Transcriptional Regulation of the Interferon Alpha-Inducible Protein-27 Like 2b by the Peroxisome Proliferator-Activated Receptor γ in Fatty Liver Disease

IF 1.3 4区 生物学 Q4 CELL BIOLOGY
Genes to Cells Pub Date : 2025-09-07 DOI:10.1111/gtc.70049
Ai Sakaguchi, Daisuke Aibara, Kimihiko Matsusue
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引用次数: 0

Abstract

Peroxisome proliferator-activated receptor γ (PPARγ) is a nuclear receptor abundantly expressed in the fatty liver of type 2 diabetic ob/ob mice. Herein, we investigated how PPARγ regulates the expression of the interferon alpha-inducible protein 27-like 2b (lfi27l2b) gene in the mouse liver. High expression of lfi27l2b was observed in the fatty liver of ob/ob mice, and the expression was further upregulated by PPARγ ligands; however, liver-specific Pparg knockout ameliorated this increase. Moreover, high lfi27l2b expression was observed in the fatty liver of alcohol-fed mice. Reporter assays indicated that the PPARγ-responsive element (PPRE) is necessary for PPARγ-dependent induction of Ifi27l2b promoter activities. Furthermore, electrophoretic mobility shift assays showed that PPARγ is capable of directly binding the PPRE. Overall, our results indicate that lfi27l2b is a novel PPARγ target in the fatty liver.

过氧化物酶体增殖物激活受体γ对脂肪肝中干扰素α诱导蛋白27样2b的转录调节
过氧化物酶体增殖物激活受体γ (PPARγ)是2型糖尿病ob/ob小鼠脂肪肝中大量表达的核受体。在此,我们研究了PPARγ如何调节小鼠肝脏中干扰素α诱导蛋白27-样2b (lfi27l2b)基因的表达。lfi27l2b在ob/ob小鼠脂肪肝中高表达,并被PPARγ配体进一步上调表达;然而,肝脏特异性Pparg敲除改善了这种增加。此外,在酒精喂养小鼠的脂肪肝中观察到高表达的lfi27l2b。报告分析表明,ppar γ响应元件(PPRE)对于ppar γ依赖性诱导Ifi27l2b启动子活性是必需的。此外,电泳迁移率转移实验表明,PPARγ能够直接结合PPRE。总之,我们的研究结果表明,lfi27l2b是脂肪肝中新的PPARγ靶点。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Genes to Cells
Genes to Cells 生物-细胞生物学
CiteScore
3.40
自引率
0.00%
发文量
71
审稿时长
3 months
期刊介绍: Genes to Cells provides an international forum for the publication of papers describing important aspects of molecular and cellular biology. The journal aims to present papers that provide conceptual advance in the relevant field. Particular emphasis will be placed on work aimed at understanding the basic mechanisms underlying biological events.
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