Indeed, although high ID1 expression has been correlated with enhanced EMT in advanced bladder tumor stages (Hu et al., 2013), and promotion of carcinogenesis and metastasis in lung cancer (Castañón et al., 2017), ID1 has also been described to antagonize EMT in mouse NMuMG mammary epithelial cells (Kondo et al., 2004). The gene discussed is ID1; the disease is lung cancer.