The genes selected included epithelial (KRT5, CDH1, EpCAM), mensenchymal (VIM, SNAI1, TWIST), stem (ALDH1A1, PROM1), breast specific (ESR1, PALB2) and other genes related to cell cycle or other cancer pathways (CCND1, CTNNB1, Ki67, etc.). The gene discussed is ESR1; the disease is cancer.