《中国康复理论与实践》 ›› 2020, Vol. 26 ›› Issue (6): 662-667.doi: 10.3969/j.issn.1006-9771.2020.06.007

• 基础研究 • 上一篇    下一篇

痘苗病毒致炎兔皮提取物促进小胶质细胞M1向M2极化、抑制炎性因子分泌的体外研究

龚诗立1,2,杨翠翠2,胡朝英2,王明洋2,张兰1,2()   

  1. 1.遵义医科大学基础药理教育部重点实验室,特色民族药教育部国际合作联合实验室,贵州遵义市 563000
    2.首都医科大学宣武医院药学部,北京市 100053
  • 收稿日期:2019-12-24 修回日期:2020-01-17 出版日期:2020-06-25 发布日期:2020-06-29
  • 通讯作者: 张兰 E-mail:lanizhg@126.com
  • 作者简介:龚诗立(1995-),女,汉族,贵州兴义市人,硕士研究生,主要研究方向:临床药理学、神经药理学。
  • 基金资助:
    1.北京市卫生系统高层次卫生技术人才项目(2014-2-014);2.首都科技领军人才培养工程项目(Z191100006119017);3.北京市博士后工作经费资助项目(2018-ZZ-105);4.中国博士后基金项目(2019M650776)

Promotion of Analgecine on Polarization of M1 Microglia to M2 and Inhibition on Secretion of Inflammatory Factors in Vitro

GONG Shi-li1,2,YANG Cui-cui2,HU Chao-ying2,WANG Ming-yang2,ZHANG Lan1,2()   

  1. 1. Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou 563000, China
    2. Department of Pharmacy of Xuanwu Hospital Capital University, Beijing 100053, China
  • Received:2019-12-24 Revised:2020-01-17 Published:2020-06-25 Online:2020-06-29
  • Contact: ZHANG Lan E-mail:lanizhg@126.com
  • Supported by:
    Beijing High-level Health and Technical Personal Plan(2014-2-014);Program for Training Capital Science and Technology Leading Talents(Z191100006119017);Beijing Postdoctoral Foundation(2018-ZZ-105);China Postdoctoral Science Foundation(2019M650776)

摘要:

目的 探讨痘苗病毒致炎兔皮提取物(AGC)对缺血性脑卒中细胞模型脑内炎症反应的影响及作用机制。方法 采用连二亚硫酸钠(Na2S2O2)无糖培养基在体外模拟缺血性脑卒中模型。将BV2细胞分为6组:对照组、对照加0.5 U/ml AGC组、氧糖剥夺再恢复(OGD/R)组,OGD/R加AGC (0.25 U/ml、0.5 U/ml、1.0 U/ml)组。OGD/R加AGC组氧糖剥夺1.5 h后换为正常培养基,同时给予不同浓度AGC,共同孵育3 h后进行细胞处理。取细胞上清液分别测定白介素-6 (IL-6)、肿瘤坏死因子-α (TNF-α)的含量。免疫荧光染色观察CD16++CD32+(M1型小胶质细胞)和CD206+(M2型小胶质细胞)细胞数。将BV2细胞分为7组:对照组、对照加0.5 U/ml AGC组、IL-4组、IL-4+脂多糖(LPS)+干扰素-γ(IFN-γ)组、IL-4+LPS+IFN-γ加AGC (0.25 U/m、0.5 U/m、1.0 U/ml)组。IL-4+LPS+IFN-γ加AGC 组IL-4处理24 h后,向细胞中加入LPS+IFN-γ处理18 h,加入相应浓度AGC 24 h后,流式细胞仪观察CD16+CD32和CD206的表达。结果 与对照组相比,OGD/R组细胞上清液中IL-6、TNF-α含量明显增加(P < 0.01),CD 16++CD32+细胞数增多,CD206+细胞数减少;与OGD/R组相比,AGC各剂量组IL-6、TNF-α含量均明显降低(P < 0.01),CD 16++CD32+细胞数减少,CD206+细胞数增多。与对照组比较,IL-4组CD206有增多趋势,CD16+CD32有减少趋势;与IL-4组比较,IL-4+LPS+IFN-γ组CD16+CD32有增多趋势,CD206有减少趋势;与IL-4+LPS+IFN-γ组比较,AGC各剂量组CD16+CD32有减少趋势,0.25 U/ml、0.5 U/ml AGC剂量组CD206有增多趋势,1.0 U/ml AGC 剂量组CD206表达增多(P < 0.05)。 结论 AGC可通过促进小胶质细胞从M1表型向M2表型极化,抑制炎症因子的分泌。

关键词: 缺血性脑卒中, 痘苗病毒致炎兔皮提取物, 小胶质细胞极化, 炎症

Abstract:

Objective To investigate the effect of analgecine (AGC) on inflammatory response in the cell model of ischemic stroke and its mechanism.Methods Sodium hydrosulfite (Na2S2O2) combined with sugar-free culture-medium was used to stimulate the model of ischemic stroke in vitro. BV2 cells were divided into six groups: control group, control with 0.5 U/ml AGC group, oxygen deprivation and recovery (OGD/R) group, OGD/R with AGC (0.25 U/ml, 0.5 U/ml, 1 U/ml) groups. After oxygen and glucose deprivation for 1.5 hours, they were changed to normal medium and given different concentrations of AGC in OGD/R with AGC groups. After co-incubation for three hours, the cells were treated. The content of interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) in the supernatant was detected. The expression of M1-type microglia marker CD16+CD32 and M2-type microglia marker CD206 were detected with immunofluorescent staining. BV2 cells were divided into seven groups: control group, control with 0.5 U/ml AGC group, IL-4 group, IL-4 + lipopolysaccharide (LPS) + interferon (IFN)-γ group, IL-4 + LPS + IFN-γ with AGC (0.25 U/ml, 0.5 U/ml, 1 U/ml) groups. After 24 hours of IL-4 treatment, LPS + IFN-γ were added for 18 hours, they were changed to normal medium and given different concentrations of AGC for 24 hours, the expression of CD16+CD32 and CD206 were observed by flow cytometry.Results Compared with the control group, the IL-6 and TNF-α level increased (P< 0.01), the number of CD16++CD32+ increased and the number of CD206+ decreased in OGD/R group. Compared with the OGD/R group, the IL-6 and TNF-α level decreased (P< 0.01), the number of CD16++CD32+ decreased and the number of CD206+ increased in AGC groups. Compared with the control group, the number of CD206 tended to increase, and the number of CD16+CD32 tended to decrease in IL-4 group; compared with IL-4 group, the number of CD16+CD32 tended to increase, and the number of CD206 tended to decrease in IL-4 + LPS + IFN-γ group; compared with IL-4 + LPS + IFN-γ group, the number of CD16+CD32 tended to decrease, and the number of CD206 tended to increase in IL-4 + LPS + IFN-γ + 0.25 U/ml AGC group and IL-4 + LPS + IFN-γ + 0.5 U/ml AGC group, while the number of CD206 increased in IL-4 + LPS + IFN-γ + 1.0 U/ml AGC group (P < 0.05). Conclusion AGC could inhibit the secretion of inflammation factors by promoting the polarization of microglia from M1 phenotype to M2 phenotype.

Key words: ischemic stroke, analgecine, microglia polarization, inflammation

中图分类号: