Expression and Potential Role of GATA Factors in Trophoblast Development

  • BAI Hanako
    Laboratory of Animal Breeding, Graduate School of Agricultural and Life Science, The University of Tokyo, Tokyo 113-8657, Japan Research Fellow of the Japan Society for the Promotion of Science (JSPS Research Fellow)
  • SAKURAI Toshihiro
    Laboratory of Animal Breeding, Graduate School of Agricultural and Life Science, The University of Tokyo, Tokyo 113-8657, Japan
  • GODKIN James D.
    Department of Animal Science, University of Tennessee, Knoxville, TN 37996, USA
  • IMAKAWA Kazuhiko
    Laboratory of Animal Breeding, Graduate School of Agricultural and Life Science, The University of Tokyo, Tokyo 113-8657, Japan

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Despite exhaustive studies, molecular mechanisms governing blastocyst formation, implantation to the uterine endometrium and placentation have not been definitively characterized. GATA family proteins are a group of zinc finger transcription factors, for which gene ablations eventually result in embryonic death later in pregnancy. These findings suggested that GATA factors are not essential for early embryonic development. However, recent studies from our laboratory and others have revealed that GATA proteins are involved in the regulation of key genes expressed by the trophectoderm that underpin the transition from the morula to trophoblast, and trophectoderm maintenance. Consequently, it is important to consider the current understanding how GATA factors govern early trophectoderm development.

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