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dc.contributor.authorGonzalo Benito, Hugo
dc.contributor.authorBrieva Ruiz, Luis
dc.contributor.authorTatzber, Franz
dc.contributor.authorJové Font, Mariona
dc.contributor.authorCacabelos Barral, Daniel
dc.contributor.authorCassanyé, Anna
dc.contributor.authorLanau, Lucia
dc.contributor.authorBoada Pallàs, Jordi
dc.contributor.authorSerrano Casasola, José Carlos Enrique
dc.contributor.authorGonzález Mingot, Cristina
dc.contributor.authorHernández, Lourdes
dc.contributor.authorPeralta Moncusí, Silvia
dc.contributor.authorPamplona Gras, Reinald
dc.contributor.authorPortero Otín, Manuel
dc.date.accessioned2016-11-18T09:37:52Z
dc.date.issued2012
dc.identifier.issn0022-3042
dc.identifier.urihttp://hdl.handle.net/10459.1/58574
dc.description.abstractMetabolomic and lipidomic analyses have been used for the profiling of neurodegenerative processes, both in targeted and untargeted approaches. In this work we have applied these techniques to the study of CSF samples of multiple sclerosis (MS) patients (n = 9), compared with samples of non-MS individuals (n = 9) using mass-spectrometry. We have used western-blot and analyzed cell culture to confirm pathogenic pathways suggested by mass-spectrometric measurements. The results of the untargeted approach of metabolomics and lipidomics suggest the existence of several metabolites and lipids discriminating both populations. Applying targeted lipidomic analyses focused to a pathogenic pathway in MS, oxidative stress, reveal that the lipid peroxidation marker 8-iso-prostaglandin F2α is increased in CSF from MS patients. Furthermore, as lipid peroxidation exerts its pathogenical effects through protein modification, we studied the incidence of protein lipoxidation, revealing specific increases in carboxymethylated, neuroketal and malondialdehyde-mediated protein modifications in proteins of CSF from MS patients, despite the absence of their precursors glyoxal and methylglyoxal. Finally, we report that the level of neuroketal-modified proteins correlated with a hitherto unknown increased amount of autoantibodies against lipid peroxidation-modified proteins in CSF, without compensation by signaling induced by lipid peroxidation via peroxisome proliferator-activated receptor γ (PPARγ). The results, despite the limitation of being obtained in a small population, strongly suggest that autoimmunity against in situ produced epitopes derived from lipid peroxidation can be a relevant pathogenic factor in MS.ca_ES
dc.description.sponsorshipWe are indebted to CSF donors for their support and permission. This study was supported by Biogen Idec Laboratories, the Spanish Ministry of Science and Innovation (CENIT program, BFU2009-11879/BFI and AGL2006-1243), the Autonomous Goverment of Catalunya (2009SGR-735) and the Spanish Ministry of Health (FIS 08-1843, 11-01532). This study was supported also by the COST B-35 Action. HG is a predoctoral fellow from the ‘Generalitat de Catalunya’ (HG017611). DC is a predoctoral fellow from Spanish Ministry of Health (FI08-00707). AC is a predoctoral fellow from ‘La Fundació La Caixa’.ca_ES
dc.language.isoengca_ES
dc.publisherWileyca_ES
dc.relationMICINN/PN2008-2011/BFU2009-11879/BFI
dc.relationMIECI/PN2004-2007/AGL2006-1243
dc.relation.isformatofReproducció del document publicat a https://doi.org/10.1111/j.1471-4159.2012.07934.xca_ES
dc.relation.ispartofJournal of Neurochemistry, 2012, vol. 123, núm. 4, p. 622-634ca_ES
dc.rights(c) International Society for Neurochemistry, 2012ca_ES
dc.subjectAItoimmunityca_ES
dc.subjectLipid peroxidationca_ES
dc.subjectPPARca_ES
dc.subjectProtein oxidationca_ES
dc.titleLipidome analysis in multiple sclerosis reveals protein lipoxidative damage as a potential pathogenic mechanismca_ES
dc.typearticleca_ES
dc.identifier.idgrec018290
dc.type.versionpublishedVersionca_ES
dc.rights.accessRightsinfo:eu-repo/semantics/restrictedAccessca_ES
dc.identifier.doihttps://doi.org/10.1111/j.1471-4159.2012.07934.x
dc.date.embargoEndDate10000-01-01


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