Anticancer research · 2008
EpCAM overexpression is associated with high-grade urothelial carcinoma in the renal pelvis.
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Brunner Andrea, Schaefer Georg, Veits Lothar, Brunner Barbara, Prelog Martina, Ensinger Christian
Аннотация
BACKGROUND: EpCAM serves as an attractive target for immunotherapy due to its expression on the surface of most epithelial cancer cells. Urothelial carcinoma of the renal pelvis (RP-UC) comprises 2.4-4.6% of tumors of the lower urinary tract. To assess the expression of EpCAM in RP-UC a retrospective study was performed.
PATIENTS AND METHODS: Tumor tissue from 42 patients with RP-UC was selected from the archives of the Institute of Pathology, Medical University of Innsbruck, Austria. EpCAM expression was demonstrated by immunohistochemistry using the mouse monoclonal antibody ESA.
RESULTS: EpCAM overexpression was significantly associated with high grade and invasive behaviour (p = 0.014 and p = 0.029) and the presence of lymph node metastases (p = 0.031), but not with the extent of nodal involvement (p = 0.12).
CONCLUSION: In RP-UC, EpCAM overexpression is associated with an aggressive tumor phenotype. The association of EpCAM overexpression with the presence of lymph node metastasis may be of prognostic and therapeutic relevance.
PATIENTS AND METHODS: Tumor tissue from 42 patients with RP-UC was selected from the archives of the Institute of Pathology, Medical University of Innsbruck, Austria. EpCAM expression was demonstrated by immunohistochemistry using the mouse monoclonal antibody ESA.
RESULTS: EpCAM overexpression was significantly associated with high grade and invasive behaviour (p = 0.014 and p = 0.029) and the presence of lymph node metastases (p = 0.031), but not with the extent of nodal involvement (p = 0.12).
CONCLUSION: In RP-UC, EpCAM overexpression is associated with an aggressive tumor phenotype. The association of EpCAM overexpression with the presence of lymph node metastasis may be of prognostic and therapeutic relevance.