Different Mitogen-Mediated Beta-Adrenergic Receptor Modulation in Murine T Lymphocytes Depending on the Thyroid Status

Autores
Klecha, Alicia Juana; Barreiro Arcos, María Laura; Genaro, Ana Maria; Gorelik, Gabriela Judith; Silberman, Dafne Magalí; Caro, Ricardo; Cremaschi, Graciela Alicia
Año de publicación
2005
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
OBJECTIVE: The aim of this work was to analyze beta-adrenergic receptor (betaAR) regulation of T-lymphocyte proliferation in mice according to different thyroid hormone statuses. METHODS: T cells from eu-, hypo- (by propylthiouracil treatment) and hyperthyroid (by thyroxine, T4 administration) mice were purified and specific radioligand binding assays were performed. The effects of the beta-agonist isoproterenol (ISO) on intracellular levels of cyclic AMP (cAMP) were determined. Mitogen-induced T-cell proliferation was measured by [(3)H]-thymidine incorporation. Finally, protein kinase C (PKC) activity in cytosol and membrane fractions were determined using radiolabelled enzymatic substrates. RESULTS: Adecrease or a non-significant increase in betaAR number was found on T lymphocytes from hypo- and hyperthyroid mice compared to euthyroid controls. ISO stimulation of cAMP levels was lower in hypothyroid and higher in hyperthyroid T lymphocytes compared to controls. T-selective mitogen-induced proliferation was increased in T4-treated animals, but decreased in hypothyroid mice. During the peak of proliferation, downregulation of betaAR was observed in all animals. However, a higher or a lower decrease was observed in hyper- and hypothyroid T cells, respectively. In parallel, a higher translocation of PKC activity was observed in hyperthyroid cells, and a lower one was found in hypothyroid lymphocytes with respect to controls. CONCLUSIONS: These results indicate that intracellular signals triggered by mitogen activation, namely PKC, would be related to differential betaAR downregulation in T lymphocytes depending on the thyroid hormone status, contributing to the distinct proliferative responses found in hypo- or hyperthyroidism compared to the euthyroid state.
Fil: Klecha, Alicia Juana. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Laboratorio de Radioisótopos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Barreiro Arcos, María Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Centro de Estudios Farmacológicos y Botánicos. Universidad de Buenos Aires. Facultad de Medicina. Centro de Estudios Farmacológicos y Botánicos; Argentina
Fil: Genaro, Ana Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Centro de Estudios Farmacológicos y Botánicos. Universidad de Buenos Aires. Facultad de Medicina. Centro de Estudios Farmacológicos y Botánicos; Argentina. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Laboratorio de Radioisótopos; Argentina
Fil: Gorelik, Gabriela Judith. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Centro de Estudios Farmacológicos y Botánicos. Universidad de Buenos Aires. Facultad de Medicina. Centro de Estudios Farmacológicos y Botánicos; Argentina
Fil: Silberman, Dafne Magalí. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Centro de Estudios Farmacológicos y Botánicos. Universidad de Buenos Aires. Facultad de Medicina. Centro de Estudios Farmacológicos y Botánicos; Argentina
Fil: Caro, Ricardo. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Laboratorio de Radioisótopos; Argentina
Fil: Cremaschi, Graciela Alicia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Centro de Estudios Farmacológicos y Botánicos. Universidad de Buenos Aires. Facultad de Medicina. Centro de Estudios Farmacológicos y Botánicos; Argentina. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Laboratorio de Radioisótopos; Argentina
Materia
ß-Adrenergic receptor
Mitogen-mediated proliferation
T lymphocytes
Thyroid hormones
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:11336/242019
Acceder
id CONICETDig_52bda65f6e5f20010a4f15aed370f3d9
oai_identifier_str oai:ri.conicet.gov.ar:11336/242019
