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过表达miR-200c对人髓核细胞凋亡的影响及其机制 被引量:1

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摘要 目的观察过表达miR-200c对人髓核细胞(HNPCs)凋亡的影响,并探讨其可能的作用机制。方法体外培养HNPCs,将HNPCs分为观察组、阴性组和空白组,观察组转染hsa-miR-200c mimics,阴性组转染阴性对照mimics-NC,空白组未经任何干预。转染后24 h,采用real-time PCR法检测3组细胞miR-200c的表达,流式细胞仪测算细胞凋亡率,ELISA平板计数法检测Caspase3/7活性,Western blotting法检测3组细胞酪氨酸蛋白激酶受体B(Trk B)蛋白。结果观察组、阴性组和空白组细胞miR-200c相对表达量分别为8.11±0.21、1.07±0.04、0.99±0.05,细胞凋亡率分别为23.6%±3.1%、1.5%±0.2%、1.6%±0.1%,Caspase3/7活性分别为299.237±24.245、119.476±10.657、117.317±11.317,Trk B蛋白相对表达量分别为0.48±0.11、0.50±0.12、0.15±0.06,观察组与阴性组、空白组比较,P均<0.01。结论过表达miR-200c能够促进HNPCs的凋亡,其机制可能与调控Trk B的表达有关。
出处 《山东医药》 CAS 北大核心 2017年第22期30-32,共3页 Shandong Medical Journal
基金 广东省佛山市卫生和计划生育局医学科研课题(20160148)
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