Figure 4. Purified Wnt7a Induces Reconstituion of split-eGFP and Activates βcatenin/Canonical Wnt Signaling.
(A) Stable xDshN/Fzd5C cells and null cells were seeded on coverslips and treated with purified Wnt7a (300 ng/ml). Cells were fixed 24 hours post-treatment and images were collected via fluorescence microscopy at 400 x magnification. (B) Purified Wnt7a activates TopFlash in xDshN/Fzd5C cells. Luciferase activity was measured 24-h post-transfection. Results are representative of at least three separate experiments performed in duplicate ± S.E. * and **, indicate (p≤0.05) and (p≤0.01) based on ANOVA and Bonferroni post-hoc for multiple comparisons.