Embryonic stem-like cells derived from in vitro produced bovine blastocysts

The aim of this work was to study the derivation of bovine embryonic stem-like (ES-like) cells from the inner cell mass (ICM) of in vitro produced blastocysts. The ICMs were mechanically isolated and six out of seventeen (35%) ICMs could attach to a monolayer of murine embryonic fibroblasts (MEF). T...

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Main Authors: Erika Regina Leal de Freitas, Bruno Valente Sanches, Maria Lúcia Gambarini, Benedito Dias Oliveira Filho, Lidia Andreu Guillo
Format: Article
Language:English
Published: Instituto de Tecnologia do Paraná (Tecpar) 2011-06-01
Series:Brazilian Archives of Biology and Technology
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000300009
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author Erika Regina Leal de Freitas
Bruno Valente Sanches
Maria Lúcia Gambarini
Benedito Dias Oliveira Filho
Lidia Andreu Guillo
author_facet Erika Regina Leal de Freitas
Bruno Valente Sanches
Maria Lúcia Gambarini
Benedito Dias Oliveira Filho
Lidia Andreu Guillo
author_sort Erika Regina Leal de Freitas
collection DOAJ
description The aim of this work was to study the derivation of bovine embryonic stem-like (ES-like) cells from the inner cell mass (ICM) of in vitro produced blastocysts. The ICMs were mechanically isolated and six out of seventeen (35%) ICMs could attach to a monolayer of murine embryonic fibroblasts (MEF). Ten days after, primary outgrowths were mechanically dissected into several small clumps and transferred to a new MEF layer. Cells were further propagated and passaged by physical dissociation over a 60 days period. The pluripotency of the bovine ES-like cells was confirmed by RT-PCR of Oct-4 and STAT-3 gene markers. The colonies were weakly stained for alkaline phosphatase and the mesoderm and endoderm differentiation gene markers such as GATA-4 and Flk-1, respectively, were not expressed. Embryoid bodies were spontaneously formed at the seventh passage. Results showed that bovine ES-like cells could be obtained and passaged by mechanical procedures from the fresh in vitro produced blastocysts.
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spelling doaj.art-047c3195f89b4535befd36a8b414f6252022-12-21T18:19:28ZengInstituto de Tecnologia do Paraná (Tecpar)Brazilian Archives of Biology and Technology1516-89131678-43242011-06-0154349550210.1590/S1516-89132011000300009Embryonic stem-like cells derived from in vitro produced bovine blastocystsErika Regina Leal de FreitasBruno Valente SanchesMaria Lúcia GambariniBenedito Dias Oliveira FilhoLidia Andreu GuilloThe aim of this work was to study the derivation of bovine embryonic stem-like (ES-like) cells from the inner cell mass (ICM) of in vitro produced blastocysts. The ICMs were mechanically isolated and six out of seventeen (35%) ICMs could attach to a monolayer of murine embryonic fibroblasts (MEF). Ten days after, primary outgrowths were mechanically dissected into several small clumps and transferred to a new MEF layer. Cells were further propagated and passaged by physical dissociation over a 60 days period. The pluripotency of the bovine ES-like cells was confirmed by RT-PCR of Oct-4 and STAT-3 gene markers. The colonies were weakly stained for alkaline phosphatase and the mesoderm and endoderm differentiation gene markers such as GATA-4 and Flk-1, respectively, were not expressed. Embryoid bodies were spontaneously formed at the seventh passage. Results showed that bovine ES-like cells could be obtained and passaged by mechanical procedures from the fresh in vitro produced blastocysts.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000300009Bovine blastocystsICM isolationEmbryonic stem cellsGene markers
spellingShingle Erika Regina Leal de Freitas
Bruno Valente Sanches
Maria Lúcia Gambarini
Benedito Dias Oliveira Filho
Lidia Andreu Guillo
Embryonic stem-like cells derived from in vitro produced bovine blastocysts
Brazilian Archives of Biology and Technology
Bovine blastocysts
ICM isolation
Embryonic stem cells
Gene markers
title Embryonic stem-like cells derived from in vitro produced bovine blastocysts
title_full Embryonic stem-like cells derived from in vitro produced bovine blastocysts
title_fullStr Embryonic stem-like cells derived from in vitro produced bovine blastocysts
title_full_unstemmed Embryonic stem-like cells derived from in vitro produced bovine blastocysts
title_short Embryonic stem-like cells derived from in vitro produced bovine blastocysts
title_sort embryonic stem like cells derived from in vitro produced bovine blastocysts
topic Bovine blastocysts
ICM isolation
Embryonic stem cells
Gene markers
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000300009
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AT brunovalentesanches embryonicstemlikecellsderivedfrominvitroproducedbovineblastocysts
AT marialuciagambarini embryonicstemlikecellsderivedfrominvitroproducedbovineblastocysts
AT beneditodiasoliveirafilho embryonicstemlikecellsderivedfrominvitroproducedbovineblastocysts
AT lidiaandreuguillo embryonicstemlikecellsderivedfrominvitroproducedbovineblastocysts