细胞角蛋白在鼻息肉上皮细胞中的表达

目的 :探讨细胞角蛋白抗体在鼻息肉上皮细胞中的表达及意义。方法 :应用AE1 、AE3、CK7、CK1 4、CK1 9、CK2 0 单克隆抗体 ,采用链霉素蛋白 过氧化酶染色 ,观察其在鼻息肉上皮细胞的表达。结果 :①AE1 、CK7、CK1 9在鼻息肉的各种病理上皮如鳞状上皮、柱状上皮及立方上皮染色均为阳性 ;AE1 、CK1 9在全层上皮细胞染色阳性 ;CK7在假复层上皮细胞中的杯状细胞及基底细胞染色阳性 ;②AE3、CK2 0 在部分单层及复层上皮染色阳性 ;③AE1 、AE3、CK7、CK1 9在过渡性上皮细胞呈现局灶状阳性。结论 :CK7、CK1 9是鼻息肉上皮细胞最基本的角蛋白组合之一 ;在炎症反应过程中 ,鼻息肉粘膜上皮细胞的部分角蛋白亚型表达可出现丢失 ,而出现新的上皮细胞角蛋白构型

Cytokeratin expression in the epithelial cells of nasal polyp

OBJECTIVE: To study the expression of cytokeratin in epithelial cells of nasal polyp and its significance. METHOD: The monoclonal antibody of AE1, AE3, CK7, CK14, CK19, CK20 were used to determined the corresponding cytokeratin expression in epithelial cells of nasal polyp with immunohistochemical staining. RESULT: 1. AE1, CK7, CK19 staining were positive in various pathological epithelium of nasal polyp. AE1, CK19 showed positive in total layer of epithelium. CK7 was positive in goblet cells and basal cells of the pseudostratified epithelium. 2. AE3, CK20 staining were positive in part of simple epithelium and stratified epithelium. 3. AE1, AE3, CK7, CK19 staining showed focal positive in transitional epithelium. CONCLUSION: CK7, CK19 are the one of the essential assembly type of cytokeratin in epithelium of nasal polyp. During the process of inflammatory reaction, the expression of partial cytokeratin subtype would lose while a new cytokeratin pattern would appear.