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Kobayashi D, Kai I, Faizah AN, Moi ML, Tajima S, Takasaki T, Sasaki T, Isawa H. Comparative analysis of the susceptibility of Aedes aegypti and Japanese Aedes albopictus to all dengue virus serotypes. Trop Med Health 2023; 51:61. [PMID: 37919794 PMCID: PMC10621184 DOI: 10.1186/s41182-023-00553-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 10/22/2023] [Indexed: 11/04/2023] Open
Abstract
BACKGROUND Dengue fever, caused by the dengue virus (DENV), is the most common viral infection transmitted by Aedes mosquitoes (mainly Ae. aegypti and Ae. albopictus) worldwide. Aedes aegypti is not currently established in Japan, and Ae. albopictus is the primary vector mosquito for DENV in the country, but knowledge of its viral susceptibility is limited. Therefore, we aimed to clarify the status of DENV susceptibility by comparing the infection and dissemination dynamics of Japanese Ae. albopictus to all known DENV serotypes with those of Ae. aegypti. METHODS After propagation of each DENV serotype in Vero cells, the culture supernatants were mixed with defibrinated rabbit blood and adenosine triphosphate, and the mixture was artificially blood-sucked by two colonies of Ae. albopictus from Japan and one colony of Ae. aegypti from a dengue-endemic country (Vietnam). After 14 days of sucking, the mosquito body was divided into two parts (thorax/abdomen and head/wings/legs) and total RNA was extracted from each sample. DENV RNA was detected in these extracted RNA samples using a quantitative RT-PCR method specific for each DENV serotype, and infection and dissemination rates were analyzed. RESULTS The Japanese Ae. albopictus colonies were susceptible to all DENV serotypes. Its infection and dissemination rates were significantly lower than those of Ae. aegypti. However, the number of DENV RNA copies in Ae. albopictus was almost not significantly different from that in Ae. aegypti. Furthermore, Japanese Ae. albopictus differed widely in their susceptibility to each DENV serotype. CONCLUSIONS In Japanese Ae. albopictus, once DENV overcame the midgut infection barrier, the efficiency of subsequent propagation and dissemination of the virus in the mosquito body was comparable to that of Ae. aegypti. Based on the results of this study and previous dengue outbreak trends, Ae. albopictus is predicted to be highly compatible with DENV-1, suggesting that this serotype poses a high risk for future epidemics in Japan.
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Affiliation(s)
- Daisuke Kobayashi
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo, Japan.
- Management Department of Biosafety, Laboratory Animal, and Pathogen Bank, National Institute of Infectious Diseases, Tokyo, Japan.
| | - Izumi Kai
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo, Japan
- Graduate School of Agriculture, Meiji University, Kanagawa, Japan
| | - Astri Nur Faizah
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Meng Ling Moi
- Department of Virology I, National Institute of Infectious Diseases, Tokyo, Japan
- Department of Developmental Medical Sciences, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Shigeru Tajima
- Department of Virology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Tomohiko Takasaki
- Department of Virology I, National Institute of Infectious Diseases, Tokyo, Japan
- BML, Inc., Tokyo, Japan
| | - Toshinori Sasaki
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Haruhiko Isawa
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo, Japan
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Kawakami E, Saiki N, Yoneyama Y, Moriya C, Maezawa M, Kawamura S, Kinebuchi A, Kono T, Funata M, Sakoda A, Kondo S, Ebihara T, Matsumoto H, Togami Y, Ogura H, Sugihara F, Okuzaki D, Kojima T, Deguchi S, Vallee S, McQuade S, Islam R, Natarajan M, Ishigaki H, Nakayama M, Nguyen CT, Kitagawa Y, Wu Y, Mori K, Hishiki T, Takasaki T, Itoh Y, Takayama K, Nio Y, Takebe T. Complement factor D targeting protects endotheliopathy in organoid and monkey models of COVID-19. Cell Stem Cell 2023; 30:1315-1330.e10. [PMID: 37802037 PMCID: PMC10575686 DOI: 10.1016/j.stem.2023.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 07/04/2023] [Accepted: 09/01/2023] [Indexed: 10/08/2023]
Abstract
COVID-19 is linked to endotheliopathy and coagulopathy, which can result in multi-organ failure. The mechanisms causing endothelial damage due to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) remain elusive. Here, we developed an infection-competent human vascular organoid from pluripotent stem cells for modeling endotheliopathy. Longitudinal serum proteome analysis identified aberrant complement signature in critically ill patients driven by the amplification cycle regulated by complement factor B and D (CFD). This deviant complement pattern initiates endothelial damage, neutrophil activation, and thrombosis specific to organoid-derived human blood vessels, as verified through intravital imaging. We examined a new long-acting, pH-sensitive (acid-switched) antibody targeting CFD. In both human and macaque COVID-19 models, this long-acting anti-CFD monoclonal antibody mitigated abnormal complement activation, protected endothelial cells, and curtailed the innate immune response post-viral exposure. Collectively, our findings suggest that the complement alternative pathway exacerbates endothelial injury and inflammation. This underscores the potential of CFD-targeted therapeutics against severe viral-induced inflammathrombotic outcomes.
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Affiliation(s)
- Eri Kawakami
- T-CiRA Discovery & Innovation, Takeda Pharmaceutical Company Ltd, 2-26-1, Muraoka-higashi, Fujisawa, Kanagawa 251-8555, Japan; Organoid Medicine Project, T-CiRA Joint Program, 2-26-1, Muraoka-higashi, Fujisawa, Kanagawa 251-8555, Japan
| | - Norikazu Saiki
- Institute of Research, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8510, Japan; Organoid Medicine Project, T-CiRA Joint Program, 2-26-1, Muraoka-higashi, Fujisawa, Kanagawa 251-8555, Japan
| | - Yosuke Yoneyama
- Institute of Research, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8510, Japan
| | - Chiharu Moriya
- Institute of Research, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8510, Japan
| | - Mari Maezawa
- Institute of Research, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8510, Japan
| | - Shuntaro Kawamura
- Institute of Research, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8510, Japan
| | - Akiko Kinebuchi
- Institute of Research, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8510, Japan
| | - Tamaki Kono
- T-CiRA Discovery & Innovation, Takeda Pharmaceutical Company Ltd, 2-26-1, Muraoka-higashi, Fujisawa, Kanagawa 251-8555, Japan; Organoid Medicine Project, T-CiRA Joint Program, 2-26-1, Muraoka-higashi, Fujisawa, Kanagawa 251-8555, Japan
| | - Masaaki Funata
- T-CiRA Discovery & Innovation, Takeda Pharmaceutical Company Ltd, 2-26-1, Muraoka-higashi, Fujisawa, Kanagawa 251-8555, Japan; Organoid Medicine Project, T-CiRA Joint Program, 2-26-1, Muraoka-higashi, Fujisawa, Kanagawa 251-8555, Japan
| | - Ayaka Sakoda
- T-CiRA Discovery & Innovation, Takeda Pharmaceutical Company Ltd, 2-26-1, Muraoka-higashi, Fujisawa, Kanagawa 251-8555, Japan
| | - Shigeru Kondo
- T-CiRA Discovery & Innovation, Takeda Pharmaceutical Company Ltd, 2-26-1, Muraoka-higashi, Fujisawa, Kanagawa 251-8555, Japan
| | - Takeshi Ebihara
- Department of Traumatology and Acute Critical Medicine, Osaka University Graduate School of Medicine, 2-15, Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Hisatake Matsumoto
- Department of Traumatology and Acute Critical Medicine, Osaka University Graduate School of Medicine, 2-15, Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Yuki Togami
- Department of Traumatology and Acute Critical Medicine, Osaka University Graduate School of Medicine, 2-15, Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Hiroshi Ogura
- Department of Traumatology and Acute Critical Medicine, Osaka University Graduate School of Medicine, 2-15, Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Fuminori Sugihara
- Core Instrumentation Facility, Immunology Frontier Research Center and Research Institute for Microbial Diseases, Osaka University, 3-3-1, Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Daisuke Okuzaki
- Genome Information Research Center, Research Institute for Microbial Disease, Osaka University, 3-1 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Takashi Kojima
- Department of Traumatology and Acute Critical Medicine, Osaka University Graduate School of Medicine, 2-15, Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Sayaka Deguchi
- Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto 606-8507, Japan
| | - Sebastien Vallee
- Rare Disease DDU, Takeda Pharmaceutical Company Ltd, 125 Binney Street, Cambridge, MA 02139, USA
| | - Susan McQuade
- Rare Disease DDU, Takeda Pharmaceutical Company Ltd, 125 Binney Street, Cambridge, MA 02139, USA; BPS Biosciences Inc., 6405 Mira Mesa Blvd. Suite 100, San Diego, CA 92121, USA
| | - Rizwana Islam
- Rare Disease DDU, Takeda Pharmaceutical Company Ltd, 125 Binney Street, Cambridge, MA 02139, USA
| | - Madhusudan Natarajan
- Rare Disease DDU, Takeda Pharmaceutical Company Ltd, 125 Binney Street, Cambridge, MA 02139, USA
| | - Hirohito Ishigaki
- Department of Pathology, Shiga University of Medical Science, Setatsukinowa, Otsu, Shiga 520-2192, Japan
| | - Misako Nakayama
- Department of Pathology, Shiga University of Medical Science, Setatsukinowa, Otsu, Shiga 520-2192, Japan
| | - Cong Thanh Nguyen
- Department of Pathology, Shiga University of Medical Science, Setatsukinowa, Otsu, Shiga 520-2192, Japan
| | - Yoshinori Kitagawa
- Department of Pathology, Shiga University of Medical Science, Setatsukinowa, Otsu, Shiga 520-2192, Japan
| | - Yunheng Wu
- Graduate School of Informatics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
| | - Kensaku Mori
- Graduate School of Informatics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan; Information Technology Center, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan; Research Center for Medical Bigdata, National Institute of Informatics, Tokyo 100-0003, Japan
| | - Takayuki Hishiki
- Kanagawa Prefectural Institute of Public Health, 1-3-1, Shimomachiya, Chigasaki, Kanagawa 253-0087, Japan; Research Center for Drug and Vaccine Development, National Institute of Infectious Diseases, 1-23-1, Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Tomohiko Takasaki
- Kanagawa Prefectural Institute of Public Health, 1-3-1, Shimomachiya, Chigasaki, Kanagawa 253-0087, Japan; Advanced Technology and Development Division, BML, INC, 1361-1, Matoba, Kawagoe-shi, Saitama 350-1101, Japan
| | - Yasushi Itoh
- Department of Pathology, Shiga University of Medical Science, Setatsukinowa, Otsu, Shiga 520-2192, Japan
| | - Kazuo Takayama
- Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto 606-8507, Japan
| | - Yasunori Nio
- T-CiRA Discovery & Innovation, Takeda Pharmaceutical Company Ltd, 2-26-1, Muraoka-higashi, Fujisawa, Kanagawa 251-8555, Japan; Organoid Medicine Project, T-CiRA Joint Program, 2-26-1, Muraoka-higashi, Fujisawa, Kanagawa 251-8555, Japan.
| | - Takanori Takebe
- Institute of Research, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8510, Japan; Organoid Medicine Project, T-CiRA Joint Program, 2-26-1, Muraoka-higashi, Fujisawa, Kanagawa 251-8555, Japan; Division of Gastroenterology, Hepatology and Nutrition & Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH 45229-3039, USA; The Center for Stem Cell and Organoid Medicine (CuSTOM), Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH 45229-3039, USA; Department of Pediatrics, University of Cincinnati College of Medicine, 3333 Burnet Avenue, Cincinnati, OH 45229-3039, USA; Communication Design Center, Advanced Medical Research Center, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan; Premium Research Institute for Human Metaverse Medicine (WPI-PRIMe) and Department of Genome Biology, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan.
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Saito K, Shimasaki K, Fukasawa M, Suzuki R, Okemoto-Nakamura Y, Katoh K, Takasaki T, Hanada K. Establishment of Vero cell lines persistently harboring a yellow fever virus 17D subgenomic replicon. Virus Res 2022; 322:198935. [PMID: 36152929 DOI: 10.1016/j.virusres.2022.198935] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 09/18/2022] [Accepted: 09/20/2022] [Indexed: 12/24/2022]
Abstract
Yellow fever virus (YFV), a member of the genus Flavivirus, family Flaviviridae, is the etiological agent for an acute viral hemorrhagic disease, yellow fever. Although effective live attenuated vaccines based on the strain YFV 17D are currently available, no specific antiviral drug is available, and the disease remains a major public health concern. Hence, the discovery and development of antiviral drugs should lead to great benefits in controlling the disease. To provide a screening platform for antiviral agents targeting YFV RNA translation/replication, we have established and characterized two Vero cell lines that persistently harbor a subgenomic replicon derived from YFV 17D-204 (referred to as replicon cells). The replicon carries YFV nucleotides (1 - 176 and 2382-10,862) and a green fluorescent protein (GFP)-Zeocin resistance fusion gene as a selection marker and indicator of persistent replication. Immunofluorescence analysis revealed that both replicon cells and YFV 17D-infected cells showed similar distribution patterns of viral NS4B protein and replication intermediate, double-stranded RNA. Sequencing analysis of persistent replicons from the two replicon cell lines suggested that their nucleotide sequences did not vary greatly following multiple passages. We examined the effect of five agents, the antiviral cytokines interferon-β and -γ, the nucleoside analog ribavirin, the squalene synthase inhibitor zaragozic acid A, and the antibiotic rifapentine, a recently reported entry and replication inhibitor against YFV, on the persistent replication in the two replicon cell lines. These agents were selected because they inhibited both production of YFV 17D and transient replication of a luciferase-expressing replicon in Vero cells, without greatly affecting cell viability. We found that each of the agents decreased GFP fluorescence in the replicon cells, albeit to varying degrees. The agents other than rifapentine also showed a decrease in viral RNA levels in the replicon cells comparable to that seen for GFP fluorescence. These results indicate that persistent replication is susceptible to each of these five agents, although their mechanisms of action may differ. Taken together, these results provide evidence that translation/replication of the replicon in the replicon cells mimics that of the viral genome upon YFV 17D infection, indicating that the replicon cell lines can serve as a useful tool for high-throughput antiviral drug screening.
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Affiliation(s)
- Kyoko Saito
- Department of Biochemistry and Cell Biology, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan.
| | - Kentaro Shimasaki
- Department of Biochemistry and Cell Biology, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - Masayoshi Fukasawa
- Department of Biochemistry and Cell Biology, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - Ryosuke Suzuki
- Department of Virology II, National Institute of Infectious Diseases, Musashimurayama-shi, Tokyo, Japan
| | - Yuko Okemoto-Nakamura
- Department of Biochemistry and Cell Biology, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - Kaoru Katoh
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba-shi, Ibaragi, Japan; AIRC, National Institute of Advanced Industrial Science and Technology (AIST), Koto-ku, Tokyo, Japan
| | - Tomohiko Takasaki
- Kanagawa Prefectural Institute of Public Health, Chigasaki-shi, Kanagawa, Japan
| | - Kentaro Hanada
- Department of Biochemistry and Cell Biology, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan; Department of Quality Assurance, Radiation Safety, and Information System, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
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Matsui K, Yamaya M, Takase M, Morita K, Tajima S, Lim CK, Saijo M, Daibata M, Nagayasu S, Takasaki T. Isolation of genotypes 1 and 3 of Japanese Encephalitis Virus in Kochi, Japan. Jpn J Infect Dis 2022; 76:151-154. [PMID: 36450570 DOI: 10.7883/yoken.jjid.2020.941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
Japanese encephalitis virus (JEV) is a mosquito-borne virus belonging to the JEV serocomplex within the genus Flavivirus, family Flaviviridae. It has 5 genotypes, G1-G5, based on the envelope (E) protein nucleotide sequence. JEV G3 circulated in Japan until the early 1990s when it was replaced by G1. JEV G3 was isolated from swine serum samples (sw/Kochi/1/2004) in the Kochi Prefecture, western Japan, in 2004. In addition, the 2018 isolates from pigs and cows (sw/Kochi/492/2018 and bo/Kochi/211/2018) in the same prefecture were identified as G3. The nucleotide sequencing results of the sw/Kochi/492/2018 and bo/Kochi/211/2018 polyprotein region differed from those of the sw/Kochi/1/2004 strain described in our previous report. Seven JEV isolates were identified as G1 in the same geographical area as that in this study. This result indicates that both JEV G1 and G3 are present in the Kochi area.
