E-cadherin and c-Met expression in actinic cheilits and lip squamous cell carcinoma

A Martínez ^[1] ; ML Spencer ^[1] ; J Borlando ^[1] ; M Flores ^[1] ; IG Rojas ^[1]
1. [1] Universidad de Concepción
  
  Universidad de Concepción
  
  Comuna de Concepción, Chile
Localización: Revista clínica de periodoncia, implantología y rehabilitación oral, ISSN-e 0719-0107, Vol. 4, Nº. 3, 2011, págs. 122-125
Idioma: inglés
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Resumen
- Objective: The aim of this study was to assess epithelial expression of E-cadherin and c-Met in normal lip, in actinic cheilitis and lip squamous cell carcinoma. Study Design: Biopsies of normal lip vermillion (NL, n=18), actinic cheilitis (AC, n=37), and lip SCC (n=22) were processed for E-cadherin and c-Met immunodetection. Epithelial and tumor cell expression was scored for each sample considering staining intensity and percentage. Results: E-cadherin expression was significantly reduced in AC and lip SCC as compared to normal lip (P<0.05), with a significant reduction in lip SCC as compared to AC (P=0.003). Expression of c-Met was significantly higher in AC and lip SCC as compared to NL (P<0.05), with a significant increase in lip SCC as compared to AC (P<0.0001). Conclusion: The results showed that epithelial E-cadherin expression is reduced and c-Met expression is increased as lip carcinogenesis progresses, suggesting that these proteins may be useful markers of malignant transformation.