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Oxidative and nitrative alpha-synuclein modifications and proteostatic stress : implications for disease mechanisms and interventions in synucleinopathies

Oxidative and nitrative alpha-synuclein modifications and proteostatic stress : implications for disease mechanisms and interventions in synucleinopathies

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SCHILDKNECHT, Stefan, Hanne GERDING, Christiaan KARREMAN, Malte DRESCHER, Hilal A. LASHUEL, Tiago F. OUTEIRO, Donato A. DI MONTE, Marcel LEIST, 2013. Oxidative and nitrative alpha-synuclein modifications and proteostatic stress : implications for disease mechanisms and interventions in synucleinopathies. In: Journal of Neurochemistry. 125(4), pp. 491-511. ISSN 0022-3042. eISSN 1471-4159

@article{Schildknecht2013-05Oxida-24341, title={Oxidative and nitrative alpha-synuclein modifications and proteostatic stress : implications for disease mechanisms and interventions in synucleinopathies}, year={2013}, doi={10.1111/jnc.12226}, number={4}, volume={125}, issn={0022-3042}, journal={Journal of Neurochemistry}, pages={491--511}, author={Schildknecht, Stefan and Gerding, Hanne and Karreman, Christiaan and Drescher, Malte and Lashuel, Hilal A. and Outeiro, Tiago F. and Di Monte, Donato A. and Leist, Marcel} }

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/rdf/resource/123456789/24341"> <dc:creator>Gerding, Hanne</dc:creator> <dc:language>eng</dc:language> <dc:creator>Outeiro, Tiago F.</dc:creator> <dc:contributor>Leist, Marcel</dc:contributor> <dc:rights>deposit-license</dc:rights> <dc:creator>Di Monte, Donato A.</dc:creator> <dcterms:bibliographicCitation>Journal of Neurochemistry ; 125 (2013), 4. - S. 491-511</dcterms:bibliographicCitation> <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/24341"/> <dc:contributor>Schildknecht, Stefan</dc:contributor> <dc:contributor>Di Monte, Donato A.</dc:contributor> <dc:contributor>Gerding, Hanne</dc:contributor> <dc:creator>Drescher, Malte</dc:creator> <dc:creator>Schildknecht, Stefan</dc:creator> <dc:contributor>Lashuel, Hilal A.</dc:contributor> <dc:creator>Leist, Marcel</dc:creator> <dc:contributor>Karreman, Christiaan</dc:contributor> <dcterms:title>Oxidative and nitrative alpha-synuclein modifications and proteostatic stress : implications for disease mechanisms and interventions in synucleinopathies</dcterms:title> <dc:creator>Karreman, Christiaan</dc:creator> <dcterms:abstract xml:lang="eng">Alpha-synuclein (ASYN) is a major constituent of the typical protein aggregates observed in several neurodegenerative diseases that are collectively referred to as synucleinopathies. A causal involvement of ASYN in the initiation and progression of neurological diseases is suggested by observations indicating that single-point (e.g., A30P, A53T) or multiplication mutations of the gene encoding for ASYN cause early onset forms of Parkinson's disease (PD). The relative regional specificity of ASYN pathology is still a riddle that cannot be simply explained by its expression pattern. Also, transgenic over-expression of ASYN in mice does not recapitulate the typical dopaminergic neuronal death observed in PD. Thus, additional factors must contribute to ASYN-related toxicity. For instance, synucleinopathies are usually associated with inflammation and elevated levels of oxidative stress in affected brain areas. In turn, these conditions favor oxidative modifications of ASYN. Among these modifications, nitration of tyrosine residues, formation of covalent ASYN dimers, as well as methionine sulfoxidations are prominent examples that are observed in post-mortem PD brain sections. Oxidative modifications can affect ASYN aggregation, as well as its binding to biological membranes. This would affect neurotransmitter recycling, mitochondrial function and dynamics (fission/fusion), ASYN's degradation within a cell and, possibly, the transfer of modified ASYN to adjacent cells. Here, we propose a model on how covalent modifications of ASYN link energy stress, altered proteostasis, and oxidative stress, three major pathogenic processes involved in PD progression. Moreover, we hypothesize that ASYN may act physiologically as a catalytically regenerated scavenger of oxidants in healthy cells, thus performing an important protective role prior to the onset of disease or during aging.</dcterms:abstract> <dcterms:rights rdf:resource="http://nbn-resolving.org/urn:nbn:de:bsz:352-20140905103605204-4002607-1"/> <dc:contributor>Outeiro, Tiago F.</dc:contributor> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2013-08-27T13:52:34Z</dc:date> <dc:creator>Lashuel, Hilal A.</dc:creator> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2013-08-27T13:52:34Z</dcterms:available> <dc:contributor>Drescher, Malte</dc:contributor> <dcterms:issued>2013-05</dcterms:issued> </rdf:Description> </rdf:RDF>

Dateiabrufe seit 01.10.2014 (Informationen über die Zugriffsstatistik)

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