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choriocarcinoma/protease
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Página 1 desde 31 resultados
Leukemia inhibitory factor triggers activation of signal transducer and activator of transcription 3, proliferation, invasiveness, and altered protease expression in choriocarcinoma cells.
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Extravillous trophoblast cells resemble cancer cells with regard to their intrinsic invasiveness. They invade decidual tissue, but, unlike tumor cells, shut down their invasive properties, when they become inappropriate. Stimuli involved in the modulation of invasion, as well as their underlying
Immunohistochemical localization of thrombomodulin in chorionic diseases of the uterus and choriocarcinoma of the stomach. A comparative study with the distribution of human chorionic gonadotropin.
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Thrombomodulin (TM) is a newly described protein that functions as a potent natural anticoagulant by converting thrombin from a procoagulant protease to an anticoagulant. TM is found on endothelium of the blood and lymph vessels and on syncytiotrophoblast of the placenta in humans. In the current
Expression of cathepsin P mRNA, protein and activity in the rat choriocarcinoma cell line, Rcho-1, during giant cell transformation.
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Lysosomal proteases perform critical functions in protein turnover and are essential for normal growth and development. Cathepsin P is a member of a newly discovered family of lysosomal cysteine proteases uniquely expressed in rodent placenta (PECs), and is closely related to human cathepsin L.
Interleukin-12 augments cytolytic activity of peripheral and decidual lymphocytes against choriocarcinoma cell lines and primary culture human placental trophoblasts.
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OBJECTIVE
Human trophoblasts are tolerant to the maternal immune system, but susceptible to interleukin (IL)-2-activated lymphocytes. IL-12 is also a key cytokine in the induction of cytotoxic responses. We administered IL-12 to peripheral blood lymphocytes (PBLs) and to decidual lymphocytes (DLs)
Expression pattern alterations of the serine protease HtrA1 in normal human placental tissues and in gestational trophoblastic diseases.
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HtrA1 is a secreted protein which behaves as a molecular chaperone at low temperatures and as a serine protease at high temperatures. When the placenta escapes the normal growth control mechanisms, which are present during normal pregnancy, it may develop trophoblastic diseases, such as hydatidiform
Mechanisms of trophoblast invasiveness and their control: the role of proteases and protease inhibitors.
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Implantation and subsequent placental development in many species including the human are dependent on trophoblast invasion of the uterine epithelium, the underlying basement membrane, connective tissue and blood vessels. However, trophoblast invasion in situ is strictly controlled by the
Characterization of an immunosuppressive factor secreted by a human trophoblast-derived choriocarcinoma cell line.
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Factors and cells of placental origin have been considered to be important in mediating local active immunosuppression that regulates maternal immune reactivity to aid fetal survival. In this context, we investigated the immunosuppressive capabilities of supernatants from human trophoblast-derived
Altered form of placental alkaline phosphatase produced by JAR choriocarcinoma cells in culture.
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The alkaline phosphatase activity expressed by JAR choriocarcinoma cells was compared to the placental isoenzyme of human alkaline phosphatase by several criteria. JAR cell alkaline phosphatase was similar to the placental isoenzyme with respect to heat and urea stability and sensitivity to most
Reduced syncytin-1 expression in choriocarcinoma BeWo cells activates the calpain1-AIF-mediated apoptosis, implication for preeclampsia.
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Placentas associated with preeclampsia are characterized by extensive apoptosis in trophoblast lineages. Syncytin-1 (HERVWE1) mediates the fusion of cytotrophoblasts to form syncytiotrophoblasts, which assume the placental barrier, fetal-maternal exchange and endocrine functions. While decreased
Protein processing by the placental protease, cathepsin P.
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Cathepsin P is a member of a family of placentally expressed cathepsins (PECs). The closest human homolog of cathepsin P is cathepsin L, a broad specificity enzyme that has functions in many tissues in addition to placenta. The gene duplications that gave rise to the PECs provide a rare opportunity
Comparative analysis of the invasion-associated genes expression pattern in first trimester trophoblastic (HTR-8/SVneo) and JEG-3 choriocarcinoma cells.
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Several cellular models of trophoblast have been proposed to understand their invasion. We had reported that JEG-3 and HTR-8/SVneo cells show differential invasive behavior in response to IL-11 treatment. So, the present study aims to compare the expression of invasion-associated molecules in these
Protein C and its inhibitor in malignancy.
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Activated protein C (APC) and protein C inhibitor (PCI) are the major components of the anticoagulant protein C pathway. Recently, APC and PCI have been demonstrated to play many roles not only in the regulation of hemostasis but also in cell inflammation, proliferation, apoptosis, tumor cell
The occurrence of nicked human chorionic gonadotropin (hCG) by a thermolytic endoprotease.
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A nicked form of human chorionic gonadotropin (nicked hCG), in which only one peptide bond between residues 47 and 48 (-Gly-Val-) of beta-subunit is cleaved, has been found in the urine and blood of pregnant women. In this study, we investigated the occurrence of nicked hCG and the localization of
Identification and characterization of the cell-associated binding protein for urinary trypsin inhibitor.
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Urinary trypsin inhibitor (UTI) inhibits not only tumor cell invasion but also production of experimental and spontaneous metastasis. Cell-binding experiments indicated that human choriocarcinoma SMT-cc1 cells have specific binding sites for UTI on their cell surface. [Kobayashi et al., J. Biol.
Invasion of cytotrophoblastic JEG-3 cells is stimulated by hCG in vitro.
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Trophoblast invasion into the uterine wall is controlled by many factors. Previously, a human chorionic gonadotropin (hCG) receptor has been found to be expressed on invasive trophoblast as well as on choriocarcinoma cells implying a possible role for the hormone in trophoblast invasion. Therefore,
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