Characterization of a murine model of non-lethal, symptomatic dengue virus infection

Vanessa Sarathy, Mellodee White, Li Li, Jaclyn A. Kaiser, Gerald Campbell, Gregg Milligan, Nigel Bourne, Alan Barrett

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The mosquito-borne disease dengue is caused by four serologically- and genetically-related viruses, termed DENV-1 to DENV-4. Historical setbacks due to lack of human-like mouse models of dengue were partially remedied with characterization of lethal DENV-2 infection in immunocompromised AG129 mice (deficient in IFN-α/β/γ receptors). Recently, our group established lethal AG129 mouse infection models of DENV-1, DENV-3, and DENV-4 using human isolates. Here we compare a non-lethal, disseminated model of DENV-3 infection using strain D83-144 to that of the lethal outcome following infection by strain C0360/94. Both strains belong to DENV-3 genotype II and differ by only 13 amino acids. Intraperitoneal inoculation of AG129 mice with strain D83-144 led to clinical signs of dengue infection, such as cytokine induction, thrombocytopenia, and systemic infection. However, C0360/94 infection led to features of severe human dengue, including coagulopathy and lethal outcome, whereas D83-144 infection does not. This study is the first to investigate a low passage, non-mouse lethal strain in AG129 mice and demonstrates that D83-144 infection induces milder features of human dengue than those induced by lethal C0360/94 infection. The results suggest that the AG129 mouse model has applications to investigate factors associated with mild or severe disease.

Original languageEnglish (US)
Article number4900
JournalScientific Reports
Volume8
Issue number1
DOIs
StatePublished - Dec 1 2018

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Dengue Virus
Virus Diseases
Infection
Dengue
Severe Dengue
Culicidae
Thrombocytopenia
Genotype
Cytokines
Viruses
Amino Acids

ASJC Scopus subject areas

  • General

Cite this

Characterization of a murine model of non-lethal, symptomatic dengue virus infection. / Sarathy, Vanessa; White, Mellodee; Li, Li; Kaiser, Jaclyn A.; Campbell, Gerald; Milligan, Gregg; Bourne, Nigel; Barrett, Alan.

In: Scientific Reports, Vol. 8, No. 1, 4900, 01.12.2018.

Research output: Contribution to journalArticle

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