Lipids with long chain polyenoic fatty acids (PUFA) of the n-9 series in rat epididymal cells
- Autores
- Luquez, Jessica Mariela; Oresti, Gerardo Martin; Aveldaño, Marta Isabel; Furland, Natalia Edith
- Año de publicación
- 2010
- Idioma
- inglés
- Tipo de recurso
- documento de conferencia
- Estado
- versión publicada
- Descripción
- In rats, epididymal sperm maturation is associated with the acquisition of glycerophospholipids (GPL) with uncommon C20- C24 carbon PUFA of the n-9 series, particularly 22:4n-9-rich plasmenylcholine. Little is known about how the epididymal epithelium participates in this accretion. In this study, three epididymal regions (caput, corpus, cauda) were isolated for lipid and fatty acid analysis. Unexpectedly, the main n-9 PUFA-rich epididymal GPL including plasmalogens were those of ethanolamine rather than those of choline. Epididymal triacylglycerols (TAG) were highly enriched in 18:1n-9, a precursor of 22:4n-9, whereas the ether-linked triglycerides (ADG), as the GPL, were rich in C20-C24 n-9 PUFA (mainly 22:4n-9). The epididymal n-9 PUFA-rich ADG were made up by important proportions of 1-O-alkyl and 1-alk-1´enyl diacylglycerols. This contrasts with the ADG of testis, where the former subclass predominates over the latter and both are rich in 22:5n-6. Although 22:4n-9-rich GPL and ADG were present in the three epididymal segments, they were significantly more concentrated in the corpus, the metabolically most active region of the epididymis. Our results suggest an active involvement of epididymal cells in the lipid remodeling undergone by spermatozoa during their maturation, most of which takes place before the mature gametes are stored in the cauda region.
Fil: Luquez, Jessica Mariela. 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: Oresti, Gerardo Martin. 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: Aveldaño, Marta Isabel. 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: Furland, Natalia Edith. 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
XXVI Reunión Anual Sociedad Argentina de Investigación en Bioquímica y Biología Molecular
Puerto Madryn
Argentina
Sociedad Argenina de investigación en Bioquímica y Biología Molecular - Materia
-
EPIDIDYMIS
PLASMALOGENS
ETHER-LINKED TRIGLYCERIDES
n-9 POLYUNSATURATED FATTY ACIDS - 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:11336/244980
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Lipids with long chain polyenoic fatty acids (PUFA) of the n-9 series in rat epididymal cellsLuquez, Jessica MarielaOresti, Gerardo MartinAveldaño, Marta IsabelFurland, Natalia EdithEPIDIDYMISPLASMALOGENSETHER-LINKED TRIGLYCERIDESn-9 POLYUNSATURATED FATTY ACIDShttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1In rats, epididymal sperm maturation is associated with the acquisition of glycerophospholipids (GPL) with uncommon C20- C24 carbon PUFA of the n-9 series, particularly 22:4n-9-rich plasmenylcholine. Little is known about how the epididymal epithelium participates in this accretion. In this study, three epididymal regions (caput, corpus, cauda) were isolated for lipid and fatty acid analysis. Unexpectedly, the main n-9 PUFA-rich epididymal GPL including plasmalogens were those of ethanolamine rather than those of choline. Epididymal triacylglycerols (TAG) were highly enriched in 18:1n-9, a precursor of 22:4n-9, whereas the ether-linked triglycerides (ADG), as the GPL, were rich in C20-C24 n-9 PUFA (mainly 22:4n-9). The epididymal n-9 PUFA-rich ADG were made up by important proportions of 1-O-alkyl and 1-alk-1´enyl diacylglycerols. This contrasts with the ADG of testis, where the former subclass predominates over the latter and both are rich in 22:5n-6. Although 22:4n-9-rich GPL and ADG were present in the three epididymal segments, they were significantly more concentrated in the corpus, the metabolically most active region of the epididymis. Our results suggest an active involvement of epididymal cells in the lipid remodeling undergone by spermatozoa during their maturation, most of which takes place before the mature gametes are stored in the cauda region.Fil: Luquez, Jessica Mariela. 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: Oresti, Gerardo Martin. 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: Aveldaño, Marta Isabel. 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: Furland, Natalia Edith. 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; ArgentinaXXVI Reunión Anual Sociedad Argentina de Investigación en Bioquímica y Biología MolecularPuerto MadrynArgentinaSociedad Argenina de investigación en Bioquímica y Biología MolecularInstituto de Histología y Embriología “Dr. Mario H. Burgos”2010info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectCongresoJournalhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/244980Lipids with long chain polyenoic fatty acids (PUFA) of the n-9 series in rat epididymal cells; XXVI Reunión Anual Sociedad Argentina de Investigación en Bioquímica y Biología Molecular; Puerto Madryn; Argentina; 2010; 91-910327-95451667-5746CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://newsite.saib.org.ar/publicaciones/Nacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:48:51Zoai:ri.conicet.gov.ar:11336/244980instacron: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 09:48:51.901CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Lipids with long chain polyenoic fatty acids (PUFA) of the n-9 series in rat epididymal cells |
title |
Lipids with long chain polyenoic fatty acids (PUFA) of the n-9 series in rat epididymal cells |
spellingShingle |
Lipids with long chain polyenoic fatty acids (PUFA) of the n-9 series in rat epididymal cells Luquez, Jessica Mariela EPIDIDYMIS PLASMALOGENS ETHER-LINKED TRIGLYCERIDES n-9 POLYUNSATURATED FATTY ACIDS |
