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Investigation of the cell protective abilities of branched chain amino acids in mouse models of retinal neurodegenerative diseases

Research Project

Project/Area Number 16K20316
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Ophthalmology
Research InstitutionKyoto University

Principal Investigator

Iwai Sachiko  京都大学, 医学研究科, 特定研究員 (00768905)

Co-Investigator(Renkei-kenkyūsha) IKEDA hanako  京都大学, 医学部附属病院 臨床研究総合センター, 准教授 (20372162)
HASEGAWA tomoko  京都大学, 医学研究科, 研究員 (90802760)
Research Collaborator YOSHIMURA nagahisa  
IIDA yuto  
KAWAGUCHI eri  
SUETHUGU masami  
Project Period (FY) 2016-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords分岐鎖アミノ酸 / BCAA / 網膜色素変性 / 緑内障 / 網膜保護 / 加齢黄斑変性 / 眼細胞生物学
Outline of Final Research Achievements

Retinal neuronal cell death underlies many incurable eye diseases such as retinitis pigmentosa and glaucoma. We demonstrated that branched chain amino acids (BCAAs) can increase ATP production by enhancing glycolysis and protect cells from cell death. Administration of BCAAs to mouse models of retinal degeneration, rd10 mice, significantly attenuated photoreceptor cell death both morphologically and functionally. Administration of BCAAs to mouse models of glaucoma, GLAST K/O mice, also significantly attenuated retinal ganglion cell death. These results suggest that administration of BCAAs could contribute to a comprehensive therapeutic strategy for retinal neurodegenerative diseases such as retinitis pigmentosa and glaucoma.

Report

(3 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • Research Products

    (3 results)

All 2018 2017

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

  • [Journal Article] Branched chain amino acids attenuate major pathologies in mouse models of retinal degeneration and glaucoma2018

    • Author(s)
      Hasegawa Tomoko、Ikeda Hanako Ohashi、Iwai Sachiko、Muraoka Yuki、Tsuruyama Tatsuaki、Okamoto-Furuta Keiko、Kohda Haruyasu、Kakizuka Akira、Yoshimura Nagahisa
    • Journal Title

      Heliyon

      Volume: 4 Issue: 2 Pages: e00544-e00544

    • DOI

      10.1016/j.heliyon.2018.e00544

    • NAID

      120006425863

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Reduction of lipid accumulation rescues Bietti’s crystalline dystrophy phenotypes2018

    • Author(s)
      Hata Masayuki、Ikeda Hanako O.、Iwai Sachiko、Iida Yuto、Gotoh Norimoto、Asaka Isao、Ikeda Kazutaka、Isobe Yosuke、Hori Aya、Nakagawa Saori、Yamato Susumu、Arita Makoto、Yoshimura Nagahisa、Tsujikawa Akitaka
    • Journal Title

      Proceedings of the National Academy of Sciences

      Volume: 115 Issue: 15 Pages: 3936-3941

    • DOI

      10.1073/pnas.1717338115

    • NAID

      120006416205

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] KUS121, a VCP modulator, attenuates ischemic retinal cell death via suppressing endoplasmic reticulum stress.2017

    • Author(s)
      Hata M, Ikeda HO, Kikkawa C, Iwai S, Muraoka Y, Hasegawa T, Kakizuka A, Yoshimura N
    • Journal Title

      Sci Rep

      Volume: - Issue: 1 Pages: 44873-44873

    • DOI

      10.1038/srep44873

    • NAID

      120006222005

    • Related Report
      2017 Annual Research Report 2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant

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Published: 2016-04-21   Modified: 2019-03-29  

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