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Andes Hantavirus-Infection of a 3D Human Lung Tissue Model Reveals a Late Peak in Progeny Virus Production Followed by Increased Levels of Proinflammatory Cytokines and VEGF-A
Umeå University, Faculty of Medicine, Department of Clinical Microbiology, Infectious Diseases.
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2016 (English)In: PLoS ONE, ISSN 1932-6203, E-ISSN 1932-6203, Vol. 11, no 2, e0149354Article in journal (Refereed) Published
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Abstract [en]

Andes virus (ANDV) causes hantavirus pulmonary syndrome (HPS), a severe acute disease with a 40% case fatality rate. Humans are infected via inhalation, and the lungs are severely affected during HPS, but little is known regarding the effects of ANDV-infection of the lung. Using a 3-dimensional air-exposed organotypic human lung tissue model, we analyzed progeny virus production and cytokine-responses after ANDV-infection. After a 7-10 day period of low progeny virus production, a sudden peak in progeny virus levels was observed during approximately one week. This peak in ANDV-production coincided in time with activation of innate immune responses, as shown by induction of type I and III interferons and ISG56. After the peak in ANDV production a low, but stable, level of ANDV progeny was observed until 39 days after infection. Compared to uninfected models, ANDV caused long-term elevated levels of eotaxin-1, IL-6, IL-8, IP-10, and VEGF-A that peaked 20-25 days after infection, i.e., after the observed peak in progeny virus production. Notably, eotaxin-1 was only detected in supernatants from infected models. In conclusion, these findings suggest that ANDV replication in lung tissue elicits a late proinflammatory immune response with possible long-term effects on the local lung cytokine milieu. The change from an innate to a proinflammatory response might be important for the transition from initial asymptomatic infection to severe clinical disease, HPS.

Place, publisher, year, edition, pages
2016. Vol. 11, no 2, e0149354
Keyword [en]
Andes virus, hantavirus pulmonary syndrome, HPS
National Category
Microbiology in the medical area
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URN: urn:nbn:se:umu:diva-118792DOI: 10.1371/journal.pone.0149354ISI: 000371163000009PubMedID: 26907493OAI: oai:DiVA.org:umu-118792DiVA: diva2:918449
Available from: 2016-04-11 Created: 2016-04-04 Last updated: 2017-11-30Bibliographically approved

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