Fig. (1) a) Quantification of osteogenic differentiation via alizarin red staining and b) adipogenic differentiation via oil red staining of nontransduced control MSCs, GFP transduced MSCs and luciferase transduced MSCs. c) Representative pictures of osteogenic and adipogenic differentiation after respective staining. d) Expression of GFP and luciferase in MSCs during differenatiation assay (day 14), upper row: BLI of luciferase expressing MSCs.