Expression and localization of thrombomodulin in preneoplastic bronchial lesions and in lung cancer

被引:15
|
作者
Tolnay, E
Wiethege, T
Muller, KM
机构
[1] UNIV CLIN BERGMANNSHEIL,INST PATHOL,D-44789 BOCHUM,GERMANY
[2] SEMMELWEIS UNIV MED,SCH MED,DEPT PULM,BUDAPEST,HUNGARY
来源
VIRCHOWS ARCHIV-AN INTERNATIONAL JOURNAL OF PATHOLOGY | 1997年 / 430卷 / 03期
关键词
thrombomodulin; lung cancer; preneoplasia; squamous cell carcinoma; epithelial differentiation; keratinisation;
D O I
10.1007/BF01324803
中图分类号
R36 [病理学];
学科分类号
100104 ;
摘要
Thrombomodulin (TM) is an endothelial surface glycoprotein that acts as a natural anticoagulant. It inhibits thrombin and accelerates the activation of the anticoagulant protein C. TM has been detected in dermal keratinocytes, where it is associated with terminal differentiation. It can also be detected in various types of squamous malignant neoplasms and in malignancies of endothelial and mesothelial origin, such as Kaposi's sarcoma or malignant mesothelioma, but is absent in pulmonary adenocarcinomas (AC). Seventy-two lung tumour specimens [33 squamous cell carcinomas (SQCC), 23 AC, 1 large cell carcinoma, 8 small cell lung cancers (SCLC) and 7 multidifferentiated tumours (MT)] were analysed immunohistochemically by staining with an anti-TM antibody in order to assess TM expression. All of the SQCC stained positively for TM. III contrast, only 9 AC and 4 MT and none of the SCLC showed positive anti-TM staining. Seven hyperplastic bronchial epithelial specimens and eight preneoplastic bronchial lesions (five cases of moderate dysplasia, two cases of severe dysplasia and one case of carcinoma in situ) were used as controls. Normal or hyperplastic areas of bronchial epithelium revealed no positive reaction. However, a distinct positive anti-TM staining pattern related to the degree of keratiniziation of dysplastic lesions was seen. The present results suggest that anti-TM immunostaining is a useful marker for squamous cell carcinoma in the differential diagnosis of pulmonary carcinoma, also indicating keratinocyte differentiation in dysplastic bronchial epithelium.
引用
收藏
页码:209 / 212
页数:4
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