Myristoylated alanine-rich C kinase substrate phosphorylation is involved in thrombin-induced serotonin release from platelets
- Autores
- Elzagallaai, A.; Rosé, S. D.; Brandan, Nora Cristina; Trifaro, J. M.
- Año de publicación
- 2001
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Stimulation of platelets by thrombin induces protein kinase C (PKC) activation, phosphorylation of pleckstrin, aggregation and serotonin release. Here, we demonstrate that, in human platelets, thrombin stimulation also induced phosphorylation of the myristoylated alanine-rich C Kinase substrate (MARCKS) and serotonine release in intact and digitonin-permeabilized platelets. MARKS is known to bind actin and cross-link actin filaments, and this is inhibited by PKC-evoqued MARKS phosphorylation. MARKS phosphorylation and serotonin release in response to increasing concentration of thrombin have a similar EC 50 and time course and, in permeabilized platelets, peptide MPSD, with an amino sequence corresponding to the phosphorylation site domain of MARKS, bloked both responses. However, pleckstrin and myosin light chain phosphorylations were not modified. Ala-MPSD, in which the four serine residues of MPSD were substituted by alanines was ineffective. The results suggest a role for MARKS in platelet secretion. The fact that pleckstrin phosphorylation has different time course and was not modified in the presence of MPSD when MARCKS phosphorylation and serotonine release were inhibited would suggest either that pleckstrin phosphorylation is unrelated to secretion or that it might only be involved upstream in the events leading to secretion.
Fil: Elzagallaai, A.. University of Ottawa; Canadá
Fil: Rosé, S. D.. University of Ottawa; Canadá
Fil: Brandan, Nora Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste; Argentina. University of Ottawa; Canadá
Fil: Trifaro, J. M.. University of Ottawa; Canadá - Materia
-
Platelets
Thrombin
Markcks
Secretion
Serotonin - 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:11336/29595
Ver los metadatos del registro completo
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Myristoylated alanine-rich C kinase substrate phosphorylation is involved in thrombin-induced serotonin release from plateletsElzagallaai, A.Rosé, S. D.Brandan, Nora CristinaTrifaro, J. M.PlateletsThrombinMarkcksSecretionSerotoninhttps://purl.org/becyt/ford/3.1https://purl.org/becyt/ford/3Stimulation of platelets by thrombin induces protein kinase C (PKC) activation, phosphorylation of pleckstrin, aggregation and serotonin release. Here, we demonstrate that, in human platelets, thrombin stimulation also induced phosphorylation of the myristoylated alanine-rich C Kinase substrate (MARCKS) and serotonine release in intact and digitonin-permeabilized platelets. MARKS is known to bind actin and cross-link actin filaments, and this is inhibited by PKC-evoqued MARKS phosphorylation. MARKS phosphorylation and serotonin release in response to increasing concentration of thrombin have a similar EC 50 and time course and, in permeabilized platelets, peptide MPSD, with an amino sequence corresponding to the phosphorylation site domain of MARKS, bloked both responses. However, pleckstrin and myosin light chain phosphorylations were not modified. Ala-MPSD, in which the four serine residues of MPSD were substituted by alanines was ineffective. The results suggest a role for MARKS in platelet secretion. The fact that pleckstrin phosphorylation has different time course and was not modified in the presence of MPSD when MARCKS phosphorylation and serotonine release were inhibited would suggest either that pleckstrin phosphorylation is unrelated to secretion or that it might only be involved upstream in the events leading to secretion.Fil: Elzagallaai, A.. University of Ottawa; CanadáFil: Rosé, S. D.. University of Ottawa; CanadáFil: Brandan, Nora Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste; Argentina. University of Ottawa; CanadáFil: Trifaro, J. M.. University of Ottawa; CanadáWiley2001-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/29595Elzagallaai, A.; Rosé, S. D.; Brandan, Nora Cristina; Trifaro, J. M.; Myristoylated alanine-rich C kinase substrate phosphorylation is involved in thrombin-induced serotonin release from platelets; Wiley; British Journal of Haematology; 112; 3; 12-2001; 593-6020007-10481365-2141CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1046/j.1365-2141.2001.02642.xinfo:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1046/j.1365-2141.2001.02642.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 Técnicas2025-09-29T10:19:09Zoai:ri.conicet.gov.ar:11336/29595instacron: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 10:19:09.293CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Myristoylated alanine-rich C kinase substrate phosphorylation is involved in thrombin-induced serotonin release from platelets |
title |
Myristoylated alanine-rich C kinase substrate phosphorylation is involved in thrombin-induced serotonin release from platelets |
spellingShingle |
Myristoylated alanine-rich C kinase substrate phosphorylation is involved in thrombin-induced serotonin release from platelets Elzagallaai, A. Platelets Thrombin Markcks Secretion Serotonin |
title_short |
Myristoylated alanine-rich C kinase substrate phosphorylation is involved in thrombin-induced serotonin release from platelets |
