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Conserved Roles of Fibroblast Growth Factor Receptor 2 Signaling in the Regulation of Inner Cell Mass Development in Bovine Blastocysts

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Title: Conserved Roles of Fibroblast Growth Factor Receptor 2 Signaling in the Regulation of Inner Cell Mass Development in Bovine Blastocysts
Authors: Akizawa, Hiroki Browse this author
Nagatomo, Hiroaki Browse this author
Odagiri, Haruka Browse this author
Kohri, Nanami Browse this author
Yamauchi, Nobuhiko Browse this author →KAKEN DB
Yanagawa, Yojiro Browse this author
Nagano, Masashi Browse this author →KAKEN DB
Takahashi, Masashi Browse this author →KAKEN DB
Kawahara, Manabu Browse this author →KAKEN DB
Keywords: fibroblast growth factor signaling
inner cell mass
bovine
blastocyst
cell-lineage specification
Issue Date: Jun-2016
Publisher: Wiley-Blackwell
Journal Title: Molecular reproduction and development
Volume: 83
Issue: 6
Start Page: 516
End Page: 525
Publisher DOI: 10.1002/mrd.22646
PMID: 27060901
Abstract: A common process during preimplantation mammalian development is blastocyst formation, which utilizes signaling through fibroblast growth factor receptor 2 (FGFR2), yet the mechanisms through which FGFR2 signaling affect preimplantation development in bovine embryos remain incompletely understood. Here, we used RNA-interference to investigate the in vitro development, the frequency of blastomere apoptosis, and the mRNA expression of developmental marker genes in FGF receptor 2-knockdown (FGFR2-KD) bovine embryos. A reduction in FGFR2 mRNA did not affect preimplantation development or the frequency of apoptotic blastomeres, but did enhanced proliferation of the inner cell mass in blastocysts (P< 0.05) -which differs from the phenotype reported for bovine embryos using a pharmacological approach (treatment with the pan-FGFR blocker PD173074), but agrees with previous results obtained using mouse embryos. Moreover, the expression of an epiblast marker gene, NANOG, and a primitive endoderm marker gene, GATA6, remained unchanged, whereas the expression of another primitive endoderm marker gene, HNF4A, was significantly reduced in FGFR2-KD embryos. Therefore, FGFR2 signaling appears to be associated with the regulation of inner cell mass development and proliferation during blastocyst formation in cattle.
Rights: This is the peer reviewed version of the following article: Molecular reproduction and development;83(6), pp516-525, 2017, which has been published in final form at 10.1002/mrd.22646. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving
Type: article (author version)
URI: http://hdl.handle.net/2115/65786
Appears in Collections:農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 川原 学

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