The transcription factor Cut‐like homeobox1 (CUX1), also known as CUTL1, CDP or Cut, is involved in the regulation of tumour cell proliferation, cell cycle progression, migration, invasion and apoptosis.12, 13, 14 The function of CUX1 is cell type‐dependent, and it acts as a transcriptional activator or transcriptional repressor in different types of cells. The gene discussed is CUX1; the disease is neoplasm.