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Affiliation(s)
- Kiyohiko Matsui
- Department of Medical Technology, School of Life and Environmental Science, Azabu University, Japan
| | - Miyuki Yamaya
- Department of Clinical Laboratory Science and Technology, Nitobe Bunka College, Japan
| | - Mina Takase
- Department of Clinical Laboratory Science and Technology, Nitobe Bunka College, Japan
| | - Koichi Morita
- Department of Virology, Institute of Tropical Medicine, Nagasaki University, Japan
| | - Shigeru Tajima
- Department of Virology I, National Institute of Infectious Diseases, Japan
| | - Chang-Kweng Lim
- Department of Virology I, National Institute of Infectious Diseases, Japan
| | - Masayuki Saijo
- Department of Virology I, National Institute of Infectious Diseases, Japan
| | - Masanori Daibata
- Department of Microbiology and Infection, Kochi Medical School, Kochi University, Japan
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Watanabe Y, Suzuki Y, Emi A, Murakawa T, Hishiki T, Kato F, Sakaguchi S, Wu H, Yano T, Lim CK, Takasaki T, Nakano T. Identification of the corticotropin-releasing factor receptor 1 antagonists as inhibitors of Chikungunya virus replication using a Gaussia luciferase–expressing subgenomic replicon. Biochem Biophys Res Commun 2022; 637:181-188. [DOI: 10.1016/j.bbrc.2022.11.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 11/07/2022] [Indexed: 11/11/2022]
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Ohishi T, Hishiki T, Baig MS, Rajpoot S, Saqib U, Takasaki T, Hara Y. Epigallocatechin gallate (EGCG) attenuates severe acute respiratory coronavirus disease 2 (SARS-CoV-2) infection by blocking the interaction of SARS-CoV-2 spike protein receptor-binding domain to human angiotensin-converting enzyme 2. PLoS One 2022; 17:e0271112. [PMID: 35830431 PMCID: PMC9278780 DOI: 10.1371/journal.pone.0271112] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Accepted: 06/23/2022] [Indexed: 11/18/2022] Open
Abstract
The outbreak of the coronavirus disease 2019 caused by the severe acute respiratory syndrome coronavirus 2 triggered a global pandemic where control is needed through therapeutic and preventive interventions. This study aims to identify natural compounds that could affect the fusion between the viral membrane (receptor-binding domain of the severe acute respiratory syndrome coronavirus 2 spike protein) and the human cell receptor angiotensin-converting enzyme 2. Accordingly, we performed the enzyme-linked immunosorbent assay-based screening of 10 phytochemicals that already showed numerous positive effects on human health in several epidemiological studies and clinical trials. Among these phytochemicals, epigallocatechin gallate, a polyphenol and a major component of green tea, could effectively inhibit the interaction between the receptor-binding domain of the severe acute respiratory syndrome coronavirus 2 spike protein and the human cell receptor angiotensin-converting enzyme 2. Alternately, in silico molecular docking studies of epigallocatechin gallate and angiotensin-converting enzyme 2 indicated a binding score of −7.8 kcal/mol and identified a hydrogen bond between R393 and angiotensin-converting enzyme 2, which is considered as a key interacting residue involved in binding with the severe acute respiratory syndrome coronavirus 2 spike protein receptor-binding domain, suggesting the possible blocking of interaction between receptor-binding domain and angiotensin-converting enzyme 2. Furthermore, epigallocatechin gallate could attenuate severe acute respiratory syndrome coronavirus 2 infection and replication in Caco-2 cells. These results shed insight into identification and validation of severe acute respiratory syndrome coronavirus 2 entry inhibitors.
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Affiliation(s)
- Tomokazu Ohishi
- Institute of Microbial Chemistry (BIKAKEN), Numazu, Microbial Chemistry Research Foundation, Numazu-shi, Shizuoka, Japan
- * E-mail:
| | - Takayuki Hishiki
- Kanagawa Prefectural Institute of Public Health, Chigasaki, Kanagawa, Japan
| | - Mirza S. Baig
- Department of Biosciences and Biomedical Engineering (BSBE), Indian Institute of Technology (IIT), Simrol, Indore, India
| | - Sajjan Rajpoot
- Department of Biosciences and Biomedical Engineering (BSBE), Indian Institute of Technology (IIT), Simrol, Indore, India
| | - Uzma Saqib
- Department of Chemistry, Indian Institute of Technology (IIT), Simrol, Indore, India
| | - Tomohiko Takasaki
- Kanagawa Prefectural Institute of Public Health, Chigasaki, Kanagawa, Japan
| | - Yukihiko Hara
- Tea Solutions, Hara Office Inc., Sumida-ku, Tokyo, Japan
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Sano E, Suzuki T, Hashimoto R, Itoh Y, Sakamoto A, Sakai Y, Saito A, Okuzaki D, Motooka D, Muramoto Y, Noda T, Takasaki T, Sakuragi JI, Minami S, Kobayashi T, Yamamoto T, Matsumura Y, Nagao M, Okamoto T, Takayama K. Cell response analysis in SARS-CoV-2 infected bronchial organoids. Commun Biol 2022; 5:516. [PMID: 35637255 PMCID: PMC9151746 DOI: 10.1038/s42003-022-03499-2] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 05/18/2022] [Indexed: 12/13/2022] Open
Abstract
The development of an in vitro cell model that can be used to study severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) research is expected. Here we conducted infection experiments in bronchial organoids (BO) and an BO-derived air-liquid interface model (BO-ALI) using 8 SARS-CoV-2 variants. The infection efficiency in BO-ALI was more than 1,000 times higher than that in BO. Among the bronchial epithelial cells, we found that ciliated cells were infected with the virus, but basal cells were not. Ciliated cells died 7 days after the viral infection, but basal cells survived after the viral infection and differentiated into ciliated cells. Fibroblast growth factor 10 signaling was essential for this differentiation. These results indicate that BO and BO-ALI may be used not only to evaluate the cell response to SARS-CoV-2 and coronavirus disease 2019 (COVID-19) therapeutic agents, but also for airway regeneration studies.
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Affiliation(s)
- Emi Sano
- Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, 606-8507, Japan
| | - Tatsuya Suzuki
- Institute for Advanced Co-Creation Studies, Research Institute for Microbial Diseases, Osaka University, Suita, 565-0871, Japan
| | - Rina Hashimoto
- Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, 606-8507, Japan
| | - Yumi Itoh
- Institute for Advanced Co-Creation Studies, Research Institute for Microbial Diseases, Osaka University, Suita, 565-0871, Japan
| | - Ayaka Sakamoto
- Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, 606-8507, Japan
| | - Yusuke Sakai
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, 753-8511, Japan
| | - Akatsuki Saito
- Department of Veterinary Science, Faculty of Agriculture, University of Miyazaki, Miyazaki, 889-2192, Japan
| | - Daisuke Okuzaki
- Genome Information Research Center, Research Institute for Microbial Diseases, Osaka University, Suita, 565-0871, Japan
- Single Cell Genomics, Human Immunology, WPI Immunology Frontier Research Center, Osaka University, Suita, 565-0871, Japan
- Institute for Open and Transdisciplinary Research Initiatives, Osaka University, Suita, 565-0871, Japan
| | - Daisuke Motooka
- Genome Information Research Center, Research Institute for Microbial Diseases, Osaka University, Suita, 565-0871, Japan
| | - Yukiko Muramoto
- Laboratory of Ultrastructural Virology, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, 606-8507, Japan
| | - Takeshi Noda
- Laboratory of Ultrastructural Virology, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, 606-8507, Japan
| | - Tomohiko Takasaki
- Kanagawa Prefectural Institute of Public Health, Chigasaki, Kanagawa, 253-0087, Japan
| | - Jun-Ichi Sakuragi
- Kanagawa Prefectural Institute of Public Health, Chigasaki, Kanagawa, 253-0087, Japan
| | - Shohei Minami
- Laboratory of Viral Replication, International Research Center for Infectious Diseases, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Takeshi Kobayashi
- Laboratory of Viral Replication, International Research Center for Infectious Diseases, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Takuya Yamamoto
- Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, 606-8507, Japan
- Institute for the Advanced Study of Human Biology (WPI-ASHBi), Kyoto University, Kyoto, 606-8501, Japan
- Medical-risk Avoidance based on iPS Cells Team, RIKEN Center for Advanced Intelligence Project (AIP), Kyoto, 606-8507, Japan
- AMED-CREST, Japan Agency for Medical Research and Development (AMED), Tokyo, 100-0004, Japan
| | - Yasufumi Matsumura
- Department of Clinical Laboratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, 606-8303, Japan
| | - Miki Nagao
- Department of Clinical Laboratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, 606-8303, Japan
| | - Toru Okamoto
- Institute for Advanced Co-Creation Studies, Research Institute for Microbial Diseases, Osaka University, Suita, 565-0871, Japan.
| | - Kazuo Takayama
- Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, 606-8507, Japan.
- AMED-CREST, Japan Agency for Medical Research and Development (AMED), Tokyo, 100-0004, Japan.
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Hishiki T, Usui K, An T, Suzuki R, Sakuragi JI, Tanaka Y, Matsuki Y, Kawai J, Kogo Y, Hayashizaki Y, Takasaki T. Isolation of SARS-CoV-2 from COVID-19 patients and an asymptomatic individual. Jpn J Infect Dis 2021; 75:277-280. [PMID: 34719530 DOI: 10.7883/yoken.jjid.2021.292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) emerged in Wuhan, China, in December 2019. Despite the recent introduction of vaccines against SARS-CoV-2, more effective vaccines and antiviral drugs must be developed. Here, we isolated five SARS-CoV-2 strains from four patients with coronavirus disease (COVID-19) and an asymptomatic individual using pharyngeal swabs, nasopharyngeal swabs, and sputum samples. Cytopathic effects in inoculated Vero cells were observed between days 3 and 7. SARS-CoV-2 infection was confirmed by quantitative reverse-transcription polymerase chain reaction (RT-qPCR) and next-generation sequencing. Phylogenetic analyses of the whole genome sequences showed that the virus isolates from the clinical samples were belonged to the Wuhan and European lineages. These findings and isolated viruses may contribute to the development of diagnostic tools, vaccines, and antiviral drugs for COVID-19.
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Affiliation(s)
- Takayuki Hishiki
- Department of Microbiology, Kanagawa Prefectural Institute of Public Health, Japan
| | - Kengo Usui
- RIKEN Center for Integrative Medical Science, Japan
| | - Tadaichi An
- RIKEN Center for Integrative Medical Science, Japan
| | - Rieko Suzuki
- Department of Microbiology, Kanagawa Prefectural Institute of Public Health, Japan
| | - Jun-Ichi Sakuragi
- Department of Microbiology, Kanagawa Prefectural Institute of Public Health, Japan
| | - Yuki Tanaka
- RIKEN Center for Integrative Medical Science, Japan
| | - Yu Matsuki
- RIKEN Center for Integrative Medical Science, Japan
| | - Jun Kawai
- RIKEN Preventive Medicine and Diagnosis Innovation Program, Japan
| | - Yasushi Kogo
- RIKEN Preventive Medicine and Diagnosis Innovation Program, Japan
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9
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Sasaki T, Moi ML, Saito K, Isawa H, Takasaki T, Sawabe K. Aedes albopictus Strain and Dengue Virus Serotype in the Dengue Fever Outbreaks in Japan: Implications of Wolbachia Infection. Jpn J Infect Dis 2021; 75:140-143. [PMID: 34470970 DOI: 10.7883/yoken.jjid.2021.376] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
From August 27 to October 15, 2014, a dengue fever outbreak with 158 autochthonous cases occurred after nearly 70 years of no reports of autochthonous cases in Japan. The most competent mosquito vector for dengue virus (DENV) transmission in Japan is Aedes albopictus. Since A. albopictus is widely distributed throughout Japan, we examined the susceptibility of this species to infection by DENV and the relationship of the endosymbiont Wolbachia (wAlbA and wAlbB) with susceptibility to DENV. The A. albopictus YYG strain, collected from Yoyogi Park in 2014, the epicenter of the dengue fever outbreak, was found to have lower susceptibility to DENV 1 and 3 than that of indigenous Japanese strains A. albopictus EBN 201808 (F1 from the field) and A. albopictus ISG 201603. Further, the A. albopictus EBN 201808 strain showed a same susceptibility to DENV3 as A. albopictus ISG 201603tet strain (Wolbachia-free). Susceptibility to DENV3 was not related to Wolbachia strains wAlbA or wAlbB in the A. albopictus ISG 201603 strain.
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Affiliation(s)
- Toshinori Sasaki
- Department of Medical Entomology, National Institute of Infectious Diseases, Japan
| | - Meng Ling Moi
- Department of Virology I, National Institute of Infectious Diseases, Japan
| | - Kazumi Saito
- Department of Medical Entomology, National Institute of Infectious Diseases, Japan
| | - Haruhiko Isawa
- Department of Medical Entomology, National Institute of Infectious Diseases, Japan
| | - Tomohiko Takasaki
- Department of Virology I, National Institute of Infectious Diseases, Japan
| | - Kyoko Sawabe
- Department of Medical Entomology, National Institute of Infectious Diseases, Japan
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10
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Azami NAM, Moi ML, Salleh SA, Neoh HM, Kamaruddin MA, Jalal NA, Ismail N, Takasaki T, Kurane I, Jamal R. Dengue epidemic in Malaysia: urban versus rural comparison of dengue immunoglobulin G seroprevalence among Malaysian adults aged 35-74 years. Trans R Soc Trop Med Hyg 2021; 114:798-811. [PMID: 32735681 DOI: 10.1093/trstmh/traa056] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 06/15/2020] [Accepted: 07/02/2020] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND A periodic serosurvey of dengue seroprevalence is vital to determine the prevalence of dengue in countries where this disease is endemic. This study aimed to determine the prevalence of dengue immunoglobulin G (IgG) seropositivity among healthy Malaysian adults living in urban and rural areas. METHODS A total of 2598 serum samples (1417 urban samples, 1181 rural samples) were randomly collected from adults ages 35-74 y. The presence of the dengue IgG antibody and neutralising antibodies to dengue virus (DENV) 1-4 was determined using enzyme-linked immunosorbent assay and the plaque reduction neutralisation test assay, respectively. RESULTS The prevalence of dengue IgG seropositivity was 85.39% in urban areas and 83.48% in rural areas. The seropositivity increased with every 10-y increase in age. Ethnicity was associated with dengue seropositivity in urban areas but not in rural areas. The factors associated with dengue seropositivity were sex and working outdoors. In dengue IgG-positive serum samples, 98.39% of the samples had neutralising antibodies against DENV3, but only 70.97% of them had neutralising antibodies against DENV4. CONCLUSION The high seroprevalence of dengue found in urban and rural areas suggests that both urban and rural communities are vital for establishing and sustaining DENV transmission in Malaysia.
