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A microRNA-based gene dysregulation pathway in Huntington's disease
- Source :
- Neurobiology of Disease, Vol 29, Iss 3, Pp 438-445 (2008)
- Publication Year :
- 2008
- Publisher :
- Elsevier, 2008.
-
Abstract
- Huntington's disease (HD) is a dominantly-inherited neurodegenerative disorder which is incurable and ultimately fatal. HD is characterised by widespread mRNA dysregulation, particularly in neurons of the forebrain, by mechanisms which are not fully understood. Such dysregulation has been demonstrated to result, in part, from aberrant nuclear localisation of the transcriptional repressor, REST. Here, we show that expression of a number of neuronal-specific microRNAs is also dysregulated in HD tissues, probably as a result of increased repression by REST. This phenomenon is observed in both murine models of HD and in the brains of human HD sufferers. MicroRNA loss is reflected in increased levels of a number of target messenger RNAs. These data are the first to demonstrate a role for microRNAs in HD, and indicate that the molecular aetiology of HD is reflected in a loss of neuronal identity, caused in part by dysregulation of both transcriptional and post-transcriptional mechanisms.
- Subjects :
- Transgene
Mice, Transgenic
Biology
lcsh:RC321-571
Mice
Huntington's disease
microRNA
medicine
Animals
Humans
Neurodegeneration
Psychological repression
Gene
lcsh:Neurosciences. Biological psychiatry. Neuropsychiatry
Cells, Cultured
miRNA
Messenger RNA
REST
Brain
medicine.disease
Cell biology
Repressor Proteins
MicroRNAs
Huntington Disease
Neurology
Gene Targeting
Forebrain
Neuroscience
Signal Transduction
Transcription Factors
Subjects
Details
- Language :
- English
- Volume :
- 29
- Issue :
- 3
- Database :
- OpenAIRE
- Journal :
- Neurobiology of Disease
- Accession number :
- edsair.doi.dedup.....ff122bbad2d619332c4091f7eb41f3aa