Metabolite-sensing receptors GPR43 and GPR109A facilitate dietary fibre-induced gut homeostasis through regulation of the inflammasome
- PMID: 25828455
- DOI: 10.1038/ncomms7734
Metabolite-sensing receptors GPR43 and GPR109A facilitate dietary fibre-induced gut homeostasis through regulation of the inflammasome
Abstract
Diet and the gut microbiota may underpin numerous human diseases. A major metabolic product of commensal bacteria are short-chain fatty acids (SCFAs) that derive from fermentation of dietary fibre. Here we show that diets deficient or low in fibre exacerbate colitis development, while very high intake of dietary fibre or the SCFA acetate protects against colitis. SCFAs binding to the 'metabolite-sensing' receptors GPR43 and GPR109A in non-haematopoietic cells mediate these protective effects. The inflammasome pathway has hitherto been reported as a principal pathway promoting gut epithelial integrity. SCFAs binding to GPR43 on colonic epithelial cells stimulates K(+) efflux and hyperpolarization, which lead to NLRP3 inflammasome activation. Dietary fibre also shapes gut bacterial ecology, resulting in bacterial species that are more effective for inflammasome activation. SCFAs and metabolite receptors thus explain health benefits of dietary fibre, and how metabolite signals feed through to a major pathway for gut homeostasis.
Comment in
-
An Intestinal Inflammasome - The ILC3-Cytokine Tango.Trends Mol Med. 2016 Apr;22(4):269-271. doi: 10.1016/j.molmed.2016.02.008. Epub 2016 Mar 7. Trends Mol Med. 2016. PMID: 26965960
Similar articles
-
Benefits of short-chain fatty acids and their receptors in inflammation and carcinogenesis.Pharmacol Ther. 2016 Aug;164:144-51. doi: 10.1016/j.pharmthera.2016.04.007. Epub 2016 Apr 23. Pharmacol Ther. 2016. PMID: 27113407 Free PMC article. Review.
-
An Intestinal Inflammasome - The ILC3-Cytokine Tango.Trends Mol Med. 2016 Apr;22(4):269-271. doi: 10.1016/j.molmed.2016.02.008. Epub 2016 Mar 7. Trends Mol Med. 2016. PMID: 26965960
-
A major mechanism for immunomodulation: Dietary fibres and acid metabolites.Semin Immunol. 2023 Mar;66:101737. doi: 10.1016/j.smim.2023.101737. Epub 2023 Feb 27. Semin Immunol. 2023. PMID: 36857894 Review.
-
Dietary Fiber Protects against Diabetic Nephropathy through Short-Chain Fatty Acid-Mediated Activation of G Protein-Coupled Receptors GPR43 and GPR109A.J Am Soc Nephrol. 2020 Jun;31(6):1267-1281. doi: 10.1681/ASN.2019101029. Epub 2020 May 1. J Am Soc Nephrol. 2020. PMID: 32358041 Free PMC article.
-
Deficiency of Prebiotic Fiber and Insufficient Signaling Through Gut Metabolite-Sensing Receptors Leads to Cardiovascular Disease.Circulation. 2020 Apr 28;141(17):1393-1403. doi: 10.1161/CIRCULATIONAHA.119.043081. Epub 2020 Feb 25. Circulation. 2020. PMID: 32093510
Cited by
-
Effect of Yuzu (Citrus junos) Seed Limonoids and Spermine on Intestinal Microbiota and Hypothalamic Tissue in the Sandhoff Disease Mouse Model.Med Sci (Basel). 2021 Mar 11;9(1):17. doi: 10.3390/medsci9010017. Med Sci (Basel). 2021. PMID: 33799734 Free PMC article.
-
The metabolic role of the gut microbiota in health and rheumatic disease: mechanisms and interventions.Nat Rev Rheumatol. 2016 Aug;12(8):446-55. doi: 10.1038/nrrheum.2016.68. Epub 2016 Jun 3. Nat Rev Rheumatol. 2016. PMID: 27256713 Review.
-
An efficient system for intestinal on-site butyrate production using novel microbiome-derived esterases.J Biol Eng. 2021 Mar 6;15(1):9. doi: 10.1186/s13036-021-00259-4. J Biol Eng. 2021. PMID: 33676548 Free PMC article.
-
Distinct common signatures of gut microbiota associated with damp-heat syndrome in patients with different chronic liver diseases.Front Pharmacol. 2022 Nov 17;13:1027628. doi: 10.3389/fphar.2022.1027628. eCollection 2022. Front Pharmacol. 2022. PMID: 36467028 Free PMC article.
-
MAFLD and Celiac Disease in Children.Int J Mol Sci. 2023 Jan 16;24(2):1764. doi: 10.3390/ijms24021764. Int J Mol Sci. 2023. PMID: 36675276 Free PMC article. Review.
Publication types
MeSH terms
Substances
LinkOut - more resources
Full Text Sources
Other Literature Sources
Medical
Molecular Biology Databases