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Comprehensive Functional Analysis of Genome Resources Aimed at Elucidating the Pathomechanisms of Tauopathy

Research Project

Project/Area Number 21H02837
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 52020:Neurology-related
Research InstitutionNiigata University

Principal Investigator

Sugie Atsushi  新潟大学, 脳研究所, 准教授 (50777000)

Co-Investigator(Kenkyū-buntansha) 池内 健  新潟大学, 脳研究所, 教授 (20372469)
新田 陽平  新潟大学, 脳研究所, 特任助教 (30800429)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2023: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2022: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2021: ¥9,230,000 (Direct Cost: ¥7,100,000、Indirect Cost: ¥2,130,000)
Keywords神経変性疾患 / タウオパチー / ショウジョウバエ / 遺伝子変異 / スクリーニング / アルツハイマー病
Outline of Research at the Start

アルツハイマー病をはじめとするタウオパチーは,微小管結合タンパク質のタウが細胞内に異常蓄積することが定義されているが,遺伝的要因の大多数は未だ不明である.我々が持つ国内最大規模のタウオパチーゲノムリソースを解析した結果,アリル頻度の少ないミスセンス変異が多数見いだされ,その中に未知なる病因関連遺伝子が存在すると考えた.本研究では,これらの変異の中からタウオパチーに関連する機能的な変異を網羅的に見いだし,本疾患の全体像が明らかにすることを目的とする.そのために,我々が開発したハイスループットにスクリーニングできるショウジョウバエの神経変性自動評価システムを用いる.

Outline of Final Research Achievements

Tauopathy, a group of diseases including Alzheimer's disease, is characterized by the accumulation of tau protein within cells. We analyzed the largest domestic tauopathy genome resource, identifying potential causative genes that harbor low-frequency missense mutations. Utilizing fruit flies, we established an experimental model to monitor neurodegenerative changes and synaptic loss in optic nerve axons. Additionally, we developed MeDUsA, an automated system for quantifying neurodegeneration. Through this, we assessed the impact of mutations and explored the functionality of genes associated with tauopathy risk; however, no significant differences were detected. Our research also led to the discovery of mutations responsible for rare diseases and the development of corresponding pathological models. These findings significantly enhance our understanding of neurodegenerative diseases.

Academic Significance and Societal Importance of the Research Achievements

私たちが特定した低頻度のミスセンス変異含む遺伝子は、タウオパチーの病態メカニズムを理解する鍵となり得ます。ショウジョウバエを用いた視神経軸索の変性とシナプス喪失のモニタリング実験モデルは、疾患発症の遺伝的背景を探る新たなアプローチを提供し、MeDUsAを用いた自動定量化技術は研究の効率を大幅に向上させています。さらに、希少疾患の原因遺伝子の特定や新しい病態モデルの開発は、より広範な神経変性疾患の治療法開発に寄与する可能性があります。これらの研究成果は、学術的にも社会的にも重要であり、神経変性疾患の診断、治療、予防の進展に貢献することが期待されます。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • Research Products

    (9 results)

All 2023 2022

All Journal Article (5 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 5 results,  Open Access: 3 results) Presentation (4 results) (of which Invited: 3 results)

  • [Journal Article] Heterozygous loss-of-function DHX9 variants are associated with neurodevelopmental disorders: Human genetic and experimental evidences2023

    • Author(s)
      Yamada Mamiko、Nitta Yohei、Uehara Tomoko、Suzuki Hisato、Miya Fuyuki、Takenouchi Toshiki、Tamura Masaru、Ayabe Shinya、Yoshiki Atsushi、Maeno Akiteru、Saga Yumiko、Furuse Tamio、Yamada Ikuko、Okamoto Nobuhiko、Kosaki Kenjiro、Sugie Atsushi
    • Journal Title

      European Journal of Medical Genetics

      Volume: 66 Issue: 8 Pages: 104804-104804

    • DOI

      10.1016/j.ejmg.2023.104804

    • Related Report
      2023 Annual Research Report 2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Drosophila model to clarify the pathological significance of OPA1 in autosomal dominant optic atrophy2023

    • Author(s)
      Nitta Yohei、Osaka Jiro、Maki Ryuto、Hakeda-Suzuki Satoko、Suzuki Emiko、Ueki Satoshi、Suzuki Takashi、Sugie Atsushi
    • Journal Title

      eLife

      Volume: -

    • DOI

      10.7554/elife.87880.1

    • Related Report
      2023 Annual Research Report 2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A novel NONO variant that causes developmental delay and cardiac phenotypes2023

    • Author(s)
      Itai T、Sugie A、Nitta Y、Maki R、Suzuki T、Shinkai Y、Watanabe Y、Nakano Y、Ichikawa K、Okamoto N、Utsuno Y、Koshimizu E、Fujita A、Hamanaka K、Uchiyama Y、Tsuchida N、Miyake N、Misawa K、Mizuguchi T、Miyatake S、Matsumoto N
    • Journal Title

      Scientific Reports

      Volume: 13 Issue: 1 Pages: 975-975

    • DOI

      10.1038/s41598-023-27770-6

    • Related Report
      2023 Annual Research Report 2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Direct evaluation of neuroaxonal degeneration with the causative genes of neurodegenerative diseases in <i>Drosophila</i> using the automated axon quantification system, MeDUsA2023

    • Author(s)
      Nitta Yohei、Kawai Hiroki、Maki Ryuto、Osaka Jiro、Hakeda-Suzuki Satoko、Nagai Yoshitaka、Doubkov? Karol?na、Uehara Tomoko、Watanabe Kenji、Kosaki Kenjiro、Suzuki Takashi、Tavosanis Gaia、Sugie Atsushi
    • Journal Title

      Human Molecular Genetics

      Volume: 32 Issue: 9 Pages: 1524-1538

    • DOI

      10.1093/hmg/ddac307

    • Related Report
      2023 Annual Research Report 2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Detoxification of amyloid β fibrils by curcumin derivatives and their verification in a <i>Drosophila</i> Alzheimer's model2022

    • Author(s)
      Utomo Rohmad Yudi、Sugie Atsushi、Okada Satoshi、Miura Kazuki、Nakamura Hiroyuki
    • Journal Title

      Chemical Communications

      Volume: 58 Issue: 15 Pages: 2576-2579

    • DOI

      10.1039/d1cc07000b

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Presentation] ハエを用いた神経変性疾患の遺伝的要因の検出2023

    • Author(s)
      杉江淳
    • Organizer
      国立遺伝学研究所国際シンポジウム2023
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 優性優性視神経萎縮の発症に関与するOPA1変異の病理的意義を検証するショウジョウバエモデルの確立2023

    • Author(s)
      杉江淳
    • Organizer
      第46回日本神経科学大会
    • Related Report
      2023 Annual Research Report 2022 Annual Research Report
  • [Presentation] 機能性アミロイドの探索2023

    • Author(s)
      杉江淳
    • Organizer
      第66回日本神経化学会大会
    • Related Report
      2023 Annual Research Report 2022 Annual Research Report
    • Invited
  • [Presentation] ハエを用いた神経変性疾患の遺伝的要因の検出2023

    • Author(s)
      杉江淳
    • Organizer
      国立遺伝学研究所国際シンポジウム2023(招待講演)
    • Related Report
      2022 Annual Research Report
    • Invited

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Published: 2021-04-28   Modified: 2025-01-30  

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