Gamma or beta knockdown affects 3T3-L1 adipogenic differentiation through hippo pathway modulation

Autores
del Veliz, Samanta; Uhart, Marina; Bustos, Diego Martin
Año de publicación
2021
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
Adipocyte differentiation requires the interplay of cell signaling pathways and transcription factors to be articulated. The Hippo pathway is involved in the control of tissue size and shape, through the regulation of proliferation, apoptosis and differentiation of stem cells and cell precursors. TAZ, the transcriptional co-activator with PDZ binding motif, is one of the main effectors of the Hippo pathway. It has been shown that when the Hippo pathway is inactive, TAZ is dephosphorylated and nuclear. There, TAZ inactivates PPAR dependent gene transcription. However, when the Hippo pathway is active, the LATS-1/2 kinases phosphorylate TAZ inducing its retention in the cytoplasm by 14-3-3 proteins. In our laboratory, we achieve adipocyte differentiation in vitro by adding an adipogenic differentiation medium (ADM) that includes Dulbecco's modified Eagle's medium, 10% fetal bovine serum, synthetic drugs (dexamethasone, IBMX, rosiglitazone), and peptide hormones (insulin). We have previously shown that replacing IBMX in ADM by the Glucagon Like Peptide-1 Analog (GLP-1A) enhanced adipogenic differentiation in most cells, evidenced as a larger number and size of lipid droplets. In this condition, we found higher levels of Hippo pathway proteins, and both 14-3-3 gamma and beta isoforms on day 7 of differentiation. Here, using the IBMX x GLP1 differentiation cocktail, we studied i) the subcellular localization of TAZ throughout the cell adipogenesis process and ii) the adipogenic potential in 3T3-L1 wild-type, and 14-3-3 and 14-3-3β silenced cells. We transduced 3T3-L1 cells with lentiviruses containing plasmids with isoform-specific short hairpin ribonucleic acids for 14-3-3 (shRNA or shRNAβ). As these lentiviruses simultaneously express ZsGreen, the levels of infection were monitored. After 3 or 7 days of differentiation, we evaluated the subcellular localization of TAZ through indirect immunofluorescence and confocal microscopy. We observed that in the WT cells, TAZ is more cytoplasmic on day 3 and becomes diffuse (both nuclear and cytoplasmic) on day 7. In shRNAβ cells, TAZ remains diffuse throughout days 3 and 7. However, in shRNA cells, the subcellular distribution of TAZ is diffuse on day 3 and becomes cytoplasmic on day 7 of differentiation. Also, adipogenic differentiation was affected in different ways by silencing these two 14-3-3 isoforms. While 14-3-3β silenced cells showed a decrease in adipogenic differentiation compared to the WT control, the 14-3-3 silenced cells showed an opposite phenotype, accumulating a larger quantity and size of lipid droplets than the WT control. Our results suggest that both 14-3-3 and β isoforms regulate adipogenic differentiation through Hippo pathway modulation. More research is needed to understand the exact mechanisms by which each isoform modulates the Hippo pathway.
Fil: del Veliz, Samanta. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Histología y Embriología de Mendoza Dr. Mario H. Burgos. Universidad Nacional de Cuyo. Facultad de Ciencias Médicas. Instituto de Histología y Embriología de Mendoza Dr. Mario H. Burgos; Argentina
Fil: Uhart, Marina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Histología y Embriología de Mendoza Dr. Mario H. Burgos. Universidad Nacional de Cuyo. Facultad de Ciencias Médicas. Instituto de Histología y Embriología de Mendoza Dr. Mario H. Burgos; Argentina
Fil: Bustos, Diego Martin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Histología y Embriología de Mendoza Dr. Mario H. Burgos. Universidad Nacional de Cuyo. Facultad de Ciencias Médicas. Instituto de Histología y Embriología de Mendoza Dr. Mario H. Burgos; Argentina
LVII Reunión Anual de Sociedad Argentina de Investigación Bioquímica
Mendoza
Argentina
Sociedad Argentina de Investigación en Bioquimica y Biología Molecular
Materia
14-3-3
ADIPOGENESIS
3T3-L1
TAZ
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/244089

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network_name_str CONICET Digital (CONICET)
