Implantation. The role of proteinases, and blockage of implantation by proteinase inhibitors.
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منابع مشابه
Implantation Serine Proteinase 1 Exhibits Mixed Substrate Specificity that Silences Signaling via Proteinase-Activated Receptors
Implantation S1 family serine proteinases (ISPs) are tryptases involved in embryo hatching and uterine implantation in the mouse. The two different ISP proteins (ISP1 and ISP2) have been detected in both pre- and post-implantation embryo tissue. To date, native ISP obtained from uterus and blastocyst tissues has been isolated only as an active hetero-dimer that exhibits trypsin-like substrate s...
متن کاملThe embryo's cystatin C and F expression functions as a protective mechanism against the maternal proteinase cathepsin S in mice.
A successful implantation of a mammalian embryo into the maternal endometrium depends on a highly synchronized fetal-maternal dialogue involving chemokines, growth factors, and matrix-modifying enzymes. A growing body of evidence suggests an important role for proteinases playing a role in matrix degeneration and enhancing the embryo's invasive capacity and influencing the mother's immunologica...
متن کاملThe expression and function of cystatin C and cathepsin B and cathepsin L during mouse embryo implantation and placentation.
The implantation of the mouse embryo requires the controlled invasion of the uterine stroma by the embryonic trophoblast. This event is dependent, in part, on the secretion of matrix metalloproteinases and serine proteinases for the extracellular degradation of the uterine matrix. Proteinase activity is controlled by stromal decidualization and specific proteinase inhibitors. This work adds to ...
متن کاملInteraction oi Proteinase Inhibitors with Blastocyst Proteinases involved in Implantation
RABBIT blastocysts exhibit a remarkable proteinase activity during the first (abembryonic) phase of implantation in the uterus. The activity becomes detectable around 6 days post-coitum (d p.c.) and rises rapidly until 7-7'/3 d p.c. when syncytial trophoblastic "knobs" penetrate the extracellular blastocyst coverings and establish contact to the uterine epithelium; thereafter blast~cyst protein...
متن کاملPartial purification and characterization of a trypsin-like proteinase from rabbit preimplantation uterine fluid.
Previous investigations have proved that proteinases are involved in implantation of the rabbit embryo into the uterine tissues. This study describes a trypsin-like enzyme found in the blastocyst fluid and uterine flushings at the time of implantation. The proteinase isolated from uterine flushings has a molecular mass of about 50 kDa and exists in two differently charged forms of pI 4.0 and 4....
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عنوان ژورنال:
- Advances in anatomy, embryology, and cell biology
دوره 53 5 شماره
صفحات -
تاریخ انتشار 1977