Expression of matrix metalloproteinase-2 (MMP-2) and of membrane-type-1-matrix metalloproteinase (MT1-MMP) in transitional cell carcinoma of the upper urinary tract

Hum Pathol. 2000 Feb;31(2):193-200. doi: 10.1016/s0046-8177(00)80219-1.

Abstract

Tumor cell invasion and metastasis are biologically dependent on the proteolytic destruction of surrounding matrix components. Matrix metalloproteinase-2 (MMP-2) is able to cleave type IV collagen, and membrane-type-1-matrix metalloproteinase (MT1-MMP) induces activation of proMMP-2. We investigated the expression of MMP-2 and MT1-MMP using in situ hybridization and immunohistochemistry in 102 cases of transitional cell carcinoma of the upper urinary tract (TCC-UUT). A positive expression of each metalloproteinase was recognized in all samples and was apparent within the cytoplasm of tumor epithelial cells and/or stromal cells situated at the interface between tumor and stroma. Our analysis of clinicopathologic findings showed a relationship between MMP-2 and MT1-MMP expression and stage. The correlation between the MMP-2 protein staining score for tumor epithelial cells and overall survival rate reached significance in the univariate analysis. However, only stage was associated with disease-free and overall survivals in the multivariate analysis. In conclusion, the detection of MMP-2 and MT1-MMP would appear to be of limited value in informing the prognosis of TCC-UUT.

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Carcinoma, Transitional Cell / chemistry
  • Carcinoma, Transitional Cell / genetics*
  • Carcinoma, Transitional Cell / mortality
  • Disease-Free Survival
  • Female
  • Gene Expression*
  • Humans
  • Immunohistochemistry
  • In Situ Hybridization
  • Male
  • Matrix Metalloproteinase 2 / analysis
  • Matrix Metalloproteinase 2 / genetics*
  • Matrix Metalloproteinases / analysis
  • Matrix Metalloproteinases / genetics*
  • Matrix Metalloproteinases, Membrane-Associated
  • Metalloendopeptidases*
  • Middle Aged
  • RNA, Messenger / analysis
  • Survival Rate
  • Urologic Neoplasms / chemistry
  • Urologic Neoplasms / genetics*
  • Urologic Neoplasms / mortality

Substances

  • RNA, Messenger
  • Matrix Metalloproteinases
  • Matrix Metalloproteinases, Membrane-Associated
  • Metalloendopeptidases
  • Matrix Metalloproteinase 2