SRC and transitional cell carcinoma: These results are consistent with those that have previously reported a negative correlation of Src expression with bladder aggressiveness (Fanning et al, 1992; Blaveri et al, 2005; Sanchez-Carbayo et al, 2006; Wu et al, 2009; Thomas et al, 2011), and further reiterates that Src inhibitors should be utilised with much caution for cancer prevention in transitional cell carcinoma.