Ex Vivo Generation and Characterization of Human Hyaline and Elastic Cartilaginous Microtissues for Tissue Engineering Applications
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AuthorSánchez Porras, David; Durand-Herrera, Daniel; Chato Astrain, Jesús; Sánchez-López, José Darío; García García, Óscar Darío; Campos Sánchez, Fernando; Carriel Araya, Víctor
MicrotissuesTissue engineeringHuman hyaline chondrocytesHuman elastic chondrocytesExtracellular matrixOrganoids
Sánchez-Porras, D.; Durand-Herrera, D.; Paes, A.B.; Chato-Astrain, J.; Verplancke, R.; Vanfleteren, J.; Sánchez-López, J.D.; García-García, Ó.D.; Campos, F.; Carriel, V. Ex Vivo Generation and Characterization of Human Hyaline and Elastic Cartilaginous Microtissues for Tissue Engineering Applications. Biomedicines 2021, 9, 292. [https://doi.org/10.3390/biomedicines9030292]
SponsorshipInstituto de Salud Carlos III Spanish Government FIS PI17/0393 PI20/0318; Junta de Andalucia PI-0257-2017 PE-03952019; Junta de Andalucia P18-RT-5059; University of Granada A-CTS-498-UGR18; Junta de Andalucia A-CTS-498-UGR18; FEDER-ERDF funds
Considering the high prevalence of cartilage-associated pathologies, low self-repair capacity and limitations of current repair techniques, tissue engineering (TE) strategies have emerged as a promising alternative in this field. Three-dimensional culture techniques have gained attention in recent years, showing their ability to provide the most biomimetic environment for the cells under culture conditions, enabling the cells to fabricate natural, 3D functional microtissues (MTs). In this sense, the aim of this study was to generate, characterize and compare scaffold-free human hyaline and elastic cartilage-derived MTs (HC-MTs and EC-MTs, respectively) under expansion (EM) and chondrogenic media (CM). MTs were generated by using agarose microchips and evaluated ex vivo for 28 days. The MTs generated were subjected to morphometric assessment and cell viability, metabolic activity and histological analyses. Results suggest that the use of CM improves the biomimicry of the MTs obtained in terms of morphology, viability and extracellular matrix (ECM) synthesis with respect to the use of EM. Moreover, the overall results indicate a faster and more sensitive response of the EC-derived cells to the use of CM as compared to HC chondrocytes. Finally, future preclinical in vivo studies are still needed to determine the potential clinical usefulness of these novel advanced therapy products.