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

Cancer. 1996 Apr 15;77(8 Suppl):1722-8. doi: 10.1002/(SICI)1097-0142(19960415)77:8<1722::AID-CNCR46>3.0.CO;2-Z.

Abstract

Background: 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.

Methods: 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.

Results: 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).

Conclusions: Microvessel quantification within a colorectal tumor using immunohistochemical staining methods has shown a significant correlation between MVD and liver metastasis. Tumors with a greater MVD may thus have a greater hematogenous metastatic propensity.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aged
  • Antibodies, Monoclonal
  • Antigens, CD34 / analysis
  • Colorectal Neoplasms / blood supply*
  • Colorectal Neoplasms / pathology*
  • Colorectal Neoplasms / surgery
  • Female
  • Humans
  • Immunohistochemistry
  • Liver Neoplasms / secondary*
  • Liver Neoplasms / surgery
  • Male
  • Middle Aged
  • Neoplasm Staging
  • Neovascularization, Pathologic / metabolism*
  • Staining and Labeling / methods
  • von Willebrand Factor / analysis

Substances

  • Antibodies, Monoclonal
  • Antigens, CD34
  • von Willebrand Factor