Effects of Hippocampal LIMK Inhibition on Memory Acquisition, Consolidation, Retrieval, Reconsolidation, and Extinction

Autores
Lunardi, Paula Santana; Sachser, Ricardo Marcelo; Sierra, Rodrigo Ordoñez; Pedraza, Lizeth Katherine; Medina, Candela; de la Fuente, Verónica; Romano, Arturo Gabriel; Quillfeldt, Jorge Alberto; de Oliveira Alvares, Lucas
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Long-lasting changes in dendritic spines provide a physical correlate for memory formation and persistence. LIM kinase (LIMK) plays a critical role in orchestrating dendritic actin dynamics during memory processing, since it is the convergent downstream target of both the Rac1/PAK and RhoA/ROCK pathways that in turn induce cofilin phosphorylation and prevent depolymerization of actin filaments. Here, using a potent LIMK inhibitor (BMS-5), we investigated the role of LIMK activity in the dorsal hippocampus during contextual fear memory in rats. We first found that post-training administration of BMS-5 impaired memory consolidation in a dose-dependent manner. Inhibiting LIMK before training also disrupted memory acquisition. We then demonstrated that hippocampal LIMK activity seems to be critical for memory retrieval and reconsolidation, since both processes were impaired by BMS-5 treatment. Contextual fear memory extinction, however, was not sensitive to the same treatment. In conclusion, our findings demonstrate that hippocampal LIMK activity plays an important role in memory acquisition, consolidation, retrieval, and reconsolidation during contextual fear conditioning.
Fil: Lunardi, Paula Santana. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Sachser, Ricardo Marcelo. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Sierra, Rodrigo Ordoñez. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Pedraza, Lizeth Katherine. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Medina, Candela. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Fisiología, Biología Molecular y Neurociencias. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Fisiología, Biología Molecular y Neurociencias; Argentina
Fil: de la Fuente, Verónica. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Fisiología, Biología Molecular y Neurociencias. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Fisiología, Biología Molecular y Neurociencias; Argentina
Fil: Romano, Arturo Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Fisiología, Biología Molecular y Neurociencias. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Fisiología, Biología Molecular y Neurociencias; Argentina
Fil: Quillfeldt, Jorge Alberto. Universidade Federal do Rio Grande do Sul; Brasil
Fil: de Oliveira Alvares, Lucas. Universidade Federal do Rio Grande do Sul; Brasil
Materia
Bms-5
Dorsal Hippocampus
Memory
Rats
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/65682
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/65682
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Effects of Hippocampal LIMK Inhibition on Memory Acquisition, Consolidation, Retrieval, Reconsolidation, and ExtinctionLunardi, Paula SantanaSachser, Ricardo MarceloSierra, Rodrigo OrdoñezPedraza, Lizeth KatherineMedina, Candelade la Fuente, VerónicaRomano, Arturo GabrielQuillfeldt, Jorge Albertode Oliveira Alvares, LucasBms-5Dorsal HippocampusMemoryRatshttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Long-lasting changes in dendritic spines provide a physical correlate for memory formation and persistence. LIM kinase (LIMK) plays a critical role in orchestrating dendritic actin dynamics during memory processing, since it is the convergent downstream target of both the Rac1/PAK and RhoA/ROCK pathways that in turn induce cofilin phosphorylation and prevent depolymerization of actin filaments. Here, using a potent LIMK inhibitor (BMS-5), we investigated the role of LIMK activity in the dorsal hippocampus during contextual fear memory in rats. We first found that post-training administration of BMS-5 impaired memory consolidation in a dose-dependent manner. Inhibiting LIMK before training also disrupted memory acquisition. We then demonstrated that hippocampal LIMK activity seems to be critical for memory retrieval and reconsolidation, since both processes were impaired by BMS-5 treatment. Contextual fear memory extinction, however, was not sensitive to the same treatment. In conclusion, our findings demonstrate that hippocampal LIMK activity plays an important role in memory acquisition, consolidation, retrieval, and reconsolidation during contextual fear conditioning.Fil: Lunardi, Paula Santana. Universidade Federal do Rio Grande do Sul; BrasilFil: Sachser, Ricardo Marcelo. Universidade Federal do Rio Grande do Sul; BrasilFil: Sierra, Rodrigo Ordoñez. Universidade Federal do Rio Grande do Sul; BrasilFil: Pedraza, Lizeth Katherine. Universidade Federal do Rio Grande do Sul; BrasilFil: Medina, Candela. