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Nuclear nonmetastatic protein 23-H1 expression and epithelial-mesenchymal transition in laryngeal carcinoma: A pilot investigation.
Head & Neck 2018 September
BACKGROUND: In epithelial-to-mesenchymal transition, epithelial cells lose their features, acquiring a mesenchymal-like phenotype. Nm23-H1 protein relates to tumor cells' metastatic potential, its low expression in carcinomas often meaning a poor prognosis. This study newly investigated the role of nuclear nm23-H1 in laryngeal squamous cell carcinoma epithelial-to-mesenchymal transition.
METHODS: Immunohistochemical analyses of nuclear nm23-H1, E-cadherin, N-cadherin, Snail, Zinc finger E-box binding homeobox (ZEB)1, and ZEB2 were performed in 33 consecutive patients with laryngeal SCC.
RESULTS: Mean nuclear nm23-H1 expression was lower in patients whose disease recurred (P = .0046). Disease-free survival (DFS) was longer for patients whose nuclear nm23-H1 expression was ≥10% (P = .0083). Nuclear nm23-H1 and E-cadherin expressions correlated directly (P = .018). Mean E-cadherin expression was lower in patients whose disease recurred (P = .03). The DFS was shorter in patients with ZEB2 expression ≥5% (P = .006).
CONCLUSIONS: Nuclear nm23-H1 expression warrants further investigation in laryngeal SCC as a prognostic marker identifying patients at higher risk of recurrence. nm23-H1 targeted treatments may be capable of regulating epithelial-to-mesenchymal transition.
METHODS: Immunohistochemical analyses of nuclear nm23-H1, E-cadherin, N-cadherin, Snail, Zinc finger E-box binding homeobox (ZEB)1, and ZEB2 were performed in 33 consecutive patients with laryngeal SCC.
RESULTS: Mean nuclear nm23-H1 expression was lower in patients whose disease recurred (P = .0046). Disease-free survival (DFS) was longer for patients whose nuclear nm23-H1 expression was ≥10% (P = .0083). Nuclear nm23-H1 and E-cadherin expressions correlated directly (P = .018). Mean E-cadherin expression was lower in patients whose disease recurred (P = .03). The DFS was shorter in patients with ZEB2 expression ≥5% (P = .006).
CONCLUSIONS: Nuclear nm23-H1 expression warrants further investigation in laryngeal SCC as a prognostic marker identifying patients at higher risk of recurrence. nm23-H1 targeted treatments may be capable of regulating epithelial-to-mesenchymal transition.
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