Linoleic acid stimulates neutral lipid accumulation in lipid droplets of maturing bovine oocytes

Autores
Carro, Maria de Las Mercedes; Buschiazzo, Jorgelina; Rios, Glenda Laura; Oresti, Gerardo Martin; Alberio, R. H.
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Linoleic acid (LA) is a polyunsaturated fatty acid present in high concentrations in bovine follicular fluid; when added to maturation culture media, it affects oocyte competence (depending on the type and concentration of LA used). To date, little is known about the effective level of incorporation of LA and there is apparently no information regarding its esterification into various lipid fractions of the oocyte and its effect on neutral lipid storage. Therefore, the objective was to assess the uptake and subcellular lipid distribution of LA by analyzing incorporation of radiolabeled LA into oocyte polar and neutral lipid classes. The effects of various concentrations of LA on the nuclear status and cytoplasmic lipid content of bovine oocytes matured in vitro was also analyzed, with particular emphasis on intermediate concentrations of LA. Neutral lipids stored in lipid droplets were quantified with a fluorescence approach. Linoleic acid at 9 and 43 μM did not affect the nuclear status of oocytes matured in vitro, and 100 μM LA inhibited germinal vesicle breakdown, resulting in a higher percentage of oocytes arrested at the germinal state (43.5 vs. 3.0 in controls; P < 0.05). Bovine oocytes actively incorporated LA from the maturation medium (83.4 pmol LA per 100 oocytes at 22 hours of incubation; P < 0.05) and metabolized it mainly into major lipid classes, e.g., triacylglycerols and phospholipids (61.1% and 29.3%, respectively). Supplementation of the maturation medium with LA increased triacylglycerol accumulation in cytoplasmic lipid droplets at all concentrations assayed (P < 0.05). In conclusion, LA added to a defined maturation medium at concentrations that did not alter the nuclear status of bovine oocytes matured in vitro (9 and 43 μM) improved their quality by increasing the content of neutral lipids stored in lipid droplets. By directing the free fatty acid (LA) to triacylglycerol synthesis pathways and increasing the degree of unsaturation of membrane phospholipids, the oocyte was protected from lipotoxic effects (with an expectation of improved cryotolerance).
Fil: Carro, Maria de Las Mercedes. Instituto Nacional de Tecnologia Agropecuaria. Centro Reg.buenos Aires. Estacion Exptal.agrop.balcarce. Laboratorio de Biotecnologia de la Reproduccion; Argentina
Fil: Buschiazzo, Jorgelina. Instituto Nacional de Tecnologia Agropecuaria. Centro Reg.buenos Aires. Estacion Exptal.agrop.balcarce. Laboratorio de Biotecnologia de la Reproduccion; Argentina. Consejo Nacional de Investigaciones Cientificas y Técnicas. Centro Científico Tecnológico Bahia Blanca. Instituto de Investigaciones Bioquímicas Bahia Blanca (i); Argentina
Fil: Rios, Glenda Laura. Instituto Nacional de Tecnologia Agropecuaria. Centro Reg.buenos Aires. Estacion Exptal.agrop.balcarce. Laboratorio de Biotecnologia de la Reproduccion; Argentina
Fil: Oresti, Gerardo Martin. Consejo Nacional de Investigaciones Cientificas y Técnicas. Centro Científico Tecnológico Bahia Blanca. Instituto de Investigaciones Bioquímicas Bahia Blanca (i); Argentina
Fil: Alberio, R. H.. Instituto Nacional de Tecnologia Agropecuaria. Centro Reg.buenos Aires. Estacion Exptal.agrop.balcarce. Laboratorio de Biotecnologia de la Reproduccion; Argentina
Materia
Linoleic Acid
In Vitro Maturation
Lipid Droplets
Oocytes
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/7403
Acceder
id CONICETDig_49c301d19de6faa1afb992a97cba651b
oai_identifier_str oai:ri.conicet.gov.ar:11336/7403
