Research Data Leeds Repository
Mosquito saliva enhances virus infection through sialokinin-dependent vascular leakage
Citation
Lefteri, Daniella A. and Bryden, Steven and Pingen, Marieke and Terry, Sandra and McCafferty, Ailish and Beswick, Emily F. and Georgiev, Georgi and Van der Laan, Marleen and Mastrullo, Valeria and Campagnolo, Paola and Waterhouse, Robert M. and Varjak, Margus and Merits, Andres and Fragkoudis, Rennos and Griffin, Stephen and Shams, Kave and Pondeville, Emilie and McKimmie, Clive (2022) Mosquito saliva enhances virus infection through sialokinin-dependent vascular leakage. University of Leeds. [Dataset] https://doi.org/10.5518/1163
Dataset description
Viruses transmitted by Aedes mosquitoes are an increasingly important global cause of disease. Defining common determinants of host susceptibility to this large group of het- erogenous pathogens is key for informing the rational design of panviral medicines. Infection of the vertebrate host with these viruses is enhanced by mosquito saliva, a complex mixture of salivary-gland-derived factors and microbiota. We show that the enhancement of infection by saliva was dependent on vascular function and was inde- pendent of most antisaliva immune responses, including salivary microbiota. Instead, the Aedes gene product sialokinin mediated the enhancement of virus infection through a rapid reduction in endothelial barrier integrity. Sialokinin is unique within the insect world as having a vertebrate-like tachykinin sequence and is absent from nonvector competent Anopheles mosquitoes, whose saliva was not proviral and did not induce sim- ilar vascular permeability. Therapeutic strategies targeting sialokinin have the potential to limit disease severity following infection with Aedes-mosquito-borne viruses.
Keywords: | mosquitoes ; arbovirus ; inflammation ; endothelium | ||||||
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Subjects: | C000 - Biological sciences > C500 - Microbiology > C540 - Virology | ||||||
Divisions: | Faculty of Medicine and Health > School of Medicine | ||||||
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License: | Creative Commons Attribution 4.0 International (CC BY 4.0) | ||||||
Date deposited: | 08 Jun 2022 13:32 | ||||||
URI: | https://archive.researchdata.leeds.ac.uk/id/eprint/974 | ||||||