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Inhibition of Tumor Invasion of Smooth Muscle Cell Layers by Recombinant

By Yves A. Declerck, Tsuey-dawn Yean, Darkin Chan, Et Al, Contact The Aacr Publications, Human Metalloproteinase Inhibitor, Yves A. Declerck, Tsuey-dawn Yean, Darkin Chan, Hiroyuki Shimada and Keith E. Langley


Matrix metalloproteinases secreted by tumor cells play an important role in the proteolytic degradation of the extracellular matrix during invasion. In a previous study, we showed that the degradation of extra cellular matrices by human HT 1080 fibrosarcoma cells is suppressed by endothelial cells. The identification of inhibitors of metalloproteinases secreted by endothelial cells led us to postulate that these inhibitors were responsible for the suppressive effect (Cancer Res., 46: 3580-3586, 1986). In the present study, we have investigated the inhibitory activity of one of these inhibitors designated metalloproteinase inhibitor (MI)/t issue inhibitor of metalloproteinases (TIMP)-2 on the degradation and invasion of rat smooth muscle cell matrices by two invasive tumor cell lines, the c-Ha-caî-1transfected rat embryo cell line 4R and the HT 1080 human fibrosarcoma cell line. The inhibitor was obtained in recombinant for

Year: 2013
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