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2020 Fiscal Year Final Research Report

Epigenetic regulation in simple fatty liver induced by dietary factors

Research Project

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Project/Area Number 18K02237
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 08030:Family and consumer sciences, and culture and living-related
Research InstitutionGifu University

Principal Investigator

Shimada Masaya  岐阜大学, 応用生物科学部, 准教授 (10576755)

Project Period (FY) 2018-04-01 – 2021-03-31
Keywordsフルクトース / 単純性脂肪肝 / 脂肪合成系遺伝子 / プロモーター / ChREBP / アセチル化ヒストン
Outline of Final Research Achievements

We investigated epigenetic regulation, especially histone acetylation on lipogenic genes in fatty liver induced by a dietary factor, fructose. Expression of lipogenic genes (Pklr, Acly, Acaca, Fasn, Elovl6, Scd1) was induced in simple fatty liver of rats fed a high-fructose diet. In addition, the high-fructose enhanced acetylation of histones H3 and H4 as well as binding of a lipogenic transcription factor ChREBP, not SREBP-1, at the Elovl6 and Scd1 gene promoters.

Free Research Field

食品栄養学

Academic Significance and Societal Importance of the Research Achievements

日々の食生活で摂取し得るフルクトースは,肝臓において糖から脂肪への変換を調節する転写因子ChREBPおよびヒストンアセチル化の活性化を介して脂肪合成系遺伝子の発現を上方調節することが示唆された。今後これらの因子を抑制するような食生活を探索することが脂肪肝を含めた代謝性疾患を予防に重要である。

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Published: 2022-01-27  

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