Pin1 plays essential roles in NASH development by modulating multiple target proteins

Masa Ki Inoue, Yusuke Nakatsu, Takeshi Yamamotoya, Shun Hasei, Mayu Kanamoto, Miki Naitou, Yasuka Matsunaga, Hideyuki Sakoda, Midori Fujishiro, Hiraku Ono, Akifumi Kushiyama, Tomoichiro Asano

研究成果: ジャーナルへの寄稿総説査読

11 被引用数 (Scopus)

抄録

Pin1 is one of the three known prolyl-isomerase types and its hepatic expression level is markedly enhanced in the obese state. Pin1 plays critical roles in favoring the exacerbation of both lipid accumulation and fibrotic change accompanying inflammation. Indeed, Pin1-deficient mice are highly resistant to non-alcoholic steatohepatitis (NASH) development by either a high-fat diet or methionine-choline-deficient diet feeding. The processes of NASH development can basically be separated into lipid accumulation and subsequent fibrotic change with inflammation. In this review, we outline the molecular mechanisms by which increased Pin1 promotes both of these phases of NASH. The target proteins of Pin1 involved in lipid accumulation include insulin receptor substrate 1 (IRS-1), AMP-activated protein kinase (AMPK) and acetyl CoA carboxylase 1 (ACC1), while the p60 of the NF-kB complex and transforming growth factor β (TGF-β) pathway appear to be involved in the fibrotic process accelerated by Pin1. Interestingly, Pin1 deficiency does not cause abnormalities in liver size, appearance or function. Therefore, we consider the inhibition of increased Pin1 to be a promising approach to treating NASH and preventing hepatic fibrosis.

本文言語英語
論文番号1545
ジャーナルCells
8
12
DOI
出版ステータス出版済み - 12月 2019
外部発表はい

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