Animal cells and systems

The Korean Society for Integrative Biology (한국통합생물학회)
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Genetic Approach to Identify Critical Factors for Mouse Early Embryogenesis

  • Park, Joon-Hyun (Department of Biological Sciences and Research Center for Functional Cellulomics, Seoul National University) ;
  • Kim, Ji-Soo (Department of Biological Sciences and Research Center for Functional Cellulomics, Seoul National University) ;
  • Sonn, Sung-Keun (Department of Biological Sciences and Research Center for Functional Cellulomics, Seoul National University) ;
  • Rhee, Kun-Soo (Department of Biological Sciences and Research Center for Functional Cellulomics, Seoul National University)
  • Published : 2006.03.31
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Abstract

Development of the mammalian pre-implantation embryos has unique features, such as a slow and unsynchronized cell division, compaction, and eventual formation of blastocysts with inner cell mass and trophectoderm. In order to have a clue on molecular mechanisms that reside in mouse early development, we suppressed expression of early embryo-specific genes with RNAi and observed their development in vitro. We observed developmental defects in embryos microinjected with dsRNAs for Oct4 or Nanog among the tested genes. Careful examinations revealed that development of the most of the Oct4- or Nanog-suppressed embryos were arrested at the morula stage. These results suggest that the Oct4 and Nanog activities are also required for embryogenesis earlier than the blastocyst stage.

Keywords

References

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