Its expression is increased in breast and bladder cancer metastasis compared to primaries and confers poor prognosis (Athanassiadou et al, 2009; Bircan et al, 2006; Overdevest et al, 2011; Shipitsin et al, 2007) and CD24 knockdown abrogates metastasis in bladder cancer (Overdevest et al, 2011). Here, CD24 is linked to urinary bladder cancer.