Changes in receptor specificity and pathogenesis associated with mutations of capsid amino acids of enterovirus 71 in host adaptation
Project/Area Number |
25293111
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Partial Multi-year Fund |
Section | 一般 |
Research Field |
Virology
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Research Institution | National Institute of Infectious Diseases |
Principal Investigator |
SHIMIZU HIROYUKI 国立感染症研究所, その他部局等, その他 (90270644)
|
Co-Investigator(Renkei-kenkyūsha) |
NISHIMURA YORIHIRO 国立感染症研究所, ウイルス第二部第二室, 主任研究官 (00392316)
KATAOKA CHIKAKO 北海道大学, 人獣共通感染症リサーチセンター, 特任助教 (10646623)
|
Project Period (FY) |
2013-04-01 – 2016-03-31
|
Project Status |
Completed (Fiscal Year 2016)
|
Budget Amount *help |
¥11,960,000 (Direct Cost: ¥9,200,000、Indirect Cost: ¥2,760,000)
Fiscal Year 2015: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2014: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2013: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
|
Keywords | エンテロウイルス / エンテロウイルス71 / 受容体 / PSGL-1 / 手足口病 / レセプター / 動物モデル / 病原性 / 感染モデル / 分子進化 / カニクイザル |
Outline of Final Research Achievements |
In this research project, we investigated the involvement of the capsid amino acid mutation of enterovirus 71 (EV 71) in the viral phenotype and pathogenicity. Specific capsid amino acid residues including VP1-145 around the 5-fold vertex of the EV71 capsid were responsible for various viral phenotypes such as PSGL-1-binding specificity and neutralization antigenicity. In a cynomolgus monkey model, we demonstrated potent in vivo selection of EV71 variants with VP1-145E in host adaptation and the resultant VP1-145E variants were mainly associated with the development of viremia and neuropathogenesis presumably in a PSGL-1 independent manner. Therefore, the results suggest the in vivo involvement of amino acid polymorphisms at VP1-145 in cell-specific viral replication, in vivo fitness, and pathogenesis in EV71-infected individuals.
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Report
(4 results)
Research Products
(47 results)
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[Journal Article] Neuropathogenicity of Two Saffold Virus Type 3 Isolates in Mouse Models.2016
Author(s)
Kotani O, Naeem A, Suzuki T, Iwata-Yoshikawa N, Sato Y, Nakajima N, Hosomi T, Tsukagoshi H, Kozawa K, Hasegawa H, Taguchi F, Shimizu H, Nagata N.
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Journal Title
PLOS One
Volume: 11
Issue: 2
Pages: 1-29
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] Human rhinovirus infections in hospitalized children: clinical, epidemiological and virological features.2016
Author(s)
Tran DN, Trinh QD, Pham NT, Pham TM, Ha MT, Nguyen TQ, Okitsu S, Shimizu H, Hayakawa S, Mizuguchi M, Ushijima H.
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Journal Title
Epidemiol Infect.
Volume: 144
Issue: 2
Pages: 346-54
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Cosavirus (family Picornaviridae) in pigs in Thailand and Japan2016
Author(s)
Okitsu S, Khamrin P, Hanaoka N, Thongprachum A, Takanashi S, Fujimoto T, Mizuguchi M, Shimizu H, Hayakawa S, Maneekarn N, Ushijima H
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Journal Title
Arch Virol
Volume: 161
Issue: 1
Pages: 159-163
DOI
Related Report
Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] An Insight into Recombination with Enterovirus Species C and Nucleotide G-480 Reversion from the Viewpoint of Neurovirulence of Vaccine-Derived Polioviruses2015
Author(s)
Zhang Y, Yan D, Zhu S, Nishimura Y, Ye X, Wang D, Jorba J, Zhu H, An H, Shimizu H, Kew O, Xu W
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Journal Title
Scientific Reports
Volume: 5
Issue: 1
Pages: 17291-17291
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Establishment of a panel of in-house polyclonal antibodies for the diagnosis of enterovirus infections2014
Author(s)
Kotani O, Iwata-Yoshikawa N, Suzuki T, Sato Y, Nakajima N, Koike S, Iwasaki T, Sata T, Yamashita T, Minagawa H, Taguchi F, Hasegawa H, Shimizu H, Nagata N
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Journal Title
Neuropathology
Volume: 35
Issue: 2
Pages: 107-121
DOI
Related Report
Peer Reviewed
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[Journal Article] Clinical manifestations of coxsackievirus a6 infection associated with a major outbreak of hand, foot, and mouth disease in Japan2013
Author(s)
Kobayashi M, Makino T, Hanaoka N, Shimizu H, Enomoto M, Okabe N, Kanou K, Konagaya M, Oishi K, Fujimoto T
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Journal Title
Jpn J Infect Dis
Volume: 66
Pages: 260-261
NAID
Related Report
Peer Reviewed
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