Abstract
Prohibitin 1 (PHB1) is a mitochondrial chaperone protein important for maximal activity of the electron transport chain. PHB1 deficiency in intestinal epithelial cells (IECs) or specifically in Paneth cells (PCs) induces epithelial mitochondrial dysfunction, PC defects, gut microbiota dysbiosis, and spontaneous ileitis in mice by 20 weeks-of-age. Dysbiotic gut microbiota has been implicated in inflammatory bowel diseases and is associated with the decreased abundance of short chain fatty acids (SCFAs; acetate, propionate, and butyrate)-producing bacteria. SCFAs play a significant role in reducing intestinal inflammation and epithelial barrier dysfunction. We tested the hypothesis that luminal SCFA levels were decreased in mice with PHB1 deficiency and that supplementation of SCFAs will ameliorate intestinal inflammation during mitochondrial dysfunction driven by loss of PHB1.
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