Pro-apoptotic effects of parathyroid hormone in intestinal cells
- Autores
- Calvo, Natalia Graciela; Russo, Ana Josefa; Gentili, Claudia Rosana
- Año de publicación
- 2009
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Apoptosis, a form of programmed cell death, is a process fundamental to normal growth and development, immune response, tissue remodeling after injury or insult, and homeostasis of the intestinal epithelium. Recently, it has become apparent that apoptosis is a crucial process in skeletal development and homeostasis, and that signaling by the parathyroid hormone (PTH) receptor can either promote or suppress apoptosis depending on the cellular context. In this study, we evaluate the role of PTH in the intestinal apoptosis using the human colonic Caco-2 cells. To that end, Caco-2 cells were exposed to PTH (10-8 mol/L) for 1-5 days. Evaluation of the cell survival by use of resazurin staining, 3-(4,5-dimethylthiazol-2-yl) -5-(3-carboxymethoxyphenyl) -2-(4-sulfophenyl)-2H-tetrazolium (MTS) staining, and crystal violet staining revealed that PTH treatment diminishes the number of viable cells. Assessment of cells after PTH treatment by used of propidium iodide shows that the hormone increases the number of red-stained (dead) cells (+ 178%, 5 days). Moreover, we found that the hormone induces disruption of actin filaments with changes to cellular shape, alteration of cell-to-cell junctions, externalization of membrane phosphatidylserine, chromatin condensation, and DNA fragmentation of the nucleus, which morphological features consistent with apoptosis. In addition, PTH treatment revealed a cytosolic staining pattern of 14-3-3. However, the significance of such differential localization for 14-3-3 function remains unknown. Taken together, the present study suggests that PTH promotes apoptosis in Caco-2 intestinal cells.
Fil: Calvo, Natalia Graciela. 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: Russo, Ana Josefa. 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: Gentili, Claudia Rosana. 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
-
Apoptosis
Caco-2 Cells
Parathyroid Hormone - 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:11336/43022
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Pro-apoptotic effects of parathyroid hormone in intestinal cellsCalvo, Natalia GracielaRusso, Ana JosefaGentili, Claudia RosanaApoptosisCaco-2 CellsParathyroid Hormonehttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Apoptosis, a form of programmed cell death, is a process fundamental to normal growth and development, immune response, tissue remodeling after injury or insult, and homeostasis of the intestinal epithelium. Recently, it has become apparent that apoptosis is a crucial process in skeletal development and homeostasis, and that signaling by the parathyroid hormone (PTH) receptor can either promote or suppress apoptosis depending on the cellular context. In this study, we evaluate the role of PTH in the intestinal apoptosis using the human colonic Caco-2 cells. To that end, Caco-2 cells were exposed to PTH (10-8 mol/L) for 1-5 days. Evaluation of the cell survival by use of resazurin staining, 3-(4,5-dimethylthiazol-2-yl) -5-(3-carboxymethoxyphenyl) -2-(4-sulfophenyl)-2H-tetrazolium (MTS) staining, and crystal violet staining revealed that PTH treatment diminishes the number of viable cells. Assessment of cells after PTH treatment by used of propidium iodide shows that the hormone increases the number of red-stained (dead) cells (+ 178%, 5 days). Moreover, we found that the hormone induces disruption of actin filaments with changes to cellular shape, alteration of cell-to-cell junctions, externalization of membrane phosphatidylserine, chromatin condensation, and DNA fragmentation of the nucleus, which morphological features consistent with apoptosis. In addition, PTH treatment revealed a cytosolic staining pattern of 14-3-3. However, the significance of such differential localization for 14-3-3 function remains unknown. Taken together, the present study suggests that PTH promotes apoptosis in Caco-2 intestinal cells.Fil: Calvo, Natalia Graciela. 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: Russo, Ana Josefa. 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: Gentili, Claudia Rosana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; ArgentinaNational Research Council Canada-NRC Research Press2009-03-20info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/43022Calvo, Natalia Graciela; Russo, Ana Josefa; Gentili, Claudia Rosana; Pro-apoptotic effects of parathyroid hormone in intestinal cells; National Research Council Canada-NRC Research Press; Biochemistry and Cell Biology; 87; 2; 20-3-2009; 389-4000829-82111208-6002CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.nrcresearchpress.com/doi/abs/10.1139/O08-143#.WtTb4S7wbIUinfo:eu-repo/semantics/altIdentifier/doi/10.1139/O08-143info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:17:34Zoai:ri.conicet.gov.ar:11336/43022instacron: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 10:17:34.611CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Pro-apoptotic effects of parathyroid hormone in intestinal cells |
title |
Pro-apoptotic effects of parathyroid hormone in intestinal cells |
spellingShingle |
Pro-apoptotic effects of parathyroid hormone in intestinal cells Calvo, Natalia Graciela Apoptosis Caco-2 Cells Parathyroid Hormone |
title_short |
Pro-apoptotic effects of parathyroid hormone in intestinal cells |
title_full |
Pro-apoptotic effects of parathyroid hormone in intestinal cells |
