The enigmatic role of nucleophosmin in malignant melanoma: Does it have an effect?
2011
Aylin Orgen Calli | Aysegül Sari | Gözde Evcim | Aysegül Altinboga | Canan Sadullahoglu | Murat Ermete
Background: Melanoma is quite a heterogeneous group of diseases of the skin. Prognostic markers of tumor behavior are important to precisely assign individual patients for appropriate treatment protocols. Aim: The aim of our first study was to investigate nucleophosmin expression in melanoma patients and to determine its relationship with the tumor characterictics and patient prognosis. Materials and Methods: We analyzed the immunohistochemical expression of nucleophosmin in 55 melanoma patients. The immunostaining pattern was classified into two groups: Diffuse nuclear and nucleolar relocalization. We also investigated the relationship between the expression of nucleophosmin and the clinicopathological parameters sucssh as Clark level, tumor thickness, stage, histological type, location, and survey. Results: In all cases the neoplastic cells were strongly positive for nucleophosmin (14 cases diffuse nuclear, 41 cases nucleolar relocalization). No correlation was demonstrated between the expression pattern of nucleophosmin and the clinicopathological parameters and survey. Conclusions: The implications of our results, nevertheless, are that the immunohistochemical detection of nucleophosmin is not a valuable tool for predicting the outcome of patients with melanoma or identifying subgroups of patients who may be at a higher risk.
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