In vitro control of prostaglandin F2a synthesis in bovine endometrium

Detalhes bibliográficos
Autor(a) principal: Bertan, Claudia Maria
Data de Publicação: 2006
Outros Autores: Cunha, Pauline Martins da, Oliveira, Claudio Alvarenga de, Traldi, Anneliese de Souza, Binelli, Mario
Tipo de documento: Artigo
Idioma: por
Título da fonte: Brazilian Journal of Veterinary Research and Animal Science
Texto Completo: https://www.revistas.usp.br/bjvras/article/view/26487
Resumo: Synthesis of endometrial prostaglandin F2± (PGF2±) results from a complex cascade of highly coordinated intracellular events. Production of PGF2± can be stimulated by mellitin and 12, 13 phorbol dibutyrate (PDBu). Objective of the present study was to verify whether basal or stimulated synthesis of PGF2± was dependent on de novo protein synthesis. In Experiment 1, endometrial explants from cyclic, non-lactating cross-bred beef cows (n=2) on day 15 of the estrous cycle were incubated in quadruplicate in culture KHB culture medium or medium supplemented with 10-6M PDBu, 10-6M melittin or 10-5M melittin. Medium samples were collected immediately and 60 minutes after treatment administration and concentration of PGF2± in medium were measured by radioimmunoassay. Concentrations of PGF2± in medium were higher (P<0.06) after treatment with PDBu in comparison with control and melittin. In Experiment 2, endometrial explants from cyclic, non-lactating cross-bred beef cows (n=4) on day 17 of the estrous cycle were incubated in quadruplicate in medium supplemented with 0, 50, 100 or 200mg cyclohexamide (CHX) and 0 or 100ng/ml PDBu, in a 4 x 2 factorial arrangement. Medium samples were collected immediately and 60 minutes after administration of treatments and concentrations of PGF2± measured by radioimmunoassay. Endometrial integrity was was evaluated by histology. Treatment with PDBu stimulated production of PGF2± (P<0.01), regardless of concentration of CHX used. The CHX did not affect production of PGF2±, either in the presence or absence of PDBu. Histological integrity of explants was preserved. It was concluded that both basal and PDBu-stimulated PGF2± production are not dependent on new protein sythesis.
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spelling In vitro control of prostaglandin F2a synthesis in bovine endometriumControle da síntese de prostaglandina F2± no endométrio bovino in vitroBovinosProstaglandinaEstradiolEndométrioLuteóliseCattleProstaglandinEstradiolEndometriumLuteolysisSynthesis of endometrial prostaglandin F2± (PGF2±) results from a complex cascade of highly coordinated intracellular events. Production of PGF2± can be stimulated by mellitin and 12, 13 phorbol dibutyrate (PDBu). Objective of the present study was to verify whether basal or stimulated synthesis of PGF2± was dependent on de novo protein synthesis. In Experiment 1, endometrial explants from cyclic, non-lactating cross-bred beef cows (n=2) on day 15 of the estrous cycle were incubated in quadruplicate in culture KHB culture medium or medium supplemented with 10-6M PDBu, 10-6M melittin or 10-5M melittin. Medium samples were collected immediately and 60 minutes after treatment administration and concentration of PGF2± in medium were measured by radioimmunoassay. Concentrations of PGF2± in medium were higher (P<0.06) after treatment with PDBu in comparison with control and melittin. In Experiment 2, endometrial explants from cyclic, non-lactating cross-bred beef cows (n=4) on day 17 of the estrous cycle were incubated in quadruplicate in medium supplemented with 0, 50, 100 or 200mg cyclohexamide (CHX) and 0 or 100ng/ml PDBu, in a 4 x 2 factorial arrangement. Medium samples were collected immediately and 60 minutes after administration of treatments and concentrations of PGF2± measured by radioimmunoassay. Endometrial integrity was was evaluated by histology. Treatment with PDBu stimulated production of PGF2± (P<0.01), regardless of concentration of CHX used. The CHX did not affect production of PGF2±, either in the presence or absence of PDBu. Histological integrity