title_fullStr |
Pro-apoptotic effects of parathyroid hormone in intestinal cells |
title_full_unstemmed |
Pro-apoptotic effects of parathyroid hormone in intestinal cells |
title_sort |
Pro-apoptotic effects of parathyroid hormone in intestinal cells |
dc.creator.none.fl_str_mv |
Calvo, Natalia Graciela Russo, Ana Josefa Gentili, Claudia Rosana |
author |
Calvo, Natalia Graciela |
author_facet |
Calvo, Natalia Graciela Russo, Ana Josefa Gentili, Claudia Rosana |
author_role |
author |
author2 |
Russo, Ana Josefa Gentili, Claudia Rosana |
author2_role |
author author |
dc.subject.none.fl_str_mv |
Apoptosis Caco-2 Cells Parathyroid Hormone |
topic |
Apoptosis Caco-2 Cells Parathyroid Hormone |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Apoptosis, a form of programmed cell death, is a process fundamental to normal growth and development, immune response, tissue remodeling after injury or insult, and homeostasis of the intestinal epithelium. Recently, it has become apparent that apoptosis is a crucial process in skeletal development and homeostasis, and that signaling by the parathyroid hormone (PTH) receptor can either promote or suppress apoptosis depending on the cellular context. In this study, we evaluate the role of PTH in the intestinal apoptosis using the human colonic Caco-2 cells. To that end, Caco-2 cells were exposed to PTH (10-8 mol/L) for 1-5 days. Evaluation of the cell survival by use of resazurin staining, 3-(4,5-dimethylthiazol-2-yl) -5-(3-carboxymethoxyphenyl) -2-(4-sulfophenyl)-2H-tetrazolium (MTS) staining, and crystal violet staining revealed that PTH treatment diminishes the number of viable cells. Assessment of cells after PTH treatment by used of propidium iodide shows that the hormone increases the number of red-stained (dead) cells (+ 178%, 5 days). Moreover, we found that the hormone induces disruption of actin filaments with changes to cellular shape, alteration of cell-to-cell junctions, externalization of membrane phosphatidylserine, chromatin condensation, and DNA fragmentation of the nucleus, which morphological features consistent with apoptosis. In addition, PTH treatment revealed a cytosolic staining pattern of 14-3-3. However, the significance of such differential localization for 14-3-3 function remains unknown. Taken together, the present study suggests that PTH promotes apoptosis in Caco-2 intestinal cells. Fil: Calvo, Natalia Graciela. 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: Russo, Ana Josefa. 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: Gentili, Claudia Rosana. 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 |
Apoptosis, a form of programmed cell death, is a process fundamental to normal growth and development, immune response, tissue remodeling after injury or insult, and homeostasis of the intestinal epithelium. Recently, it has become apparent that apoptosis is a crucial process in skeletal development and homeostasis, and that signaling by the parathyroid hormone (PTH) receptor can either promote or suppress apoptosis depending on the cellular context. In this study, we evaluate the role of PTH in the intestinal apoptosis using the human colonic Caco-2 cells. To that end, Caco-2 cells were exposed to PTH (10-8 mol/L) for 1-5 days. Evaluation of the cell survival by use of resazurin staining, 3-(4,5-dimethylthiazol-2-yl) -5-(3-carboxymethoxyphenyl) -2-(4-sulfophenyl)-2H-tetrazolium (MTS) staining, and crystal violet staining revealed that PTH treatment diminishes the number of viable cells. Assessment of cells after PTH treatment by used of propidium iodide shows that the hormone increases the number of red-stained (dead) cells (+ 178%, 5 days). Moreover, we found that the hormone induces disruption of actin filaments with changes to cellular shape, alteration of cell-to-cell junctions, externalization of membrane phosphatidylserine, chromatin condensation, and DNA fragmentation of the nucleus, which morphological features consistent with apoptosis. In addition, PTH treatment revealed a cytosolic staining pattern of 14-3-3. However, the significance of such differential localization for 14-3-3 function remains unknown. Taken together, the present study suggests that PTH promotes apoptosis in Caco-2 intestinal cells. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-03-20 |
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/11336/43022 Calvo, Natalia Graciela; Russo, Ana Josefa; Gentili, Claudia Rosana; Pro-apoptotic effects of parathyroid hormone in intestinal cells; National Research Council Canada-NRC Research Press; Biochemistry and Cell Biology; 87; 2; 20-3-2009; 389-400 0829-8211 1208-6002 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/43022 |
identifier_str_mv |
Calvo, Natalia Graciela; Russo, Ana Josefa; Gentili, Claudia Rosana; Pro-apoptotic effects of parathyroid hormone in intestinal cells; National Research Council Canada-NRC Research Press; Biochemistry and Cell Biology; 87; 2; 20-3-2009; 389-400 0829-8211 1208-6002 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/http://www.nrcresearchpress.com/doi/abs/10.1139/O08-143#.WtTb4S7wbIU info:eu-repo/semantics/altIdentifier/doi/10.1139/O08-143 |
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 |
dc.publisher.none.fl_str_mv |
National Research Council Canada-NRC Research Press |
publisher.none.fl_str_mv |
National Research Council Canada-NRC Research Press |
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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1844614129150590976 |
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13.070432 |