Bio-inspired hydrogel composed of hyaluronic acid and alginate as a potential bioink for 3D bioprinting of articular cartilage engineering constructs Antich Acedo, Cristina Vicente Álvarez-Manzaneda, Juan De Jiménez, Gema Chocarro Wrona, Carlos Carrillo Delgado, Esmeralda Esperanza Montañez, Elvira Gálvez Martín, P. Marchal Corrales, Juan Antonio Hyaluronic acid Bioink Bioprinting Cartilage tissue engineering Bioprinting is a promising tool to fabricate well-organized cell-laden constructs for repair and regener- ation of articular cartilage. The selection of a suitable bioink, in terms of composition and mechanical properties, is crucial for the development of viable cartilage substitutes. In this study, we focused on the use of one of the main cartilage components, hyaluronic acid (HA), to design and formulate a new bioink for cartilage tissue 3D bioprinting. Major characteristics required for this application such as printabil- ity, biocompatibility, and biodegradability were analyzed. To produce cartilage constructs with optimal mechanical properties, HA-based bioink was co-printed with polylactic acid (PLA). HA-based bioink was found to improve cell functionality by an increase in the expression of chondrogenic gene markers and specific matrix deposition and, therefore, tissue formation. These results indicate that it is a promising bioink candidate for cartilage tissue engineering based in 3D bioprinting. 2020-05-12T11:50:11Z 2020-05-12T11:50:11Z 2020-02-03 info:eu-repo/semantics/article Antich, C., de Vicente, J., Jiménez, G., Chocarro, C., Carrillo, E., Montañez, E., ... & Marchal, J. A. (2020). Bio-inspired hydrogel composed of hyaluronic acid and alginate as a potential bioink for 3D bioprinting of articular cartilage engineering constructs. Acta Biomaterialia. http://hdl.handle.net/10481/61979 10.1016/j.actbio.2020.01.046 eng http://creativecommons.org/licenses/by-nc-nd/3.0/es/ info:eu-repo/semantics/openAccess Atribución-NoComercial-SinDerivadas 3.0 España Elsevier Inc.