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Visualizing Pathological Changes in Parkinson's Disease with Quantum Dots and Exploring New Biomarkers for Potential Therapeutic Interventions

Research Project

Project/Area Number 20K21587
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 52:General internal medicine and related fields
Research InstitutionKyoto University (2022-2023)
Doshisha University (2020-2021)

Principal Investigator

Imamura Yukio  京都大学, 工学研究科, 研究員 (90447954)

Co-Investigator(Kenkyū-buntansha) 貫名 信行  同志社大学, 脳科学研究科, 教授 (10134595)
奥住 文美  順天堂大学, 医学部, 准教授 (90826075)
下郡 智美  国立研究開発法人理化学研究所, 脳神経科学研究センター, チームリーダー (30391981)
村上 由希  関西医科大学, 医学部, 講師 (50580106)
Project Period (FY) 2020-07-30 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2020: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
KeywordsParkinson disease / パーキンソン病 / 多系統萎縮症 / アルファシヌクレイン / 量子ドット
Outline of Research at the Start

パーキンソン病はα-シヌクレインタンパク質の凝集体が見られ、脳神経細胞の脱落が主たる病因である。しかし、現時点ではα-シヌクレイン凝集体の脳神経間伝達過程における有効な生体指標がなく、根治は難しい。本研究では、一分子マーカーとして分子動態の研究に用いられている量子ドットおよび病態細胞の解析手法に着目し、量子ドットを一分子マーカーとし、病態細胞の網羅的機能解析に応用することにより、これまでは技術的に難しかった分画した細胞内画分の網羅的解析より細胞内の小器官における新しい病態機能分子を見つけることに挑戦する。

Outline of Final Research Achievements

This research report focuses on deepening the understanding of the etiology and progression mechanisms of Parkinson's disease. The study aimed to elucidate the dynamics of α-synuclein protein aggregates and their propagation mechanisms between neurons, utilizing quantum dot imaging technology. This approach enabled the visualization of these aggregates' dynamics, contributing to the development of new disease models that could aid in early diagnosis and the development of new treatments for Parkinson's disease. The identification of drugs that can inhibit the progression of the disease was also achieved. These research findings are expected to significantly impact the understanding and treatment of Parkinson's disease in an aging society.

Academic Significance and Societal Importance of the Research Achievements

この研究の学術的意義は、パーキンソン病の原因物質であるα-シヌクレインタンパク質の凝集体とその伝播メカニズムを明らかにする新しい手法を開発した点にあります。特に、量子ドットを用いたイメージング技術により、これらの凝集体の動態を詳細に追跡し、その結果を基に早期診断や治療法の開発に繋げることが可能となりました。社会的意義としては、高齢化が進む社会において、パーキンソン病の患者が増加する中、本研究による新たな治療法や診断技術の開発は、多くの患者の生活の質の向上に寄与するとともに、医療費の削減にも繋がると期待されます。

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

    (19 results)

All 2023 2022 2021 2020 2019 Other

All Journal Article (12 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 12 results,  Open Access: 7 results) Presentation (3 results) (of which Invited: 1 results) Book (2 results) Remarks (1 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Maternal Inflammation with Elevated Kynurenine Metabolites is Related to the Risk of Abnormal Brain Development and Behavioral Changes in Autism Spectrum Disorder.2023

    • Author(s)
      Murakami Y, Imamura Y, Kasahara Y, Yoshida C, Momono Y, Feng K, Sakai D, Konishi Y, Nishiyama T
    • Journal Title

      cells

      Volume: 12 Issue: 7 Pages: 1087-1087

    • DOI

      10.3390/cells12071087

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Ultrasound stimulation of the vagal nerve improves acute septic encephalopathy in mice2023

    • Author(s)
      Imamura Yukio、Matsumoto Hisatake、Imamura Jun、Matsumoto Naoya、Yamakawa Kazuma、Yoshikawa Nao、Murakami Yuki、Mitani Satoko、Nakagawa Junichiro、Yamada Tomoki、Ogura Hiroshi、Oda Jun、Shimazu Takeshi
    • Journal Title

      Frontiers in Neuroscience

      Volume: 17 Pages: 1-14

    • DOI

      10.3389/fnins.2023.1211608

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] スマートフォンアプリ利用による高齢者の脳活性化とQOL維持への考察 健康医学的観点への示唆2023

    • Author(s)
      今村行雄、笹谷匠生、村上由希、宮崎崇文、孔相権、西山利正、三浦研
    • Journal Title

      日本健康医学会誌

      Volume: 32 Pages: 264-265

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The Short-form Version of the Depression Anxiety Stress Scale (DASS-21) : Reliability and Validity in Female Japanese Undergraduate Students2022

    • Author(s)
      村上 由希、今村 行雄、三谷 智子
    • Journal Title

      JOURNAL OF JAPAN HEALTH MEDICINE ASSOCIATION

      Volume: 31 Issue: 3 Pages: 380-389

    • DOI

      10.20685/kenkouigaku.31.3_380

    • ISSN
      1343-0025, 2423-9828
    • Year and Date
      2022-10-07
    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Amyloids facilitate DNA transfection in vivo2022