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Affiliation(s)
- Nor Azila Muhammad Azami
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur, 56000, Malaysia
| | - Meng Ling Moi
- Institute of Tropical Medicine, Nagasaki University, Nagasaki, 852-8523, Japan
| | - Sharifah Azura Salleh
- Department of Medical Microbiology and Immunology, University Kebangsaan Malaysia Medical Centre, Kuala Lumpur, 56000, Malaysia
| | - Hui-Min Neoh
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur, 56000, Malaysia
| | - Mohd Arman Kamaruddin
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur, 56000, Malaysia
| | - Nazihah Abdul Jalal
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur, 56000, Malaysia
| | - Norliza Ismail
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur, 56000, Malaysia
| | - Tomohiko Takasaki
- Kanagawa Prefectural Institute of Public Health, Kanagawa, 253-0087, Japan
| | - Ichiro Kurane
- National Institute of Infectious Diseases, Tokyo, 162-8640, Japan
| | - Rahman Jamal
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur, 56000, Malaysia
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Runtuwene LR, Kawashima S, Pijoh VD, Tuda JSB, Hayashida K, Yamagishi J, Sugimoto C, Nishiyama S, Sasaki M, Orba Y, Sawa H, Takasaki T, James AA, Kobayashi T, Eshita Y. The Lethal(2)-Essential-for-Life [ L(2)EFL] Gene Family Modulates Dengue Virus Infection in Aedes aegypti. Int J Mol Sci 2020; 21:ijms21207520. [PMID: 33053895 PMCID: PMC7593908 DOI: 10.3390/ijms21207520] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 10/01/2020] [Accepted: 10/08/2020] [Indexed: 12/25/2022] Open
Abstract
Efforts to determine the mosquito genes that affect dengue virus replication have identified a number of candidates that positively or negatively modify amplification in the invertebrate host. We used deep sequencing to compare the differential transcript abundances in Aedes aegypti 14 days post dengue infection to those of uninfected A. aegypti. The gene lethal(2)-essential-for-life [l(2)efl], which encodes a member of the heat shock 20 protein (HSP20) family, was upregulated following dengue virus type 2 (DENV-2) infection in vivo. The transcripts of this gene did not exhibit differential accumulation in mosquitoes exposed to insecticides or pollutants. The induction and overexpression of l(2)efl gene products using poly(I:C) resulted in decreased DENV-2 replication in the cell line. In contrast, the RNAi-mediated suppression of l(2)efl gene products resulted in enhanced DENV-2 replication, but this enhancement occurred only if multiple l(2)efl genes were suppressed. l(2)efl homologs induce the phosphorylation of eukaryotic initiation factor 2α (eIF2α) in the fruit fly Drosophila melanogaster, and we confirmed this finding in the cell line. However, the mechanism by which l(2)efl phosphorylates eIF2α remains unclear. We conclude that l(2)efl encodes a potential anti-dengue protein in the vector mosquito.
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Affiliation(s)
- Lucky R. Runtuwene
- Department of Infectious Disease Control, Faculty of Medicine, Oita University, Oita 879-5593, Japan;
- Department of Computational Biology, Graduate School of Frontier Sciences, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8562, Japan
- AIDS Research Centre, National Institute of Infectious Diseases, Tokyo 162-8640, Japan
- Correspondence: (L.R.R.); (Y.E.)
| | - Shuichi Kawashima
- Database Center for Life Science, Joint Support-Center for Data Science Research, Research Organization of Information and Systems, 178-4-4 Wakashiba, Kashiwa, Chiba 277-0871, Japan;
| | - Victor D. Pijoh
- Faculty of Medicine, Sam Ratulangi University, Kampus Unsrat, Bahu Manado 95-115, Indonesia; (V.D.P.); (J.S.B.T.)
| | - Josef S. B. Tuda
- Faculty of Medicine, Sam Ratulangi University, Kampus Unsrat, Bahu Manado 95-115, Indonesia; (V.D.P.); (J.S.B.T.)
| | - Kyoko Hayashida
- Division of Collaboration and Education, Research Center for Zoonosis Control, Hokkaido University, North 20, West 10 Kita-ku, Sapporo, Hokkaido 001-0020, Japan; (K.H.); (J.Y.); (C.S.)
| | - Junya Yamagishi
- Division of Collaboration and Education, Research Center for Zoonosis Control, Hokkaido University, North 20, West 10 Kita-ku, Sapporo, Hokkaido 001-0020, Japan; (K.H.); (J.Y.); (C.S.)
- Global Station for Zoonosis Control, GI-CoRE, Hokkaido University, North 20, West 10 Kita-ku, Sapporo, Hokkaido 001-0020, Japan
| | - Chihiro Sugimoto
- Division of Collaboration and Education, Research Center for Zoonosis Control, Hokkaido University, North 20, West 10 Kita-ku, Sapporo, Hokkaido 001-0020, Japan; (K.H.); (J.Y.); (C.S.)
| | - Shoko Nishiyama
- Laboratory of Zoonotic Diseases, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu-shi, Gifu 501-1193, Japan;
| | - Michihito Sasaki
- Division of Molecular Pathobiology, Research Center for Zoonosis Control, Hokkaido University, North 20, West 10 Kita-ku, Sapporo, Hokkaido 001-0020, Japan; (M.S.); (Y.O.); (H.S.)
| | - Yasuko Orba
- Division of Molecular Pathobiology, Research Center for Zoonosis Control, Hokkaido University, North 20, West 10 Kita-ku, Sapporo, Hokkaido 001-0020, Japan; (M.S.); (Y.O.); (H.S.)
| | - Hirofumi Sawa
- Division of Molecular Pathobiology, Research Center for Zoonosis Control, Hokkaido University, North 20, West 10 Kita-ku, Sapporo, Hokkaido 001-0020, Japan; (M.S.); (Y.O.); (H.S.)
| | - Tomohiko Takasaki
- National Institute of Infectious Diseases, Tokyo 162-8640, Japan;
- Kanagawa Prefectural Institute of Public Health, Kanagawa 253-0087, Japan
| | - Anthony A. James
- Departments of Microbiology & Molecular Genetics and Molecular Biology & Biochemistry, University of California, Irvine, CA 92697, USA;
| | - Takashi Kobayashi
- Department of Infectious Disease Control, Faculty of Medicine, Oita University, Oita 879-5593, Japan;
| | - Yuki Eshita
- Department of Infectious Disease Control, Faculty of Medicine, Oita University, Oita 879-5593, Japan;
- Departments of Medical Entomology, Faculty of Tropical Medicine, Mahidol University, 420/6 Ratchawithi Road, Rajathewi, Bangkok 10400, Thailand
- Research Institute for Microbial Diseases, Osaka University, 3-1 Yamadaoka, Suita, Osaka 565-0871, Japan
- Hokudai Center for Zoonosis Control in Zambia, Research Center for Zoonosis Control, Hokkaido University, North 20, West 10 Kita-ku, Sapporo, Hokkaido 001-0020, Japan
- Correspondence: (L.R.R.); (Y.E.)
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12
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Suzuki Y, Tanaka A, Maeda Y, Emi A, Fujioka Y, Sakaguchi S, Vasudevan SG, Kobayashi T, Lim CK, Takasaki T, Wu H, Nakano T. Construction and characterization of an infectious clone generated from Chikungunya virus SL11131 strain. Virology 2020; 552:52-62. [PMID: 33059320 DOI: 10.1016/j.virol.2020.09.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 08/08/2020] [Accepted: 09/14/2020] [Indexed: 10/23/2022]
Abstract
Chikungunya virus (CHIKV) is a mosquito-borne RNA virus that causes Chikungunya fever in humans. In this study, we generated two DNA-based CHIKV infectious clones derived from an Indian Ocean Lineage SL11131 strain and a prototype Ross strain. When the replication capabilities of the infectious CHIKV in various cell lines were evaluated, the SL11131 strain was found to replicate more efficiently than the Ross strain in Aedes albopictus C6/36 cells, whereas SL11131 underwent limited replication in a BHK-21-derivative cell line named BHK-DRV. Infection experiments using chimeric CHIKV between SL11131 and Ross revealed that these different replication activities of SL11131 in C6/36 and BHK-DRV cells were determined by structural and nonstructural genes, respectively. Therefore, the infectious clones created in this study will be a useful tool for investigating the virological features of a recent epidemic strain of CHIKV and benefit the development of effective prevention and treatment of CHIKV infection.
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Affiliation(s)
- Youichi Suzuki
- Department of Microbiology and Infection Control, Osaka Medical College, Takatsuki, Japan.
| | - Atsushi Tanaka
- Thailand-Japan Research Collaboration Center on Emerging and Re-emerging Infections, Department of Medical Sciences, Ministry of Public Health, Nonthaburi, Thailand; Laboratory of Virus-Host Coevolution, Institute for Frontier Life and Medical Sciences, Resilience Research Unit, Kyoto University, Kyoto, Japan
| | - Yusuke Maeda
- Research Institute for Microbial Diseases, Osaka University, Suita, Japan
| | - Akino Emi
- Department of Microbiology and Infection Control, Osaka Medical College, Takatsuki, Japan
| | - Yoshihiko Fujioka
- Department of Microbiology and Infection Control, Osaka Medical College, Takatsuki, Japan
| | - Shoichi Sakaguchi
- Department of Microbiology and Infection Control, Osaka Medical College, Takatsuki, Japan
| | | | - Takeshi Kobayashi
- Research Institute for Microbial Diseases, Osaka University, Suita, Japan
| | - Chang-Kweng Lim
- Department of Virology I, National Institute of Infectious Diseases, Tokyo, Japan
| | | | - Hong Wu
- Department of Microbiology and Infection Control, Osaka Medical College, Takatsuki, Japan
| | - Takashi Nakano
- Department of Microbiology and Infection Control, Osaka Medical College, Takatsuki, Japan
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13
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Supriyono, Kuwata R, Torii S, Shimoda H, Ishijima K, Yonemitsu K, Minami S, Kuroda Y, Tatemoto K, Tran NTB, Takano A, Omatsu T, Mizutani T, Itokawa K, Isawa H, Sawabe K, Takasaki T, Yuliani DM, Abiyoga D, Hadi UK, Setiyono A, Hondo E, Agungpriyono S, Maeda K. Mosquito-borne viruses, insect-specific flaviviruses (family Flaviviridae, genus Flavivirus), Banna virus (family Reoviridae, genus Seadornavirus), Bogor virus (unassigned member of family Permutotetraviridae), and alphamesoniviruses 2 and 3 (family Mesoniviridae, genus Alphamesonivirus) isolated from Indonesian mosquitoes. J Vet Med Sci 2020; 82:1030-1041. [PMID: 32448813 PMCID: PMC7399325 DOI: 10.1292/jvms.20-0261] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Mosquitoes transmit many kinds of arboviruses (arthropod-borne viruses), and numerous arboviral diseases have become serious problems in Indonesia. In this study, we conducted surveillance of mosquito-borne viruses at several sites in Indonesia during 2016-2018 for risk assessment of arbovirus infection and analysis of virus biodiversity in mosquito populations. We collected 10,015 mosquitoes comprising at least 11 species from 4 genera. Major collected mosquito species were Culex quinquefasciatus, Aedes albopictus, Culex tritaeniorhynchus, Aedes aegypti, and Armigeres subalbatus. The collected mosquitoes were divided into 285 pools and used for virus isolation using two mammalian cell lines, Vero and BHK-21, and one mosquito cell line, C6/36. Seventy-two pools showed clear cytopathic effects only in C6/36 cells. Using RT-PCR and next-generation sequencing approaches, these isolates were identified as insect flaviviruses (family Flaviviridae, genus Flavivirus), Banna virus (family Reoviridae, genus Seadornavirus), new permutotetravirus (designed as Bogor virus) (family Permutotetraviridae, genus Alphapermutotetravirus), and alphamesoniviruses 2 and 3 (family Mesoniviridae, genus Alphamesonivirus). We believed that this large surveillance of mosquitoes and mosquito-borne viruses provides basic information for the prevention and control of emerging and re-emerging arboviral diseases.
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Affiliation(s)
- Supriyono
- Laboratory of Veterinary Microbiology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan
| | - Ryusei Kuwata
- Laboratory of Veterinary Microbiology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan.,Faculty of Veterinary Medicine, Okayama University of Science, 1-3 Ikoino-oka, Imabari, Ehime 794-8555, Japan
| | - Shun Torii
- Laboratory of Veterinary Microbiology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan
| | - Hiroshi Shimoda
- Laboratory of Veterinary Microbiology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan
| | - Keita Ishijima
- Department of Veterinary Science, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Kenzo Yonemitsu
- Laboratory of Veterinary Microbiology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan
| | - Shohei Minami
- Laboratory of Veterinary Microbiology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan
| | - Yudai Kuroda
- Department of Veterinary Science, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Kango Tatemoto
- Department of Veterinary Science, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Ngo Thuy Bao Tran
- Laboratory of Veterinary Microbiology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan
| | - Ai Takano
- Laboratory of Veterinary Microbiology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan
| | - Tsutomu Omatsu
- Research and Education Center for Prevention of Global Infectious Diseases of Animals, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8508, Japan
| | - Tetsuya Mizutani
- Research and Education Center for Prevention of Global Infectious Diseases of Animals, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8508, Japan
| | - Kentaro Itokawa
- Pathogen Genomics Center, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Haruhiko Isawa
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Kyoko Sawabe
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Tomohiko Takasaki
- Kanagawa Prefectural Institute of Public Health, 1-3-1 Shimomachiya, Chigasaki, Kanagawa 253-0087, Japan
| | - Dewi Maria Yuliani
- Public Health Office of Tangerang District, Tigaraksa Subdistrict, Banten 15720, Indonesia
| | - Dimas Abiyoga
- Indonesian Research Center for Veterinary Sciences, Sesetan, Denpasar City, Bali 80223, Indonesia
| | - Upik Kesumawati Hadi
- Faculty of Veterinary Medicine, IPB University, Kampus IPB Dramaga, Bogor 16680, West Java, Indonesia
| | - Agus Setiyono
- Faculty of Veterinary Medicine, IPB University, Kampus IPB Dramaga, Bogor 16680, West Java, Indonesia
| | - Eiichi Hondo
- Department of Biological Mechanisms and Function, Graduate School of Bioagricultural Sciences, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
| | - Srihadi Agungpriyono
- Faculty of Veterinary Medicine, IPB University, Kampus IPB Dramaga, Bogor 16680, West Java, Indonesia
| | - Ken Maeda
- Laboratory of Veterinary Microbiology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan.,Department of Veterinary Science, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
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14
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Mutoh Y, Moriya A, Yasui Y, Saito N, Takasaki T, Hiramatsu S, Izuchi T, Umemura T, Ichihara T. Two Cases of Dengue Virus Type 2 (DENV-2) Infection in a Japanese Couple Returning from the Maldives during the 2018 Dengue Outbreak. Jpn J Infect Dis 2019; 73:58-60. [PMID: 31474701 DOI: 10.7883/yoken.jjid.2019.153] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Annually, more than 1.2 million travelers from other countries visit the Maldives for sightseeing, business, and honeymoon. In 2018, the largest dengue fever outbreak occurred, affecting more than 3,200 people. During this outbreak, we encountered a newly married Japanese couple returning from the Maldives on their honeymoon in October 2018, both were infected by the dengue virus type 2 during the travel. The number of imported dengue fever cases from the Maldives may increase; hence, physicians should stay up to date on dengue outbreak information worldwide.
