The effect of real-ambient PM2.5 exposure on the lung and gut microbiomes and the regulation of Nrf2

文献类型： 外文期刊

第一作者： Wang, Jianxin

作者： Wang, Jianxin;Si, Honglin;Li, Jianyu;Zhao, Yanjie;Gao, Tianlin;Zheng, Yuxin;Jiang, Menghui;Yan, Yongwei;Pi, Jingbo;Zhang, Rong;Chen, Rui;Chen, Wen

作者机构：

关键词： Lung; Gut; Microbiome; PM2; 5; Nrf2

期刊名称：ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY （ 影响因子：6.8； 五年影响因子：6.9 ）

ISSN： 0147-6513

年卷期： 2023 年 254 卷

页码：

收录情况： SCI

摘要： The influence of air pollution on human health has sparked widespread concerns across the world. Previously, we found that exposure to ambient fine particulate matter (PM2.5) in our "real-ambient exposure" system can result in reduced lung function. However, the mechanism of organ-specific toxicity is still not fully elucidated. The balance of the microbiome contributes to maintaining lung and gut health, but the changes in the microbiome under PM2.5 exposure are not fully understood. Recently, crosstalk between nuclear factor E2-related factor 2 (Nrf2) and the microbiome was reported. However, it is unclear whether Nrf2 affects the lung and gut micro -biomes under PM2.5 exposure. In this study, wild-type (WT) and Nrf2-/-(KO) mice were exposed to filtered air (FA) and real ambient PM2.5 (PM) in the " real-ambient exposure" system to examine changes in the lung and gut microbiomes. Here, our data suggested microbiome dysbiosis in lung and gut of KO mice under PM2.5 exposure, and Nrf2 ameliorated the microbiome disorder. Our study demonstrated the detrimental impacts of PM2.5 on the lung and gut microbiome by inhaled exposure to air pollution and supported the protective role of Nrf2 in maintaining microbiome homeostasis under PM2.5 exposure.

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