Heras, ClaraSánchez Salcedo, SandraLozano Borregón, DanielPeña, JuanEsbrit, PabloVallet Regí, María Dulce NombreSalinas Sánchez, Antonio J.2023-06-172023-06-172019-03-161742-706110.1016/j.actbio.2019.03.033https://hdl.handle.net/20.500.14352/13171RESEARCHER ID N-4501-2014 (Sandra Sánchez Salcedo) ORCID 0000-0002-1889-2057 (Sandra Sánchez Salcedo) RESEARCHER ID B-5081-2017 (Daniel Lozano Borregón) ORCID 0000-0001-5902-9201 (Daniel Lozano Borregón) RESEARCHER ID M-3378-2014 (María Vallet Regí) ORCID 0000-0002-6104-4889 (María Vallet Regí) RESEARCHER ID M-3316-2014 (Antonio Salinas Sánchez) ORCID 0000-0002-8408-3389 (Antonio Salinas Sánchez)There is an urgent need of biosynthetic bone grafts with enhanced osteogenic capacity. In this study, we describe the design of hierarchical meso-macroporous 3D-scaffolds based on mesoporous bioactive glasses (MBGs), enriched with the peptide osteostatin and Zn2+ ions, and their osteogenic effect on human mesenchymal stem cells (hMSCs) as a preclinical strategy in bone regeneration. The MBG compositions investigated were 80%SiO2– 15%CaO–5%P2O5 (in mol-%) Blank (BL), and two analogous glasses containing 4% ZnO (4ZN) and 5% ZnO (5ZN). By using additive fabrication techniques, scaffolds exhibiting hierarchical porosity: mesopores (around 4 nm), macropores (1-600 m) and big channels ( 1000 m), were prepared. These MBG scaffolds with or without osteostatin were evaluated in cell cultures of hMSCs. Zinc promoted hMSCs colonization (both the surface and inside) of MBG scaffolds. Moreover, Zn2+ ions and osteostatin together, but not independently, in the scaffolds were found to induce the osteoblast differentiation genes runt related transcription factor-2 (RUNX2) and alkaline phosphatase (ALP) in hMSCs after 7 d of culture in the absence of an osteogenic differentiation-promoting medium. These results add credence to the combined use of zinc and osteostatin as an effective strategy for bone regeneration applications.engjournal articlehttps://www.journals.elsevier.com/acta-biomaterialiahttp://www.ucm.es/valletregigroupopen access546615.46Mesoporous bioactive glassesZnOOsteostatinHuman mesenchymal cellsMaterialesQuímica inorgánica (Farmacia)3312 Tecnología de Materiales