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Affiliation(s)
| | - Akinari Moriya
- Division of Quarantine and Sanitation, Chubu Airport Branch Quarantine Office, Nagoya Quarantine Station
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15
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Suzuki K, Phadungsombat J, Nakayama EE, Saito A, Egawa A, Sato T, Rahim R, Hasan A, Lin MYC, Takasaki T, Rahman M, Shioda T. Genotype replacement of dengue virus type 3 and clade replacement of dengue virus type 2 genotype Cosmopolitan in Dhaka, Bangladesh in 2017. Infect Genet Evol 2019; 75:103977. [PMID: 31351235 DOI: 10.1016/j.meegid.2019.103977] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 06/24/2019] [Accepted: 07/22/2019] [Indexed: 01/18/2023]
Abstract
Dengue is a mosquito-borne disease that has spread to >100 countries and is caused by the dengue virus (DENV), which belongs to the Flavivirus genus of the family Flaviviridae. DENV comprises 4 serotypes (DENV-1 to -4), and each serotype is further divided into distinct genotypes. In India, it is reported that all 4 serotypes of DENV co-circulate. Although Bangladesh is a neighboring country of India, very few reports have published DENV sequence data for the country, especially after 2012. To understand the current distribution of DENV genotypes in Bangladesh, we determined the nucleotide sequences of envelope regions obtained from 58 DENV-positive patients diagnosed at Apollo Hospitals Dhaka during the period between September 2017 and February 2018. We found 5 DENV-1, 47 DENV-2, and 6 DENV-3 serotypes. A phylogenetic analysis of the obtained viral sequences revealed that DENV-3 genotype I was present instead of DENV-3 genotype II, which was predominant in Bangladesh between 2000 and 2009. Furthermore, we found two distinct lineages of the Cosmopolitan genotype of DENV-2, one of which was closely related to strains from Southeast Asia and has never been reported previously in Bangladesh. These results indicated that DENVs in Bangladesh have increased in genotypic diversity and suggest that the DENV genotypic shift observed in other Asian countries also might have been taking place in Bangladesh.
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Affiliation(s)
- Keita Suzuki
- Research Institute for Microbial Diseases, Osaka University, 3-1, Yamada-oka, Suita, Osaka 565-0871, Japan; TANAKA Kikinzoku Kogyo K.K., 2-73, Shinmachi, Hiratsuka, Kanagawa 254-0076, Japan
| | - Juthamas Phadungsombat
- Mahidol-Osaka Center for Infectious Diseases, Mahidol University, 420/6 Ratchawithi road, Ratchathewi, Bangkok 10400, Thailand
| | - Emi E Nakayama
- Research Institute for Microbial Diseases, Osaka University, 3-1, Yamada-oka, Suita, Osaka 565-0871, Japan.
| | - Akatsuki Saito
- Research Institute for Microbial Diseases, Osaka University, 3-1, Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Akio Egawa
- Research Institute for Microbial Diseases, Osaka University, 3-1, Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Tairyu Sato
- Research Institute for Microbial Diseases, Osaka University, 3-1, Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Rummana Rahim
- Apollo Hospitals Dhaka, Plot-81, Block-E, Bashundhara R/A, Dhaka 1229, Bangladesh
| | - Abu Hasan
- Apollo Hospitals Dhaka, Plot-81, Block-E, Bashundhara R/A, Dhaka 1229, Bangladesh
| | - Marco Yung-Cheng Lin
- Department of Medical Research, Mackay Memorial Hospital, No. 45, Minsheng Rd., Tamsui District, New Taipei City 25160, Taiwan
| | - Tomohiko Takasaki
- Kanagawa Prefectural Institute of Public Health, 1-3-1 Shimomachiya, Chigasaki, Kanagawa 253-0087, Japan
| | - Mizanur Rahman
- Apollo Hospitals Dhaka, Plot-81, Block-E, Bashundhara R/A, Dhaka 1229, Bangladesh
| | - Tatsuo Shioda
- Research Institute for Microbial Diseases, Osaka University, 3-1, Yamada-oka, Suita, Osaka 565-0871, Japan; Mahidol-Osaka Center for Infectious Diseases, Mahidol University, 420/6 Ratchawithi road, Ratchathewi, Bangkok 10400, Thailand
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16
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Maeki T, Tajima S, Ikeda M, Kato F, Taniguchi S, Nakayama E, Takasaki T, Lim CK, Saijo M. Analysis of cross-reactivity between flaviviruses with sera of patients with Japanese encephalitis showed the importance of neutralization tests for the diagnosis of Japanese encephalitis. J Infect Chemother 2019; 25:786-790. [PMID: 31105002 DOI: 10.1016/j.jiac.2019.04.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 01/23/2019] [Accepted: 04/09/2019] [Indexed: 12/21/2022]
Abstract
Japanese encephalitis (JE) is one of the most important viral encephalitis in Asia. JE is caused by the Japanese encephalitis virus (JEV), which belongs to the genus Flavivirus, family Flaviviridae. The diagnosis of JE is usually based on serological assays, and it has been reported that cross-reactivity between flaviviruses has complicated the interpretations of results from serological assays. Therefore, analysis of the cross-reactivity is an important subject for serological diagnosis of JE and other diseases caused by flaviviruses. In the present study, the cross-reactivity of the sera of patients with JE to other flaviviruses was analyzed using enzyme-linked immunosorbent assay (ELISA) and neutralization tests. Sixteen serum samples were collected from patients with JE and were tested for: i) IgM antibody against West Nile virus (WNV), dengue virus (DENV), zika virus (ZIKV), and tick-borne encephalitis virus (TBEV) using IgM-ELISA, ii) IgG antibody against DENV and TBEV using IgG-ELISA, and iii) neutralization tests with DENV 1-4, ZIKV, TBEV, and WNV. Out of the 16 samples tested using ELISA, 11 and 14 samples were positive for IgM and IgG, respectively, against at least one of the other flaviviruses. In neutralization tests, neutralizing potency against DENV, ZIKV, or TBEV was not detected in any samples. Although 13 samples showed neutralizing potency against WNV, their neutralizing antibody titers were equal to or less than one-eighth of those against JEV. These results show that neutralization tests are more specific than ELISA, indicating the importance of the neutralization tests in the diagnosis of JE.
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Affiliation(s)
- Takahiro Maeki
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku, Tokyo 162-8640, Japan.
| | - Shigeru Tajima
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku, Tokyo 162-8640, Japan
| | - Makiko Ikeda
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku, Tokyo 162-8640, Japan
| | - Fumihiro Kato
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku, Tokyo 162-8640, Japan
| | - Satoshi Taniguchi
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku, Tokyo 162-8640, Japan
| | - Eri Nakayama
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku, Tokyo 162-8640, Japan
| | - Tomohiko Takasaki
- Kanagawa Prefectural Institute of Public Health, 1-3-1 Shimomachiya, Chigasaki, Kanagawa 253-0087, Japan
| | - Chang-Kweng Lim
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku, Tokyo 162-8640, Japan
| | - Masayuki Saijo
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku, Tokyo 162-8640, Japan
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Fujita R, Kato F, Kobayashi D, Murota K, Takasaki T, Tajima S, Lim CK, Saijo M, Isawa H, Sawabe K. Persistent viruses in mosquito cultured cell line suppress multiplication of flaviviruses. Heliyon 2018; 4:e00736. [PMID: 30167494 PMCID: PMC6107885 DOI: 10.1016/j.heliyon.2018.e00736] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 07/25/2018] [Accepted: 08/08/2018] [Indexed: 11/16/2022] Open
Abstract
In the growth kinetics analysis of flaviviruses in Aedes albopictus C6/36 cell lines obtained from the Japanese Collection of Research Bioresources (JCRB) Cell Bank and the European Collection of Authenticated Cell Culture (ECACC), these two cells line showed different viral susceptibility for Zika virus (ZIKV), Dengue virus (DENV), and Japanese encephalitis virus (JEV). Next-generation sequencing (NGS) analysis revealed that the C6/36 JCRB strain was persistently infected with two viruses without showing any cytopathic effects. The complete sequence analysis demonstrated that the one virus was Menghai rhabdovirus (MERV), which has been found from Aedes albopictus mosquito. The other virus was a novel virus, designated as Shinobi tetravirus (SHTV). Interestingly, the viral susceptibility of these two strains was almost even for Sindbis virus and Getah virus. We cloned SHTV and MERV from JCRB C6/36 cell line and then re-infected them into another C6/36 cell line, resulting in the reproduction of persistent infection with each virus. ZIKV growth was suppressed in SHTV and/or MERV re-infected C6/36 cells also. To our knowledge, this is the first demonstration that persistent infection with rhabdovirus and/or permutotetravirus suppressed flavivirus replication in mosquito cells.
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Affiliation(s)
- Ryosuke Fujita
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo, Japan
- Isotope Imaging Laboratory, Creative Research Institution, Hokkaido University, Sapporo, Japan
- Department of Research Promotion, Japan Agency for Medical Research and Development, Tokyo, Japan
| | - Fumihiro Kato
- Department of Research Promotion, Japan Agency for Medical Research and Development, Tokyo, Japan
- Department of Virology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Daisuke Kobayashi
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Katsunori Murota
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo, Japan
- Department of Research Promotion, Japan Agency for Medical Research and Development, Tokyo, Japan
| | - Tomohiko Takasaki
- Department of Virology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Shigeru Tajima
- Department of Virology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Chang-Kweng Lim
- Department of Virology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Masayuki Saijo
- Department of Virology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Haruhiko Isawa
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Kyoko Sawabe
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo, Japan
- Department of Agricultural and Environmental Biology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Japan
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18
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Maeki T, Tajima S, Kyaw AK, Matsumoto F, Miura K, Yamashita A, Yoshikawa A, Negishi K, Noguchi Y, Tadokoro K, Abe K, Taruya J, Koh J, Ito H, Ikegaya A, Abe F, Wada M, Nishigata T, Ikeda M, Kato F, Taniguchi S, Nakayama E, Takasaki T, Morita K, Lim CK, Saijo M. Comparison of Neutralizing Antibody Titers against Japanese Encephalitis Virus Genotype V Strain with Those against Genotype I and III Strains in the Sera of Japanese Encephalitis Patients in Japan in 2016. Jpn J Infect Dis 2018; 71:360-364. [PMID: 29962489 DOI: 10.7883/yoken.jjid.2018.126] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Japanese encephalitis (JE) is an acute viral disease caused by the Japanese encephalitis virus (JEV). JEV strains are classified into 5 genotypes (I-V). JEV genotype V strains have never been detected in Japan to date, but they were recently detected in South Korea. In the present analysis, we tried to determine if a JEV genotype V strain caused any JE case in Japan in 2016. Serum and cerebrospinal fluid samples were collected from 10 JE patients reported in Japan in 2016. JEV RNA was not detected in any of the samples. Although JEV is a single-serotype virus, it can be expected that the neutralizing antibody titers against JEV genotype V strains are higher than those against genotype I and III strains in the serum of patients with JE in Japan whose causative JEV was the genotype V strain. The neutralizing antibody titers against the JEV genotype V strain were not higher than those against the genotype I or III strain in any serum samples. Therefore, the evidence that the JEV genotype V strain caused any JE case in Japan in 2016 was absent.
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Affiliation(s)
- Takahiro Maeki
- Department of Virology I, National Institute of Infectious Diseases
| | - Shigeru Tajima
- Department of Virology I, National Institute of Infectious Diseases
| | | | | | - Kana Miura
- Nagasaki Prefectural Institute of Environment and Public Health
| | - Ayaka Yamashita
- Nagasaki Prefectural Institute of Environment and Public Health
| | - Akira Yoshikawa
- Nagasaki Prefectural Institute of Environment and Public Health
| | | | | | - Koh Tadokoro
- Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
| | - Koji Abe
- Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
| | | | | | | | | | - Fuyuki Abe
- Shizuoka Institute of Environment and Hygiene
| | - Mieko Wada
- Shimane Prefectural Institute of Public Health and Environmental Science
| | | | - Makiko Ikeda
- Department of Virology I, National Institute of Infectious Diseases
| | - Fumihiro Kato
- Department of Virology I, National Institute of Infectious Diseases
| | | | - Eri Nakayama
- Department of Virology I, National Institute of Infectious Diseases
| | | | | | - Chang-Kweng Lim
- Department of Virology I, National Institute of Infectious Diseases
| | - Masayuki Saijo
- Department of Virology I, National Institute of Infectious Diseases
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19
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Azami NAM, Moi ML, Ami Y, Suzaki Y, Lim CK, Taniguchi S, Saijo M, Takasaki T, Kurane I. Genotype-specific and cross-reactive neutralizing antibodies induced by dengue virus infection: detection of antibodies with different levels of neutralizing activities against homologous and heterologous genotypes of dengue virus type 2 in common marmosets (Callithrix jacchus). Virol J 2018; 15:51. [PMID: 29587780 PMCID: PMC5870686 DOI: 10.1186/s12985-018-0967-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Accepted: 03/19/2018] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND A vaccine against all four dengue virus (DENV) serotypes includes the formulation of one genotype of each serotype. Although genetic similarities among genotypes within a serotype are higher as compared to those among serotypes, differences in the immunogenicity of the included genotypes would be a critical issue in maximizing successful dengue vaccine development. Thus, we determined the neutralizing antibody responses against three genotypes of dengue virus serotype 2 (DENV-2), namely Cosmopolitan, Asian I, and Asian/American, after primary and secondary inoculation with DENV-2 in a dengue animal model, the common marmoset (Callithrix jacchus). METHODS A total of fifty-four plasma samples were obtained from thirty-four marmosets that were inoculated with clinically-isolated DENV strains or DENV candidate vaccines, were used in this study. Plasma samples were obtained from marmosets after primary inoculation with DENV-2 infection, secondary inoculation with homologous or heterologous genotypes, and tertiary inoculation with heterologous DENV. Neutralizing antibody titers against DENV-2 (Cosmopolitan, Asian I, and Asian/American genotypes) and DENV-1 were determined using a conventional plaque reduction neutralization assay. RESULTS In marmosets that were inoculated with the Cosmopolitan genotype in primary infection, neutralizing antibody neutralized 3 genotypes, and the titers to Asian I genotype were significantly higher than those to homologous Cosmopolitan genotype. After secondary DENV-2 infection with heterologous genotype (Asian I in primary and Asian/American in secondary), neutralizing antibody titers to Asian/American genotype was significantly higher than those against Cosmopolitan and Asian I genotypes. Following tertiary infection with DENV-1 following DENV-2 Asian I and Cosmopolitan genotypes, neutralizing antibody titers to Asian/American were also significantly higher than those against Cosmopolitan and Asian I genotypes. CONCLUSION The present study demonstrated that different levels of neutralizing antibodies were induced against variable DENV-2 genotypes after primary, secondary and tertiary infections, and that neutralizing antibody titers to some heterologous genotypes were higher than those to homologous genotypes within a serotype. The results indicate that heterogeneity and homogeneity of infecting genotypes influence the levels and cross-reactivity of neutralizing antibodies induced in following infections. The results also suggest that certain genotypes may possess advantage in terms of breakthrough infections against vaccination.
