Fig. 3From: SFRP2 enhances the osteogenic differentiation of apical papilla stem cells by antagonizing the canonical WNT pathwaySFRP2 enhanced the phosphorylation of β-catenin in vivo. Immunohistochemical analysis showed that the overexpression of SCAP-SFRP2 increased the phosphorylation of β-catenin (a, c), SCAP-vector was used as the control (b, d). Scale bars = 100 μM (a, b) and 50 μM (c, d)Back to article page