Inhibition of the synthesis of glycosphingolipid by a ceramide analogue (PPMP) in the gastrulation of Bufo arenarum

Autores
Aybar, Manuel Javier; Fuentes, Cynthia Analia; Sanchez, Sara Serafina del V.
Año de publicación
2000
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In the present study the role of glycosphingolipids (GSL) in amphibian development was investigated. We analysed the de novo synthesis of neutral GSL and gangliosides through the initial stages of Bufo arenarnm embryo development and their participation during gastrulation using 1-phenyl-2-palmitoyl-3-morpholino-1-propanol (PPMP), a potent inhibitor of glucosylceramide synthase. Ganglioside synthesis began at the blastula stage and reached a maximum during gastrulation (stages 10-12) while neutral GSL synthesis showed a slight gradual increase, the former being quantitatively more significant than the lat-ter. Ganglioside synthesis was reduced by 90% while neutral GSL synthesis was inhibited by 65% when embryos at blastula stage were cultured for 24 h in 20 μM PPMP. The depletion of GSL from amphibian embryos induced an abnormal gastrulation in a dose-dependent manner. We found that PPMP had a pronounced effect on development since no embryos exhibited normal gastrulation; their developmental rate either slowed down or, more often, became totally arrested. Morphological analysis of arrested embryos revealed inhibition of the gastrulation morphogenetic movements. Analysis of mesodermal cell morphology in those embryos showed a severe decrease in the number and complexity of cellular extensions such as filopodia and lamellipodia. Mesodermal cells isolated from PPMP-treated embryos had very low adhesion percentages. Our results suggest that glycosphingolipids participate in Bufo arenarum gastrulation, probably through their involvement in cell adhesion events.
Fil: Aybar, Manuel Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Investigaciones Biológicas. Universidad Nacional de Tucumán. Instituto Superior de Investigaciones Biológicas; Argentina
Fil: Fuentes, Cynthia Analia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Investigaciones Biológicas. Universidad Nacional de Tucumán. Instituto Superior de Investigaciones Biológicas; Argentina
Fil: Sanchez, Sara Serafina del V.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Investigaciones Biológicas. Universidad Nacional de Tucumán. Instituto Superior de Investigaciones Biológicas; Argentina
Materia
AMPHIBIAN
GASTRULATION
GLYCOSPHINGOLIPIDS
INHIBITOR
PPMP
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:11336/97341
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/97341
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Inhibition of the synthesis of glycosphingolipid by a ceramide analogue (PPMP) in the gastrulation of Bufo arenarumAybar, Manuel JavierFuentes, Cynthia AnaliaSanchez, Sara Serafina del V.AMPHIBIANGASTRULATIONGLYCOSPHINGOLIPIDSINHIBITORPPMPhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1In the present study the role of glycosphingolipids (GSL) in amphibian development was investigated. We analysed the de novo synthesis of neutral GSL and gangliosides through the initial stages of Bufo arenarnm embryo development and their participation during gastrulation using 1-phenyl-2-palmitoyl-3-morpholino-1-propanol (PPMP), a potent inhibitor of glucosylceramide synthase. Ganglioside synthesis began at the blastula stage and reached a maximum during gastrulation (stages 10-12) while neutral GSL synthesis showed a slight gradual increase, the former being quantitatively more significant than the lat-ter. Ganglioside synthesis was reduced by 90% while neutral GSL synthesis was inhibited by 65% when embryos at blastula stage were cultured for 24 h in 20 μM PPMP. The depletion of GSL from amphibian embryos induced an abnormal gastrulation in a dose-dependent manner. We found that PPMP had a pronounced effect on development since no embryos exhibited normal gastrulation; their developmental rate either slowed down or, more often, became totally arrested. Morphological analysis of arrested embryos revealed inhibition of the gastrulation morphogenetic movements. Analysis of mesodermal cell morphology in those embryos showed a severe decrease in the number and complexity of cellular extensions such as filopodia and lamellipodia. Mesodermal cells isolated from PPMP-treated embryos had very low adhesion percentages. Our results suggest that glycosphingolipids participate in Bufo arenarum gastrulation, probably through their involvement in cell adhesion events.Fil: Aybar, Manuel Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Investigaciones Biológicas. Universidad Nacional de Tucumán. Instituto Superior de Investigaciones Biológicas; ArgentinaFil: Fuentes, Cynthia Analia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Investigaciones Biológicas. Universidad Nacional de Tucumán. Instituto Superior de Investigaciones Biológicas; ArgentinaFil: Sanchez, Sara Serafina del V.