Whartenby KA. et al.The bystander effect: tumor regression when a fraction of the tumor mass is genetically modified. Cancer Res, 199.3. 53:5274-5278.
  • 5Chen SH, Chen XH, Wang Y, et ah Combination gene therapy for liver metastasis of colon carcinoma in vivo. Proc Natl Acad Sci USA, 1995, 92: 2577-2581.

共引文献71

同被引文献25

  • 1王旭,王洁,董福生,董玉英,侯亚丽.HSV-tk与p53基因对涎腺多形性腺瘤细胞的杀伤作用[J].华西口腔医学杂志,2005,23(1):65-68. 被引量:3
  • 2洪涛,孙华,蒋丽萍,汪阳,卢明巍,何安慰.全反式维甲酸对脑胶质瘤细胞缝隙连接细胞间通讯功能的影响[J].江西医学院学报,2005,45(1):30-32. 被引量:5
  • 3李燕,付招娣,陈晓光,韩锐.姜黄素类似物对正常动物细胞和肿瘤细胞间通讯传递的影响[J].中国医学科学院学报,1996,18(2):111-115. 被引量:8
  • 4Moolten F L. Tumour chemosensitivity conferred by inserted herpes thymidine kinase genes: paradigm for a prospective cancer control strategy [J]. Cancer Res, 1986, 46(10): 5276-5281.
  • 5Culver K W, Ram Z, Wallbridge E, et al. In vivo gene transfer with retroviral vector-producer cells for treatment of experimental brain tumors [J]. Science, 1992, 256: 1550-1552.
  • 6Bi W L, Parysek L M, Warnick R, et al. In vitro evidence that metabolic cooperation is responsible for the bystander effect observed with HSVtk retroviral gene therapy [J]. Hum Gene Ther, 1993, 4: 725-731.
  • 7Wygoda M R, Wilson M R, Davids M A, et al. Detection of herpes simplex virus thymidine kinase-transduced cells from ganciclovir-mediated cytotoxicity by bystander cells [J]. Cancer Reso 1997, 57(9): 1699-1703.
  • 8Freeman S M, Abboud C N, Whartenby K A, et al. The ystander effect tumor regression when fraction of the tumor mass is genetically modified [J]. Cancer Res, 1993, 53(21): 5274-5283.
  • 9Ramesh R, Marrogi A J, Munshi A, et al. In vivo analysis of the ystander effect a cytokine cascade [J]. Exp Hematol, 1996, 24(7): 829-838.
  • 10Kianmanesh A R, Pen-in H, Panis Y, et al. A " distant " bystander effect of suicide gene therapy: regression of nontransduced tumors together with a distant transduced tumor[J]. Hum Gene Ther, 1997, 8: 1807.

引证文献1

二级引证文献2

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部