Hypoxia induces rapid changes to histone methylation and reprograms chromatin
Author(s) -
Michael Batie,
Julianty Frost,
Mark Frost,
James W. Wilson,
Pietá Schofield,
Sónia Rocha
Publication year - 2019
Publication title -
science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 12.556
H-Index - 1186
eISSN - 1095-9203
pISSN - 0036-8075
DOI - 10.1126/science.aau5870
Subject(s) - chromatin , hypoxia (environmental) , histone , biology , hypoxia inducible factors , gene expression , transcription factor , epigenetics , regulation of gene expression , gene , microbiology and biotechnology , genetics , oxygen , chemistry , organic chemistry
Oxygen sensing revisited The cellular response to hypoxia (oxygen deficiency) is a contributing factor in many human diseases. Previous studies examining the way in which hypoxia alters gene expression have focused on oxygen-sensing enzymes that regulate the activity of a transcription factor called hypoxia-inducible factor (see the Perspective by Gallipoli and Huntly). Chakrabortyet al. and Batieet al. now show that hypoxia can also affect gene expression through direct effects on chromatin regulators. Certain histone demethylases, such as KDM6A and KDM5A, were found to be direct sensors of oxygen. In cell-culture models, hypoxia diminished the activity of these enzymes and caused changes in the expression of genes that govern cell fate.Science , this issue p.1217 , p.1222 ; see also p.1148
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