RT Journal Article T1 A combined approach for the assessment of cell viability and cell functionality of human fibrochondrocytes for use in tissue engineering. A1 Garzón, Ingrid A1 Carriel, Victor A1 Marín-Fernández, Ana Belén A1 Oliveira, Ana Celeste A1 Garrido-Gómez, Juan A1 Campos, Antonio A1 Sánchez-Quevedo, María Del Carmen A1 Alaminos, Miguel K1 Disco de la Articulación Temporomandibular K1 Condrocitos K1 Trasplante Autólogo K1 Células Cultivadas K1 Ingeniería de Tejidos K1 Expresión Génica K1 Supervivencia Celular K1 Proteínas Reguladoras de la Apoptosis AB Temporo-mandibular joint disc disorders are highly prevalent in adult populations. Autologous chondrocyte implantation is a well-established method for the treatment of several chondral defects. However, very few studies have been carried out using human fibrous chondrocytes from the temporo-mandibular joint (TMJ). One of the main drawbacks associated to chondrocyte cell culture is the possibility that chondrocyte cells kept in culture tend to de-differentiate and to lose cell viability under in in-vitro conditions. In this work, we have isolated human temporo-mandibular joint fibrochondrocytes (TMJF) from human disc and we have used a highly-sensitive technique to determine cell viability, cell proliferation and gene expression of nine consecutive cell passages to determine the most appropriate cell passage for use in tissue engineering and future clinical use. Our results revealed that the most potentially viable and functional cell passages were P5-P6, in which an adequate equilibrium between cell viability and the capability to synthesize all major extracellular matrix components exists. The combined action of pro-apoptotic (TRAF5, PHLDA1) and anti-apoptotic genes (SON, HTT, FAIM2) may explain the differential cell viability levels that we found in this study. These results suggest that TMJF should be used at P5-P6 for cell therapy protocols. PB Public Library of Science PB Nuno M. Neves, University of Minho, Portugal YR 2012 FD 2012-12-18 LK http://hdl.handle.net/10668/780 UL http://hdl.handle.net/10668/780 LA en NO Garzón I, Carriel V, Marín-Fernández AB, Oliveira AC, Garrido-Gómez J, Campos A, et al. A combined approach for the assessment of cell viability and cell functionality of human fibrochondrocytes for use in tissue engineering. PLoS ONE. 2012; 7(12):e51961 NO Journal Article; Research Support, Non-U.S. Gov't; DS RISalud RD Apr 19, 2025