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BM-cyclin1上调转录因子Sp1促进TopoⅡα表达逆转肿瘤多药耐药的研究 被引量:1

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摘要 目的:探讨BM-cyclin 1逆转人口腔上皮癌C-A120细胞多药耐药及其机制。方法:MTT法检测细胞增殖;RT-PCR及Western blot检测BM-cyclin 1对TopoⅡαmRNA、蛋白表达的影响,Western blot检测BM-cyclin 1对转录因子SP1、SP3表达的影响;报告基因法检测BM-cyclin 1对Sp1、Sp3转录调控的影响。结果:(1)BM-cyclin 1可以明显逆转C-A120细胞多药耐药:C-A120细胞对ADM、VP-16、DDP敏感性分别提高了6.0、8.2及1.7倍。(2)BM-cyclin 1明显上调TopoⅡαmRNA及蛋白表达上调。(3)BM-cyclin 1可明显诱导转录因子SP1表达并上调其转录活性。结论:BM-cyclin 1能够明显逆转C-A120细胞多药耐药性;并且这种逆转作用可能与BM-cyclin 1上调转录因子Sp1活性,增加TopoⅡα表达相关,为BM-cyclin 1进一步开发应用提供理论依据。
出处 《实用医学杂志》 CAS 北大核心 2014年第5期712-715,共4页 The Journal of Practical Medicine
基金 广州市科技局应用基础研究项目(编号:2011J4100051) 广东省自然科学基金博士启动项目(编号:S2012040006707)
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