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Wang A, Tang Y, Pang Z, Gong Y, Wu J, Qi J, Niu G. Molecular evidence for potential transovarial transmission of Dabieshan tick virus in Haemaphysalis longicornis from Shandong Province, China. PLoS One 2023; 18:e0296213. [PMID: 38134039 PMCID: PMC10745148 DOI: 10.1371/journal.pone.0296213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Accepted: 12/04/2023] [Indexed: 12/24/2023] Open
Abstract
Dabieshan tick virus (DBTV) is a newly identified arbovirus, first detected in Haemaphysalis longicornis collected from Hubei Province in 2015. It has been confirmed that DBTV is widely distributed in Shandong Province, China. However, its entomological and epidemiological features remain to be further explored, particularly the feasibility of transovarial transmission. Our research tries to explain the possibility of transovarial transmission of DBTV from engorged female ticks to their offspring. All engorged female adult ticks were sampled from domestic sheep and allowed to lay eggs and hatch in appropriate laboratory conditions. All engorged ticks, larvae and unhatched eggs were classified into pools for nucleic acid extraction and DBTV RNA detection. According to the results of qRT-PCR, the positive rate of DBTV was 6.25% (8/128) in engorged female ticks, 3.57% (1/28) in eggs and 5% (3/60) in larvae pools, respectively. Phylogenetic analysis indicated that DBTV isolates from larvae were similar to those from maternal ticks with more than 99.5% homology, and DBTV was relatively conservative in evolution. Our findings are the first to provide molecular evidence of potential transovarial transmission of DBTV among H. longicornis. Nonetheless, the transovarial transmission of DBTV in frequency and proportion occurring in nature deserves further investigation.
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Affiliation(s)
- Anan Wang
- School of Public Health, WeiFang Medical University, Weifang, China
| | - Yunfeng Tang
- School of Public Health, WeiFang Medical University, Weifang, China
| | - Zheng Pang
- Tianjin Customs Port Out-Patient Department, Tianjin International Travel Healthcare Center, Tianjin, China
| | - Yaxuan Gong
- Yantai Zhifu District Center for Disease Control and Prevention, Yantai, China
| | - Jintao Wu
- Yantai Zhifu District Center for Disease Control and Prevention, Yantai, China
| | - Jun Qi
- Tianjin Customs Port Out-Patient Department, Tianjin International Travel Healthcare Center, Tianjin, China
| | - Guoyu Niu
- School of Public Health, WeiFang Medical University, Weifang, China
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2
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Zhang Y, Li Z, Pang Z, Wu Z, Lin Z, Niu G. Identification of Jingmen tick virus (JMTV) in Amblyomma testudinarium from Fujian Province, southeastern China. Parasit Vectors 2022; 15:339. [PMID: 36167570 PMCID: PMC9513871 DOI: 10.1186/s13071-022-05478-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 09/09/2022] [Indexed: 11/21/2022] Open
Abstract
Background Jingmen tick virus (JMTV) is a newly discovered tick-borne virus that can cause disease in humans. This virus has been authenticated as being extremely widespread worldwide and as posing a significant threat to public health and safety. Methods We collected 35 ticks belonging to two tick species from wild boars in Nanping, Fujian Province, China. JMTV-specific genes were amplified by qRT-PCR and nested PCR to confirm the presence of this pathogen. Results More than one third of of all ticks collected (11/35) were positive for JMTV. Viral sequences were obtained from three of the JMTV-positive ticks, including the complete genomic sequence from one tick. This was the first time that JMTV was identified in the hard-bodied tick Amblyomma testudinarium. Phylogenetic analysis revealed that JMTV from Fujian Province shared > 90% identity with other isolates derived from China, but was distinct from those reported in France and Cambodia. Conclusions JMTV is characterized by relatively low mutations and has its own local adaptive characteristics in different regions. Our findings provide molecular evidence of the presence of JMTV in an overlooked tick species from an area not unrecognized as being endemic. They also suggest that JMTV occupies a wider geographical distribution than currently believed and is a potential disease vector. Graphical abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s13071-022-05478-2.
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Affiliation(s)
- Yuli Zhang
- WeiFang Medical University, Weifang, 261053, China
| | - Zhenfeng Li
- Department of Public Health, Gaomi People's Hospital, Weifang, 261500, China
| | - Zheng Pang
- Tianjin International Joint Academy of Biomedicine, Tianjin, 300457, China
| | - Zhen Wu
- WeiFang Medical University, Weifang, 261053, China
| | - Zhijuan Lin
- WeiFang Medical University, Weifang, 261053, China.
| | - Guoyu Niu
- WeiFang Medical University, Weifang, 261053, China.
