Origin of cellular asymmetries in the pre-implantation mouse embryo: a hypothesis
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چکیده
منابع مشابه
Origin of cellular asymmetries in the pre-implantation mouse embryo: a hypothesis.
The first cell fate decision during mouse development concerns whether a blastomere will contribute to the inner cell mass (ICM; which gives rise to the embryo proper) or to trophectoderm (TE; which gives rise to the placenta). The position of a cell within an 8- to 16-cell-stage embryo correlates with its future fate, with outer cells contributing to TE and inner cells to the ICM. It remains u...
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Purpose: To determine the effects of different doses of addition of exogenous epidermal growth factor (EGF) on development of pre-implantation mouse embryo. Materials and Methods: Mouse zygotes, two cell, 8 cell any morulae were collected from superovulated NMRI mice 24, 48, 64 and 80 hrs after hCG injection, respectively. The obtained embryos were cultured on medium alone, medium with 1, 4 an...
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Clinical studies have shown that in pathological conditions such as endometriosis and reproductive tract infection (male and female) there is an activation status of macrophages that produce large quantities of nitric oxide (NO) in addition to other effector molecules. Large amounts of NO may have embryotoxic roles and produce infertility. This study was designed to evaluate the effect of diffe...
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Kruppel-like transcription factors (Klfs) are essential for the induction and maintenance of pluripotency of embryonic stem cells (ESCs), yet little is known about their roles in establishing the three lineages of the pre-implantation embryo. Here, we show that Klf5 is required for the formation of the trophectoderm (TE) and the inner cell mass (ICM), and for repressing primitive endoderm (PE) ...
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Mouse pre-implantation development gives rise to the blastocyst, which is made up of at least three distinct cell types: the trophectoderm (TE) that surrounds a cavity, and an inner cell mass (ICM) comprising the primitive endoderm (PE) and epiblast (EPI). However, the underlying mechanisms involved in patterning the cleavage-stage embryo are still unresolved. By analyzing the distribution of t...
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ژورنال
عنوان ژورنال: Philosophical Transactions of the Royal Society B: Biological Sciences
سال: 2014
ISSN: 0962-8436,1471-2970
DOI: 10.1098/rstb.2013.0536