中文摘要：

【正】Objective:To explore the role of proto-oncogene Pim-1 in the proliferation and migration of nasopharyngeal carcinoma(NPC) cells.Methods:Pim-1 expressions in NPC cell lines CNE1,CNE1-GL,CNE-2Z and C666-1 were examined by KT-PCR,western blotting and immunoflucesence,respectively.After CNE1,CNE1-GL and C666-1 cells were treated with different concentrations of Pim-1 special inhibitor,quercelagetin,the cell viability,colony formation rate and migration ability were analyzed.Results:Pim-1 expression was negative in well-differentiated CNE1 cells,whereas expressed weakly positive in poor-differentiated CNE-2Z cells and strongly positive in undifferentiated C666-1 cells.Interestingly,CNE1-GL cells that derived from CNE1 transfected with an Epstein Barr virus latent membrane protein-1 over-expression plasmid displayed stronger expression of Pim-1.Treatment of CNE1-GL and C666-1 cells with quercelagetin significantly decreased the cell viability,colony formation rate and migration ability but not the CNE1 cells.Conclusions:These findings suggest that Pim-1 overexpression contributes to NPC proliferation and migration,and targeting Pim-1 may be a potential treatment for anti-Pim-1-expressed NPCs.