Paired microbiome and metabolome analyses associate bile acid changes with colorectal cancer progression

Ting Fu, Tao Huan, Gibraan Rahman, Hui Zhi, Zhenjiang Xu, Tae Gyu Oh, Jian Guo, Sally Coulter, Anupriya Tripathi, Cameron Martino, Justin L. McCarville, Qiyun Zhu, Fritz Cayabyab, Brian Low, Mingxiao He, Shipei Xing, Fernando Vargas, Ruth T. Yu, Annette Atkins, Christopher LiddleJanelle Ayres, Manuela Raffatellu, Pieter C. Dorrestein, Michael Downes, Rob Knight, Ronald M. Evans

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Colorectal cancer (CRC) is driven by genomic alterations in concert with dietary influences, with the gut microbiome implicated as an effector in disease development and progression. While meta-analyses have provided mechanistic insight into patients with CRC, study heterogeneity has limited causal associations. Using multi-omics studies on genetically controlled cohorts of mice, we identify diet as the major driver of microbial and metabolomic differences, with reductions in α diversity and widespread changes in cecal metabolites seen in high-fat diet (HFD)-fed mice. In addition, non-classic amino acid conjugation of the bile acid cholic acid (AA-CA) increased with HFD. We show that AA-CAs impact intestinal stem cell growth and demonstrate that Ileibacterium valens and Ruminococcus gnavus are able to synthesize these AA-CAs. This multi-omics dataset implicates diet-induced shifts in the microbiome and the metabolome in disease progression and has potential utility in future diagnostic and therapeutic developments.

Original languageEnglish (US)
Article number112997
JournalCell Reports
Volume42
Issue number8
DOIs
StatePublished - Aug 29 2023
Externally publishedYes

Keywords

  • CP: Cancer
  • CP: Microbiology
  • bile acids
  • colorectal cancer
  • conjugated bile acids
  • high-fat diet
  • metabolome
  • microbiome

ASJC Scopus subject areas

  • General Biochemistry, Genetics and Molecular Biology

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