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Establishment of an aging brain environment model as a basis for iPS cell research on neurodegenerative diseases.

Research Project

Project/Area Number 19K16930
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

Takahiro Shiga  順天堂大学, 大学院医学研究科, 特任助教 (50784378)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2019: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
KeywordsiPS細胞 / パーキンソン病 / 老化 / アストロサイト / グリア / 神経変性疾患 / 疾患モデル
Outline of Research at the Start

iPS細胞を用いた神経変性疾患モデル研究は病変部位の採取が困難な神経変性疾患の病態解
明と創薬において画期的なツールと考えられているが、短期培養での高齢発症疾患の再現が難しく、患者剖検脳に見られる病態をin vitroで再現することは現状では不可能である。本研究計画の目的は、申請者が確立している①老化を促進させる低分子化合物、②効率的なグリア系細胞への誘導の2つの技術を応用して、平面上に細胞間相互作用と時間軸を考慮した高齢期の脳構造を模倣した新たな神経疾患モデルを確立し、これまで再現できなかった高齢発症神経変性疾患の病態を再現することにより、その病態解析および創
薬に応用することを目指す。

Outline of Final Research Achievements

In recent years, it has become necessary to reproduce the complex network of the brain environment in iPS cell-based neurodegenerative disease models, and three-dimensional culture has been attracting attention. However, it is difficult to reproduce the brain structure during aging, and the pathological conditions observed in patient autopsy brains have not been clearly detected.
In this study, while using conventional 2D culture, we constructed a pathological analysis system for neurodegenerative diseases by combining aging and mimicry of the brain environment including cell-cell interactions, and developed a basic system to achieve highly accurate pathological analysis and drug discovery, which could not be achieved by conventional stand-alone culture or 3D culture. These research results were presented at conferences as appropriate, and some of them were applied for patents.

Academic Significance and Societal Importance of the Research Achievements

本研究で確立された技術は、多検体の高齢発症神経変性疾患病態解析や創薬スクリーニングに適した手法の開発を目的として構築した基盤システムであり、従来の単層培養法と比較してして高精度な結果を得ることができる。さらに、時間軸・脳内環境を模倣したモデルのため、ヒト剖検脳に近いデータを取得できる可能性を秘めている。また、様々な神経変性疾患にも応用可能なシステムなため、効率的に病態表現型や創薬スクリーニング行うことができる。

Report

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

    (9 results)

All 2022 2021 2020 2019

All Journal Article (6 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 6 results,  Open Access: 6 results) Presentation (2 results) (of which Int'l Joint Research: 1 results) Patent(Industrial Property Rights) (1 results) (of which Overseas: 1 results)

  • [Journal Article] Increased excitability of human iPSC-derived neurons in HTR2A variant-related sleep bruxism2022

    • Author(s)
      Sarkar Avijite Kumer、Nakamura Shiro、Nakai Kento、Sato Taro、Shiga Takahiro、Abe Yuka、Hoashi Yurie、Inoue Tomio、Akamatsu Wado、Baba Kazuyoshi
    • Journal Title

      Stem Cell Research

      Volume: 59 Pages: 102658-102658

    • DOI

      10.1016/j.scr.2022.102658

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Generation of two iPSC lines from siblings of a homozygous patient with hearing loss and a heterozygous carrier with normal hearing carrying p.G45E/Y136X mutation in GJB22021

    • Author(s)
      Fukunaga Ichiro、Oe Yoko、Danzaki Keiko、Ohta Sayaka、Chen Cheng、Iizumi Madoka、Shiga Takahiro、Matsuoka Rina、Anzai Takashi、Hibiya-Motegi Remi、Tajima Shori、Ikeda Katsuhisa、Akamatsu Wado、Kamiya Kazusaku
    • Journal Title

      Stem Cell Research

      Volume: 53 Pages: 102290-102290

    • DOI

      10.1016/j.scr.2021.102290

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] In vitro monitoring of HTR2A-positive neurons derived from human-induced pluripotent stem cells2021

    • Author(s)
      Nakai Kento、Shiga Takahiro、Yasuhara Rika、Sarkar Avijite Kumer、Abe Yuka、Nakamura Shiro、Hoashi Yurie、Kotani Keisuke、Tatsumoto Shoji、Ishikawa Hiroe、Go Yasuhiro、Inoue Tomio、Mishima Kenji、Akamatsu Wado、Baba Kazuyoshi
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 15437-15437

    • DOI

      10.1038/s41598-021-95041-3

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Establishment of an in vitro model for analyzing mitochondrial ultrastructure in PRKN-mutated patient iPSC-derived dopaminergic neurons2021

    • Author(s)
      Yokota Mutsumi、Kakuta Soichiro、Shiga Takahiro、Ishikawa Kei-ichi、Okano Hideyuki、Hattori Nobutaka、Akamatsu Wado、Koike Masato
    • Journal Title

      Molecular Brain

      Volume: 14 Issue: 1 Pages: 58-58

    • DOI

      10.1186/s13041-021-00771-0

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Generation of two induced pluripotent stem cell lines from PBMCs of siblings carrying c.235delC mutation in the GJB2 gene associated with sensorineural hearing loss2020

    • Author(s)
      Fukunaga Ichiro、Shirai Kyoko、Oe Yoko、Danzaki Keiko、Ohta Sayaka、Shiga Takahiro、Chen Cheng、Ikeda Katsuhisa、Akamatsu Wado、Kawano Atsushi、Kamiya Kazusaku
    • Journal Title

      Stem Cell Research

      Volume: 47 Pages: 101910-101910

    • DOI

      10.1016/j.scr.2020.101910

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Generation of the induced pluripotent stem cell (hiPSC) line (JUFMDOi004-A) from a patient with hearing loss carrying GJB2 (p.V37I) mutation2020

    • Author(s)
      Fukunaga Ichiro、Shiga Takahiro、Chen Cheng、Oe Yoko、Danzaki Keiko、Ohta Sayaka、Matsuoka Rina、Anzai Takashi、Hibiya-Motegi Remi、Tajima Shori、Ikeda Katsuhisa、Akamatsu Wado、Kamiya Kazusaku
    • Journal Title

      Stem Cell Research

      Volume: 43 Pages: 101674-101674

    • DOI

      10.1016/j.scr.2019.101674

    • Related Report
      2020 Research-status Report 2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] iPSC-based disease modeling for late onset neurodegenerative diseases using a chemical compound accelerating senescence2020

    • Author(s)
      志賀孝宏
    • Organizer
      第16回 成体脳ニューロン新生懇談会
    • Related Report
      2019 Research-status Report
  • [Presentation] iPSC-based disease modeling for late onset neurodegenerative diseases using a chemical compound accelerating senescence2019

    • Author(s)
      Takahiro Shiga
    • Organizer
      International Society for Stem Cell Research
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Patent(Industrial Property Rights)] 神経細胞の成熟老化促進剤2019

    • Inventor(s)
      赤松和土、志賀孝宏、岡野栄之、葛巻直子
    • Industrial Property Rights Holder
      順天堂大学
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2019-073340
    • Filing Date
      2019
    • Related Report
      2019 Research-status Report
    • Overseas

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Published: 2019-04-18   Modified: 2023-01-30  

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