spelling Gamma or beta knockdown affects 3T3-L1 adipogenic differentiation through hippo pathway modulationdel Veliz, SamantaUhart, MarinaBustos, Diego Martin14-3-3ADIPOGENESIS3T3-L1TAZhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Adipocyte differentiation requires the interplay of cell signaling pathways and transcription factors to be articulated. The Hippo pathway is involved in the control of tissue size and shape, through the regulation of proliferation, apoptosis and differentiation of stem cells and cell precursors. TAZ, the transcriptional co-activator with PDZ binding motif, is one of the main effectors of the Hippo pathway. It has been shown that when the Hippo pathway is inactive, TAZ is dephosphorylated and nuclear. There, TAZ inactivates PPAR dependent gene transcription. However, when the Hippo pathway is active, the LATS-1/2 kinases phosphorylate TAZ inducing its retention in the cytoplasm by 14-3-3 proteins. In our laboratory, we achieve adipocyte differentiation in vitro by adding an adipogenic differentiation medium (ADM) that includes Dulbecco's modified Eagle's medium, 10% fetal bovine serum, synthetic drugs (dexamethasone, IBMX, rosiglitazone), and peptide hormones (insulin). We have previously shown that replacing IBMX in ADM by the Glucagon Like Peptide-1 Analog (GLP-1A) enhanced adipogenic differentiation in most cells, evidenced as a larger number and size of lipid droplets. In this condition, we found higher levels of Hippo pathway proteins, and both 14-3-3 gamma and beta isoforms on day 7 of differentiation. Here, using the IBMX x GLP1 differentiation cocktail, we studied i) the subcellular localization of TAZ throughout the cell adipogenesis process and ii) the adipogenic potential in 3T3-L1 wild-type, and 14-3-3 and 14-3-3β silenced cells. We transduced 3T3-L1 cells with lentiviruses containing plasmids with isoform-specific short hairpin ribonucleic acids for 14-3-3 (shRNA or shRNAβ). As these lentiviruses simultaneously express ZsGreen, the levels of infection were monitored. After 3 or 7 days of differentiation, we evaluated the subcellular localization of TAZ through indirect immunofluorescence and confocal microscopy. We observed that in the WT cells, TAZ is more cytoplasmic on day 3 and becomes diffuse (both nuclear and cytoplasmic) on day 7. In shRNAβ cells, TAZ remains diffuse throughout days 3 and 7. However, in shRNA cells, the subcellular distribution of TAZ is diffuse on day 3 and becomes cytoplasmic on day 7 of differentiation. Also, adipogenic differentiation was affected in different ways by silencing these two 14-3-3 isoforms. While 14-3-3β silenced cells showed a decrease in adipogenic differentiation compared to the WT control, the 14-3-3 silenced cells showed an opposite phenotype, accumulating a larger quantity and size of lipid droplets than the WT control. Our results suggest that both 14-3-3 and β isoforms regulate adipogenic differentiation through Hippo pathway modulation. More research is needed to understand the exact mechanisms by which each isoform modulates the Hippo pathway.Fil: del Veliz, Samanta. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Histología y Embriología de Mendoza Dr. Mario H. Burgos. Universidad Nacional de Cuyo. Facultad de Ciencias Médicas. Instituto de Histología y Embriología de Mendoza Dr. Mario H. Burgos; ArgentinaFil: Uhart, Marina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Histología y Embriología de Mendoza Dr. Mario H. Burgos. Universidad Nacional de Cuyo. Facultad de Ciencias Médicas. Instituto de Histología y Embriología de Mendoza Dr. Mario H. Burgos; ArgentinaFil: Bustos, Diego Martin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Histología y Embriología de Mendoza Dr. Mario H. Burgos. Universidad Nacional de Cuyo. Facultad de Ciencias Médicas. Instituto de Histología y Embriología de Mendoza Dr. Mario H. Burgos; ArgentinaLVII Reunión Anual de Sociedad Argentina de Investigación BioquímicaMendozaArgentinaSociedad Argentina de Investigación en Bioquimica y Biología MolecularTech Science Press2021info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectReuniónJournalhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/vnd.openxmlformats-officedocument.wordprocessingml.documentapplication/pdfhttp://hdl.handle.net/11336/244089Gamma or beta knockdown affects 3T3-L1 adipogenic differentiation through hippo pathway modulation; LVII Reunión Anual de Sociedad Argentina de Investigación Bioquímica; Mendoza; Argentina; 2021; 50-500327-95451667-5746CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://saib.org.ar/archivos/biocell-46.pdfNacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:11:07Zoai:ri.conicet.gov.ar:11336/244089instacron: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 10:11:08.005CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Gamma or beta knockdown affects 3T3-L1 adipogenic differentiation through hippo pathway modulation
