Menadione and iron overload trigger neutral lipid remodelling in adipocytes and adipose tissue
- Autores
- Funk, Melania Iara; Maniscalchi, Athina; Benzi Juncos, Oriana Nicole; Alza, Natalia Paola; Conde, Melisa Ailén; Salvador, Gabriela Alejandra; Uranga, Romina Maria
- Año de publicación
- 2021
- Idioma
- inglés
- Tipo de recurso
- documento de conferencia
- Estado
- versión publicada
- Descripción
- A growing body of evidence indicates that oxidative stress (OS) can cause an increase in preadipocyte proliferation, and adipocyte differentiation. However, the biochemical mechanisms by which OS alters adipocyte neutral lipid metabolism are not completely elucidated. Menadione and iron (Fe) overload are well known OS enhancers through the induction of Fenton and Haber-Weiss reactions. We have previously demonstrated that menadione exposure (20 and 50 µM) in differentiated 3T3- L1 adipocytes results in increased cell oxidant levels and downregulation of adipogenic genes and transcription factors. In this work, our goal was to investigate the effect of menadione and Fe overload in neutral lipid metabolism both in adipocyte cell culture and by using an in vivo model. For this purpose, we worked with differentiated adipocytes challenged with menadione and C57BL/6 mice exposed to Fe overload. Differentiated 3T3-L1 adipocytes were exposed to menadione for 24 h, and then neutral lipid profile was analyzed. For the in vivo OS model, Fe-saccharate (800 or 1332 mg/kg) or vehicle were administered by intraperitoneal injection (four-dose scheme in 16 days). Plasma, visceral and gonadal adipose tissue obtained from Fetreated animals and controls were used to determine OS markers and neutral lipids. In mice, lipid peroxide levels and conjugated dienes derived from fatty acid oxidation were increased in visceral and gonadal adipose tissue after Fe treatment. No changes were detected in catalase activity. Moreover, OS markers from plasma were also augmented by Fe-overload. We found that menadione-induced OS increased triglyceride content and activated lipolysis in adipocytes. Intriguingly, monoacylglycerol and diacylglycerol levels were decreased, and no difference was observed in triacylglycerol levels in Feoverloaded mice. Fe treatment caused a diminution in wet weight of both gonadal and visceral adipose tissues when compared to control animals. Consequently, the ratio triacylglycerol/g wet tissue was increased by the effect of OS. Together, our results demonstrate that different OS inducers promote an active remodeling of neutral lipids in adipose tissue.
Fil: Funk, Melania Iara. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina
Fil: Maniscalchi, Athina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; Argentina
Fil: Benzi Juncos, Oriana Nicole. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina
Fil: Alza, Natalia Paola. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Química; Argentina
Fil: Conde, Melisa Ailén. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina
Fil: Salvador, Gabriela Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina
Fil: Uranga, Romina Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina
LVII Annual Meeting of the Argentine Society for Biochemistry and Molecular Biology Research (SAIB), XVI Annual Meeting of the Argentinean Society for General Microbiology (SAMIGE)
Mendoza
Argentina
Sociedad Argentina de Investigación Bioquímica y Biología Molecular
Sociedad Argentina de Microbiología General - Materia
-
Oxidative stress
lipid remodeling
adipocyte - 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:11336/195359
Ver los metadatos del registro completo
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Menadione and iron overload trigger neutral lipid remodelling in adipocytes and adipose tissueFunk, Melania IaraManiscalchi, AthinaBenzi Juncos, Oriana NicoleAlza, Natalia PaolaConde, Melisa AilénSalvador, Gabriela AlejandraUranga, Romina MariaOxidative stresslipid remodelingadipocytehttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1A growing body of evidence indicates that oxidative stress (OS) can cause an increase in preadipocyte proliferation, and adipocyte differentiation. However, the biochemical mechanisms by which OS alters adipocyte neutral lipid metabolism are not completely elucidated. Menadione and iron (Fe) overload are well known OS enhancers through the induction of Fenton and Haber-Weiss reactions. We have previously demonstrated that menadione exposure (20 and 50 µM) in differentiated 3T3- L1 adipocytes results in increased cell oxidant levels and downregulation of adipogenic genes and transcription factors. In this work, our goal was to investigate the effect of menadione and Fe overload in neutral lipid metabolism both in adipocyte cell culture and by using an in vivo model. For this purpose, we worked with differentiated adipocytes challenged with menadione and C57BL/6 mice exposed to Fe overload. Differentiated 3T3-L1 adipocytes were exposed to menadione for 24 h, and then neutral lipid profile was analyzed. For the in vivo OS model, Fe-saccharate (800 or 1332 mg/kg) or vehicle were administered by intraperitoneal injection (four-dose scheme in 16 days). Plasma, visceral and gonadal adipose tissue obtained from Fetreated animals and controls were used to determine OS markers and neutral lipids. In mice, lipid peroxide levels and conjugated dienes derived from fatty acid oxidation were increased in visceral and gonadal adipose tissue after Fe treatment. No changes were detected in catalase activity. Moreover, OS markers from plasma were also augmented by Fe-overload. We found that menadione-induced OS increased triglyceride content and activated lipolysis in adipocytes. Intriguingly, monoacylglycerol and diacylglycerol levels were decreased, and no difference was observed in triacylglycerol levels in Feoverloaded mice. Fe treatment caused a diminution in wet weight of both gonadal and visceral adipose tissues when compared to control animals. Consequently, the ratio triacylglycerol/g wet tissue was increased by the effect of OS. Together, our results demonstrate that different OS inducers promote an active remodeling of neutral lipids in adipose tissue.Fil: Funk, Melania Iara. