When the mice were fed with water containing doxycycline, GFP positive brain tumour could be detected by Xenogen IVIS in mice transplanted with GFP transduced hBTICs 5 weeks later, while little or no GFP positive signals could be detected in mice transplanted with LSD1‐197‐211‐GFP transduced hBTICs (Figure 6C, Figure S7F). Here, KDM1A is linked to brain neoplasm.