Low expression of ZMYND8 correlates with aggressive features and poor prognosis in nasopharyngeal carcinoma

Purpose: ZMYND8 is closely correlated with cancerous proliferation and invasiveness. However, its prognostic value has not been estimated in a nasopharyngeal carcinoma (NPC). The purpose of this study was to elucidate the status of ZMYND8 expression and its prognostic significance in NPCs. Methods: The status of ZMYND8 expression was investigated by immunohistochemistry for NPC samples in the study. The cutoff value of ZMYND8 expression was confirmed in NPCs using ROC-curve analysis. Correlations between ZMYND8 expression and clinicopathological variables and patient prognosis were analyzed by various statistical methods. Results: Our study showed that low expression of ZMYND8 strongly correlated with late T stage in NPCs (P<0.05). Kaplan-Meier survival analysis revealed a significant association between low ZMYND8 expression and worse overall survival (P<0.05). Most importantly, Cox regression analysis confirmed ZMYND8 expression in NPC could be an independent prognostic factor. Conclusion: Low expression of ZMYND8 could be of importance, due to its displaying more aggressive behavior in NPC. Therefore, ZMYND8 expression might serve as an independent prediction factor in patients with NPCs.