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Different Mitogen-Mediated Beta-Adrenergic Receptor Modulation in Murine T Lymphocytes Depending on the Thyroid StatusKlecha, Alicia JuanaBarreiro Arcos, María LauraGenaro, Ana MariaGorelik, Gabriela JudithSilberman, Dafne MagalíCaro, RicardoCremaschi, Graciela Aliciaß-Adrenergic receptorMitogen-mediated proliferationT lymphocytesThyroid hormoneshttps://purl.org/becyt/ford/3.1https://purl.org/becyt/ford/3OBJECTIVE: The aim of this work was to analyze beta-adrenergic receptor (betaAR) regulation of T-lymphocyte proliferation in mice according to different thyroid hormone statuses. METHODS: T cells from eu-, hypo- (by propylthiouracil treatment) and hyperthyroid (by thyroxine, T4 administration) mice were purified and specific radioligand binding assays were performed. The effects of the beta-agonist isoproterenol (ISO) on intracellular levels of cyclic AMP (cAMP) were determined. Mitogen-induced T-cell proliferation was measured by [(3)H]-thymidine incorporation. Finally, protein kinase C (PKC) activity in cytosol and membrane fractions were determined using radiolabelled enzymatic substrates. RESULTS: Adecrease or a non-significant increase in betaAR number was found on T lymphocytes from hypo- and hyperthyroid mice compared to euthyroid controls. ISO stimulation of cAMP levels was lower in hypothyroid and higher in hyperthyroid T lymphocytes compared to controls. T-selective mitogen-induced proliferation was increased in T4-treated animals, but decreased in hypothyroid mice. During the peak of proliferation, downregulation of betaAR was observed in all animals. However, a higher or a lower decrease was observed in hyper- and hypothyroid T cells, respectively. In parallel, a higher translocation of PKC activity was observed in hyperthyroid cells, and a lower one was found in hypothyroid lymphocytes with respect to controls. CONCLUSIONS: These results indicate that intracellular signals triggered by mitogen activation, namely PKC, would be related to differential betaAR downregulation in T lymphocytes depending on the thyroid hormone status, contributing to the distinct proliferative responses found in hypo- or hyperthyroidism compared to the euthyroid state.Fil: Klecha, Alicia Juana. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Laboratorio de Radioisótopos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Barreiro Arcos, María Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Centro de Estudios Farmacológicos y Botánicos. Universidad de Buenos Aires. Facultad de Medicina. Centro de Estudios Farmacológicos y Botánicos; ArgentinaFil: Genaro, Ana Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Centro de Estudios Farmacológicos y Botánicos. Universidad de Buenos Aires. Facultad de Medicina. Centro de Estudios Farmacológicos y Botánicos; Argentina. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Laboratorio de Radioisótopos; ArgentinaFil: Gorelik, Gabriela Judith. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Centro de Estudios Farmacológicos y Botánicos. Universidad de Buenos Aires. Facultad de Medicina. Centro de Estudios Farmacológicos y Botánicos; ArgentinaFil: Silberman, Dafne Magalí. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Centro de Estudios Farmacológicos y Botánicos. Universidad de Buenos Aires. Facultad de Medicina. Centro de Estudios Farmacológicos y Botánicos; ArgentinaFil: Caro, Ricardo. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Laboratorio de Radioisótopos; ArgentinaFil: Cremaschi, Graciela Alicia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Centro de Estudios Farmacológicos y Botánicos. Universidad de Buenos Aires. Facultad de Medicina. Centro de Estudios Farmacológicos y Botánicos; Argentina. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Laboratorio de Radioisótopos; ArgentinaKarger2005-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/242019Klecha, Alicia Juana; Barreiro Arcos, María Laura; Genaro, Ana Maria; Gorelik, Gabriela Judith; Silberman, Dafne Magalí; et al.; Different Mitogen-Mediated Beta-Adrenergic Receptor Modulation in Murine T Lymphocytes Depending on the Thyroid Status; Karger; NeuroImmunoModulation; 12; 2; 12-2005; 92-991021-7401CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1159/000083581info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:57:33Zoai:ri.conicet.gov.ar:11336/242019instacron: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 14:57:33.73CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Different Mitogen-Mediated Beta-Adrenergic Receptor Modulation in Murine T Lymphocytes Depending on the Thyroid Status
