Our previous studies showed that glycopeptide‐preferring polypeptide GalNAc transferase 1 (ppGalNAc T1) mRNA was highly expressed in bladder tumor tissues and bladder cancer stem cells, and GALNT1‐positive staining in bladder cancer tissues was related to CD44 staining 49. This evidence concerns the gene GALNT1 and urinary bladder carcinoma.