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Pang Z, Jin Y, Pan M, Zhang Y, Wu Z, Liu L, Niu G. Geographical distribution and phylogenetic analysis of Jingmen tick virus in China. iScience 2022; 25:105007. [PMID: 36097615 PMCID: PMC9463580 DOI: 10.1016/j.isci.2022.105007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 07/08/2022] [Accepted: 08/19/2022] [Indexed: 11/26/2022] Open
Abstract
Jingmen tick virus (JMTV) is a novel tick-borne segmented RNA virus that is closely related to un-segmental RNA virus in evolution. It has been confirmed that JMTV could be a causative agent of human disease. In this study, a total of 3658 ticks were sampled from 7 provinces of China and then divided into 545 pools according to the location and species. QRT-PCR and nested PCR were performed to confirm the presence of JMTV. The results showed JMTV was identified in 5 out of 7 provinces with an average infection rate of 1.4% (51/3658). Phylogenetic analysis indicated that all JMTV strains identified in this study were closely related to each other and formed a well-supported sub-lineage. Our results provide molecular evidence of JMTV in different species of ticks from endemic and non-endemic regions and demonstrate that JMTV, as a natural foci pathogen, may be widely distributed all over China. JMTV was first identified in unrecognized endemic regions of China Two complete genomes and 13 partial S1 segments of JMTV were sequenced and analyzed JMTV was relatively conservative in evolution JMTV was widely distributed in China as a potential health threat to humans and animals
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Luvai EAC, Uchida L, Tun MMN, Inoue S, Weiyin H, Shimoda H, Morita K, Hayasaka D. Seroepidemiological surveys of tick-borne encephalitis virus and novel tick-borne viruses in wild boar in Nagasaki, Japan. Ticks Tick Borne Dis 2021; 13:101860. [PMID: 34763307 DOI: 10.1016/j.ttbdis.2021.101860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 09/29/2021] [Accepted: 10/19/2021] [Indexed: 11/28/2022]
Abstract
In Japan, tick-borne viruses such as tick-borne encephalitis virus (TBEV) and severe fever with thrombocytopenia syndrome virus have been identified in humans, animals, and ticks. In addition, novel tick-borne viruses have been isolated from ticks in Japan. This study aimed to determine the seroprevalence of TBEV and novel viruses, particularly Tofla virus (TFLV), Kabuto Mountain virus (KAMV), and Muko virus (MUV) in wild boar in Nagasaki, Japan. Enzyme-linked immunosorbent assays and neutralization tests were performed to detect antibodies against each virus. Wild boar serum tested positive for antibodies against KAMV, TFLV, and TBEV, but not MUV. This study revealed the seroprevalence of newly identified tick-borne viruses and TBEV in animals residing in the Nagasaki area. The seroprevalence of these viruses in sentinel animals may inform policies aimed at preventing tick-borne virus disease outbreaks.
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Affiliation(s)
- Elizabeth Ajema Chebichi Luvai
- Department of Virology, Institute of Tropical Medicine, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, Nagasaki 852-8523, Japan
| | - Leo Uchida
- School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - Mya Myat Ngwe Tun
- Department of Virology, Institute of Tropical Medicine, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, Nagasaki 852-8523, Japan
| | - Shingo Inoue
- Department of Virology, Institute of Tropical Medicine, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, Nagasaki 852-8523, Japan
| | - Hu Weiyin
- Laboratory of veterinary Microbiology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi, Yamaguchi 753-8511, Japan
| | - Hiroshi Shimoda
- Laboratory of veterinary Microbiology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi, Yamaguchi 753-8511, Japan
| | - Kouichi Morita
- School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - Daisuke Hayasaka
- Laboratory of veterinary Microbiology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi, Yamaguchi 753-8511, Japan.
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Amoa-Bosompem M, Kobayashi D, Faizah AN, Kimura S, Antwi A, Agbosu E, Pratt D, Ohashi M, Bonney JHK, Dadzie S, Ejiri H, Ohta N, Sawabe K, Iwanaga S, Isawa H. Screening for tick-borne and tick-associated viruses in ticks collected in Ghana. Arch Virol 2021; 167:123-130. [PMID: 34757503 DOI: 10.1007/s00705-021-05296-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 10/01/2021] [Indexed: 10/19/2022]
Abstract
Ticks are blood-sucking arthropods that transmit many pathogens, including arboviruses. Arboviruses transmitted by ticks are generally referred to as tick-borne viruses (TBVs). TBVs are known to cause diseases in humans, pets, and livestock. There is, however, very limited information on the occurrence and distribution of TBVs in sub-Saharan Africa. This study was designed to determine the presence and distribution of ticks infesting dogs and cattle in Ghana, as well as to identify the tick-borne or tick-associated viruses they harbour. A more diverse population of ticks was found to infest cattle (three genera) relative to those infesting dogs (one genus). Six phleboviruses and an orthonairovirus were detected in tick pools screened by RT-PCR. Subsequent sequence analysis revealed two distinct phleboviruses and the previously reported Odaw virus in ticks collected from dogs and a virus (16GH-T27) most closely related to four unclassified phleboviruses in ticks collected from cattle. The virus 16GH-T27 was considered a strain of Balambala tick virus (BTV) and named BTV strain 16GH-T27. Next-generation sequencing analysis of the BTV-positive tick pool detected only the L and S segments. Phylogenetic analysis revealed that BTV clustered with viruses previously defined as M-segment-deficient phleboviruses. The orthonairovirus detected in ticks collected from cattle was confirmed to be the medically important Dugbe virus. Furthermore, we discuss the importance of understanding the presence and distribution of ticks and TBVs in disease prevention and mitigation and the implications for public health. Our findings contribute to the knowledge pool on TBVs and tick-associated viruses.
