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Actin cytoskeleton disruption is an early event upon exposure of cerebellar granule neurons to SIN-1-induced oxidative stress

dc.contributor.authorTiago, Teresa
dc.contributor.authorSilva, D.
dc.contributor.authorSamhan-Arias, A. K.
dc.contributor.authorAureliano, Manuel
dc.contributor.authorGutierrez-Merino, Carlos
dc.date.accessioned2012-06-26T10:44:28Z
dc.date.available2012-06-26T10:44:28Z
dc.date.issued2009
dc.description.abstractIn this work we have studied the alterations of the actin cytoskeleton in cultured cerebellar granule neurons during exposure to the peroxynitritereleasing agent SIN-1 for less than 2 hours. Actin polymerization state was assessed by fluorescence microscopy ratio images using double labelling for actin filaments (phallacidin) and monomers (DNase-I). In addition, agonists and antagonists of L-type Ca2+ channels and NMDA receptors were used in order to find out whether these compounds were able to attenuate or potentiate the effects of oxidative stress on the perturbation of the actin cytoskeleton. The results reveal that a flux of peroxynitrite as low as 0.5 ;M/min during 1h is sufficient to promote alterations of actin dynamics leading to partial actin cytoskeleton disruption and suggest that this is an early event linked to cytosolic calcium concentration changes.por
dc.identifier.urihttp://hdl.handle.net/10400.1/1303
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherMedimondpor
dc.subjectNeuronspor
dc.subjectActinpor
dc.titleActin cytoskeleton disruption is an early event upon exposure of cerebellar granule neurons to SIN-1-induced oxidative stresspor
dc.typeconference object
dspace.entity.typePublication
oaire.citation.endPage4por
oaire.citation.startPage1por
oaire.citation.titleEuropean Meeting of the Society for Free Radical Research Internationalpor
person.familyNameAureliano
person.familyNameGutierrez-Merino
person.givenNameManuel
person.givenNameCarlos
person.identifier584146
person.identifier.ciencia-idAA14-3490-DC5E
person.identifier.orcid0000-0003-4858-3201
person.identifier.orcid0000-0003-3673-7007
person.identifier.ridI-3283-2012
person.identifier.ridK-4574-2014
person.identifier.scopus-author-id6603412860
rcaap.rightsopenAccesspor
rcaap.typeconferenceObjectpor
relation.isAuthorOfPublicationbb413661-7edd-4b57-8338-33889cfd05db
relation.isAuthorOfPublication1edd3bda-28a9-4d7f-a404-f867f72ddefa
relation.isAuthorOfPublication.latestForDiscoverybb413661-7edd-4b57-8338-33889cfd05db

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