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Uncovering ALS mechanisms and drug targets linked to autophagy disturbances

Research Project

Project/Area Number 22K15724
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 52020:Neurology-related
Research InstitutionThe University of Tokyo

Principal Investigator

Naruse Hiroya  東京大学, 医学部附属病院, 特任助教 (20898241)

Project Period (FY) 2022-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2023: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2022: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywords筋萎縮性側索硬化症 / オートファジー
Outline of Research at the Start

筋萎縮性側索硬化症 (ALS) は、運動ニューロンの選択的細胞死により運動機能が失われ、2年から5年で死に至る神経難病である。その病態には不明な点が多く現時点で根治療法は見出されていない。本研究では、ALS症例の網羅的ゲノム解析情報を駆使して、特定のオートファジーのパスウェイの障害による、ALS発症のメカニズムを明らかにする。オートファジーの障害からALS発症へ至る病態機序を遺伝子レベル、さらには細胞・動物モデルを用いて解明することで、病態に基づくALSの新規治療薬の開発を目指す。

Outline of Final Research Achievements

Amyotrophic lateral sclerosis (ALS) is a representative neurodegenerative disease characterized by the selective cell death of motor neurons, which results in the loss of motor functions. Many aspects of its pathogenesis remain unclear, and no curative treatment has yet been discovered. In this study, we aimed to identify novel genes related to ALS and to elucidate the mechanisms underlying its onset. We conducted comprehensive genomic analyses, including whole-exome sequencing and whole-genome sequencing, on sporadic and familial ALS cases collected by our department. As a result, we identified a novel gene associated with ALS.

Academic Significance and Societal Importance of the Research Achievements

本邦の家族性ALS症例の約4割、孤発性ALS症例の約96%において、ALSの原因遺伝子の病原性バリアントが見出されておらず、遺伝的病因の解明は引き続き重要な課題である。本研究で今回ALSの新規原因遺伝子の病原性バリアントを家族性ALSおよび孤発性ALS症例で見出したことは、ALSのさらなる病態解明のためにも重要な知見である。さらに脂質代謝に重要な遺伝子の病原性バリアントを同定したことから、特定の脂質代謝異常を是正することによりALSの治療が可能になることも期待される。

Report

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

    (7 results)

All 2024 2023 2022

All Journal Article (6 results) (of which Peer Reviewed: 6 results,  Open Access: 2 results) Presentation (1 results) (of which Invited: 1 results)

  • [Journal Article] <scp><i>SPTLC2</i></scp> variants are associated with early‐onset <scp>ALS</scp> and <scp>FTD</scp> due to aberrant sphingolipid synthesis2024

    • Author(s)
      Naruse H、Ishiura H、Takiyama Y、Morishita S、Tsuji S、Toda T, et al.
    • Journal Title

      Annals of Clinical and Translational Neurology

      Volume: - Issue: 4 Pages: 946-957

    • DOI

      10.1002/acn3.52013

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Clinical features of a family with late‐onset distal hereditary motor neuropathy harboring p.Pro39Leu variant of HSPB12023

    • Author(s)
      Naruse Hiroya、Okubo So、Sudo Atsushi、Mitsui Jun、Mikata Takashi、Ishiura Hiroyuki、Morishita Shinichi、Tsuji Shoji、Toda Tatsushi
    • Journal Title

      Journal of the Peripheral Nervous System

      Volume: 28 Issue: 3 Pages: 518-521

    • DOI

      10.1111/jns.12567

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Noncanonical splice-site variant in peripheral myelin protein 22 gene (PMP22) in a patient with hereditary neuropathy with liability to pressure palsies2023

    • Author(s)
      Kawamoto Norifumi、Hamada Yuichi、Kobayashi Shunsuke、Naruse Hiroya、Ishiura Hiroyuki、Matsukawa Takashi、Mitsui Jun、Tsuji Shoji、Sonoo Masahiro、Toda Tatsushi
    • Journal Title

      Journal of the Peripheral Nervous System

      Volume: 28 Issue: 3 Pages: 513

    • DOI

      10.1111/jns.12558

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] LONRF2 is a protein quality control ubiquitin ligase whose deficiency causes late-onset neurological deficits2023

    • Author(s)
      Li Dan、Johmura Yoshikazu、Morimoto Satoru et al.
    • Journal Title

      Nature Aging

      Volume: 3 Issue: 8 Pages: 1001-1019

    • DOI

      10.1038/s43587-023-00464-4

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Valosin-containing protein Asp395Gly mutation in a patient with frontotemporal dementia: a case report2022

    • Author(s)
      Kobayashi Ryota、Naruse Hiroya、Kawakatsu Shinobu、Iseki Chifumi、Suzuki Yuya、Koyama Shingo、Morioka Daichi、Ishiura Hiroyuki、Mitsui Jun、Ohta Yasuyuki、Tsuji Shoji、Toda Tatsushi、Otani Koichi
    • Journal Title

      BMC Neurology

      Volume: 22 Issue: 1 Pages: 1-6

    • DOI

      10.1186/s12883-022-02951-4

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Clinical and electrophysiological findings of facial palsy in a case of hereditary gelsolin amyloidosis2022

    • Author(s)
      Kaoru Yamakawa, Hironobu Nishijima, Akatsuki Kubota, Hiroya Naruse, Shintaro Baba, Yoko Fujimaki, Kenji Kondo, Tatsushi Toda, Tatsuya Yamasoba
    • Journal Title

      Auris Nasus Larynx

      Volume: - Issue: 2 Pages: 305-308

    • DOI

      10.1016/j.anl.2022.02.003

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Presentation] Genetic analysis and role of rare variants in ALS-causing genes in the Japanese ALS series2022

    • Author(s)
      Hiroya Naruse
    • Organizer
      日本人類遺伝学会第65回大会
    • Related Report
      2022 Research-status Report
    • Invited

URL: 

Published: 2022-04-19   Modified: 2025-01-30  

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