of explants was preserved. It was concluded that both basal and PDBu-stimulated PGF2± production are not dependent on new protein sythesis.A síntese de prostaglandina F2± (PGF2±) endometrial, resulta de uma complexa cascata de eventos intracelulares que ocorrem de maneira altamente coordenada. A síntese de PGF2± pode ser estimulada na presença da melitina e do forbol 12,13 dibutirato (PDBu). O objetivo do presente estudo foi verificar se a produção basal e a estimulação aguda de PGF2± são dependentes da síntese de proteínas. No experimento 1, explantes obtidos de fêmeas bovinas (n=2), cíclicas, não lactantes, no dia 15 do ciclo estral foram incubados em quadruplicata, com meio de cultivo (KHB) ou KHB suplementado com PDBu 10-6M, melitina 10-6M ou melitina 10-5M. Amostras do meio foram coletadas 0 e 60 minutos após os tratamentos e as concentrações de PGF2± foram mensuradas por radioimunoensaio. Com 60 minutos após os tratamentos houve aumento das concentrações médias de PGF2± (P<0,06) em resposta ao tratamento com PDBu comparado ao grupo KHB e melitina. No experimento 2, explantes endometriais de fêmeas bovinas (n=4), não gestantes, no 17° dia do ciclo estral, pesando de 80 a 100mg foram incubados em KHB suplementado com 0, 50, 100 ou 200mg/mL de CHX e 0 ou 100ng/mL de PDBu em um arranjo fatorial 2 x 4, em quadruplicata. Amostras do meio foram coletadas 0 e 60 minutos após os tratamentos e as concentrações de PGF2± foram mensuradas por radioimunoensaio. A integridade dos explantes endometriais tratados com CHX foi avaliada por cortes histológicos. Foi observado aumento na produção de PGF2± em resposta ao tratamento com PDBu (P<0,01), entretanto, não houve diferenças na produção de PGF2± pelos tecidos tratados com diferentes concentrações de CHX, associadas ou não ao PDBu. A integridade histológica dos explantes foi preservada. Conclui-se que a produção basal e a estimulação aguda da síntese de PGF2± não são dependentes da síntese de novas proteínas.Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia2006-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/bjvras/article/view/2648710.11606/issn.1678-4456.bjvras.2006.26487Brazilian Journal of Veterinary Research and Animal Science; Vol. 43 Núm. 3 (2006); 387-393Brazilian Journal of Veterinary Research and Animal Science; Vol. 43 No. 3 (2006); 387-393Brazilian Journal of Veterinary Research and Animal Science; v. 43 n. 3 (2006); 387-393Brazilian Journal of Veterinary Research and Animal Science; V. 43 N. 3 (2006); 387-3931678-44561413-9596reponame:Brazilian Journal of Veterinary Research and Animal Scienceinstname:Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP)instacron:USPporhttps://www.revistas.usp.br/bjvras/article/view/26487/28270Bertan, Claudia MariaCunha, Pauline Martins daOliveira, Claudio Alvarenga deTraldi, Anneliese de SouzaBinelli, Marioinfo:eu-repo/semantics/openAccess2020-06-23T04:17:49Zoai:revistas.usp.br:article/26487Revistahttps://www.revistas.usp.br/bjvrasPUBhttps://www.revistas.usp.br/bjvras/oaibjvras@usp.br1413-95961413-9596opendoar:https://www.revistas.usp.br/bjvras/index2023-01-12T16:42:46.040769Brazilian Journal of Veterinary Research and Animal Science - Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP)false
dc.title.none.fl_str_mv In vitro control of prostaglandin F2a synthesis in bovine endometrium
Controle da síntese de prostaglandina F2± no endométrio bovino in vitro
title In vitro control of prostaglandin F2a synthesis in bovine endometrium
spellingShingle In vitro control of prostaglandin F2a synthesis in bovine endometrium
Bertan, Claudia Maria
Bovinos
Prostaglandina
Estradiol
Endométrio
Luteólise
Cattle
Prostaglandin
Estradiol
Endometrium
Luteolysis
title_short In vitro control of prostaglandin F2a synthesis in bovine endometrium
title_full In vitro control of prostaglandin F2a synthesis in bovine endometrium
title_fullStr In vitro control of prostaglandin F2a synthesis in bovine endometrium
title_full_unstemmed In vitro control of prostaglandin F2a synthesis in bovine endometrium
