Cited by 35Parkinson's Disease Mechanisms and TreatmentsNeuroinflammation and Neurodegeneration MechanismsNuclear Receptors and Signaling

Age‐related motor dysfunction and neuropathology in a transgenic mouse model of multiple system atrophy

Fernagut, P.O., Meissner, W.G., Biran, M., Fantin, M., Bassil, F., Franconi, J.M., Tison, F.·2014·Synapse

Abstract

Multiple system atrophy (MSA) is a neurodegenerative disorder characterized by a progressive degeneration of the striatonigral, olivo‐ponto‐cerebellar, and autonomic systems. Glial cytoplasmic inclusions (GCIs) containing alpha‐synuclein represent the hallmark of MSA and are recapitulated in mice expressing alpha‐synuclein in oligodendrocytes. To assess if oligodendroglial expression of human wild‐type alpha‐synuclein in mice (proteolipid promoter, PLP‐SYN) could be associated with age‐related deficits, PLP‐SYN and wild‐type mice were assessed for motor function, brain morphometry, striatal levels of dopamine and metabolites, dopaminergic loss, and distribution of GCIs. PLP‐SYN displayed age‐related impairments on a beam‐traversing task. MRI revealed a significantly smaller brain volume in PLP‐SYN mice at 12 months, which further decreased at 18 months together with increased volume of ventricles and cortical atrophy. The distribution of GCIs was reminiscent of MSA with a high burden in the basal ganglia. Mild dopaminergic cell loss was associated with decreased dopamine turnover at 18 months. These data indicate that PLP‐SYN mice may recapitulate some of the progressive features of MSA and deliver endpoints for the evaluation of therapeutic strategies. Synapse 68:98–106, 2014. © 2013 Wiley Periodicals, Inc.

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Crossref · 10.1002/syn.21719

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Authors
Fernagut, P. O., Meissner, W. G., Biran, M., Fantin, M., Bassil, F., Franconi, J. M., & Tison, F.
Affiliations
  • Centre National de la Recherche Scientifique (FR)
  • Université de Bordeaux (FR)
Corresponding author
Fernagut, P.O.
Venue
Synapse
Publisher
Wiley
Published
2013-11-15
Volume
68
Issue
3
Pages
98-106
ISSN
  • 0887-4476 (ISSN-L)
  • 1098-2396
OpenAlex
W2144139165
Cited by
35
References
32
Citations by year
2025: 1 · 2024: 1 · 2022: 2 · 2021: 5 · 2020: 6 · 2019: 2 · 2018: 7 · 2017: 5 · 2016: 5
FWCI
1.06
Type
journal article
Language
en
Open access
closed
Locations
  • Synapse (publishedVersion)
  • PubMed (publishedVersion)
Funders
Centre National de la Recherche Scientifique
Topics
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Nuclear Receptors and Signaling
Keywords
multiple system atrophy, alpha-synuclein, glial cytoplasmic inclusions, dopaminergic neuron loss, dopamine turnover, striatum, brain atrophy, ventriculomegaly, basal ganglia, neurodegeneration, mouse model
MeSH terms
Age Factors, Animals, Atrophy, Brain, Cerebral Ventricles, Corpus Striatum, Dopamine, Humans, Magnetic Resonance Imaging, Male, Mice, Inbred C57BL, Mice, Transgenic, Motor Activity, Movement Disorders, Neuroglia, Organ Size, Cell Death, Multiple System Atrophy, Mice, alpha-Synuclein

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