Journal: Frontiers in Cell and Developmental Biology
Article Title: Enhanced Osteogenic Differentiation of Human Bone Marrow-Derived Mesenchymal Stem Cells by a Hybrid Hydroxylapatite/Collagen Scaffold
doi: 10.3389/fcell.2020.610570
Figure Lengend Snippet: Osteogenic markers in human bone marrow-derived mesenchymal stem cells (hBMSCs) cultured on the biomaterial. (A) Alizarin red staining at day 21 is shown in the panel, in experimental conditions tested. Magnification 4×. (B) To quantify the amount of alizarin red staining in hBMSCs grown on the biomaterial, cells were eluted with 20% methanol and 10% acetic acid in a water solution and measured spectrophotometrically at 450 nm. Matrix mineralization data are reported as optical density and shown in the graph. (C) Detection of osteopontin and osteocalcin proteins by immunofluorescence staining in hBMSCs, at day 21. Symbols indicate statistical significance (* p < 0.001). Magnification 20×. (D) The temporal pattern of osteocalcin protein levels detected at different time points, i.e., at days 14 and 21, was quantified by ELISA. Osteocalcin protein was reported as ng of osteocalcin/1 μg of total protein.
Article Snippet: In the OC group, hBMSCs were cultured in hBMSCs differentiation Bullekit TM osteogenic medium (Lonza, Milan, Italy), which contains osteogenic basal medium (Lonza, Milan, Italy) and osteogenic SigleQuotes TM (dexamethasone, ascorbate, mesenchymal cell growth supplement, L -glutamine, and β-glycerophosphate) (Lonza, Milan, Italy) ( ).
Techniques: Derivative Assay, Cell Culture, Staining, Immunofluorescence, Enzyme-linked Immunosorbent Assay