Klf5 regulates lineage formation in the pre-implantation mouse embryo

Klf5 regulates lineage formation in the pre-implantation mouse embryo.

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) ...

A Legal Jurisprudential Deliberation on Lineage and Inheritance of the Pre-Implantation Embryo

Determination the Effects of Epidermal Growth Factor on Developmental Rates of Pre-Implantation Mouse Embryo

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...

BMP signalling regulates the pre-implantation development of extra-embryonic cell lineages in the mouse embryo

Pre-implantation development requires the specification and organization of embryonic and extra-embryonic lineages. The separation of these lineages takes place when asymmetric divisions generate inside and outside cells that differ in polarity, position and fate. Here we assess the global transcriptional identities of these precursor cells to gain insight into the molecular mechanisms regulati...

The Effect of Nitric Oxide on Mouse Pre-Implantation Embryo Development and Apoptosis

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...