癌变·畸变·突变 ›› 2008, Vol. 20 ›› Issue (3): 182-184.doi: 10.3969/j.issn.1004-616x.2008.03.004

• 论著 • 上一篇    下一篇

多聚免疫球蛋白受体(pIgR/SC)在肺癌组织的表达及其临床意义

肖 汀1 林冬梅2 李 敏1 张 莹1 易胜中1 程书钧1 高燕宁1   

  1. 1.中国医学科学院北京协和医学院肿瘤医院肿瘤研究所病因及癌变研究室,北京 100021;2. 中国医学科学院北京协和医学院肿瘤医院肿瘤研究所病理科,北京 100021
  • 收稿日期:2007-12-27 修回日期:2008-03-05 出版日期:2008-05-30 发布日期:2008-05-30
  • 通讯作者: 高燕宁

Expression of Polymeric Immunoglobulin Receptor (pIgR/SC) in Lung Cancer Tissues

XIAO Ting1, LIN Dong-mei2, LI Min1, ZHANG Ying1, YI Sheng-zhong1, CHENG Shu-jun1, GAO Yan-ning1,   

  1. 1. Department of Etiology and Carcinogenesis, Cancer Institute (Hospital), Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100021; 2. Department of Pathology, Cancer Institute (Hospital), Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100021,China
  • Received:2007-12-27 Revised:2008-03-05 Online:2008-05-30 Published:2008-05-30
  • Contact: GAO Yan-ning

摘要: 背景与目的: 探讨多聚免疫球蛋白受体(polymeric immunoglobulin receptor/secretory component,pIgR/SC)在肺癌组织中的表达情况及其临床意义。 材料与方法: 采用大样本石蜡包埋组织(包含344例肺鳞癌、93例肺腺癌、47例小细胞肺癌以及30例同组患者的正常肺组织)构建的组织微阵列,进行免疫组织化学(SP法)染色,分析pIgR/SC蛋白表达情况及其与肺癌临床分期和病理分级间的关系。 结果: pIgR/SC蛋白在肿瘤组织(尤其是非小细胞肺癌)中的表达水平(54.1%)显著高于正常对照组织(6.7%),其差异具有统计学意义(P<0.001);在肺癌组织不同病理类型之间的差异具有统计学意义(P<0.001),其表达的阳性率从高到低依次为:鳞癌66.3%>腺癌34.4%>小细胞肺癌4.3%。而pIgR/SC蛋白表达水平在肺癌的临床分期和组织分级间的差异均无统计学意义 (P>0.05)。 结论: pIgR/SC蛋白的异常表达反应了肺癌细胞组织学来源的差异,其过表达可能出现在肺癌(尤其是鳞癌)发生发展的早期阶段。

关键词: 多聚免疫球蛋白受体, 肺癌, 组织芯片, 免疫组化

Abstract: BACKGROUND AND AIM: To explore the expression levels of pIgR/SC in lung cancer tissues and its clinical significance. MATERIALS AND METHODS: Tissue microarray (TMA) containing 484 sample of lung cancer, including 344 with squamous cell carcinoma (SCC), 93 with adenocarcinoma (ADC), 47 with small cell lung cancer (SCLC), and 30 normal controls from the same patients, were evaluated by immunohistochemistry (IHC). RESULTS: Immunohistochemical study showed that pIgR positive staining was found in 54.1% lung cancers (especially in non-small cell lung cancer), significantly higher than in normal lung tissues(6.7%). The pIgR/SC expression was found in 66.3% of SCC, 34.4% and 4.3% of ADC and SCLC specimens respectively (P<0.001). But pIgR/SC protein levels were not related to tumor differentiation and stage. CONCLUSION: Expression of pIgR/SC may reflect the histological difference of lung cancer, and over expression of pIgR/SC may happen at the early stage of non-small cell lung cancer.

Key words: pIgR/SC, lung cancer, tissue microarray, immunohistochemistry