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Intranuclear replication mechanism of influenza A virus

Research Project

Project/Area Number 20H03494
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 49060:Virology-related
Research InstitutionKyoto University

Principal Investigator

Noda Takeshi  京都大学, 医生物学研究所, 教授 (00422410)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2022: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2021: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2020: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
Keywordsインフルエンザウイルス / 転写・複製 / RNP / 核小体 / RNP形成 / RNP複合体 / 転写 / 複製 / 核
Outline of Research at the Start

インフルエンザウイルスは、他の多くのRNAウイルスと異なり、感染細胞の核内でRNP複合体を形成する。しかし、核内には多様な核内ドメインが存在しており、核内のどこでRNP複合体が形成されるかは未解明のままである。本研究課題では、核小体に着目し、RNP複合体の形成の場を明らかにすることを目的とする。本研究課題が遂行されれば、従来ほとんど明らかにされていなかったRNP複合体の核内動態の詳細な理解につながり、インフルエンザウイルスのユニークな核内複製戦略の解明へと発展する。

Outline of Final Research Achievements

The genomic RNA of influenza virus, together with viral polymerase and the nucleoprotein NP, forms a helical RNP complex. The current study aimed to elucidate the mechanism of RNP formation within the nucleus. We reconstituted RNPs in cells using mutant NPs in which a mutation was introduced into the nucleolar localization signal, and found that the mutant NP could not form helical RNPs and had no transcription and replication activity. On the other hand, when the RNP was reconstituted using the reversion mutant NP to which a nucleolar localization signal was added, the mutant NP formed helical RNPs and was found to have transcription and replication activity. These findings demonstrate the significant role of the nucleolus in influenza virus RNP formation.

Academic Significance and Societal Importance of the Research Achievements

本研究では、インフルエンザウイルスの転写・複製を担うRNP複合体の形成において、核小体が重要な役割を担うことを明らかにした。RNP形成の場が核小体か否かは未だ議論の余地があるが、NPが一過性に核小体に移行することが必須であることを明らかにした点において、ウイルス学的に重要な意義を持つ。実際に核小体形成を阻害する化合物により、インフルエンザウイルスの増殖を有意に阻害することができた。RNP複合体形成のメカニズムをより詳細に明らかにすることで、細胞毒性のないRNP形成阻害薬の開発につながる可能性がある。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (12 results)

All 2022 2021 2020

All Journal Article (12 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 12 results,  Open Access: 10 results)

  • [Journal Article] Contribution of RNA-RNA Interactions Mediated by the Genome Packaging Signals for the Selective Genome Packaging of Influenza A Virus.2022

    • Author(s)
      Miyamoto S, Muramoto Y, Shindo K, Fujita-Fujiharu Y, Morikawa T, Tamura R, Gilmore JL, Nakano M, Noda T.
    • Journal Title

      J Virol

      Volume: 96 Issue: 6

    • DOI

      10.1128/jvi.01641-21

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Migration of Influenza Virus Nucleoprotein into the Nucleolus Is Essential for Ribonucleoprotein Complex Formation2022

    • Author(s)
      Sho Miyamoto, Masahiro Nakano, Takeshi Morikawa, Ai Hirabayashi, Ryoma Tamura, Yoko Fujita-Fujiharu, Nanami Hirose, Yukiko Muramoto, and Takeshi Noda
    • Journal Title

      mBio

      Volume: 13 Issue: 1

    • DOI

      10.1128/mbio.03315-21

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Structural insight into Marburg virus nucleoprotein?RNA complex formation2022

    • Author(s)
      Fujita-Fujiharu Yoko、Sugita Yukihiko、Takamatsu Yuki、Houri Kazuya、Igarashi Manabu、Muramoto Yukiko、Nakano Masahiro、Tsunoda Yugo、Taniguchi Ichiro、Becker Stephan、Noda Takeshi
    • Journal Title

      Nature Communications

      Volume: 13 Issue: 1 Pages: 1-9

    • DOI

      10.1038/s41467-022-28802-x

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Role of VP30 Phosphorylation in Ebola Virus Nucleocapsid Assembly and Transport2022

