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RNAi干扰食管癌EC9706细胞MTA1基因表达对侵袭和迁移的影响

, PP. 503-505

Keywords: MTA,RNA干扰,侵袭,迁移

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Abstract:

目的采用RNAi抑制食管癌EC9706细胞株MTA1基因的表达,观察对食管癌细胞侵袭和迁移的影响。方法用脂质体包裹转染沉默MTA1表达的siRNA表达载体入食管癌细胞EC9706。定量RT-PCR和免疫印迹分别检测MTA1mRNA和蛋白表达情况;划痕损伤实验和细胞体外侵袭实验分别测定迁移和侵袭的影响。结果定量RT-PCR检测显示,MTA1基因的表达水平明显降低;转染沉默MTA1的siRNA表达载体组的食管癌细胞划痕未愈合,穿透Matrigel的细胞数量明显减少,与未转染组、转染空载体组和转染无关序列siRNA载体组比较差异有显著性(P<0.05)。结论RNA干扰介导的MTA1基因表达沉寂可有效降低食管癌细胞侵袭和迁移;MTA1基因可能成为肿瘤治疗上有前途的分子靶点。

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