Röcken C, Licht J, Roessner A, Carl-McGrath S
Department of Pathology, Otto-von-Guericke-University, Leipziger Str. 44, D-39120 Magdeburg, Germany.
J Clin Pathol. 2005 Oct;58(10):1069-75. doi: 10.1136/jcp.2005.026328.
Aminopeptidase N (CD13) is expressed in normal and neoplastic liver tissue, where it exhibits a characteristic canalicular pattern (CD13(can)), similar to that seen for CD10 and when antibodies crossreact with biliary glycoprotein I (p-CEA).
To compare the putative diagnostic use of CD13(can) in differentiating between hepatocellular (HCC) and non-hepatocellular carcinomas metastatic to the liver (non-HCC).
A retrospective study comparing 53 HCC specimens with 32 non-HCC specimens. Immunostaining was performed with HepPar1 and antibodies directed against CD10, CD13, p-CEA, and alpha fetoprotein (AFP).
In the HCC group, a canalicular staining pattern was found for CD13, p-CEA, and CD10 in 51, 43, and 33 specimens, respectively. HepPar1 was positive in 29 and AFP in 17 HCC specimens. In the non-HCC group, canalicular immunostaining for CD10 and p-CEA was confined to non-neoplastic liver tissue. One poorly differentiated cholangiocarcinoma showed apical expression of CD13, resembling to some extent CD13(can). Sensitivity and specificity were 96.2% and 97.0%, respectively, for CD13(can), 81.1% and 100% for p-CEA(can), 62.3% and 100%, for CD10(can), 54.7% and 99.9% for HepPar1, and 32.1% and 100% for AFP.
These results show that CD13(can) is more sensitive in differentiating between HCC and non-HCC than CD10(can), p-CEA(can), HepPar1, and AFP.
氨肽酶N(CD13)在正常肝脏组织和肿瘤性肝脏组织中均有表达,在其中呈现出一种特征性的胆小管模式(CD13(can)),类似于CD10以及抗体与胆汁糖蛋白I(p-CEA)发生交叉反应时所见到的模式。
比较CD13(can)在鉴别肝细胞癌(HCC)与转移至肝脏的非肝细胞癌(非HCC)中的潜在诊断用途。
一项回顾性研究,比较了53例HCC标本与32例非HCC标本。使用HepPar1以及针对CD10、CD13、p-CEA和甲胎蛋白(AFP)的抗体进行免疫染色。
在HCC组中,分别在51例、43例和33例标本中发现CD13、p-CEA和CD10呈现胆小管染色模式。29例HCC标本中HepPar1呈阳性,17例HCC标本中AFP呈阳性。在非HCC组中,CD10和p-CEA的胆小管免疫染色仅限于非肿瘤性肝脏组织。1例低分化胆管癌显示CD13的顶端表达,在一定程度上类似于CD13(can)。CD13(can)的敏感性和特异性分别为96.2%和97.0%,p-CEA(can)为81.1%和100%,CD10(can)为62.3%和100%,HepPar1为54.7%和99.9%,AFP为32.1%和100%。
这些结果表明,在鉴别HCC与非HCC方面,CD13(can)比CD10(can)、p-CEA(can)、HepPar1和AFP更敏感。