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Pathology-specific propagation mechanisms revealed by analysis of alpha-synuclein in blood

Research Project

Project/Area Number 19K16928
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 51030:Pathophysiologic neuroscience-related
Research InstitutionJuntendo University

Principal Investigator

Okuzumi Ayami  順天堂大学, 医学部, 准教授 (90826075)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2022: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywordsパーキンソン病 / αシヌクレイン / 多系統萎縮症 / RT-QuIC / alpha-synuclein / レビー小体型認知症 / Alpha-synuclein
Outline of Research at the Start

パーキンソン病(PD)および多系統萎縮症(MSA)は進行性の神経変性疾患である。PDとMSAは臨床的には異なる症状を示す疾患であるが、ともにαシヌクレイン(AS)を原因タンパク質としている。本研究では、タンパク質凝集の観点から細胞間伝播様式の違いに着目してアプローチする。ASはプリオンタンパク質のように細胞から細胞へ伝播することが知られているが、ASの凝集体は両疾患で異なる病理学的所見を呈し、これに起因して異なる症状を反映すると示唆されている。本研究では、PDとMSAで異なるASの伝播様式について、ASの複合体や受容体の同定を通して明らかにする。

Outline of Final Research Achievements

Parkinson’s disease (PD) and Multiple system atrophy (MSA) are synucleinopathies, comprising pathomechanisms that involve alpha-synuclein (aSyn) seeds converting a native form of aSyn into abnormal conformational structures with propagative properties. Although aSyn seeds are detected in various tissues, it remains unclear whether these seeds exist in the serum. IP/RT-QuIC enables the detection of serum pathogenic aSyn seeds and proves a useful diagnostic biomarker for synucleinopathy. Furthermore, the amplified aSyn seeds maintain their disease-specific morphological and propagative properties. Finally, this novel approach also allows the distinction between PD and MSA.

Academic Significance and Societal Importance of the Research Achievements

α-シヌクレイノパチー患者の血液中に存在するα-シヌクレインシードがα-シヌクレイノパチーの診断と鑑別のマーカーとして有用であることを明らかにした。また、増幅された血清α-シヌクレインシードは伝播能を保持し、さらには、疾患毎に構造の異なる凝集体を形成することが分かった。今後は血液を用いた簡便かつ有用な診断方法の確立を目指すとともに、疾患ごとの凝集体構造の相違などに着目することで、病態解明をめざす。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (27 results)

All 2022 2021 2020 2019

All Journal Article (12 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 12 results,  Open Access: 8 results) Presentation (13 results) (of which Int'l Joint Research: 2 results,  Invited: 4 results) Book (2 results)

  • [Journal Article] Quantum-dot-labeled synuclein seed assay identifies drugs modulating the experimental prion-like transmission2022

    • Author(s)
      Imamura Yukio、Okuzumi Ayami、Yoshinaga Saki、Hiyama Akiko、Furukawa Yoshiaki、Miyasaka Tomohiro、Hattori Nobutaka、Nukina Nobuyuki
    • Journal Title

      Communications Biology

      Volume: 5 Issue: 1 Pages: 1-15

    • DOI

      10.1038/s42003-022-03590-8

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] α-Synuclein Seeding Assay Using RT-QuIC.2021

    • Author(s)
      Okuzumi Ayami、Hatano Taku、Fukuhara Takeshi、Ueno Shinichi、Nukina Nobuyuki、Imai Yuzuru、Hattori Nobutaka
    • Journal Title

      Methods Mol Biol.

      Volume: 2322 Pages: 3-16

    • DOI

      10.1007/978-1-0716-1495-2_1

    • ISBN
      9781071614945, 9781071614952
    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Comorbid alpha synucleinopathies in idiopathic normal pressure hydrocephalus2021

    • Author(s)
      Sakurai Anri、Tsunemi Taiji、Ishiguro Yuta、Okuzumi Ayami、Hatano Taku、Hattori Nobutaka
    • Journal Title

      Journal of Neurology

      Volume: 269 Issue: 4 Pages: 2022-2029

    • DOI

      10.1007/s00415-021-10778-1

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Shared Metabolic Profile of Caffeine in Parkinsonian Disorders2020

    • Author(s)
      Takeshige‐Amano Haruka、Saiki Shinji、Fujimaki Motoki、Ueno Shin‐Ichi、Li Yuanzhe、Hatano Taku、Ishikawa Kei‐Ichi、Oji Yutaka、Mori Akio、Okuzumi Ayami、Tsunemi Taiji、Daida Kensuke、Ishiguro Yuta、Imamichi Yoko、Nanmo Hisayoshi、Nojiri Shuko、Funayama Manabu、Hattori Nobutaka
    • Journal Title

      Movement Disorders

      Volume: 35 Issue: 8 Pages: 1438-1447

    • DOI

      10.1002/mds.28068

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Identifying Therapeutic Agents for Amelioration of Mitochondrial Clearance Disorder in Neurons of Familial Parkinson Disease.2020

    • Author(s)
      Yamaguchi A, Ishikawa KI, Inoshita T, Shiba-Fukushima K, Saiki S, Hatano T, Mori A, Oji Y, Okuzumi A, Li Y, Funayama M, Imai Y, Hattori N, Akamatsu W.
    • Journal Title

      Stem Cell Reports.

