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Studies on Age Related Hearing Loss Using Transgenic Mice

Research Project

Project/Area Number 16K11170
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Otorhinolaryngology
Research InstitutionTohoku University

Principal Investigator

Suzuki Jun  東北大学, 大学病院, 助教 (80735895)

Co-Investigator(Kenkyū-buntansha) 稲田 仁  東北大学, 医学系研究科, 講師 (60419893)
Research Collaborator Katori Yukio  
Osumi Noriko  
Someya Shinichi  
Liberman M. Charles  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
KeywordsFabp7 / 加齢性難聴 / 蝸牛 / ω-3多価不飽和脂肪酸 / 遺伝子改変マウス / 感音難聴 / アストロサイト / Fat-1 / 難聴 / ω-3脂肪酸 / Cdh23 / ミトコンドリア / 酸化ストレス / 脂肪酸結合タンパク質 / 多価不飽和脂肪酸 / 耳科学
Outline of Final Research Achievements

Results of this study revealed that (1) cultured astrocytes have sex differences in mitochondrial respiration, and a high ability to induce beta-oxidation; (2) adeno-associated virus injection into the posterior semicircular canal successfully transduces genes to hair cells in an adult cochlea; (3) studies on hearing loss using traditional transgenic mice on C57BL/6 background have the “passenger gene” problem as to the Cdh23 gene; (4) enriched endogenous n-3 PUFAs produced due to the expression of the Fat-1 transgene partially alleviate age-related hearing loss in male C57BL/6 mice.

Academic Significance and Societal Importance of the Research Achievements

感音難聴は主に内耳の蝸牛の障害で生じる聴覚障害であり、加齢性難聴や音響性聴覚障害(音響外傷・騒音性難聴等)が代表的である。感音難聴の発症メカニズムの多くは未だ不明であり、有効な治療や予防法は確立されていない。本研究によって、①アストロサイトのミトコンドリア機能に関する基礎的データの入手、②内耳への遺伝子導入系の確立、③遺伝子改変マウスの表現型を評価する際の注意点に関する知見、④ω-3脂肪酸負荷が加齢性難聴の進行を抑制するというデータの入手が可能であった。本研究の成果により、感音難聴に対する研究が今後より進んでいくことが期待される。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (10 results)

All 2018 2017 2016 Other

All Int'l Joint Research (3 results) Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (5 results) (of which Int'l Joint Research: 2 results)

  • [Int'l Joint Research] ハーバード大学/フロリダ大学(米国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] ハーバード大学/フロリダ大学(米国)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] ハーバード大学/フロリダ大学(米国)

    • Related Report
      2016 Research-status Report
  • [Journal Article] Hearing recovery from deafness caused by bromate intoxication.2018

    • Author(s)
      Suzuki J, Takanashi Y, Koyama A, Katori Y
    • Journal Title

      J Laryngol Otol.

      Volume: 132 Issue: 11 Pages: 1039-1041

    • DOI

      10.1017/s0022215118002001

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Cochlear gene therapy with ancestral AAV in adult mice: complete transduction of inner hair cells without cochlear dysfunction.2017

    • Author(s)
      1.Suzuki J, Hashimoto K, Xiao R, Vandenberghe LH, Liberman MC.
    • Journal Title

      Scientific Reports

      Volume: 7 Issue: 1 Pages: 45524-45524

    • DOI

      10.1038/srep45524

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] C57BL/6背景の遺伝子改変マウスを用いた 難聴研究のピットホール2018

    • Author(s)
      鈴木 淳、本藏 陽平、川瀬 哲明、香取 幸夫
    • Organizer
      第28回日本耳科学会総会・学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Cochlear gene therapy with ancestral AAV in adult mice: complete transduction of inner hair cells without cochlear dysfunction2017

    • Author(s)
      Suzuki J, Hashimoto K, Xiao R, Vandenberghe LH, Liberman MC.
    • Organizer
      The 2017 Japan-NIH joint Symposium
    • Place of Presentation
      東北大学医学部星陵オーディトリアム(仙台)
    • Year and Date
      2017-02-15
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Cochlear gene therapy with ancestral AAV in adult mice: complete transduction of inner hair cells without cochlear dysfunction2017

    • Author(s)
      Suzuki J, Hashimoto K, Xiao R, Vandenberghe LH, Liberman MC.
    • Organizer
      The 14th Japan-Taiwan Japan-Taiwan Conference on Otolaryngology Head and Neck Surgery(台湾)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 祖先アデノ随伴ウイルス(AAV2/Anc80L65)を用いた成体マウスに対する蝸牛遺伝子治療法の確立2017

    • Author(s)
      鈴木 淳、橋本 研、香取 幸夫
    • Organizer
      第27回日本耳科学会総会
    • Related Report
      2017 Research-status Report
  • [Presentation] “Hidden hearing loss”に対する治療法の開発2016

    • Author(s)
      鈴木 淳
    • Organizer
      第11回内耳研究会
    • Place of Presentation
      京都府立医科大学北臨床講義棟(京都)
    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2022-02-21  

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