EBV-miR-BART1 is involved in regulating metabolism-associated genes in nasopharyngeal carcinoma.

EBV-miR-BART1 has been found to be highly expressed in some cancers including nasopharyngeal carcinoma (NPC), but its exact roles in the pathogenesis of NPC remain unclear. Here, we did RNA deep sequencing to compare the gene expression profile between EBV-miR-BART1-expressing CNE1 cells and the control cells to determine the possible effects of EBV-miR-BART1 in NPC. Gene expression profiling analysis unexpectedly showed a significant number of up- and down-modulated metabolism-associated genes, such as G6PD, SAT1, ASS1, PAST1, FUT1, SGPL1, DHRS3, B4GALT1, PHGDH, IDH2, PISD, UGT8, LDHB and GALNT1, in EBV-miR-BART1-expressing NPC cells, which were next confirmed by RT-qPCR. Moreover, of these metabolism-genes, PSAT1 and PHGDH expression levels were significantly upregulated and most of other genes were obviously up-expressed in NPC specimens compared with chronic nasopharyngitis (CNP) tissues. Collectively, we for the first time found the effects of EBV-miR-BART1 on the expression of mechanism-associated genes in NPC, suggesting a novel role of EBV-miR-BART1 in cancer metabolism, which remains to be fully elucidated.