title_sort In vitro control of prostaglandin F2a synthesis in bovine endometrium
author Bertan, Claudia Maria
author_facet Bertan, Claudia Maria
Cunha, Pauline Martins da
Oliveira, Claudio Alvarenga de
Traldi, Anneliese de Souza
Binelli, Mario
author_role author
author2 Cunha, Pauline Martins da
Oliveira, Claudio Alvarenga de
Traldi, Anneliese de Souza
Binelli, Mario
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Bertan, Claudia Maria
Cunha, Pauline Martins da
Oliveira, Claudio Alvarenga de
Traldi, Anneliese de Souza
Binelli, Mario
dc.subject.por.fl_str_mv Bovinos
Prostaglandina
Estradiol
Endométrio
Luteólise
Cattle
Prostaglandin
Estradiol
Endometrium
Luteolysis
topic Bovinos
Prostaglandina
Estradiol
Endométrio
Luteólise
Cattle
Prostaglandin
Estradiol
Endometrium
Luteolysis
description Synthesis of endometrial prostaglandin F2± (PGF2±) results from a complex cascade of highly coordinated intracellular events. Production of PGF2± can be stimulated by mellitin and 12, 13 phorbol dibutyrate (PDBu). Objective of the present study was to verify whether basal or stimulated synthesis of PGF2± was dependent on de novo protein synthesis. In Experiment 1, endometrial explants from cyclic, non-lactating cross-bred beef cows (n=2) on day 15 of the estrous cycle were incubated in quadruplicate in culture KHB culture medium or medium supplemented with 10-6M PDBu, 10-6M melittin or 10-5M melittin. Medium samples were collected immediately and 60 minutes after treatment administration and concentration of PGF2± in medium were measured by radioimmunoassay. Concentrations of PGF2± in medium were higher (P<0.06) after treatment with PDBu in comparison with control and melittin. In Experiment 2, endometrial explants from cyclic, non-lactating cross-bred beef cows (n=4) on day 17 of the estrous cycle were incubated in quadruplicate in medium supplemented with 0, 50, 100 or 200mg cyclohexamide (CHX) and 0 or 100ng/ml PDBu, in a 4 x 2 factorial arrangement. Medium samples were collected immediately and 60 minutes after administration of treatments and concentrations of PGF2± measured by radioimmunoassay. Endometrial integrity was was evaluated by histology. Treatment with PDBu stimulated production of PGF2± (P<0.01), regardless of concentration of CHX used. The CHX did not affect production of PGF2±, either in the presence or absence of PDBu. Histological integrity of explants was preserved. It was concluded that both basal and PDBu-stimulated PGF2± production are not dependent on new protein sythesis.
publishDate 2006
dc.date.none.fl_str_mv 2006-06-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://www.revistas.usp.br/bjvras/article/view/26487
10.11606/issn.1678-4456.bjvras.2006.26487
url https://www.revistas.usp.br/bjvras/article/view/26487
identifier_str_mv 10.11606/issn.1678-4456.bjvras.2006.26487
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://www.revistas.usp.br/bjvras/article/view/26487/28270
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia
publisher.none.fl_str_mv Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia
dc.source.none.fl_str_mv Brazilian Journal of Veterinary Research and Animal Science; Vol. 43 Núm. 3 (2006); 387-393
Brazilian Journal of Veterinary Research and Animal Science; Vol. 43 No. 3 (2006); 387-393
Brazilian Journal of Veterinary Research and Animal Science; v. 43 n. 3 (2006); 387-393
Brazilian Journal of Veterinary Research and Animal Science; V. 43 N. 3 (2006); 387-393
1678-4456
1413-9596
reponame:Brazilian Journal of Veterinary Research and Animal Science
instname:Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP)
instacron:USP
instname_str Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP)
instacron_str USP
institution USP
reponame_str Brazilian Journal of Veterinary Research and Animal Science
collection Brazilian Journal of Veterinary Research and Animal Science
repository.name.fl_str_mv Brazilian Journal of Veterinary Research and Animal Science - Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP)
repository.mail.fl_str_mv bjvras@usp.br
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