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Ten primary cultures from invasive urothelial carcinomas were studied by light and electron microscopy. In all cultures, cells with accumulations of glycosaminoglycans were observed. Long membrane extensions with accumulations of glycosaminoglycans invaded neighboring cells and formed an extracellular matrix as well. The extracellular matrix inhibited cell proliferation and enhanced tumor nodule formation.
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| http://dx.doi.org/10.1159/000472899 | DOI Listing |
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