MMP-7, MMP-8, and MMP-9 in oral and cutaneous squamous cell carcinomas

Oral Surg Oral Med Oral Pathol Oral Radiol. 2015 Apr;119(4):459-67. doi: 10.1016/j.oooo.2014.12.019. Epub 2015 Jan 6.

Abstract

Objectives: Oral squamous cell carcinoma (OSCC) and cutaneous squamous cell carcinoma (CSCC) are epithelial neoplasms, of which OSCC has a worse prognosis. Matrix metalloproteinases (MMPs) are involved in the initiation, invasion, metastasis, and defense of cancer. This study aimed to compare differences in MMP expression in these cancers.

Study design: Sixty-one patients with early-stage (T1-T2 N0 M0) cancers, of which 36 were OSCC and 25 CSCC, were enrolled into this study. Immunohistochemical staining was performed with MMP-7, MMP-8, and MMP-9 antibodies.

Results: MMP-7 expression was stronger in OSCC than in CSCC, mainly in the invasive front. MMP-8 was absent and MMP-9 was mildly expressed in OSCC and CSCC cells. However, MMP-8 and MMP-9 were positive in peritumoral inflammatory cells in both cancers. In addition, MMP-7, MMP-8, and MMP-9 were not associated with the overall survival of patients with OSCC and CSCC patients.

Conclusions: The increased expression of MMP-7 in the invasive front may partly explain the aggressiveness of OSCC.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aged
  • Biomarkers, Tumor / metabolism
  • Carcinoma, Squamous Cell / enzymology*
  • Female
  • Humans
  • Immunohistochemistry
  • Male
  • Matrix Metalloproteinase 7 / metabolism*
  • Matrix Metalloproteinase 8 / metabolism*
  • Matrix Metalloproteinase 9 / metabolism*
  • Middle Aged
  • Mouth Neoplasms / enzymology*
  • Skin Neoplasms / enzymology*

Substances

  • Biomarkers, Tumor
  • Matrix Metalloproteinase 7
  • Matrix Metalloproteinase 8
  • Matrix Metalloproteinase 9