Adhesion, growth, and proliferation of endothelial cells on biopolymer extracellular film matrices.

We analyzed the influence of initial properties of biopolymer fi lm extracellular matrices made of chitosan on adhesion of swine embryonic kidney epithelium-like cells, their morphology, growth, and proliferation. It was found that adhesion index of cells on the studied matrices was similar, but cell morphology had significant qualitative differences. Round non-flattened cells were described in endothelial cell cultures on chitosan-based matrices. Local variations in charge density on matrices induced by the presence of chitin nanofibers led to the appearance of flattened spindle-shaped and non-flattened sphericalal cells. Long-term culturing on biopolymer extracellular fi lm matrices was associated by the formation of spatial conglomerates of sphericalal cells.