Gut bacteria alleviate smoking-related NASH by degrading gut nicotine.

Gut bacteria alleviate smoking-related NASH by degrading gut nicotine.
复制标题

肠道细菌通过降解肠道尼古丁来缓解与吸烟相关的 NASH

DOI:
10.1038/s41586-022-05299-4
复制
发表时间:
2022-10
期刊:
影响因子:
64.8
通讯作者:
Jiang, Changtao
Jiang, Changtao
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Chen, Bo;Sun, Lulu;Zeng, Guangyi;Shen, Zhe;Wang, Kai;Yin, Limin;Xu, Feng;Wang, Pengcheng;Ding, Yong;Nie, Qixing;Wu, Qing;Zhang, Zhiwei;Xia, Jialin;Lin, Jun;Luo, Yuhong;Cai, Jie;Krausz, Kristopher W.;Zheng, Ruimao;Xue, Yanxue;Zheng, Ming-Hua;Li, Yang;Yu, Chaohui;Gonzalez, Frank J.;Jiang, Changtao

文献摘要

参考文献

被引文献

相似文献

吸烟与非酒精性脂肪性肝病(NAFLD)呈正相关,但这种关联的潜在机制尚不清楚。在这里,我们报告说,尼古丁积累在肠道吸烟和激活肠道AMPKα。值得注意的是,我们确定肠道细菌Bacteroides xylanisolvens作为有效的尼古丁降解剂。B。在尼古丁暴露的小鼠中,木聚糖溶剂化物定殖降低了肠道尼古丁浓度,并改善了尼古丁加剧的NAFLD进展。从机制上讲,AMPKα促进鞘磷脂磷酸二酯酶3(SMPD 3)的磷酸化,稳定后者,从而增加肠道神经酰胺的形成,这有助于NAFLD的进展。我们的研究结果确立了肠道尼古丁积累在NAFLD进展中的作用,并揭示了人类肠道中能够代谢尼古丁的内源性细菌。这些发现表明了一种可能的途径来减少吸烟加剧NAFLD的进展。
Tobacco smoking is positively correlated with nonalcoholic fatty liver disease (NAFLD), but the underlying mechanism for this association is unclear. Here, we report that nicotine accumulates in the intestine during tobacco smoking and activates intestinal AMPKα. Notably, we identify the gut bacterium Bacteroides xylanisolvens as an effective nicotine degrader. B. xylanisolvens colonization reduces intestinal nicotine concentrations in nicotine-exposed mice, and it improves nicotine-exacerbated NAFLD progression. Mechanistically, AMPKα promotes the phosphorylation of sphingomyelin phosphodiesterase 3 (SMPD3), stabilizing the latter and thus increasing intestinal ceramide formation, which contributes to NAFLD progression. Our results establish a role for intestinal nicotine accumulation in NAFLD progression and reveal an endogenous bacterium in the human intestine capable of metabolizing nicotine. These findings suggest a possible avenue to reduce tobacco smoking-exacerbated NAFLD progression.
尼古丁刺激 α7 烟碱乙酰胆碱受体抑制脂多糖诱导的先兆子痫样小鼠模型中蜕膜 M1 巨噬细胞的抗炎症极化
DOI: 10.3389/fimmu.2021.642071
发表时间: 2021
影响因子: 7.3
作者:
Han X;Li W;Li P;Zheng Z;Lin B;Zhou B;Guo K;He P;Yang J
通讯作者: Yang J
DOI: 10.1186/s40168-021-01064-3
发表时间: 2021-05-21
期刊: Microbiome
影响因子: 15.5
作者:
Liu C;Du MX;Abuduaini R;Yu HY;Li DH;Wang YJ;Zhou N;Jiang MZ;Niu PX;Han SS;Chen HH;Shi WY;Wu L;Xin YH;Ma J;Zhou Y;Jiang CY;Liu HW;Liu SJ
通讯作者: Liu SJ
DOI: 10.1038/s41395-018-0283-5
发表时间: 2019-03-01
影响因子: 9.8
作者:
Jung, Hyun-Suk;Chang, Yoosoo;Ryu, Seungho
通讯作者: Ryu, Seungho
DOI: 10.1074/jbc.m111.315481
发表时间: 2012-01-02
影响因子: 4.8
作者:
Filosto, Simone;Ashfaq, Majid;Goldkorn, Tzipora
通讯作者: Goldkorn, Tzipora
DOI: 10.1073/pnas.1219451110
发表时间: 2013-05-28
影响因子: 11.1
作者:
Everard, Amandine;Belzer, Clara;Cani, Patrice D.
通讯作者: Cani, Patrice D.