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Development of seed sequences for oligonucleotide therapeutics targeting neurodegenerative disorders

Research Project

Project/Area Number 20K16452
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 50020:Tumor diagnostics and therapeutics-related
Research InstitutionSaitama Medical University

Principal Investigator

YONEDA Ryoma  埼玉医科大学, 医学部, 講師 (00734881)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2022: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2021: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
KeywordsALS / m6A修飾 / 核酸医薬 / FUS / lncRNA / LLPS / TLS/FUS / 相分離 / cyclin D1
Outline of Research at the Start

本研究ではlncRNAを基盤にした神経変性疾患に対する核酸医薬シードを開発することを目指す。神経変性疾患では神経細胞がアポトーシスを起こし発症へとつながる。その原因は多岐に渡るが、本研究では「cyclin D1の過剰発現」と「RNA結合タンパク質(RBP)の繊維化」に注目する。Cyclin D1は細胞周期を司る因子で、その過剰発現は神経細胞の細胞周期を再活性化しアポトーシスを誘発する。またRBPは繊維化することでアポトーシスへと導く。cyclin D1の発現とRBPの繊維化を同時に抑制する配列をlncRNAの中から見出し効果を検証することで、神経変性疾患の治療につながることが期待できる。

Outline of Final Research Achievements

In this study, we aimed to search for RNA sequences which inhibits LLPS of FUS, a causative gene for ALS. We found that 20nt RNA, derived from lncRNA, efficiently the inhibited the formation of FUS droplets and gels, and m6A modification enhanced the effect dramatically. This effect was observed in many cell lines, the RNA itself did not have cytotoxicity. In conclusion, we were able to determine the RNA sequence which is very probable for the seed sequence for targeting ALS caused by FUS.

Academic Significance and Societal Importance of the Research Achievements

ALSはいまだに治療法が確立されていない難病の一つである。孤発性と家族性とがあり、FUSはその両方に関わっているとされる。FUSを含むRNA結合タンパク質は、多くの神経変性疾患の原因遺伝子とされており、これらのタンパク質が細胞質で凝集体を形成することが、発症の一因とされている。したがって、これらの凝集体形成を阻害する薬剤の探究が急務である。我々が同定したRNA配列は、FUSに特異的に結合してその相分離を阻害する。この研究を進めていけば、ALSのみならず、その他の神経変性疾患をターゲットとした核酸医薬の開発へとつながる。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (9 results)

All 2024 2023 2022 2021 2020

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

  • [Journal Article] Identification of Essential Components of RNA Binding Domain of TLS/FUS2024

    • Author(s)
      Ueda Naomi、Yoneda Ryoma、Kurokawa Riki
    • Journal Title

      Biomedical Sciences

      Volume: 10 Issue: 2 Pages: 30-43

    • DOI

      10.11648/j.bs.20241002.13

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Identification of Long Noncoding RNA Recognized by RNA-Binding Protein TLS/FUS: Purification of RNAs by Affinity Chromatography of GST-TLS2022

    • Author(s)
      Naomi Ueda, Ryoma Yoneda, Riki Kurokawa
    • Journal Title

      Biomedical Sciences

      Volume: 8(4) Pages: 144-156

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] m 6 A Modified Short RNA Fragments Inhibit Cytoplasmic TLS/FUS Aggregation Induced by Hyperosmotic Stress2021

    • Author(s)
      Ryoma Yoneda, Naomi Ueda, Riki Kurokawa
    • Journal Title

      International Journal of Molecular Sciences

      Volume: Vol.22 Issue: 20 Pages: 11014-11014

    • DOI

      10.3390/ijms222011014

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Non-coding RNA suppresses FUS aggregation caused by mechanistic shear stress on pipetting in a sequence-dependent manner2021

    • Author(s)
      Hamad Nesreen、Yoneda Ryoma、So Masatomo、Kurokawa Riki、Nagata Takashi、Katahira Masato
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 9523-9523

    • DOI

      10.1038/s41598-021-89075-w

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Potential Inhibitor Against Phase Separation, 1, 6-hexanediol Specifically Binds to Beta Actin in Nuclear Extract of Human Cell Line2020

    • Author(s)
      Naomi Ueda, Yuki Hirose, Ryoma Yoneda, Toshikazu Bando, Riki Kurokawa
    • Journal Title

      Biomedical Sciences

      Volume: 6 Pages: 88-97

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] m6A修飾認識タンパク質としてのTLS/FUS2023

    • Author(s)
      米田竜馬、上田奈緒美、黒川理樹
    • Organizer
      第46回日本分子生物学会年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] TLS/FUSのm6A修飾readerとしての可能性2022

    • Author(s)
      米田竜馬、上田奈緒美、黒川理樹
    • Organizer
      第45回日本分子生物学会年会
    • Related Report
      2022 Research-status Report
  • [Presentation] The effect of m6A RNA on LLPS of TLS/FUS2021

    • Author(s)
      米田竜馬、上田奈緒美、黒川理樹
    • Organizer
      第44回日本分子生物学会年会
    • Related Report
      2021 Research-status Report
  • [Presentation] CCND1遺伝子発現におけるlncRNAのm6A修飾の役割2021

    • Author(s)
      米田竜馬、上田奈緒美、浦西洸介、平崎正孝、黒川理樹
    • Organizer
      第43回日本分子生物学会年会
    • Related Report
      2020 Research-status Report
    • Invited

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Published: 2020-04-28   Modified: 2025-01-30  

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