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Transcriptional Regulation of the Huntingtin Gene

Huntington’s disease (HD) is an autosomal dominant neurodegenerative disorder caused by a CAG trinucleotide expansion in the HTT gene, which encodes for an abnormal polyglutamine tract in the huntingtin protein (HTT). This review examines the known mechanisms of HTT gene regulation. We discuss HTT e...

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Detalles Bibliográficos
Autores principales: Thomson, Sarah B., Leavitt, Blair R.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: IOS Press 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6294578/
https://www.ncbi.nlm.nih.gov/pubmed/30452421
http://dx.doi.org/10.3233/JHD-180331
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author Thomson, Sarah B.
Leavitt, Blair R.
author_facet Thomson, Sarah B.
Leavitt, Blair R.
author_sort Thomson, Sarah B.
collection PubMed
description Huntington’s disease (HD) is an autosomal dominant neurodegenerative disorder caused by a CAG trinucleotide expansion in the HTT gene, which encodes for an abnormal polyglutamine tract in the huntingtin protein (HTT). This review examines the known mechanisms of HTT gene regulation. We discuss HTT expression patterns, features of the HTT promoter, regulatory regions of the HTT promoter with functional significance, and HTT regulators located outside of the proximal promoter region. The factors that influence HTT expression in the brain and the mechanisms of HTT transcriptional regulation are currently poorly understood, despite continuing research. Expanding knowledge of HTT regulation will inform future studies investigating HTT function. Improving understanding of HTT expression and control may also uncover novel therapeutic approaches for HD through the development of methods to modulate mHTT levels.
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spelling pubmed-62945782018-12-18 Transcriptional Regulation of the Huntingtin Gene Thomson, Sarah B. Leavitt, Blair R. J Huntingtons Dis Review Huntington’s disease (HD) is an autosomal dominant neurodegenerative disorder caused by a CAG trinucleotide expansion in the HTT gene, which encodes for an abnormal polyglutamine tract in the huntingtin protein (HTT). This review examines the known mechanisms of HTT gene regulation. We discuss HTT expression patterns, features of the HTT promoter, regulatory regions of the HTT promoter with functional significance, and HTT regulators located outside of the proximal promoter region. The factors that influence HTT expression in the brain and the mechanisms of HTT transcriptional regulation are currently poorly understood, despite continuing research. Expanding knowledge of HTT regulation will inform future studies investigating HTT function. Improving understanding of HTT expression and control may also uncover novel therapeutic approaches for HD through the development of methods to modulate mHTT levels. IOS Press 2018-11-24 /pmc/articles/PMC6294578/ /pubmed/30452421 http://dx.doi.org/10.3233/JHD-180331 Text en © 2018 – IOS Press and the authors. All rights reserved https://creativecommons.org/licenses/by-nc/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial (CC BY-NC 4.0) License (https://creativecommons.org/licenses/by-nc/4.0/) , which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Review
Thomson, Sarah B.
Leavitt, Blair R.
Transcriptional Regulation of the Huntingtin Gene
title Transcriptional Regulation of the Huntingtin Gene
title_full Transcriptional Regulation of the Huntingtin Gene
title_fullStr Transcriptional Regulation of the Huntingtin Gene
title_full_unstemmed Transcriptional Regulation of the Huntingtin Gene
title_short Transcriptional Regulation of the Huntingtin Gene
title_sort transcriptional regulation of the huntingtin gene
topic Review
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6294578/
https://www.ncbi.nlm.nih.gov/pubmed/30452421
http://dx.doi.org/10.3233/JHD-180331
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