Expression of c-MET, low-molecular-weight cytokeratin, matrix metalloproteinases-1 and -2 in spinal chordoma

Takahiko Naka, Carsten Boltze, Amir Samii, Madjid Samii, Christian Herold, Helmut Ostertag, Yukihide Iwamoto, Yoshinao Oda, Masazumi Tsuneyoshi, Doerthe Kuester, Albert Roessner

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)


Aims: In skull base chordoma, c-MET expression has been reported to correlate with younger patient age and favourable prognosis; however, it also contributes to tumour invasiveness, especially in recurrent lesions, suggesting variable roles for c-MET according to clinical status. The aim of this study was to investigate the significance of c-MET expression in spinal chordoma, which affects patients who are 10-20 years older than those with skull base chordoma. Methods and results: Using immunohistochemical techniques, the expression of c-MET and its ligand, hepatocyte growth factor (HGF) was investigated in 34 primary spinal chordomas and compared with other clinicopathological parameters. Expression of c-MET and HGF was observed in 85.3 and 21.7% of lesions, respectively. c-MET expression correlated with the expression of an epithelial marker, low-molecular-weight cytokeratin (CAM5.2). Lesions with higher c-MET expression showed significantly stronger expression of proteinases, including matrix metalloproteinase (MMP)-1 and MMP-2. However, c-MET expression was not associated with patient age, proliferative ability estimated by MIB-1 labelling index, or prognosis. Conclusions: c-MET expression was observed in most spinal chordomas and correlated with the expression of CAM5.2, suggesting a relationship to an epithelial phenotype.

Original languageEnglish
Pages (from-to)607-613
Number of pages7
Issue number5
Publication statusPublished - Apr 2009

All Science Journal Classification (ASJC) codes

  • Pathology and Forensic Medicine
  • Histology


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