Abstract
miRNAs (microRNAs) are a class of non-coding small RNAs. The Epstein-Barr-virus (EBV) encoded miR-BHRF1-1 is barely expressed in most nasopharyngeal carcinoma (NPC) cells with EBV latent infection. Here, we used a strategy of overexpression and inhibition of miR-BHRF1-1 and showed that miR-BHRF1-1 is involved in TPA-induced accumulation of EBV lytic proteins and viral copies in late lytic cycle. The data further suggested that the miR-BHRF1-1-potentiated induction of EBV lytic replication was accompanied by inhibiting p53 expression. Our results demonstrated that the EBV original pathogen miR-BHRF1-1 is involved in the control of EBV late lytic replication by directly targeting the host p53 gene.
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