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https://hdl.handle.net/1822/48395
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Campo DC | Valor | Idioma |
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dc.contributor.author | Guedes, Ana | por |
dc.contributor.author | Ludovico, Paula | por |
dc.contributor.author | Marques, Maria Belém Sousa Sampaio | por |
dc.date.accessioned | 2017-12-18T13:41:21Z | - |
dc.date.available | 2017-12-18T13:41:21Z | - |
dc.date.issued | 2017 | - |
dc.identifier.issn | 0047-6374 | - |
dc.identifier.uri | https://hdl.handle.net/1822/48395 | - |
dc.description.abstract | Alpha-synuclein (syn) is the main component of proteinaceous inclusions known as Lewy bodies (LB5), which are implicated in the pathogenesis of the neurodegenerative diseases known as synucleinopathies, like Parkinson's disease (PD). Aging is a major risk factor for PD and thus, interventions that delay aging will have promising effects in PD and other synucleinopathies. Caloric restriction (CR) is the only non genetic intervention shown to promote lifespan extension in several model organisms. CR has been shown to alleviate syn toxicity and herein we confirmed the same effect on the yeast model for synucleinopathies during chronological lifespan. The data gathered showed that TOR1 deletion also results in similar longevity extension and abrogation of syn toxicity. Intriguingly, these interventions were associated with decreased autophagy, which was maintained at homeostatic levels. Autophagy maintenance at homeostatic levels promoted by CR or TOR1 abrogation in syn-expressing cells was achieved by decreasing Sir2 levels and activity. Furthermore, the opposite function of Torl and Sir2 in autophagy is probably associated with the maintenance of autophagy activity at homeostatic levels, a central event linked to abrogation of syn toxicity promoted by CR. | por |
dc.description.sponsorship | BSM is supported by the fellowship SFRH/BPD/90533/2012 funded by the Fundação para a Ciência e Tecnologia (FCT, Portugal). The research leading to these results received funding from the Fundação para a Ciência e Tecnologia (FCT), co-funded by Programa Operacional Regional do Norte (ON.2—O Novo Norte); from the Quadro de Referência Estratégico Nacional (QREN) through the Fundo Europeu de Desenvolvimento Regional (FEDER) and from the Projeto Estratégico – LA 26-2013–2014 (PEstC/SAU/LA0026/2013). | por |
dc.language.iso | eng | por |
dc.publisher | Elsevier 1 | por |
dc.relation | info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F90533%2F2012/PT | por |
dc.relation | info:eu-repo/grantAgreement/FCT/COMPETE/133016/PT | por |
dc.rights | openAccess | por |
dc.subject | Caloric restriction | por |
dc.subject | Autophagy | por |
dc.subject | Sirtuins | por |
dc.subject | Alpha-synuclein | por |
dc.subject | Synucleinopathies | por |
dc.title | Caloric restriction alleviates alpha-synuclein toxicity in aged yeast cells by controlling the opposite roles of Tor1 and Sir2 on autophagy | por |
dc.type | article | por |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | https://www.journals.elsevier.com/mechanisms-of-ageing-and-development | por |
oaire.citationStartPage | 270 | por |
oaire.citationEndPage | 276 | por |
oaire.citationVolume | 161 | por |
dc.date.updated | 2017-12-15T16:42:24Z | - |
dc.identifier.eissn | 1872-6216 | - |
dc.identifier.doi | 10.1016/j.mad.2016.04.006 | por |
dc.identifier.pmid | 27109470 | por |
dc.description.publicationversion | info:eu-repo/semantics/publishedVersion | por |
dc.subject.wos | Science & Technology | por |
sdum.journal | Mechanisms of Ageing and Development | por |
Aparece nas coleções: | ICVS - Artigos em revistas internacionais / Papers in international journals |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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untitled.pdf | 1,17 MB | Adobe PDF | Ver/Abrir |