Aryl hydrocarbon receptor ligand production by the gut microbiota is decreased in celiac disease leading to intestinal inflammation
Bruno Lamas, Leticia Hernández-Galán, Heather J. Galipeau, Marco Constante, Alexandra Clarizio, Jennifer Jury, Natália Martins Breyner, Alberto Caminero, Gaston Rueda, Christina L. Hayes, Justin L. McCarville, Miriam Bermudez Brito, Julien Planchais, Nathalie Rolhion, Joseph A. Murray, Philippe Langella, Linda M. P. Loonen, Jerry M. Wells, Přemysl Berčík, Harry Sokol, Elena F. Verdú
Abstract
, or pharmacological stimulation using 6-formylindolo (3,2-b) carbazole (Ficz) decreased immunopathology in NOD/DQ8 mice exposed to gluten. We then determined AhR ligand production by the fecal microbiota and AhR activation in patients with active celiac disease compared to nonceliac control individuals. Patients with active celiac disease demonstrated reduced AhR ligand production and lower intestinal AhR pathway activation. These results highlight gut microbiota-dependent modulation of the AhR pathway in celiac disease and suggest a new therapeutic strategy for treating this disorder.