iScience (Jun 2023)

A consortium of three-bacteria isolated from human feces inhibits formation of atherosclerotic deposits and lowers lipid levels in a mouse model

  • Zhuye Jie,
  • Qian Zhu,
  • Yuanqiang Zou,
  • Qili Wu,
  • Min Qin,
  • Dongdong He,
  • Xiaoqian Lin,
  • Xin Tong,
  • Jiahao Zhang,
  • Zhu Jie,
  • Wenwei Luo,
  • Xiao Xiao,
  • Shiyu Chen,
  • Yonglin Wu,
  • Gongjie Guo,
  • Shufen Zheng,
  • Yong Li,
  • Weihua Lai,
  • Huanming Yang,
  • Jian Wang,
  • Liang Xiao,
  • Jiyan Chen,
  • Tao Zhang,
  • Karsten Kristiansen,
  • Huijue Jia,
  • Shilong Zhong

Journal volume & issue
Vol. 26, no. 6
p. 106960

Abstract

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Summary: By a survey of metagenome-wide association studies (MWAS), we found a robust depletion of Bacteroides cellulosilyticus, Faecalibacterium prausnitzii, and Roseburia intestinalis in individuals with atherosclerotic cardiovascular disease (ACVD). From an established collection of bacteria isolated from healthy Chinese individuals, we selected B. cellulosilyticus, R. intestinalis, and Faecalibacterium longum, a bacterium related to F. prausnitzii, and tested the effects of these bacteria in an Apoe/− atherosclerosis mouse model. We show that administration of these three bacterial species to Apoe−/− mice robustly improves cardiac function, reduces plasma lipid levels, and attenuates the formation of atherosclerotic plaques. Comprehensive analysis of gut microbiota, plasma metabolome, and liver transcriptome revealed that the beneficial effects are associated with a modulation of the gut microbiota linked to a 7α-dehydroxylation–lithocholic acid (LCA)–farnesoid X receptor (FXR) pathway. Our study provides insights into transcriptional and metabolic impact whereby specific bacteria may hold promises for prevention/treatment of ACVD.

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