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AI-supported studies of RNA viruses

Research Project

Project/Area Number 18K07151
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 49060:Virology-related
Research InstitutionNagahama Institute of Bio-Science and Technology

Principal Investigator

Wada Kennosuke  長浜バイオ大学, バイオサイエンス学部, 教授 (90231026)

Co-Investigator(Kenkyū-buntansha) 池村 淑道  長浜バイオ大学, バイオサイエンス学部, 客員教授 (50025475)
Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords新型コロナウイルス / COVID-19 / 人獣共通感染症 / AI / RNAウイルス / ウイルス進化 / オリゴヌクレオチド / 自己組織化マップ / SARS-CoV-2 / oligonucleotide / RNA virus / host adaptation / pandemic / evolution / big data / エボラウイルス / 新興感染症 / 人工知能 / ビッグデータ解析 / 機械学習 / インフルエンザウイルス / デング熱ウイルス / ジカ熱ウイルス / miRNA / ビッグデータ / ウイルス / 感染症 / 時系列解析
Outline of Final Research Achievements

SARS-CoV-2 is a fast-evolving zoonotic RNA virus, and due to its social concern, a large number of genomic sequences have been published. Unsupervised AI for oligonucleotide composition (BLSOM: Batch Learning Self-Organizing Map) developed by us is suitable for big sequence data analysis and enables efficient knowledge discovery with various visualization functions. The oligonucleotide composition of the virus was changed in unidirectional manner (monotonic increase or decrease) after invading the human population; the direction was from the composition of the coronavirus prevalent in bats to that of the cold coronavirus prevalent in humans, as well as from the composition of bat mRNAs to that of human mRNAs. Time-series analysis of the composition of long oligonucleotide such as 20-mers can identify the rapidly expanding mutations in the virus population, and we have developed a method to distinguish advantageous mutations favoring viral growth from neutral mutations.

Academic Significance and Societal Importance of the Research Achievements

人獣共通感染症RNAウイルスはヒト以外の宿主動物から突然にヒトへと侵入し、大半のヒトが効果的な免疫を持たないことから大流行を引き起こすので、人類はこの脅威に常に晒されている。加えてRNAウイルスは高速に進化するので、ワクチンを含む予防や治療薬ならびに診断薬の有効性が失われ易い。この難題の解決には、本研究で開発したゲノム配列の変化方向の特定と予測が重要となる。新型コロナウイルスの場合は基礎研究であっても研究成果の迅速な公開が重要であり、既に7報の査読付き論文として発表し、投稿中の2報もpreprintとして公開した。ウイルスゲノムの配列解析にAIを導入したことも先導的であり学術的意味が高い。

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (18 results)

All 2022 2021 2020 2019 2018

All Journal Article (9 results) (of which Peer Reviewed: 5 results,  Open Access: 9 results) Presentation (9 results) (of which Int'l Joint Research: 1 results,  Invited: 3 results)

  • [Journal Article] Unsupervised explainable AI for molecular evolutionary study of forty thousand SARS-CoV-2 genomes2022

    • Author(s)
      Iwasaki Y, Abe T, Wada K, Wada Y, Ikemura T
    • Journal Title

      BMC Microbiology

      Volume: 22 Issue: 1 Pages: 73-73

    • DOI

      10.1186/s12866-022-02484-3

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Comparative genomics of the human genome and six bat genomes using AI: Mb-level CpG and TFBS islands2022

    • Author(s)
      Iwasaki Y, Ikemura T, Wada K, Wada Y, Abe T
    • Journal Title

      Research Square

      Volume: -

    • DOI

      10.21203/rs.3.rs-1323531/v1

    • Related Report
      2021 Annual Research Report
    • Open Access
  • [Journal Article] Oligonucleotide usage in coronavirus genomes mimics that in exon regions in host genomes2022

    • Author(s)
      Iwasaki Y, Abe T, Ikemura T
    • Journal Title

      Research Square

      Volume: -

    • DOI

      10.21203/rs.3.rs-1604205/v1

    • Related Report
      2021 Annual Research Report
    • Open Access
  • [Journal Article] AI for the collective analysis of a massive number of genome sequences: various examples from the small genome of pandemic SARS-CoV-2 to the human genome2021

    • Author(s)
      Ikemura T, Iwasaki Y, Wada K, Wada Y, Abe T
    • Journal Title

      Genes & Genetic Systems

      Volume: 96 Issue: 4 Pages: 165-176

    • DOI

      10.1266/ggs.21-00025

    • NAID

      130008129951

    • ISSN
      1341-7568, 1880-5779
    • Year and Date
      2021-08-01
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Human cell-dependent, directional, time-dependent changes in the mono- and oligonucleotide compositions of SARS-CoV-2 genomes2021