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Affiliation(s)
- Michael Amoa-Bosompem
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan.,Laboratory of Sanitary Entomology, Faculty of Agriculture, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan.,Department of Parasitology, Noguchi Memorial Institute for Medical Research, University of Ghana, College of Health Sciences, P.O. Box LG581, Legon, Accra, Ghana.,Department of Biomedical and Diagnostic Sciences, School of Veterinary Medicine, University of Tennessee, 2407 River Drive, Knoxville, TN, 37996, USA
| | - Daisuke Kobayashi
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Astri Nur Faizah
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan.,Graduate School of Agricultural and Life Science, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Shohei Kimura
- Department of Environmental Parasitology, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Ama Antwi
- Department of Parasitology, Noguchi Memorial Institute for Medical Research, University of Ghana, College of Health Sciences, P.O. Box LG581, Legon, Accra, Ghana
| | - Esinam Agbosu
- Department of Virology, Noguchi Memorial Institute for Medical Research, University of Ghana, College of Health Sciences, P.O. Box LG581, Legon, Accra, Ghana
| | - Deborah Pratt
- Department of Virology, Noguchi Memorial Institute for Medical Research, University of Ghana, College of Health Sciences, P.O. Box LG581, Legon, Accra, Ghana
| | - Mitsuko Ohashi
- Department of Parasitology, Noguchi Memorial Institute for Medical Research, University of Ghana, College of Health Sciences, P.O. Box LG581, Legon, Accra, Ghana.,Department of Environmental Parasitology, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Joseph H Kofi Bonney
- Department of Virology, Noguchi Memorial Institute for Medical Research, University of Ghana, College of Health Sciences, P.O. Box LG581, Legon, Accra, Ghana
| | - Samuel Dadzie
- Department of Parasitology, Noguchi Memorial Institute for Medical Research, University of Ghana, College of Health Sciences, P.O. Box LG581, Legon, Accra, Ghana
| | - Hiroko Ejiri
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Nobuo Ohta
- Faculty of Health Science, Suzuka University of Medical Science, 1001-1 Kishioka-cyo, Suzuka-shi, Mie, 510-0293, Japan
| | - Kyoko Sawabe
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Shiroh Iwanaga
- Department of Environmental Parasitology, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan.,Research Institute for Microbial Diseases, 3-1 Yamadaoka, Osaka, 565-0871, Suita, Japan
| | - Haruhiko Isawa
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan.
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Wang A, Pang Z, Liu L, Ma Q, Han Y, Guan Z, Qin H, Niu G. Detection and Phylogenetic Analysis of a Novel Tick-Borne Virus in Yunnan and Guizhou Provinces, Southwestern China. Pathogens 2021; 10:pathogens10091143. [PMID: 34578175 PMCID: PMC8465720 DOI: 10.3390/pathogens10091143] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 08/29/2021] [Accepted: 08/30/2021] [Indexed: 11/16/2022] Open
Abstract
Dabieshan tick virus (DTV) is a novel tick-borne virus with the potential to infect both animals and humans. It has been confirmed that DTV is widely distributed in Shandong and Zhejiang Provinces. In this study, a total of 389 ticks were sampled from Honghe city of Yunnan Province and Bijie city of Guizhou Province, and then divided into 148 pools according to the location and species. QRT-PCR and nested PCR were performed to confirm the presence of DTV. The results showed a minimum infection rate of 2.43% (5/206) in Yunnan Province and 3.28% (6/183) in Guizhou Province, respectively. Interestingly, DTV was identified in Rhipicephalusmicroplus for the first time besides Haemaphysalis longicornis. Phylogenetic analysis showed that DTV from Yunnan and Guizhou Provinces shared over 94% identity with isolates derived from Hubei and Shandong Provinces, and DTV was relatively conservative in evolutionary dynamics. These findings provide molecular evidence of Dabieshan tick virus in different species of ticks from unrecognized endemic regions and suggest that DTV may be widely prevalent in southwestern China.
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Affiliation(s)
- Anan Wang
- Key Laboratory of Health Inspection and Quarantine, School of Public Health, Weifang Medical University, Weifang 261053, China; (A.W.); (Q.M.); (Y.H.); (Z.G.)
| | - Zheng Pang
- Infectious Disease Drug Discovery Institute, Tianjin International Joint Academy of Biomedicine, Tianjin 300457, China;
| | - Lin Liu
- Immune-Path Biotechnology (Suzhou) Co., Ltd., Suzhou 215000, China;
| | - Qianwen Ma
- Key Laboratory of Health Inspection and Quarantine, School of Public Health, Weifang Medical University, Weifang 261053, China; (A.W.); (Q.M.); (Y.H.); (Z.G.)
| | - Yize Han
- Key Laboratory of Health Inspection and Quarantine, School of Public Health, Weifang Medical University, Weifang 261053, China; (A.W.); (Q.M.); (Y.H.); (Z.G.)
| | - Zhijie Guan
- Key Laboratory of Health Inspection and Quarantine, School of Public Health, Weifang Medical University, Weifang 261053, China; (A.W.); (Q.M.); (Y.H.); (Z.G.)
| | - Hao Qin
- Key Laboratory of Health Inspection and Quarantine, School of Public Health, Weifang Medical University, Weifang 261053, China; (A.W.); (Q.M.); (Y.H.); (Z.G.)
