1
|
Ichikawa A, Katayama M, Lai H, Wataru S, Takenaka-Uema A, Horimoto T, Murakami S. Isolation and genetic characterization of a mammalian orthoreovirus from Vespertilio sinensis in Japan. Arch Virol 2023; 168:165. [PMID: 37210458 DOI: 10.1007/s00705-023-05782-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 04/11/2023] [Indexed: 05/22/2023]
Abstract
Throughout East Asia, Europe, and North America, mammalian orthoreovirus (MRV), for which bats have been proposed to be natural reservoirs, has been detected in a variety of domestic and wild mammals, as well as in humans. Here, we isolated a novel MRV strain (designated as Kj22-33) from a fecal sample from Vespertilio sinensis bats in Japan. Strain Kj22-33 has a 10-segmented genome with a total length of 23,580 base pairs. Phylogenetic analysis indicated that Kj22-33 is a serotype 2 strain, the segmented genome of which has undergone reassortment with that of other MRV strains.
Collapse
Affiliation(s)
- Ayano Ichikawa
- Laboratory of Veterinary Microbiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Misa Katayama
- Laboratory of Veterinary Microbiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Hayden Lai
- Laboratory of Veterinary Microbiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Sekine Wataru
- Laboratory of Veterinary Microbiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Akiko Takenaka-Uema
- Laboratory of Veterinary Microbiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Taisuke Horimoto
- Laboratory of Veterinary Microbiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Shin Murakami
- Laboratory of Veterinary Microbiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan.
| |
Collapse
|
2
|
Feng KH, Brown JD, Turner GG, Holmes EC, Allison AB. Unrecognized diversity of mammalian orthoreoviruses in North American bats. Virology 2022; 571:1-11. [DOI: 10.1016/j.virol.2022.03.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 03/29/2022] [Accepted: 03/29/2022] [Indexed: 10/18/2022]
|
3
|
Kitamura K, Takagi H, Oka T, Kataoka M, Ueki Y, Sakagami A. Intertypic reassortment of mammalian orthoreovirus identified in wastewater in Japan. Sci Rep 2021; 11:12583. [PMID: 34131201 PMCID: PMC8206364 DOI: 10.1038/s41598-021-92019-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 06/04/2021] [Indexed: 11/29/2022] Open
Abstract
Mammalian orthoreovirus (MRV), a non-enveloped virus with a ten-segmented double-stranded RNA genome, infects virtually all mammals, including humans. Human infection with MRV seems to be common in early childhood, but is rarely symptomatic. Despite the ubiquitous presence of MRV in mammals as well as in environmental waters, the molecular characterisation of the MRV genome remains to be fully elucidated. In this study, two novel strains, MRV-2 THK0325 and MRV-1 THK0617, were unintentionally isolated from wastewater in Japan via an environmental surveillance of enteric viruses. Homology and phylogenetic analysis demonstrated that all the segments of THK0325 were closely related to the MRV-2 Osaka strains, which were recently proposed to have existed for at least two decades in Japan. Most of the segments in THK0617 also showed a close relationship with the MRV-2 Osaka strains, but the M2, S1, and S3 segments belong to another MRV cluster. According to the S1 sequence, the determinant of serotype THK0617 was classified as MRV-1, and both the M2 and S3 segments were closely related to MRV-1 and -3 from the tree shrew in China. These results suggest that the MRV-2 Osaka-like strain spread widely throughout Japan, accompanied by intertypic reassortment occurring in East Asia.
Collapse
Affiliation(s)
- Kouichi Kitamura
- Department of Virology II, National Institute of Infectious Diseases, 4-7-1 Gakuen, Musashi-murayama, Tokyo, 208-0011, Japan.
| | - Hirotaka Takagi
- Management Department of Biosafety and Laboratory Animal, National Institute of Infectious Diseases, Tokyo, 208-0011, Japan
| | - Tomoichiro Oka
- Department of Virology II, National Institute of Infectious Diseases, 4-7-1 Gakuen, Musashi-murayama, Tokyo, 208-0011, Japan
| | - Michiyo Kataoka
- Department of Pathology, National Institute of Infectious Diseases, Tokyo, 208-0011, Japan
| | - Yo Ueki
- Miyagi Prefectural Institute of Public Health and Environment, Sendai, 983-0836, Japan
| | - Akie Sakagami
- Miyagi Prefectural Institute of Public Health and Environment, Sendai, 983-0836, Japan
| |
Collapse
|
4
|
Zhang W, Kataoka M, Doan YH, Oi T, Furuya T, Oba M, Mizutani T, Oka T, Li TC, Nagai M. Isolation and characterization of mammalian orthoreovirus type 3 from a fecal sample from a wild boar in Japan. Arch Virol 2021; 166:1671-1680. [PMID: 33839921 DOI: 10.1007/s00705-021-05053-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 02/11/2021] [Indexed: 11/29/2022]
Abstract
Mammalian orthoreoviruses (MRVs) have been identified in various mammalian species, including humans, bats, and pigs. However, isolation and complete genome sequences of MRVs from wild boars have not yet been reported. In this study, we isolated, sequenced, and analyzed an MRV from a free-living wild boar in Japan using the porcine-sapelovirus-resistant cell line N1380. Complete and empty virus particles were obtained from the N1380 cell culture supernatants, and complete genome sequences were obtained from complete virus particles. Sequence analysis revealed that the isolated MRV, named TY-14, could be classified as MRV3 and had a close genetic relationship to an MRV2 isolate from a lion in a Japanese zoo (L2, L3, and M3 genes) and a human MRV2 isolate from Japan (S2 gene). Phylogenetic analysis showed that TY-14 clustered only with bat MRVs in the M1 phylogenetic tree but formed a cluster with several animal MRVs in the M2 and S3 phylogenetic trees and branched independently in the L1, S1, and S4 phylogenetic trees, suggesting a genetic relationship to viruses of unknown origin. Recombination events were identified in the M2 gene. These results suggest that TY-14 was generated by reassortment and recombination events involving MRVs circulating in Japan, viruses from bats, and other viruses of unknown origin.
Collapse
Affiliation(s)
- Wenjing Zhang
- Department of Virology II, National Institute of Infectious Diseases, Gakuen 4-7-1, Musashi-murayama, Tokyo, 208-0011, Japan
| | - Michiyo Kataoka
- Department of Pathology, National Institute of Infectious Diseases, Gakuen 4-7-1, Musashi-murayama, Tokyo, 208-0011, Japan
| | - Yen Hai Doan
- Department of Environmental Parasitology, Tokyo Medical and Dental University, M&D Tower 16F, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Toru Oi
- Faculty of Bioresources and Environmental Science, Ishikawa Prefectural University, Nonoichi, Ishikawa, 921-8836, Japan
| | - Tetsuya Furuya
- Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, 183-8509, Japan
| | - Mami Oba
- 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
| | - Tomoichiro Oka
- Department of Virology II, National Institute of Infectious Diseases, Gakuen 4-7-1, Musashi-murayama, Tokyo, 208-0011, Japan
| | - Tian-Cheng Li
- Department of Virology II, National Institute of Infectious Diseases, Gakuen 4-7-1, Musashi-murayama, Tokyo, 208-0011, Japan
| | - Makoto Nagai
- School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa, 252-5201, Japan.
| |
Collapse
|