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; ArgentinaFil: Maniscalchi, Athina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; ArgentinaFil: Benzi Juncos, Oriana Nicole. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; ArgentinaFil: Alza, Natalia Paola. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Química; ArgentinaFil: Conde, Melisa Ailén. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; ArgentinaFil: Salvador, Gabriela Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; ArgentinaFil: Uranga, Romina Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; ArgentinaLVII Annual Meeting of the Argentine Society for Biochemistry and Molecular Biology Research (SAIB), XVI Annual Meeting of the Argentinean Society for General Microbiology (SAMIGE)MendozaArgentinaSociedad Argentina de Investigación Bioquímica y Biología MolecularSociedad Argentina de Microbiología GeneralTech Science Press2021info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectReuniónJournalhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/195359Menadione and iron overload trigger neutral lipid remodelling in adipocytes and adipose tissue; LVII Annual Meeting of the Argentine Society for Biochemistry and Molecular Biology Research (SAIB), XVI Annual Meeting of the Argentinean Society for General Microbiology (SAMIGE); Mendoza; Argentina; 2021; 87-870327-95451667-5746CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://techscience.com/biocell/v46nSuppl.1/46213Nacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:53:48Zoai:ri.conicet.gov.ar:11336/195359instacron: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:34982025-09-03 09:53:49.089CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Menadione and iron overload trigger neutral lipid remodelling in adipocytes and adipose tissue |
title |
Menadione and iron overload trigger neutral lipid remodelling in adipocytes and adipose tissue |
spellingShingle |
Menadione and iron overload trigger neutral lipid remodelling in adipocytes and adipose tissue Funk, Melania Iara Oxidative stress lipid remodeling adipocyte |
title_short |
Menadione and iron overload trigger neutral lipid remodelling in adipocytes and adipose tissue |
title_full |
Menadione and iron overload trigger neutral lipid remodelling in adipocytes and adipose tissue |
title_fullStr |
Menadione and iron overload trigger neutral lipid remodelling in adipocytes and adipose tissue |
title_full_unstemmed |
Menadione and iron overload trigger neutral lipid remodelling in adipocytes and adipose tissue |
title_sort |
Menadione and iron overload trigger neutral lipid remodelling in adipocytes and adipose tissue |
dc.creator.none.fl_str_mv |
Funk, Melania Iara Maniscalchi, Athina Benzi Juncos, Oriana Nicole Alza, Natalia Paola Conde, Melisa Ailén Salvador, Gabriela Alejandra Uranga, Romina Maria |
author |
Funk, Melania Iara |
author_facet |
Funk, Melania Iara Maniscalchi, Athina Benzi Juncos, Oriana Nicole Alza, Natalia Paola Conde, Melisa Ailén Salvador, Gabriela Alejandra Uranga, Romina Maria |
author_role |
author |
author2 |
Maniscalchi, Athina Benzi Juncos, Oriana Nicole Alza, Natalia Paola Conde, Melisa Ailén Salvador, Gabriela Alejandra Uranga, Romina Maria |
author2_role |
author author author author author author |
dc.subject.none.fl_str_mv |
Oxidative stress lipid remodeling adipocyte |
topic |
Oxidative stress lipid remodeling adipocyte |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
A growing body of evidence indicates that oxidative stress (OS) can cause an increase in preadipocyte proliferation, and adipocyte differentiation. However, the biochemical mechanisms by which OS alters adipocyte neutral lipid metabolism are not completely elucidated. Menadione and iron (Fe) overload are well known OS enhancers through the induction of Fenton and Haber-Weiss reactions. We have previously demonstrated that menadione exposure (20 and 50 µM) in differentiated 3T3- L1 adipocytes results in increased cell oxidant levels and downregulation of adipogenic genes and transcription factors. In this work, our goal was to investigate the effect of menadione and Fe overload in neutral lipid metabolism both in adipocyte cell culture and by using an in vivo model. For this purpose, we worked with differentiated adipocytes challenged with menadione and C57BL/6 mice exposed to Fe overload. Differentiated 3T3-L1 adipocytes were exposed to menadione for 24 h, and then neutral lipid profile was analyzed. For the in vivo OS model, Fe-saccharate (800 or 1332 mg/kg) or vehicle were administered by intraperitoneal injection (four-dose scheme in 16 days). Plasma, visceral and gonadal adipose tissue obtained from Fetreated animals and controls were used to determine OS markers and neutral lipids. In