Modulation of ERK1/2 and p38 MAPK signaling pathway by ATP in osteoblasts: involvement of mechanical stress-activated calcium influx, PKC and Src activation

Autores
Katz, Sebastian; Boland, Ricardo Leopoldo; Santillán, Graciela Edith
Año de publicación
2006
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
There is evidence that extracellular nucleotides, acting through multiple P2 receptors, may play an important role in the regulation of bone metabolism by activating intracellular signaling cascades. We have studied the modulation of mitogen-activated protein kinase (MAPK) signaling pathways and its relationship to changes in intracellular calcium concentration ([Ca2+]i) induced by ATP in ROS-A 17/2.8 osteoblastic cells. ATP and UTP (10 μM) increased [Ca2+]i by cation release from intracellular stores. We have found that when the cells are subsequently subjected to mechanical stress (medium perturbation), a transient calcium influx occurs. This mechanical stress-activated calcium influx (MSACI) was not observed after ADP stimulation, indicating that P2Y2 receptor activation is required for MSACI. In addition, ERK 1/2 and p38 MAPK were activated by ATP in a dose- and time-dependent manner. This activation was almost completely blocked using neomycin (2.5 mM), an inhibitor of phosphoinositide-phospholipase C (PI-PLC), Ro 318220 (1 μM), a protein kinase C (PKC) inhibitor, and PP1 (50 μM), a potent and selective inhibitor of the Src-family tyrosine kinases. Ca2+-free extracellular medium (containing 0.5 mM EGTA) and the use of gadolinium (5 μM), which suppressed MSACI, prevented ERK 1/2 and p38 phosphorylation by ATP. Altogether, these results represent the first evidence to date suggesting that P2Y2 receptor stimulation by ATP in osteoblasts sensitizes mechanical stress activated calcium channels leading to calcium influx and a fast activation of the ERK 1/2 and p38 MAPK pathways. This effect also involves upstream mediators such as PI-PLC, PKC and Src family kinases.
Fil: Katz, Sebastian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina
Fil: Boland, Ricardo Leopoldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina
Fil: Santillán, Graciela Edith. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina
Materia
Atp
Mapks
P2y Receptors
Osteoblasts
Ca2+
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:11336/81971
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/81971
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Modulation of ERK1/2 and p38 MAPK signaling pathway by ATP in osteoblasts: involvement of mechanical stress-activated calcium influx, PKC and Src activationKatz, SebastianBoland, Ricardo LeopoldoSantillán, Graciela EdithAtpMapksP2y ReceptorsOsteoblastsCa2+https://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1There is evidence that extracellular nucleotides, acting through multiple P2 receptors, may play an important role in the regulation of bone metabolism by activating intracellular signaling cascades. We have studied the modulation of mitogen-activated protein kinase (MAPK) signaling pathways and its relationship to changes in intracellular calcium concentration ([Ca2+]i) induced by ATP in ROS-A 17/2.8 osteoblastic cells. ATP and UTP (10 μM) increased [Ca2+]i by cation release from intracellular stores. We have found that when the cells are subsequently subjected to mechanical stress (medium perturbation), a transient calcium influx occurs. This mechanical stress-activated calcium influx (MSACI) was not observed after ADP stimulation, indicating that P2Y2 receptor activation is required for MSACI. In addition, ERK 1/2 and p38 MAPK were activated by ATP in a dose- and time-dependent manner. This activation was almost completely blocked using neomycin (2.5 mM), an inhibitor of phosphoinositide-phospholipase C (PI-PLC), Ro 318220 (1 μM), a protein kinase C (PKC) inhibitor, and PP1 (50 μM), a potent and selective inhibitor of the Src-family tyrosine kinases. Ca2+-free extracellular medium (containing 0.5 mM EGTA) and the use of gadolinium (5 μM), which suppressed MSACI, prevented ERK 1/2 and p38 phosphorylation by ATP. Altogether, these results represent the first evidence to date suggesting that P2Y2 receptor stimulation by ATP in osteoblasts sensitizes mechanical stress activated calcium channels leading to calcium influx and a fast activation of the ERK 1/2 and p38 MAPK pathways. This effect also involves upstream mediators such as PI-PLC, PKC and Src family kinases.Fil: Katz, Sebastian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; ArgentinaFil: Boland, Ricardo Leopoldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; ArgentinaFil: Santillán, Graciela Edith. