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The relationship between protein synthesis and protein degradation in object recognition memory.
Furini, Cristiane R G; Myskiw, Jociane de C; Schmidt, Bianca E; Zinn, Carolina G; Peixoto, Patricia B; Pereira, Luiza D; Izquierdo, Ivan.
Afiliação
  • Furini CR; National Institute of Translational Neuroscience (INNT), National Research Council of Brazil, and Memory Center, Brain Institute of Rio Grande do Sul, Pontifical Catholic University of Rio Grande do Sul (PUCRS), Av. Ipiranga, 6690 - 2nd Floor, 90610-000 Porto Alegre, RS, Brazil.
  • Myskiw Jde C; National Institute of Translational Neuroscience (INNT), National Research Council of Brazil, and Memory Center, Brain Institute of Rio Grande do Sul, Pontifical Catholic University of Rio Grande do Sul (PUCRS), Av. Ipiranga, 6690 - 2nd Floor, 90610-000 Porto Alegre, RS, Brazil.
  • Schmidt BE; National Institute of Translational Neuroscience (INNT), National Research Council of Brazil, and Memory Center, Brain Institute of Rio Grande do Sul, Pontifical Catholic University of Rio Grande do Sul (PUCRS), Av. Ipiranga, 6690 - 2nd Floor, 90610-000 Porto Alegre, RS, Brazil.
  • Zinn CG; National Institute of Translational Neuroscience (INNT), National Research Council of Brazil, and Memory Center, Brain Institute of Rio Grande do Sul, Pontifical Catholic University of Rio Grande do Sul (PUCRS), Av. Ipiranga, 6690 - 2nd Floor, 90610-000 Porto Alegre, RS, Brazil.
  • Peixoto PB; National Institute of Translational Neuroscience (INNT), National Research Council of Brazil, and Memory Center, Brain Institute of Rio Grande do Sul, Pontifical Catholic University of Rio Grande do Sul (PUCRS), Av. Ipiranga, 6690 - 2nd Floor, 90610-000 Porto Alegre, RS, Brazil.
  • Pereira LD; National Institute of Translational Neuroscience (INNT), National Research Council of Brazil, and Memory Center, Brain Institute of Rio Grande do Sul, Pontifical Catholic University of Rio Grande do Sul (PUCRS), Av. Ipiranga, 6690 - 2nd Floor, 90610-000 Porto Alegre, RS, Brazil.
  • Izquierdo I; National Institute of Translational Neuroscience (INNT), National Research Council of Brazil, and Memory Center, Brain Institute of Rio Grande do Sul, Pontifical Catholic University of Rio Grande do Sul (PUCRS), Av. Ipiranga, 6690 - 2nd Floor, 90610-000 Porto Alegre, RS, Brazil. Electronic address:
Behav Brain Res ; 294: 17-24, 2015 Nov 01.
Article em En | MEDLINE | ID: mdl-26200717
For decades there has been a consensus that de novo protein synthesis is necessary for long-term memory. A second round of protein synthesis has been described for both extinction and reconsolidation following an unreinforced test session. Recently, it was shown that consolidation and reconsolidation depend not only on protein synthesis but also on protein degradation by the ubiquitin-proteasome system (UPS), a major mechanism responsible for protein turnover. However, the involvement of UPS on consolidation and reconsolidation of object recognition memory remains unknown. Here we investigate in the CA1 region of the dorsal hippocampus the involvement of UPS-mediated protein degradation in consolidation and reconsolidation of object recognition memory. Animals with infusion cannulae stereotaxically implanted in the CA1 region of the dorsal hippocampus, were exposed to an object recognition task. The UPS inhibitor ß-Lactacystin did not affect the consolidation and the reconsolidation of object recognition memory at doses known to affect other forms of memory (inhibitory avoidance, spatial learning in a water maze) while the protein synthesis inhibitor anisomycin impaired the consolidation and the reconsolidation of the object recognition memory. However, ß-Lactacystin was able to reverse the impairment caused by anisomycin on the reconsolidation process in the CA1 region of the hippocampus. Therefore, it is possible to postulate a direct link between protein degradation and protein synthesis during the reconsolidation of the object recognition memory.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Reconhecimento Psicológico / Ubiquitina / Complexo de Endopeptidases do Proteassoma / Região CA1 Hipocampal / Proteólise Limite: Animals Idioma: En Revista: Behav Brain Res Ano de publicação: 2015 Tipo de documento: Article País de afiliação: Brasil País de publicação: Holanda
Texto completo
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XML
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Reconhecimento Psicológico / Ubiquitina / Complexo de Endopeptidases do Proteassoma / Região CA1 Hipocampal / Proteólise Limite: Animals Idioma: En Revista: Behav Brain Res Ano de publicação: 2015 Tipo de documento: Article País de afiliação: Brasil País de publicação: Holanda