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Affiliation(s)
- Nor Azila Muhammad Azami
- Department of Virology 1, National Institute of Infectious Diseases, Tokyo, Japan
- Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ibaraki, Japan
| | - Meng Ling Moi
- Department of Virology 1, National Institute of Infectious Diseases, Tokyo, Japan
- Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
| | - Yasushi Ami
- Division of Experimental Animal Research, National Institute of Infectious Diseases, Tokyo, Japan
| | - Yuriko Suzaki
- Division of Experimental Animal Research, National Institute of Infectious Diseases, Tokyo, Japan
| | - Chang-Kweng Lim
- Department of Virology 1, National Institute of Infectious Diseases, Tokyo, Japan
| | - Satoshi Taniguchi
- Department of Virology 1, National Institute of Infectious Diseases, Tokyo, Japan
| | - Masayuki Saijo
- Department of Virology 1, National Institute of Infectious Diseases, Tokyo, Japan
| | | | - Ichiro Kurane
- National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku, Tokyo, 162-8640 Japan
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20
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Kobayashi D, Murota K, Fujita R, Itokawa K, Kotaki A, Moi ML, Ejiri H, Maekawa Y, Ogawa K, Tsuda Y, Sasaki T, Kobayashi M, Takasaki T, Isawa H, Sawabe K. Dengue Virus Infection in Aedes albopictus during the 2014 Autochthonous Dengue Outbreak in Tokyo Metropolis, Japan. Am J Trop Med Hyg 2018; 98:1460-1468. [PMID: 29557338 DOI: 10.4269/ajtmh.17-0954] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
In 2014 in Japan, 162 autochthonous dengue cases were reported for the first time in nearly 70 years. Here, we report the results of the detection and isolation of dengue virus (DENV) from mosquitoes collected in Tokyo Metropolis in 2014 and 2015. The phylogenetic relationship among DENV isolates from mosquitoes and from patients based on both the entire envelope gene and whole coding sequences was evaluated. Herein, 2,298 female and 956 male Aedes albopictus mosquitoes were collected at six suspected locations of DENV infection in Tokyo Metropolis from August to October in 2014 and grouped into 124 and 35 pools, respectively, for viral genome detection and DENV isolation. Dengue virus RNA was detected using reverse transcription polymerase chain reaction and TaqMan assays from 49 female pools; 16 isolates were obtained using C6/36 and Vero cells. High minimum infection rates (11.2-66.7) persisted until mid-September. All DENV isolates belonged to the genotype I in serotype 1 (DENV-1), and its sequences demonstrated > 99% homology to the sequence of the DENV isolated from a patient in the vicinity of Tokyo Metropolis in 2014. Therefore, Ae. albopictus was a major DENV vector, and a single DENV-1 strain circulated in Tokyo Metropolis in 2014. Dengue virus was not detected from male mosquitoes in 2014 and wild larvae in April 2015. Thus, the possibility of both vertical transmission and overwintering of DENV was extremely low, even in dengue-epidemic areas. This study reports the first entomological information on a dengue outbreak in a temperate region, where no Aedes aegypti mosquitoes are distributed.
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Affiliation(s)
- Daisuke Kobayashi
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo, Japan.,Department of Environmental Parasitology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Katsunori Murota
- Department of Research Promotion, Japan Agency for Medical Research and Development, Tokyo, Japan.,Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Ryosuke Fujita
- Isotope Imaging Laboratory, Creative Research Institution, Hokkaido University, Hokkaido, Japan.,Department of Research Promotion, Japan Agency for Medical Research and Development, Tokyo, Japan.,Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Kentaro Itokawa
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Akira Kotaki
- Department of Virology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Meng Ling Moi
- Department of Virology, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan.,Department of Virology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Hiroko Ejiri
- Division of Infectious Diseases Epidemiology and Control, National Defense Medical Research Institute, National Defense Medical College, Saitama, Japan.,Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Yoshihide Maekawa
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Kohei Ogawa
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Yoshio Tsuda
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Toshinori Sasaki
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Mutsuo Kobayashi
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Tomohiko Takasaki
- Kanagawa Prefectural Institute of Public Health, Kanagawa, Japan.,Department of Virology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Haruhiko Isawa
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Kyoko Sawabe
- Department of Agricultural and Environmental Biology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan.,Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo, Japan
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21
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Kato F, Ishida Y, Kawakami A, Takasaki T, Saijo M, Miura T, Hishiki T. Evaluation of Macaca radiata as a non-human primate model of Dengue virus infection. Sci Rep 2018; 8:3421. [PMID: 29467430 PMCID: PMC5821881 DOI: 10.1038/s41598-018-21582-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Accepted: 02/07/2018] [Indexed: 01/07/2023] Open
Abstract
Dengue virus (DENV) causes a wide range of illnesses in humans, including dengue fever and dengue haemorrhagic fever. Current animal models of DENV infection are limited for understanding infectious diseases in humans. Bonnet monkeys (Macaca radiata), a type of Old World monkey, have been used to study experimental and natural infections by flaviviruses, but Old World monkeys have not yet been used as DENV infection models. In this study, the replication levels of several DENV strains were evaluated using peripheral blood mononuclear cells. Our findings indicated that DENV-4 09-48 strain, isolated from a traveller returning from India in 2009, was a highly replicative virus. Three bonnet monkeys were infected with 09-48 strain and antibody responses were assessed. DENV nonstructural protein 1 antigen was detected and high viraemia was observed. These results indicated that bonnet monkeys and 09-48 strain could be used as a reliable primate model for the study of DENV.
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Affiliation(s)
- Fumihiro Kato
- Laboratory of Primate Model, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, Japan.,Department of Virology 1, National Institute of Infectious Diseases, Tokyo, Japan
| | - Yuki Ishida
- Laboratory of Primate Model, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, Japan
| | - Akihiko Kawakami
- Laboratory of Primate Model, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, Japan
| | - Tomohiko Takasaki
- Department of Virology 1, National Institute of Infectious Diseases, Tokyo, Japan.,Kanagawa Prefectural Institute of Public Health, Kanagawa, Japan
| | - Masayuki Saijo
- Department of Virology 1, National Institute of Infectious Diseases, Tokyo, Japan
| | - Tomoyuki Miura
- Laboratory of Primate Model, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, Japan
| | - Takayuki Hishiki
- Laboratory of Primate Model, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, Japan. .,Department of Microbiology and Cell Biology, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan.
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22
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Tsuboi M, Kutsuna S, Kato Y, Nakayama E, Shibasaki KI, Tajima S, Takasaki T, Katanami Y, Yamamoto K, Takeshita N, Hayakawa K, Kanagawa S, Ohmagari N. Autochthonous Chikungunya Fever in Traveler Returning to Japan from Cuba. Emerg Infect Dis 2018; 22:1683-5. [PMID: 27533717 PMCID: PMC4994370 DOI: 10.3201/eid2209.160603] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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23
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Takajo I, Sekizuka T, Fujita H, Kawano A, Kawaguchi T, Matsuda M, Kubo K, Miyauchi S, Umekita K, Nagatomo Y, Kuroda M, Takasaki T, Okayama A, Ando S. Possible Case of Novel Spotted Fever Group Rickettsiosis in Traveler Returning to Japan from India. Emerg Infect Dis 2018; 22:1079-82. [PMID: 27192498 PMCID: PMC4880103 DOI: 10.3201/eid2206.151985] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
A 60-year-old woman experienced fever, headache, rash, and altered vision after
returning to Japan from India. Testing detected elevated antibody titers to spotted
fever group rickettsia; PCR on blood yielded positive results for the rickettsial
outer membrane protein A gene. We isolated a unique rickettsial
agent and performed a full-genome analysis.
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24
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Nakayama E, Tajima S, Kotaki A, Shibasaki KI, Itokawa K, Kato K, Yamashita A, Sekizuka T, Kuroda M, Tomita T, Saijo M, Takasaki T. A summary of the imported cases of Chikungunya fever in Japan from 2006 to June 2016. J Travel Med 2018; 25:4763690. [PMID: 29394382 DOI: 10.1093/jtm/tax072] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2017] [Indexed: 11/14/2022]
Abstract
BACKGROUND Due to the huge 2-way human traffic between Japan and Chikungunya (CHIK) fever-endemic regions, 89 imported cases of CHIK fever were confirmed in Japan from January 2006 to June 2016. Fifty-four of 89 cases were confirmed virologically and serologically at the National Institute of Infectious Diseases, Japan and we present the demographic profiles of the patients and the phylogenetic features of 14 CHIK virus (CHIKV) isolates. METHODS Patients were diagnosed with CHIK fever by a combination of virus isolation, viral RNA amplification, IgM antibody-, IgG antibody-, and/or neutralizing antibody detection. The whole-genome sequences of the CHIKV isolates were determined by next-generation sequencing. RESULTS Prior to 2014, the source countries of the imported CHIK fever cases were limited to South and Southeast Asian countries. After 2014, when outbreaks occurred in the Pacific and Caribbean Islands and Latin American countries, there was an increase in the number of imported cases from these regions. A phylogenetic analysis of 14 isolates revealed that four isolates recovered from three patients who returned from Sri Lanka, Malaysia and Angola, belonged to the East/Central/South African genotype, while 10 isolates from 10 patients who returned from Indonesia, the Philippines, Tonga, the Commonwealth of Dominica, Colombia and Cuba, belonged to the Asian genotype. CONCLUSION Through the phylogenetic analysis of the isolates, we could predict the situations of the CHIK fever epidemics in Indonesia, Angola and Cuba. Although Japan has not yet experienced an autochthonous outbreak of CHIK fever, the possibility of the future introduction of CHIKV through an imported case and subsequent local transmission should be considered, especially during the mosquito-active season. The monitoring and reporting of imported cases will be useful to understand the situation of the global epidemic, to increase awareness of and facilitate the diagnosis of CHIK fever, and to identify a future CHIK fever outbreak in Japan.
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Affiliation(s)
- Eri Nakayama
- Department of Virology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Shigeru Tajima
- Department of Virology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Akira Kotaki
- Department of Virology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Ken-Ichi Shibasaki
- Department of Virology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Kentaro Itokawa
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo, Japan.,Japan Agency for Medical Research and Development (AMED), Japan
| | - Kengo Kato
- Pathogen Genomics Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Akifumi Yamashita
- Pathogen Genomics Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Tsuyoshi Sekizuka
- Pathogen Genomics Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Makoto Kuroda
- Pathogen Genomics Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Takashi Tomita
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Masayuki Saijo
- Department of Virology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Tomohiko Takasaki
- Department of Virology I, National Institute of Infectious Diseases, Tokyo, Japan.,Kanagawa Prefectural Institute of Public Health, Kanagawa, Japan
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25
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Moi ML, Ami Y, Muhammad Azami NA, Shirai K, Yoksan S, Suzaki Y, Kitaura K, Lim CK, Saijo M, Suzuki R, Takasaki T, Kurane I. Marmosets (Callithrix jacchus) as a non-human primate model for evaluation of candidate dengue vaccines: induction and maintenance of specific protective immunity against challenges with clinical isolates. J Gen Virol 2017; 98:2955-2967. [PMID: 29160199 DOI: 10.1099/jgv.0.000913] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Dengue virus (DENV) is one of the major infectious diseases in tropical regions and approximately half of the world population is at risk of infection. Vaccines would offer an effective control measure against this disease. We previously reported on the utility of marmosets as an animal model for studying primary and secondary dengue infections. Infected marmosets consistently develop viraemia and antibody kinetics that reflect those of patients with dengue. Thus, it is important to determine the utility of marmosets as an animal model for demonstrating vaccine efficacy. In this study, marmosets were inoculated with candidate vaccine and parent strains and challenged with a clinical DENV strain. The viraemia and antibody kinetics in these marmosets were determined. Marmosets consistently develop lower viraemia with an attenuated vaccine strain. During secondary challenge, the IgM response was delayed, whereas the IgG levels rose rapidly, indicating a secondary antibody response. The neutralizing activities against the homotypic serotype were high; all marmosets were protected against viraemia following secondary inoculation. The viraemia markers and antibody responses were consistent with those of human DENV infection and vaccinees. These results demonstrate the utility of marmosets as an animal model for the study of vaccine efficacy.
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Affiliation(s)
- Meng Ling Moi
- Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
| | - Yasushi Ami
- Division of Experimental Animal Research, National Institute of Infectious Diseases, Musashimurayama, Tokyo, Japan
| | | | - Kenji Shirai
- Department of Rheumatology and Clinical Immunology, Clinical Research Center for Allergy and Rheumatology, Sagamihara National Hospital, National Hospital Organization, Kanagawa, Japan
| | - Sutee Yoksan
- Institute of Molecular Biosciences, Mahidol University, Salaya, Nakhon Pathom, Thailand
| | - Yuriko Suzaki
- Division of Experimental Animal Research, National Institute of Infectious Diseases, Musashimurayama, Tokyo, Japan
| | - Kazutaka Kitaura
- Department of Rheumatology and Clinical Immunology, Clinical Research Center for Allergy and Rheumatology, Sagamihara National Hospital, National Hospital Organization, Kanagawa, Japan
| | - Chang-Kweng Lim
- Department of Virology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Masayuki Saijo
- Department of Virology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Ryuji Suzuki
- Department of Rheumatology and Clinical Immunology, Clinical Research Center for Allergy and Rheumatology, Sagamihara National Hospital, National Hospital Organization, Kanagawa, Japan
| | | | - Ichiro Kurane
- National Institute of Infectious Diseases, Tokyo, Japan
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26
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Hishiki T, Kato F, Tajima S, Toume K, Umezaki M, Takasaki T, Miura T. Hirsutine, an Indole Alkaloid of Uncaria rhynchophylla, Inhibits Late Step in Dengue Virus Lifecycle. Front Microbiol 2017; 8:1674. [PMID: 28912773 PMCID: PMC5582420 DOI: 10.3389/fmicb.2017.01674] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Accepted: 08/17/2017] [Indexed: 11/26/2022] Open
Abstract
Dengue virus (DENV) is transmitted to humans by Aedes mosquitoes and is a public health issue worldwide. No antiviral drugs specific for treating dengue infection are currently available. To identify novel DENV inhibitors, we analyzed a library of 95 compounds and 120 extracts derived from crude drugs (herbal medicines). In the primary screening, A549 cells infected with DENV-1 were cultured in the presence of each compound and extract at a final concentration of 10 μM (compound) and 100 μg/mL (extract), and reduction of viral focus formation was assessed. Next, we eliminated compounds and extracts which were cytotoxic using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. Hirsutine, an indole alkaloid of Uncaria rhynchophylla, was identified as a potent anti-DENV compound exhibiting high efficacy and low cytotoxicity. Hirsutine showed antiviral activity against all DENV serotypes. Time-of-drug-addition and time-of-drug-elimination assays indicated that hirsutine inhibits the viral particle assembly, budding, or release step but not the viral translation and replication steps in the DENV lifecycle. A subgenomic replicon system was used to confirm that hirsutine does not restrict viral genome RNA replication. Hirsutine is a novel DENV inhibitor and potential candidate for treating dengue fever.
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Affiliation(s)
- Takayuki Hishiki
- Laboratory of Primate Model, Institute for Frontier Life and Medical Sciences, Kyoto UniversityKyoto, Japan
| | - Fumihiro Kato
- Laboratory of Primate Model, Institute for Frontier Life and Medical Sciences, Kyoto UniversityKyoto, Japan
| | - Shigeru Tajima
- Department of Virology 1, National Institute of Infectious DiseasesTokyo, Japan
| | - Kazufumi Toume
- Division of Pharmacognosy, Institute of Natural Medicine, University of ToyamaToyama, Japan
| | - Masahito Umezaki
- Division of Chemo-Bioinformatics, Institute of Natural Medicine, University of ToyamaToyama, Japan
| | | | - Tomoyuki Miura
- Laboratory of Primate Model, Institute for Frontier Life and Medical Sciences, Kyoto UniversityKyoto, Japan
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27
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Kamiyama N, Soma R, Hidano S, Watanabe K, Umekita H, Fukuda C, Noguchi K, Gendo Y, Ozaki T, Sonoda A, Sachi N, Runtuwene LR, Miura Y, Matsubara E, Tajima S, Takasaki T, Eshita Y, Kobayashi T. Ribavirin inhibits Zika virus (ZIKV) replication in vitro and suppresses viremia in ZIKV-infected STAT1-deficient mice. Antiviral Res 2017; 146:1-11. [PMID: 28818572 PMCID: PMC7113888 DOI: 10.1016/j.antiviral.2017.08.007] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 06/27/2017] [Accepted: 08/13/2017] [Indexed: 02/08/2023]
Abstract
Zika fever, a mosquito-borne infectious disease caused by Zika virus (ZIKV), is an epidemic disease for which no effective therapy has been established. The recent outbreaks of ZIKV in Brazil and French Polynesia have been linked to a considerable increase in the incidence of fetal microcephaly and other diseases such as Guillain-Barre syndrome. Because there is currently no specific therapy or vaccine, the early exploitation of a method to prevent expansion of ZIKV is a high priority. To validate commonly used antiviral drugs, we evaluated the effect of ribavirin, a drug used to treat hepatitis C with interferon-β (IFN-β), on ZIKV replication. In mammalian cells, we observed an inhibitory effect of ribavirin on ZIKV replication and ZIKV-induced cell death without cytotoxic effect. Furthermore, we found that STAT1-deficient mice, which lack type I IFN signaling, were highly sensitive to ZIKV infection and exhibited lethal outcome. Ribavirin abrogated viremia in ZIKV-infected STAT-1-deficient mice. These data suggest that the inhibition of viral RNA-dependent RNA polymerases may be effective for treatment of ZIKV infection. Our data provide a new insight into the mechanisms for inhibition of ZIKV replication and prevention of Zika fever. Ribavirin inhibits ZIKV replication in mammalian cells. Ribavirin prevents ZIKV-induced apoptosis and cell death. Ribavirin administration abrogates viremia in ZIKV-infected STAT1-deficient mice. Leading to a prolonged survival.
