摘要
目的 :探讨子宫内膜癌组织的内分泌分化及其机制。方法 :采用免疫组织化学及双重免疫组织化学技术 ,观察 5 0例子宫内膜样腺癌及 2 0例正常子宫内膜组织的嗜铬素A(CgA)及CgA/细胞角蛋白 (CK)表达。结果 :(1)子宫内膜样腺癌组的癌组织中CgA阳性率为 4 4 0 % ,明显高于正常子宫内膜组 (15 0 % ,P <0 0 5 )。正常子宫内膜组织仅见极少量的内分泌细胞 ,子宫内膜样腺癌组织中内分泌细胞的数量及染色强度均高于正常子宫内膜组。(2 )子宫内膜样腺癌组织中可见同时表达CgA与CK的细胞。结论 :子宫内膜样腺癌的内分泌分化是肿瘤异质性的表现。子宫内膜样腺癌组织中存在可向上皮细胞或内分泌细胞分化的“多向分化细胞” ,提示子宫内膜样腺癌组织的内分泌分化是肿瘤细胞多向分化的结果。
AIM: To investigate endocrine differentiation and its mechanism in endometrial carcinoma. METHODS: Endocrine cells (EC) were identified by immunohistochemical staining of chromogranin A in 50 cases of endometrioid adenocarcinoma and 20 cases of normal endometrium. Double-label techniques were used for simultaneous demonstration of the CgA and cytokeratin. RESULTS: The positive rate of CgA in endometrioid adenocarcinoma was 44.0%, and was significant higher than that in normal endometrium (15.0%, P< 0.05). Scanty EC was present in normal endometrium. The number and staining intensity of EC in endometrioid adenocarcinoma were greater than that in normal. Co-expression of CgA and cytokeratin were detected in endometrioid adenocarcinoma. CONCLUSION: The presence of endocrine cells in endometrioid adenocarcinoma showed heterogeneity of tumors. The occurrence of 'Multidirectional differentiation cells' within the endometrioid adenocarcinoma may indicate that endocrine cells derive from malignant cells of multidirectional differentiation.
出处
《中国病理生理杂志》
CAS
CSCD
北大核心
2003年第6期792-794,T004,共4页
Chinese Journal of Pathophysiology
基金
广东省自然科学基金资助项目 (No .0 10 372 )
