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Mechanism of measles virus spread in the brain

Research Project

Project/Area Number 20H00507
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Review Section Medium-sized Section 49:Pathology, infection/immunology, and related fields
Research InstitutionNagasaki University (2021-2022)
Kyushu University (2020)

Principal Investigator

YANAGI Yusuke  長崎大学, 高度感染症研究センター, 教授 (40182365)

Co-Investigator(Kenkyū-buntansha) 白銀 勇太  九州大学, 医学研究院, 助教 (40756988)
橋口 隆生  京都大学, 医生物学研究所, 教授 (50632098)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥44,850,000 (Direct Cost: ¥34,500,000、Indirect Cost: ¥10,350,000)
Fiscal Year 2022: ¥14,430,000 (Direct Cost: ¥11,100,000、Indirect Cost: ¥3,330,000)
Fiscal Year 2021: ¥14,430,000 (Direct Cost: ¥11,100,000、Indirect Cost: ¥3,330,000)
Fiscal Year 2020: ¥15,990,000 (Direct Cost: ¥12,300,000、Indirect Cost: ¥3,690,000)
Keywords麻疹ウイルス / 亜急性硬化性全脳炎 / 膜融合 / 神経細胞 / 神経
Outline of Research at the Start

致死的難病である亜急性硬化性全脳炎(SSPE)は、麻疹(はしか)ウイルスが脳に持続感染して起こる遅発性感染症である。我々はこれまでの研究で、麻疹ウイルスF(融合)蛋白質の変異が、神経病原性に重要であることを明らかにした。さらに、変異F蛋白質を持つ麻疹ウイルスは、受容体発現細胞への感染とは異なる新たな機構で感染細胞から周りの細胞へ伝播していることを発見した。本研究では、麻疹ウイルスによるこの新しい神経細胞伝播機構を解明することにより、SSPEの治療法開発に役立てることを目的とする。

Outline of Final Research Achievements

Although measles virus (MeV) generally causes an acute febrile illness, it may, albeit rarely, persist in the brain, causing subacute sclerosing panencephalitis (SSPE) several years after acute infection. In our study, we have obtained the following findings to better understand the pathogenesis of SSPE. First, the hyperfusogenic mutations in the fusion (F) gene are essential for MeV spread in the brain. Second, the cell adhesion molecule (CADM)1 and CADM2 act as cis-acting receptors for hyperfusogenic mutant MeVs in the brain. Third, the interactions among different wild-type and mutant MeVs determine MeV fusogenicity and spread in the brain, possible explaining the long incubation period of SSPE.

Academic Significance and Societal Importance of the Research Achievements

麻疹ウイルスは、免疫細胞に発現するSLAMF1、上皮細胞に発現するnectin-4を受容体として細胞に感染することが知られているが、脳にはこれらの分子は発現していない。我々の研究によって、脳ではCADM1、CADM2とよばれる分子が、膜融合能が亢進した変異麻疹ウイルスに対する受容体として機能していることが明らかになった。また、異なるウイルス間の相互作用が脳でのウイルス伝播に重要であることが示された。変異麻疹ウイルスとCADM1、CADM2の相互作用を阻害することが、SSPE治療法の開発に有用であることが考えられる。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Comments on the Screening Results   Annual Research Report
  • Research Products

    (10 results)

All 2023 2022 2021 Other

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 3 results) Presentation (5 results) Remarks (1 results)

  • [Journal Article] Collective fusion activity determines neurotropism of an en bloc transmitted enveloped virus2023

    • Author(s)
      Shirogane Yuta、Harada Hidetaka、Hirai Yuichi、Takemoto Ryuichi、Suzuki Tateki、Hashiguchi Takao、Yanagi Yusuke
    • Journal Title

      Science Advances

      Volume: 9 Issue: 4 Pages: 1-11

    • DOI

      10.1126/sciadv.adf3731

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Interaction of the hemagglutinin stalk region with cell adhesion molecule (CADM) 1 and CADM2 mediates the spread between neurons and neuropathogenicity of measles virus with a hyperfusogenic fusion protein2023

    • Author(s)
      Takemoto Ryuichi, Hirai Yuichi, Watanabe Shumpei, Harada Hidetaka, Suzuki Tateki, Hashiguchi Takao, Yanagi Yusuke, Shirogane Yuta
    • Journal Title

      Journal of Virology

      Volume: 97

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Short-Stalk Isoforms of CADM1 and CADM2 Trigger Neuropathogenic Measles Virus-Mediated Membrane Fusion by Interacting with the Viral Hemagglutinin2022

    • Author(s)
      Takemoto Ryuichi、Suzuki Tateki、Hashiguchi Takao、Yanagi Yusuke、Shirogane Yuta
    • Journal Title

      Journal of Virology

      Volume: 96 Issue: 3 Pages: 1-18

    • DOI

      10.1128/jvi.01949-21

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] CADM1 and CADM2 Trigger Neuropathogenic Measles Virus-Mediated Membrane Fusion by Acting in <i>cis</i>2021

    • Author(s)
      Shirogane Yuta、Takemoto Ryuichi、Suzuki Tateki、Kameda Tomonori、Nakashima Kinichi、Hashiguchi Takao、Yanagi Yusuke
    • Journal Title

      Journal of Virology

      Volume: 95 Issue: 14 Pages: 1-17

    • DOI

      10.1128/jvi.00528-21

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Cooperation and Interference between Wild-type and Subacute Sclerosing Panencephalitis-derived Measles Virus Fusion Proteins2022

    • Author(s)
      Hidetaka Harada, Ryuichi Takemoto, Yuichi Hirai, Tateki Suzuki, Takao Hashiguchi, Yusuke Yanagi, Yuta Shirogane
    • Organizer
      第69回日本ウイルス学会学術集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Fusion proteins derived from some SSPE measles virus isolates cause membrane fusion independently of SLAM, nectin-4, and CADM1/22022

    • Author(s)
      Yuichi Hirai, Ryuichi Takemoto,Tateki Suzuki, Takao Hashiguchi, Yusuke Yanagi, Yuta Shirogane
    • Organizer
      第69回日本ウイルス学会学術集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Alanine substitutions reveal residues in the stalk region of the measles virus hemagglutinin required for CADM1/2-dependent membrane fusion2022

    • Author(s)
      Ryuichi Takemoto, Yuichi Hirai, Tateki Suzuki, Takao Hashiguchi, Yusuke Yanagi, Yuta Shirogane
    • Organizer
      第69回日本ウイルス学会学術集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Cell adhesion molecule (CADM) 1 and CADM2 enable measles virus spread in subacute sclerosing panencephalitis by cis-acting fusion triggering2021

    • Author(s)
      Yuta Shirogane, Ryuichi Takemoto, Tateki Suzuki, Tomonori Kameda, Kinichi Nakashima,Takao Hashiguchi, Yusuke Yanagi
    • Organizer
      第68回日本ウイルス学会学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Cell adhesion molecule(CADM)1およびCADM2のストークの短いアイソフォームが 神経病原性を有する麻疹ウイルスによる膜融合を誘導する2021

    • Author(s)
      Ryuichi Takemoto, Tateki Suzuki, Takao Hashiguchi, Yusuke Yanagi, Yuta Shirogane
    • Organizer
      第68回日本ウイルス学会学術集会
    • Related Report
      2021 Annual Research Report
  • [Remarks] 麻疹(はしか)ウイルスが「協力」して脳炎を引き起こす仕組みを解明

    • URL

      https://www.nagasaki-u.ac.jp/ja/science/science298.html

    • Related Report
      2022 Annual Research Report

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Published: 2020-04-28   Modified: 2024-01-30  

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