In addition, several bladder cancer cells (T24, UMUC‐3, 5637, SW780 and RT4) available in the laboratory were selected to detect the expression level of the Survivin protein, and the western blot result demonstrated that higher levels of Survivin protein expression in UMUC‐3 and 5637 cells (Figure 2D). Here, BIRC5 is linked to urinary bladder cancer.