In the FGFR3-mutant MGHU3 and UMUC14 lines, which are derived from less invasive bladder tumours, ETV5 knockdown had a similar effect on reducing cell numbers at confluence (Fig. 4c,e), but a less striking effect on colony formation (Fig. 4d,f). This evidence concerns the gene FGFR3 and urinary bladder neoplasm.