PMID- 17596446 OWN - NLM STAT- MEDLINE DCOM- 20070801 LR - 20220129 IS - 1529-2401 (Electronic) IS - 0270-6474 (Print) IS - 0270-6474 (Linking) VI - 27 IP - 26 DP - 2007 Jun 27 TI - Widespread disruption of repressor element-1 silencing transcription factor/neuron-restrictive silencer factor occupancy at its target genes in Huntington's disease. PG - 6972-83 AB - Huntingtin is a protein that is mutated in Huntington's disease (HD), a dominant inherited neurodegenerative disorder. We previously proposed that, in addition to the gained toxic activity of the mutant protein, selective molecular dysfunctions in HD may represent the consequences of the loss of wild-type protein activity. We first reported that wild-type huntingtin positively affects the transcription of the brain-derived neurotrophic factor (BDNF) gene, a cortically derived survival factor for the striatal neurons that are mainly affected in the disease. Mutation in huntingtin decreases BDNF gene transcription. One mechanism involves the activation of repressor element 1/neuron-restrictive silencer element (RE1/NRSE) located within the BDNF promoter. We now show that increased binding of the RE1 silencing transcription factor/neuron-restrictive silencer factor (REST/NRSF) repressor occurs at multiple genomic RE1/NRSE loci in HD cells, in animal models, and in postmortem brains, resulting in a decrease of RE1/NRSE-mediated gene transcription. The same molecular phenotype is produced in cells and brain tissue depleted of endogenous huntingtin, thereby directly validating the loss-of-function hypothesis of HD. Through a ChIP (chromatin immunoprecipitation)-on-chip approach, we examined occupancy of multiple REST/NRSF target genes in the postmortem HD brain, providing the first example of the application of this technology to neurodegenerative diseases. Finally, we show that attenuation of REST/NRSF binding restores BDNF levels, suggesting that relief of REST/NRSF mediated repression can restore aberrant neuronal gene transcription in HD. FAU - Zuccato, Chiara AU - Zuccato C AD - Department of Pharmacological Sciences and Centre for Stem Cell Research, University of Milan, Via Balzaretti 9, 20133 Milano, Italy. FAU - Belyaev, Nikolai AU - Belyaev N FAU - Conforti, Paola AU - Conforti P FAU - Ooi, Lezanne AU - Ooi L FAU - Tartari, Marzia AU - Tartari M FAU - Papadimou, Evangelia AU - Papadimou E FAU - MacDonald, Marcy AU - MacDonald M FAU - Fossale, Elisa AU - Fossale E FAU - Zeitlin, Scott AU - Zeitlin S FAU - Buckley, Noel AU - Buckley N FAU - Cattaneo, Elena AU - Cattaneo E LA - eng GR - WT_/Wellcome Trust/United Kingdom GR - P50 NS016367/NS/NINDS NIH HHS/United States GR - NS16367/NS/NINDS NIH HHS/United States GR - R01 NS032765/NS/NINDS NIH HHS/United States GR - NS32765/NS/NINDS NIH HHS/United States GR - GGP06250/TI_/Telethon/Italy PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PL - United States TA - J Neurosci JT - The Journal of neuroscience : the official journal of the Society for Neuroscience JID - 8102140 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Htt protein, mouse) RN - 0 (Huntingtin Protein) RN - 0 (Nerve Tissue Proteins) RN - 0 (Nuclear Proteins) RN - 0 (RE1-silencing transcription factor) RN - 0 (Repressor Proteins) RN - 0 (Transcription Factors) SB - IM MH - Animals MH - Brain Chemistry/*genetics MH - Brain-Derived Neurotrophic Factor/metabolism MH - Cell Line, Transformed MH - Corpus Striatum/metabolism/pathology/physiopathology MH - Down-Regulation/genetics MH - Gene Expression Regulation/*genetics MH - Genetic Predisposition to Disease/*genetics MH - Humans MH - Huntingtin Protein MH - Huntington Disease/*genetics MH - Immunoprecipitation/methods MH - Mice MH - Mice, Knockout MH - Mice, Transgenic MH - Nerve Tissue Proteins/genetics MH - Neurons/metabolism/pathology MH - Nuclear Proteins/genetics MH - Protein Binding/genetics MH - Repressor Proteins/*genetics/metabolism MH - Transcription Factors/*genetics/metabolism PMC - PMC6672230 EDAT- 2007/06/29 09:00 MHDA- 2007/08/02 09:00 PMCR- 2007/12/27 CRDT- 2007/06/29 09:00 PHST- 2007/06/29 09:00 [pubmed] PHST- 2007/08/02 09:00 [medline] PHST- 2007/06/29 09:00 [entrez] PHST- 2007/12/27 00:00 [pmc-release] AID - 27/26/6972 [pii] AID - 3230640 [pii] AID - 10.1523/JNEUROSCI.4278-06.2007 [doi] PST - ppublish SO - J Neurosci. 2007 Jun 27;27(26):6972-83. doi: 10.1523/JNEUROSCI.4278-06.2007.