      Volume: 14 Pages: 1060-1075

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Variants in saposin D domain of prosaposin gene linked to Parkinson’s disease2020

    • Author(s)
      Oji Y, Hatano T, Ueno SI, Funayama M, Ishikawa KI, Okuzumi A, Noda S, Sato S, Satake W, Toda T, Li Y, Hino-Takai T, Kakuta S, Tsunemi T, Yoshino H, Nishioka K, Hattori T, Mizutani Y, Mutoh T, Yokochi F, et al.
    • Journal Title

      Brain

      Volume: 143 Issue: 4 Pages: 1190-1205

    • DOI

      10.1093/brain/awaa064

    • Related Report
      2020 Research-status Report 2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Preserved proteinase K-resistant core after amplification of alpha-synuclein aggregates: Implication to disease-related structural study2020

    • Author(s)
      Yoshinaga Saki、Yamanaka Tomoyuki、Miyazaki Haruko、Okuzumi Ayami、Hiyama Akiko、Murayama Shigeo、Nukina Nobuyuki
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 522 Issue: 3 Pages: 655-661

    • DOI

      10.1016/j.bbrc.2019.11.142

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Nonmercaptalbumin as an oxidative stress marker in Parkinson's and PARK2 disease2020

    • Author(s)
      Ueno SI, Hatano T, Okuzumi A, Saiki S, Oji Y, Mori A, Koinuma T, Fujimaki M, Takeshige-Amano H, Kondo A, Yoshikawa N, Nojiri T, Kurano M, Yasukawa K, Yatomi Y, Ikeda H, Hattori N
    • Journal Title

      Ann Clin Transl Neurol

      Volume: 7 Issue: 3 Pages: 307-317

    • DOI

      10.1002/acn3.50990

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Mutations in CHCHD2 cause α-synuclein aggregation2019

    • Author(s)
      Ikeda A., Nishioka K., Meng H., Takanashi M., Hasegawa I., Inoshita T., Shiba-Fukushima K., Li Y., Yoshino H., Mori A., Okuzumi A., Yamaguchi A., Nonaka R., Izawa N., Ishikawa K.I., Saiki H., Morita M., Hasegawa M., Hasegawa K., Elahi M., et al.
    • Journal Title

      Human Molecular Genetics

      Volume: 28 Issue: 23 Pages: 3895-3911

    • DOI

      10.1093/hmg/ddz241

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Plasma metabolite biomarkers for multiple system atrophy and progressive supranuclear palsy2019

    • Author(s)
      Mori Akio、Ishikawa Kei-Ichi、Saiki Shinji、Hatano Taku、Oji Yutaka、Okuzumi Ayami、Fujimaki Motoki、Koinuma Takahiro、Ueno Shin-Ichi、Imamichi Yoko、Hattori Nobutaka
    • Journal Title

      PLOS ONE

      Volume: 14 Issue: 9 Pages: e0223113-e0223113

    • DOI

      10.1371/journal.pone.0223113

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Parkinson's disease-associated iPLA2-VIA/PLA2G6 regulates neuronal functions and α-synuclein stability through membrane remodeling.2019

    • Author(s)
      Mori A, Hatano T, Inoshita T, Shiba-Fukushima K, Koinuma T, Meng H, Kubo SI, Spratt S, Cui C, Yamashita C, Miki Y, Yamamoto K, Hirabayashi T, Murakami M, Takahashi Y, Shindou H, Nonaka T, Hasegawa M, Okuzumi A, Imai Y, Hattori N.
    • Journal Title

      Proc Natl Acad Sci U S A.

      Volume: 116(41) Issue: 41 Pages: 20689-20699

    • DOI

      10.1073/pnas.1902958116

    • NAID

      120007132272

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Neuromelanin or DaT-SPECT: which is the better marker for discriminating advanced Parkinson's disease?2019

    • Author(s)
      Okuzumi A, Hatano T, Kamagata K, Hori M, Mori A, Oji Y, Taniguchi D, Daida K, Shimo Y, Yanagisawa N, Nojiri S, Aoki S, Hattori N
    • Journal Title

      Eur J Neurol

      Volume: 26 Issue: 11 Pages: 1408-1416

    • DOI

      10.1111/ene.14009

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] Identification of seral disease-specific alpha-synuclein seeds using IP-RT-QuIC2022

    • Author(s)
      奥住文美、波田野 琢、松本弦、貫名信行、服部信孝
    • Organizer
      第63回日本神経学会学術大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Identification of disease-specific alpha-synuclein seeds in serum by IP-RT-QuIC2021

