[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()
《介入放射学杂志》[ISSN:1008-794X/CN:31-1796/R]
- 卷:
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30
- 期数:
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2021年07
- 页码:
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697-702
- 栏目:
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实验研究
- 出版日期:
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2021-07-29
文章信息/Info
- Title:
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The effect of miR-29b on neurocyte apoptosis through targeting MCL-1 in cerebral ischemia/reperfusion injury
- 作者:
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陈 浩; 黄 智; 张 帅; 王黎洲; 周 石
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- Author(s):
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CHEN Hao; HUANG Zhi; ZHANG Shuai; WANG Lizhou; ZHOU Shi.
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School of Medical Imaging, Guizhou Medical University, Guiyang, Guizhou Province 550004, China
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- 关键词:
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【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:
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A
- 摘要:
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【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:
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(收稿日期:2020- 06- 18)
(本文编辑:秋 实)
更新日期/Last Update:
2021-07-28