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Affiliation(s)
- Naganori Kamiyama
- Department of Infectious Disease Control, Faculty of Medicine, Oita University, Oita 879-5593, Japan.
| | - Ryusuke Soma
- Department of Infectious Disease Control, Faculty of Medicine, Oita University, Oita 879-5593, Japan
| | - Shinya Hidano
- Department of Infectious Disease Control, Faculty of Medicine, Oita University, Oita 879-5593, Japan
| | - Kei Watanabe
- Department of Infectious Disease Control, Faculty of Medicine, Oita University, Oita 879-5593, Japan
| | - Hiroshi Umekita
- Department of Infectious Disease Control, Faculty of Medicine, Oita University, Oita 879-5593, Japan
| | - Chiaki Fukuda
- Department of Infectious Disease Control, Faculty of Medicine, Oita University, Oita 879-5593, Japan
| | - Kaori Noguchi
- Department of Infectious Disease Control, Faculty of Medicine, Oita University, Oita 879-5593, Japan
| | - Yoshiko Gendo
- Department of Infectious Disease Control, Faculty of Medicine, Oita University, Oita 879-5593, Japan
| | - Takashi Ozaki
- Department of Infectious Disease Control, Faculty of Medicine, Oita University, Oita 879-5593, Japan
| | - Akira Sonoda
- Department of Infectious Disease Control, Faculty of Medicine, Oita University, Oita 879-5593, Japan
| | - Nozomi Sachi
- Department of Infectious Disease Control, Faculty of Medicine, Oita University, Oita 879-5593, Japan
| | - Lucky Ronald Runtuwene
- Department of Infectious Disease Control, Faculty of Medicine, Oita University, Oita 879-5593, Japan
| | - Yumako Miura
- Department of Neurology, Faculty of Medicine, Oita University, Oita 879-5593, Japan
| | - Etsuro Matsubara
- Department of Neurology, Faculty of Medicine, Oita University, Oita 879-5593, Japan
| | - Shigeru Tajima
- Department of Virology I, National Institute of Infectious Diseases, Tokyo 162-8640, Japan
| | - Tomohiko Takasaki
- Department of Virology I, National Institute of Infectious Diseases, Tokyo 162-8640, Japan
| | - Yuki Eshita
- Department of Infectious Disease Control, Faculty of Medicine, Oita University, Oita 879-5593, Japan
| | - Takashi Kobayashi
- Department of Infectious Disease Control, Faculty of Medicine, Oita University, Oita 879-5593, Japan.
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28
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Matsuda S, Nerome R, Maegawa K, Kotaki A, Sugita S, Kawasaki K, Kuroda K, Yamaguchi R, Takasaki T, Nerome K. Development of a Japanese encephalitis virus-like particle vaccine in silkworms using codon-optimised prM and envelope genes. Heliyon 2017; 3:e00286. [PMID: 28435908 PMCID: PMC5390689 DOI: 10.1016/j.heliyon.2017.e00286] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Revised: 03/03/2017] [Accepted: 03/28/2017] [Indexed: 11/29/2022] Open
Abstract
We have successfully prepared a Japanese encephalitis virus (JEV) - Nakayama virus like particle (NVLP) vaccine using synthetic codon-optimized prM and E genes. The expression of the recombinant JEV Nakayama-BmNPV (JEV-NNPV) virus was determined in infected silkworm Bm-N cells by fluorescence and Western blot analysis. The recombinant was inoculated into silkworm pupae and the yield of Nakayama VLP (NVLP) reached a peak in the homogenates after 3 days. Additionally, in the peptide analysis of infected pupae homogenate, it appeared approximately 300-500 μg E protein/pupa were produced. When purified the above eluates on the discontinuous sucrose density gradient centrifugation, NVLP showed a strong hemagglutination (HA) activity by using chicken red blood cell in phosphate-buffered saline (PBS) free from Mg++ and Ca++ ions. The immune antisera against NVLP strain could efficiently neutralize the plaque formation of Nakayama, Beijing-1 and Muar strains, showing tendency of much higher reaction with heterologous Muar strain than homologous Nakayama strain. Our findings suggest that the JEV-NVLP may be useful for JEV epidemic control in many endemic areas of Asian countries as a widely effective and less expensive JE vaccine.
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Affiliation(s)
- Sayaka Matsuda
- The Institute of Biological Resources, 893-2, Nakayama, Nago-shi, Okinawa 905-0004, Japan
| | - Reiko Nerome
- The Institute of Biological Resources, 893-2, Nakayama, Nago-shi, Okinawa 905-0004, Japan
| | - Kenichi Maegawa
- The Institute of Biological Resources, 893-2, Nakayama, Nago-shi, Okinawa 905-0004, Japan
| | - Akira Kotaki
- The Institute of Biological Resources, 893-2, Nakayama, Nago-shi, Okinawa 905-0004, Japan
| | - Shigeo Sugita
- Equine Research Institute, Japan Racing Association, 1400-4, Shiba, Shimotsuke-shi, Tochigi 329-0412, Japan
| | - Kazunori Kawasaki
- National Institute of Advanced Science and Technology (AIST), 1-8-31, Midorigaoka, Ikeda, Osaka 563-8577, Japan
| | - Kazumichi Kuroda
- Division of Microbiology, Nihon University School of Medicine, 30-1, Oyaguchi-kamicho, Itabashi-ku, Tokyo 173-8610, Japan
| | - Ryoji Yamaguchi
- Laboratory of Veterinary Pathology, Department of Veterinary, Faculty of Agriculture, University of Miyazaki, 1-1 Gakuenkibanadai-Nishi, Miyazaki 889-2192, Japan
| | - Tomohiko Takasaki
- Department of Virology 1, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Kuniaki Nerome
- The Institute of Biological Resources, 893-2, Nakayama, Nago-shi, Okinawa 905-0004, Japan
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Yamanaka A, Moi ML, Takasaki T, Kurane I, Konishi E. Neutralizing and enhancing antibody responses to five genotypes of dengue virus type 1 (DENV-1) in DENV-1 patients. J Gen Virol 2017; 98:166-172. [PMID: 27911254 DOI: 10.1099/jgv.0.000669] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Dengue virus (DENV) has four distinct serotypes, DENV-1-4, with four to six genotypes in each serotype. The World Health Organization recommends tetravalent formulations including one genotype of each serotype as safe and effective dengue vaccines. Here, we investigated the impact of genotype on the neutralizing antibody responses to DENV-1 in humans. Convalescent sera collected from patients with primary infection of DENV-1 were examined for neutralizing antibody against single-round infectious particles of the five DENV-1 genotypes (GI-GV). In both GI- and GIV-infected patients, their neutralizing antibody titres against the five genotypes were similar, differing ≤4-fold from the homogenotypic responses. The enhancing activities against the five genotypes were also similar in these sera. Thus, the genotype strains of DENV-1 showed no significant antigenic differences in these patients, suggesting that GI- or GIV-derived vaccine antigens should induce equivalent levels of neutralizing antibodies against all DENV-1 genotypes.
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Affiliation(s)
- Atsushi Yamanaka
- BIKEN Endowed Department of Dengue Vaccine Development, Faculty of Tropical Medicine, Mahidol University, 420/6 Ratchawithi Road, Ratchathewi, Bangkok 10400, Thailand.,BIKEN Endowed Department of Dengue Vaccine Development, Research Institute for Microbial Diseases, Osaka University, 3-1 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Meng Ling Moi
- Present address: Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan.,Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Tomohiko Takasaki
- Present address: Kanagawa Prefectural Institute of Public Health, Kanagawa, Japan.,Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Ichiro Kurane
- National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Eiji Konishi
- BIKEN Endowed Department of Dengue Vaccine Development, Research Institute for Microbial Diseases, Osaka University, 3-1 Yamada-oka, Suita, Osaka 565-0871, Japan.,BIKEN Endowed Department of Dengue Vaccine Development, Faculty of Tropical Medicine, Mahidol University, 420/6 Ratchawithi Road, Ratchathewi, Bangkok 10400, Thailand
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30
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Yamanaka A, Moi ML, Takasaki T, Kurane I, Matsuda M, Suzuki R, Konishi E. Utility of Japanese encephalitis virus subgenomic replicon-based single-round infectious particles as antigens in neutralization tests for Zika virus and three other flaviviruses. J Virol Methods 2017; 243:164-171. [PMID: 28219763 DOI: 10.1016/j.jviromet.2017.02.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 02/16/2017] [Accepted: 02/17/2017] [Indexed: 11/18/2022]
Abstract
The introduction of a foreign virus into an area may cause an outbreak, as with the Zika virus (ZIKV) outbreak in the Americas. Preparedness for handling a viral outbreak involves the development of tests for the serodiagnosis of foreign virus infections. We previously established a gene-based technology to generate some flaviviral antigens useful for functional antibody assays. The technology utilizes a Japanese encephalitis virus subgenomic replicon to generate single-round infectious particles (SRIPs) that possess designed surface antigens. In the present study, we successfully expanded the capacity of SRIPs to four human-pathogenic mosquito-borne flaviviruses that could potentially be introduced from endemic to non-endemic countries: ZIKV, Sepik virus, Wesselsbron virus, and Usutu virus. Flavivirus-crossreactive monoclonal antibodies dose-dependently neutralized these SRIPs. ZIKV-SRIPs also produced antibody-dose-dependent neutralization curves equivalent to those shown by authentic ZIKV particles using sera from a Zika fever patient. The faithful expression of designed surface antigens on SRIPs will allow their use in neutralization tests to diagnose foreign flaviviral infections.
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Affiliation(s)
- Atsushi Yamanaka
- BIKEN Endowed Department of Dengue Vaccine Development, Faculty of Tropical Medicine, Mahidol University,420/6 Ratchawithi Road, Ratchathewi, Bangkok 10400, Thailand(3); BIKEN Endowed Department of Dengue Vaccine Development, Research Institute for Microbial Diseases, Osaka University, 3-1 Yamada-oka, Suita, Osaka, 565-0871, Japan.
| | - Meng Ling Moi
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Tomohiko Takasaki
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Ichiro Kurane
- National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Mami Matsuda
- Department of Virology II, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Ryosuke Suzuki
- Department of Virology II, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Eiji Konishi
- BIKEN Endowed Department of Dengue Vaccine Development, Faculty of Tropical Medicine, Mahidol University,420/6 Ratchawithi Road, Ratchathewi, Bangkok 10400, Thailand(3); BIKEN Endowed Department of Dengue Vaccine Development, Research Institute for Microbial Diseases, Osaka University, 3-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
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31
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Tajima S, Takasaki T. [Dengue fever]. Nihon Rinsho 2016; 74:2042-2046. [PMID: 30550664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Dengue fever is mosquito-transmitted viral diseases. Dengue viruses (DENV) belong to the family Flaviviridae, which includes other clinically important human pathogenic flavivi- ruses. No effective antiviral drugs exist to treat dengue, however, a vaccine for dengue has been licensed in several countries recently. DENV infections are a major cause of morbidity and mortality in most tropical and subtropical areas of the world, but they have also emerged in other regions. In August 2014, an autochthonous case of dengue fever in a patient who had not traveled endemic country was reported in Tokyo after 70 years with no dengue out- breaks.
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Moi ML, Kobayashi D, Isawa H, Sasaki T, Saijo M, Kurane I, Sawabe K, Takasaki T. Dengue Virus Isolation in Mosquito Aedes albopictus Captured During an Outbreak in Tokyo, 2014, by a Method Relying on Antibody-Dependent Enhancement Mechanism Using FcγR-Expressing BHK Cells. Vector Borne Zoonotic Dis 2016; 16:810-812. [PMID: 27911695 DOI: 10.1089/vbz.2016.1982] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Dengue virus (DENV) isolation from mosquitoes is necessary for providing definitive evidence of virus circulation, and is critical for further virological characterization and determination of epidemiological characteristics. By using Aedes albopictus mosquitoes captured during an outbreak in Tokyo in 2014, we compared the DENV isolation rates of a conventional virus isolation method that uses C6/36 mosquito cells as assay cells with those of a virus isolation method that relies on an antibody-dependent enhancement (ADE) mechanism by using FcγR-expressing baby hamster kidney (BHK) cells and an antibody with ADE activity. The number of DENV genome copies and infectious virus titers in cell culture supernatant fluids of FcγR-expressing BHK cells were significantly higher than those of the C6/36 cells. In addition, DENV was isolated from a mosquito pool by using FcγR-expressing BHK cells only in the presence of infection-enhancing antibody. Infectious virus was detected in six mosquito pools only by using FcγR-expressing BHK cells. The results suggest that the method that relies on ADE mechanism by using the FcγR-expressing BHK cells and an antibody with ADE activity is useful for DENV isolation from mosquitoes caught in the field.
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Affiliation(s)
- Meng Ling Moi
- 1 Institute of Tropical Medicine, Nagasaki University , Nagasaki, Japan .,2 Department of Virology 1, National Institute of Infectious Diseases , Tokyo, Japan
| | - Daisuke Kobayashi
- 3 Department of Medical Entomology, National Institute of Infectious Diseases , Tokyo, Japan
| | - Haruhiko Isawa
- 3 Department of Medical Entomology, National Institute of Infectious Diseases , Tokyo, Japan
| | - Toshinori Sasaki
- 3 Department of Medical Entomology, National Institute of Infectious Diseases , Tokyo, Japan
| | - Masayuki Saijo
- 2 Department of Virology 1, National Institute of Infectious Diseases , Tokyo, Japan
| | - Ichiro Kurane
- 4 National Institute of Infectious Diseases , Tokyo, Japan
| | - Kyoko Sawabe
- 3 Department of Medical Entomology, National Institute of Infectious Diseases , Tokyo, Japan
| | - Tomohiko Takasaki
- 2 Department of Virology 1, National Institute of Infectious Diseases , Tokyo, Japan .,5 Kanagawa Prefectural Institute of Public Health , Kanagawa, Japan
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Tezuka K, Kuramitsu M, Okuma K, Nojima K, Araki K, Shinohara N, Matsumoto C, Satake M, Takasaki T, Saijo M, Kurane I, Hamaguchi I. Development of a novel dengue virus serotype-specific multiplex real-time reverse transcription-polymerase chain reaction assay for blood screening. Transfusion 2016; 56:3094-3100. [PMID: 27774649 DOI: 10.1111/trf.13875] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Revised: 07/22/2016] [Accepted: 07/28/2016] [Indexed: 11/28/2022]
Abstract
BACKGROUND Dengue fever is caused by four related RNA viruses of the genus Flavivirus, dengue virus (DENV)-1, -2, -3, and -4, which are transmitted to humans by mosquitoes. Although DENV is not endemic in Japan, an autochthonous dengue outbreak occurred in 2014. Several transfusion-transmitted cases have also been reported after the use of blood and plasma products in DENV-endemic countries. The aim of this study was to develop a novel multiplex reverse transcription-polymerase chain reaction (RT-PCR) assay for DENV blood screening. STUDY DESIGN AND METHODS Large-scale oligonucleotide screening was performed to obtain DENV-specific primers and probes using a variety of DENV clinical isolates. A multiplex RT-PCR assay was then developed using the identified oligonucleotides and the ability of this assay to detect DENV RNA was evaluated. RESULTS A number of oligonucleotides suitable for DENV RNA detection were identified and a novel DENV serotype-specific multiplex RT-PCR assay was successfully established. Comparative analysis revealed that the multiplex assay could detect levels of viral contamination as low as 100 viral copies/mL. CONCLUSION This established serotype-specific multiplex RT-PCR assay provides a simple, sensitive, and quantitative detection method for DENV, which could be applied in the screening of blood samples to prevent transfusion-transmitted DENV infection.
