In bladder cancer, we additionally found fibroblast growth factor receptor 1 (FGFR1) and its downstream regulatory subunits of the protein phosphatase 2 (PP2; inhibitor of cell growth and division), and the pro-proliferative inhibitor of PP2, KIAA1524 (CIP2A). Here, FGFR1 is linked to urinary bladder carcinoma.