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Fisiología, Biología Molecular y Neurociencias. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Fisiología, Biología Molecular y Neurociencias; ArgentinaFil: de la Fuente, Verónica. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Fisiología, Biología Molecular y Neurociencias. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Fisiología, Biología Molecular y Neurociencias; ArgentinaFil: Romano, Arturo Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Fisiología, Biología Molecular y Neurociencias. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Fisiología, Biología Molecular y Neurociencias; ArgentinaFil: Quillfeldt, Jorge Alberto. Universidade Federal do Rio Grande do Sul; BrasilFil: de Oliveira Alvares, Lucas. Universidade Federal do Rio Grande do Sul; BrasilHumana Press2018-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/65682Lunardi, Paula Santana; Sachser, Ricardo Marcelo; Sierra, Rodrigo Ordoñez; Pedraza, Lizeth Katherine; Medina, Candela; et al.; Effects of Hippocampal LIMK Inhibition on Memory Acquisition, Consolidation, Retrieval, Reconsolidation, and Extinction; Humana Press; Molecular Neurobiology; 55; 2; 2-2018; 958-9670893-7648CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1007/s12035-016-0361-xinfo:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs12035-016-0361-xinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:28:28Zoai:ri.conicet.gov.ar:11336/65682instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 14:28:28.587CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Effects of Hippocampal LIMK Inhibition on Memory Acquisition, Consolidation, Retrieval, Reconsolidation, and Extinction
title Effects of Hippocampal LIMK Inhibition on Memory Acquisition, Consolidation, Retrieval, Reconsolidation, and Extinction
spellingShingle Effects of Hippocampal LIMK Inhibition on Memory Acquisition, Consolidation, Retrieval, Reconsolidation, and Extinction
Lunardi, Paula Santana
Bms-5
Dorsal Hippocampus
Memory
Rats
title_short Effects of Hippocampal LIMK Inhibition on Memory Acquisition, Consolidation, Retrieval, Reconsolidation, and Extinction
title_full Effects of Hippocampal LIMK Inhibition on Memory Acquisition, Consolidation, Retrieval, Reconsolidation, and Extinction
title_fullStr Effects of Hippocampal LIMK Inhibition on Memory Acquisition, Consolidation, Retrieval, Reconsolidation, and Extinction
title_full_unstemmed Effects of Hippocampal LIMK Inhibition on Memory Acquisition, Consolidation, Retrieval, Reconsolidation, and Extinction
title_sort Effects of Hippocampal LIMK Inhibition on Memory Acquisition, Consolidation, Retrieval, Reconsolidation, and Extinction
dc.creator.none.fl_str_mv Lunardi, Paula Santana
Sachser, Ricardo Marcelo
Sierra, Rodrigo Ordoñez
Pedraza, Lizeth Katherine
Medina, Candela
de la Fuente, Verónica
Romano, Arturo Gabriel
Quillfeldt, Jorge Alberto
de Oliveira Alvares, Lucas
author Lunardi, Paula Santana
author_facet Lunardi, Paula Santana
Sachser, Ricardo Marcelo
Sierra, Rodrigo Ordoñez
Pedraza, Lizeth Katherine
Medina, Candela
de la Fuente, Verónica
Romano, Arturo Gabriel
Quillfeldt, Jorge Alberto
de Oliveira Alvares, Lucas
author_role author
author2 Sachser, Ricardo Marcelo
Sierra, Rodrigo Ordoñez
Pedraza, Lizeth Katherine
Medina, Candela
de la Fuente, Verónica
Romano, Arturo Gabriel
Quillfeldt, Jorge Alberto
de Oliveira Alvares, Lucas
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Bms-5
Dorsal Hippocampus
Memory
Rats
topic Bms-5
Dorsal Hippocampus
Memory
Rats
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Long-lasting changes in dendritic spines provide a physical correlate for memory formation and persistence. LIM kinase (LIMK) plays a critical role in orchestrating dendritic actin dynamics during memory processing, since it is the convergent downstream target of both the Rac1/PAK and RhoA/ROCK pathways that in turn induce cofilin phosphorylation and prevent depolymerization of actin filaments. Here, using a potent LIMK inhibitor (BMS-5), we investigated the role of LIMK activity in the dorsal hippocampus during contextual fear memory in rats. We first found that post-training administration of BMS-5 impaired memory consolidation in a dose-dependent manner. Inhibiting LIMK before training also disrupted memory acquisition. We then demonstrated that hippocampal LIMK activity seems to be critical for memory retrieval and reconsolidation, since both processes were impaired by BMS-5 treatment. Contextual fear memory extinction, however, was not sensitive to the same treatment. In conclusion, our findings demonstrate that hippocampal LIMK activity plays an important role in memory acquisition, consolidation, retrieval, and reconsolidation during contextual fear conditioning.
