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Pàgina inicial > Articles > Articles publicats > Aberrant epigenome in -derived dopaminergic neurons from Parkinson's disease patients |
Data: | 2015 |
Resum: | The epigenomic landscape of Parkinson's disease () remains unknown. We performed a genomewide methylation and a transcriptome studies in induced pluripotent stem cell ()-derived dopaminergic neurons (n) generated by cell reprogramming of somatic skin cells from patients with monogenic 2-associated (L2) or sporadic (), and healthy subjects. We observed extensive methylation changes in n, and of expression, which were common in L2 and . No significant methylation differences were present in parental skin cells, undifferentiated s nor -derived neural cultures not-enriched-in-n. These findings suggest the presence of molecular defects in somatic cells which manifest only upon differentiation into the n cells targeted in . The methylation profile from n, but not from controls, resembled that of neural cultures not-enriched-in-n indicating a failure to fully acquire the epigenetic identity own to healthy n in . The -associated hypermethylation was prominent in gene regulatory regions such as enhancers and was related to the and/or protein downregulation of a network of transcription factors relevant to (1, 3C1, 4A, and 2). Using a patient-specific -based n model, our study provides the first evidence that epigenetic deregulation is associated with monogenic and sporadic PD. |
Ajuts: | Ministerio de Economía y Competitividad FIS2010/21924-C02-02 Agència de Gestió d'Ajuts Universitaris i de Recerca 2009/SGR-14 Instituto de Salud Carlos III SAF2012/33526 Instituto de Salud Carlos III PIE14/00061 Instituto de Salud Carlos III BFU2013/49157-P |
Drets: | Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original. |
Llengua: | Anglès |
Document: | Article ; recerca ; Versió publicada |
Matèria: | Methylation ; Dopaminergic neuron ; Induced pluripotent stem cell ; Parkinson's disease ; Transcription factor ; Chromatin, Epigenetics, Genomics & Functional Genomics ; Neuroscience ; Stem Cells |
Publicat a: | EMBO Molecular Medicine, Vol. 7, Núm. 12 (October 2015) , p. 1529-1546, ISSN 1757-4684 |
18 p, 2.2 MB |