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Investigaciones Biológicas. Universidad Nacional de Tucumán. Instituto Superior de Investigaciones Biológicas; ArgentinaCambridge University Press2000-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/97341Aybar, Manuel Javier; Fuentes, Cynthia Analia; Sanchez, Sara Serafina del V.; Inhibition of the synthesis of glycosphingolipid by a ceramide analogue (PPMP) in the gastrulation of Bufo arenarum; Cambridge University Press; Zygote; 8; 2; 5-2000; 159-1690967-1994CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1017/S0967199400000940info:eu-repo/semantics/altIdentifier/url/https://www.cambridge.org/core/journals/zygote/article/inhibition-of-the-synthesis-of-glycosphingolipid-by-a-ceramide-analogue-ppmp-in-the-gastrulation-of-bufo-arenarum/F1488B26A7176A89DFCAE62AC362CB33info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:28:14Zoai:ri.conicet.gov.ar:11336/97341instacron: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:34982025-10-22 11:28:15.229CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Inhibition of the synthesis of glycosphingolipid by a ceramide analogue (PPMP) in the gastrulation of Bufo arenarum
title Inhibition of the synthesis of glycosphingolipid by a ceramide analogue (PPMP) in the gastrulation of Bufo arenarum
spellingShingle Inhibition of the synthesis of glycosphingolipid by a ceramide analogue (PPMP) in the gastrulation of Bufo arenarum
Aybar, Manuel Javier
AMPHIBIAN
GASTRULATION
GLYCOSPHINGOLIPIDS
INHIBITOR
PPMP
title_short Inhibition of the synthesis of glycosphingolipid by a ceramide analogue (PPMP) in the gastrulation of Bufo arenarum
title_full Inhibition of the synthesis of glycosphingolipid by a ceramide analogue (PPMP) in the gastrulation of Bufo arenarum
title_fullStr Inhibition of the synthesis of glycosphingolipid by a ceramide analogue (PPMP) in the gastrulation of Bufo arenarum
title_full_unstemmed Inhibition of the synthesis of glycosphingolipid by a ceramide analogue (PPMP) in the gastrulation of Bufo arenarum
title_sort Inhibition of the synthesis of glycosphingolipid by a ceramide analogue (PPMP) in the gastrulation of Bufo arenarum
dc.creator.none.fl_str_mv Aybar, Manuel Javier
Fuentes, Cynthia Analia
Sanchez, Sara Serafina del V.
author Aybar, Manuel Javier
author_facet Aybar, Manuel Javier
Fuentes, Cynthia Analia
Sanchez, Sara Serafina del V.
author_role author
author2 Fuentes, Cynthia Analia
Sanchez, Sara Serafina del V.
author2_role author
author
dc.subject.none.fl_str_mv AMPHIBIAN
GASTRULATION
GLYCOSPHINGOLIPIDS
INHIBITOR
PPMP
topic AMPHIBIAN
GASTRULATION
GLYCOSPHINGOLIPIDS
INHIBITOR
PPMP
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In the present study the role of glycosphingolipids (GSL) in amphibian development was investigated. We analysed the de novo synthesis of neutral GSL and gangliosides through the initial stages of Bufo arenarnm embryo development and their participation during gastrulation using 1-phenyl-2-palmitoyl-3-morpholino-1-propanol (PPMP), a potent inhibitor of glucosylceramide synthase. Ganglioside synthesis began at the blastula stage and reached a maximum during gastrulation (stages 10-12) while neutral GSL synthesis showed a slight gradual increase, the former being quantitatively more significant than the lat-ter. Ganglioside synthesis was reduced by 90% while neutral GSL synthesis was inhibited by 65% when embryos at blastula stage were cultured for 24 h in 20 μM PPMP. The depletion of GSL from amphibian embryos induced an abnormal gastrulation in a dose-dependent manner. We found that PPMP had a pronounced effect on development since no embryos exhibited normal gastrulation; their developmental rate either slowed down or, more often, became totally arrested. Morphological analysis of arrested embryos revealed inhibition of the gastrulation morphogenetic movements. Analysis of mesodermal cell morphology in those embryos showed a severe decrease in the number and complexity of cellular extensions such as filopodia and lamellipodia. Mesodermal cells isolated from PPMP-treated embryos had very low adhesion percentages. Our results suggest that glycosphingolipids participate in Bufo arenarum gastrulation, probably through their involvement in cell adhesion events.
