Overexpression of LSD1 has been observed in various solid tumors, including non-small cell lung cancer (NSCLC) [2, 3], prostate cancer [4, 5], gastric cancer [6, 7], colorectal cancer [8], bladder cancer [9], esophageal cancer [10], medulloblastoma [11, 12], glioblastoma [13, 14], and breast tumors [15, 16]. The gene discussed is KDM1A; the disease is non-small cell lung carcinoma.