WNT3A and melanoma: To further elucidate whether a common set of genes was expressed during neural crest induction in the zebrafish embryo and in human melanoma cells upon Wnt3a stimulation, we conducted mRNA expression analyses of human SKMEL28 melanoma cells (untreated, Wnt3a, or PKF115–584 pre-conditioned) and of isolated zebrafish embryo neural crest.