To evaluate the relationship between the expression of cathepsin D(CD)and biological be haviour of bladder transitional cell carcinoma (BTCC)and the mechanisms of invasiveness.

• 研究组织蛋白酶D(CD)的表达与膀胱移行细胞癌(BTCC)生物学行为间的关系，并探讨BTCC发生浸润转移的机制。