- Correspondence: (H.Q.); (G.N.)
| | - Guoyu Niu
- Key Laboratory of Health Inspection and Quarantine, School of Public Health, Weifang Medical University, Weifang 261053, China; (A.W.); (Q.M.); (Y.H.); (Z.G.)
- Correspondence: (H.Q.); (G.N.)
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Toyo virus, a novel member of the Kaisodi group in the genus Uukuvirus (family Phenuiviridae) found in Haemaphysalis formosensis ticks in Japan. Arch Virol 2021; 166:2751-2762. [PMID: 34341873 DOI: 10.1007/s00705-021-05193-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 06/08/2021] [Indexed: 10/20/2022]
Abstract
Ticks are important vector arthropods that transmit various pathogens to humans and other animals. Tick-borne viruses are of particular concern to public health as these are major agents of emerging and re-emerging infectious diseases. The Phenuiviridae family of tick-borne viruses is one of the most diverse groups and includes important human pathogenic viruses such as severe fever with thrombocytopenia syndrome virus. Phenuivirus-like sequences were detected during the surveillance of tick-borne viruses using RNA virome analysis from a pooled sample of Haemaphysalis formosensis ticks collected in Ehime, Japan. RT-PCR amplification and Sanger sequencing revealed the nearly complete viral genome sequence of all three segments. Comparisons of the viral amino acid sequences among phenuiviruses indicated that the detected virus shared 46%-70% sequence identity with known members of the Kaisodi group in the genus Uukuvirus. Furthermore, phylogenetic analysis of the viral proteins showed that the virus formed a cluster with the Kaisodi group viruses, suggesting that this was a novel virus, which was designated "Toyo virus" (TOYOV). Further investigation of TOYOV is needed, and it will contribute to understanding the natural history and the etiological importance of the Kaisodi group viruses.
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8
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Identification of recently identified tick-borne viruses (Dabieshan tick virus and SFTSV) by metagenomic analysis in ticks from Shandong Province, China. J Infect 2020; 81:973-978. [PMID: 33115659 DOI: 10.1016/j.jinf.2020.10.022] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 09/30/2020] [Accepted: 10/23/2020] [Indexed: 11/24/2022]
Abstract
The aim of this study is to systematically examine the variety of viruses maintained in ticks from Shandong Province. A total of 2522 ticks were sampled from five cities of Shandong Province and divided into 264 pools according to location and species. Viral megagenomic analysis revealed the sequences of two viruses, Dabieshan tick virus and SFTSV. Then qRT-PCR and nested PCR were performed to confirm the presence of corresponding pathogens, which showed positive results for Dabieshan tick virus and SFTSV, with a minimum infection rate of 0.67% (17/2522) and 2.5% (63/2522), respectively. Phylogenetic analysis showed that Dabieshan tick virus formed a monophyletic cluster with the Yongjia tick virus and Uukuniemi virus from China, and SFTSV shared over 95% identity with human and animal derived isolates. These findings are the first time to demonstrate molecular evidence of Dabieshan tick virus in unrecognized endemic regions and indicate the need for further investigation.
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9
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Kobayashi D, Murota K, Itokawa K, Ejiri H, Amoa-Bosompem M, Faizah AN, Watanabe M, Maekawa Y, Hayashi T, Noda S, Yamauchi T, Komagata O, Sawabe K, Isawa H. RNA virome analysis of questing ticks from Hokuriku District, Japan, and the evolutionary dynamics of tick-borne phleboviruses. Ticks Tick Borne Dis 2019; 11:101364. [PMID: 31928929 DOI: 10.1016/j.ttbdis.2019.101364] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 12/13/2019] [Accepted: 12/21/2019] [Indexed: 01/23/2023]
Abstract
Tick-borne viruses have emerged recently in many parts of the world, and the discoveries of novel tick-borne viruses have been accelerated by the development of high-throughput sequencing technology. In this study, a cost-efficient small benchtop next-generation sequencer, the Illumina MiniSeq, was used for the RNA virome analysis of questing ticks collected from Hokuriku District, Japan, and assessed for their potential utility in a tick-borne virus surveillance system. We detected two phleboviruses [Kabuto Mountain virus (KAMV) and Okutama tick virus (OKTV)], a coltivirus [Tarumizu tick virus (TarTV)], and a novel iflavirus [Hamaphysalis flava iflavirus (HfIFV)] from tick homogenates and/or cell culture supernatants after virus isolation processes. The number of sequence reads from KAMV and TarTV markedly increased when cell culture supernatants were used, indicating a successful isolation of these viruses. In contrast, OKTV and HfIFV were detected only in tick homogenates but not from cell culture supernatants, suggesting a failure to isolate these viruses. Furthermore, we performed genomic and phylogenetic analyzes of these detected viruses. OKTV and some phleboviruses discovered recently by NGS-based methods were probably deficient in the M genome segment, which are herein proposed as M segment-deficient phlebovirus (MdPV). A phylogenetic analysis of phleboviruses, including MdPV, suggested that Uukuniemi and Kaisodi group viruses and kabutoviruses evolved from an ancestral MdPV, which provides insights into the evolutionary dynamics of phleboviruses as emerging pathogens.
