• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Molecular mechanisms of viral infection by Nelson Bay Reovirus isolated from humans

Research Project

Project/Area Number 18K15167
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 49060:Virology-related
Research InstitutionOsaka University

Principal Investigator

Kawagishi Takahiro  大阪大学, 微生物病研究所, 特任研究員(常勤) (90800029)

Project Period (FY) 2018-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2019: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2018: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywordsレオウイルス / コウモリ / 細胞侵入 / 遺伝子操作系 / リバースジェネティクス / 新興感染症 / 受容体
Outline of Final Research Achievements

Nelson Bay Reovirus (NBV), a member of family Reoviridae is recently recognized as a causative agent of acute respiratory tract infections in humans. In this study, we characterized NBV NelB strain (isolated from a bat) and MB strain (isolated from human) to understand how strain-specific difference of σC gene influences viral infectivity and pathogenesis. By using reverse genetics system, we generated recombinant virus expressing NelB-σC in genetic background of MB. All mice infected with NelB-σC didn’t show any sign of illness. To better understand functional differences of σC between NleB and MB strains, we generated chimeric σC mutant viruses and demonstrated that body domain in σC is associated with strain specific difference in viral infectivity and pathogenesis. These data suggest that biological properties of σC, including infectivity and pathogenesis, segregate in a strain-specific manner.

Academic Significance and Societal Importance of the Research Achievements

エボラウイルスやニパウイルスなど、コウモリを自然宿主とするウイルスの中には、ヒトに致死的な病原性を引き起こすものが存在する。しかし、ヒトへの感染性獲得機序について不明な点は多い。本研究では、ネルソンベイレオウイルスのコウモリ分離株とヒト分離株のσCの違いが感染性、病原性の違いを決める重要な要因であることを明らかにした。さらに、コウモリおよびヒト分離株間での感染性・病原性の違いは、σC受容体との吸着能ではなく、σCの構造的安定性によるものであることが明らかとなった。本研究成果は、コウモリからヒトへの感染性を獲得し、ヒトで病原性を示すウイルスの感染性獲得機構の理解に有益な知見を与えると期待される。

Report

(3 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • Research Products

    (13 results)

All 2020 2019 2018

All Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 4 results,  Open Access: 3 results) Presentation (9 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Reverse Genetics System for a Human Group A Rotavirus.2020

    • Author(s)
      Kawagishi T, Nurdin J, Onishi M, Nouda R, Kanai Y, Tajima T, Ushijima H, Kobayashi T
    • Journal Title

      J Virol

      Volume: 94 Issue: 2

    • DOI

      10.1128/jvi.00963-19

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] In Vivo Live Imaging of Oncolytic Mammalian Orthoreovirus Expressing NanoLuc Luciferase in Tumor Xenograft Mice2019

    • Author(s)
      Kanai Yuta、Kawagishi Takahiro、Matsuura Yoshiharu、Kobayashi Takeshi
    • Journal Title

      Journal of Virology

      Volume: 93 Issue: 14

    • DOI

      10.1128/jvi.00401-19

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Development of Stable Rotavirus Reporter Expression Systems2019

    • Author(s)
      Kanai Y, Kawagishi T, Nouda R, Onishi M, Pannacha P, Nurdin JA, Nomura K, Matsuura Y, Kobayashi T.
    • Journal Title

      Journal of Virology

      Volume: 93 Issue: 4

    • DOI

      10.1128/jvi.01774-18

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Cell-cell fusion induced by reovirus FAST proteins enhances replication and pathogenicity of non-enveloped dsRNA viruses2019

    • Author(s)
      2.Yuta Kanai, Takahiro Kawagishi, Yusuke Sakai, Ryotaro Nouda, Masayuki Shimojima, Masayuki Saijo, Yoshiharu Matsuura, Takeshi Kobayashi
    • Journal Title

      PLoS Pathogens

      Volume: 印刷中

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Altered replication of recombinant rotaviruses expressing NSP3 lacking eIF4G binding domain2019

