Results Cytokeratin which acts as an epithelial marker became negative while staining of Cathepsin D was intensified in parotid duct epithelial cells after infected by HCMV.

• 结果腮腺导管上皮细胞感染HCMV后,作为上皮性标志物的角蛋白表达转为阴性,而组织蛋白酶D的表达转为强阳性。