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The role of incomplete viral RNA in persistent feline morbillivirus infection.

Research Project

Project/Area Number 22K14999
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 42020:Veterinary medical science-related
Research InstitutionOsaka Medical and Pharmaceutical University

Principal Investigator

Sakaguchi Shoichi  大阪医科薬科大学, 医学部, 助教 (20815279)

Project Period (FY) 2022-04-01 – 2025-03-31
Project Status Completed (Fiscal Year 2024)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2024: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2023: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2022: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywordsネコモルビリウイルス / RNA依存性RNAポリメラーゼ / 不完全ゲノム / Defective Interfering / RdRp / RNAウイルス / ウイルス / RNA / ネコ / 腎臓 / 尿細管間質性腎炎
Outline of Research at the Start

高齢のネコでは泌尿器疾患の罹患率が約20%と高いが、原因は明らかでない。このうち、ネコの尿細管間質性腎炎の原因のひとつがネコモルビリウイルス感染とされている。これまでの研究から、このウイルスの1年以上の持続感染が観察されていることから、腎臓での持続感染が病態形成に関わっていると考えられる。ウイルスの持続感染には不完全ウイルスRNAが関与することが考えられるが、このRNAの網羅的な解析は技術的に困難で、不明な点が多い。そこで本研究では独自の方法を使って網羅的なコピーバック型不完全ウイルスRNAの同定を試み、不完全ウイルスRNAの全体像を明らかにする。

Outline of Final Research Achievements

We investigated how feline morbillivirus, which infects the kidneys of cats, can persist in the body over time by focusing on incomplete forms of viral RNA. Using next-generation sequencing, we thoroughly analyzed the RNA and identified a wide variety of previously undetected incomplete viral RNAs. Notably, some of these RNAs were found in infected cells during both the acute and chronic phases of infection. These findings suggest that certain incomplete RNAs may play a role in maintaining long-term viral persistence. Future research will explore how these RNAs influence viral replication and host responses, which may ultimately contribute to understanding disease mechanisms and developing new treatment strategies.

Academic Significance and Societal Importance of the Research Achievements

ネコモルビリウイルスはネコの慢性腎疾患との関連が疑われており、その病態解明は動物福祉の観点からも重要である。本研究によって、持続感染を維持するウイルス側因子が明らかになれば、ウイルス性腎疾患に対する新たな診断・治療法の開発につながる可能性がある。さらに、不完全ウイルスRNAの理解は、他の慢性感染ウイルス(例:麻疹ウイルスなど)への応用も期待され、人獣共通感染症への対応強化にも貢献し得る。

Report

(4 results)
  • 2024 Annual Research Report   Final Research Report ( PDF )
  • 2023 Research-status Report
  • 2022 Research-status Report
  • Research Products

    (8 results)

All 2024 2023

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

  • [Journal Article] NeoRdRp2 with improved seed data, annotations, and scoring2024

    • Author(s)
      Sakaguchi Shoichi、Nakano Takashi、Nakagawa So
    • Journal Title

      Frontiers in Virology

      Volume: 4

    • DOI

      10.3389/fviro.2024.1378695

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Exploring the hidden world of RNA viruses with a transformer-based tool2024

    • Author(s)
      Nakagawa So、Sakaguchi Shoichi
    • Journal Title

      Patterns

      Volume: 5 Issue: 11 Pages: 101095-101095

    • DOI

      10.1016/j.patter.2024.101095

    • Related Report
      2024 Annual Research Report
    • Open Access
  • [Journal Article] Current trends in RNA virus detection through metatranscriptome sequencing data2023

    • Author(s)
      Nakagawa So、Sakaguchi Shoichi、Ogura Atsushi、Mineta Katsuhiko、Endo Toshinori、Suzuki Yoshiyuki、Gojobori Takashi
    • Journal Title

      FEBS Open Bio

      Volume: accepted Issue: 6 Pages: 992-1000

    • DOI

      10.1002/2211-5463.13626

    • Related Report
      2023 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The International Virus Bioinformatics Meeting 20232023

    • Author(s)
      Hufsky F.、Abecasis A.、Babaian A.、Beck S.、Brierley L.、Dellicour S.、Eggeling C.、Elena S.、Gieraths U.、Ha A.、Harvey W.、Jones T.、Lamkiewicz K.、Lovate G.、Lucking D.、Machyna M.、Nishimura L.、Nocke M.、Renard B.、Sakaguchi S.ら
    • Journal Title

      Viruses

      Volume: 15 Issue: 10 Pages: 2031-2031

    • DOI

      10.3390/v15102031

    • Related Report
      2023 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 包括的RNAウイルス検出のためのHMMデータセット「NeoRdRp2」を用いたメタトランスクリプトームデータ解析2024

    • Author(s)
      坂口翔一、中川草、中野隆史
    • Organizer
      第167回 日本獣医学会学術集会
    • Related Report
      2024 Annual Research Report
  • [Presentation] RNA Virome analyses of metatranscriptome data using NeoRdRp2024

    • Author(s)
      Shoichi Sakaguchi
    • Organizer
      International Virus Bioinformatics Meeting 2024
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Identification of diversified RNA viruses from various environments using NeoRdRp2024

    • Author(s)
      Shoichi Sakaguchi, So Nakagawa, Takashi Nakano
    • Organizer
      第26回日本進化学会神奈川大会
    • Related Report
      2024 Annual Research Report
  • [Presentation] RNA Virus Discovery Using HMM of Large-Scale RNA-Dependent RNA Polymerase Sequence Data: NeoRdRp 2.02023

    • Author(s)
      Shoichi Sakaguchi
    • Organizer
      The International Virus Bioinformatics Meeting 2023
    • Related Report
      2023 Research-status Report
    • Int'l Joint Research

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Published: 2022-04-19   Modified: 2026-01-16  

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