Journal of Cancer Research and Clinical Oncology

, Volume 129, Issue 7, pp 415–422

Impact of c-Met expression on angiogenesis in soft tissue sarcomas: correlation to microvessel-density

  • Cornelius Kuhnen
  • Thomas Muehlberger
  • Maria Honsel
  • Edina Tolnay
  • Hans Ulrich Steinau
  • Klaus-Michael Müller
Original Paper

DOI: 10.1007/s00432-003-0456-4

Cite this article as:
Kuhnen, C., Muehlberger, T., Honsel, M. et al. J Cancer Res Clin Oncol (2003) 129: 415. doi:10.1007/s00432-003-0456-4

Abstract

Purpose and methods

The c-Met protein is significant for oncogenesis and angiogenesis within the c-Met/HGF/SF-mediator system. The aim of this study was the analysis of c-Met immunoexpression/-synthesis and microvessel density as parameters for angiogenesis and prognosis in 115 soft tissue sarcomas.

Results

C-Met could be detected by immunohistochemistry in 87% of sarcomas. In all, 60.9% of cases exhibited absent or faint expression of c-Met protein, and 39.1% high expression of c-Met protein with a correlation between tumor grading and c-Met immunoexpression. Using in situ hybridization with detection of c-met-mRNA-transcripts, c-Met protein synthesis within tumor cells could be demonstrated. A statistically significant correlation between c-Met immunoexpression and tumor microvessel density was found. No prognostic value of c-Met expression and microvessel density could be detected in 56 patients with clinical follow-up (P=0.8506 and P=0.9329 for disease-free survival).

Conclusions

The results underline a role of c-Met as an oncoprotein in soft tissue sarcomas with correlation between immunoexpression and grading. The statistically significant correlation between c-Met expression and microvessel density (as a parameter of tumor angiogenesis) suggests an angiogenic function of the c-Met/HGF/SF mediator system in malignant mesenchymal tumors.

Keywords

AngiogenesisSoft tissue sarcomac-Met oncoproteinMicrovessel density

Copyright information

© Springer-Verlag 2003

Authors and Affiliations

  • Cornelius Kuhnen
    • 1
  • Thomas Muehlberger
    • 2
  • Maria Honsel
    • 1
  • Edina Tolnay
    • 1
  • Hans Ulrich Steinau
    • 3
  • Klaus-Michael Müller
    • 1
  1. 1.Institute for Pathology, Limb tumor registryUniversity Hospital BergmannsheilBochumGermany
  2. 2.Department of Plastic and Reconstructive Surgery, University HospitalHannover Medical SchoolHannoverGermany
  3. 3.Department of Plastic Reconstructive and Hand Surgery-Burn Centre, Limb tumor registryUniversity Hospital Bergmannsheil44789 BochumGermany