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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/81971
Ver los metadatos del registro completo
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CONICET Digital (CONICET) |
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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 Técnicas2025-09-29T10:15:53Zoai: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:34982025-09-29 10:15:53.604CONICET 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 |
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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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1844614098434654208 |
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13.070432 |