The positive expression rate of nm23 H 1 was 21.7% (13/60) in 60 PBC. nm23 H 1 expression in PBC was negatively correlated with tumor size,clinical stage and axillary lymph node me tastasis.

• nm2 3 H1基因蛋白在乳腺癌组织中表达阳性率为 2 1.；7%25 (13/ 6 0 )；nm2 3 H1蛋白表达与肿瘤大小、临床分期和腋淋巴结转移呈负相关。