    • Author(s)
      Ryotaro Nouda, Yuta Kanai, Takahiro Kawagishi, Pimfhun Pannacha, Takeshi Kobayashi
    • Organizer
      The 67th Annual Meeting of Japanese Society for Virology
    • Related Report
      2019 Annual Research Report
  • [Presentation] Development of rotavirus vector as vaccine platform for intestinal pathogens2019

    • Author(s)
      Yuta Kanai, Takahiro Kawagishi, Pimfhun Pannacha, Ryotaro Nouda, Misa Onishi, Jeffery A. Nurdin, Keiichiro Nomura, Lusiany Tina, Moeko Yamasaki, Takeshi Kobayashi
    • Organizer
      The 67th Annual Meeting of Japanese Society for Virology
    • Related Report
      2019 Annual Research Report
  • [Presentation] Examination of rotavirus antigenemia and antigenuria by immunochromatography method and enzyme immunoassay2019

    • Author(s)
      Hiroshi Ushijima, Itoe Shiota, Yuko Shimizu, Hidemasa Miyashita, Masaaki Kobayashi, Pattara Khamrin, Ariful Hoque, Sayaka Takanashi, Shoko Okitsu, Takahiro Kawagishi, Yuta Kanai, Satoshi Komoto, Koki Taniguchi, Takeshi Kobayashi, Takeshi Tajima, Niwat Maneekarn, Satoshi Hayakawa
    • Organizer
      The 67th Annual Meeting of Japanese Society for Virology
    • Related Report
      2019 Annual Research Report
  • [Presentation] Nelson Bay Orthoreovirus σC determines strain-specific differences in viral replication and pathogenesis2018

    • Author(s)
      Takahiro Kawagishi, Yuta Kanai, Yusuke Sakai, Ryotaro Nouda, Hideki Tani, Masayuki Shimojima, Masayuki Saijo, Yoshiharu Matsuura, Takeshi Kobayashi
    • Organizer
      13th International dsRNA Virus Symposium
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Antigenecity of simian and human reassortant rotaviruses generated by reverse genetics2018

    • Author(s)
      Yuta Kanai, Takahiro Kawagishi, Misa Onishi, Pimfhun Pannacha, Ryotaro Nouda, Jeffery A. Nurdin, Keiichiro Nomura, Hiroshi Ushijima, Takeshi Kobayashi
    • Organizer
      13th International dsRNA Virus Symposium
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Nelson Bay Orthoreovirus σC body domain is associated with strain-specific differences in viral replication2018

    • Author(s)
      Takahiro Kawagishi, Yuta Kanai, Yusuke Sakai, Ryotaro Nouda, Hideki Tani, Masayuki Shimojima, Masayuki Saijo, Yoshiharu Matsuura, Takeshi Kobayashi
    • Organizer
      The 66th Annual Meeting of Japanese Society for Virology
    • Related Report
      2018 Research-status Report
  • [Presentation] Platform for rotavirus vaccine development using plasmid-based reverse genetics2018

    • Author(s)
      Yuta Kanai, Takahiro Kawagishi, Misa Onishi, Pimfhun Pannacha, Ryotaro Nouda, Jeffery A. Nurdin, Keiichiro Nomura, Hiroshi Ushijima, Takeshi Kobayashi
    • Organizer
      The 66th Annual Meeting of Japanese Society for Virology
    • Related Report
      2018 Research-status Report
  • [Presentation] Fusogenic bat-borne orthoreovirus p17 protein regulates viral replication in a host-specific manner2018

    • Author(s)
      Ryotaro Nouda, Takahiro Kawagishi, Yuta Kanai, Masayuki Shimojima, Masayuki Saijo, Yoshiharu Matsuura, Takeshi Kobayashi
    • Organizer
      The 66th Annual Meeting of Japanese Society for Virology
    • Related Report
      2018 Research-status Report
  • [Presentation] Development of stable reporter rotaviruses2018

    • Author(s)
      Pannacha Pimfhun, Yuta Kanai, Misa Onishi, Takahiro Kawagishi, Ryotaro Nouda, Jeffery Nurdin, Yoshiharu Matsuura, Takeshi Kobayashi
    • Organizer
      The 66th Annual Meeting of Japanese Society for Virology
    • Related Report
      2018 Research-status Report

URL: 

Published: 2018-04-23   Modified: 2021-02-19  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi