Angiotensin II requires an intact cardiac Thyrotropin-Releasing Hormone (TRH) system to Induce cardiac hypertrophy in mouse

Autores
Peres Diaz, Ludmila Soledad; Schuman, Mariano Luis; Aisicovich, Maia; Toblli, Jorge Eduardo; Pirola, Carlos José; Landa, Maria Silvina; Garcia, Silvia Ines
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Cardiac tyhrotropin-releasing hormone (TRH) is overexpressed in the hypertrophied left ventricle (LV) of spontaneously hypertensive rats (SHR) and its inhibition prevents both hypertrophy and fibrosis. In a normal heart, the TRH increase induces fibrosis and hypertrophy opening the question of whether TRH could be a common mediator of left ventricular hypertrophy (LVH). We used angiotensin II (AngII) as an inductor of LVH to evaluate if the blockade of LV-TRH prevents hypertrophy and fibrosis in mice. We challenged C57BL/6 adult male mice with an infusion of AngII (osmotic pumps; 2 mg/kg.day) to induce LVH. Groups of mice were injected with an intracardiac siRNA-TRH or scrambled siRNA (siRNA-Con). Body weight, water intake and systolic arterial blood pressure (SABP) were measured daily. AngII significantly increased water intake and SABP (p <.05). Cardiac hypertrophy (heart weight/body weight) was evident in the group with the normal cardiac TRH system. In fact, it was found an AngII-induced increase of TRH precursor mRNA (p <.05) in conjunction with elevated TRH levels measured by immunohistochemistry and western blot. These changes were not observed in the AngII + siRNA-TRH group. Furthermore, AngII increased significantly (p <.05) BNP (hypertrophic marker), collagens I and III and TGF-β (fibrosis markers) expression in the group with the native cardiac TRH system. These increases were attenuated in the groups with the TRH system blocked despite the high blood pressure. Similar and stronger results were observed “in vitro” with NIH3T3 and H9C2 cell culture models, where, when the TRH system is blocked, AngII stimulus was not able to induce the markers of its fibrotic and hypertrophic effects, so we believe that these effects are independent of any other physiological modifications. Our results point out that cardiac TRH is required for AngII-induced hypertrophic and fibrotic effects.
Fil: Peres Diaz, Ludmila Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Médicas. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Médicas; Argentina
Fil: Schuman, Mariano Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Médicas. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Médicas; Argentina
Fil: Aisicovich, Maia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Médicas. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Médicas; Argentina
Fil: Toblli, Jorge Eduardo. Hospital Aleman; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Pirola, Carlos José. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Médicas. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Médicas; Argentina
Fil: Landa, Maria Silvina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Médicas. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Médicas; Argentina
Fil: Garcia, Silvia Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Médicas. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Médicas; Argentina
Materia
ANGIOTENSIN II
CARDIAC HYPERTROPHY
H9C2
MICE
NHI3T3
SIRNA
THYROLIBERIN
TRH
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:11336/86741
Acceder
id CONICETDig_1a39ba402a77ddc692eeacebc8f723c1
oai_identifier_str oai:ri.conicet.gov.ar:11336/86741
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Angiotensin II requires an intact cardiac Thyrotropin-Releasing Hormone (TRH) system to Induce cardiac hypertrophy in mousePeres Diaz, Ludmila SoledadSchuman, Mariano LuisAisicovich, MaiaToblli, Jorge EduardoPirola, Carlos JoséLanda, Maria SilvinaGarcia, Silvia InesANGIOTENSIN IICARDIAC HYPERTROPHYH9C2MICENHI3T3SIRNATHYROLIBERINTRHhttps://purl.org/becyt/ford/3.1https://purl.org/becyt/ford/3Cardiac tyhrotropin-releasing hormone (TRH) is overexpressed in the hypertrophied left ventricle (LV) of spontaneously hypertensive rats (SHR) and its inhibition prevents both hypertrophy and fibrosis. In a normal heart, the TRH increase induces fibrosis and hypertrophy opening the question of whether TRH could be a common mediator of left ventricular hypertrophy (LVH). We used angiotensin II (AngII) as an inductor of LVH to evaluate if the blockade of LV-TRH prevents hypertrophy and fibrosis in mice. We challenged C57BL/6 adult male mice with an infusion of AngII (osmotic pumps; 2 mg/kg.day) to induce LVH. Groups of mice were injected with an intracardiac siRNA-TRH or scrambled siRNA (siRNA-Con). Body weight, water intake and systolic arterial blood pressure (SABP) were measured daily. AngII significantly increased water intake and SABP (p <.05). Cardiac hypertrophy (heart weight/body weight) was evident in the group with the normal cardiac TRH system. In fact, it was found an AngII-induced increase of TRH precursor mRNA (p <.05) in conjunction with elevated TRH levels measured by immunohistochemistry and western blot. These changes were not observed in the AngII + siRNA-TRH group. Furthermore, AngII increased significantly (p <.05) BNP (hypertrophic marker), collagens I and III and TGF-β (fibrosis markers) expression in the group with the native cardiac TRH system. These increases were attenuated in the groups with the TRH system blocked despite the high blood pressure. Similar and stronger results were observed “in vitro” with NIH3T3 and H9C2 cell culture models, where, when the TRH system is blocked, AngII stimulus was not able to induce the markers of its fibrotic and hypertrophic effects, so we believe that these effects are independent of any other physiological modifications. Our results point out that cardiac TRH is required for AngII-induced hypertrophic and fibrotic effects.Fil: Peres Diaz, Ludmila Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Médicas. