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Microglial Sirtuin 2 shapes long-term potentiation in hippocampal slices

dc.contributor.authorSa de Almeida, Joana
dc.contributor.authorVargas, Mariana
dc.contributor.authorFonseca-Gomes, João
dc.contributor.authorTanqueiro, Sara
dc.contributor.authorBelo, Rita F.
dc.contributor.authorMiranda-Lourenço, Catarina
dc.contributor.authorSebastião, Ana M
dc.contributor.authorDiógenes, Maria José
dc.contributor.authorPais, Teresa F.
dc.date.accessioned2022-12-06T12:21:18Z
dc.date.available2022-12-06T12:21:18Z
dc.date.issued2020
dc.descriptionCopyright © 2020 Sa de Almeida, Vargas, Fonseca-Gomes, Tanqueiro, Belo, Miranda-Lourenço, Sebastião, Diógenes and Pais. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.pt_PT
dc.description.abstractMicroglial cells have emerged as crucial players in synaptic plasticity during development and adulthood, and also in neurodegenerative and neuroinflammatory conditions. Here we found that decreased levels of Sirtuin 2 (Sirt2) deacetylase in microglia affects hippocampal synaptic plasticity under inflammatory conditions. The results show that long-term potentiation (LTP) magnitude recorded from hippocampal slices of wild type mice does not differ between those exposed to lipopolysaccharide (LPS), a pro-inflammatory stimulus, or BSA. However, LTP recorded from hippocampal slices of microglial-specific Sirt2 deficient (Sirt2-) mice was significantly impaired by LPS. Importantly, LTP values were restored by memantine, an antagonist of N-methyl-D-aspartate (NMDA) receptors. These results indicate that microglial Sirt2 prevents NMDA-mediated excitotoxicity in hippocampal slices in response to an inflammatory signal such as LPS. Overall, our data suggest a key-protective role for microglial Sirt2 in mnesic deficits associated with neuroinflammation.pt_PT
dc.description.sponsorshipThis study was supported by Santa Casa da Misericórdia de Lisboa (MB37-2017), GAPIC Research Program of the University of Lisbon Medical School (n° 2014002 and n° 2015028) and the following doctoral grants: PD/BD/128091/2016, SFRH/BD/118238/2016, PD/BD/114337/2016, and PD/BD/1144- 41/2016.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationFront Neurosci. 2020 Jun 18;14:614pt_PT
dc.identifier.doi10.3389/fnins.2020.00614pt_PT
dc.identifier.eissn1662-453X
dc.identifier.issn1662-4548
dc.identifier.urihttp://hdl.handle.net/10451/55347
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherFrontierspt_PT
dc.relationModulation of BDNF effects by adenosine: a new strategy for schizophrenia treatment - Adenosinergic signaling as a new pharmacological target for schizophrenia treatment
dc.relationRegulation of adenosine levels as a new therapeutic strategy for Rett Syndrome
dc.relationKyotorphin as new pharmacological therapeutic strategy for Alzheimers Disease
dc.relationBDNF receptor cleavage:relevance for Alzheimer´s Disease pathophysiology
dc.relation.publisherversionhttps://www.frontiersin.org/journals/neurosciencept_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectLong-term potentiationpt_PT
dc.subjectMemantinept_PT
dc.subjectMicrogliapt_PT
dc.subjectNeuroinfalmmationpt_PT
dc.subjectSirtuin 2pt_PT
dc.titleMicroglial Sirtuin 2 shapes long-term potentiation in hippocampal slicespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleModulation of BDNF effects by adenosine: a new strategy for schizophrenia treatment - Adenosinergic signaling as a new pharmacological target for schizophrenia treatment
oaire.awardTitleRegulation of adenosine levels as a new therapeutic strategy for Rett Syndrome
oaire.awardTitleKyotorphin as new pharmacological therapeutic strategy for Alzheimers Disease
oaire.awardTitleBDNF receptor cleavage:relevance for Alzheimer´s Disease pathophysiology
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//PD%2FBD%2F128091%2F2016/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F118238%2F2016/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//PD%2FBD%2F114337%2F2016/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//PD%2FBD%2F114441%2F2016/PT
oaire.citation.titleFrontiers in Neurosciencept_PT
oaire.citation.volume14pt_PT
person.familyNameFonseca-Gomes
person.familyNameTanqueiro
person.familyNameBelo
person.familyNameMiranda Lourenço
person.familyNameSebastião
person.familyNamede Oliveira Diógenes Nogueira
person.givenNameJoão
person.givenNameSara
person.givenNameRita
person.givenNameCatarina
person.givenNameAna M
person.givenNameMaria José
person.identifier697312
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person.identifier.ciencia-id6818-4322-9ED9
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person.identifier.ciencia-idA815-F59B-47E2
person.identifier.ciencia-idF112-55E8-E37E
person.identifier.ciencia-id4B10-886B-DAFC
person.identifier.orcid0000-0001-7915-3517
person.identifier.orcid0000-0002-9151-7149
person.identifier.orcid0000-0002-4553-3455
person.identifier.orcid0000-0002-9633-7999
person.identifier.orcid0000-0001-9030-6115
person.identifier.orcid0000-0001-5486-6246
person.identifier.scopus-author-id7004409879
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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