中国中医科学院中药研究所;新疆维吾尔自治区药物研究所;
明确天山堇菜提取物的抗甲型H1N1流感病毒药效,探索其免疫调节的作用机制。采取甲型H1N1感染小鼠致肺炎模型,分为正常组、模型组、达菲组、天山堇菜提取物320、160、80 mg·kg-1剂量组,检测肺指数、肺组织病毒载量、肺组织中免疫因子、脾组织中免疫细胞Th1/Th2、Th17/Treg比例、脾组织中NK细胞百分比和激活量;进行肺部病理学观察。与正常组比较,模型组小鼠肺指数显著升高(P<0.01);病毒载量显著上升(P<0.01);TNF-α、TGF-β含量显著升高(P<0.01),IL-17A、IFN-γ有升高趋势但无统计学差异,IL-12基本无差别;Th1/Th2比例显著升高(P<0.05),Th17/Treg有降低趋势,但无显著性差异;脾组织中总NK细胞百分比显著升高(P<0.01)、活化的NK细胞占比显著升高(P<0.05);肺组织间质出现大范围的炎症渗出,伴随明显的瘀血现象,且肺组织间质有粘液渗出。与模型组比较,天山堇菜提取物能够显著降低小鼠肺指数(P<0.05);降低小鼠肺组织中病毒载量(P<0.01);降低TNF-α和TGF-β含量,升高IL-17A、IFN-γ和IL-12含量(P<0.01);增加活化NK细胞数量(P<0.01);并能够改善肺组织病变情况。天山堇菜提取物能够通过减轻肺部损伤、降低病毒载量、抑制炎症反应、调节关键细胞因子以及激活免疫细胞等多重机制发挥抗甲型H1N1流感病毒感染的作用。
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基本信息:
DOI:10.13242/j.cnki.bingduxuebao.004531
中图分类号:R285.5
引用信息:
[1]包蕾,刘燕,耿子涵等.天山堇菜提取物对甲型H1N1流感病毒感染小鼠的抗病毒及免疫调节作用研究[J].病毒学报,2024,40(04):695-704.DOI:10.13242/j.cnki.bingduxuebao.004531.
基金信息:
新疆维吾尔自治区自然科学基金杰出青年科学基金:(项目号:2021D01E26),题目:基于Toll样受体3/7(TRL3/7)、维甲酸诱导基因1(RIG-1)受体探讨天山革菜总黄酮对流感病毒感染引起宿主细胞固有免疫应答的调控机制;; 自治区创新环境(人才、基地)建设专项:(项目号:PT2305),题目:地产中药民族药活性筛选、药效评价及机制研究平台建设~~