title Gamma or beta knockdown affects 3T3-L1 adipogenic differentiation through hippo pathway modulation
spellingShingle Gamma or beta knockdown affects 3T3-L1 adipogenic differentiation through hippo pathway modulation
del Veliz, Samanta
14-3-3
ADIPOGENESIS
3T3-L1
TAZ
title_short Gamma or beta knockdown affects 3T3-L1 adipogenic differentiation through hippo pathway modulation
title_full Gamma or beta knockdown affects 3T3-L1 adipogenic differentiation through hippo pathway modulation
title_fullStr Gamma or beta knockdown affects 3T3-L1 adipogenic differentiation through hippo pathway modulation
title_full_unstemmed Gamma or beta knockdown affects 3T3-L1 adipogenic differentiation through hippo pathway modulation
title_sort Gamma or beta knockdown affects 3T3-L1 adipogenic differentiation through hippo pathway modulation
dc.creator.none.fl_str_mv del Veliz, Samanta
Uhart, Marina
Bustos, Diego Martin
author del Veliz, Samanta
author_facet del Veliz, Samanta
Uhart, Marina
Bustos, Diego Martin
author_role author
author2 Uhart, Marina
Bustos, Diego Martin
author2_role author
author
dc.subject.none.fl_str_mv 14-3-3
ADIPOGENESIS
3T3-L1
TAZ
topic 14-3-3
ADIPOGENESIS
3T3-L1
TAZ
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Adipocyte differentiation requires the interplay of cell signaling pathways and transcription factors to be articulated. The Hippo pathway is involved in the control of tissue size and shape, through the regulation of proliferation, apoptosis and differentiation of stem cells and cell precursors. TAZ, the transcriptional co-activator with PDZ binding motif, is one of the main effectors of the Hippo pathway. It has been shown that when the Hippo pathway is inactive, TAZ is dephosphorylated and nuclear. There, TAZ inactivates PPAR dependent gene transcription. However, when the Hippo pathway is active, the LATS-1/2 kinases phosphorylate TAZ inducing its retention in the cytoplasm by 14-3-3 proteins. In our laboratory, we achieve adipocyte differentiation in vitro by adding an adipogenic differentiation medium (ADM) that includes Dulbecco's modified Eagle's medium, 10% fetal bovine serum, synthetic drugs (dexamethasone, IBMX, rosiglitazone), and peptide hormones (insulin). We have previously shown that replacing IBMX in ADM by the Glucagon Like Peptide-1 Analog (GLP-1A) enhanced adipogenic differentiation in most cells, evidenced as a larger number and size of lipid droplets. In this condition, we found higher levels of Hippo pathway proteins, and both 14-3-3 gamma and beta isoforms on day 7 of differentiation. Here, using the IBMX x GLP1 differentiation cocktail, we studied i) the subcellular localization of TAZ throughout the cell adipogenesis process and ii) the adipogenic potential in 3T3-L1 wild-type, and 14-3-3 and 14-3-3β silenced cells. We transduced 3T3-L1 cells with lentiviruses containing plasmids with isoform-specific short hairpin ribonucleic acids for 14-3-3 (shRNA or shRNAβ). As these lentiviruses simultaneously express ZsGreen, the levels of infection were monitored. After 3 or 7 days of differentiation, we evaluated the subcellular localization of TAZ through indirect immunofluorescence and confocal microscopy. We observed that in the WT cells, TAZ is more cytoplasmic on day 3 and becomes diffuse (both nuclear and cytoplasmic) on day 7. In shRNAβ cells, TAZ remains diffuse throughout days 3 and 7. However, in shRNA cells, the subcellular distribution of TAZ is diffuse on day 3 and becomes cytoplasmic on day 7 of differentiation. Also, adipogenic differentiation was affected in different ways by silencing these two 14-3-3 isoforms. While 14-3-3β silenced cells showed a decrease in adipogenic differentiation compared to the WT control, the 14-3-3 silenced cells showed an opposite phenotype, accumulating a larger quantity and size of lipid droplets than the WT control. Our results suggest that both 14-3-3 and β isoforms regulate adipogenic differentiation through Hippo pathway modulation. More research is needed to understand the exact mechanisms by which each isoform modulates the Hippo pathway.