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Affiliation(s)
- Kenta Tezuka
- Department of Safety Research on Blood and Biological Products, National Institute of Infectious Diseases, Tokyo, Japan
| | - Madoka Kuramitsu
- Department of Safety Research on Blood and Biological Products, National Institute of Infectious Diseases, Tokyo, Japan
| | - Kazu Okuma
- Department of Safety Research on Blood and Biological Products, National Institute of Infectious Diseases, Tokyo, Japan
| | - Kiyoko Nojima
- Department of Safety Research on Blood and Biological Products, National Institute of Infectious Diseases, Tokyo, Japan
| | - Kumiko Araki
- Department of Safety Research on Blood and Biological Products, National Institute of Infectious Diseases, Tokyo, Japan
| | - Naoya Shinohara
- Central Blood Institute, Blood Service Headquarters, Japanese Red Cross Society, Tokyo, Japan
| | - Chieko Matsumoto
- Central Blood Institute, Blood Service Headquarters, Japanese Red Cross Society, Tokyo, Japan
| | - Masahiro Satake
- Central Blood Institute, Blood Service Headquarters, Japanese Red Cross Society, Tokyo, Japan
| | - Tomohiko Takasaki
- Department of Virology 1, National Institute of Infectious Diseases, Tokyo, Japan
| | - Masayuki Saijo
- Department of Virology 1, National Institute of Infectious Diseases, Tokyo, Japan
| | - Ichiro Kurane
- Department of Virology 1, National Institute of Infectious Diseases, Tokyo, Japan
| | - Isao Hamaguchi
- Department of Safety Research on Blood and Biological Products, National Institute of Infectious Diseases, Tokyo, Japan
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Saito Y, Moi ML, Takeshita N, Lim CK, Shiba H, Hosono K, Saijo M, Kurane I, Takasaki T. Japanese encephalitis vaccine-facilitated dengue virus infection-enhancement antibody in adults. BMC Infect Dis 2016; 16:578. [PMID: 27756212 PMCID: PMC5070094 DOI: 10.1186/s12879-016-1873-8] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Accepted: 09/27/2016] [Indexed: 02/01/2023] Open
Abstract
Background Dengue virus (DENV) and Japanese encephalitis virus (JEV) belong to the genus Flavivirus, and infection with a virus within this genus induces antibodies that are cross-reactive to other flaviviruses. Particularly in DENV infection, antibodies to DENV possess two competing activities: neutralizing activity and infection-enhancing activity. These antibody activities are considered central in modulating clinical outcomes of DENV infection. Here, we determined the neutralizing and infection-enhancing activity of DENV cross-reactive antibodies in adults before and after JE vaccination. Methods Participants were 77 Japanese adults who had received a single dose of inactivated Vero cell-derived JE vaccine. A total of 154 serum samples were obtained either before or approximately a month after a single dose of JE vaccination. The antibody-dependent enhancement (ADE) activity to each of four DENV serotypes and the neutralizing activities to DENV and to JEV were determined in each of the serum samples by using baby hamster kidney (BHK) cells and FcγR-expressing BHK cells. Results A total of 18 post-JE immunization samples demonstrated cross-reactivity to DENV in an anti-DENV IgG ELISA. DENV neutralizing antibodies were not detected after JE vaccination in this study. However, undiluted post-JE vaccination serum samples from 26 participants demonstrated monotypic and heterotypic ADE activity to DENV. ADE activity was also observed in 1:10-diluted samples from 35 of the JE vaccine recipients (35/77, 45 %). Conclusion In summary, JE vaccination induced DENV cross-reactive antibodies, and at sub-neutralizing levels, these DENV cross-reactive antibodies possess DENV infection-enhancement activity. The results also indicate that cross-reactivity to DENV is associated with high levels of JEV neutralizing antibodies and, the DENV cross-reactivity is further facilitated by JE vaccination. Electronic supplementary material The online version of this article (doi:10.1186/s12879-016-1873-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yuka Saito
- Department of Virology 1, National Institute of Infectious Diseases, Tokyo, 162-8640, Japan.,College of Bioresource Science, Nihon University, Fujisawa, Kanagawa, 252-0880, Japan
| | - Meng Ling Moi
- Department of Virology, Institute of Tropical Medicine, Nagasaki University, Sakamoto 1-12-4, Nagasaki, Nagasaki, 852-8523, Japan.
| | - Nozomi Takeshita
- National Center for Global Health and Medicine, Tokyo, 162-8655, Japan
| | - Chang-Kweng Lim
- Department of Virology 1, National Institute of Infectious Diseases, Tokyo, 162-8640, Japan
| | - Hajime Shiba
- College of Bioresource Science, Nihon University, Fujisawa, Kanagawa, 252-0880, Japan
| | - Kuniaki Hosono
- College of Bioresource Science, Nihon University, Fujisawa, Kanagawa, 252-0880, Japan
| | - Masayuki Saijo
- Department of Virology 1, National Institute of Infectious Diseases, Tokyo, 162-8640, Japan
| | - Ichiro Kurane
- National Institute of Infectious Diseases, Tokyo, 162-8640, Japan
| | - Tomohiko Takasaki
- Kanagawa Prefectural Institute of Public Health, Chigasaki, Kanagawa, 253-0087, Japan
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35
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Moi ML, Takasaki T. [Dengue Fever]. Rinsho Byori 2016; 64:1033-1043. [PMID: 30609456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Dengue fever is a painful, debilitating, arthropod-borne disease. In recent years, dengue endemic regions have markedly expanded in the tropics, South-east Asia, and the Americas. Epidemics have also been re- ported in subtropical regions of East Asia and Europe. Factors including an increase in the frequency of international travel and period of stay, increase in population density, and global warming, are hypothesized to be associated with the rapid spread of dengue. Approximately 4 billion people are estimated to be infected with the virus each year'). However, there are no effective therapeutics nor clinically approved vaccine for dengue in the region. In 2014, a local dengue outbreak involving 162 cases occurred in Japan2). With the increasing annual numbers of imported dengue cases, there is a need to strengthen and improve the capacity for disease control and prevention. [Review].
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Abstract
Dengue viruses (DENVs) and their vectors are widely distributed throughout the tropical and subtropical regions of the world. An autochthonous case of DENV was reported in Tokyo, Japan, in 2014, for the first time in 70 years. A comprehensive database of DENV sequences containing both serotype and genotype data and epidemiological data is crucial to trace DENV outbreak isolates and promptly respond to outbreaks. We constructed a DENV database containing the serotype, genotype, year and country/region of collection by collecting all publically available DENV sequence information from the National Center for Biotechnology Information (NCBI) and assigning genotype information. We also implemented the web service Dengue Genographic Viewer (DGV), which shows the geographical distribution of each DENV genotype in a user-specified time span. DGV also assigns the serotype and genotype to a user-specified sequence by performing a homology search against the curated DENV database, and shows its homologous sequences with the geographical position and year of collection. DGV also shows the distribution of DENV-infected entrants to Japan by plotting epidemiological data from the Infectious Agents Surveillance Report (IASR), Japan. This overview of the DENV genotype distribution may aid in planning for the control of DENV infections. DGV is freely available online at: (https://gph.niid.go.jp/geograph/dengue/content/genomemap).
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Affiliation(s)
- Akifumi Yamashita
- Pathogen Genomics Center, National Institute of Infectious Diseases Tokyo, Japan
| | - Tetsuya Sakamoto
- Pathogen Genomics Center, National Institute of Infectious DiseasesTokyo, Japan; Remote Operations Services Department, CTC System Management CorporationTokyo, Japan
| | - Tsuyoshi Sekizuka
- Pathogen Genomics Center, National Institute of Infectious Diseases Tokyo, Japan
| | - Kengo Kato
- Pathogen Genomics Center, National Institute of Infectious Diseases Tokyo, Japan
| | - Tomohiko Takasaki
- Department of Virology I, National Institute of Infectious Diseases Tokyo, Japan
| | - Makoto Kuroda
- Pathogen Genomics Center, National Institute of Infectious Diseases Tokyo, Japan
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Kato F, Ishida Y, Oishi S, Fujii N, Watanabe S, Vasudevan SG, Tajima S, Takasaki T, Suzuki Y, Ichiyama K, Yamamoto N, Yoshii K, Takashima I, Kobayashi T, Miura T, Igarashi T, Hishiki T. Novel antiviral activity of bromocriptine against dengue virus replication. Antiviral Res 2016; 131:141-7. [PMID: 27181378 DOI: 10.1016/j.antiviral.2016.04.014] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2016] [Revised: 04/25/2016] [Accepted: 04/28/2016] [Indexed: 11/28/2022]
Abstract
Dengue virus (DENV) infectious disease is a major public health problem worldwide; however, licensed vaccines or specific antiviral drugs against this infection are not available. To identify novel anti-DENV compounds, we screened 1280 pharmacologically active compounds using focus reduction assay. Bromocriptine (BRC) was found to have potent anti-DENV activity and low cytotoxicity (half maximal effective concentration [EC50], 0.8-1.6 μM; and half maximal cytotoxicity concentration [CC50], 53.6 μM). Time-of-drug-addition and time-of-drug-elimination assays suggested that BRC inhibits translation and/or replication steps in the DENV life cycle. A subgenomic replicon system was used to verify that BRC restricts RNA replication step. Furthermore, a single amino acid substitution (N374H) was detected in the NS3 protein that conferred resistance to BRC. In summary, BRC was found to be a novel DENV inhibitor and a potential candidate for the treatment of DENV infectious disease.
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Affiliation(s)
- Fumihiro Kato
- Laboratory of Primate Model, Institute for Virus Research, Kyoto University, Kyoto, Japan; Department of Virology 1, National Institute of Infectious Diseases, Japan
| | - Yuki Ishida
- Laboratory of Primate Model, Institute for Virus Research, Kyoto University, Kyoto, Japan
| | - Shinya Oishi
- Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, Japan
| | - Nobutaka Fujii
- Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, Japan
| | - Satoru Watanabe
- Program in Emerging Infectious Diseases, Duke-NUS Graduate Medical School, Singapore
| | - Subhash G Vasudevan
- Program in Emerging Infectious Diseases, Duke-NUS Graduate Medical School, Singapore
| | - Shigeru Tajima
- Department of Virology 1, National Institute of Infectious Diseases, Japan
| | - Tomohiko Takasaki
- Department of Virology 1, National Institute of Infectious Diseases, Japan
| | - Youichi Suzuki
- Department of Microbiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Koji Ichiyama
- Department of Microbiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Naoki Yamamoto
- Department of Microbiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Kentaro Yoshii
- Laboratry of Public Health, Graduate School of Veterinary Medicine, Hokkaido University, Hokkaido, Japan
| | - Ikuo Takashima
- Laboratry of Public Health, Graduate School of Veterinary Medicine, Hokkaido University, Hokkaido, Japan
| | - Takeshi Kobayashi
- Laboratory of Primate Model, Institute for Virus Research, Kyoto University, Kyoto, Japan
| | - Tomoyuki Miura
- Laboratory of Primate Model, Institute for Virus Research, Kyoto University, Kyoto, Japan
| | - Tatsuhiko Igarashi
- Laboratory of Primate Model, Institute for Virus Research, Kyoto University, Kyoto, Japan
| | - Takayuki Hishiki
- Laboratory of Primate Model, Institute for Virus Research, Kyoto University, Kyoto, Japan; Viral Infectious Diseases Project, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan.
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Tajima S, Nakayama E, Kotaki A, Moi ML, Ikeda M, Yagasaki K, Saito Y, Shibasaki KI, Saijo M, Takasaki T. Whole Genome Sequencing-Based Molecular Epidemiologic Analysis of Autochthonous Dengue Virus Type 1 Strains Circulating in Japan in 2014. Jpn J Infect Dis 2016; 70:45-49. [PMID: 27169954 DOI: 10.7883/yoken.jjid.2016.086] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Cases of autochthonous infections of dengue virus type 1 (DENV-1) were detected in Japan after a 70-year period devoid of dengue outbreaks. We previously showed that E gene sequences are identical in 11 of the 12 DENV-1 strains autochthonous to Japan. However, the E sequence represents only 14% of the DENV-1 genome. In the present study, we have sequenced the entire genome of 6 autochthonous DENV-1 strains that were isolated from patients during the 2014 outbreak. Sequencing of 5 Yoyogi group strains with identical E sequences and 1 Shizuoka strain with a different E sequence revealed that the first Yoyogi group strain differed from the Shizuoka strain by 18 amino acid residues. Furthermore, 2 Yoyogi group strains had different genomic sequences while the other 3 had identical genomes. Phylogenetic analyses indicated that the Hyogo strain, a Yoyogi group strain, was the first to diverge from the other 4 Yoyogi group strains. The E gene sequence of the Yoyogi group strains exhibits the highest homology to those of the strains isolated in Malaysia and Singapore between 2013 and 2014. The patient infected with the Hyogo strain visited Malaysia before the onset of dengue fever, suggesting that this was a case of dengue infection imported from Malaysia.
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Affiliation(s)
- Shigeru Tajima
- Department of Virology I, National Institute of Infectious Diseases
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39
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Moi ML, Takasaki T, Kurane I. Human antibody response to dengue virus: implications for dengue vaccine design. Trop Med Health 2016; 44:1. [PMID: 27398060 PMCID: PMC4934144 DOI: 10.1186/s41182-016-0004-y] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Accepted: 01/13/2016] [Indexed: 11/10/2022] Open
Abstract
Dengue, a global health threat, is a leading cause of morbidity and mortality in most tropical and subtropical countries. Dengue can range from asymptomatic, relatively mild dengue fever to severe and life-threatening dengue hemorrhagic fever. Disease severity and outcome is largely associated with the host immune response. Several candidate vaccines in clinical trials appear promising as effective measures for dengue disease control. Vaccine development has been hampered by safety and efficacy issues, driven by a lack of understanding of the host immune response. This review focuses on recent research findings on the dengue host immune response, particularly in humans, and the relevance of these findings to challenges in vaccine development.
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Affiliation(s)
- Meng Ling Moi
- />Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
- />National Institute of Infectious Diseases, Tokyo, Japan
| | | | - Ichiro Kurane
- />National Institute of Infectious Diseases, Tokyo, Japan
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40
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Hitani A, Yamaya W, To M, Kano I, Honda-Hosono N, Takasaki T, Haruki K. [A Case of Dengue Fever and Subsequent Long-lasting Depression Accompanied by Alopecia in a Japanese Traveler Returning from Bali, Indonesia]. ACTA ACUST UNITED AC 2016; 89:279-82. [PMID: 26552127 DOI: 10.11150/kansenshogakuzasshi.89.279] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Recovery from dengue fever is generally rapid and uneventful. However, recuperation is often prolonged and may be accompanied by noticeable depression. We present herein on a traveler to Indonesia who developed long-lasting depression after the classic symptoms of dengue fever such as fever, arthralgia, and macropapular rash had resolved. A previously healthy 42-year old japanese woman presented to the Travel Clinic of Seirei Yokohama Hospital with complaints of 4 days of fever, joint aches, bone pain, and a macropapular rash on her torso. She had returned from Bali 5 days previously. During her 1-week stay, one day was spent in rural, mountainous areas where she was exposed to several mosquito bites. The 1st serum sample collected 4 days after the disease onset gave positive result in the rapid dengue IgM antibody test and the rapid dengue NS1 antigen immunechromatographic test. The DENV-1 genome was detected with RT-PCR. Her 13-year old son, who had accompanied her, was also diagnosed as having dengue fever and he recovered without event. The Above-mentioned symptoms resolved within one week. However, the patient suffered from prolonged depression. She also noticed loss of hair 3 months after the disease onset Administration of a Serotonin-Noradrenalin Reuptake Inhibitor and a minor tranquillizer required to allow her requied to lead a normal life. Although she gradually felt better, it took approximately 2 years until she had recovered completely without taking any antidepressant and minor tranquillizer. It is a well-known fact in endemic countries that dengue fever could have an significant impact on the patients' mental well-being. However, it appears that physicians in non-endemic countries are not fully aware of the prolonged depression, which can occur subsequent to the acute illness. Follow-up consultations of returing travelers who have recoverd from dengu fever should be arranged to monitor their mental and emotional states closely.
