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Microbes with higher metabolic independence are enriched in human gut microbiomes under stress.
Veseli, Iva; Chen, Yiqun T; Schechter, Matthew S; Vanni, Chiara; Fogarty, Emily C; Watson, Andrea R; Jabri, Bana; Blekhman, Ran; Willis, Amy D; Yu, Michael K; Fernàndez-Guerra, Antonio; Füssel, Jessika; Eren, A Murat.
Afiliação
  • Veseli I; Biophysical Sciences Program, The University of Chicago, Chicago, IL 60637, USA.
  • Chen YT; Department of Medicine, The University of Chicago, Chicago, IL 60637, USA.
  • Schechter MS; Data Science Institute and Department of Biomedical Data Science, Stanford University, Stanford, CA, 94305, USA.
  • Vanni C; Department of Medicine, The University of Chicago, Chicago, IL 60637, USA.
  • Fogarty EC; Committee on Microbiology, The University of Chicago, Chicago, IL 60637, USA.
  • Watson AR; MARUM Center for Marine Environmental Sciences, University of Bremen, Bremen, Germany.
  • Jabri B; Department of Medicine, The University of Chicago, Chicago, IL 60637, USA.
  • Blekhman R; Committee on Microbiology, The University of Chicago, Chicago, IL 60637, USA.
  • Willis AD; Department of Medicine, The University of Chicago, Chicago, IL 60637, USA.
  • Yu MK; Committee on Microbiology, The University of Chicago, Chicago, IL 60637, USA.
  • Fernàndez-Guerra A; Department of Medicine, The University of Chicago, Chicago, IL 60637, USA.
  • Füssel J; Department of Medicine, The University of Chicago, Chicago, IL 60637, USA.
  • Eren AM; Department of Biostatistics, University of Washington, Seattle, WA, 98195, USA.
bioRxiv ; 2023 May 26.
Article em En | MEDLINE | ID: mdl-37293035
ABSTRACT
A wide variety of human diseases are associated with loss of microbial diversity in the human gut, inspiring a great interest in the diagnostic or therapeutic potential of the microbiota. However, the ecological forces that drive diversity reduction in disease states remain unclear, rendering it difficult to ascertain the role of the microbiota in disease emergence or severity. One hypothesis to explain this phenomenon is that microbial diversity is diminished as disease states select for microbial populations that are more fit to survive environmental stress caused by inflammation or other host factors. Here, we tested this hypothesis on a large scale, by developing a software framework to quantify the enrichment of microbial metabolisms in complex metagenomes as a function of microbial diversity. We applied this framework to over 400 gut metagenomes from individuals who are healthy or diagnosed with inflammatory bowel disease (IBD). We found that high metabolic independence (HMI) is a distinguishing characteristic of microbial communities associated with individuals diagnosed with IBD. A classifier we trained using the normalized copy numbers of 33 HMI-associated metabolic modules not only distinguished states of health versus IBD, but also tracked the recovery of the gut microbiome following antibiotic treatment, suggesting that HMI is a hallmark of microbial communities in stressed gut environments.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2023 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2023 Tipo de documento: Article