title_short |
Lipids with long chain polyenoic fatty acids (PUFA) of the n-9 series in rat epididymal cells |
title_full |
Lipids with long chain polyenoic fatty acids (PUFA) of the n-9 series in rat epididymal cells |
title_fullStr |
Lipids with long chain polyenoic fatty acids (PUFA) of the n-9 series in rat epididymal cells |
title_full_unstemmed |
Lipids with long chain polyenoic fatty acids (PUFA) of the n-9 series in rat epididymal cells |
title_sort |
Lipids with long chain polyenoic fatty acids (PUFA) of the n-9 series in rat epididymal cells |
dc.creator.none.fl_str_mv |
Luquez, Jessica Mariela Oresti, Gerardo Martin Aveldaño, Marta Isabel Furland, Natalia Edith |
author |
Luquez, Jessica Mariela |
author_facet |
Luquez, Jessica Mariela Oresti, Gerardo Martin Aveldaño, Marta Isabel Furland, Natalia Edith |
author_role |
author |
author2 |
Oresti, Gerardo Martin Aveldaño, Marta Isabel Furland, Natalia Edith |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
EPIDIDYMIS PLASMALOGENS ETHER-LINKED TRIGLYCERIDES n-9 POLYUNSATURATED FATTY ACIDS |
topic |
EPIDIDYMIS PLASMALOGENS ETHER-LINKED TRIGLYCERIDES n-9 POLYUNSATURATED FATTY ACIDS |
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 rats, epididymal sperm maturation is associated with the acquisition of glycerophospholipids (GPL) with uncommon C20- C24 carbon PUFA of the n-9 series, particularly 22:4n-9-rich plasmenylcholine. Little is known about how the epididymal epithelium participates in this accretion. In this study, three epididymal regions (caput, corpus, cauda) were isolated for lipid and fatty acid analysis. Unexpectedly, the main n-9 PUFA-rich epididymal GPL including plasmalogens were those of ethanolamine rather than those of choline. Epididymal triacylglycerols (TAG) were highly enriched in 18:1n-9, a precursor of 22:4n-9, whereas the ether-linked triglycerides (ADG), as the GPL, were rich in C20-C24 n-9 PUFA (mainly 22:4n-9). The epididymal n-9 PUFA-rich ADG were made up by important proportions of 1-O-alkyl and 1-alk-1´enyl diacylglycerols. This contrasts with the ADG of testis, where the former subclass predominates over the latter and both are rich in 22:5n-6. Although 22:4n-9-rich GPL and ADG were present in the three epididymal segments, they were significantly more concentrated in the corpus, the metabolically most active region of the epididymis. Our results suggest an active involvement of epididymal cells in the lipid remodeling undergone by spermatozoa during their maturation, most of which takes place before the mature gametes are stored in the cauda region. Fil: Luquez, Jessica Mariela. 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: Oresti, Gerardo Martin. 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: Aveldaño, Marta Isabel. 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: Furland, Natalia Edith. 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 XXVI Reunión Anual Sociedad Argentina de Investigación en Bioquímica y Biología Molecular Puerto Madryn Argentina Sociedad Argenina de investigación en Bioquímica y Biología Molecular |
description |
In rats, epididymal sperm maturation is associated with the acquisition of glycerophospholipids (GPL) with uncommon C20- C24 carbon PUFA of the n-9 series, particularly 22:4n-9-rich plasmenylcholine. Little is known about how the epididymal epithelium participates in this accretion. In this study, three epididymal regions (caput, corpus, cauda) were isolated for lipid and fatty acid analysis. Unexpectedly, the main n-9 PUFA-rich epididymal GPL including plasmalogens were those of ethanolamine rather than those of choline. Epididymal triacylglycerols (TAG) were highly enriched in 18:1n-9, a precursor of 22:4n-9, whereas the ether-linked triglycerides (ADG), as the GPL, were rich in C20-C24 n-9 PUFA (mainly 22:4n-9). The epididymal n-9 PUFA-rich ADG were made up by important proportions of 1-O-alkyl and 1-alk-1´enyl diacylglycerols. This contrasts with the ADG of testis, where the former subclass predominates over the latter and both are rich in 22:5n-6. Although 22:4n-9-rich GPL and ADG were present in the three epididymal segments, they were significantly more concentrated in the corpus, the metabolically most active region of the epididymis. Our results suggest an active involvement of epididymal cells in the lipid remodeling undergone by spermatozoa during their maturation, most of which takes place before the mature gametes are stored in the cauda region. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/conferenceObject Congreso Journal 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/11336/244980 Lipids with long chain polyenoic fatty acids (PUFA) of the n-9 series in rat epididymal cells; XXVI Reunión Anual Sociedad Argentina de Investigación en Bioquímica y Biología Molecular; Puerto Madryn; Argentina; 2010; 91-91 0327-9545 1667-5746 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/244980 |
identifier_str_mv |
Lipids with long chain polyenoic fatty acids (PUFA) of the n-9 series in rat epididymal cells; XXVI Reunión Anual Sociedad Argentina de Investigación en Bioquímica y Biología Molecular; Puerto Madryn; Argentina; 2010; 91-91 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://newsite.saib.org.ar/publicaciones/ |
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.coverage.none.fl_str_mv |
Nacional |
dc.publisher.none.fl_str_mv |
Instituto de Histología y Embriología “Dr. Mario H. Burgos” |
publisher.none.fl_str_mv |
Instituto de Histología y Embriología “Dr. Mario H. Burgos” |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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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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13.070432 |