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Title: Experimental evaluation of the zoonotic infection potency of simian retrovirus type 4 using humanized mouse model.
Authors: Sato, Kei
Kobayashi, Tomoko
Misawa, Naoko
Yoshikawa, Rokusuke
Takeuchi, Junko S.
Miura, Tomoyuki  kyouindb  KAKEN_id
Okamoto, Munehiro
Yasunaga, Jun-ichirou
Matsuoka, Masao
Ito, Mamoru
Miyazawa, Takayuki  kyouindb  KAKEN_id
Koyanagi, Yoshio  kyouindb  KAKEN_id
Author's alias: 佐藤, 佳
松岡, 雅雄
Issue Date: 14-Sep-2015
Publisher: Nature Publishing Group
Journal title: Scientific reports
Volume: 5
Thesis number: 14040
Abstract: During 2001-2002 and 2008-2011, two epidemic outbreaks of infectious hemorrhagic disease have been found in Japanese macaques (Macaca fuscata) in Kyoto University Primate Research Institute, Japan. Following investigations revealed that the causative agent was simian retrovirus type 4 (SRV-4). SRV-4 was isolated by using human cell lines, which indicates that human cells are potently susceptible to SRV-4 infection. These raise a possibility of zoonotic infection of pathogenic SRV-4 from Japanese macaques into humans. To explore the possibility of zoonotic infection of SRV-4 to humans, here we use a human hematopoietic stem cell-transplanted humanized mouse model. Eight out of the twelve SRV-4-inoculated humanized mice were infected with SRV-4. Importantly, 3 out of the 8 infected mice exhibited anemia and hemophagocytosis, and an infected mouse died. To address the possibility that SRV-4 adapts humanized mouse and acquires higher pathogenicity, the virus was isolated from an infected mice exhibited severe anemia was further inoculated into another 6 humanized mice. However, no infected mice exhibited any illness. Taken together, our findings demonstrate that the zoonotic SRV-4 infection from Japanese macaques to humans is technically possible under experimental condition. However, such zoonotic infection may not occur in the real society.
Rights: This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit
DOI(Published Version): 10.1038/srep14040
PubMed ID: 26364986
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