Fig. 1From: Amphiregulin regulates odontogenic differentiation of dental pulp stem cells by activation of mitogen-activated protein kinase and the phosphatidylinositol 3-kinase signaling pathwaysCulture and characterization of DPSCs. A (a) DPSCs isolated and cultured from pulp tissue samples, (b) clonal DPSCs, (c) were cultured for 2 weeks. B (a) Mineralized nodule formation in osteo/odontogenic induction medium demonstrated by Alizarin Red S staining, (b) lipid droplet formation in adipogenic induction medium using Oil Red O staining. C Flow cytometry of molecular surface antigen markers in DPSCs. (a) Negative control for DPSCs. Representative profiles are shown for the expression of the immunophenotypic markers CD34 (b), CD45 (c), CD90 (d), CD105 (e), CD29 (f), CD146 (g) and STRO-1 (h) in DPSCsBack to article page