    • Author(s)
      Iwasaki Yuki、Abe Takashi、Ikemura Toshimichi
    • Journal Title

      BMC Microbiology

      Volume: 21 Issue: 1 Pages: 89-89

    • DOI

      10.1186/s12866-021-02158-6

    • Related Report
      2021 Annual Research Report 2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Time-series trend of pandemic SARS-CoV-2 variants visualized using batch-learning self-organizing map for oligonucleotide compositions2021

    • Author(s)
      Takashi Abe, Ryuki Furukawa, Yuki Iwasaki, Toshimichi Ikemura
    • Journal Title

      bioRxiv

      Volume: -

    • DOI

      10.1101/2021.04.15.439956

    • Related Report
      2020 Research-status Report
    • Open Access
  • [Journal Article] Mb-level CpG and TFBS islands visualized by AI and their roles in the nuclear organization of the human genome2020

    • Author(s)
      Kennosuke Wada, Yoshiko Wada, Toshimichi Ikemura
    • Journal Title

      Genes & Genetic Systems

      Volume: 95 Issue: 1 Pages: 29-41

    • DOI

      10.1266/ggs.19-00027

    • NAID

      130007834265

    • ISSN
      1341-7568, 1880-5779
    • Year and Date
      2020-02-01
    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Time-series analyses of directional sequence changes in SARS-CoV-2 genomes and an efficient search method for candidates for advantageous mutations for growth in human cells2020

    • Author(s)
      Kennosuke Wada, Yoshiko Wada, Toshimichi Ikemura
    • Journal Title

      Gene: X

      Volume: 5 Pages: 100038-100038

    • DOI

      10.1016/j.gene.2020.100038

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Unsupervised explainable AI for simultaneous molecular evolutionary study of forty thousand SARS-CoV-2 genomes2020

    • Author(s)
      Toshimichi Ikemura, Kennosuke Wada, Yoshiko Wada, Yuki Iwasaki, Takashi Abe
    • Journal Title

      bioRxiv

      Volume: -

    • DOI

      10.1101/2020.10.11.335406

    • Related Report
      2020 Research-status Report
    • Open Access
  • [Presentation] 新型コロナウイルスの宿主適応に関連したゲノム変化2022

    • Author(s)
      安藤 大喜、齊川 幸人、岩﨑 裕貴、阿部 貴志、和田健之介、 和田佳子、池村 淑道
    • Organizer
      第16回日本ゲノム微生物学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] コロナウイルスの宿主適応に関連したgenome signature の抽出2021

    • Author(s)
      岩﨑 裕貴、阿部 貴志、安藤 大喜、池村 淑道
    • Organizer
      第68回日本ウイルス学会学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 宿主環境特異的な コロナウイルスゲノムの特徴抽出2021

    • Author(s)
      岩﨑 裕貴、 安藤 大喜、 阿部貴志、 池村淑道
    • Organizer
      日本遺伝学会 第93回大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 宿主細胞特異的な環境に依存した SARS-CoV-2 連続塩基組成の変化2021

    • Author(s)
      岩﨑裕貴 、阿部貴志 、池村淑道
    • Organizer
      第 15 回日本ゲノム微生物学会年会
    • Related Report
      2020 Research-status Report
  • [Presentation] Time-series analysis of directional sequence changes in SARS-CoV-2 genomes and an unsupervised explainable AI for studying corona virus genomes2020

    • Author(s)
      Toshimichi Ikemura
    • Organizer
      International Symposium on Data Science
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] ヒトゲノムに見られるMb規模のCpGとTFBS islandsとそれらの構造と機能2019

    • Author(s)
      和田 健之介、和田 佳子、池村 淑道
    • Organizer
      日本遺伝学会第91回大会
    • Related Report
      2019 Research-status Report
  • [Presentation] AI に導かれた感染症RNA ウィルスの分子進化研究2018

    • Author(s)
      和田 健之介、和田 佳子、池村 淑道
    • Organizer
      日本遺伝学会 第90回大会
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] 時系列解析とAIを用いた感染症RNAウィルス増殖に関与する宿主 miRNAの推定2018

    • Author(s)
      和田健之介、和田佳子、池村淑道
    • Organizer
      日本進化学会第20回大会
    • Related Report
      2018 Research-status Report
  • [Presentation] ゲノムのビッグデータからのAIによる想定外の知識発見とその進化学への応用2018

    • Author(s)
      池村淑道、和田佳子、和田健之介
    • Organizer
      第2回木村資生記念進化学セミナー
    • Related Report
      2018 Research-status Report
    • Invited

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Published: 2018-04-23   Modified: 2023-01-30  

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