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Investigating the factors regulating FUS phase transition

Research Project

Project/Area Number 21K15190
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 46010:Neuroscience-general-related
Research InstitutionOkayama University

Principal Investigator

Morihara Ryuta  岡山大学, 大学病院, 講師 (40895257)

Project Period (FY) 2021-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2022: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2021: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywordsfused in sarcoma / 液-液相分離 / 前頭側頭型認知症 / 筋萎縮性側索硬化症 / アルギニンメチル化 / 質量分析法 / fused in sarcoma (FUS) / 相転移 / 相分離
Outline of Research at the Start

RNA結合タンパク質の一種であるfused in sarcoma (FUS)は、可逆的に凝集度を変化させて「分散状態」「滴状」「ゲル状」に形態を変える相転移現象を示す。このFUS相転移を制御する要因の1つとしてFUSのアルギニンメチル化に注目が集まっているが、FUS相転移とアルギニンメチル化の関係については分かっていないことも多い。本研究ではFUSのアルギニン残基のメチル化状態を明らかにすることで、FUS相転移にアルギニンメチル化がどのようにかかわっているのかを解明することを目的とする。

Outline of Final Research Achievements

When physiological phase separation of FUS is disrupted, FUS abnormally aggregates to form inclusion bodies. In this study, we focused on arginine methylation of FUS as one of the factors regulating FUS phase separation, and performed mass spectrometry on brain samples from four groups: familial ALS with FUS mutation (ALS-FUS), FTLD with FUS accumulation (FTLD-FUS), sporadic ALS, and normal controls. The results showed that arginine residues tended to be demethylated in FTLD-FUS compared to normal controls, and that specific arginine residues were significantly demethylated, suggesting that demethylation of these specific arginine residues may cause increased phase separation of FUS. This suggests that demethylation of these specific arginine residues may be responsible for the increased phase separation of FUS.

Academic Significance and Societal Importance of the Research Achievements

RNA結合蛋白の一種であるFUSは、相分離という現象によって可逆的に「分散状」「滴状」「ゲル状」に形態を変化させるが、相分離が破綻すると異常凝集して神経障害を引き起こす。本研究はこの異常凝集の原因として、FUSの特定のアルギニン残基の脱メチル化が関係することを明らかにした。FUS凝集が原因となる筋萎縮性側索硬化症及び前頭側頭型認知症の病因解明と治療法開発に向けての端緒になる可能性がある。

Report

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

    (16 results)

All 2023 2022 2021 Other

All Journal Article (11 results) (of which Peer Reviewed: 11 results) Presentation (4 results) (of which Int'l Joint Research: 1 results) Remarks (1 results)

  • [Journal Article] A Unique Case of Sarcoid-associated Myelopathy Accompanied by Lung Cancer2023

    • Author(s)
      Tadokoro Koh、Nakada Yumi、Sasaki Ryo、Nakano Yumiko、Yunoki Taijun、Shin Kotaro、Taoka Masataka、Ninomiya Kiichiro、Nomura Emi、Takemoto Mami、Morihara Ryuta、Yamashita Toru
    • Journal Title

      Internal Medicine

      Volume: 62 Issue: 23 Pages: 3531-3535

    • DOI

      10.2169/internalmedicine.0943-22

    • ISSN
      0918-2918, 1349-7235
    • Year and Date
      2023-12-01
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Actual Telemedicine Needs of Japanese Patients with Neurological Disorders in the COVID-19 Pandemic2023

    • Author(s)
      Sasaki Ryo、Yunoki Taijun、Nakano Yumiko、Fukui Yusuke、Takemoto Mami、Morihara Ryuta、Abe Koji、Yamashita Toru
    • Journal Title

      Internal Medicine

      Volume: 62 Issue: 3 Pages: 365-371

    • DOI

      10.2169/internalmedicine.9702-22

    • ISSN
      0918-2918, 1349-7235
    • Year and Date
      2023-02-01
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Neuroprotective effects of carnosine in a mice stroke model concerning oxidative stress and inflammatory response2023

    • Author(s)
      Hu Xinran、Fukui Yusuke、Feng Tian、Bian Zhihong、Yu Haibo、Morihara Ryuta、Hu Xiao、Bian Yuting、Sun Hongming、Takemoto Mami、Nakano Yumiko、Yunoki Taijun、Abe Koji、Yamashita Toru
    • Journal Title

      Journal of the Neurological Sciences

      Volume: 447 Pages: 120608-120608

    • DOI

      10.1016/j.jns.2023.120608

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Tocovid Attenuated Oxidative Stress and Cognitive Decline by Inhibiting Amyloid-β-Induced NOX2 Activation in Alzheimer’s Disease Mice2022

    • Author(s)
      Bian Zhihong、Yu Haibo、Hu Xinran、Bian Yuting、Sun Hongming、Tadokoro Koh、Takemoto Mami、Yunoki Taijun、Nakano Yumiko、Fukui Yusuke、Morihara Ryuta、Abe Koji、Yamashita Toru
    • Journal Title

      Journal of Alzheimer's Disease

      Volume: Online ahead of print Issue: s1 Pages: 1-11

    • DOI

      10.3233/jad-220761

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Protective and anti-oxidative effects of curcumin and resveratrol on Aβ-oligomer-induced damage in the SH-SY5Y cell line2022

