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CHARACTERIZATION OF RECENT AND MINIMALLY PASSAGED BRAZILIAN DENGUE VIRUSES INDUCING ROBUST INFECTION IN RHESUS MACAQUES
Author
Borges, Maria Beatriz
Marchevsky, Renato Sergio
Mendes, Ygara S.
Mendes, Luiz Gustavo
Duarte, Ana Claudia
Cruz, Michael
Filippis, Ana Maria Bispo de
Vasconcelos, Pedro Fernando C.
Freire, Marcos
Homma, Akira
Mossman, Sally
Lepine, Edith
Vanloubbeeck, Yannick
Lorin, Clarisse
Malice, Marie-Pierre
Caride, Elena
Warter, Lucile
Marchevsky, Renato Sergio
Mendes, Ygara S.
Mendes, Luiz Gustavo
Duarte, Ana Claudia
Cruz, Michael
Filippis, Ana Maria Bispo de
Vasconcelos, Pedro Fernando C.
Freire, Marcos
Homma, Akira
Mossman, Sally
Lepine, Edith
Vanloubbeeck, Yannick
Lorin, Clarisse
Malice, Marie-Pierre
Caride, Elena
Warter, Lucile
Affilliation
Fundação Oswaldo Cruz. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Rio de Janeiro, RJ, Brasil.
GSK. Rockville, Maryland, USA.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Rio de Janeiro, RJ, Brasil.
Instituto Evandro Chagas. MoH. Anannindeua, PA, Brasil.
Fundação Oswaldo Cruz. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Rio de Janeiro, RJ, Brasil.
GSK. Rockville, Maryland, USA.
GSK. Rockville, Maryland, USA.
GSK. Rixensart, Belgium.
GSK. Rixensart, Belgium.
GSK. Rixensart, Belgium.
Fundação Oswaldo Cruz. Rio de Janeiro, RJ, Brasil.
GSK. Rixensart, Belgium.
Fundação Oswaldo Cruz. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Rio de Janeiro, RJ, Brasil.
GSK. Rockville, Maryland, USA.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Rio de Janeiro, RJ, Brasil.
Instituto Evandro Chagas. MoH. Anannindeua, PA, Brasil.
Fundação Oswaldo Cruz. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Rio de Janeiro, RJ, Brasil.
GSK. Rockville, Maryland, USA.
GSK. Rockville, Maryland, USA.
GSK. Rixensart, Belgium.
GSK. Rixensart, Belgium.
GSK. Rixensart, Belgium.
Fundação Oswaldo Cruz. Rio de Janeiro, RJ, Brasil.
GSK. Rixensart, Belgium.
Abstract
The macaque is widely accepted as a suitable model for preclinical characterization of dengue vaccine candidates. However, the only vaccine for which both preclinical and clinical efficacy results were reported so far showed efficacy levels that were substantially different between macaques and humans. We hypothesized that this model's predictive capacity may be improved using recent and minimally passaged dengue virus isolates, and by assessing vaccine efficacy by characterizing not only the post-dengue virus challenge viremia/RNAemia but also the associated-cytokine profile. Ten recent and minimally passaged Brazilian clinical isolates from the four dengue virus serotypes were tested for their infectivity in rhesus macaques. For the strains showing robust replication capacity, the associated-changes in soluble mediator levels, and the elicited dengue virus-neutralizing antibody responses, were also characterized. Three isolates from dengue virus serotypes 1, 2 and 4 induced viremia of high magnitude and longer duration relative to previously reported viremia kinetics in this model, and robust dengue virus-neutralizing antibody responses. Consistent with observations in humans, increased MCP-1, IFN-γ and VEGF-A levels, and transiently decreased IL-8 levels were detected after infection with the selected isolates. These results may contribute to establishing a dengue macaque model showing a higher predictability for vaccine efficacy in humans.
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