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Linoleic acid stimulates neutral lipid accumulation in lipid droplets of maturing bovine oocytesCarro, Maria de Las MercedesBuschiazzo, JorgelinaRios, Glenda LauraOresti, Gerardo MartinAlberio, R. H.Linoleic AcidIn Vitro MaturationLipid DropletsOocyteshttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Linoleic acid (LA) is a polyunsaturated fatty acid present in high concentrations in bovine follicular fluid; when added to maturation culture media, it affects oocyte competence (depending on the type and concentration of LA used). To date, little is known about the effective level of incorporation of LA and there is apparently no information regarding its esterification into various lipid fractions of the oocyte and its effect on neutral lipid storage. Therefore, the objective was to assess the uptake and subcellular lipid distribution of LA by analyzing incorporation of radiolabeled LA into oocyte polar and neutral lipid classes. The effects of various concentrations of LA on the nuclear status and cytoplasmic lipid content of bovine oocytes matured in vitro was also analyzed, with particular emphasis on intermediate concentrations of LA. Neutral lipids stored in lipid droplets were quantified with a fluorescence approach. Linoleic acid at 9 and 43 μM did not affect the nuclear status of oocytes matured in vitro, and 100 μM LA inhibited germinal vesicle breakdown, resulting in a higher percentage of oocytes arrested at the germinal state (43.5 vs. 3.0 in controls; P < 0.05). Bovine oocytes actively incorporated LA from the maturation medium (83.4 pmol LA per 100 oocytes at 22 hours of incubation; P < 0.05) and metabolized it mainly into major lipid classes, e.g., triacylglycerols and phospholipids (61.1% and 29.3%, respectively). Supplementation of the maturation medium with LA increased triacylglycerol accumulation in cytoplasmic lipid droplets at all concentrations assayed (P < 0.05). In conclusion, LA added to a defined maturation medium at concentrations that did not alter the nuclear status of bovine oocytes matured in vitro (9 and 43 μM) improved their quality by increasing the content of neutral lipids stored in lipid droplets. By directing the free fatty acid (LA) to triacylglycerol synthesis pathways and increasing the degree of unsaturation of membrane phospholipids, the oocyte was protected from lipotoxic effects (with an expectation of improved cryotolerance).Fil: Carro, Maria de Las Mercedes. Instituto Nacional de Tecnologia Agropecuaria. Centro Reg.buenos Aires. Estacion Exptal.agrop.balcarce. Laboratorio de Biotecnologia de la Reproduccion; ArgentinaFil: Buschiazzo, Jorgelina. Instituto Nacional de Tecnologia Agropecuaria. Centro Reg.buenos Aires. Estacion Exptal.agrop.balcarce. Laboratorio de Biotecnologia de la Reproduccion; Argentina. Consejo Nacional de Investigaciones Cientificas y Técnicas. Centro Científico Tecnológico Bahia Blanca. Instituto de Investigaciones Bioquímicas Bahia Blanca (i); ArgentinaFil: Rios, Glenda Laura. Instituto Nacional de Tecnologia Agropecuaria. Centro Reg.buenos Aires. Estacion Exptal.agrop.balcarce. Laboratorio de Biotecnologia de la Reproduccion; ArgentinaFil: Oresti, Gerardo Martin. Consejo Nacional de Investigaciones Cientificas y Técnicas. Centro Científico Tecnológico Bahia Blanca. Instituto de Investigaciones Bioquímicas Bahia Blanca (i); ArgentinaFil: Alberio, R. H.. Instituto Nacional de Tecnologia Agropecuaria. Centro Reg.buenos Aires. Estacion Exptal.agrop.balcarce. Laboratorio de Biotecnologia de la Reproduccion; ArgentinaElsevier2013-03info: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/11336/7403Carro, Maria de Las Mercedes; Buschiazzo, Jorgelina; Rios, Glenda Laura; Oresti, Gerardo Martin; Alberio, R. H.; Linoleic acid stimulates neutral lipid accumulation in lipid droplets of maturing bovine oocytes; Elsevier; Theriogenology; 79; 4; 3-2013; 687-6940093-691Xenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0093691X12006334info:eu-repo/semantics/altIdentifier/doi/10.1016/j.theriogenology.2012.11.025info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:07:48Zoai:ri.conicet.gov.ar:11336/7403instacron: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 10:07:48.554CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Linoleic acid stimulates neutral lipid accumulation in lipid droplets of maturing bovine oocytes
