Purpose To investigate the roles of cyclin dependent kinase (cdk) 2 and cdk4 in the pathogenesis of benign prostatic hyperplasia (BPH) and prostatic carcinoma (PC) and their relation to PCNA.

• 目的：探讨细胞周期蛋白依赖性激酶cdk2和cdk4在前列腺增生（BPH）和前列腺癌（PC）的发生发展过程中作用及其与PCNA之间关系。