MITF and melanoma: Bellei et al. [2012] noted that β‐catenin has a critical role in prenatal melanocyte biology; they recently demonstrated a physical interaction between CREB and β‐catenin following PKA/cAMP pathway activation in normal human melanocytes and B16‐F0 mouse melanoma cells, which led to the functional cooperation of β‐catenin and CREB on the MITF promoter.