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@ARTICLE{Stuendl:155274,
author = {Stuendl, Anne and Kraus, Tanja and Chatterjee, Madhurima
and Zapke, Björn and Sadowski, Boguslawa and Moebius,
Wiebke and Hobert, Markus A and Deuschle, Christian and
Brockmann, Kathrin and Maetzler, Walter and Mollenhauer,
Brit and Schneider, Anja},
title = {α-{S}ynuclein in {P}lasma-{D}erived {E}xtracellular
{V}esicles {I}s a {P}otential {B}iomarker of {P}arkinson's
{D}isease.},
journal = {Movement disorders},
volume = {36},
number = {11},
issn = {1531-8257},
address = {New York, NY},
publisher = {Wiley},
reportid = {DZNE-2021-00554},
pages = {2508-2518},
year = {2021},
abstract = {Extracellular vesicles are small vesicles that are released
from many cells, including neurons. α-Synuclein has
recently been described in extracellular vesicles derived
from the central nervous system and may contribute to the
spreading of disease pathology in α-synuclein-related
neurodegeneration.We aimed to examine the potential
diagnostic value of α-synuclein in plasma extracellular
vesicles from patients with Parkinson's disease
(PD).Preanalytical variables were studied to establish an
optimized assay for preparation of plasma extracellular
vesicles and detection of extracellular vesicle-derived
α-synuclein. Plasma samples were obtained from 2
independent cohorts. The Tübingen cohort contained 96
patients with PD, 50 patients with dementia with Lewy
bodies, 50 patients with progressive supranuclear palsy
(PSP), and 42 healthy controls; the Kassel cohort included
47 patients with PD, 43 patients with dementia with Lewy
bodies, and 36 controls with secondary parkinsonian
syndromes. Extracellular vesicles were prepared from total
plasma by size exclusion chromatography and quantified by
nanoparticle tracking analysis, α-synuclein content was
measured by an electrochemiluminescence assay.α-Synuclein
concentration in plasma extracellular vesicles provided the
best discrimination between PD, dementia with Lewy bodies,
PSP, and healthy controls, with an area under the curve of
0.804 (PD vs dementia with Lewy bodies), 0.815 (PD vs. PSP),
and 0.769 (PD vs healthy controls) in the Tübingen cohort.
Results were validated in the Kassel cohort.The
concentration of α-synuclein in plasma extracellular
vesicles may serve as a potential diagnostic biomarker for
PD. © 2021 The Authors. Movement Disorders published by
Wiley Periodicals LLC on behalf of International Parkinson
and Movement Disorder Society.},
keywords = {Biomarkers / Extracellular Vesicles: pathology / Humans /
Parkinson Disease: pathology / Supranuclear Palsy,
Progressive / alpha-Synuclein / Parkinson's disease (Other)
/ biomarker (Other) / extracellular vesicles (Other) /
plasma (Other) / α-synuclein (Other)},
cin = {AG Schneider / Biobanking Facility Tübingen / AG Gasser},
ddc = {610},
cid = {I:(DE-2719)1011305 / I:(DE-2719)1240004 /
I:(DE-2719)1210000},
pnm = {353 - Clinical and Health Care Research (POF4-353)},
pid = {G:(DE-HGF)POF4-353},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:34002893},
doi = {10.1002/mds.28639},
url = {https://pub.dzne.de/record/155274},
}