Trophectoderm projections: a potential means for locomotion, attachment and implantation of bovine, equine and human blastocysts.

@article{Gonzales1996TrophectodermPA,
  title={Trophectoderm projections: a potential means for locomotion, attachment and implantation of bovine, equine and human blastocysts.},
  author={Dominique Gonzales and Julie M. Jones and T Pinyopummintr and Elaine M. Carnevale and O. J. Ginther and Sandor S. Shapiro and Barry D. Bavister},
  journal={Human reproduction},
  year={1996},
  volume={11 12},
  pages={2739-45}
}
The behaviour of bovine, equine and human blastocysts was studied in vitro by time-lapse videomicrography and computer imaging. This study revealed that cytoplasmic extensions of the trophectoderm ['trophectoderm projections' (TEP)] were expressed by embryos of all three species, prior to or during zona escape. Bovine and human blastocysts escaped their zonae with a combination of blastocoele expansion, collapse and re-expansion coupled with the penetration of the zona pellucida by TEP. In… CONTINUE READING