J M Viñuela-Prieto1,2,3, M C Sánchez-Quevedo1,2, C A Alfonso-Rodríguez1,2, A C Oliveira1,2, G Scionti1,2, M A Martín-Piedra1,2, G Moreu4, A Campos1,2, M Alaminos1,2, I Garzón1,2. 1. Department of Histology (Tissue Engineering Group), Faculty of Medicine, University of Granada, Granada, Spain. 2. Instituto de Investigación Biosanitaria ibs, Granada, Spain. 3. PhD Programme in Biomedicine, University of Granada, Granada, Spain. 4. Department of Stomatology, Faculty of Dentistry, University of Granada, Granada, Spain.
Abstract
BACKGROUND AND OBJECTIVE: Oral mucosa shortage may limit or condition some clinical approaches in maxillofacial, periodontal and implant treatment. The availability of a human oral mucosa model generated by tissue engineering could help clinicians to address the lack of oral mucosa. In this work, we carried out a sequential maturation and differentiation study of the epithelial cell layer of an artificial human oral mucosa substitute based on fibrin-agarose biomaterials with fibroblasts and keratinocytes. MATERIAL AND METHODS: Histological, immunohistochemical and gene expression analyses were carried out in artificial human oral mucosa models developed and cultured for 1, 2 and 3 wk. RESULTS: Artificial oral mucosa models showed expression of tight junction proteins and cytokeratins from the first week of in vitro development. Mature samples of 3 wk of development subjected to air-liquid conditions showed signs of epithelial differentiation and expressed specific RNAs and proteins corresponding to adherent and gap junctions and basement lamina. Moreover, these mature samples overexpressed some desmosomal and tight junction transcripts, with gap junction components being downregulated. CONCLUSION: These results suggest that bioengineered human oral mucosa substitutes form a well-developed epithelial layer that was very similar to human native tissues. In consequence, the epithelial layer could be fully functional in these oral mucosa substitutes, thus implying that these tissues may have clinical usefulness.
BACKGROUND AND OBJECTIVE: Oral mucosa shortage may limit or condition some clinical approaches in maxillofacial, periodontal and implant treatment. The availability of a human oral mucosa model generated by tissue engineering could help clinicians to address the lack of oral mucosa. In this work, we carried out a sequential maturation and differentiation study of the epithelial cell layer of an artificial human oral mucosa substitute based on fibrin-agarose biomaterials with fibroblasts and keratinocytes. MATERIAL AND METHODS: Histological, immunohistochemical and gene expression analyses were carried out in artificial human oral mucosa models developed and cultured for 1, 2 and 3 wk. RESULTS: Artificial oral mucosa models showed expression of tight junction proteins and cytokeratins from the first week of in vitro development. Mature samples of 3 wk of development subjected to air-liquid conditions showed signs of epithelial differentiation and expressed specific RNAs and proteins corresponding to adherent and gap junctions and basement lamina. Moreover, these mature samples overexpressed some desmosomal and tight junction transcripts, with gap junction components being downregulated. CONCLUSION: These results suggest that bioengineered human oral mucosa substitutes form a well-developed epithelial layer that was very similar to human native tissues. In consequence, the epithelial layer could be fully functional in these oral mucosa substitutes, thus implying that these tissues may have clinical usefulness.
Authors: M A Martín-Piedra; M Alaminos; R Fernández-Valadés-Gámez; A España-López; E Liceras-Liceras; I Sánchez-Montesinos; A Martínez-Plaza; M C Sánchez-Quevedo; R Fernández-Valadés; I Garzón Journal: Histochem Cell Biol Date: 2016-09-06 Impact factor: 4.304
Authors: Modesto T Lopez-Lopez; Giuseppe Scionti; Ana C Oliveira; Juan D G Duran; Antonio Campos; Miguel Alaminos; Ismael A Rodriguez Journal: PLoS One Date: 2015-07-24 Impact factor: 3.240
Authors: Cristina Blanco-Elices; Enrique España-Guerrero; Miguel Mateu-Sanz; David Sánchez-Porras; Óscar Darío García-García; María Del Carmen Sánchez-Quevedo; Ricardo Fernández-Valadés; Miguel Alaminos; Miguel Ángel Martín-Piedra; Ingrid Garzón Journal: Materials (Basel) Date: 2020-04-04 Impact factor: 3.623