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The matrix-inserted surface transplantation model is an in vivo assay used to analyse the kinetics of tumor–vessel interactions during different stages of skin carcinoma progression. This system allows the study of host–tumor interface, i.e. penetration of tumor cells into normal host tissue as well as infiltration of normal host cells into the tumor. In the present study, image analysis algorithms...
Clearance of fibrin deposits within the human placenta is an ongoing process during normal placental development. Plasminogen is a circulating fibrinolytic protease zymogen activated in situ by plasminogen activators. We have previously reported that the receptor for urokinase plasminogen activator (uPAR) is expressed by cells either covering or enmeshed within the perivillous fibrinoid deposits....
An intimately regulated cell surface activation of matrix metalloproteinases (MMPs) is believed to be of critical importance for the control of trophoblast invasion. A histological investigation of the expression and localization of three different MMPs, the membrane-type matrix metalloproteinases 1 and 2 (MT1-MMP, MT2-MMP) and matrix metalloproteinase 2 (MMP-2/gelatinase A) was performed by in situ...
Using 3' RACE (rapid amplification of cDNA ends), we have isolated a cDNA variant for the receptor for human urokinase plasminogen activator (uPAR). The deduced protein includes the amino-terminal ligand binding domain in uPAR, but lacks the carboxy-terminal membrane attachment by a glycolipid anchor. Genomic DNA analysis showed that the uPAR mRNA variant is generated by alternative splicing. The...
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