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Pubmed for Handhelds

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  • Title: MicroRNA-23b inhibits enterovirus 71 replication through downregulation of EV71 VPl protein.
    Author: Wen BP, Dai HJ, Yang YH, Zhuang Y, Sheng R.
    Journal: Intervirology; 2013; 56(3):195-200. PubMed ID: 23594713.
    Abstract:
    Enterovirus 71 (EV71) is one of the causative pathogens of hand-foot-and-mouth disease and effective antiviral agents and vaccines against this virus have, to date, not been available. MicroRNAs (miRNAs) are a recently discovered class of RNAs with the function of post-transcriptional gene expression regulation. It has been demonstrated that miRNAs play important roles in the complicated interaction network between virus and host, while few studies have explored the role of miRNAs in EV71 infection. A recent study showed that hsa-miR-23b was downregulated significantly in cell-infected viruses. To address this issue, biological software miRanda was first used to predict possible target sites of miR-23b at EV71 gene sequence, then to confirm it by luciferase assay. miR-23b mimics were transfected to verify its effects on infection of EV71. These results suggest that miR-23b and upregulation of miR-23b inhibited the replication of EV71 by targeting at EV71 3'UTR conserved sequence. Taken together, miR-23b could inhibit EV71 replication through downregulation of EV71 VPl protein. These results may enhance our understanding on the prevention and treatment of hand-foot-and-mouth disease caused by EV71 infection.
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