    • Author(s)
      Imamura Yukio、Hiyama Akiko、Miyazaki Haruko、Yamanaka Tomoyuki、Nukina Nobuyuki
    • Journal Title

      Neuroscience Research

      Volume: S0168-0102 Pages: 78-5

    • DOI

      10.1016/j.neures.2022.03.003

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Sepsis-Associated Encephalopathy: A Mini-Review of Inflammation in the Brain and Body2022

    • Author(s)
      Ito Hiroshi、Hosomi Sanae、Koyama Yoshihisa、Matsumoto Hisatake、Imamura Yukio、Ogura Hiroshi、Oda Jun
    • Journal Title

      Frontiers in Aging Neuroscience

      Volume: 14 Pages: 1-9

    • DOI

      10.3389/fnagi.2022.912866

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [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 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Maternal immune activation related to neurodevelopmental disorder‐like phenotype in mouse models2021

    • Author(s)
      村上 由希、今村 行雄、酒井 大輔、小西 行郎
    • Journal Title

      Japanese Journal of Biological Psychiatry

      Volume: 32 Issue: 3 Pages: 120-123

    • DOI

      10.11249/jsbpjjpp.32.3_120

    • NAID

      130008091888

    • ISSN
      2186-6465, 2186-6619
    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] The Effects of Maternal Interleukin-17A on Social Behavior, Cognitive Function, and Depression-Like Behavior in Mice with Altered Kynurenine Metabolites2021

    • Author(s)
      Murakami Yuki、Imamura Yukio、Kasahara Yoshiyuki、Yoshida Chihiro、Momono Yuta、Fang Ke、Nishiyama Toshimasa、Sakai Daisuke、Konishi Yukuo
    • Journal Title

      International Journal of Tryptophan Research

      Volume: 14 Pages: 1-22

    • DOI

      10.1177/11786469211026639

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Proteomic analysis of subcellular compartments containing disseminated alpha-synuclein seeds2020

    • Author(s)
      Kasahara Junya、Imamura Yukio、Hiyama Akiko、Yamanaka Tomoyuki、Miyazaki Haruko、Nukina Nobuyuki
    • Journal Title

      Neuroscience Research

      Volume: 20 Pages: 30494-6

    • DOI

      10.1016/j.neures.2020.11.009

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] 生理指標を用いた空間評価手法に関する基礎的研究(その4)被験者数の増加が異なる食事提供プロセスと表情の関係に及ぼす影響2020

    • Author(s)
      馬淵 竜樹、宮崎 崇文、三浦 研、三谷 智子、村上 由希、今村 行雄、孔 相権
    • Journal Title

      日本建築学会中国支部研究報告集 日本建築学会中国支部 編

      Volume: 443 Pages: 553-556

    • NAID

      40022177861

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Altered kynurenine pathway metabolites in a mouse model of human attention-deficit hyperactivity/autism spectrum disorders: A potential new biological diagnostic marker.2019

    • Author(s)
      Murakami Y, Imamura Y, Saito K, Sakai D
    • Journal Title

      Scientific reports

      Volume: 10(1) Issue: 1 Pages: 1-15

    • DOI

      10.1038/s41598-020-60585-3

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 看護労働における筋骨格系障害の原因2023

    • Author(s)
      久保田あや子、三宅真里、村上由希、今村行雄、西山利正
    • Organizer
      日本健康医学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 敗血症性脳症の積極的治療介入方法の探索2022

    • Author(s)
      今村 行雄, 松本 寿健, 松本 直也, 今村 純, 山川 一馬, 吉川 直, 精山 明敏, 村上 由希, 三谷 智子, 中川 淳一郎, 山田 智輝, 室谷 卓, 島崎 淳也, 小倉 裕司, 織田 順, 嶋津 岳士
    • Organizer
      第49回 日本集中治療学会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] クラッシュ症候群におけるサイトカインネットワークと臓器障害の関連2020

    • Author(s)
      松本寿健、小倉裕司、清水健太郎、今村行雄、嶋津岳士
    • Organizer
      日本外傷学会
    • Related Report
      2020 Research-status Report
  • [Book] 脳と救急医療のマジックブック2023

    • Author(s)
      今村 行雄
    • Total Pages
      34
    • Publisher
      KDP Publishing
    • Related Report
      2023 Annual Research Report
  • [Book] Advances in health and disease2020

    • Author(s)
      Yukio Imamura, Risa Yamano, Yuki Murakami, Ayami Okuzumi, Hisatake Matsumoto
    • Total Pages
      35
    • Publisher
      Nova Science publisher
    • ISBN
      9781536188561
    • Related Report
      2020 Research-status Report
  • [Remarks] 【同志社大学特集】ウイルスを用いないin vivo遺伝子導入法の開発

    • URL

      https://kyoju.net/2021/12/27/2021-12-27-4/

    • Related Report
      2021 Research-status Report
  • [Patent(Industrial Property Rights)] 遺伝子の導入方法及び導入キット2020

    • Inventor(s)
      貫名信行、今村行雄
    • Industrial Property Rights Holder
      貫名信行、今村行雄
    • Industrial Property Rights Type
      特許
    • Filing Date
      2020
    • Related Report
      2021 Research-status Report

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Published: 2020-08-03   Modified: 2025-01-30  

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