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Dipeptidyl peptidase-4 inhibition prevents nonalcoholic steatohepatitis-associated liver fibrosis and tumor development in mice independently of its anti-diabetic effects.

Abstract：

:Nonalcoholic steatohepatitis (NASH) is a hepatic phenotype of the metabolic syndrome, and increases the risk of cirrhosis and hepatocellular carcinoma (HCC). Although increasing evidence points to the therapeutic implications of certain types of anti-diabetic agents in NASH, it remains to be elucidated whether their effects on NASH are independent of their effects on diabetes. Genetically obese melanocortin 4 receptor-deficient (MC4R-KO) mice fed Western diet are a murine model that sequentially develops hepatic steatosis, NASH, and HCC in the presence of obesity and insulin resistance. In this study, we investigated the effect of the dipeptidyl peptidase-4 (DPP-4) inhibitor anagliptin on NASH and HCC development in MC4R-KO mice. Anagliptin treatment effectively prevented inflammation, fibrosis, and carcinogenesis in the liver of MC4R-KO mice. Interestingly, anagliptin only marginally affected body weight, systemic glucose and lipid metabolism, and hepatic steatosis. Histological data and gene expression analysis suggest that anagliptin treatment targets macrophage activation in the liver during the progression from simple steatosis to NASH. As a molecular mechanism underlying anagliptin action, we showed that glucagon-like peptide-1 suppressed proinflammatory and profibrotic phenotypes of macrophages in vitro. This study highlights the glucose metabolism-independent effects of anagliptin on NASH and HCC development.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Kawakubo M,Tanaka M,Ochi K,Watanabe A,Saka-Tanaka M,Kanamori Y,Yoshioka N,Yamashita S,Goto M,Itoh M,Shirakawa I,Kanai S,Suzuki H,Sawada M,Ito A,Ishigami M,Fujishiro M,Arima H,Ogawa Y,Suganami T

doi

10.1038/s41598-020-57935-6

subject

Has Abstract

pub_date

2020-01-22 00:00:00

pages

983

issue

1

issn

2045-2322

pii

10.1038/s41598-020-57935-6

journal_volume

10

pub_type

杂志文章

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