大理大学学报 ›› 2020, Vol. 5 ›› Issue (2): 56-60.DOI: 10. 3969 / j. issn. 2096-2266. 2020. 02. 012

• 基础医学 • 上一篇    下一篇

心脉隆注射液对大鼠脑缺血/再灌后小胶质细胞活化和不同亚型分化的影响

沈 磊1,2 ,伍倬2 ,刘晓艺 3 ,李英2 ,李秋镜 2   

  1. (1.云南省昆虫生物医药研发重点实验室,云南大理 671000;2.大理大学药学与化学学院,
    云南大理 671000;3.大理大学临床医学院,云南大理 671000)
  • 收稿日期:2019-04-15 修回日期:2019-04-24 出版日期:2020-02-15 发布日期:2020-02-15
  • 作者简介:沈磊,副教授,博士,主要从事神经药理学研究。
  • 基金资助:
    国家自然科学基金资助项目(81560634);云南省昆虫生物医药研发重点实验室开放课题资助项目(2016-18);
    大理大学大学生科研基金资助项目(KYSX201707);大学生创新创业训练计划资助项目(S-CXCY-2017-16)

Influence of Xinmailong Injection on Microglia Activation and Subtype Differentiation after Cerebral#br# Ischemia/Reperfusion in Rats

Shen Lei 1, 2 , Wu Zhuo 2 , Liu Xiaoyi 3 , Li Ying 2 , Li Qiujing 2   

  1. (1.Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, Dali, Yunnan 671000, China; 2. College of Pharmacy
    and Chemistry, Dali University, Dali, Yunnan 671000, China; 3. Clinical College, Dali University, Dali, Yunnan 671000, China)
  • Received:2019-04-15 Revised:2019-04-24 Online:2020-02-15 Published:2020-02-15

摘要: 目的:研究心脉隆注射液(XML)对大鼠大脑中动脉阻塞/再灌注(MCAO/R)后小胶质细胞活化和不同亚型分化的影响。
方法:建立大鼠大脑MCAO/R模型,于再灌1 h后给药,连续3次,每次间隔24 h。采用免疫荧光法观察XML对缺血半暗带区
钙离子接头蛋白-1(Iba-1)阳性细胞(即激活的小胶质细胞)密度的影响,采用Q-PCR法测定XML对缺血半暗带区CD16和
Arginase-1基因表达水平的影响。结果:与MCAO/R模型组相比,XML可显著减少MCAO/R大鼠缺血半暗带区增加的小胶质细
胞密度,降低CD16基因表达水平,但不影响Arginase-1基因表达水平。结论:XML能降低缺血半暗带区小胶质细胞的激活,减
少小胶质细胞向M 1 亚型的转化,而不影响其向M 2 亚型转化。

关键词: 心脉隆注射液, 脑缺血/再灌, 小胶质细胞, M 1 亚型, M 2 亚型

Abstract:  Objective: To study the influence of Xinmailong Injection(XML)on microglia activation and subtype differentiation after
middle cerebral artery occlusion/reperfusion(MCAO/R)in rats. Methods: After establishment of MCAO/R models, the medicines
were given after 1 h reperfusion, 3 times in total and 24 h interval each time. Then, the influences of XML on Iba-1+ cellular density in
ischemic penumbra were observed by immunofluorescence method, the effects of XML on the levels of CD16 and Arginase-1 gene
expression in ischemic penumbra were measured by Q-PCR. Results: Compared with MCAO/R model group, XML significantly
decreased activated microglia density in ischemic penumbra after MCAO/R in rats, reduced the levels of CD16 gene expression, while
could not affect Arginase-1 gene expression. Conclusion: XML reduced microglia activation in ischemic penumbra, decreased the
transformation of microglia to M 1 subtype, but not affect microglia transformation to M 2 subtype.

Key words:  Xinmailong Injection, cerebral ischemia/reperfusion, microglia, M 1 subtype, M 2 subtype