Carbonic Anhydrase IX Overexpression is Associated with Diminished Prognosis in Esophageal Cancer and Correlates with Her-2 Expression

被引:35
作者
Birner, Peter [1 ]
Jesch, Bettina
Friedrich, Julia [1 ]
Riegler, Martin
Zacherl, Johannes
Hejna, Michael [2 ]
Wrba, Fritz [1 ]
Schultheis, Andrea [3 ]
Schoppmann, Sebastian F. [4 ]
机构
[1] Med Univ Vienna, Inst Pathol, Vienna, Austria
[2] Med Univ Vienna, Dept Oncol, Vienna, Austria
[3] Kaiserin Elisabeth Spital, Dept Pathol, Vienna, Austria
[4] Univ Vienna, Dept Surg, Comprehens Canc Ctr Vienna, Vienna, Austria
关键词
GROWTH-FACTOR; NECK-CANCER; INTRINSIC MARKER; POOR-PROGNOSIS; CELL CARCINOMA; TUMOR HYPOXIA; ADVANCED HEAD; SOLID TUMORS; HIF-1-ALPHA; PROTEIN;
D O I
10.1245/s10434-011-1730-3
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
Background. Carbonic anhydrase IX (CAIX), a transmembrane glycoprotein, seems to play a key role in the adaption of tumor cells to hypoxia. This study was designed to investigate the clinical role of CAIX and its association with Her-2 in a large cohort of adeno- (AC) and squamous cell carcinomas (SCC) of the esophagus and their metastases. Methods. Expression of CAIX and Her-2 was investigated immunohistochemically in formalin fixed, paraffin-embedded tissue from 330 esophageal cancers (182 ACS, 148 SCCs). Corresponding lymph node metastases in 137 cases, distant metastases in 34 cases, and local recurrences in 14 cases were analyzed for CAIX expression. Results. A total of 147 cases (44.5%) showed strong CAIX expression (AC: 46.7%; ACC: 41.9%). CAIX status of the primary tumor influenced CAIX expression in corresponding lymph node metastases (P < 0.001, linear regression). High CAIX-expression was an independent prognostic factor for shorter overall and disease-free survival (P a parts per thousand currency sign 0.05, Cox regression). Twenty-nine ACs (15.9%) and 6 SCCs (4.1%) showed Her-2 overexpression. In AC, a significant positive correlation between the Her-2 status and CAIX expression was found (P = 0.009, chi-square test). Conclusions. High CAIX expression is associated with shorter survival in esophageal cancer, and the hypoxic phenotype seems to be preserved at least during formation of lymph node metastases. Inhibition of CAIX might reduce the ability of tumor cells to establish disseminated disease. In Her-2 overexpressing ACs, blocking of this tyrosine kinase, e.g., by monoclonal antibodies, might induce this effect.
引用
收藏
页码:3330 / 3337
页数:8
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