ArticleDiagnostic pathology2025
The clinical value of the EpCAM biomarker and its association with immune cell infiltration in bladder cancer.
Article in Diagnostic pathology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundBladder cancer is characterized by its heterogeneous nature and high propensity for recurrence and progression. The absence of reliable diagnostic and prognostic biomarkers to accurately identify high-risk patients further complicates the clinical management of the disease. MOC-31, an antibody that targets epithelial cell adhesion molecule (EpCAM), is utilized to distinguish between mesothelioma and metastatic cancer, but its clinical utility, prognostic value and functional dynamics in bladder cancer have yet to be verified.
methodsA comprehensive analysis of EpCAM expression and its associations with key clinicopathological parameters was performed via The Cancer Genome Atlas (TCGA). Additionally, we retrospectively assessed EpCAM expression in our bladder cancer cohort using MOC-31 antibody and examined its prognostic value and correlation with clinicopathological features. The cBioPortal, STRING and TIMER databases were used to explore the interactions between EpCAM expression, immune cell infiltration and immune checkpoint genes.
resultsThe difference in EpCAM expression varied widely across various cancer types and was strongly correlated with advanced cancer stage. EpCAM staining with MOC-31 exhibited membranous positivity in 51.7% of the analysed cohort. Kaplan-Meier survival analysis revealed a discernible trend suggesting a poorer prognosis for patients with low EpCAM expression than for those with high EpCAM expression. Protein-protein interaction demonstrated that EFGR, HER2 and Claudin-7 are key EpCAM interactors. A strong association was observed between EpCAM expression and immune cell infiltration as well as immune-related genes.
conclusionThis study highlights the prognostic value of EpCAM in bladder cancer, revealing a strong link between EpCAM expression and disease pathogenesis. These results underscore the need for further research to validate these findings and explore the significance of EpCAM as a therapeutic target in managing bladder cancer.
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