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Affiliation(s)
- Daisuke Kobayashi
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan; Department of Research Promotion, Japan Agency for Medical Research and Development, 20F Yomiuri Shimbun Bldg. 1-7-1 Otemachi, Chiyoda-ku, Tokyo 100-0004, Japan
| | - Katsunori Murota
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan; Kyushu Research Station, National Institute of Animal Health, NARO, 2702 Chuzan, Kagoshima 891-0105, Japan
| | - Kentaro Itokawa
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan; Pathogen genomics center, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Hiroko Ejiri
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan; Division of infectious Diseases Epidemiology and Control, National Defense Medical Research Institute, National Defense Medical College, 3-2 Namiki, Tokorozawa, Saitama 359-8513, Japan
| | - Michael Amoa-Bosompem
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Astri Nur Faizah
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Mamoru Watanabe
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Yoshihide Maekawa
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Toshihiko Hayashi
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Shinichi Noda
- Research Center for the Pacific Islands, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-8580, Japan
| | - Takeo Yamauchi
- Laboratory of Entomology, Obihiro University of Agriculture and Veterinary Medicine, Inada-cho, Obihiro, Hokkaido 080-8555, Japan
| | - Osamu Komagata
- 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
| | - Haruhiko Isawa
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan.
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10
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Safonova MV, Gmyl AP, Lukashev AN, Speranskaya AS, Neverov AD, Fedonin GG, Pimkina EV, Matsvay AD, Khafizov KF, Karganova GG, Kozlovskaya LI, Valdokhina AV, Bulanenko VP, Dedkov VG. Genetic diversity of Kemerovo virus and phylogenetic relationships within the Great Island virus genetic group. Ticks Tick Borne Dis 2019; 11:101333. [PMID: 31787560 DOI: 10.1016/j.ttbdis.2019.101333] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 10/29/2019] [Accepted: 11/15/2019] [Indexed: 11/27/2022]
Abstract
Kemerovo virus (KEMV) is a member of the Great Island virus genetic group, belonging to the tick-borne arboviruses of the genus Orbivirus within the family Reoviridae. Nine strains of KEMV, which were isolated from various locations in Russia, were sequenced by high-throughput sequencing to study their intraspecific diversity and the interspecific relationships of viruses within the Great Island genetic group. For the first time, multiple reassortment within KEMV was reliably demonstrated. Different types of independently emerged alternative reading frames in segment 9 and heterogeneity of the viral population in one of the KEMV strains were found. The hypothesis of the role of an alternative open reading frame (ORF) in segment 9 in KEMV cellular tropism was not confirmed in this study.
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Affiliation(s)
- Marina V Safonova
- Plague Control Center, Federal Service on Consumers' Rights Protection and Human Well-Being Surveillance, Moscow, Russia.
| | - Anatoly P Gmyl
- Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of Russian Academy of Sciences, Moscow, Russia; Sechenov First Moscow State Medical University, Moscow, Russia
| | - Alexander N Lukashev
- Martsinovsky Institute of Medical Parasitology, Tropical and Vector Borne Diseases, Sechenov First Moscow State Medical University, Moscow, Russia
| | - Anna S Speranskaya
- Central Research Institute for Epidemiology, Federal Service on Consumers' Rights Protection and Human Well-Being Surveillance, Moscow, Russia
| | - Alexey D Neverov
- Central Research Institute for Epidemiology, Federal Service on Consumers' Rights Protection and Human Well-Being Surveillance, Moscow, Russia
| | - Gennady G Fedonin
- Central Research Institute for Epidemiology, Federal Service on Consumers' Rights Protection and Human Well-Being Surveillance, Moscow, Russia
| | - Ekaterina V Pimkina
- Central Research Institute for Epidemiology, Federal Service on Consumers' Rights Protection and Human Well-Being Surveillance, Moscow, Russia
| | - Alina D Matsvay
- Central Research Institute for Epidemiology, Federal Service on Consumers' Rights Protection and Human Well-Being Surveillance, Moscow, Russia
| | - Kamil F Khafizov
- Central Research Institute for Epidemiology, Federal Service on Consumers' Rights Protection and Human Well-Being Surveillance, Moscow, Russia
| | - Galina G Karganova
- Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of Russian Academy of Sciences, Moscow, Russia; Sechenov First Moscow State Medical University, Moscow, Russia
| | - Lubov I Kozlovskaya
- Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of Russian Academy of Sciences, Moscow, Russia; Sechenov First Moscow State Medical University, Moscow, Russia
| | - Anna V Valdokhina
- Central Research Institute for Epidemiology, Federal Service on Consumers' Rights Protection and Human Well-Being Surveillance, Moscow, Russia
| | - Victoria P Bulanenko
- Central Research Institute for Epidemiology, Federal Service on Consumers' Rights Protection and Human Well-Being Surveillance, Moscow, Russia
| | - Vladimir G Dedkov
- Martsinovsky Institute of Medical Parasitology, Tropical and Vector Borne Diseases, Sechenov First Moscow State Medical University, Moscow, Russia; Saint-Petersburg Pasteur Institute, Federal Service on Consumers' Rights Protection and Human Well-Being Surveillance, Saint-Petersburg, Russia