title Linoleic acid stimulates neutral lipid accumulation in lipid droplets of maturing bovine oocytes
spellingShingle Linoleic acid stimulates neutral lipid accumulation in lipid droplets of maturing bovine oocytes
Carro, Maria de Las Mercedes
Linoleic Acid
In Vitro Maturation
Lipid Droplets
Oocytes
title_short Linoleic acid stimulates neutral lipid accumulation in lipid droplets of maturing bovine oocytes
title_full Linoleic acid stimulates neutral lipid accumulation in lipid droplets of maturing bovine oocytes
title_fullStr Linoleic acid stimulates neutral lipid accumulation in lipid droplets of maturing bovine oocytes
title_full_unstemmed Linoleic acid stimulates neutral lipid accumulation in lipid droplets of maturing bovine oocytes
title_sort Linoleic acid stimulates neutral lipid accumulation in lipid droplets of maturing bovine oocytes
dc.creator.none.fl_str_mv Carro, Maria de Las Mercedes
Buschiazzo, Jorgelina
Rios, Glenda Laura
Oresti, Gerardo Martin
Alberio, R. H.
author Carro, Maria de Las Mercedes
author_facet Carro, Maria de Las Mercedes
Buschiazzo, Jorgelina
Rios, Glenda Laura
Oresti, Gerardo Martin
Alberio, R. H.
author_role author
author2 Buschiazzo, Jorgelina
Rios, Glenda Laura
Oresti, Gerardo Martin
Alberio, R. H.
author2_role author
author
author
author
dc.subject.none.fl_str_mv Linoleic Acid
In Vitro Maturation
Lipid Droplets
Oocytes
topic Linoleic Acid
In Vitro Maturation
Lipid Droplets
Oocytes
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Linoleic acid (LA) is a polyunsaturated fatty acid present in high concentrations in bovine follicular fluid; when added to maturation culture media, it affects oocyte competence (depending on the type and concentration of LA used). To date, little is known about the effective level of incorporation of LA and there is apparently no information regarding its esterification into various lipid fractions of the oocyte and its effect on neutral lipid storage. Therefore, the objective was to assess the uptake and subcellular lipid distribution of LA by analyzing incorporation of radiolabeled LA into oocyte polar and neutral lipid classes. The effects of various concentrations of LA on the nuclear status and cytoplasmic lipid content of bovine oocytes matured in vitro was also analyzed, with particular emphasis on intermediate concentrations of LA. Neutral lipids stored in lipid droplets were quantified with a fluorescence approach. Linoleic acid at 9 and 43 μM did not affect the nuclear status of oocytes matured in vitro, and 100 μM LA inhibited germinal vesicle breakdown, resulting in a higher percentage of oocytes arrested at the germinal state (43.5 vs. 3.0 in controls; P < 0.05). Bovine oocytes actively incorporated LA from the maturation medium (83.4 pmol LA per 100 oocytes at 22 hours of incubation; P < 0.05) and metabolized it mainly into major lipid classes, e.g., triacylglycerols and phospholipids (61.1% and 29.3%, respectively). Supplementation of the maturation medium with LA increased triacylglycerol accumulation in cytoplasmic lipid droplets at all concentrations assayed (P < 0.05). In conclusion, LA added to a defined maturation medium at concentrations that did not alter the nuclear status of bovine oocytes matured in vitro (9 and 43 μM) improved their quality by increasing the content of neutral lipids stored in lipid droplets. By directing the free fatty acid (LA) to triacylglycerol synthesis pathways and increasing the degree of unsaturation of membrane phospholipids, the oocyte was protected from lipotoxic effects (with an expectation of improved cryotolerance).