Fil: del Veliz, Samanta. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Histología y Embriología de Mendoza Dr. Mario H. Burgos. Universidad Nacional de Cuyo. Facultad de Ciencias Médicas. Instituto de Histología y Embriología de Mendoza Dr. Mario H. Burgos; Argentina
Fil: Uhart, Marina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Histología y Embriología de Mendoza Dr. Mario H. Burgos. Universidad Nacional de Cuyo. Facultad de Ciencias Médicas. Instituto de Histología y Embriología de Mendoza Dr. Mario H. Burgos; Argentina
Fil: Bustos, Diego Martin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Histología y Embriología de Mendoza Dr. Mario H. Burgos. Universidad Nacional de Cuyo. Facultad de Ciencias Médicas. Instituto de Histología y Embriología de Mendoza Dr. Mario H. Burgos; Argentina
LVII Reunión Anual de Sociedad Argentina de Investigación Bioquímica
Mendoza
Argentina
Sociedad Argentina de Investigación en Bioquimica y Biología Molecular
description Adipocyte differentiation requires the interplay of cell signaling pathways and transcription factors to be articulated. The Hippo pathway is involved in the control of tissue size and shape, through the regulation of proliferation, apoptosis and differentiation of stem cells and cell precursors. TAZ, the transcriptional co-activator with PDZ binding motif, is one of the main effectors of the Hippo pathway. It has been shown that when the Hippo pathway is inactive, TAZ is dephosphorylated and nuclear. There, TAZ inactivates PPAR dependent gene transcription. However, when the Hippo pathway is active, the LATS-1/2 kinases phosphorylate TAZ inducing its retention in the cytoplasm by 14-3-3 proteins. In our laboratory, we achieve adipocyte differentiation in vitro by adding an adipogenic differentiation medium (ADM) that includes Dulbecco's modified Eagle's medium, 10% fetal bovine serum, synthetic drugs (dexamethasone, IBMX, rosiglitazone), and peptide hormones (insulin). We have previously shown that replacing IBMX in ADM by the Glucagon Like Peptide-1 Analog (GLP-1A) enhanced adipogenic differentiation in most cells, evidenced as a larger number and size of lipid droplets. In this condition, we found higher levels of Hippo pathway proteins, and both 14-3-3 gamma and beta isoforms on day 7 of differentiation. Here, using the IBMX x GLP1 differentiation cocktail, we studied i) the subcellular localization of TAZ throughout the cell adipogenesis process and ii) the adipogenic potential in 3T3-L1 wild-type, and 14-3-3 and 14-3-3β silenced cells. We transduced 3T3-L1 cells with lentiviruses containing plasmids with isoform-specific short hairpin ribonucleic acids for 14-3-3 (shRNA or shRNAβ). As these lentiviruses simultaneously express ZsGreen, the levels of infection were monitored. After 3 or 7 days of differentiation, we evaluated the subcellular localization of TAZ through indirect immunofluorescence and confocal microscopy. We observed that in the WT cells, TAZ is more cytoplasmic on day 3 and becomes diffuse (both nuclear and cytoplasmic) on day 7. In shRNAβ cells, TAZ remains diffuse throughout days 3 and 7. However, in shRNA cells, the subcellular distribution of TAZ is diffuse on day 3 and becomes cytoplasmic on day 7 of differentiation. Also, adipogenic differentiation was affected in different ways by silencing these two 14-3-3 isoforms. While 14-3-3β silenced cells showed a decrease in adipogenic differentiation compared to the WT control, the 14-3-3 silenced cells showed an opposite phenotype, accumulating a larger quantity and size of lipid droplets than the WT control. Our results suggest that both 14-3-3 and β isoforms regulate adipogenic differentiation through Hippo pathway modulation. More research is needed to understand the exact mechanisms by which each isoform modulates the Hippo pathway.
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
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http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
status_str publishedVersion
format conferenceObject
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/244089
Gamma or beta knockdown affects 3T3-L1 adipogenic differentiation through hippo pathway modulation; LVII Reunión Anual de Sociedad Argentina de Investigación Bioquímica; Mendoza; Argentina; 2021; 50-50
0327-9545
1667-5746
CONICET Digital
CONICET
url http://hdl.handle.net/11336/244089
identifier_str_mv Gamma or beta knockdown affects 3T3-L1 adipogenic differentiation through hippo pathway modulation; LVII Reunión Anual de Sociedad Argentina de Investigación Bioquímica; Mendoza; Argentina; 2021; 50-50
0327-9545
1667-5746
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://saib.org.ar/archivos/biocell-46.pdf
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