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11
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Kato T, Aizawa M, Takayoshi K, Yanase T, Tanaka S, Shirafuji H, Yamakawa M. Full genome sequence of a Sathuvachari virus strain isolated in the southwestern-most archipelago of Japan. Virus Genes 2018; 54:729-732. [DOI: 10.1007/s11262-018-1592-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 07/28/2018] [Indexed: 02/03/2023]
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12
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Ejiri H, Lim CK, Isawa H, Fujita R, Murota K, Sato T, Kobayashi D, Kan M, Hattori M, Kimura T, Yamaguchi Y, Takayama-Ito M, Horiya M, Posadas-Herrera G, Minami S, Kuwata R, Shimoda H, Maeda K, Katayama Y, Mizutani T, Saijo M, Kaku K, Shinomiya H, Sawabe K. Characterization of a novel thogotovirus isolated from Amblyomma testudinarium ticks in Ehime, Japan: A significant phylogenetic relationship to Bourbon virus. Virus Res 2018; 249:57-65. [PMID: 29548745 DOI: 10.1016/j.virusres.2018.03.004] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 03/07/2018] [Accepted: 03/07/2018] [Indexed: 10/17/2022]
Abstract
The genus Thogotovirus, as represented by Thogoto virus and Dhori virus, comprises a group of arthropod-borne viruses, most members of which are transmitted by ticks. Here we report the genetic and biological characterization of a new thogotovirus, designated Oz virus (OZV), isolated from the hard tick Amblyomma testudinarium in Ehime, Japan. OZV efficiently replicated and induced a cytopathic effect in Vero cells, from which enveloped pleomorphic virus particles were formed by budding. OZV could also replicate in BHK-21 and DH82 cells and caused high mortality in suckling mice after intracerebral inoculation. Phylogenetic analyses of six viral proteins indicated that OZV is clustered with Dhori and related viruses, and is most closely related in glycoprotein (GP) and matrix protein (M) sequences to Bourbon virus, a human-pathogenic thogotovirus discovered recently in the United States. Our findings emphasize the need for understanding the geographic distribution and ecology of OZV and related viruses and for reevaluation of the medical and public health importance of thogotoviruses.
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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; Division of infectious Diseases Epidemiology and Control, National Defense Medical Research Institute, National Defense Medical College, 3-2 Namiki, Tokorozawa, Saitama 359-8513, Japan
| | - Chang-Kweng Lim
- Department of Virology I, 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.
| | - Ryosuke Fujita
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan; Department of Research Promotion, Japan Agency for Medical Research and Development, 20F Yomiuri Shimbun Bldg. 1-7-1 Otemachi, Chiyoda-ku, Tokyo 100-0004, Japan; Isotope Imaging Laboratory, Creative Research Institution, Hokkaido University, Kita 21 Nishi 10, Kita-ku, Sapporo 001-0021, Japan
| | - Katsunori Murota
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan; Department of Research Promotion, Japan Agency for Medical Research and Development, 20F Yomiuri Shimbun Bldg. 1-7-1 Otemachi, Chiyoda-ku, Tokyo 100-0004, Japan
| | - Tomomi Sato
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Daisuke Kobayashi
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Miki Kan
- Ehime Prefectural Institute of Public Health and Environmental Science, 8-234 Sanban-cho, Matsuyama, Ehime 790-0003, Japan
| | - Masashi Hattori
- Ehime Prefectural Institute of Public Health and Environmental Science, 8-234 Sanban-cho, Matsuyama, Ehime 790-0003, Japan
| | - Toshiya Kimura
- Ehime Prefectural Institute of Public Health and Environmental Science, 8-234 Sanban-cho, Matsuyama, Ehime 790-0003, Japan
| | - Yukie Yamaguchi
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Mutsuyo Takayama-Ito
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Madoka Horiya
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Guillermo Posadas-Herrera
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Shohei Minami
- Laboratory of Veterinary Microbiology, Faculty of Agriculture, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan
| | - Ryusei Kuwata
- Laboratory of Veterinary Microbiology, Faculty of Agriculture, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan
| | - Hiroshi Shimoda
- Laboratory of Veterinary Microbiology, Faculty of Agriculture, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan
| | - Ken Maeda
- Laboratory of Veterinary Microbiology, Faculty of Agriculture, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan
| | - Yukie Katayama
- Research and Education Center for Prevention of Global Infectious Disease of Animal, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-8509, Japan
| | - Tetsuya Mizutani
- Research and Education Center for Prevention of Global Infectious Disease of Animal, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-8509, Japan
| | - Masayuki Saijo
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Koki Kaku
- Division of infectious Diseases Epidemiology and Control, National Defense Medical Research Institute, National Defense Medical College, 3-2 Namiki, Tokorozawa, Saitama 359-8513, Japan
| | - Hiroto Shinomiya
- Ehime Prefectural Institute of Public Health and Environmental Science, 8-234 Sanban-cho, Matsuyama, Ehime 790-0003, Japan
| | - Kyoko Sawabe
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan; Department of Agricultural and Environmental Biology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo 113-8657, Japan.
