Transactivation of NF‐κB can be initiated by a vast array of stimuli that have different biological activities, such as inflammation, immunity, differentiation, cell growth, tumorigenesis and apoptosis.28, 29, 30 A previous study reported that NF‐κB was frequently activated in bladder cancer.31, 32 We also have preliminary evidence demonstrating that QKI‐6 inhibits bladder tumorigenesis (data not shown). Here, NFKB1 is linked to urinary bladder cancer.