Disease-specific loss of microbial cross-feeding interactions in the human gut
- PMID: 37863966
- PMCID: PMC10589287
- DOI: 10.1038/s41467-023-42112-w
Disease-specific loss of microbial cross-feeding interactions in the human gut
Abstract
Many gut microorganisms critical to human health rely on nutrients produced by each other for survival; however, these cross-feeding interactions are still challenging to quantify and remain poorly characterized. Here, we introduce a Metabolite Exchange Score (MES) to quantify those interactions. Using metabolic models of prokaryotic metagenome-assembled genomes from over 1600 individuals, MES allows us to identify and rank metabolic interactions that are significantly affected by a loss of cross-feeding partners in 10 out of 11 diseases. When applied to a Crohn's disease case-control study, our approach identifies a lack of species with the ability to consume hydrogen sulfide as the main distinguishing microbiome feature of disease. We propose that our conceptual framework will help prioritize in-depth analyses, experiments and clinical targets, and that targeting the restoration of microbial cross-feeding interactions is a promising mechanism-informed strategy to reconstruct a healthy gut ecosystem.
© 2023. Springer Nature Limited.
Conflict of interest statement
S.C.F. is an inventor on patents and has acted as an advisor to BiomeBank and Microbiotica. R.B.Y. has acted as an advisor to BiomeBank. All other authors have no competing interests to declare.
Figures
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