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胃癌中Runx3基因甲基化表达及临床研究 被引量:5

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摘要 目的:通过检测胃癌中Runx3基因启动子区域甲基化状态及Runx3基因表达情况,探讨Runx3基因启动子区域甲基化及表达在胃癌发生和发展过程中的意义。方法:采用DNA甲基化特异性PCR(MSP)技术分别对9种胃癌细胞系和35例胃癌患者手术切除肿瘤组织及其癌旁组织Runx3基因启动子区域甲基化进行检测,同时采用逆转录-聚合酶链反应(RT-PCR)检测Runx3 mRNA的表达情况。结果:在7种胃癌细胞系中Runx3基因启动子区域过度甲基化;Runx3基因在35例胃癌及其癌旁组织中甲基化率分别为40.0%(14/35)和8.6%(3/35);胃癌组织标本中Runx3基因表达(0.5938±0.1007)较癌旁正常组织表达(0.8311±0.2872)明显下调,差异有统计学意义(P<0.05)。Runx3 mRNA在胃癌标本的表达与其病理临床特征密切相关,在伴有淋巴结转移和低分化的胃癌组织标本中Runx3 mRNA的表达显著下调(P<0.01)。结论:Runx3基因启动子区域甲基化是导致Runx3基因失活的主要原因之一,与胃癌的发生发展密切相关,可作为胃癌早期诊断的分子标记物及分子治疗的靶点。
出处 《长江大学学报(自科版)(下旬)》 CAS 2009年第2期16-19,共4页 Journal of Yangtze University
基金 湖北省教育厅中青年项目(Q20091207)
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