LSD1 expression was detected in three glioma stem cell (GSC) lines (GSC1228, GSC222, and GSC316), as well as in differentiated glioma cell lines (LN229), and a normal neural stem cell line (F3), showing substantial but variable levels of both mRNA and protein expression (Supplementary Fig. S1C, D). The gene discussed is KDM1A; the disease is glioma.