Tissue-engineered biological dressing accelerates skin wound healing in mice via formation of provisional connective tissue
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Elina S. Chermnykh [1] ; Ekaterina V. Kiseleva [1] ; Olga S. Rogovaya [1] ; Aleksandra L. Rippa [1] ; Andrey V. Vasiliev [1] ; Ekaterina A. Vorotelyak [1]
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[1] Koltzov Institute of Developmental Biology
Koltzov Institute of Developmental Biology
Rusia
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- Localización: Histology and histopathology: cellular and molecular biology, ISSN-e 1699-5848, ISSN 0213-3911, Vol. 33, Nº. 11, 2018, págs. 1189-1199
- Idioma: inglés
- Enlaces
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Resumen
Despite recent advances in bioengineered therapies, wound healing remains a serious clinical problem. In acute full-thickness wounds, it is desirable to replace both the damaged dermis and epidermis in a single procedure. This approach requires appropriate properties of tissue-engineered dressings to support simultaneous regenerative processes in the dermis and epidermis while they are temporally separated in the natural wound healing process.
In this study, a collagen-based scaffold inhabited by skin cells was employed. Its ability to stimulate the skin repair of full-thickness excisional splinting wounds in a murine model was evaluated in comparison with that of acellular collagen and commercially available gelatin porous sponge Spongostan®.
The study showed that cell-based skin equivalent promoted the immediate filling of the wound bed and provided simultaneous reorganization of the dermal component into highly vascularized granulation-like tissue and rapid epithelialization, thus improving the quality of healing. Inflammation was delayed and less pronounced. In contrast, acellular collagen and especially Spongostan® failed to demonstrate similar results. The porous structure of Spongostan® prevented effective long-term epithelialization and impeded the formation of an adequate connective tissue at the wound bed.