Fil: Lunardi, Paula Santana. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Sachser, Ricardo Marcelo. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Sierra, Rodrigo Ordoñez. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Pedraza, Lizeth Katherine. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Medina, Candela. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Fisiología, Biología Molecular y Neurociencias. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Fisiología, Biología Molecular y Neurociencias; Argentina
Fil: de la Fuente, Verónica. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Fisiología, Biología Molecular y Neurociencias. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Fisiología, Biología Molecular y Neurociencias; Argentina
Fil: Romano, Arturo Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Fisiología, Biología Molecular y Neurociencias. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Fisiología, Biología Molecular y Neurociencias; Argentina
Fil: Quillfeldt, Jorge Alberto. Universidade Federal do Rio Grande do Sul; Brasil
Fil: de Oliveira Alvares, Lucas. Universidade Federal do Rio Grande do Sul; Brasil
description Long-lasting changes in dendritic spines provide a physical correlate for memory formation and persistence. LIM kinase (LIMK) plays a critical role in orchestrating dendritic actin dynamics during memory processing, since it is the convergent downstream target of both the Rac1/PAK and RhoA/ROCK pathways that in turn induce cofilin phosphorylation and prevent depolymerization of actin filaments. Here, using a potent LIMK inhibitor (BMS-5), we investigated the role of LIMK activity in the dorsal hippocampus during contextual fear memory in rats. We first found that post-training administration of BMS-5 impaired memory consolidation in a dose-dependent manner. Inhibiting LIMK before training also disrupted memory acquisition. We then demonstrated that hippocampal LIMK activity seems to be critical for memory retrieval and reconsolidation, since both processes were impaired by BMS-5 treatment. Contextual fear memory extinction, however, was not sensitive to the same treatment. In conclusion, our findings demonstrate that hippocampal LIMK activity plays an important role in memory acquisition, consolidation, retrieval, and reconsolidation during contextual fear conditioning.
publishDate 2018
dc.date.none.fl_str_mv 2018-02
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/65682
Lunardi, Paula Santana; Sachser, Ricardo Marcelo; Sierra, Rodrigo Ordoñez; Pedraza, Lizeth Katherine; Medina, Candela; et al.; Effects of Hippocampal LIMK Inhibition on Memory Acquisition, Consolidation, Retrieval, Reconsolidation, and Extinction; Humana Press; Molecular Neurobiology; 55; 2; 2-2018; 958-967
0893-7648
CONICET Digital
CONICET
url http://hdl.handle.net/11336/65682
identifier_str_mv Lunardi, Paula Santana; Sachser, Ricardo Marcelo; Sierra, Rodrigo Ordoñez; Pedraza, Lizeth Katherine; Medina, Candela; et al.; Effects of Hippocampal LIMK Inhibition on Memory Acquisition, Consolidation, Retrieval, Reconsolidation, and Extinction; Humana Press; Molecular Neurobiology; 55; 2; 2-2018; 958-967
0893-7648
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1007/s12035-016-0361-x
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs12035-016-0361-x
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Humana Press
publisher.none.fl_str_mv Humana Press
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1846082748408659968
score 13.22299

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