The effect of Dact3 transfection on the canonical Wnt signaling activity (B, C), cell proliferation (D) and cell invasion (E, F) in H157 and A549. (A) Dact3 protein level in H157 and A549 with Dact3 transfection; β-actin: reference control. The graph in (E, F) shows the number of invading cells. *, P<0.05 compared with negative control (NC). Error bars, S.D.