Distinctive roles of PLD signaling elicited by oxidative stress in synaptic endings from adult and aged rats

Autores
Mateos, Melina Valeria; Giusto, Norma Maria; Salvador, Gabriela Alejandra
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The role of iron in oxidative injury in the nervous system has been extensively described. However, little is known about the role of lipid signal transduction in neurodegeneration processes triggered by iron overload. The purpose of this work was to characterize the regulation and the crosstalk between phosphatidylcholine (PC)-derived diacylglycerol (DAG) and cannonical signaling pathways during iron-induced oxidative stress in cerebral cortex synaptic endings (Syn) obtained from adult (4 months old) and aged (28 months old) rats. DAG production was increased in Syn exposed to iron. This rise in DAG formation was due to phospholipase D1 (PLD1) and PLD2 activations. In adult rats, PKD1, ERK1/2 and PKCα/βII activations were PLD1 and PLD2 dependent. In contrast, in senile rats, DAG formation catalyzed by PLDs did not participate in PKD1, ERK1/2 and PKCα/βII regulations, but it was dependent on ERK and PKC activities. Iron-induced oxidative stress promoted an increased localization of PLD1 in membrane rafts, whereas PLD2 was excluded from these domains and appeared to be involved in glutamate transporter function. Our results show a differential regulation and synaptic function of DAG generated by PLDs during iron-induced oxidative stress as a consequence of aging.
Fil: Mateos, Melina Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; Argentina
Fil: Giusto, Norma Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; Argentina
Fil: Salvador, Gabriela Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; Argentina
Materia
Phospholipase D
Protein Kinase D
Oxidative Enjury
Aging
Diacylglycerol
Membrane Microdomain
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:11336/41951
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/41951
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Distinctive roles of PLD signaling elicited by oxidative stress in synaptic endings from adult and aged ratsMateos, Melina ValeriaGiusto, Norma MariaSalvador, Gabriela AlejandraPhospholipase DProtein Kinase DOxidative EnjuryAgingDiacylglycerolMembrane Microdomainhttps://purl.org/becyt/ford/3.3https://purl.org/becyt/ford/3The role of iron in oxidative injury in the nervous system has been extensively described. However, little is known about the role of lipid signal transduction in neurodegeneration processes triggered by iron overload. The purpose of this work was to characterize the regulation and the crosstalk between phosphatidylcholine (PC)-derived diacylglycerol (DAG) and cannonical signaling pathways during iron-induced oxidative stress in cerebral cortex synaptic endings (Syn) obtained from adult (4 months old) and aged (28 months old) rats. DAG production was increased in Syn exposed to iron. This rise in DAG formation was due to phospholipase D1 (PLD1) and PLD2 activations. In adult rats, PKD1, ERK1/2 and PKCα/βII activations were PLD1 and PLD2 dependent. In contrast, in senile rats, DAG formation catalyzed by PLDs did not participate in PKD1, ERK1/2 and PKCα/βII regulations, but it was dependent on ERK and PKC activities. Iron-induced oxidative stress promoted an increased localization of PLD1 in membrane rafts, whereas PLD2 was excluded from these domains and appeared to be involved in glutamate transporter function. Our results show a differential regulation and synaptic function of DAG generated by PLDs during iron-induced oxidative stress as a consequence of aging.Fil: Mateos, Melina Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; ArgentinaFil: Giusto, Norma Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; ArgentinaFil: Salvador, Gabriela Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; ArgentinaElsevier Science2012-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/41951Mateos, Melina Valeria; Giusto, Norma Maria; Salvador, Gabriela Alejandra; Distinctive roles of PLD signaling elicited by oxidative stress in synaptic endings from adult and aged rats; Elsevier Science; Biochimica et Biophysica Acta-Molecular Cell Research; 1823; 12; 12-2012; 2136-21480167-4889CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0167488912002625info:eu-repo/semantics/altIdentifier/doi/10.1016/j.bbamcr.2012.09.005info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:07:04Zoai:ri.conicet.gov.ar:11336/41951instacron: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 15:07:04.876CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Distinctive roles of PLD signaling elicited by oxidative stress in synaptic endings from adult and aged rats
title Distinctive roles of PLD signaling elicited by oxidative stress in synaptic endings from adult and aged rats
spellingShingle Distinctive roles of PLD signaling elicited by oxidative stress in synaptic endings from adult and aged rats
Mateos, Melina Valeria
Phospholipase D
Protein Kinase D
Oxidative Enjury
Aging
Diacylglycerol
Membrane Microdomain
title_short Distinctive roles of PLD signaling elicited by oxidative stress in synaptic endings from adult and aged rats
