KIF20A and urinary bladder cancer: In addition, overexpression of the KIF20A gene was also observed in other malignancies, such as lung and bladder cancers (Table 2) (Kitahara et al, 2001; Hasegawa et al, 2002; Kikuchi et al, 2003; Nakamura et al, 2004; Obama et al, 2005) .