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13
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Fujita R, Ejiri H, Lim CK, Noda S, Yamauchi T, Watanabe M, Kobayashi D, Takayama-Ito M, Murota K, Posadas-Herrera G, Minami S, Kuwata R, Yamaguchi Y, Horiya M, Katayama Y, Shimoda H, Saijo M, Maeda K, Mizutani T, Isawa H, Sawabe K. Isolation and characterization of Tarumizu tick virus: A new coltivirus from Haemaphysalis flava ticks in Japan. Virus Res 2017; 242:131-140. [PMID: 28964878 DOI: 10.1016/j.virusres.2017.09.017] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Revised: 09/25/2017] [Accepted: 09/25/2017] [Indexed: 10/18/2022]
Abstract
During the course of tick-borne virus surveillance in Japan, three independent isolates of probably the same virus were obtained from three geographically distant populations of the hard tick Haemaphysalis flava. Genome analyses of the three isolates demonstrated that they were closely related but distinct strains of a novel virus, designated Tarumizu tick virus (TarTV), which has a genome of 12 double-stranded RNA segments. The development of the virus-induced cytopathic effects on BHK cells significantly varied according to virus strains. Ten out of 12 segments of TarTV appeared to encode putative orthologs or functional equivalents of viral proteins of Colorado tick fever virus (CTFV) and Eyach virus, suggesting that TarTV is the third member of the genus Coltivirus in the family Reoviridae. This was supported by the facts that the 5'- and 3'-terminal consensus sequences of coltivirus genomes were found also in TarTV genome, and segment 9 of TarTV had sequence and structural features that may mediate a stop codon read-through as observed in that of CTFV. However, segment 7 and 10 of TarTV had no significant sequence similarities to any other proteins of known coltiviruses. Electron microscopic analysis demonstrated that TarTV particle had a non-enveloped bilayer icosahedral structure, and viral inclusion bodies were formed in infected cells. TarTV could infect and replicate in several mammalian cell lines tested, but show no clinical symptoms in intracerebrally inoculated mice. Taken together, our findings provide new insights into genetic diversity and evolution of the genus Coltivirus.
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Affiliation(s)
- Ryosuke Fujita
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan; Department of Research Promotion, Japan Agency for Medical Research and Development, 20F Yomiuri Shimbun Bldg. 1-7-1 Otemachi, Chiyoda-ku, Tokyo 100-0004, Japan; Isotope Imaging Laboratory, Creative Research Institution, Kita 21 Nishi 10, Kita-ku, Sapporo 001-0021, Japan
| | - Hiroko Ejiri
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan; Division of Infectious Diseases Epidemiology and Control, National Defense Medical Research Institute, National Defense Medical College, 3-2 Namiki, Tokorozawa, Saitama 359-8513, Japan
| | - Chang-Kweng Lim
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Shinichi Noda
- Research Center for the Pacific Islands, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-8580, Japan
| | - Takeo Yamauchi
- Institute of National and Environmental Science, University of Hyogo/Museum of Nature and Human activities, Hyogo, Yayoigaoka 6, Sanda, Hyogo 669-1546, Japan
| | - Mamoru Watanabe
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Daisuke Kobayashi
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Mutsuyo Takayama-Ito
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Katsunori Murota
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan; Department of Research Promotion, Japan Agency for Medical Research and Development, 20F Yomiuri Shimbun Bldg. 1-7-1 Otemachi, Chiyoda-ku, Tokyo 100-0004, Japan
| | - Guillermo Posadas-Herrera
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Shohei Minami
- Laboratory of Veterinary Microbiology, Faculty of Agriculture, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan
| | - Ryusei Kuwata
- Laboratory of Veterinary Microbiology, Faculty of Agriculture, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan
| | - Yukie Yamaguchi
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Madoka Horiya
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Yukie Katayama
- Research and Education Center for Prevention of Global Infectious Disease of Animal, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-8509, Japan
| | - Hiroshi Shimoda
- Laboratory of Veterinary Microbiology, Faculty of Agriculture, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan
| | - Masayuki Saijo
- Department of Virology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Ken Maeda
- Laboratory of Veterinary Microbiology, Faculty of Agriculture, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan
| | - Tetsuya Mizutani
- Research and Education Center for Prevention of Global Infectious Disease of Animal, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-8509, 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; Department of Agricultural and Environmental Biology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo 113-8657, Japan.
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14
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Kobayashi D, Ohashi M, Osei JHN, Agbosu E, Opoku M, Agbekudzi A, Joannides J, Fujita R, Sasaki T, Bonney JHK, Dadzie S, Isawa H, Sawabe K, Ohta N. Detection of a novel putative phlebovirus and first isolation of Dugbe virus from ticks in Accra, Ghana. Ticks Tick Borne Dis 2017; 8:640-645. [PMID: 28479064 DOI: 10.1016/j.ttbdis.2017.04.010] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 03/07/2017] [Accepted: 04/14/2017] [Indexed: 11/29/2022]
Abstract
Ticks are ectoparasites that transmit various types of human and animal pathogens. In particular, emerging and re-emerging diseases caused by tick-borne viruses are public health concerns around the world. However, in many countries of the sub-Saharan African region, epidemiological information on tick-borne viral infections is limited, and their prevalence and distribution remain largely unknown. In this study, we conducted surveillance on ticks to detect medically important tick-borne bunyaviruses in three study sites in and near to Accra, the capital city of Ghana, in 2015. Domestic dogs and cattle were surveyed and were found to be infested with various tick species belonging to the genera Rhipicephalus, Amblyomma and Haemaphysalis. Importantly, we detected a novel putative phlebovirus in Rhipicephalus ticks, and successfully isolated a new strain of Dugbe virus from Am. variegatum ticks. To our knowledge, this is the first report of tick-associated viruses in Ghana other than Crimean-Congo hemorrhagic fever virus.
