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Histone deacetylase 3 prepares brown adipose tissue for acute thermogenic challenge.

Authors: Emmett, Matthew J  Lim, Hee-Woong  Jager, Jennifer  Richter, Hannah J  Adlanmerini, Marine  Peed, Lindsey C  Briggs, Erika R  Steger, David J  Ma, Tao  Sims, Carrie A  Baur, Joseph A  Pei, Liming  Won, Kyoung-Jae  Seale, Patrick  Gerhart-Hines, Zachary  Lazar, Mitchell A 
Citation: Emmett MJ, etal., Nature. 2017 Jun 22;546(7659):544-548. doi: 10.1038/nature22819. Epub 2017 Jun 14.
Pubmed: (View Article at PubMed) PMID:28614293
DOI: Full-text: DOI:10.1038/nature22819

Brown adipose tissue is a thermogenic organ that dissipates chemical energy as heat to protect animals against hypothermia and to counteract metabolic disease. However, the transcriptional mechanisms that determine the thermogenic capacity of brown adipose tissue before environmental cold are unknown. Here we show that histone deacetylase 3 (HDAC3) is required to activate brown adipose tissue enhancers to ensure thermogenic aptitude. Mice with brown adipose tissue-specific genetic ablation of HDAC3 become severely hypothermic and succumb to acute cold exposure. Uncoupling protein 1 (UCP1) is nearly absent in brown adipose tissue lacking HDAC3, and there is also marked downregulation of mitochondrial oxidative phosphorylation genes resulting in diminished mitochondrial respiration. Remarkably, although HDAC3 acts canonically as a transcriptional corepressor, it functions as a coactivator of oestrogen-related receptor α (ERRα) in brown adipose tissue. HDAC3 coactivation of ERRα is mediated by deacetylation of PGC-1α and is required for the transcription of Ucp1, Ppargc1a (encoding PGC-1α), and oxidative phosphorylation genes. Importantly, HDAC3 promotes the basal transcription of these genes independently of adrenergic stimulation. Thus, HDAC3 uniquely primes Ucp1 and the thermogenic transcriptional program to maintain a critical capacity for thermogenesis in brown adipose tissue that can be rapidly engaged upon exposure to dangerously cold temperature.

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RGD Object Information
RGD ID: 13673816
Created: 2018-06-23
Species: All species
Last Modified: 2018-06-23
Status: ACTIVE



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RGD is funded by grant HL64541 from the National Heart, Lung, and Blood Institute on behalf of the NIH.