Global metabolic interaction network of the human gut microbiota for context-specific community-scale analysis

Nat Commun. 2017 Jun 6;8:15393. doi: 10.1038/ncomms15393.

Abstract

A system-level framework of complex microbe-microbe and host-microbe chemical cross-talk would help elucidate the role of our gut microbiota in health and disease. Here we report a literature-curated interspecies network of the human gut microbiota, called NJS16. This is an extensive data resource composed of ∼570 microbial species and 3 human cell types metabolically interacting through >4,400 small-molecule transport and macromolecule degradation events. Based on the contents of our network, we develop a mathematical approach to elucidate representative microbial and metabolic features of the gut microbial community in a given population, such as a disease cohort. Applying this strategy to microbiome data from type 2 diabetes patients reveals a context-specific infrastructure of the gut microbial ecosystem, core microbial entities with large metabolic influence, and frequently produced metabolic compounds that might indicate relevant community metabolic processes. Our network presents a foundation towards integrative investigations of community-scale microbial activities within the human gut.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Bacteria / metabolism
  • Biological Transport
  • Databases as Topic
  • Diabetes Mellitus, Type 2 / metabolism
  • Diabetes Mellitus, Type 2 / microbiology
  • Gastrointestinal Microbiome*
  • Humans
  • Male
  • Metabolic Networks and Pathways*