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Wnt3a and Rspo2 produced a synergistic effect on Wnt/β-catenin signaling activation of the hDPSCs. The expression (A,B) and localization (C) of β-catenin in cells treated with or without rhRspo2 (200 ng/mL) or rhWnt3a (100 ng/mL) for 2 h. The experiments were performed for three times. *p < 0.05 and **p < 0.01 compared with the control group.