    • Author(s)
      Yu Haibo、Yamashita Toru、Hu Xiao、Bian Zhihong、Hu Xinrang、Feng Tian、Tadokoro Koh、Morihara Ryuta、Abe Koji
    • Journal Title

      Journal of the Neurological Sciences

      Volume: 441 Pages: 120356-120356

    • DOI

      10.1016/j.jns.2022.120356

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Efficacy and safety of spot heating and ultrasound irradiation on in vitro and in vivo thrombolysis models2022

    • Author(s)
      Morihara Ryuta、Yamashita Toru、Osakada Yosuke、Feng Tian、Hu Xinran、Fukui Yusuke、Tadokoro Koh、Takemoto Mami、Abe Koji
    • Journal Title

      Journal of Cerebral Blood Flow & Metabolism

      Volume: - Issue: 7 Pages: 1322-1334

    • DOI

      10.1177/0271678x221079127

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Clinical and Pathological Benefits of Scallop-Derived Plasmalogen in a Novel Mouse Model of Alzheimer’s Disease with Chronic Cerebral Hypoperfusion2022

    • Author(s)
      Feng Tian、Hu Xinran、Fukui Yusuke、Bian Zhihong、Bian Yuting、Sun Hongming、Takemoto Mami、Yunoki Taijun、Nakano Yumiko、Morihara Ryuta、Abe Koji、Yamashita Toru
    • Journal Title

      Journal of Alzheimer's Disease

      Volume: 86 Issue: 4 Pages: 1973-1982

    • DOI

      10.3233/jad-215246

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Protective Effect of Rivaroxaban Against Amyloid Pathology and Neuroinflammation Through Inhibiting PAR-1 and PAR-2 in Alzheimer’s Disease Mice2022

    • Author(s)
      Bian Zhihong、Liu Xia、Feng Tian、Yu Haibo、Hu Xiao、Hu Xinran、Bian Yuting、Sun Hongming、Tadokoro Koh、Takemoto Mami、Yunoki Taijun、Nakano Yumiko、Fukui Yusuke、Morihara Ryuta、Abe Koji、Yamashita Toru
    • Journal Title

      Journal of Alzheimer's Disease

      Volume: 86 Issue: 1 Pages: 111-123

    • DOI

      10.3233/jad-215318

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Switching the Proteolytic System from the Ubiquitin-Proteasome System to Autophagy in the Spinal Cord of an Amyotrophic Lateral Sclerosis Mouse Model2021

    • Author(s)
      Tadokoro K, Yamashita T, Shang J, Ohta Y, Nomura E, Morihara R, Omote Y, Takemoto M, Abe K.
    • Journal Title

      Neuroscience .

      Volume: 466 Pages: 47-57

    • DOI

      10.1016/j.neuroscience.2021.04.034

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Neuroprotective effects of Scallop-derived plasmalogen in a mouse model of ischemic stroke2021

    • Author(s)
      Feng Tian、Hu Xinran、Fukui Yusuke、Tadokoro Koh、Bian Zhihong、Morihara Ryuta、Yamashita Toru、Abe Koji
    • Journal Title

      Brain Research

      Volume: 1766 Pages: 147516-147516

    • DOI

      10.1016/j.brainres.2021.147516

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Retinal Amyloid Imaging for Screening Alzheimer's Disease.2021

    • Author(s)
      Tadokoro K, Yamashita T, Kimura S, Nomura E, Ohta Y, Omote Y, Takemoto M, Hishikawa N, Morihara R, Morizane Y, Abe K.
    • Journal Title

      Alzheimers Dis.

      Volume: 83 Issue: 2 Pages: 927-934

    • DOI

      10.3233/jad-210327

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] Efficacy and safety of spot heating and ultrasound on in vitro and in vivo thrombolysis models2022

    • Author(s)
      Ryuta Morihara, Toru Yamashita, Yosuke Osakada, Tian Feng, Xinran Hu, Yusuke Fukui, Koh Tadokoro, Mami Takemoto, Koji Abe
    • Organizer
      BRAIN & BRAIN PET 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 慢性経過の頭頂葉萎縮と運動失調を呈する家族性及び孤発性の7症例2022

    • Author(s)
      森原隆太、山下徹、池内健、北口正孝、阿部康二
    • Organizer
      第65回日本脳循環代謝学会学術集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 脳血栓モデルにおける温熱照射と超音波照射の有効性と安全性の検討.2021

    • Author(s)
      森原隆太、山下徹、小坂田陽介、馮田、胡欣冉、福井裕介、田所功、武本麻美、阿部康二
    • Organizer
      第47回日本脳卒中学会学術総会
    • Related Report
      2021 Research-status Report
  • [Presentation] tPA thrombolysis within 4.5 h after onset in five hospital groups in Japan.2021

    • Author(s)
      Morihara R, Kono S, Yamashita T, Manabe Y, Takao Y, Kashihara K, Deguchi K, Inoue S, Kiriyama H, Abe K.
    • Organizer
      第62回日本神経学会学術総会
    • Related Report
      2021 Research-status Report
  • [Remarks] 岡山大学脳神経内科学講座 論文紹介

    • URL

      https://www.okayama-u.ac.jp/user/shinnai/publications.html

    • Related Report
      2022 Annual Research Report

URL: 

Published: 2021-04-28   Modified: 2024-01-30  

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