Abstract
BACKGROUND: Accumulating evidences have stressed the association between hypoxanthine phosphoribosyl transferase 1 (HPRT1) overexpression and the poor prognosis of various cancers. Our study, herein, preliminarily investigates the involvement of HPRT1 in nasopharyngeal carcinoma (NPC). METHODS: Data from TCGA were applied to read HPRT1 expression in diverse cancers including NPC and to predict the prognosis of NPC patients. The total RNA and protein from NPC cells and nasopharyngeal epithelial cells NP460 were extracted to quantify HPRT1 expression. Following the completion of transfection, the proliferation and migration of NPC cells were determined employing MTT, colony formation and western blot assay (the quantification on expressions of protein related to proliferation and migration). RESULTS: HPRT1 was differentially expressed in diverse cancers yet particularly highly expressed in NPC, and high HPRT1 expression was related to the poor prognosis of NPC patients. Also, HPRT1 expression was higher in NPC cells and its silencing diminished the viability and proliferation of NPC cells and reduced the expressions of CyclinD1, CyclinE, Multidrug Resistance Protein 1 (MDR1), matrix metalloproteinase (MMP)-2, and MMP-9. CONCLUSION: This study preliminarily explored the involvement of HPRT1 in NPC based on some cellular assays in vitro, which may provide evidence for investigating the specific mechanism underlying the effects of HPRT1 in cancers.