Diet-Host-Microbiota Interactions Shape Aryl Hydrocarbon Receptor Ligand Production to Modulate Intestinal Homeostasis

Huajun Han, Stephen Safe, Arul Jayaraman, Robert S. Chapkin

Research output: Contribution to journalReview articlepeer-review

1 Scopus citations

Abstract

The aryl hydrocarbon receptor (AhR) is a ligand-Activated basic-helix-loop-helix transcription factor that binds structurally diverse ligands and senses cues from environmental toxicants and physiologically relevant dietary/microbiota-derived ligands. The AhR is an ancient conserved protein and is widely expressed across different tissues in vertebrates and invertebrates. AhR signaling mediates a wide range of cellular functions in a ligand-, cell type-, species-, and context-specific manner. Dysregulation of AhR signaling is linked to many developmental defects and chronic diseases. In this review, we discuss the emerging role of AhR signaling in mediating bidirectional host-microbiome interactions. We also consider evidence showing the potential for the dietary/microbial enhancement ofhealth-promoting AhR ligands to improve clinical pathway management in the context of inflammatory bowel diseases and colon tumorigenesis.

Original languageEnglish (US)
Pages (from-to)455-478
Number of pages24
JournalAnnual Review of Nutrition
Volume41
DOIs
StatePublished - 2021

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Nutrition and Dietetics

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