C-type natriuretic peptide (CNP) in endothelial cells attenuates hepatic fibrosis and inflammation in non-alcoholic steatohepatitis.
Life Sci
; 209: 349-356, 2018 Sep 15.
Article
em En
| MEDLINE
| ID: mdl-30114411
ABSTRACT
AIMS:
Our previous study revealed that mice transgenic for endothelial-cell-specific overexpression of CNP (E-CNP Tg mice) are protected against the increased fat weight, inflammation, and insulin resistance associated with high-fat diet (HFD)-induced obesity. In addition, E-CNP overexpression prevented abnormal lipid profiles and metabolism and blocked inflammation in the livers of HFD-fed mice. Because obesity, dyslipidemia, and insulin resistance increase the risk of various liver diseases, including non-alcoholic steatohepatitis (NASH), we here studied the role of E-CNP overexpression in the livers of mice in which NASH was induced through feeding of either HFD or a choline-deficient defined lamino-acid diet (CDAA). MAINMETHODS:
Wild-type (Wt) and E-CNP Tg mice were fed either a standard diet or HFD for 25â¯weeks or CDAA for 10â¯weeks. We then assessed hepatic and serum biochemistry; measured blood glucose during glucose tolerance test (GTT) and insulin tolerance test (ITT); evaluated hepatic fibrosis and inflammation; and performed hepatic histology and gene expression analysis. KEYFINDINGS:
Serum triglycerides, total cholesterol, non-esterified fatty acids, asparagine transaminase, glucose tolerance, and insulin resistance were ameliorated by CNP overexpression in endothelial cells of HFD-fed E-CNP Tg mice. In addition, hepatic fibrosis and inflammation were decreased in HFD-fed E-CNP Tg mice compared with HFD-fed Wt mice. CDAA-fed E-CNP Tg mice showed improved glycemic control, but liver parameters, fibrosis, and inflammation were remained elevated and equivalent to those in CDAA-fed Wt mice.SIGNIFICANCE:
The overexpression of CNP in endothelial cells has anti-fibrotic and anti-inflammatory effects in liver during HFD-induced NASH in mice.Palavras-chave
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Base de dados:
MEDLINE
Assunto principal:
Deficiência de Colina
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Peptídeo Natriurético Tipo C
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Células Endoteliais
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Dieta Hiperlipídica
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Hepatopatia Gordurosa não Alcoólica
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Inflamação
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Cirrose Hepática
Idioma:
En
Ano de publicação:
2018
Tipo de documento:
Article