Microvessel quantification and its possible relation with liver metastasis in colorectal cancer

Cancer
S TomisakiK Sugimachi

Abstract

Several studies have proven the usefulness of microvessel quantification as a prognostic factor for patients with various malignant tumors. The aim of this paper was to clarify the relationship between microvessel density (MVD) as a parameter of tumor angiogenesis and liver metastasis in colorectal cancer. A total of 175 patients with advanced colorectal cancer were evaluated (58 with concurrent liver metastases). Microvessel quantification was performed immunohistochemically, using monoclonal antibodies against endothelial protein Factor VIII-related antigen (F8RA) and against endothelial surface marker CD34. Finally, the relationship between MVD and liver metastasis was analyzed. A significant correlation was observed between MVD for F8RA and MVD for CD34 (n = 175, r = 0.9560, P = 0.0001). MVD in the tumors stained for F8RA ranged from 15.2 to 78.6 microvessels per x 200 field (mean 32.8 +/- 11.7), while the tumors with liver metastatic disease compared with the tumors without liver metastasis (F8RA; mean 36.1 +/- 11.3 vs. 31.2 +/- 11.5, P = 0.0090; CD34; mean 64.4 +/- 20.4 vs. 52.0 +/- 19.4, P = 0.0010). Microvessel quantification within a colorectal tumor using immunohistochemical staining methods has shown a significant co...Continue Reading

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