期刊
JOURNAL OF GENERAL VIROLOGY
卷 87, 期 -, 页码 1985-1989出版社
MICROBIOLOGY SOC
DOI: 10.1099/vir.0.81827-0
关键词
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It was recently shown that infection of ISE6 tick cells by a recombinant Semliki Forest virus (SFV) expressing a heterologous gene induced small interfering RNAs (siRNAs) and silencing of the gene. To gain information on RNA interference (RNAi) in ticks, three known viral inhibitors that act in different ways, the NS1 protein of Influenza virus, NSs of Tospovirus Tomato spotted wilt virus and HC-Pro of Zucchini yellow mosaic virus were expressed and investigated to determine if they antagonize induced RNAi. Using the recombinant SFV replicon expressing firefly luciferase, silencing was induced and the suppressor activity of these inhibitors during or after initiation of siRNA synthesis was tested, to determine which step of the RNAi pathway is impaired. It was found that these proteins, identified in mammalian or plant systems, also display activity in tick cells. These data suggest that ticks utilize a mechanism similar to the one found in other eukaryotes.
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