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2023年7月 第38卷 第7期11
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白藜芦醇抑制TLR4/NF-κB通路对毛细支气管炎小鼠的保护作用

Protective effect of resveratrol on bronchiolitis mice by inhibiting TLR4/NF-κB pathway

来源期刊: 广州医药 | 18-23 发布时间:2023-02-27 收稿时间:2025/11/13 18:38:22 阅读量:23
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关键词:
毛细支气管炎白藜芦醇TLR4NF-κB呼吸道合胞病毒
bronchiolitisresveratrolTLR4NF-κBrespiratory syncytial virus
DOI:
10.3969/j.issn.1000-8535.2023.02.003
收稿时间:
2022-08-06 
修订日期:
 
接收日期:
 
引用总数:
3  
目的 研究白藜芦醇通过抑制T样受体4/核因子-κB(TLR4/NF-κB)通路对呼吸道合胞病毒(RSV)毛细支气管炎小鼠的保护作用。方法 选取30只小鼠随机分为对照组、RSV组、给药组,建立RSV毛细支气管炎小鼠模型,检测小鼠肺组织中TLR4、NF-κB的变化;利用肺组织HE染色、ELISA法检测白藜芦醇给药前后气道炎症病变、IL-6、TNF-α因子水平,Western Blot法及实时定量PCR法检测TLR4、 NF-κB蛋白及基因表达等相关变化。结果 与对照组相比,RSV组小鼠组肺组织中TLR4、NF-κB水平升高,肺组织切片HE染色显示气道炎症细胞浸润加剧,ELISA检测炎性因子IL-6、TNF-α升高;而给药组处理后,肺组织TLR4、NF-κB的表达下调,病理改变减轻,炎性因子IL-6、TNF-α下降。结论 白藜芦醇可通过抑制TLR4/NF-κB通路抑制炎性因子的释放,从而减轻毛细支气管炎小鼠的气道炎症反应。
Objective To study the protective effect of resveratrol on lung tissue of respiratory syncytial virus(RSV) bronchiolitis mice by regulating TLR4/NF-κB pathway. Methods Thirty mice were randomly divided into control group, RSV group and resveratrol group. The mice models of RSV bronchiolitis were established, and the changes of TLR4 and NF-κB levels in lung tissues of mice were detected. HE staining and ELISA were used to detect airway inflammation, IL-6 and TNF-α levels before and after resveratrol administration. TLR4 and NF-κB protein and gene expressions were detected by Western Blot and real-time quantitative PCR. Results Compared with the control group, the levels of TLR4 and NF-κB in the lung tissues of mice with bronchiolitis were significantly increased. Airway inflammatory cell infiltration was aggravated in HE staining of lung tissue sections, and inflammatory factors IL-6 and TNF-α were significantly increased showing by ELISA. The expressions of TLR4 and NF-κB in resveratrol group were down-regulated after treatment. Conclusions Resveratrol can inhibit the release of inflammatory factors by inhibiting the TLR4/NF-κB pathway, play a protective role in mice with bronchiolitis.
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