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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/65682
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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 Técnicas2025-09-29T09:39:08Zoai: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:34982025-09-29 09:39:09.144CONICET 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 |
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1844613238129426432 |
score |
13.070432 |