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U-2OS中抑癌基因pitx1突变的鉴定及分析 被引量:1

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摘要 目的克隆人骨肉瘤细胞U-2OS中抑癌基因pitx1,进行测序,并检测pitx1下游基因p53的表达情况。方法采用RT-PCR法扩增U-2OS中Pitx1基因,并进行克隆测序;采用定量PCR和western blot方法检测pitx1下游基因p53的RNA和蛋白水平表达情况。结果在U-2OS中抑癌基因pitx1发生突变,其下游基因p53的相对表达量显著低于pitx1野生型细胞株HOS。结论 pitx1属于重要的抑癌基因p53及原癌基因ras的上游调控因子,在pitx1中的突变可能导致了该细胞株的恶变及化疗耐药。
出处 《医学信息》 2011年第8期2288-2290,共3页 Journal of Medical Information
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同被引文献12

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