RT Journal Article T1 Doxycycline-Doped Polymeric Membranes Induced Growth, Differentiation and Expression of Antigenic Phenotype Markers of Osteoblasts A1 Toledano-Osorio, Manuel A1 Manzano-Moreno, Francisco J. A1 Toledano, Manuel A1 Medina-Castillo, Antonio L. A1 Costela-Ruiz, Victor J. A1 Ruiz, Concepción A1 Osorio, Raquel K1 CD markers K1 Doxycycline K1 Antigenic phenotype K1 Osteoblasts K1 Membrane K1 Alkaline phosphatase K1 Flow cytometry K1 Bone regeneration K1 Cell proliferation K1 Periodontal disease K1 Immunomodulation K1 Antígenos CD K1 Doxiciclina K1 Osteoblastos K1 Fosfatasa alcalina K1 Citometría de flujo K1 Regeneración ósea K1 Proliferación celular K1 Enfermedades periodontales K1 Inmunomodulación K1 Membranas AB Polymeric membranes are employed in guided bone regeneration (GBR) as physical barriers to facilitate bone in-growth. A bioactive and biomimetic membrane with the ability to participate in the healing and regeneration of the bone is necessary. The aim of the present study was to analyze how novel silicon dioxide composite membranes functionalized with zinc or doxycycline can modulate the osteoblasts' proliferation, differentiation, and expression of selected antigenic markers related to immunomodulation. Nanostructured acrylate-based membranes were developed, blended with silica, and functionalized with zinc or doxycycline. They were subjected to MG63 osteoblast-like cells culturing. Proliferation was assessed by MTT-assay, differentiation by evaluating the alkaline phosphatase activity by a spectrophotometric method and antigenic phenotype was assessed by flow cytometry for selected markers. Mean comparisons were conducted by one-way ANOVA and Tukey tests (p < 0.05). The blending of silica nanoparticles in the tested non-resorbable polymeric scaffold improved the proliferation and differentiation of osteoblasts, but doxycycline doped scaffolds attained the best results. Osteoblasts cultured on doxycycline functionalized membranes presented higher expression of CD54, CD80, CD86, and HLA-DR, indicating a beneficial immunomodulation activity. Doxycycline doped membranes may be a potential candidate for use in GBR procedures in several challenging pathologies, including periodontal disease. PB MDPI YR 2021 FD 2021-03-28 LK http://hdl.handle.net/10668/4443 UL http://hdl.handle.net/10668/4443 LA en NO Toledano-Osorio M, Manzano-Moreno FJ, Toledano M, Medina-Castillo AL, Costela-Ruiz VJ, Ruiz C, et al. Doxycycline-Doped Polymeric Membranes Induced Growth, Differentiation and Expression of Antigenic Phenotype Markers of Osteoblasts. Polymers. 2021 Mar 28;13(7):1063 DS RISalud RD Apr 19, 2025