Journal: bioRxiv
Article Title: Matrix stiffness and stress relaxation regulate osteogenesis through histone demethylases KDM4B and KDM6B
doi: 10.1101/2025.07.16.665229
Figure Lengend Snippet: A , Schematic illustrating the approach to tuning alginate hydrogel mechanical properties. B , Measurements of hydrogel elastic modulus one day after crosslinking. C , D , Quantifications of stress relaxation half-times across hydrogel matrices. E , Representative images of alkaline phosphatase staining (left) indicating osteogenic differentiation of hBMSCs. Quantification of ALP-positive cells across hydrogel conditions (right). F , Gene expression data for early osteogenic markers from cells cultured across hydrogel conditions. G , Representative micrographs of cells cultured across hydrogel conditions stained for paxillin, β1 integrin, and nuclei (left) with quantifications of both paxillin intensity and colocalization of paxillin with β1 integrin (right). Statistical significance was determined by one-way analysis of variance (ANOVA) followed by Dunnett’s multiple testing correction. n = 3 replicates per condition. * indicates p < 0.05, ** p < 0.01, *** p < 0.001, **** p < 0.0001.
Article Snippet: Primary human BMSCs (hBMSCs) were obtained from Millipore Sigma (SCC034) and cultured according to established protocols ( Huebsch et al ., 2010 ; Darnell et al ., 2017 ).
Techniques: Staining, Gene Expression, Cell Culture