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; ArgentinaPergamon-Elsevier Science Ltd2006-12info: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/11336/81971Katz, Sebastian; Boland, Ricardo Leopoldo; Santillán, Graciela Edith; Modulation of ERK1/2 and p38 MAPK signaling pathway by ATP in osteoblasts: involvement of mechanical stress-activated calcium influx, PKC and Src activation; Pergamon-Elsevier Science Ltd; International Journal of Biochemistry and Cellular Biology; 38; 12; 12-2006; 2082-20911357-2725CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1357272506001877info:eu-repo/semantics/altIdentifier/doi/10.1016/j.biocel.2006.05.018info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:13:04Zoai:ri.conicet.gov.ar:11336/81971instacron: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 15:13:04.761CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Modulation of ERK1/2 and p38 MAPK signaling pathway by ATP in osteoblasts: involvement of mechanical stress-activated calcium influx, PKC and Src activation
title Modulation of ERK1/2 and p38 MAPK signaling pathway by ATP in osteoblasts: involvement of mechanical stress-activated calcium influx, PKC and Src activation
spellingShingle Modulation of ERK1/2 and p38 MAPK signaling pathway by ATP in osteoblasts: involvement of mechanical stress-activated calcium influx, PKC and Src activation
Katz, Sebastian
Atp
Mapks
P2y Receptors
Osteoblasts
Ca2+
title_short Modulation of ERK1/2 and p38 MAPK signaling pathway by ATP in osteoblasts: involvement of mechanical stress-activated calcium influx, PKC and Src activation
title_full Modulation of ERK1/2 and p38 MAPK signaling pathway by ATP in osteoblasts: involvement of mechanical stress-activated calcium influx, PKC and Src activation
title_fullStr Modulation of ERK1/2 and p38 MAPK signaling pathway by ATP in osteoblasts: involvement of mechanical stress-activated calcium influx, PKC and Src activation
title_full_unstemmed Modulation of ERK1/2 and p38 MAPK signaling pathway by ATP in osteoblasts: involvement of mechanical stress-activated calcium influx, PKC and Src activation
title_sort Modulation of ERK1/2 and p38 MAPK signaling pathway by ATP in osteoblasts: involvement of mechanical stress-activated calcium influx, PKC and Src activation
dc.creator.none.fl_str_mv Katz, Sebastian
Boland, Ricardo Leopoldo
Santillán, Graciela Edith
author Katz, Sebastian
author_facet Katz, Sebastian
Boland, Ricardo Leopoldo
Santillán, Graciela Edith
author_role author
author2 Boland, Ricardo Leopoldo
Santillán, Graciela Edith
author2_role author
author
dc.subject.none.fl_str_mv Atp
Mapks
P2y Receptors
Osteoblasts
Ca2+
topic Atp
Mapks
P2y Receptors
Osteoblasts
Ca2+
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv There is evidence that extracellular nucleotides, acting through multiple P2 receptors, may play an important role in the regulation of bone metabolism by activating intracellular signaling cascades. We have studied the modulation of mitogen-activated protein kinase (MAPK) signaling pathways and its relationship to changes in intracellular calcium concentration ([Ca2+]i) induced by ATP in ROS-A 17/2.8 osteoblastic cells. ATP and UTP (10 μM) increased [Ca2+]i by cation release from intracellular stores. We have found that when the cells are subsequently subjected to mechanical stress (medium perturbation), a transient calcium influx occurs. This mechanical stress-activated calcium influx (MSACI) was not observed after ADP stimulation, indicating that P2Y2 receptor activation is required for MSACI. In addition, ERK 1/2 and p38 MAPK were activated by ATP in a dose- and time-dependent manner. This activation was almost completely blocked using neomycin (2.5 mM), an inhibitor of phosphoinositide-phospholipase C (PI-PLC), Ro 318220 (1 μM), a protein kinase C (PKC) inhibitor, and PP1 (50 μM), a potent and selective inhibitor of the Src-family tyrosine kinases. Ca2+-free extracellular medium (containing 0.5 mM EGTA) and the use of gadolinium (5 μM), which suppressed MSACI, prevented ERK 1/2 and p38 phosphorylation by ATP. Altogether, these results represent the first evidence to date suggesting that P2Y2 receptor stimulation by ATP in osteoblasts sensitizes mechanical stress activated calcium channels leading to calcium influx and a fast activation of the ERK 1/2 and p38 MAPK pathways. This effect also involves upstream mediators such as PI-PLC, PKC and Src family kinases.
