Publication: Dengue virus - Induced hemorrhage in a nonhuman primate model
Issued Date
2010-03-04
Resource Type
ISSN
15280020
00064971
00064971
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2-s2.0-77950346597
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Mahidol University
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SCOPUS
Bibliographic Citation
Blood. Vol.115, No.9 (2010), 1823-1834
Suggested Citation
Nattawat Onlamoon, Sansanee Noisakran, Hui Mien Hsiao, Alexander Duncan, Francois Villinger, Aftab A. Ansari, Guey Chuen Perng Dengue virus - Induced hemorrhage in a nonhuman primate model. Blood. Vol.115, No.9 (2010), 1823-1834. doi:10.1182/blood-2009-09-242990 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/28764
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Title
Dengue virus - Induced hemorrhage in a nonhuman primate model
Abstract
Lack of a dengue hemorrhagic animal model recapitulating human dengue virus infection has been a significant impediment in advancing our understanding of the early events involved in the pathogenesis of dengue disease. In efforts to address this issue, a group of rhesus macaques were intravenously infected with dengue virus serotype 2 (strain 16 681) at 1 × 107 PFU/animal. A classic dengue hemorrhage developed 3 to 5 days after infection in 6 of 6 animals. Blood chemistry appeared to be normal with exception of creatine phosphokinase, which peaked at 7 days after infection. A modest thrombocytopenia and noticeable neutropenia concomitant with slight decrease of hemoglobin and hematocrit were registered. In addition, the concentration of D-dimer was elevated significantly. Viremia peaked at 3 to 5 days after infection followed by an inverse relationship between T and B lymphocytes and a bimodal pattern for platelet-monocytes and platelet-neutrophil aggregates. Dengue virus containing platelets engulfed by monocytes was noted at 8 or 9 days after infection. Thus, rhesus macaques inoculated intravenously with a high dose of dengue virus produced dengue hemorrhage, which may provide a unique platform to define the early events in dengue virus infection and help identify which blood components contribute to the pathogenesis of dengue disease. © 2010 by The American Society of Hematology.