Patient-Specific iPSC-Derived Astrocytes Contribute to Non-Cell-Autonomous Neurodegeneration in Parkinson's Disease.
Astrocytes
/ cytology
Autophagy
/ physiology
Cell Differentiation
/ physiology
Cells, Cultured
Coculture Techniques
/ methods
Dopaminergic Neurons
/ cytology
Humans
Induced Pluripotent Stem Cells
/ cytology
Leucine-Rich Repeat Serine-Threonine Protein Kinase-2
/ metabolism
Mesencephalon
/ cytology
Neuroglia
Parkinson Disease
/ metabolism
Phenotype
alpha-Synuclein
/ metabolism
CRISPR/Cas9
LRRK2
Parkinson's disease
astrocytes
autophagy
disease modeling
iPSC
neurodegeneration
non-cell-autonomous
α-synuclein
Journal
Stem cell reports
ISSN: 2213-6711
Titre abrégé: Stem Cell Reports
Pays: United States
ID NLM: 101611300
Informations de publication
Date de publication:
12 02 2019
12 02 2019
Historique:
received:
07
04
2018
revised:
11
12
2018
accepted:
13
12
2018
pubmed:
15
1
2019
medline:
5
3
2020
entrez:
15
1
2019
Statut:
ppublish
Résumé
Parkinson's disease (PD) is associated with the degeneration of ventral midbrain dopaminergic neurons (vmDAns) and the accumulation of toxic α-synuclein. A non-cell-autonomous contribution, in particular of astrocytes, during PD pathogenesis has been suggested by observational studies, but remains to be experimentally tested. Here, we generated induced pluripotent stem cell-derived astrocytes and neurons from familial mutant LRRK2 G2019S PD patients and healthy individuals. Upon co-culture on top of PD astrocytes, control vmDAns displayed morphological signs of neurodegeneration and abnormal, astrocyte-derived α-synuclein accumulation. Conversely, control astrocytes partially prevented the appearance of disease-related phenotypes in PD vmDAns. We additionally identified dysfunctional chaperone-mediated autophagy (CMA), impaired macroautophagy, and progressive α-synuclein accumulation in PD astrocytes. Finally, chemical enhancement of CMA protected PD astrocytes and vmDAns via the clearance of α-synuclein accumulation. Our findings unveil a crucial non-cell-autonomous contribution of astrocytes during PD pathogenesis, and open the path to exploring novel therapeutic strategies aimed at blocking the pathogenic cross talk between neurons and glial cells.
Identifiants
pubmed: 30639209
pii: S2213-6711(18)30530-7
doi: 10.1016/j.stemcr.2018.12.011
pmc: PMC6372974
pii:
doi:
Substances chimiques
alpha-Synuclein
0
Leucine-Rich Repeat Serine-Threonine Protein Kinase-2
EC 2.7.11.1
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
213-229Subventions
Organisme : NIA NIH HHS
ID : P01 AG031782
Pays : United States
Organisme : NIA NIH HHS
ID : P30 AG038072
Pays : United States
Organisme : NIA NIH HHS
ID : RF1 AG054108
Pays : United States
Organisme : NINDS NIH HHS
ID : U54 NS100717
Pays : United States
Informations de copyright
Copyright © 2018 The Authors. Published by Elsevier Inc. All rights reserved.
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