Gut dopamine kick: How gut microbes turn on host receptors to fight pathogens

Cell Host Microbe. 2024 May 8;32(5):623-624. doi: 10.1016/j.chom.2024.04.011.

Abstract

Common nutrients in our diet often affect our health through unexpected mechanisms. In a recent issue of Nature, Scott et al. show gut microbes convert dietary tryptophan into metabolites activating intestinal dopamine receptors, which can block attachment of bacterial pathogens to host cells.

MeSH terms

  • Animals
  • Bacteria / metabolism
  • Bacterial Adhesion
  • Dopamine* / metabolism
  • Gastrointestinal Microbiome* / physiology
  • Gastrointestinal Tract / metabolism
  • Gastrointestinal Tract / microbiology
  • Host-Pathogen Interactions
  • Humans
  • Receptors, Dopamine / metabolism
  • Tryptophan / metabolism

Substances

  • Dopamine
  • Receptors, Dopamine
  • Tryptophan