YAP1 and urinary bladder carcinoma: Using a specific primer pairs (Primer 3′UTR -F and Primer 3′UTR -R) that spans either side of the 3′UTR of the YAP gene (Figure 1A), we found that the alternatively spliced form of YAP mRNA was expressed in PC-3 (human prostate adenocarcinoma cancer cells) and T24 cells (human bladder carcinoma cells) (Figure 1B).