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Acute TNF-induced repression of cell identity genes is mediated by NFκB-directed redistribution of cofactors from super-enhancers

The proinflammatory cytokine tumor necrosis factor (TNF) plays a central role in low-grade adipose tissue inflammation and development of insulin resistance during obesity. In this context, nuclear factor κ-light-chain-enhancer of activated B cells (NFκB) is directly involved and required for the ac...

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Autores principales: Schmidt, Søren Fisker, Larsen, Bjørk Ditlev, Loft, Anne, Nielsen, Ronni, Madsen, Jesper Grud Skat, Mandrup, Susanne
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Cold Spring Harbor Laboratory Press 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4561488/
https://www.ncbi.nlm.nih.gov/pubmed/26113076
http://dx.doi.org/10.1101/gr.188300.114
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author Schmidt, Søren Fisker
Larsen, Bjørk Ditlev
Loft, Anne
Nielsen, Ronni
Madsen, Jesper Grud Skat
Mandrup, Susanne
author_facet Schmidt, Søren Fisker
Larsen, Bjørk Ditlev
Loft, Anne
Nielsen, Ronni
Madsen, Jesper Grud Skat
Mandrup, Susanne
author_sort Schmidt, Søren Fisker
collection PubMed
description The proinflammatory cytokine tumor necrosis factor (TNF) plays a central role in low-grade adipose tissue inflammation and development of insulin resistance during obesity. In this context, nuclear factor κ-light-chain-enhancer of activated B cells (NFκB) is directly involved and required for the acute activation of the inflammatory gene program. Here, we show that the major transactivating subunit of NFκB, v-rel avian reticuloendotheliosis viral oncogene homolog A (RELA), is also required for acute TNF-induced suppression of adipocyte genes. Notably, this repression does not involve RELA binding to the associated enhancers but rather loss of cofactors and enhancer RNA (eRNA) selectively from high-occupancy sites within super-enhancers. Based on these data, we have developed models that, with high accuracy, predict which enhancers and genes are repressed by TNF in adipocytes. We show that these models are applicable to other cell types where TNF represses genes associated with super-enhancers in a highly cell-type–specific manner. Our results propose a novel paradigm for NFκB-mediated repression, whereby NFκB selectively redistributes cofactors from high-occupancy enhancers, thereby specifically repressing super-enhancer-associated cell identity genes.
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spelling pubmed-45614882016-03-01 Acute TNF-induced repression of cell identity genes is mediated by NFκB-directed redistribution of cofactors from super-enhancers Schmidt, Søren Fisker Larsen, Bjørk Ditlev Loft, Anne Nielsen, Ronni Madsen, Jesper Grud Skat Mandrup, Susanne Genome Res Research The proinflammatory cytokine tumor necrosis factor (TNF) plays a central role in low-grade adipose tissue inflammation and development of insulin resistance during obesity. In this context, nuclear factor κ-light-chain-enhancer of activated B cells (NFκB) is directly involved and required for the acute activation of the inflammatory gene program. Here, we show that the major transactivating subunit of NFκB, v-rel avian reticuloendotheliosis viral oncogene homolog A (RELA), is also required for acute TNF-induced suppression of adipocyte genes. Notably, this repression does not involve RELA binding to the associated enhancers but rather loss of cofactors and enhancer RNA (eRNA) selectively from high-occupancy sites within super-enhancers. Based on these data, we have developed models that, with high accuracy, predict which enhancers and genes are repressed by TNF in adipocytes. We show that these models are applicable to other cell types where TNF represses genes associated with super-enhancers in a highly cell-type–specific manner. Our results propose a novel paradigm for NFκB-mediated repression, whereby NFκB selectively redistributes cofactors from high-occupancy enhancers, thereby specifically repressing super-enhancer-associated cell identity genes. Cold Spring Harbor Laboratory Press 2015-09 /pmc/articles/PMC4561488/ /pubmed/26113076 http://dx.doi.org/10.1101/gr.188300.114 Text en © 2015 Schmidt et al.; Published by Cold Spring Harbor Laboratory Press http://creativecommons.org/licenses/by-nc/4.0/ This article is distributed exclusively by Cold Spring Harbor Laboratory Press for the first six months after the full-issue publication date (see http://genome.cshlp.org/site/misc/terms.xhtml). After six months, it is available under a Creative Commons License (Attribution-NonCommercial 4.0 International), as described at http://creativecommons.org/licenses/by-nc/4.0/.
spellingShingle Research
Schmidt, Søren Fisker
Larsen, Bjørk Ditlev
Loft, Anne
Nielsen, Ronni
Madsen, Jesper Grud Skat
Mandrup, Susanne
Acute TNF-induced repression of cell identity genes is mediated by NFκB-directed redistribution of cofactors from super-enhancers
title Acute TNF-induced repression of cell identity genes is mediated by NFκB-directed redistribution of cofactors from super-enhancers
title_full Acute TNF-induced repression of cell identity genes is mediated by NFκB-directed redistribution of cofactors from super-enhancers
title_fullStr Acute TNF-induced repression of cell identity genes is mediated by NFκB-directed redistribution of cofactors from super-enhancers
title_full_unstemmed Acute TNF-induced repression of cell identity genes is mediated by NFκB-directed redistribution of cofactors from super-enhancers
title_short Acute TNF-induced repression of cell identity genes is mediated by NFκB-directed redistribution of cofactors from super-enhancers
title_sort acute tnf-induced repression of cell identity genes is mediated by nfκb-directed redistribution of cofactors from super-enhancers
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4561488/
https://www.ncbi.nlm.nih.gov/pubmed/26113076
http://dx.doi.org/10.1101/gr.188300.114
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