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Affiliation(s)
- Daisuke Kobayashi
- Department of Environmental Parasitology, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-0034, Japan; Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Mitsuko Ohashi
- Department of Environmental Parasitology, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-0034, Japan
| | - Joseph H N Osei
- Department of Parasitology, Noguchi Memorial Institute for Medical Research, University of Ghana, P.O. Box LG 581, Legon, Accra, Ghana
| | - Esinam Agbosu
- Department of Virology, Noguchi Memorial Institute for Medical Research, University of Ghana, P.O. Box LG 581, Legon, Accra, Ghana
| | - Millicent Opoku
- Department of Parasitology, Noguchi Memorial Institute for Medical Research, University of Ghana, P.O. Box LG 581, Legon, Accra, Ghana
| | - Alfred Agbekudzi
- Department of Parasitology, Noguchi Memorial Institute for Medical Research, University of Ghana, P.O. Box LG 581, Legon, Accra, Ghana
| | - Joannitta Joannides
- Department of Parasitology, Noguchi Memorial Institute for Medical Research, University of Ghana, P.O. Box LG 581, Legon, Accra, Ghana
| | - Ryosuke Fujita
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan; Japan Agency for Medical Research and Development, 1-7-1 Ote-machi, Chiyoda-ku, Tokyo 100-0004, Japan
| | - Toshinori Sasaki
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - J H Kofi Bonney
- Department of Virology, Noguchi Memorial Institute for Medical Research, University of Ghana, P.O. Box LG 581, Legon, Accra, Ghana
| | - Samuel Dadzie
- Department of Parasitology, Noguchi Memorial Institute for Medical Research, University of Ghana, P.O. Box LG 581, Legon, Accra, Ghana
| | - 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
| | - Nobuo Ohta
- Department of Environmental Parasitology, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-0034, Japan
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15
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Ulanday GEL, Shimada S, Myat NTM, Nabeshima T, Morita K, Hayasaka D. Pathogenic potential and growth kinetics of Muko virus in mice and human-derived cells. Trop Med Health 2016; 44:31. [PMID: 27777508 PMCID: PMC5057483 DOI: 10.1186/s41182-016-0032-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Accepted: 08/17/2016] [Indexed: 11/22/2022] Open
Abstract
Background Ticks have been long known as vectors of various pathogens, some of which can cause high fatality rates among infected individuals. Our enhanced tick surveillance around Nagasaki, Japan, led to the isolation and identification of a new strain of a recently identified Orbivirus, Muko virus (MUV). The orbiviruses have a wide host range, including humans, and is related to a spectrum of clinical outcomes. However, the zoonotic potential of some members of the genus, although reported, were not clearly elucidated. Hence, it is imperative to characterize newly isolated orbiviruses and investigate its ability to endanger public health. Methods In this study, we explored the in vivo pathogenicity of a newly isolated MUV strain (MUV-Hay) using a mouse model and demonstrated its growth kinetics in human-derived cells. Results Our results showed the ability of MUV-Hay to propagate in human neuronal and renal cells with some cytopathic effect. Furthermore, intracerebral inoculation of our new isolate caused high mortality in adult A129 mice. Conclusion Our study provided a first step to experimentally test the hypothesis, that MUV can replicate and produce cytopathic effect in human cells and demonstrate virulence in adult mice.
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Affiliation(s)
- Gianne Eduard L Ulanday
- Department of Virology, Institute of Tropical Medicine (NEKKEN), 1-12-4 Sakamoto, Nagasaki, 852-8523 Japan
| | - Satoshi Shimada
- Department of Virology, Institute of Tropical Medicine (NEKKEN), 1-12-4 Sakamoto, Nagasaki, 852-8523 Japan ; Leading Graduate School Program, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523 Japan
| | - Ngwe Tun Mya Myat
- Department of Virology, Institute of Tropical Medicine (NEKKEN), 1-12-4 Sakamoto, Nagasaki, 852-8523 Japan
| | - Takeshi Nabeshima
- Department of Virology, Institute of Tropical Medicine (NEKKEN), 1-12-4 Sakamoto, Nagasaki, 852-8523 Japan
| | - Kouichi Morita
- Department of Virology, Institute of Tropical Medicine (NEKKEN), 1-12-4 Sakamoto, Nagasaki, 852-8523 Japan ; Leading Graduate School Program, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523 Japan
| | - Daisuke Hayasaka
- Department of Virology, Institute of Tropical Medicine (NEKKEN), 1-12-4 Sakamoto, Nagasaki, 852-8523 Japan ; Leading Graduate School Program, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523 Japan
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16
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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] [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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