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A Novel Strategy for Live Detection of Viral Infection in Drosophila melanogaster
Umeå University, Faculty of Medicine, Department of Molecular Biology (Faculty of Medicine). BioMediTech, FI-33014 University of Tampere, Finland.
Umeå University, Faculty of Medicine, Department of Molecular Biology (Faculty of Medicine). BioMediTech, FI-33014 University of Tampere, Finland.
2016 (English)In: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 6, 26250Article in journal (Refereed) Published
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Abstract [en]

We have created a transgenic reporter for virus infection, and used it to study Nora virus infection in Drosophila melanogaster. The transgenic construct, Munin, expresses the yeast transcription factor Gal4, tethered to a transmembrane anchor via a linker that can be cleaved by a viral protease. In infected cells, liberated Gal4 will then transcribe any gene that is linked to a promoter with a UAS motif, the target for Gal4 transcription. For instance, infected cells will glow red in the offspring of a cross between the Munin stock and flies with a UAS-RFPnls transgene (expressing a red fluorescent protein). In such flies we show that after natural infection, via the faecal-oral route, 5-15% of the midgut cells are infected, but there is little if any infection elsewhere. By contrast, we can detect infection in many other tissues after injection of virus into the body cavity. The same principle could be applied for other viruses and it could also be used to express or suppress any gene of interest in infected cells.

Place, publisher, year, edition, pages
2016. Vol. 6, 26250
National Category
Medical Biotechnology (with a focus on Cell Biology (including Stem Cell Biology), Molecular Biology, Microbiology, Biochemistry or Biopharmacy)
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URN: urn:nbn:se:umu:diva-123371DOI: 10.1038/srep26250ISI: 000375996600001PubMedID: 27189868OAI: oai:DiVA.org:umu-123371DiVA: diva2:946187
Available from: 2016-07-04 Created: 2016-07-01 Last updated: 2017-11-28Bibliographically approved

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Ekström, Jens-OlaHultmark, Dan

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