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41
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Itoh K, Iwamoto K, Satoh Y, Fujita T, Takahashi K, Katano H, Hasegawa H, Takasaki T, Tando S, Fushiki S. Knowledge Obtained from an Elderly Case of Japanese Encephalitis. Intern Med 2016; 55:2487-90. [PMID: 27580555 DOI: 10.2169/internalmedicine.55.6646] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The nationwide introduction of a Japanese encephalitis (JE) vaccine has contributed to a reduction in the annual infection rate of JE in Japan. However, the current neutralizing antibody prevalence ratio in Japan is approximately 20% in children 3-4 years of age and in people in their forties and fifties. We herein report a man with JE who was definitively diagnosed by multi-virus real-time polymerase chain reaction employing biopsied brain tissue and serological examinations. JE should be kept in mind when a patient has severe encephalitis of unknown etiology. In order to protect the susceptible population from JE, vaccination is recommended, especially for children and middle-aged people.
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Affiliation(s)
- Kyoko Itoh
- Department of Pathology & Applied Neurobiology, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Japan
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42
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Shinohara K, Kutsuna S, Takasaki T, Moi ML, Ikeda M, Kotaki A, Yamamoto K, Fujiya Y, Mawatari M, Takeshita N, Hayakawa K, Kanagawa S, Kato Y, Ohmagari N. Zika fever imported from Thailand to Japan, and diagnosed by PCR in the urines. J Travel Med 2016; 23:tav011. [PMID: 26782128 DOI: 10.1093/jtm/tav011] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/24/2015] [Indexed: 11/12/2022]
Abstract
In July 2014, a Japanese traveller returning from Thailand was investigated for fever, headache, rash and conjunctivitis. Zika virus RNA was detected in his urine sample by real-time reverse transcription polymerase chain reaction. Serological tests showed cross reactivity of IgM against the dengue virus. Zika fever could be misdiagnosed or missed and should be considered in febrile patients with a rash, especially those returning from Thailand.
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Affiliation(s)
- Koh Shinohara
- Disease Control and Prevention Center, National Center for Global Health and Medicine, Tokyo, Japan and
| | - Satoshi Kutsuna
- Disease Control and Prevention Center, National Center for Global Health and Medicine, Tokyo, Japan and
| | - Tomohiko Takasaki
- Department of Virology, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - Meng Ling Moi
- Department of Virology, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - Makiko Ikeda
- Department of Virology, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - Akira Kotaki
- Department of Virology, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - Kei Yamamoto
- Disease Control and Prevention Center, National Center for Global Health and Medicine, Tokyo, Japan and
| | - Yoshihiro Fujiya
- Disease Control and Prevention Center, National Center for Global Health and Medicine, Tokyo, Japan and
| | - Momoko Mawatari
- Disease Control and Prevention Center, National Center for Global Health and Medicine, Tokyo, Japan and
| | - Nozomi Takeshita
- Disease Control and Prevention Center, National Center for Global Health and Medicine, Tokyo, Japan and
| | - Kayoko Hayakawa
- Disease Control and Prevention Center, National Center for Global Health and Medicine, Tokyo, Japan and
| | - Shuzo Kanagawa
- Disease Control and Prevention Center, National Center for Global Health and Medicine, Tokyo, Japan and
| | - Yasuyuki Kato
- Disease Control and Prevention Center, National Center for Global Health and Medicine, Tokyo, Japan and
| | - Norio Ohmagari
- Disease Control and Prevention Center, National Center for Global Health and Medicine, Tokyo, Japan and
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43
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Takasaki T. [Zika virus -virus and laboratory diagnosis]. Uirusu 2016; 66:73-74. [PMID: 28484181 DOI: 10.2222/jsv.66.73] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
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44
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Kutsuna S, Kato Y, Moi ML, Kotaki A, Ota M, Shinohara K, Kobayashi T, Yamamoto K, Fujiya Y, Mawatari M, Sato T, Kunimatsu J, Takeshita N, Hayakawa K, Kanagawa S, Takasaki T, Ohmagari N. Autochthonous dengue fever, Tokyo, Japan, 2014. Emerg Infect Dis 2015; 21:517-20. [PMID: 25695200 DOI: 10.3201/eid2103/141662] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
After 70 years with no confirmed autochthonous cases of dengue fever in Japan, 19 cases were reported during August-September 2014. Dengue virus serotype 1 was detected in 18 patients. Phylogenetic analysis of the envelope protein genome sequence from 3 patients revealed 100% identity with the strain from the first patient (2014) in Japan.
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45
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Kutsuna S, Kato Y, Moi ML, Kotaki A, Ota M, Shinohara K, Kobayashi T, Yamamoto K, Fujiya Y, Mawatari M, Sato T, Kunimatsu J, Takeshita N, Hayakawa K, Kanagawa S, Takasaki T, Ohmagari N. Autochthonous dengue fever, Tokyo, Japan, 2014. Emerg Infect Dis 2015. [PMID: 25695200 PMCID: PMC4344289 DOI: 10.3201/eid2103.141662] [Citation(s) in RCA: 118] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
After 70 years with no confirmed autochthonous cases of dengue fever in Japan, 19 cases were reported during August–September 2014. Dengue virus serotype 1 was detected in 18 patients. Phylogenetic analysis of the envelope protein genome sequence from 3 patients revealed 100% identity with the strain from the first patient (2014) in Japan.
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46
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Ejiri H, Lim CK, Isawa H, Kuwata R, Kobayashi D, Yamaguchi Y, Takayama-Ito M, Kinoshita H, Kakiuchi S, Horiya M, Kotaki A, Takasaki T, Maeda K, Hayashi T, Sasaki T, Kobayashi M, Saijo M, Sawabe K. Genetic and biological characterization of Muko virus, a new distinct member of the species Great Island virus (genus Orbivirus, family Reoviridae), isolated from ixodid ticks in Japan. Arch Virol 2015; 160:2965-77. [PMID: 26350980 DOI: 10.1007/s00705-015-2588-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2015] [Accepted: 08/26/2015] [Indexed: 12/27/2022]
Abstract
Among the tick-borne orbiviruses (genus Orbivirus, family Reoviridae), 36 serotypes are currently classified within a single virus species, Great Island virus. In this study, we report the first characterization of a tick-borne orbivirus isolated from the tick Ixodes turdus in Japan, which we identified as a new member of the species Great Island virus. The virus isolate, designated Muko virus (MUV), replicated and induced cytopathic effects in BHK-21, Vero E6, and CCL-141 cells and caused high mortality in suckling mice after intracerebral inoculation. Full genome sequence analysis showed that MUV shared the greatest phylogenetic similarity with Tribeč virus in terms of the amino acid sequences of all viral proteins except for outer capsid protein 1 (OC1; VP4 of MUV). Analysis of genome segment 9 in MUV detected an uninterrupted open reading frame that overlaps with VP6 (Hel), which putatively encodes a molecular and functional equivalent of NS4 from Great Island virus. Our study provides new insights into the geographic distribution, genetic diversity, and evolutionary history of the members of the species Great Island virus.
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Affiliation(s)
- Hiroko Ejiri
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Chang-Kweng Lim
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuiku-ku, Tokyo, 162-8640, Japan
| | - Haruhiko Isawa
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan.
| | - Ryusei Kuwata
- Laboratory of Veterinary Microbiology, Faculty of Agriculture, Yamaguchi University, 1677-1 Yoshida, Yamaguchi, 753-8515, Japan
| | - Daisuke Kobayashi
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Yukie Yamaguchi
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuiku-ku, Tokyo, 162-8640, Japan
| | - Mutsuyo Takayama-Ito
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuiku-ku, Tokyo, 162-8640, Japan
| | - Hitomi Kinoshita
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuiku-ku, Tokyo, 162-8640, Japan
| | - Satsuki Kakiuchi
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuiku-ku, Tokyo, 162-8640, Japan
| | - Madoka Horiya
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuiku-ku, Tokyo, 162-8640, Japan
| | - Akira Kotaki
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuiku-ku, Tokyo, 162-8640, Japan
| | - Tomohiko Takasaki
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuiku-ku, Tokyo, 162-8640, Japan
| | - Ken Maeda
- Laboratory of Veterinary Microbiology, Faculty of Agriculture, Yamaguchi University, 1677-1 Yoshida, Yamaguchi, 753-8515, Japan
| | - Toshihiko Hayashi
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Toshinori Sasaki
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Mutsuo Kobayashi
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Masayuki Saijo
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuiku-ku, Tokyo, 162-8640, Japan
| | - Kyoko Sawabe
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan
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47
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Hayakawa K, Takasaki T, Tsunemine H, Kanagawa S, Kutsuna S, Takeshita N, Mawatari M, Fujiya Y, Yamamoto K, Ohmagari N, Kato Y. Persistent seropositivity for yellow fever in a previously vaccinated autologous hematopoietic stem cell transplantation recipient. Int J Infect Dis 2015; 37:9-10. [PMID: 26068870 DOI: 10.1016/j.ijid.2015.05.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Accepted: 05/25/2015] [Indexed: 11/16/2022] Open
Abstract
The duration of a protective level of yellow fever antibodies after autologous hematopoietic stem cell transplantation in a previously vaccinated person is unclear. The case of a patient who had previously been vaccinated for yellow fever and who remained seropositive for 22 months after autologous peripheral blood stem cell transplantation for malignant lymphoma is described herein.
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Affiliation(s)
- Kayoko Hayakawa
- Disease Control and Prevention Center, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo 162-8655, Japan.
| | - Tomohiko Takasaki
- Department of Virology 1, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | | | - Shuzo Kanagawa
- Disease Control and Prevention Center, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo 162-8655, Japan
| | - Satoshi Kutsuna
- Disease Control and Prevention Center, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo 162-8655, Japan
| | - Nozomi Takeshita
- Disease Control and Prevention Center, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo 162-8655, Japan
| | - Momoko Mawatari
- Disease Control and Prevention Center, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo 162-8655, Japan
| | - Yoshihiro Fujiya
- Disease Control and Prevention Center, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo 162-8655, Japan
| | - Kei Yamamoto
- Disease Control and Prevention Center, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo 162-8655, Japan
| | - Norio Ohmagari
- Disease Control and Prevention Center, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo 162-8655, Japan
| | - Yasuyuki Kato
- Disease Control and Prevention Center, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo 162-8655, Japan
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48
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Tajima S, Yagasaki K, Kotaki A, Tomikawa T, Nakayama E, Moi ML, Lim CK, Saijo M, Kurane I, Takasaki T. In vitro growth, pathogenicity and serological characteristics of the Japanese encephalitis virus genotype V Muar strain. J Gen Virol 2015; 96:2661-2669. [PMID: 26048886 DOI: 10.1099/vir.0.000213] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
The characteristics of genotype V Japanese encephalitis virus (GV JEV) remain poorly understood as only two strains have been isolated to date. In this study, we examined the effects of the GV JEV Muar strain on in vitro growth and pathogenicity in mice; we also evaluated the efficacy of inactivated JEV vaccines against the Muar strain. Although growth of the Muar strain in mouse neuroblastoma N18 cells was clearly worse than that of the GIII Beijing-1 and GI Mie/41/2002 strains, neuroinvasiveness of the Muar strain was similar to that of the Beijing-1 strain and significantly higher than that of the Mie/41/2002 strain. The results of a plaque reduction neutralization test suggested that the neutralization ability of the JEV vaccines against the Muar strain was reduced compared with the GI and GIII strains. However, the protection potency of the JEV vaccine against the Muar strain was similar to that for the Beijing-1 strain in mice. Our data indicate that GV JEV has unique growth, virulence and antigenicity features.
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Affiliation(s)
- Shigeru Tajima
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku, Tokyo 162-8640, Japan
| | - Kazumi Yagasaki
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku, Tokyo 162-8640, Japan
| | - Akira Kotaki
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku, Tokyo 162-8640, Japan
| | - Takumi Tomikawa
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku, Tokyo 162-8640, Japan
| | - Eri Nakayama
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku, Tokyo 162-8640, Japan
| | - Meng Ling Moi
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku, Tokyo 162-8640, Japan
| | - Chang-Kweng Lim
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku, Tokyo 162-8640, Japan
| | - Masayuki Saijo
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku, Tokyo 162-8640, Japan
| | - Ichiro Kurane
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku, Tokyo 162-8640, Japan
| | - Tomohiko Takasaki
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku, Tokyo 162-8640, Japan
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Saito Y, Moi ML, Kotaki A, Ikeda M, Tajima S, Shiba H, Hosono K, Saijo M, Kurane I, Takasaki T. Detecting Dengue Virus Nonstructural Protein 1 (NS1) in Urine Samples Using ELISA for the Diagnosis of Dengue Virus Infection. Jpn J Infect Dis 2015; 68:455-60. [PMID: 25766601 DOI: 10.7883/yoken.jjid.2014.441] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Dengue virus (DENV) infection is a serious global health threat. For the surveillance and control of dengue, there is a need for robust diagnostic tools that are relatively easy to use and reliable in various clinical settings. We investigated the applicability of NS1 antigen detection in urine samples for the diagnosis of DENV. About 118 urine samples, obtained from 96 dengue patients at various phases of disease, were used for this study. NS1 antigen was detected by ELISA in the urine samples obtained from patients after 2-17 days of disease onset. Positive detection rates of NS1 antigen ranged between 13-43%. Based on real-time RT-PCR, positive detection rates of viral genome in the urine samples ranged between 20-33% on days 0 to ≥15. On days 11 to ≥15 after the disease onset, NS1 antigen was detected at similar rates in serum and urine samples. Additionally, NS1 antigen was detected in 2 urine samples, but not in the serum samples, on days 7 and 16 after the onset of the disease. The results confirm the applicability of NS1 antigen detection in urine samples using ELISA to diagnose acute DENV infection and suggests that the assay is potentially useful when only limited amounts of serum samples are available and in limited resource settings.
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Affiliation(s)
- Yuka Saito
- Department of Virology 1, National Institute of Infectious Diseases
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Sasaki T, Higa Y, Bertuso AG, Isawa H, Takasaki T, Minakawa N, Sawabe K. Susceptibility of Indigenous and Transplanted Mosquito Spp. to Dengue Virus in Japan. Jpn J Infect Dis 2015; 68:425-7. [PMID: 25766611 DOI: 10.7883/yoken.jjid.2014.511] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Dengue fever, an acute, mosquito-borne, febrile illness caused by Flavivirus spp., is a problem in Africa, South and Southeast Asia, Latin America, and the Caribbean. A dengue outbreak occurred after nearly 70 years of absence or no detection, and then 158 autochthonous cases occurred in Japan from August to October 15, 2014. The most competent mosquito vectors for dengue virus transmission were Aedes aegypti and A. albopictus. Since A. albopictus is widely distributed across Japan and A. aegypti recently invaded Japan by airplane, we examined the susceptibility of these species to infection by dengue virus.
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Affiliation(s)
- Toshinori Sasaki
- Department of Medical Entomology, National Institute of Infectious Diseases
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