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针对CD44的siRNA对脑胶质瘤细胞A172增殖与凋亡的影响

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摘要 目的:通过RNA干涉下调CD44在脑胶质瘤细胞A172中的表达,观察CD44下调后对胶质瘤细胞增殖、迁移和侵袭的影响。方法:根据CD44基因序列设计并合成的siR-NA片段(CD44-siRNA)转染A172细胞,利用荧光实时定量qRT-PCR检测细胞中CD44基因mRNA水平的变化;Westernblot检测CD44蛋白水平的变化;MTT法检测A172细胞增殖;流式细胞术(FCM)检测A172细胞周期与凋亡。结果:CD44-siRNA下调了A172细胞中CD44 mRNA水平与蛋白水平的表达,A172细胞的增殖能力明显降低,并将A172细胞阻滞于G0/G1期,A172细胞的凋亡数量明显增加,尤其是晚期凋亡细胞数。结论:CD44-siRNA能够下调CD44的表达,有效抑制A172脑胶质瘤细胞的增殖,并促进其凋亡,为以CD44为靶点的脑胶质瘤基因治疗提供理论依据。
出处 《细胞与分子免疫学杂志》 CAS CSCD 北大核心 2012年第3期276-278,共3页 Chinese Journal of Cellular and Molecular Immunology
基金 国家自然科学基金资助项目(30872978)
关键词 CD44 RNAI 脑胶质瘤
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