Fil: Carro, Maria de Las Mercedes. Instituto Nacional de Tecnologia Agropecuaria. Centro Reg.buenos Aires. Estacion Exptal.agrop.balcarce. Laboratorio de Biotecnologia de la Reproduccion; Argentina
Fil: Buschiazzo, Jorgelina. Instituto Nacional de Tecnologia Agropecuaria. Centro Reg.buenos Aires. Estacion Exptal.agrop.balcarce. Laboratorio de Biotecnologia de la Reproduccion; Argentina. Consejo Nacional de Investigaciones Cientificas y Técnicas. Centro Científico Tecnológico Bahia Blanca. Instituto de Investigaciones Bioquímicas Bahia Blanca (i); Argentina
Fil: Rios, Glenda Laura. Instituto Nacional de Tecnologia Agropecuaria. Centro Reg.buenos Aires. Estacion Exptal.agrop.balcarce. Laboratorio de Biotecnologia de la Reproduccion; Argentina
Fil: Oresti, Gerardo Martin. Consejo Nacional de Investigaciones Cientificas y Técnicas. Centro Científico Tecnológico Bahia Blanca. Instituto de Investigaciones Bioquímicas Bahia Blanca (i); Argentina
Fil: Alberio, R. H.. Instituto Nacional de Tecnologia Agropecuaria. Centro Reg.buenos Aires. Estacion Exptal.agrop.balcarce. Laboratorio de Biotecnologia de la Reproduccion; Argentina
description Linoleic acid (LA) is a polyunsaturated fatty acid present in high concentrations in bovine follicular fluid; when added to maturation culture media, it affects oocyte competence (depending on the type and concentration of LA used). To date, little is known about the effective level of incorporation of LA and there is apparently no information regarding its esterification into various lipid fractions of the oocyte and its effect on neutral lipid storage. Therefore, the objective was to assess the uptake and subcellular lipid distribution of LA by analyzing incorporation of radiolabeled LA into oocyte polar and neutral lipid classes. The effects of various concentrations of LA on the nuclear status and cytoplasmic lipid content of bovine oocytes matured in vitro was also analyzed, with particular emphasis on intermediate concentrations of LA. Neutral lipids stored in lipid droplets were quantified with a fluorescence approach. Linoleic acid at 9 and 43 μM did not affect the nuclear status of oocytes matured in vitro, and 100 μM LA inhibited germinal vesicle breakdown, resulting in a higher percentage of oocytes arrested at the germinal state (43.5 vs. 3.0 in controls; P < 0.05). Bovine oocytes actively incorporated LA from the maturation medium (83.4 pmol LA per 100 oocytes at 22 hours of incubation; P < 0.05) and metabolized it mainly into major lipid classes, e.g., triacylglycerols and phospholipids (61.1% and 29.3%, respectively). Supplementation of the maturation medium with LA increased triacylglycerol accumulation in cytoplasmic lipid droplets at all concentrations assayed (P < 0.05). In conclusion, LA added to a defined maturation medium at concentrations that did not alter the nuclear status of bovine oocytes matured in vitro (9 and 43 μM) improved their quality by increasing the content of neutral lipids stored in lipid droplets. By directing the free fatty acid (LA) to triacylglycerol synthesis pathways and increasing the degree of unsaturation of membrane phospholipids, the oocyte was protected from lipotoxic effects (with an expectation of improved cryotolerance).
publishDate 2013
dc.date.none.fl_str_mv 2013-03
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/11336/7403
Carro, Maria de Las Mercedes; Buschiazzo, Jorgelina; Rios, Glenda Laura; Oresti, Gerardo Martin; Alberio, R. H.; Linoleic acid stimulates neutral lipid accumulation in lipid droplets of maturing bovine oocytes; Elsevier; Theriogenology; 79; 4; 3-2013; 687-694
0093-691X
url http://hdl.handle.net/11336/7403
identifier_str_mv Carro, Maria de Las Mercedes; Buschiazzo, Jorgelina; Rios, Glenda Laura; Oresti, Gerardo Martin; Alberio, R. H.; Linoleic acid stimulates neutral lipid accumulation in lipid droplets of maturing bovine oocytes; Elsevier; Theriogenology; 79; 4; 3-2013; 687-694
0093-691X
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0093691X12006334
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.theriogenology.2012.11.025
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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
_version_ 1842270018371321856
score 13.13397

Publicaciones similares