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Hepatocyte-derived DPP4 regulates portal GLP-1 bioactivity, glucose production and its absence alters liver disease progression

ABSTRACT: This SuperSeries is composed of the SubSeries listed below.

ORGANISM(S): Mus musculus

PROVIDER: GSE218767 | GEO | 2023/01/31

REPOSITORIES: GEO

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Hepatocyte-derived DPP4 regulates portal GLP-1 bioactivity, glucose production and its absence alters liver disease progression (LIVER)

Project description:Elevated circulating dipeptidyl-peptidase 4 (DPP4) is a biomarker for liver disease, but its involvement in gluconeogenesis and metabolic associated fatty liver disease (MAFLD) progression remains unclear. Here we identified that DPP4 in hepatocytes but not Tie2+ endothelial cells regulates the local bioactivity of incretin hormones and gluconeogenesis. However, the complete absence of DPP4 (Dpp4-/-) in aged mice with metabolic syndrome accelerates liver fibrosis without altering dyslipidemia and steatosis. Analysis of transcripts from the livers of Dpp4-/- mice displayed enrichment for inflammasome, p53, and senescence programs compared to littermate controls. High-fat high-cholesterol (HFHC)-feeding decreased Dpp4 expression in F4/80+ cells, with only minor changes in immune signaling.

2023-01-31 | GSE218765 | GEO

Hepatocyte-derived DPP4 regulates portal GLP-1 bioactivity, glucose production and its absence alters liver disease progression (F480+ CELLS)

2023-01-31 | GSE218766 | GEO