To confirm the effect of Cdr1as on the chemosensitivity of bladder cancer cells to cisplatin, we also constructed three kinds of Cdr1as knockdown lentivirus (sh‐Cdr1as1, 2, and 3, Fig. 1D) and GFP lentivirus (sh‐CTL). This evidence concerns the gene LINC00632 and urinary bladder cancer.