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β-Adrenergic Signaling Regulates a Concerted Thermogenic Response in Brown Adipose Tissue and White Adipose Tissue Juro Sakai 1,2 1Research Center for Advanced Science and Technology, the University of Tokyo 2Department of Molecular Metabolism Physiology, Tohoku University Graduate School of Medicine Keyword: シグナル感知型エピゲノム因子 , 環境ストレス , 急性応答と慢性適応 , ベージュ脂肪細胞 , 褐色脂肪細胞 , signal sensing epigenetic modifier , environmental stress , acute response and chronic adaptation , beige adipocyte and brown adipocyte pp.151-158
Published Date 2022/2/1
DOI https://doi.org/10.11477/mf.1416202000
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Abstract

Brown adipose tissue (BAT) is important for thermoregulation via uncoupling of oxidative phosphorylation. In addition to BAT-driven thermogenesis, mammals use induced browning of subcutaneous white adipose tissue (scWAT) as a mechanism to cope with chronic cold stress. Under acute cold stress in mammals, JMJD1A, a histone H3 lysine 9 (H3K9) demethylase, upregulates thermogenic genes via β-adrenergic signaling in BAT through higher-order chromatin structural changes that occur independent of histone demethylase activity. Following exposure to chronic cold stress, scWAT browning occurs via a two-step process that requires both β-adrenergic-dependent phosphorylation of S265 and JMJD1A-induced demethylation of H3K9me2.


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電子版ISSN 1344-8129 印刷版ISSN 1881-6096 医学書院

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