In vivo and in vitro experiments on the application of cell technologies to tissue defect closure were conducted; autologic mesenchymal stem cells on 3-demensional matrices were used. The authors analyze the results of the application of bioengineering tissue equivalents for the closure of soft tissue and upper airway defects after extensive resections performed in 52 oncological patients. Tissue equivalents with stem cells provide engraftment and long-term graft functioning; they also modify wound surface, thus stimulating wound epithelization. In this study the application of tissue equivalents led to wound healing and functional recovery in 87% of patients.
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