title_full |
Myristoylated alanine-rich C kinase substrate phosphorylation is involved in thrombin-induced serotonin release from platelets |
title_fullStr |
Myristoylated alanine-rich C kinase substrate phosphorylation is involved in thrombin-induced serotonin release from platelets |
title_full_unstemmed |
Myristoylated alanine-rich C kinase substrate phosphorylation is involved in thrombin-induced serotonin release from platelets |
title_sort |
Myristoylated alanine-rich C kinase substrate phosphorylation is involved in thrombin-induced serotonin release from platelets |
dc.creator.none.fl_str_mv |
Elzagallaai, A. Rosé, S. D. Brandan, Nora Cristina Trifaro, J. M. |
author |
Elzagallaai, A. |
author_facet |
Elzagallaai, A. Rosé, S. D. Brandan, Nora Cristina Trifaro, J. M. |
author_role |
author |
author2 |
Rosé, S. D. Brandan, Nora Cristina Trifaro, J. M. |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
Platelets Thrombin Markcks Secretion Serotonin |
topic |
Platelets Thrombin Markcks Secretion Serotonin |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/3.1 https://purl.org/becyt/ford/3 |
dc.description.none.fl_txt_mv |
Stimulation of platelets by thrombin induces protein kinase C (PKC) activation, phosphorylation of pleckstrin, aggregation and serotonin release. Here, we demonstrate that, in human platelets, thrombin stimulation also induced phosphorylation of the myristoylated alanine-rich C Kinase substrate (MARCKS) and serotonine release in intact and digitonin-permeabilized platelets. MARKS is known to bind actin and cross-link actin filaments, and this is inhibited by PKC-evoqued MARKS phosphorylation. MARKS phosphorylation and serotonin release in response to increasing concentration of thrombin have a similar EC 50 and time course and, in permeabilized platelets, peptide MPSD, with an amino sequence corresponding to the phosphorylation site domain of MARKS, bloked both responses. However, pleckstrin and myosin light chain phosphorylations were not modified. Ala-MPSD, in which the four serine residues of MPSD were substituted by alanines was ineffective. The results suggest a role for MARKS in platelet secretion. The fact that pleckstrin phosphorylation has different time course and was not modified in the presence of MPSD when MARCKS phosphorylation and serotonine release were inhibited would suggest either that pleckstrin phosphorylation is unrelated to secretion or that it might only be involved upstream in the events leading to secretion. Fil: Elzagallaai, A.. University of Ottawa; Canadá Fil: Rosé, S. D.. University of Ottawa; Canadá Fil: Brandan, Nora Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste; Argentina. University of Ottawa; Canadá Fil: Trifaro, J. M.. University of Ottawa; Canadá |
description |
Stimulation of platelets by thrombin induces protein kinase C (PKC) activation, phosphorylation of pleckstrin, aggregation and serotonin release. Here, we demonstrate that, in human platelets, thrombin stimulation also induced phosphorylation of the myristoylated alanine-rich C Kinase substrate (MARCKS) and serotonine release in intact and digitonin-permeabilized platelets. MARKS is known to bind actin and cross-link actin filaments, and this is inhibited by PKC-evoqued MARKS phosphorylation. MARKS phosphorylation and serotonin release in response to increasing concentration of thrombin have a similar EC 50 and time course and, in permeabilized platelets, peptide MPSD, with an amino sequence corresponding to the phosphorylation site domain of MARKS, bloked both responses. However, pleckstrin and myosin light chain phosphorylations were not modified. Ala-MPSD, in which the four serine residues of MPSD were substituted by alanines was ineffective. The results suggest a role for MARKS in platelet secretion. The fact that pleckstrin phosphorylation has different time course and was not modified in the presence of MPSD when MARCKS phosphorylation and serotonine release were inhibited would suggest either that pleckstrin phosphorylation is unrelated to secretion or that it might only be involved upstream in the events leading to secretion. |
publishDate |
2001 |
dc.date.none.fl_str_mv |
2001-12 |
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/11336/29595 Elzagallaai, A.; Rosé, S. D.; Brandan, Nora Cristina; Trifaro, J. M.; Myristoylated alanine-rich C kinase substrate phosphorylation is involved in thrombin-induced serotonin release from platelets; Wiley; British Journal of Haematology; 112; 3; 12-2001; 593-602 0007-1048 1365-2141 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/29595 |
identifier_str_mv |
Elzagallaai, A.; Rosé, S. D.; Brandan, Nora Cristina; Trifaro, J. M.; Myristoylated alanine-rich C kinase substrate phosphorylation is involved in thrombin-induced serotonin release from platelets; Wiley; British Journal of Haematology; 112; 3; 12-2001; 593-602 0007-1048 1365-2141 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1046/j.1365-2141.2001.02642.x info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1046/j.1365-2141.2001.02642.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 |
Wiley |
publisher.none.fl_str_mv |
Wiley |
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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1844614160386621440 |
score |
13.070432 |