WNT3A and colorectal carcinoma: Experiments performed in patient-derived stage III CRC-SC tumorspheres cultured with or without a Wnt/β-catenin pathway inhibitor (PRI-724) or activator (Wnt3a alone or in combination with LiCl) confirmed p38α–β-catenin nuclear/cytoplasmic co-localization under all treatment conditions also in these cells (Fig. S2C).