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Médicas; ArgentinaFil: Schuman, Mariano Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Médicas. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Médicas; ArgentinaFil: Aisicovich, Maia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Médicas. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Médicas; ArgentinaFil: Toblli, Jorge Eduardo. Hospital Aleman; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Pirola, Carlos José. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Médicas. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Médicas; ArgentinaFil: Landa, Maria Silvina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Médicas. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Médicas; ArgentinaFil: Garcia, Silvia Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Médicas. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Médicas; ArgentinaAcademic Press Ltd - Elsevier Science Ltd2018-11info: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/11336/86741Peres Diaz, Ludmila Soledad; Schuman, Mariano Luis; Aisicovich, Maia; Toblli, Jorge Eduardo; Pirola, Carlos José; et al.; Angiotensin II requires an intact cardiac Thyrotropin-Releasing Hormone (TRH) system to Induce cardiac hypertrophy in mouse; Academic Press Ltd - Elsevier Science Ltd; Journal of Molecular and Cellular Cardiology; 124; 11-2018; 1-110022-2828CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S002228281830957Xinfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.yjmcc.2018.09.009info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:49:52Zoai:ri.conicet.gov.ar:11336/86741instacron: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 09:49:52.354CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Angiotensin II requires an intact cardiac Thyrotropin-Releasing Hormone (TRH) system to Induce cardiac hypertrophy in mouse
title Angiotensin II requires an intact cardiac Thyrotropin-Releasing Hormone (TRH) system to Induce cardiac hypertrophy in mouse
spellingShingle Angiotensin II requires an intact cardiac Thyrotropin-Releasing Hormone (TRH) system to Induce cardiac hypertrophy in mouse
Peres Diaz, Ludmila Soledad
ANGIOTENSIN II
CARDIAC HYPERTROPHY
H9C2
MICE
NHI3T3
SIRNA
THYROLIBERIN
TRH
title_short Angiotensin II requires an intact cardiac Thyrotropin-Releasing Hormone (TRH) system to Induce cardiac hypertrophy in mouse
title_full Angiotensin II requires an intact cardiac Thyrotropin-Releasing Hormone (TRH) system to Induce cardiac hypertrophy in mouse
title_fullStr Angiotensin II requires an intact cardiac Thyrotropin-Releasing Hormone (TRH) system to Induce cardiac hypertrophy in mouse
title_full_unstemmed Angiotensin II requires an intact cardiac Thyrotropin-Releasing Hormone (TRH) system to Induce cardiac hypertrophy in mouse
title_sort Angiotensin II requires an intact cardiac Thyrotropin-Releasing Hormone (TRH) system to Induce cardiac hypertrophy in mouse
dc.creator.none.fl_str_mv Peres Diaz, Ludmila Soledad
Schuman, Mariano Luis
Aisicovich, Maia
Toblli, Jorge Eduardo
Pirola, Carlos José
Landa, Maria Silvina
Garcia, Silvia Ines
author Peres Diaz, Ludmila Soledad
author_facet Peres Diaz, Ludmila Soledad
Schuman, Mariano Luis
Aisicovich, Maia
Toblli, Jorge Eduardo
Pirola, Carlos José
Landa, Maria Silvina
Garcia, Silvia Ines
author_role author
author2 Schuman, Mariano Luis
Aisicovich, Maia
Toblli, Jorge Eduardo
Pirola, Carlos José
Landa, Maria Silvina
Garcia, Silvia Ines
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv ANGIOTENSIN II
CARDIAC HYPERTROPHY
H9C2
MICE
NHI3T3
SIRNA
THYROLIBERIN
TRH
topic ANGIOTENSIN II
CARDIAC HYPERTROPHY
H9C2
MICE
NHI3T3
SIRNA
THYROLIBERIN
TRH
purl_subject.fl_str_mv https://purl.org/becyt/ford/3.1
https://purl.org/becyt/ford/3
dc.description.none.fl_txt_mv Cardiac tyhrotropin-releasing hormone (TRH) is overexpressed in the hypertrophied left ventricle (LV) of spontaneously hypertensive rats (SHR) and its inhibition prevents both hypertrophy and fibrosis. In a normal heart, the TRH increase induces fibrosis and hypertrophy opening the question of whether TRH could be a common mediator of left ventricular hypertrophy (LVH). We used angiotensin II (AngII) as an inductor of LVH to evaluate if the blockade of LV-TRH prevents hypertrophy and fibrosis in mice. We challenged C57BL/6 adult male mice with an infusion of AngII (osmotic pumps; 2 mg/kg.day) to induce LVH. Groups of mice were injected with an intracardiac siRNA-TRH or scrambled siRNA (siRNA-Con). Body weight, water intake and systolic arterial blood pressure (SABP) were measured daily. AngII significantly increased water intake and SABP (p <.05). Cardiac hypertrophy (heart weight/body weight) was evident in the group with the normal cardiac TRH system. In fact, it was found an AngII-induced increase of TRH precursor mRNA (p <.05) in conjunction with elevated TRH levels measured by immunohistochemistry and western blot. These changes were not observed in the AngII + siRNA-TRH group. Furthermore, AngII increased significantly (p <.05) BNP (hypertrophic marker), collagens I and III and TGF-β (fibrosis markers) expression in the group with the native cardiac TRH system. These increases were attenuated in the groups with the TRH system blocked despite the high blood pressure. Similar and stronger results were observed “in vitro” with NIH3T3 and H9C2 cell culture models, where, when the TRH system is blocked, AngII stimulus was not able to induce the markers of its fibrotic and hypertrophic effects, so we believe that these effects are independent of any other physiological modifications. Our results point out that cardiac TRH is required for AngII-induced hypertrophic and fibrotic effects.