mice, lipid peroxide levels and conjugated dienes derived from fatty acid oxidation were increased in visceral and gonadal adipose tissue after Fe treatment. No changes were detected in catalase activity. Moreover, OS markers from plasma were also augmented by Fe-overload. We found that menadione-induced OS increased triglyceride content and activated lipolysis in adipocytes. Intriguingly, monoacylglycerol and diacylglycerol levels were decreased, and no difference was observed in triacylglycerol levels in Feoverloaded mice. Fe treatment caused a diminution in wet weight of both gonadal and visceral adipose tissues when compared to control animals. Consequently, the ratio triacylglycerol/g wet tissue was increased by the effect of OS. Together, our results demonstrate that different OS inducers promote an active remodeling of neutral lipids in adipose tissue. Fil: Funk, Melania Iara. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina Fil: Maniscalchi, Athina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; Argentina Fil: Benzi Juncos, Oriana Nicole. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina Fil: Alza, Natalia Paola. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Química; Argentina Fil: Conde, Melisa Ailén. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina Fil: Salvador, Gabriela Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina Fil: Uranga, Romina Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina LVII Annual Meeting of the Argentine Society for Biochemistry and Molecular Biology Research (SAIB), XVI Annual Meeting of the Argentinean Society for General Microbiology (SAMIGE) Mendoza Argentina Sociedad Argentina de Investigación Bioquímica y Biología Molecular Sociedad Argentina de Microbiología General |
description |
A growing body of evidence indicates that oxidative stress (OS) can cause an increase in preadipocyte proliferation, and adipocyte differentiation. However, the biochemical mechanisms by which OS alters adipocyte neutral lipid metabolism are not completely elucidated. Menadione and iron (Fe) overload are well known OS enhancers through the induction of Fenton and Haber-Weiss reactions. We have previously demonstrated that menadione exposure (20 and 50 µM) in differentiated 3T3- L1 adipocytes results in increased cell oxidant levels and downregulation of adipogenic genes and transcription factors. In this work, our goal was to investigate the effect of menadione and Fe overload in neutral lipid metabolism both in adipocyte cell culture and by using an in vivo model. For this purpose, we worked with differentiated adipocytes challenged with menadione and C57BL/6 mice exposed to Fe overload. Differentiated 3T3-L1 adipocytes were exposed to menadione for 24 h, and then neutral lipid profile was analyzed. For the in vivo OS model, Fe-saccharate (800 or 1332 mg/kg) or vehicle were administered by intraperitoneal injection (four-dose scheme in 16 days). Plasma, visceral and gonadal adipose tissue obtained from Fetreated animals and controls were used to determine OS markers and neutral lipids. In mice, lipid peroxide levels and conjugated dienes derived from fatty acid oxidation were increased in visceral and gonadal adipose tissue after Fe treatment. No changes were detected in catalase activity. Moreover, OS markers from plasma were also augmented by Fe-overload. We found that menadione-induced OS increased triglyceride content and activated lipolysis in adipocytes. Intriguingly, monoacylglycerol and diacylglycerol levels were decreased, and no difference was observed in triacylglycerol levels in Feoverloaded mice. Fe treatment caused a diminution in wet weight of both gonadal and visceral adipose tissues when compared to control animals. Consequently, the ratio triacylglycerol/g wet tissue was increased by the effect of OS. Together, our results demonstrate that different OS inducers promote an active remodeling of neutral lipids in adipose tissue. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/conferenceObject Reunión Journal http://purl.org/coar/resource_type/c_5794 info:ar-repo/semantics/documentoDeConferencia |
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publishedVersion |
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conferenceObject |
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http://hdl.handle.net/11336/195359 Menadione and iron overload trigger neutral lipid remodelling in adipocytes and adipose tissue; LVII Annual Meeting of the Argentine Society for Biochemistry and Molecular Biology Research (SAIB), XVI Annual Meeting of the Argentinean Society for General Microbiology (SAMIGE); Mendoza; Argentina; 2021; 87-87 0327-9545 1667-5746 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/195359 |
identifier_str_mv |
Menadione and iron overload trigger neutral lipid remodelling in adipocytes and adipose tissue; LVII Annual Meeting of the Argentine Society for Biochemistry and Molecular Biology Research (SAIB), XVI Annual Meeting of the Argentinean Society for General Microbiology (SAMIGE); Mendoza; Argentina; 2021; 87-87 0327-9545 1667-5746 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
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info:eu-repo/semantics/altIdentifier/url/https://techscience.com/biocell/v46nSuppl.1/46213 |
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Tech Science Press |
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Tech Science Press |
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