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[The multilayer growth of epithelium-like ESK cells in perfused cultures].

The multilayer growth of an epithelium-like ESK [correction of SPEV] cell culture was achieved under condition of culture medium perfusion. The growth of the ESK [correction of SPEV] cells is described under conditions excluding medium movement above the cells in the chamber with a semipermeable membrane separating the cells from the perfused medium. Under these conditions the multilayer (30-40 layers) growth of culture was observed. The data observed are in favour of our suggestion that it is the diffusional limitations in mass exchange, rather than intracellular interaction contacts, that may be responsible for cell growth in culture. A dependence of culture growth on the initial inoculation density, under condition of medium perfusion immediately above the cells, was determined. The dependence of the multilayer saturation density on the perfusion rate and on the complete replacement of the perfused medium is discussed. The existence of a limiting saturation density of perfused culture was shown.