Mitochondrial Dysregulation and Impaired Autophagy in iPSC-Derived Dopaminergic Neurons of Multiple System Atrophy.
Stem Cell Reports 2018;
11:1185-1198. [PMID:
30344007 PMCID:
PMC6234905 DOI:
10.1016/j.stemcr.2018.09.007]
[Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 09/18/2018] [Accepted: 09/19/2018] [Indexed: 12/27/2022] Open
Abstract
Multiple system atrophy (MSA) is a progressive neurodegenerative disease that affects several areas of the CNS, whose pathogenesis is still widely unclear and for which an effective treatment is lacking. We have generated induced pluripotent stem cell-derived dopaminergic neurons from four MSA patients and four healthy controls and from two monozygotic twins discordant for the disease. In this model, we have demonstrated an aberrant autophagic flow and a mitochondrial dysregulation involving respiratory chain activity, mitochondrial content, and CoQ10 biosynthesis. These defective mechanisms may contribute to the onset of the disease, representing potential therapeutic targets.
An iPSC-based neuronal model of MSA is described
Mitochondria are dysfunctional in MSA neurons
Autophagic machinery is impaired in MSA neurons
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