    • Author(s)
      Takamatsu Yuki、Yoshikawa Tomoki、Kurosu Takeshi、Fukushi Shuetsu、Nagata Noriyo、Shimojima Masayuki、Ebihara Hideki、Saijo Masayuki、Noda Takeshi
    • Journal Title

      Journal of Virology

      Volume: 96 Issue: 17 Pages: 1-17

    • DOI

      10.1128/jvi.01083-22

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Filovirus helical nucleocapsid structures.2022

    • Author(s)
      Hu S, Noda T.
    • Journal Title

      Microscopy (Oxf)

      Volume: Oct15 Issue: 3 Pages: 1-13

    • DOI

      10.1093/jmicro/dfac049

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Ultrastructure of influenza virus ribonucleoprotein complexes during viral RNA synthesis2021

    • Author(s)
      Masahiro Nakano, Yukihiko Sugita, Noriyuki Kodera, Sho Miyamoto, Yukiko Muramoto, Matthias Wolf, and Takeshi Noda
    • Journal Title

      Commun. Biol.

      Volume: 4 Issue: 1 Pages: 858-858

    • DOI

      10.1038/s42003-021-02388-4

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Modeling SARS-CoV-2 infection and its individual differences with ACE2-expressing human iPS cells2021

    • Author(s)
      Sano Emi、Deguchi Sayaka、Sakamoto Ayaka、Mimura Natsumi、Hirabayashi Ai、Muramoto Yukiko、Noda Takeshi、Yamamoto Takuya、Takayama Kazuo
    • Journal Title

      iScience

      Volume: 24 Issue: 5 Pages: 102428-102428

    • DOI

      10.1016/j.isci.2021.102428

    • NAID

      120007032353

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A novel aqueous extract from rice fermented with Aspergillus oryzae and Saccharomyces cerevisiae possesses an anti-influenza A virus activity2021

    • Author(s)
      Shoji Masaki、Sugimoto Minami、Matsuno Kosuke、Fujita Yoko、Mii Tomohiro、Ayaki Satomi、Takeuchi Misa、Yamaji Saki、Tanaka Narue、Takahashi Etsuhisa、Noda Takeshi、Kido Hiroshi、Tokuyama Takaaki、Tokuyama Takahito、Tokuyama Takashi、Kuzuhara Takashi
    • Journal Title

      PLOS ONE

      Volume: 16 Issue: 1 Pages: e0244885-e0244885

    • DOI

      10.1371/journal.pone.0244885

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Protective Face Mask Filter Capable of Inactivating SARS-CoV-2, and Methicillin-Resistant Staphylococcus aureus and Staphylococcus epidermidis2021

    • Author(s)
      Marti M, Tunon-Molina A, Aachmann FL, Muramoto Y, Noda T, Takayama K, Serrano-Aroca A
    • Journal Title

      Polymers

      Volume: 13 Issue: 2 Pages: 207-207

    • DOI

      10.3390/polym13020207

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Optimal Expression of the Envelope Glycoprotein of Orthobornaviruses Determines the Production of Mature Virus Particles.2021

    • Author(s)
      Sakai M, Fujita Y, Komorizono R, Kanda T, Komatsu Y, Noda T, Tomonaga K, Makino A.
    • Journal Title

      J Virol.

      Volume: 95 Issue: 5 Pages: 1-16

    • DOI

      10.1128/jvi.02221-20

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Selective Genome Packaging Mechanisms of Influenza A Viruses.2021

    • Author(s)
      Noda T
    • Journal Title

      Cold Spring Harb Perspect Med.

      Volume: in press Pages: a038497-a038497

    • DOI

      10.1101/cshperspect.a038497

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Influenza A virus NS1 optimises virus infectivity by enhancing genome packaging in a dsRNA-binding dependent manner2020

    • Author(s)
      Sha Tim Wai、Weber Michaela、Kasumba Dacquin M.、Noda Takeshi、Nakano Masahiro、Kato Hiroki、Fujita Takashi
    • Journal Title

      Virology Journal

      Volume: 17 Issue: 1 Pages: 107-107

    • DOI

      10.1186/s12985-020-01357-3

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research

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

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