title Different Mitogen-Mediated Beta-Adrenergic Receptor Modulation in Murine T Lymphocytes Depending on the Thyroid Status
spellingShingle Different Mitogen-Mediated Beta-Adrenergic Receptor Modulation in Murine T Lymphocytes Depending on the Thyroid Status
Klecha, Alicia Juana
ß-Adrenergic receptor
Mitogen-mediated proliferation
T lymphocytes
Thyroid hormones
title_short Different Mitogen-Mediated Beta-Adrenergic Receptor Modulation in Murine T Lymphocytes Depending on the Thyroid Status
title_full Different Mitogen-Mediated Beta-Adrenergic Receptor Modulation in Murine T Lymphocytes Depending on the Thyroid Status
title_fullStr Different Mitogen-Mediated Beta-Adrenergic Receptor Modulation in Murine T Lymphocytes Depending on the Thyroid Status
title_full_unstemmed Different Mitogen-Mediated Beta-Adrenergic Receptor Modulation in Murine T Lymphocytes Depending on the Thyroid Status
title_sort Different Mitogen-Mediated Beta-Adrenergic Receptor Modulation in Murine T Lymphocytes Depending on the Thyroid Status
dc.creator.none.fl_str_mv Klecha, Alicia Juana
Barreiro Arcos, María Laura
Genaro, Ana Maria
Gorelik, Gabriela Judith
Silberman, Dafne Magalí
Caro, Ricardo
Cremaschi, Graciela Alicia
author Klecha, Alicia Juana
author_facet Klecha, Alicia Juana
Barreiro Arcos, María Laura
Genaro, Ana Maria
Gorelik, Gabriela Judith
Silberman, Dafne Magalí
Caro, Ricardo
Cremaschi, Graciela Alicia
author_role author
author2 Barreiro Arcos, María Laura
Genaro, Ana Maria
Gorelik, Gabriela Judith
Silberman, Dafne Magalí
Caro, Ricardo
Cremaschi, Graciela Alicia
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv ß-Adrenergic receptor
Mitogen-mediated proliferation
T lymphocytes
Thyroid hormones
topic ß-Adrenergic receptor
Mitogen-mediated proliferation
T lymphocytes
Thyroid hormones
purl_subject.fl_str_mv https://purl.org/becyt/ford/3.1
https://purl.org/becyt/ford/3
dc.description.none.fl_txt_mv OBJECTIVE: The aim of this work was to analyze beta-adrenergic receptor (betaAR) regulation of T-lymphocyte proliferation in mice according to different thyroid hormone statuses. METHODS: T cells from eu-, hypo- (by propylthiouracil treatment) and hyperthyroid (by thyroxine, T4 administration) mice were purified and specific radioligand binding assays were performed. The effects of the beta-agonist isoproterenol (ISO) on intracellular levels of cyclic AMP (cAMP) were determined. Mitogen-induced T-cell proliferation was measured by [(3)H]-thymidine incorporation. Finally, protein kinase C (PKC) activity in cytosol and membrane fractions were determined using radiolabelled enzymatic substrates. RESULTS: Adecrease or a non-significant increase in betaAR number was found on T lymphocytes from hypo- and hyperthyroid mice compared to euthyroid controls. ISO stimulation of cAMP levels was lower in hypothyroid and higher in hyperthyroid T lymphocytes compared to controls. T-selective mitogen-induced proliferation was increased in T4-treated animals, but decreased in hypothyroid mice. During the peak of proliferation, downregulation of betaAR was observed in all animals. However, a higher or a lower decrease was observed in hyper- and hypothyroid T cells, respectively. In parallel, a higher translocation of PKC activity was observed in hyperthyroid cells, and a lower one was found in hypothyroid lymphocytes with respect to controls. CONCLUSIONS: These results indicate that intracellular signals triggered by mitogen activation, namely PKC, would be related to differential betaAR downregulation in T lymphocytes depending on the thyroid hormone status, contributing to the distinct proliferative responses found in hypo- or hyperthyroidism compared to the euthyroid state.
