By examination of genes that were found previously to be associated with the epithelial-mesenchymal transition [37] and that were also found to be regulated by ING1 (Yang et al., in preparation), we identified platelet-derived growth factor A (PDGF A) and the platelet-derived growth factor receptor B (PDGFR B) as genes that were regulated by ING1 in a similar manner in the MDA-MB231 human breast adenocarcinoma cell line that is used widely for invasion assays. Here, ING1 is linked to breast adenocarcinoma.