带hTERT启动子的腺病毒干扰ERCC1基因表达逆转卵巢癌顺铂耐药的研究Interfering expression of ERCC1 by adenovirus with hTERT promoter reverses cisplatin resistance in ovarian cancer cell lines
刘微;毕秋英;瞿全新;
摘要(Abstract)：
目的:研究带hTERT启动子的腺病毒通过干扰ERCC1基因表达而逆转卵巢癌顺铂耐药的作用。方法:以1、10、50、80感染复数(MOI)的重组腺病毒分别感染卵巢癌细胞株SKOV3、卵巢癌细胞顺铂耐药株SKOV3/DDP和脐静脉内皮细胞ECV304,同时以相同滴度的空载体腺病毒感染细胞,将感染前的细胞作为对照,以RT-PCR方法检测重组腺病毒转染细胞中ERCC1 mRNA表达,以Western blot方法检测重组腺病毒转染细胞中ERCC1蛋白表达,并以MTT法检测肿瘤细胞对顺铂化疗敏感性的影响。结果:(1)在SKOV3及SKOV3/DDP细胞中,不同剂量Ad-hTERT-ERCC1 shRNA转染组与转染前相比,ERCC1 mRNA及ERCC1蛋白表达水平下调,差异有统计学意义(P<0.01)。而在空载体腺病毒转染组及ECV304细胞中,ERCC1 mRNA及ERCC1蛋白表达水平无改变,差异无统计学意义(P>0.05);(2)重组腺病毒转染后,SKOV3/DDP细胞对顺铂的敏感性显著增加(P<0.01),并呈剂量依赖性。结论:带hTERT启动子的腺病毒能够通过干扰ER-CC1基因表达而逆转卵巢癌顺铂耐药,并且具有剂量依赖性。
关键词(KeyWords)： 卵巢肿瘤;顺铂耐药;ERCC1;重组腺病毒
基金项目(Foundation):
作者(Authors): 刘微;毕秋英;瞿全新;
DOI: 10.13283/j.cnki.xdfckjz.2012.04.007
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