    • Author(s)
      Okuzumi A, HatanoT. Hattori N
    • Organizer
      第61回日本神経学会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] シヌクレイノパチーの次世代標的2020

    • Author(s)
      奥住 文美, 波田野 琢, 貫名 信行, 服部 信孝
    • Organizer
      第61回日本神経学会学術大会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Parkinson’s disease-associated mutations of PLA2G6 alters the membrane dynamics and α-synuclein stability2019

    • Author(s)
      Mori A, Hatano T, Inoshita T, Fukushima-Shiba K, Koinuma T, Yamashita C, Okuzumi A, Imai Y, Hattori N
    • Organizer
      2019 International Congress of Parkinson’s Disease and Movement Disorders
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Serum non-mercaptalbumin as a potential biomarker in Parkinson’s disease and related disorders2019

    • Author(s)
      Ueno S, Hatano T, Okuzumi A, Saiki A, Oji Y, Mori A, Koinuma T, Fujimaki M, Takeshige-Amano H, Yasukawa K, Yatomi Y, Ikeda H, Hattori N
    • Organizer
      2019 International Congress of Parkinson’s Disease and Movement Disorders
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] PARK2の白質障害は酸化ストレスマーカーと関連する2019

    • Author(s)
      波田野 琢, 鎌形 康司, 濃沼 崇博, 森 聡生, 王子 悠, 奥住 文美, 堀 正明, 青木 茂樹, 服部 信孝
    • Organizer
      第13回パーキンソン病・運動障害疾患コングレス
    • Related Report
      2019 Research-status Report
  • [Presentation] 拡散テンソル画像を用いたPARK2の白質変化について2019

    • Author(s)
      濃沼 崇博, 波田野 琢, 鎌形 康二, 奥住 文美, 森 聡生, 王子 悠, 堀 正明, 青木 茂樹, 服部 信孝
    • Organizer
      第13回パーキンソン病・運動障害疾患コングレス
    • Related Report
      2019 Research-status Report
  • [Presentation] alpha-synucleinの伝播抑制因子の探索と複合療法の検討2019

    • Author(s)
      奥住 文美, 波田野 琢, 福原 武志, 常深 泰司, 貫名 信行, 服部 信孝
    • Organizer
      第13回パーキンソン病・運動障害疾患コングレス
    • Related Report
      2019 Research-status Report
  • [Presentation] パーキンソン病関連疾患鑑別における脂肪酸β酸化変化のバイオマーカーとしての有効性2019

    • Author(s)
      竹重 遥香, 斉木 臣二, 藤巻 基紀, 波田野 琢, 石川 景一, 森 聡生, 王子 悠, 奥住 文美, 濃沼 崇博, 上野 真一, 今道 洋子, 野尻 宗子, 天羽 拓, 服部 信孝
    • Organizer
      第13回パーキンソン病・運動障害疾患コングレス
    • Related Report
      2019 Research-status Report
  • [Presentation] MSAとPSPの血漿バイオマーカー2019

    • Author(s)
      森 聡生, 石川 景一, 斉木 臣二, 波田野 琢, 王子 悠, 奥住 文美, 藤巻 基紀, 濃沼 崇博, 上野 真一, 今道 洋子, 服部 信孝
    • Organizer
      第13回パーキンソン病・運動障害疾患コングレス
    • Related Report
      2019 Research-status Report
  • [Presentation] パーキンソン病・PARK2患者におけるバイオマーカーとしての酸化型アルブミン測定2019

    • Author(s)
      上野 真一, 波田野 琢, 奥住 文美, 斉木 臣二, 王子 悠, 森 聡生, 濃沼 崇博, 藤巻 基紀, 安川 惠子, 矢冨 裕, 池田 均, 服部 信孝
    • Organizer
      第13回パーキンソン病・運動障害疾患コングレス
    • Related Report
      2019 Research-status Report
  • [Presentation] αシヌクレインシードのプリオン様伝播における神経回路を介した急速播種2019

    • Author(s)
      奥住文美, 波田野琢,服部信孝
    • Organizer
      カテコールアミンと神経疾患研究会2019
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 脳機能ミクロネットワークを介したアルファシヌクレインの伝播2019

    • Author(s)
      奥住文美, 波田野琢,服部信孝
    • Organizer
      これからのパーキンソン病を考える会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Book] Recent Findings and Imaging Technology to Evaluate the Possible Effect of Pre-Existing Nerve Injury and Neurological Symptoms.2020

    • Author(s)
      Yukio Imamura, Risa Yamano, Yuki Murakami, Ayami Okuzumi, Hisatake Matsumoto.
    • Total Pages
      35
    • Publisher
      Nova Science
    • ISBN
      9781536189148
    • Related Report
      2020 Research-status Report
  • [Book] Clinical Neuroscience372019

    • Author(s)
      奥住 文美, 波田野 琢, 服部 信孝
    • Total Pages
      4
    • Publisher
      中外医学社
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2024-01-30  

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