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Development of a Rapid Nucleotide Sequence Analysis Method for Avian Influenza Virus

Research Project

Project/Area Number 21K20610
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0605:Veterinary medical science, animal science, and related fields
Research InstitutionKagoshima University

Principal Investigator

Okuya Kosuke  鹿児島大学, 農水産獣医学域獣医学系, 助教 (10907736)

Project Period (FY) 2021-08-30 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2022: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords鳥インフルエンザウイルス / 高病原性鳥インフルエンザ / 遺伝子解析 / ナノポアシークエンス / 高病原性鳥インフルエンザウイルス / 次世代シークエンス / ナノポアシークエンサー / 疫学調査 / インフルエンザウイルス / 野鳥
Outline of Research at the Start

鳥インフルエンザウイルス (AIV) は8分節のRNAをゲノムに持ち、遺伝子再集合により、性状の異なる多様なAIV株が出現する。そのため、野鳥における流行株の性状を把握するためには、AIVの全遺伝子分節の解析が重要である。本研究は、AIV全遺伝子分節を標的にした迅速な塩基配列解読法を確立し、流行株の性状変化をリアルタイムに検出する系の構築を目的とする。確立した手法により、AIV分離株の全遺伝子分節を解析し、疫学調査としての有用性を検証する。

Outline of Final Research Achievements

Avian influenza virus (AIV) is a genome containing 8 segments of RNA, which can lead to the emergence of diverse AIV strains with different characteristics due to genetic recombination. Therefore, analysis of all gene segments of AIV is crucial for understanding the characteristics of epidemic strains. In this study, a rapid nucleotide sequence analysis method targeting all gene segments of AIV was established, with the aim of constructing a system for real-time detection of changes in the characteristics of epidemic strains. We focused on the Nanopore sequencer Flongle, which is a rapid and low-cost gene analysis tool, to establish a rapid nucleotide sequence determination method. Using the established method, all gene segments of AIV isolates were analyzed and the usefulness of the method as an epidemiological investigation tool was verified.

Academic Significance and Societal Importance of the Research Achievements

本研究成果により、過去に分離された鳥インフルエンザウイルス(AIV)の全遺伝子解析を完了した。また、2021/22年シーズンおよび2022/23年シーズンに発生した高病原性鳥インフルエンザウイルスの遺伝子解析を迅速に実施し、行政と連携した高病原性鳥インフルエンザ対策に貢献した。

Report

(3 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • Research Products

    (8 results)

All 2023 2022 2021

All Journal Article (5 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 5 results,  Open Access: 1 results) Presentation (3 results)

  • [Journal Article] Avian paramyxovirus serotype-1 isolation from migratory birds and environmental water in southern Japan: An epidemiological survey during the 2018/19-2021/2022 winter seasons2023

    • Author(s)
      Matsunaga Nonoka、Ijiri Moe、Ishikawa Kemi、Ozawa Makoto、Okuya Kosuke、Khalil Ahmed Magdy、Kojima Isshu、Esaki Mana、Masatani Tatsunori、Matsui Tsutomu、Fujimoto Yoshikazu
    • Journal Title

      Microbiology and Immunology

      Volume: 67 Issue: 4 Pages: 185-193

    • DOI

      10.1111/1348-0421.13053

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Experimental and natural infections of white-tailed sea eagles (Haliaeetus albicilla) with high pathogenicity avian influenza virus of H5 subtype2022

    • Author(s)
      Fujimoto Yoshikazu、Ogasawara Kohei、Isoda Norikazu、Hatai Hitoshi、Okuya Kosuke、Watanabe Yukiko、Takada Ayato、Sakoda Yoshihiro、Saito Keisuke、Ozawa Makoto
    • Journal Title

      Frontiers in Microbiology

      Volume: 13

    • DOI

      10.3389/fmicb.2022.1007350

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Improved method for avian influenza virus isolation from environmental water samples2022

    • Author(s)
      Khalil Ahmed Magdy、Kojima Isshu、Fukunaga Wataru、Okajima Misuzu、Mitarai Sumire、Fujimoto Yoshikazu、Matsui Tsutomu、Kuwahara Masakazu、Masatani Tatsunori、Okuya Kosuke、Ozawa Makoto
    • Journal Title

      Transboundary and Emerging Diseases

      Volume: 69 Issue: 5

    • DOI

      10.1111/tbed.14639

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Genetic Characterization of Avian Influenza Viruses Isolated from the Izumi Plain, Japan in 2019/20 Winter Season2022

    • Author(s)
      Okuya Kosuke、Khalil Ahmed、Esaki Mana、Kojima Isshu、Nishi Natsuko、Koyamada Donna、Matsui Tsutomu、Yoshida Yuuhei、Ozawa Makoto
    • Journal Title

      Pathogens

      Volume: 11 Issue: 9 Pages: 1013-1013

    • DOI

      10.3390/pathogens11091013

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Genetically Diverse Highly Pathogenic Avian Influenza A(H5N1/H5N8) Viruses among Wild Waterfowl and Domestic Poultry, Japan, 20212022

    • Author(s)
      Okuya Kosuke、Mine Junki、Tokorozaki Kaori、Kojima Isshu、Esaki Mana、Miyazawa Kohtaro、Tsunekuni Ryota、Sakuma Saki、Kumagai Asuka、Takadate Yoshihiro、Kikutani Yuto、Matsui Tsutomu、Uchida Yuko、Ozawa Makoto
    • Journal Title

      Emerging Infectious Diseases

      Volume: 28 Issue: 7 Pages: 1451-1455

    • DOI

      10.3201/eid2807.212586

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 2021/22年シーズン、鹿児島県で分離されたH5N1亜型およびH5N8亜型の高病原性鳥インフルエンザウイルスの遺伝学的解析2022

    • Author(s)
      奥谷公亮、峯淳貴、所崎香織、児島一州、江嵜真南、宮澤光太郎、常國良太、佐久間咲希、熊谷飛鳥、高舘佳弘、菊谷祐斗、松井勉、内田裕子、小澤真
    • Organizer
      第165回日本獣医学会学術集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] フクロウ類における性染色体性別判定領域の遺伝子構成の解明2022

    • Author(s)
      江嵜真南、桃原研希、児島一州、所崎香織、原口優子、松井勉、奥谷公亮、小澤真
    • Organizer
      第28回日本野生動物医学会大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 野鳥渡来地の環境水から紐解く鳥インフルエンザウイルスの流行動態2021

    • Author(s)
      Ahmed Magdy Khali、奥谷公亮、藤本佳万、児島一州、江崎真南、李京河、西奈津子、正谷達謄、松井勉、小澤真
    • Organizer
      第164回日本獣医学会学術集会
    • Related Report
      2021 Research-status Report

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Published: 2021-10-22   Modified: 2024-01-30  

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