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Analysis of cone photoreceptors which determine central vision using iPSC-derived organoids

Research Project

Project/Area Number 18K16964
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 56060:Ophthalmology-related
Research InstitutionKeio University

Principal Investigator

TODA Eriko  慶應義塾大学, 医学部(信濃町), 研究員 (90722992)

Project Period (FY) 2018-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2019: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2018: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords加齢黄斑変性 / iPS細胞 / 3次元培養 / 網膜 / 視細胞 / 黄斑
Outline of Final Research Achievements

We established an experimental system to analyze cone photoreceptor cells selectively, using human iPS cells and the organoid culture. We performed genome editing in iPS cells to label cone photoreceptor cells with fluorescence after differentiation. Then, we cultured retinal organoids to selectively collect the cone photoreceptor cells by flow cytometry. The system would help analyze the basic data for future development of transplantation and neuroprotective therapy.

Academic Significance and Societal Importance of the Research Achievements

近年の高齢化社会で増加した加齢黄斑変性は、網膜の中心である黄斑部を障害し、失明原因として国内第4位、米国の第1位を占める。視力確保のためには黄斑部網膜視細胞、すなわち錐体視細胞に対する介入治療が必須であるが、マウスには黄斑がなく錐体視細胞の研究はまだあまり進んでいない。そこで、ヒト細胞を用いて錐体視細胞の形成と維持のメカニズムを解明する本研究は、将来の新規網膜黄斑部治療の開発につなげる大きな意義を持つ。ヒトiPS細胞を使い、より生体に近い3次元組織培養を用いて、蛍光標識により選択的に回収した錐体視細胞を解析する本研究は、人類の中心視力確保というニーズに即した社会的意義のある研究である。

Report

(3 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • Research Products

    (4 results)

All 2020 2019

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (1 results)

  • [Journal Article] Neuroprotective and vision‐protective effect of preserving ATP levels by AMPK activator2020

    • Author(s)
      Kawashima Hirohiko、Ozawa Yoko、Toda Eriko、Homma Kohei、Osada Hideto、Narimatsu Toshio、Nagai Norihiro、Tsubota Kazuo
    • Journal Title

      The FASEB Journal

      Volume: 34 Issue: 4 Pages: 5016-5026

    • DOI

      10.1096/fj.201902387rr

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Dietary Spirulina Supplementation Protects Visual Function From Photostress by Suppressing Retinal Neurodegeneration in Mice2019

    • Author(s)
      Okamoto Tomohiro、Kawashima Hirohiko、Osada Hideto、Toda Eriko、Homma Kohei、Nagai Norihiro、Imai Yasuyuki、Tsubota Kazuo、Ozawa Yoko
    • Journal Title

      Translational Vision Science & Technology

      Volume: 8 Issue: 6 Pages: 20-20

    • DOI

      10.1167/tvst.8.6.20

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Aquaporin 4 Suppresses Neural Hyperactivity and Synaptic Fatigue and Fine-Tunes Neurotransmission to Regulate Visual Function in the Mouse Retina2019

    • Author(s)
      Ozawa Yoko、Toda Eriko、Kawashima Hirohiko、Homma Kohei、Osada Hideto、Nagai Norihiro、Abe Yoichiro、Yasui Masato、Tsubota Kazuo
    • Journal Title

      Molecular Neurobiology

      Volume: 56 Issue: 12 Pages: 8124-8135

    • DOI

      10.1007/s12035-019-01661-2

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Adiponectin receptor 1 欠損マウスにおける網膜変性の解析.2019

    • Author(s)
      長田秀斗, 川島弘彦, 戸田枝里子, 本間耕平, 小川護, 有田誠, 坪田一男, 小沢洋子
    • Organizer
      第42回日本分子生物学会年会
    • Related Report
      2019 Annual Research Report

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Published: 2018-04-23   Modified: 2021-02-19  

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