Morphological Organization of the Mouse Preimplantation Embryo

被引:0
作者
Toshihiko Fujimori
Yoko Kurotaki
Kouji Komatsu
Yo-ichi Nabeshima
机构
[1] Kyoto University,Department of Pathology and Tumor Biology, Graduate School of Medicine
[2] Japan Science and Technology Agency (JST),Core Research for Evolutional Science and Technology (CREST)
[3] Kiba Park Clinic,undefined
来源
Reproductive Sciences | 2009年 / 16卷
关键词
Blastocyst; mouse; differentiation; axis;
D O I
暂无
中图分类号
学科分类号
摘要
During the 4 days after fertilization, the mouse embryo proceeds in its development within the zona pellucida and reaches the blastocyst stage, when a newly formed embryonic-abembryonic (E-Ab) axis is settled before implantation. The previous findings suggested that the shape of the zona pellucida, which may function as an environmental cue for the embryo proper, is a major factor affecting the specification of the blastocyst axis orientation. The characteristics of the cells were not dependent on the shape of the zona pellucida. It is suggested that the division order of cells is under certain rules, and the differentiation of cells is dependent on the relative position of blastomeres in later stages.
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页码:171 / 177
页数:6
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