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姜黄素对miR-21靶控的信号转导蛋白K-ras的影响 被引量:4

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摘要 目的:探讨姜黄素对miR-21靶控的信号转导蛋白K-ras的影响。方法18只SD雄性大鼠,随机分为对照组、模型组和姜黄素组,每组6只。除对照组外,模型组和姜黄素组用二乙基亚硝胺( DENA)连续灌胃18周,姜黄素组于第9周用姜黄素灌胃,每周2次,连续10周;对照组先用生理盐水灌胃8周,9-18周用生理盐水+0.5%羧甲基纤维素钠灌胃。应用qRT-PCR技术检测miR-21的表达;Western blot法检测K-ras蛋白的表达。结果肝癌模型组miR-21基因的相对表达量较正常对照组明显增加( P〈0.05);姜黄素组miR-21基因相对表达量较肝癌模型组明显降低( P〈0.05),与对照组相比表达量增加,差异有统计学意义( P〈0.05);与对照组相比,模型组和姜黄素组肝癌组织中K-ras蛋白相对表达量均明显升高(P〈0.05),姜黄素组大鼠肝癌组织中K-ras蛋白相对表达量较模型组均明显降低( P 〈0.05)。Pearson相关分析显示,实验各组K-ras蛋白及miR-21的表达量均呈正相关( P〈0.05)。结论姜黄素可能通过调控miR-21靶控的信号转导子K-ras蛋白表达促进肝癌的发生、发展及侵袭转移,对肝癌生物靶向治疗及预后判断具有潜在临床应用价值。
出处 《临床与实验病理学杂志》 CAS CSCD 北大核心 2014年第12期1409-1411,共3页 Chinese Journal of Clinical and Experimental Pathology
基金 河南省教育厅自然科学基金(14A310003) 新乡医学院自然科学培育基金(2013ZD105)
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