LSD1 is a key regulator of the proliferation, apoptosis, differentiation, invasion, metastasis, drug resistance, and cancer stemness and hence is a promising therapeutic target for cancers (Feng Z. et al., 2016; Wang et al., 2016; Alsaqer et al., 2017; Cusan et al., 2018; Verigos et al., 2019; Tayari et al., 2021). This evidence concerns the gene KDM1A and cancer.