[1]陈 浩,黄 智,张 帅,等.微小核糖核酸- 29b通过靶向髓样细胞白血病- 1影响脑缺血/再灌注损伤时神经细胞凋亡[J].介入放射学杂志,2021,30(07):697-702.
 CHEN Hao,HUANG Zhi,ZHANG Shuai,et al.The effect of miR-29b on neurocyte apoptosis through targeting MCL-1 in cerebral ischemia/reperfusion injury[J].journal interventional radiology,2021,30(07):697-702.
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微小核糖核酸- 29b通过靶向髓样细胞白血病- 1影响脑缺血/再灌注损伤时神经细胞凋亡()

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《介入放射学杂志》[ISSN:1008-794X/CN:31-1796/R]

卷:
30
期数:
2021年07
页码:
697-702
栏目:
实验研究
出版日期:
2021-07-29

文章信息/Info

Title:
The effect of miR-29b on neurocyte apoptosis through targeting MCL-1 in cerebral ischemia/reperfusion injury
作者:
陈 浩 黄 智 张 帅 王黎洲 周 石
Author(s):
CHEN Hao HUANG Zhi ZHANG Shuai WANG Lizhou ZHOU Shi.
School of Medical Imaging, Guizhou Medical University, Guiyang, Guizhou Province 550004, China
关键词:
【关键词】 miR-29b 脑缺血/再灌注损伤 MCL-1 N2a细胞 细胞凋亡
文献标志码:
A
摘要:
【摘要】 目的 确定微小核糖核酸(microRNA,miRNA,miR)在脑缺血/再灌注(I/R)损伤中对神经细胞凋亡的影响,并探讨其潜在机制。方法 培养小鼠成神经细胞瘤(N2a)细胞,构建氧糖剥夺(OGD)/复氧(R)模型,模拟体外脑I/R状态。N2a细胞随机分为空白对照组(control)、OGD/R组(OGD/R)、OGD/R+转染miR-29b模拟物组(mimics)、OGD/R+转染miR-29b抑制剂组(inhibitor)、OGD/R+转染miR-29b模拟物阴性对照组(mimics NC)、OGD/R+转染miR-29b抑制剂阴性对照组(inhibitor NC)。实时定量聚合酶链反应(PCR)检测各组miR-29表达变化。细胞计数试剂盒(CCK)-8和流式细胞术分别检测miR-29b和miR-29b抑制剂对N2a细胞活力和凋亡的影响。免疫印迹法检测抗凋亡蛋白髓样细胞白血病(MCL)-1、B淋巴细胞瘤(BCL)-2及半胱氨酸天冬氨酸特异性蛋白酶(caspase)-3表达。双荧光素酶分析验证miR-29b与MCL-1间相互作用。结果 与control组相比,OGD/R组miR-29b表达明显升高。与OGD/R组相比,mimics组N2a细胞凋亡增加,存活率降低,MCL-1、BCL-2表达下调,caspase-3表达上调,而这种效应在inhibitor组受到逆转。双荧光素酶分析显示miR-29b可通过与MCL-1的3’非翻译区(UTR)端结合下调MCL-1表达。结论 miR-29b在脑I/R损伤过程中通过靶向MCL-1促进神经细胞凋亡。这为缺血性脑卒中治疗提供了一潜在的新靶点。

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备注/Memo

备注/Memo:
(收稿日期:2020- 06- 18)
(本文编辑:秋 实)
更新日期/Last Update: 2021-07-28