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β-catenin nuclear translocation (left) and p-GSK3 cellular localization (right) in rMAPC aggregate cultures in the presence and absence of dexamethasone in OM media after 38 days of osteogenic differentiation. Immunostained matrices from cultures with dexamethasone (a,c), and without dexamethasone (b,d). β-catenin immunoreactivity in red (a,b) and p-GSK3 immunoreactivity in red (c,d). Blue: nuclear DAPI, Magnification: 400x.
