The gut microbiota-tryptophan metabolism-immune axis in inflammatory bowel disease: Mechanisms and therapeutic prospects
ABSTRACT The gut microbiota–tryptophan (TRP) metabolism–immune axis is one of the core pathogenic mechanisms in inflammatory bowel disease (IBD). Physiologically, gut microbes convert dietary TRP into bioactive metabolites that regulate intestinal immune balance and barrier function via AHR. In IBD, this axis enters a...