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@ARTICLE{Stuendl:138377,
author = {Stuendl, Anne and Kunadt, Marcel and Kruse, Niels and
Bartels, Claudia and Moebius, Wiebke and Danzer, Karin M and
Mollenhauer, Brit and Schneider, Anja},
title = {{I}nduction of α-synuclein aggregate formation by {CSF}
exosomes from patients with {P}arkinson's disease and
dementia with {L}ewy bodies.},
journal = {Brain},
volume = {139},
number = {2},
issn = {0006-8950},
address = {Oxford},
publisher = {Oxford Univ. Press},
reportid = {DZNE-2020-04699},
pages = {481-494},
year = {2016},
abstract = {Extracellular α-synuclein has been proposed as a crucial
mechanism for induction of pathological aggregate formation
in previously healthy cells. In vitro, extracellular
α-synuclein is partially associated with exosomal vesicles.
Recently, we have provided evidence that exosomal
α-synuclein is present in the central nervous system in
vivo. We hypothesized that exosomal α-synuclein species
from patients with α-synuclein related neurodegeneration
serve as carriers for interneuronal disease transmission. We
isolated exosomes from cerebrospinal fluid from patients
with Parkinson's disease, dementia with Lewy bodies,
progressive supranuclear palsy as a non-α-synuclein related
disorder that clinically overlaps with Parkinson's disease,
and neurological controls. Cerebrospinal fluid exosome
numbers, α-synuclein protein content of cerebrospinal fluid
exosomes and their potential to induce oligomerization of
α-synuclein were analysed. The quantification of
cerebrospinal fluid exosomal α-synuclein showed distinct
differences between patients with Parkinson's disease and
dementia with Lewy bodies. In addition, exosomal
α-synuclein levels correlated with the severity of
cognitive impairment in cross-sectional samples from
patients with dementia with Lewy bodies. Importantly,
cerebrospinal fluid exosomes derived from Parkinson's
disease and dementia with Lewy bodies induce oligomerization
of α-synuclein in a reporter cell line in a dose-dependent
manner. Our data suggest that cerebrospinal fluid exosomes
from patients with Parkinson's disease and dementia with
Lewy bodies contain a pathogenic species of α-synuclein,
which could initiate oligomerization of soluble α-synuclein
in target cells and confer disease pathology.},
keywords = {Cerebrospinal Fluid: metabolism / Cohort Studies /
Cross-Sectional Studies / Exosomes: metabolism / Female /
Follow-Up Studies / Humans / Lewy Body Disease:
cerebrospinal fluid / Lewy Body Disease: metabolism /
Longitudinal Studies / Male / Parkinson Disease:
cerebrospinal fluid / Parkinson Disease: metabolism /
Protein Aggregates: physiology / alpha-Synuclein:
biosynthesis / alpha-Synuclein: cerebrospinal fluid /
Protein Aggregates (NLM Chemicals) / alpha-Synuclein (NLM
Chemicals)},
cin = {AG Schneider Göttingen},
ddc = {610},
cid = {I:(DE-2719)1440011},
pnm = {353 - Clinical and Health Care Research (POF4-353)},
pid = {G:(DE-HGF)POF4-353},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:26647156},
pmc = {pmc:PMC4805087},
doi = {10.1093/brain/awv346},
url = {https://pub.dzne.de/record/138377},
}