alexa Oral mucosa model based on a collagen-elastin matrix.
Dentistry

Dentistry

Dentistry

Author(s): Golinski PA, Grger S, Herrmann JM, Bernd A, Meyle J

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Abstract BACKGROUND AND OBJECTIVE: The collagen-elastin matrix (Matriderm(®)) is used to treat deep and full-thickness burns and was recently described as a suitable scaffold for tissue engineering. The aim of the present study was to investigate the biocompatibility of Matriderm(®) for gingival use through creation of an oral mucosa model ex vivo. MATERIAL AND METHODS: Gingival fibroblasts and keratinocytes were cultured. A dermal area on the base of the collagen-elastin matrix was repopulated with fibroblasts. After 14 days, keratinocytes were seeded on this dermal area to engineer a multilayered mucosa. Analysis of the architecture was performed using light and electron microscopy. Immunohistochemical detection of collagen IV and cytokeratin was carried out. RESULTS: Based on this scaffold we generated a multilayered oral mucosa-like structure. Histological, immunohistochemical and electron microscopic analysis of the dermal/epidermal junction showed a typical basement membrane and hemidesmosomal structures. Neighboring keratinocytes formed desmosomes in the epidermal sections. Cytokeratin was detectable in all epidermal layers. These experiments revealed that the collagen-elastin matrix was highly biocompatible with gingival cells under ex vivo conditions. CONCLUSION: Employing tissue-engineering techniques with dermal and epidermal cells from the gingiva, a multilayered oral mucosa was generated and characterized with respect to biocompatibility for Matriderm(®). The results indicate that Matriderm(®) is suitable for the ex vivo growth of gingival tissue cells and is a useful scaffold with possible applications in periodontal therapy. © 2011 John Wiley & Sons A/S. This article was published in J Periodontal Res and referenced in Dentistry

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