Fig. 2From: Stem cell library screen identified ruxolitinib as regulator of osteoblastic differentiation of human skeletal stem cellsThe effect of a selected panel of small molecules targeting multiple signaling pathways on osteoblast differentiation of hBMSCs. a Representative alkaline phosphatase (ALP) staining of hBMSCs on day 10 following treatment with the indicated compounds (concentration 3.0 μM). Images were taken at × 10 magnification using a Zeiss inverted microscope. b Quantification of ALP activity in hBMSCs following treatment with the indicated compounds (concentration 3 μM) versus vehicle-treated control cells at day 10. Data are presented as mean percentage ALP activity ± SEM, n > 16. **P < 0.05; ***P < 0.0005. c Cell viability assay using alamarBlue showing the relative cell viability in hBMSCs following treatment with the indicated compounds (3 μM) versus vehicle-treated control cells on day 10 post-osteoblast differentiation. Abbreviations: ALP alkaline phosphatase, DMSO dimethyl sulfoxideBack to article page