title_full Distinctive roles of PLD signaling elicited by oxidative stress in synaptic endings from adult and aged rats
title_fullStr Distinctive roles of PLD signaling elicited by oxidative stress in synaptic endings from adult and aged rats
title_full_unstemmed Distinctive roles of PLD signaling elicited by oxidative stress in synaptic endings from adult and aged rats
title_sort Distinctive roles of PLD signaling elicited by oxidative stress in synaptic endings from adult and aged rats
dc.creator.none.fl_str_mv Mateos, Melina Valeria
Giusto, Norma Maria
Salvador, Gabriela Alejandra
author Mateos, Melina Valeria
author_facet Mateos, Melina Valeria
Giusto, Norma Maria
Salvador, Gabriela Alejandra
author_role author
author2 Giusto, Norma Maria
Salvador, Gabriela Alejandra
author2_role author
author
dc.subject.none.fl_str_mv Phospholipase D
Protein Kinase D
Oxidative Enjury
Aging
Diacylglycerol
Membrane Microdomain
topic Phospholipase D
Protein Kinase D
Oxidative Enjury
Aging
Diacylglycerol
Membrane Microdomain
purl_subject.fl_str_mv https://purl.org/becyt/ford/3.3
https://purl.org/becyt/ford/3
dc.description.none.fl_txt_mv The role of iron in oxidative injury in the nervous system has been extensively described. However, little is known about the role of lipid signal transduction in neurodegeneration processes triggered by iron overload. The purpose of this work was to characterize the regulation and the crosstalk between phosphatidylcholine (PC)-derived diacylglycerol (DAG) and cannonical signaling pathways during iron-induced oxidative stress in cerebral cortex synaptic endings (Syn) obtained from adult (4 months old) and aged (28 months old) rats. DAG production was increased in Syn exposed to iron. This rise in DAG formation was due to phospholipase D1 (PLD1) and PLD2 activations. In adult rats, PKD1, ERK1/2 and PKCα/βII activations were PLD1 and PLD2 dependent. In contrast, in senile rats, DAG formation catalyzed by PLDs did not participate in PKD1, ERK1/2 and PKCα/βII regulations, but it was dependent on ERK and PKC activities. Iron-induced oxidative stress promoted an increased localization of PLD1 in membrane rafts, whereas PLD2 was excluded from these domains and appeared to be involved in glutamate transporter function. Our results show a differential regulation and synaptic function of DAG generated by PLDs during iron-induced oxidative stress as a consequence of aging.
Fil: Mateos, Melina Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; Argentina
Fil: Giusto, Norma Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; Argentina
Fil: Salvador, Gabriela Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; Argentina
description The role of iron in oxidative injury in the nervous system has been extensively described. However, little is known about the role of lipid signal transduction in neurodegeneration processes triggered by iron overload. The purpose of this work was to characterize the regulation and the crosstalk between phosphatidylcholine (PC)-derived diacylglycerol (DAG) and cannonical signaling pathways during iron-induced oxidative stress in cerebral cortex synaptic endings (Syn) obtained from adult (4 months old) and aged (28 months old) rats. DAG production was increased in Syn exposed to iron. This rise in DAG formation was due to phospholipase D1 (PLD1) and PLD2 activations. In adult rats, PKD1, ERK1/2 and PKCα/βII activations were PLD1 and PLD2 dependent. In contrast, in senile rats, DAG formation catalyzed by PLDs did not participate in PKD1, ERK1/2 and PKCα/βII regulations, but it was dependent on ERK and PKC activities. Iron-induced oxidative stress promoted an increased localization of PLD1 in membrane rafts, whereas PLD2 was excluded from these domains and appeared to be involved in glutamate transporter function. Our results show a differential regulation and synaptic function of DAG generated by PLDs during iron-induced oxidative stress as a consequence of aging.
publishDate 2012
dc.date.none.fl_str_mv 2012-12
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/11336/41951
Mateos, Melina Valeria; Giusto, Norma Maria; Salvador, Gabriela Alejandra; Distinctive roles of PLD signaling elicited by oxidative stress in synaptic endings from adult and aged rats; Elsevier Science; Biochimica et Biophysica Acta-Molecular Cell Research; 1823; 12; 12-2012; 2136-2148
0167-4889
CONICET Digital
CONICET
url http://hdl.handle.net/11336/41951
identifier_str_mv Mateos, Melina Valeria; Giusto, Norma Maria; Salvador, Gabriela Alejandra; Distinctive roles of PLD signaling elicited by oxidative stress in synaptic endings from adult and aged rats; Elsevier Science; Biochimica et Biophysica Acta-Molecular Cell Research; 1823; 12; 12-2012; 2136-2148
0167-4889
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0167488912002625
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.bbamcr.2012.09.005
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
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
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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score 13.22299

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