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干扰素-ε联合阿糖胞苷诱导K562细胞凋亡的研究

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摘要 目的:研究干扰素(IFN-ε)联合小剂量阿糖胞苷(Ara-C)对K562细胞的诱导凋亡作用。方法:IFN-ε、Ara-C单独和联合作用K562细胞72 h后,用流式细胞术观察细胞凋亡水平,RT-PCR检测不同实验组Survivin基因的表达情况。结果:IFN-ε和Ara-C单独和联合应用K562细胞72h后,单独用药组和联合用药组均能促进细胞凋亡并下调Survivin基因的表达,且随着浓度的增加细胞凋亡、Survivin表达水平亦降低(P<0.05)。两药联合后效果更加明显(P<0.01)。结论:IFN-ε与Ara-C单独及联合应用均可诱导K562细胞凋亡,且存在剂量依赖性;通过Survivin mRNA的表达下调可能是其诱导凋亡的机制。Ara-C可增强IFN-ε对K562细胞的杀伤作用。
作者 杨光 周永安
出处 《山西职工医学院学报》 CAS 2009年第1期14-16,共3页 Journal of Shanxi Medical College for Continuing Education
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