通塞颗粒阻抑巨噬细胞炎症反应改善大鼠慢性阻塞性肺疾病急性加重  

Tongsai Granules inhibit autophagy and macrophage-mediated inflammatory response to improve acute exacerbations of chronic obstructive pulmonary disease in rats

作　　者：程蒙蒙 刘新光[1,2,3] 魏焱鑫 邢小香 刘览 辛楠 赵鹏 CHENG Mengmeng;LIU Xinguang;WEI Yanxin;XING Xiaoxiang;LIU Lan;XIN Nan;ZHAO Peng(Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases Co-constructed by Henan Province&Ministry of Education,Henan Key Laboratory of Chinese Medicine for Respiratory Disease,Henan University of Chinese Medicine,Zhengzhou 450046,China;Academy of Chinese Medical Sciences,Henan University of Chinese Medicine,Zhengzhou 450046,China;Department of Respiratory Medicine,First Affiliated Hospital of Henan University of Chinese Medicine,Zhengzhou 450046,China)

机构地区：[1]河南中医药大学呼吸疾病中医药防治省部共建协同创新中心//河南省中医药防治呼吸病重点实验室,河南郑州450046 [2]河南中医药大学中医药科学院,河南郑州450046 [3]河南中医药大学第一附属医院呼吸科,河南郑州450046

出　　处：《南方医科大学学报》2024年第10期1995-2003,共9页Journal of Southern Medical University

基　　金：河南省高校科技创新人才支持计划(24HASTIT073);河南省本科高校青年骨干教师培养计划(2023GGJS084);河南省高等学校重点科研项目(24A360013);郑州市科技协同创新专项(XTCX2021-05)。

摘　　要：目的探讨通塞颗粒(TSG)阻抑巨噬细胞炎症反应改善慢性阻塞性肺疾病急性加重期(AECOPD)大鼠的作用机制。方法24只SD大鼠随机分为对照(Control)组、模型(Model)组、TSG组和莫西沙星+沙丁胺醇(MXF+STL)组,6只/组。第1~8周建立慢性阻塞性肺疾病(COPD)大鼠模型,第9周第3天,经鼻滴入肺炎克雷伯杆菌建立AECOPD大鼠模型。第9周的第1~2天和第4~7天,Control组和Model组给予生理盐水灌胃,TSG组和MXF+STL组分别给予TSG和MXF+STL灌胃,灌胃结束后处死大鼠。HE染色观察大鼠肺组织病理变化;检测肺组织白细胞介素IL-1β、IL-6、肿瘤坏死因子TNF-α、基质金属蛋白酶MMP2和MMP9表达。采用脂多糖(LPS)刺激巨噬细胞MH-S,给予TSG含药血清及其代表成分干预,检测IL-1β、IL-6、TNF-α、环氧化酶COX-2及诱导型一氧化氮合酶(iNOS)mRNA水平,磷酸化P38(p-p38)、p-p62、微管相关蛋白1A/1B-轻链3(LC3)、Forkhead box O3(FoxO3a)及p-mTOR蛋白水平。结果TSG显著改善AECOPD大鼠肺组织损伤与肺功能,包括降低支气管壁厚度、肺泡平均线性截距及上调平均肺泡数(P<0.05);TSG明显抑制AECOPD大鼠肺组织炎症因子IL-1β、IL-6、TNF-α及基质金属蛋白酶MMP2和MMP9表达水平(P<0.01)。TSG显著抑制脂多糖诱导的巨噬细胞炎症因子IL-1β、IL-6、TNF-α及相关代谢酶COX-2、iNOS的表达(P<0.05)。血清药物化学联合网络药理鉴定了TSG含药血清10种化学成分,其对应466个靶点核心功能分析显示,TSG干预AECOPD可能与其主要成分木犀草素、槲皮素、贝母辛、贝母乙素等调控MAPK、mTOR、FoxO、自噬等有关。体外实验显示,木犀草素可以显著抑制LPS诱导巨噬细胞炎症反应及相关信号如p-p38,调控自噬相关信号FoxO3a、mTOR,以及抑制自噬相关蛋白p-p62、LC3的表达(P<0.05)。结论TSG抑制巨噬细胞炎症反应缓解AECOPD,其机制可能与调控p38、mTOR、FoxO3a信号及抑制自噬有关。Objective To investigate the inhibitory effect of Tongsai Granules(TSG)on macrophage-mediated inflammatory response to alleviate acute exacerbation of chronic obstructive pulmonary disease(AECOPD)in rats and explore the underlying mechanism.Methods Twenty-four rats were divided into control group,AECOPD model group,TSG treatment group,and moxifloxacin+salbutamol(MXF+STL)treatment group.In the rat models of COPD,AECOPD was induced by nasal instillation of Klebsiella pneumoniae on day 3 of week 9 after modeling,and saline,TSG or MXF+STL were administered via gavage on days 1 and 2 and days 4 to 7 of week 9.After the treatments,lung tissues were collected for examining for pathologies and expressions of inflammatory markers,MMP2,and MMP9.In cultured macrophage MH-S cells with LPS stimulation,the effect of TSG-medicated serum on IL-1β,IL-6,TNF-α,COX-2,and iNOS expressions and phosphorylation levels of p38,p-p62,LC3,FoxO3a,and mTOR were evaluated.Results TSG significantly improved lung pathologies and lung function in AECOPD rats by reducing bronchial wall thickness and mean alveolar linear intercept,increasing alveolar numbers,and reducing pulmonary expression of IL-1β,IL-6,TNF-α,MMP2 and MMP9.In MH-S cells,TSG significantly suppressed LPS-induced expressions of inflammatory cytokines,COX-2 and iNOS.Serum pharmacology coupled with network pharmacology identified 10 chemical components in TSG-medicated serum,and functional analysis of their 466 targets suggested that the therapeutic effect of TSG on AECOPD was mediated primarily by luteolin and quercetin,which regulate the MAPK,mTOR,FoxO,and autophagy pathways.In MH-S cells,luteolin significantly inhibited LPS-induced inflammatory responses and expressions of p-p38,FoxO3a,mTOR,p-p62 and LC3.Conclusion TSG reduces macrophage-mediated inflammatory responses to alleviate AECOPD in rats possibly by modulating p38,mTOR,and FoxO3a pathways and inhibiting autophagy.

关 键 词：通塞颗粒 慢性阻塞性肺疾病急性加重期 巨噬细胞 炎症反应 

分 类 号：R285.5[医药卫生—中药学]