Fil: Katz, Sebastian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina
Fil: Boland, Ricardo Leopoldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina
Fil: Santillán, Graciela Edith. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina
description There is evidence that extracellular nucleotides, acting through multiple P2 receptors, may play an important role in the regulation of bone metabolism by activating intracellular signaling cascades. We have studied the modulation of mitogen-activated protein kinase (MAPK) signaling pathways and its relationship to changes in intracellular calcium concentration ([Ca2+]i) induced by ATP in ROS-A 17/2.8 osteoblastic cells. ATP and UTP (10 μM) increased [Ca2+]i by cation release from intracellular stores. We have found that when the cells are subsequently subjected to mechanical stress (medium perturbation), a transient calcium influx occurs. This mechanical stress-activated calcium influx (MSACI) was not observed after ADP stimulation, indicating that P2Y2 receptor activation is required for MSACI. In addition, ERK 1/2 and p38 MAPK were activated by ATP in a dose- and time-dependent manner. This activation was almost completely blocked using neomycin (2.5 mM), an inhibitor of phosphoinositide-phospholipase C (PI-PLC), Ro 318220 (1 μM), a protein kinase C (PKC) inhibitor, and PP1 (50 μM), a potent and selective inhibitor of the Src-family tyrosine kinases. Ca2+-free extracellular medium (containing 0.5 mM EGTA) and the use of gadolinium (5 μM), which suppressed MSACI, prevented ERK 1/2 and p38 phosphorylation by ATP. Altogether, these results represent the first evidence to date suggesting that P2Y2 receptor stimulation by ATP in osteoblasts sensitizes mechanical stress activated calcium channels leading to calcium influx and a fast activation of the ERK 1/2 and p38 MAPK pathways. This effect also involves upstream mediators such as PI-PLC, PKC and Src family kinases.
publishDate 2006
dc.date.none.fl_str_mv 2006-12
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/11336/81971
Katz, Sebastian; Boland, Ricardo Leopoldo; Santillán, Graciela Edith; Modulation of ERK1/2 and p38 MAPK signaling pathway by ATP in osteoblasts: involvement of mechanical stress-activated calcium influx, PKC and Src activation; Pergamon-Elsevier Science Ltd; International Journal of Biochemistry and Cellular Biology; 38; 12; 12-2006; 2082-2091
1357-2725
CONICET Digital
CONICET
url http://hdl.handle.net/11336/81971
identifier_str_mv Katz, Sebastian; Boland, Ricardo Leopoldo; Santillán, Graciela Edith; Modulation of ERK1/2 and p38 MAPK signaling pathway by ATP in osteoblasts: involvement of mechanical stress-activated calcium influx, PKC and Src activation; Pergamon-Elsevier Science Ltd; International Journal of Biochemistry and Cellular Biology; 38; 12; 12-2006; 2082-2091
1357-2725
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/S1357272506001877
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.biocel.2006.05.018
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 Pergamon-Elsevier Science Ltd
publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
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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