Fil: Aybar, Manuel Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Investigaciones Biológicas. Universidad Nacional de Tucumán. Instituto Superior de Investigaciones Biológicas; Argentina
Fil: Fuentes, Cynthia Analia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Investigaciones Biológicas. Universidad Nacional de Tucumán. Instituto Superior de Investigaciones Biológicas; Argentina
Fil: Sanchez, Sara Serafina del V.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Investigaciones Biológicas. Universidad Nacional de Tucumán. Instituto Superior de Investigaciones Biológicas; Argentina
description In the present study the role of glycosphingolipids (GSL) in amphibian development was investigated. We analysed the de novo synthesis of neutral GSL and gangliosides through the initial stages of Bufo arenarnm embryo development and their participation during gastrulation using 1-phenyl-2-palmitoyl-3-morpholino-1-propanol (PPMP), a potent inhibitor of glucosylceramide synthase. Ganglioside synthesis began at the blastula stage and reached a maximum during gastrulation (stages 10-12) while neutral GSL synthesis showed a slight gradual increase, the former being quantitatively more significant than the lat-ter. Ganglioside synthesis was reduced by 90% while neutral GSL synthesis was inhibited by 65% when embryos at blastula stage were cultured for 24 h in 20 μM PPMP. The depletion of GSL from amphibian embryos induced an abnormal gastrulation in a dose-dependent manner. We found that PPMP had a pronounced effect on development since no embryos exhibited normal gastrulation; their developmental rate either slowed down or, more often, became totally arrested. Morphological analysis of arrested embryos revealed inhibition of the gastrulation morphogenetic movements. Analysis of mesodermal cell morphology in those embryos showed a severe decrease in the number and complexity of cellular extensions such as filopodia and lamellipodia. Mesodermal cells isolated from PPMP-treated embryos had very low adhesion percentages. Our results suggest that glycosphingolipids participate in Bufo arenarum gastrulation, probably through their involvement in cell adhesion events.
publishDate 2000
dc.date.none.fl_str_mv 2000-05
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/11336/97341
Aybar, Manuel Javier; Fuentes, Cynthia Analia; Sanchez, Sara Serafina del V.; Inhibition of the synthesis of glycosphingolipid by a ceramide analogue (PPMP) in the gastrulation of Bufo arenarum; Cambridge University Press; Zygote; 8; 2; 5-2000; 159-169
0967-1994
CONICET Digital
CONICET
url http://hdl.handle.net/11336/97341
identifier_str_mv Aybar, Manuel Javier; Fuentes, Cynthia Analia; Sanchez, Sara Serafina del V.; Inhibition of the synthesis of glycosphingolipid by a ceramide analogue (PPMP) in the gastrulation of Bufo arenarum; Cambridge University Press; Zygote; 8; 2; 5-2000; 159-169
0967-1994
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1017/S0967199400000940
info:eu-repo/semantics/altIdentifier/url/https://www.cambridge.org/core/journals/zygote/article/inhibition-of-the-synthesis-of-glycosphingolipid-by-a-ceramide-analogue-ppmp-in-the-gastrulation-of-bufo-arenarum/F1488B26A7176A89DFCAE62AC362CB33
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
dc.publisher.none.fl_str_mv Cambridge University Press
publisher.none.fl_str_mv Cambridge University 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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score 12.982451

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