白血病细胞中Beta-Arrestin1与EZH2分子结合研究

Journal of Chongqing Medical University(2015)

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Abstract
目的:检测急性淋巴细胞白血病细胞(acute lymphoblastic leukemia,ALL)CCRF-CEM和Raji细胞中Beta-抑制蛋白1(Beta-Arrestin1)与Zeste增强子同源物-2蛋白(enhancer of Zeste homolog 2,EZH2)是否存在结合.方法:白血病细胞中,Western blot检测Beta-Arrestin1与EZH2表达水平,激光共聚焦(Confocal)检测Beta-Arrestin1与EZH2在细胞中的位置与共定位;免疫共沉淀(CO-IP)检测Beta-Arrestin1与EZH2结合能力.结果:Beta-Arrestin1与EZH2在白血病K562、CCRF-CEM和Raji细胞中均有表达.激光共聚焦结果显示Beta-Arrestin1与EZH2均在K562、CCRF-CEM和Raji细胞内共定位,CO-IP结果显示在K562,CCRF-CEM和Raji细胞中Beta-Arrestin1与EZH2结合.结论:在CCRF-CEM和Raji中,Beta-Arrestin1可与EZH2结合.
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