Our studies here found that the overexpression of EGFR was attributed to BIR domain of abnormally expressed XIAP in bladder cancers (BCs), which offers an exciting new opportunity for us to explore the potential usage of XIAP BIR domain as a therapeutic target for invasive BCs, which may avoid the issue of XIAP related anti-EGFR therapy resistance, therefore in turn helping to improve the clinical outcome of patients with invasive BCs. Here, XIAP is linked to urinary bladder carcinoma.