ZHANG Ronggui, et al. Suicide gene therapy for mouse bladder cancer using HSV-tk/GCV system. [J]. Journal of Chongqing Medical University (4):513-515(2005)
ZHANG Ronggui, et al. Suicide gene therapy for mouse bladder cancer using HSV-tk/GCV system. [J]. Journal of Chongqing Medical University (4):513-515(2005) DOI: 10.13406/j.cnki.cyxb.2005.04.008.
Suicide gene therapy for mouse bladder cancer using HSV-tk/GCV system
目的:在体外和体内水平建立膀胱癌的单纯疱疹病毒-胸苷激酶/丙氧鸟苷(herpes simplex virus type thymidine Ki-nase/ganciclovir
HSV-tk/GCV)自杀基因系统
并验证该系统的有效性。方法:用逆转录病毒载体HSV-TK转染鼠膀胱癌细胞株T739
体外检测其对GCV的敏感性
在同基因鼠
分别建立T739和T739-TK膀胱癌腹腔肿瘤模型。当B超显示肿瘤直径约0.5
0
.8cm时
腹腔GCV给药6天
然后观察肿瘤大小变化及动物存活时间。结果:GCV对T739-TK细胞有显著杀伤作用
而对T739细胞的生长无影响
成功的建立了T739同基因鼠膀胱癌腹腔肿瘤模型
体内实验得到相应结果
转染了TK基因的T739鼠肿瘤明显变小
甚至消失
而未转染TK基因的T739鼠肿瘤继续增大
GCV对其无明显治疗作用
转染了TK基因的T739鼠存活时间显著延长。结论:在体外和体内水平
表达TK基因的肿瘤细胞均被GCV有效杀伤
这表明HSV-tk/GCV系统有可能成为基因治疗膀胱癌的有效方法。
Abstract
Objective:To establish a suicide gene therapy system HSV-tk/GCV for bladder cancer
a treatment in vitro as well as in vivo and to test its efficacy.Methods:Mouse bladder cancer cell line (T739) was transfected with retroviral vector HSV-tk gene.The sensitivity of T739-TK cells to GCV was detected in vitro.In the mouse model of bladder tumor
T739 or T739-TK was implanted beneath the peritoneum of syngeneic mice.When tumors grew to the size of 0.5~0.8cm
intraperitoneal administration of GCV was carried out for 6 days.Changes of tumor size and survival rate of mice were observed.Results:RT-PCR showed that TK gene was transferred into the T739 cell and expressed successfully. In vitro
T739-TK cells became sensitive to low concentrations of GCV.In vivo studies showed similar result.Significant tumor inhibition was found in the T739-TK group after administration of GCV
and the survival time of mice was prolonged.Conclusion:Tumor cells expressing HSV-tk gene were eradicated by administration of GCV in vitro as well as in vivo.
Effect of retroviral HSVtk gene transfer on mice bladder tumor growth in vivo
Value of inflammatory,pyroptosis,and ferroptosis biomarkers in the treatment and prognosis of bladder cancer
Correlation between serum KLF5 content and positive lymph node ratio and its predictive value for prognosis of patients with bladder cancer after radical operation
Value of inflammatory biomarkers in predicting the outcome of patients with muscle-invasive bladder cancer receiving different neoadjuvant treatment regimens
Application of the stoma incision-assisted technique in laparoscopic radical cystectomy and ileal conduit
Related Author
YE Gang
et al
张荣贵
Pei Xiaming
Li Hong
Liang Yu
Xie Yu
Chang Haiqing
Related Institution
Department of Urology,Xinqiao Hospital,Third Military Medical University
Department of Urology,Pingxiang People’s Hospital
Department of Urology,Hunan Cancer Hospital/The Affiliated Cancer Hospital of Xiangya School of Medicine,Central South University
Department of Urology,The Second Hospital,University of South China
Department of Urinary Surgery,Xinxiang Central Hospital,The Fourth Clinical College of Xinxiang Medical University