RT info:eu-repo/semantics/article T1 Elastin-plasma hybrid hydrogels for skin tissue engineering A1 Stojic, Marija A1 Ródenas Rochina, Joaquín A1 López Donaire, María Luisa A1 González de Torre, Israel A1 González Pérez, Miguel A1 Rodríguez Cabello, José Carlos A1 Vojtová, Lucy A1 Jorcano Noval, José Luis A1 Velasco Bayón, Diego K1 Elastin K1 Elastin like recombinamers K1 Fibrin hydrogels K1 Elastin-plasma hybrid hydrogels K1 Skin tissue engineering K1 Bioengineered skin K1 22 Física K1 23 Química K1 24 Ciencias de la Vida AB Dermo-epidermal equivalents based on plasma-derived fibrin hydrogels have been ex tensively studied for skin engineering. However, they showed rapid degradation and contractionover time and low mechanical properties which limit their reproducibility and lifespan. In orderto achieve better mechanical properties, elasticity and biological properties, we incorporated aelastin-like recombinamer (ELR) network, based on two types of ELR, one modified with azide(SKS-N3) and other with cyclooctyne (SKS-Cyclo) chemical groups at molar ratio 1:1 at three differentSKS (serine-lysine-serine sequence) concentrations (1, 3, and 5 wt.%), into plasma-derived fibrinhydrogels. Our results showed a decrease in gelation time and contraction, both in the absence andpresence of the encapsulated human primary fibroblasts (hFBs), higher mechanical properties andincrease in elasticity when SKSs content is equal or higher than 3%. However, hFBs proliferationshowed an improvement when the lowest SKS content (1 wt.%) was used but started decreasingwhen increasing SKS concentration at day 14 with respect to the plasma control. Proliferation ofhuman primary keratinocytes (hKCs) seeded on top of the hybrid-plasma hydrogels containing 1and 3% of SKS showed no differences to plasma control and an increase in hKCs proliferation wasobserved for hybrid-plasma hydrogels containing 5 wt.% of SKS. These promising results showedthe need to achieve a balance between the reduced contraction, the better mechanical properties andbiological properties and indicate the potential of using this type of hydrogel as a testing platformfor pharmaceutical products and cosmetics, and future work will elucidate their potential. PB MDPI SN 2073-4360 YR 2021 FD 2021 LK https://uvadoc.uva.es/handle/10324/53937 UL https://uvadoc.uva.es/handle/10324/53937 LA eng NO Polymers, 2021, vol. 13, n. 13, p. 2114 NO Producción Científica DS UVaDOC RD 28-abr-2024