小鼠脑梗死后脑组织HDAC9的表达及其意义

目的检测线栓法大脑中动脉阻塞(MCAO)后小鼠不同部位脑组织HDCA9的表达及胞内分布变化,探讨HDAC9与缺血性脑卒中的关系。方法 21只雄性C57BL/6小鼠随机分为假手术组(9只)与手术组(12只),将手术组术后Longa评分2~3分的小鼠纳入MCAO组(9只),术后3 d断头取脑,采用免疫荧光染色观察HDAC9脑组织内分布位置与胞内分布变化,采用Western免疫印迹法与实时荧光定量PCR法检测各组不同部位(梗死侧/对侧皮层/MCAO组小脑/假手术组皮层/假手术组小脑)HDAC9的表达变化。结果(1)免疫荧光染色:脑梗死后,梗死灶周围脑组织HDAC9的荧光强度较其他部位明显增强。高倍镜...

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Published in南方医科大学学报 Vol. 37; no. 6; pp. 812 - 816
Main Author 麦汉滔 姜涛 张爱武 吕田明 杨灿洪 覃偲偲
Format Journal Article
LanguageChinese
Published 南方医科大学第三附属医院神经内科,广东 广州,510630%中山大学附属第一医院神经内科,广东 广州,510080 2017
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Summary:目的检测线栓法大脑中动脉阻塞(MCAO)后小鼠不同部位脑组织HDCA9的表达及胞内分布变化,探讨HDAC9与缺血性脑卒中的关系。方法 21只雄性C57BL/6小鼠随机分为假手术组(9只)与手术组(12只),将手术组术后Longa评分2~3分的小鼠纳入MCAO组(9只),术后3 d断头取脑,采用免疫荧光染色观察HDAC9脑组织内分布位置与胞内分布变化,采用Western免疫印迹法与实时荧光定量PCR法检测各组不同部位(梗死侧/对侧皮层/MCAO组小脑/假手术组皮层/假手术组小脑)HDAC9的表达变化。结果(1)免疫荧光染色:脑梗死后,梗死灶周围脑组织HDAC9的荧光强度较其他部位明显增强。高倍镜下与假手术组对比,梗死灶周围HDAC9胞浆内表达增多,核内表达减少;(2)蛋白与m RNA表达检测:与各组对比,梗死侧脑组织HDAC9表达显著升高,具有统计学差异(均P〈0.05),蛋白与m RNA表达情况相一致。结论 HDAC9与缺血性脑卒中密切相关,可能参与其病理生理过程。
Bibliography:44-1627/R
ischemic stroke;histone deacetylase;middle cerebral artery occlusion;subcellular localization
MAI Hantao1, JIANG Tao1, ZHANG Aiwu2, Lu Tianming1, YANG Canhong1, QIN Sisi1(1Department of Neurology, Third Affiliated Hospital of Southern Medical University, Guangzhou 510630, China; 2Department of Neurology, First AJfi'liated Hospital qf Sun Yat-sen University, Guangzhou 510080, China)
Objective To investigate the expression and the subcellular localization of HDAC9 in different brain regions of mice after cerebral ischemic injury and explore the association between HDAC9 and ischemic stroke. Methods Twenty-one male C57BL/6 mice were randomly divided into sham-operated group (n=9) and operated group (n=12). In the latter group, the mice with Zea-Longa neurological deficit scores of 2 or 3 following middle cerebral artery occlusion (MCAO) were assigned into MCAO group (n=9). Immunofluorescence was performed to investigate the subcellular localization of HDAC9 in the brain tissues on day 3 after MCAO. Wester
ISSN:1673-4254
DOI:10.3969/j.issn.1673-4254.2017.06.17