DNA Oxidation as Triggered by H3K9me2 Demethylation Drives Estrogen-Induced Gene Expression

Modifications at the N-terminal tails of nucleosomal histones are required for efficient transcription in vivo. We analyzed how H3 histone methylation and demethylation control expression of estrogen-responsive genes and show that a DNA-bound estrogen receptor directs transcription by participating...

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Veröffentlicht in:Science (American Association for the Advancement of Science) 2008-01, Vol.319 (5860), p.202-206
Hauptverfasser: Perillo, Bruno, Ombra, Maria Neve, Bertoni, Alessandra, Cuozzo, Concetta, Sacchetti, Silvana, Sasso, Annarita, Chiariotti, Lorenzo, Malorni, Antonio, Abbondanza, Ciro, Avvedimento, Enrico V
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container_issue 5860
container_start_page 202
container_title Science (American Association for the Advancement of Science)
container_volume 319
creator Perillo, Bruno
Ombra, Maria Neve
Bertoni, Alessandra
Cuozzo, Concetta
Sacchetti, Silvana
Sasso, Annarita
Chiariotti, Lorenzo
Malorni, Antonio
Abbondanza, Ciro
Avvedimento, Enrico V
description Modifications at the N-terminal tails of nucleosomal histones are required for efficient transcription in vivo. We analyzed how H3 histone methylation and demethylation control expression of estrogen-responsive genes and show that a DNA-bound estrogen receptor directs transcription by participating in bending chromatin to contact the RNA polymerase II recruited to the promoter. This process is driven by receptor-targeted demethylation of H3 lysine 9 at both enhancer and promoter sites and is achieved by activation of resident LSD1 demethylase. Localized demethylation produces hydrogen peroxide, which modifies the surrounding DNA and recruits 8-oxoguanine-DNA glycosylase 1 and topoisomeraseIIβ, triggering chromatin and DNA conformational changes that are essential for estrogen-induced transcription. Our data show a strategy that uses controlled DNA damage and repair to guide productive transcription.
doi_str_mv 10.1126/science.1147674
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subjects Cell Line, Tumor
Cells, Cultured
Chromatin
Chromatin - metabolism
DNA
DNA - metabolism
DNA Damage
DNA Glycosylases - metabolism
DNA Repair
DNA Topoisomerases, Type II - metabolism
DNA-Binding Proteins - metabolism
Enhancer Elements, Genetic
Enzymes
Estradiol - metabolism
Estrogen Receptor alpha - metabolism
Estrogens
Gene expression
Gene Expression Regulation
Genes
Genes, bcl-2
Genetics
Guanine - analogs & derivatives
Guanine - metabolism
Histone Demethylases
Histones
Histones - metabolism
Humans
Hydrogen Peroxide - metabolism
Lysine - metabolism
Methylation
Molecular biology
Nucleic Acid Conformation
Oxidation-Reduction
Oxidoreductases, N-Demethylating - metabolism
Promoter regions
Promoter Regions, Genetic
Receptors
RNA
RNA polymerase
RNA Polymerase II - metabolism
Small interfering RNA
Transcription, Genetic
title DNA Oxidation as Triggered by H3K9me2 Demethylation Drives Estrogen-Induced Gene Expression
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