The novel flavonoid isoangustone A has been shown to inhibit the proliferation of human melanoma cells through blockade of cell-cycle progression and downregulation of the PI3K/Akt pathway (176); glycyrrhizin seems to protect human melanoma cells from UVB irradiations (177); more recently, the licorice component licochalcone A has been reported to reduce the growth of different cancer cell lines, including melanoma cells (178). This evidence concerns the gene AKT1 and cancer.