Fil: Klecha, Alicia Juana. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Laboratorio de Radioisótopos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Barreiro Arcos, María Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Centro de Estudios Farmacológicos y Botánicos. Universidad de Buenos Aires. Facultad de Medicina. Centro de Estudios Farmacológicos y Botánicos; Argentina
Fil: Genaro, Ana Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Centro de Estudios Farmacológicos y Botánicos. Universidad de Buenos Aires. Facultad de Medicina. Centro de Estudios Farmacológicos y Botánicos; Argentina. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Laboratorio de Radioisótopos; Argentina
Fil: Gorelik, Gabriela Judith. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Centro de Estudios Farmacológicos y Botánicos. Universidad de Buenos Aires. Facultad de Medicina. Centro de Estudios Farmacológicos y Botánicos; Argentina
Fil: Silberman, Dafne Magalí. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Centro de Estudios Farmacológicos y Botánicos. Universidad de Buenos Aires. Facultad de Medicina. Centro de Estudios Farmacológicos y Botánicos; Argentina
Fil: Caro, Ricardo. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Laboratorio de Radioisótopos; Argentina
Fil: Cremaschi, Graciela Alicia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Centro de Estudios Farmacológicos y Botánicos. Universidad de Buenos Aires. Facultad de Medicina. Centro de Estudios Farmacológicos y Botánicos; Argentina. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Laboratorio de Radioisótopos; Argentina
description OBJECTIVE: The aim of this work was to analyze beta-adrenergic receptor (betaAR) regulation of T-lymphocyte proliferation in mice according to different thyroid hormone statuses. METHODS: T cells from eu-, hypo- (by propylthiouracil treatment) and hyperthyroid (by thyroxine, T4 administration) mice were purified and specific radioligand binding assays were performed. The effects of the beta-agonist isoproterenol (ISO) on intracellular levels of cyclic AMP (cAMP) were determined. Mitogen-induced T-cell proliferation was measured by [(3)H]-thymidine incorporation. Finally, protein kinase C (PKC) activity in cytosol and membrane fractions were determined using radiolabelled enzymatic substrates. RESULTS: Adecrease or a non-significant increase in betaAR number was found on T lymphocytes from hypo- and hyperthyroid mice compared to euthyroid controls. ISO stimulation of cAMP levels was lower in hypothyroid and higher in hyperthyroid T lymphocytes compared to controls. T-selective mitogen-induced proliferation was increased in T4-treated animals, but decreased in hypothyroid mice. During the peak of proliferation, downregulation of betaAR was observed in all animals. However, a higher or a lower decrease was observed in hyper- and hypothyroid T cells, respectively. In parallel, a higher translocation of PKC activity was observed in hyperthyroid cells, and a lower one was found in hypothyroid lymphocytes with respect to controls. CONCLUSIONS: These results indicate that intracellular signals triggered by mitogen activation, namely PKC, would be related to differential betaAR downregulation in T lymphocytes depending on the thyroid hormone status, contributing to the distinct proliferative responses found in hypo- or hyperthyroidism compared to the euthyroid state.
publishDate 2005
dc.date.none.fl_str_mv 2005-12
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/11336/242019
Klecha, Alicia Juana; Barreiro Arcos, María Laura; Genaro, Ana Maria; Gorelik, Gabriela Judith; Silberman, Dafne Magalí; et al.; Different Mitogen-Mediated Beta-Adrenergic Receptor Modulation in Murine T Lymphocytes Depending on the Thyroid Status; Karger; NeuroImmunoModulation; 12; 2; 12-2005; 92-99
1021-7401
CONICET Digital
CONICET
url http://hdl.handle.net/11336/242019
identifier_str_mv Klecha, Alicia Juana; Barreiro Arcos, María Laura; Genaro, Ana Maria; Gorelik, Gabriela Judith; Silberman, Dafne Magalí; et al.; Different Mitogen-Mediated Beta-Adrenergic Receptor Modulation in Murine T Lymphocytes Depending on the Thyroid Status; Karger; NeuroImmunoModulation; 12; 2; 12-2005; 92-99
1021-7401
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1159/000083581
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
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Karger
publisher.none.fl_str_mv Karger
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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