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- W2294582511 abstract "Peroxisome proliferator-activated receptor-γ coactivator 1-α (PGC1α) is the primary regulator of mitochondrial biogenesis and was recently found to be highly expressed within the intestinal epithelium. PGC1α is decreased in the intestinal epithelium of patients with inflammatory bowel disease, but its role in pathogenesis is uncertain. We now hypothesize that PGC1α protects against the development of colitis and helps to maintain the integrity of the intestinal barrier. We selectively deleted PGC1α from the intestinal epithelium of mice by breeding a PGC1α(loxP/loxP) mouse with a villin-cre mouse. Their progeny (PGC1α(ΔIEC) mice) were subjected to 2% dextran sodium sulfate (DSS) colitis for 7 days. The SIRT1 agonist SRT1720 was used to enhance PGC1α activation in wild-type mice during DSS exposure. Mice lacking PGC1α within the intestinal epithelium were more susceptible to DSS colitis than their wild-type littermates. Pharmacologic activation of PGC1α successfully ameliorated disease and restored mitochondrial integrity. These findings suggest that a depletion of PGC1α in the intestinal epithelium contributes to inflammatory changes through a failure of mitochondrial structure and function as well as a breakdown of the intestinal barrier, which leads to increased bacterial translocation. PGC1α induction helps to maintain mitochondrial integrity, enhance intestinal barrier function, and decrease inflammation." @default.
- W2294582511 created "2016-06-24" @default.
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- W2294582511 date "2016-05-01" @default.
- W2294582511 modified "2023-10-11" @default.
- W2294582511 title "Peroxisome Proliferator-activated Receptor-γ Coactivator 1-α (PGC1α) Protects against Experimental Murine Colitis" @default.
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- W2294582511 doi "https://doi.org/10.1074/jbc.m115.688812" @default.
- W2294582511 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/4858969" @default.
- W2294582511 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/26969166" @default.
- W2294582511 hasPublicationYear "2016" @default.
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