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@ARTICLE{VillarPiqu:820731,
author = {Villar-Piqué, Anna and Lopes da Fonseca, Tomás and
Sant’Anna, Ricardo and Szegö, Éva Mónika and
Fonseca-Ornelas, Luis and Pinho, Raquel and Carija, Anita
and Gerhardt, Ellen and Masaracchia, Caterina and Abad
Gonzalez, Enrique and Rossetti, Giulia and Carloni, Paolo
and Fernández, Claudio O. and Foguel, Debora and Milosevic,
Ira and Zweckstetter, Markus and Ventura, Salvador and
Outeiro, Tiago Fleming},
title = {{E}nvironmental and genetic factors support the
dissociation between α-synuclein aggregation and toxicity},
journal = {Proceedings of the National Academy of Sciences of the
United States of America},
volume = {113},
number = {42},
issn = {1091-6490},
address = {Washington, DC},
publisher = {National Acad. of Sciences},
reportid = {FZJ-2016-05999},
pages = {E6506 - E6515},
year = {2016},
abstract = {Synucleinopathies are a group of progressive disorders
characterized by the abnormal aggregation and accumulation
of α-synuclein (aSyn), an abundant neuronal protein that
can adopt different conformations and biological properties.
Recently, aSyn pathology was shown to spread between neurons
in a prion-like manner. Proteins like aSyn that exhibit
self-propagating capacity appear to be able to adopt
different stable conformational states, known as protein
strains, which can be modulated both by environmental and by
protein-intrinsic factors. Here, we analyzed these factors
and found that the unique combination of the
neurodegeneration-related metal copper and the pathological
H50Q aSyn mutation induces a significant alteration in the
aggregation properties of aSyn. We compared the aggregation
of WT and H50Q aSyn with and without copper, and assessed
the effects of the resultant protein species when applied to
primary neuronal cultures. The presence of copper induces
the formation of structurally different and less-damaging
aSyn aggregates. Interestingly, these aggregates exhibit a
stronger capacity to induce aSyn inclusion formation in
recipient cells, which demonstrates that the structural
features of aSyn species determine their effect in neuronal
cells and supports a lack of correlation between toxicity
and inclusion formation. In total, our study provides strong
support in favor of the hypothesis that protein aggregation
is not a primary cause of cytotoxicity.},
cin = {IAS-5 / INM-9 / GRS Jülich ; German Research School for
Simulation Sciences / JSC},
ddc = {000},
cid = {I:(DE-Juel1)IAS-5-20120330 / I:(DE-Juel1)INM-9-20140121 /
I:(DE-Juel1)GRS-20100316 / I:(DE-Juel1)JSC-20090406},
pnm = {572 - (Dys-)function and Plasticity (POF3-572) / 511 -
Computational Science and Mathematical Methods (POF3-511)},
pid = {G:(DE-HGF)POF3-572 / G:(DE-HGF)POF3-511},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000385610400024},
pubmed = {pmid:27708160},
doi = {10.1073/pnas.1606791113},
url = {https://juser.fz-juelich.de/record/820731},
}