Dietrich, I., Shi, X. , McFarlane, M. , Watson, M., Blomström, A.-L., Skelton, J. K., Kohl, A. , Elliott, R. M. and Schnettler, E. (2017) The antiviral RNAi response in vector and non-vector cells against orthobunya viruses. PLoS Neglected Tropical Diseases, 11(1), e0005272. (doi: 10.1371/journal.pntd.0005272) (PMID:28060823) (PMCID:PMC5245901)
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Abstract
Background: Vector arthropods control arbovirus replication and spread through antiviral innate immune responses including RNA interference (RNAi) pathways. Arbovirus infections have been shown to induce the exogenous small interfering RNA (siRNA) and Piwi-interacting RNA (piRNA) pathways, but direct antiviral activity by these host responses in mosquito cells has only been demonstrated against a limited number of positive-strand RNA arboviruses. For bunyaviruses in general, the relative contribution of small RNA pathways in antiviral defences is unknown. Methodology/Principal Findings: The genus Orthobunyavirus in the Bunyaviridae family harbours a diverse range of mosquito-, midge- and tick-borne arboviruses. We hypothesized that differences in the antiviral RNAi response in vector versus non-vector cells may exist and that could influence viral host range. Using Aedes aegypti-derived mosquito cells, mosquito-borne orthobunyaviruses and midge-borne orthobunyaviruses we showed that bunyavirus infection commonly induced the production of small RNAs and the effects of the small RNA pathways on individual viruses differ in specific vector-arbovirus interactions. Conclusions/Significance: These findings have important implications for our understanding of antiviral RNAi pathways and orthobunyavirus-vector interactions and tropism.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Mcdonald, Dr Melanie and Elliott, Professor Richard and Skelton, Miss Jessica and Blomstrom, Dr Anne-Lie and Shi, Dr Xiaohong and Dietrich, Dr Isabelle and Schnettler, Dr Esther and Kohl, Professor Alain |
| Authors: | Dietrich, I., Shi, X., McFarlane, M., Watson, M., Blomström, A.-L., Skelton, J. K., Kohl, A., Elliott, R. M., and Schnettler, E. |
| College/School: | College of Medical Veterinary and Life Sciences > School of Infection & Immunity College of Medical Veterinary and Life Sciences > School of Infection & Immunity > Centre for Virus Research |
| Journal Name: | PLoS Neglected Tropical Diseases |
| Publisher: | Public Library of Science |
| ISSN: | 1935-2727 |
| ISSN (Online): | 1935-2735 |
| Copyright Holders: | Copyright © 2017 Dietrich et al. |
| First Published: | First published in PLoS Neglected Tropical Diseases 11(1):e0005272 |
| Publisher Policy: | Reproduced under a Creative Commons License |
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