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REST is a hypoxia-responsive transcriptional repressor

  • Miguel A.S. Cavadas
  • , Marion Mesnieres
  • , Bianca Crifo
  • , Mario C. Manresa
  • , Andrew C. Selfridge
  • , Ciara E. Keogh
  • , Zsolt Fabian
  • , Carsten C. Scholz
  • , Karen A. Nolan
  • , Liliane M.A. Rocha
  • , Murtaza M. Tambuwala
  • , Stuart Brown
  • , Anita Wdowicz
  • , Danielle Corbett
  • , Keith J. Murphy
  • , Catherine Godson
  • , Eoin P. Cummins
  • , Cormac T. Taylor
  • , Alex Cheong*
  • *Corresponding author for this work
    • Universität Zürich
    • Universidade de Lisboa
    • University of Ulster
    • New York University School of Medicine
    • University College Dublin
    • Instituto Gulbenkian de Ciência

    Research output: Contribution to journalArticlepeer-review

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    Abstract

    Cellular exposure to hypoxia results in altered gene expression in a range of physiologic and pathophysiologic states. Discrete cohorts of genes can be either up- or down-regulated in response to hypoxia. While the Hypoxia-Inducible Factor (HIF) is the primary driver of hypoxia-induced adaptive gene expression, less is known about the signalling mechanisms regulating hypoxiadependent
    gene repression. Using RNA-seq, we demonstrate that equivalent numbers of genes are induced and repressed in human embryonic kidney (HEK293) cells. We demonstrate that nuclear localization of the Repressor Element 1-Silencing Transcription factor (REST) is induced in hypoxia and that REST is responsible for regulating approximately 20% of the hypoxia-repressed genes. Using chromatin immunoprecipitation assays we demonstrate that REST-dependent gene repression is at least in part mediated by direct binding to the promoters of target genes. Based on these data, we propose that REST is a key mediator of gene repression in hypoxia.
    Original languageEnglish
    Article number31355
    Number of pages13
    JournalScientific Reports
    Volume6
    Early online date17 Aug 2016
    DOIs
    Publication statusPublished - 17 Aug 2016

    Bibliographical note

    © The Author(s) 2016. This work is licensed under a Creative Commons Attribution 4.0 International License. The imageor other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

    Keywords

    • hypoxia
    • repressor
    • REST
    • transcription

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