As already reported, the switch in EMT process is controlled by transcription factors such as Slug, Snail, ZEB1, ZEB2 and Twist, as well as certain signalling pathways, including Notch, Wnt, TGF‐β and NF‐κB.4, 6 Therefore, a further exploration of gene regulation mechanism of EMT in cancer metastasis has great significance. The gene discussed is NFKB1; the disease is cancer.