Fil: Peres Diaz, Ludmila Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Médicas. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Médicas; Argentina
Fil: Schuman, Mariano Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Médicas. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Médicas; Argentina
Fil: Aisicovich, Maia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Médicas. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Médicas; Argentina
Fil: Toblli, Jorge Eduardo. Hospital Aleman; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Pirola, Carlos José. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Médicas. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Médicas; Argentina
Fil: Landa, Maria Silvina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Médicas. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Médicas; Argentina
Fil: Garcia, Silvia Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Médicas. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Médicas; Argentina
description Cardiac tyhrotropin-releasing hormone (TRH) is overexpressed in the hypertrophied left ventricle (LV) of spontaneously hypertensive rats (SHR) and its inhibition prevents both hypertrophy and fibrosis. In a normal heart, the TRH increase induces fibrosis and hypertrophy opening the question of whether TRH could be a common mediator of left ventricular hypertrophy (LVH). We used angiotensin II (AngII) as an inductor of LVH to evaluate if the blockade of LV-TRH prevents hypertrophy and fibrosis in mice. We challenged C57BL/6 adult male mice with an infusion of AngII (osmotic pumps; 2 mg/kg.day) to induce LVH. Groups of mice were injected with an intracardiac siRNA-TRH or scrambled siRNA (siRNA-Con). Body weight, water intake and systolic arterial blood pressure (SABP) were measured daily. AngII significantly increased water intake and SABP (p <.05). Cardiac hypertrophy (heart weight/body weight) was evident in the group with the normal cardiac TRH system. In fact, it was found an AngII-induced increase of TRH precursor mRNA (p <.05) in conjunction with elevated TRH levels measured by immunohistochemistry and western blot. These changes were not observed in the AngII + siRNA-TRH group. Furthermore, AngII increased significantly (p <.05) BNP (hypertrophic marker), collagens I and III and TGF-β (fibrosis markers) expression in the group with the native cardiac TRH system. These increases were attenuated in the groups with the TRH system blocked despite the high blood pressure. Similar and stronger results were observed “in vitro” with NIH3T3 and H9C2 cell culture models, where, when the TRH system is blocked, AngII stimulus was not able to induce the markers of its fibrotic and hypertrophic effects, so we believe that these effects are independent of any other physiological modifications. Our results point out that cardiac TRH is required for AngII-induced hypertrophic and fibrotic effects.
publishDate 2018
dc.date.none.fl_str_mv 2018-11
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/11336/86741
Peres Diaz, Ludmila Soledad; Schuman, Mariano Luis; Aisicovich, Maia; Toblli, Jorge Eduardo; Pirola, Carlos José; et al.; Angiotensin II requires an intact cardiac Thyrotropin-Releasing Hormone (TRH) system to Induce cardiac hypertrophy in mouse; Academic Press Ltd - Elsevier Science Ltd; Journal of Molecular and Cellular Cardiology; 124; 11-2018; 1-11
0022-2828
CONICET Digital
CONICET
url http://hdl.handle.net/11336/86741
identifier_str_mv Peres Diaz, Ludmila Soledad; Schuman, Mariano Luis; Aisicovich, Maia; Toblli, Jorge Eduardo; Pirola, Carlos José; et al.; Angiotensin II requires an intact cardiac Thyrotropin-Releasing Hormone (TRH) system to Induce cardiac hypertrophy in mouse; Academic Press Ltd - Elsevier Science Ltd; Journal of Molecular and Cellular Cardiology; 124; 11-2018; 1-11
0022-2828
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/S002228281830957X
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.yjmcc.2018.09.009
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 Academic Press Ltd - Elsevier Science Ltd
publisher.none.fl_str_mv Academic Press Ltd - 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 13.070432

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