ZEB1 and urinary bladder cancer: It is a fact that ZEB1‐AS1 is closely correlated with tumour occurrence and development, such as bladder cancer,22 glioma,23 melanoma24 and non–small‐cell lung cancer,25 and these data suggest that ZEB1‐AS1 is involved in tumour progression via multiple different molecular mechanisms, suggesting the complexity of ZEB1‐AS1 function in these tumours.