摘要
目的 探讨Fas基因转染对膀胱癌细胞的作用。 方法 将人FascDNA通过脂质体导入膀胱癌细胞EJ中 ,并利用Northernblot、原位杂交、流式细胞术检测细胞的FasmRNA和分子表达。用流式细胞仪、DNA梯形带和MTT法分析顺铂对转染前后的EJ细胞抑制增殖和诱导凋亡的能力。 结果 Fas基因转染可明显增强膀胱癌细胞EJ的Fas表达 ,顺铂对转染后的EJ细胞抑制细胞增殖和诱导凋亡的能力明显增强。 结论 转染的Fas基因可显著上调膀胱癌细胞EJ的Fas表达 ,促进细胞凋亡 。
Objective To study the effect of Fas gene transfection on bladder cancer cells. Methods Fas cDNA were transduced into bladder cancer cells EJ by DOTAP liposomal transfection regeant. Northern blot,in situ hybrization and flow cytometric evaluation were used to confirm the Fas mRNA and protein expression. The apoptosis and proliferation of EJ cells pre and posttransfection induced by cisplatin were analysed by flow cytometry、DNA ladder and MTT methods. Results Transfection of Fas gene can significantly upregulate the expression of Fas in human bladder cancer EJ cells. Apoptosis and decrease of proliferation were easily induced by cisplatin in the transfected EJ cells. Conclusions Fas system might involve in the development and progression of urogenital malignant tumors. Transfection of Fas gene by lipofectin can significantly upregulate the Fas expression in target cell. The synergistic cytotoxic effect obtainted in EJ cells suggested that combined use of Fas gene transfection and cisplatin may help in the treatment of cisplatin resistant bladder cancer.
出处
《中华泌尿外科杂志》
CAS
CSCD
北大核心
2000年第12期727-729,共3页
Chinese Journal of Urology
