LSD1 was found significantly overexpressed in many solid tumours, including prostate (Etani et al., 2019), breast (Zhou et al., 2021), small cell lung cancer (Jin et al., 2019), bladder cancer (Hayami et al., 2011), medulloblastoma (Lee et al., 2019), neuroblastoma (Ambrosio et al., 2017a), glioma (Bailey et al., 2020b), and sarcomas (Bennani-Baiti et al., 2012), as well as hematological malignancies, such as acute myeloid leukemia (AML) (Zhang et al., 2021). Here, KDM1A is linked to acute myeloid leukemia.