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Mitochondrial damage mediated by pressure gradient in glaucomatous optic neuropathy.

Research Project

Project/Area Number 20H03840
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 56060:Ophthalmology-related
Research InstitutionUniversity of Fukui

Principal Investigator

Inatani Masaru  福井大学, 学術研究院医学系部門, 教授 (40335245)

Co-Investigator(Kenkyū-buntansha) 高村 佳弘  福井大学, 学術研究院医学系部門, 准教授 (00283193)
有村 尚悟  福井大学, 学術研究院医学系部門(附属病院部), 助教 (20835029)
辻 隆宏  福井大学, 学術研究院医学系部門(附属病院部), 助教 (40787389)
Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2023: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Keywords緑内障
Outline of Research at the Start

篩状板を挟んだ圧較差がミトコンドリア障害を引き起こし、軸索輸送が停止することが緑内障視神経症の本質であることを明らかにするため、低脳脊髄液圧でのミトコンドリア軸索輸送のライブイメージング、圧較差勾配と軸索輸送との相関の証明、髄液漏患者の髄液圧と神経線維層厚、篩状板厚との相関を横断的に評価する。本研究によって、寿命が長く視覚が重要な霊長類にはなぜ篩状板があるのかという謎が解き明かされ、緑内障の病態解明と神経保護治療にも役立つ重要な知見が得られる。

Outline of Final Research Achievements

We used mice without lamina cribrosa to investigate the mechanism of optic nerve damage in glaucoma, observing the dynamics of mitochondria within retinal ganglion cell axons and changes in intracellular ATP gradients. Creating a glaucoma model, we observed an increase in mitochondrial distribution within the axons of retinal ganglion cells and a decrease in axonal movement. These findings suggest a potential impact on mitochondrial dynamics within neurons even in animals without lamina cribrosa. Concurrently, we observed mitochondrial stoppage within axons, accompanied by changes in intracellular ATP gradients. Specifically, changes in mitochondrial dynamics were thought to affect ATP supply within axons, potentially playing a crucial role in cell function and survival.

Academic Significance and Societal Importance of the Research Achievements

この研究から、緑内障視神経症における篩状板の役割に新しい概念をもたらすことができた。さらに、網膜神経節細胞の機能維持におけるミトコンドリアの役割と、網膜神経節細胞の細胞死の過程におけるミトコンドリアとATP勾配の役割を明らかにすることができた。本研究結果は、将来におけるヒトの緑内障の視神経障害の診断や治療に役立つ情報を提供できる可能性がある。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (29 results)

All 2023 2022 2021 2020 Other

All Journal Article (20 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 20 results,  Open Access: 15 results) Presentation (5 results) (of which Int'l Joint Research: 4 results,  Invited: 2 results) Remarks (4 results)

  • [Journal Article] Chronic Antioxidant Capacity Loss in Anterior Chamber Environment After Iridectomy2023

    • Author(s)
      Arimura Shogo、Iwasaki Kentaro、Neo Takuma、Orii Yusuke、Matsumura Takehiro、Takamura Yoshihiro、Oki Masaya、Inatani Masaru
    • Journal Title

      Translational Vision Science & Technology

      Volume: 12 Issue: 5 Pages: 4-4

    • DOI

      10.1167/tvst.12.5.4

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ocular Distribution of Brimonidine and Brinzolamide after Topical Instillation of a 0.1% Brimonidine Tartrate and 1% Brinzolamide Fixed-Combination Ophthalmic Suspension: An Interventional Study2023

    • Author(s)
      Orii Yusuke、Kunikane Eriko、Yamada Yutaka、Morioka Masakazu、Iwasaki Kentaro、Arimura Shogo、Mizuno Akemi、Inatani Masaru
    • Journal Title

      Journal of Clinical Medicine

      Volume: 12 Issue: 13 Pages: 4175-4175

    • DOI

      10.3390/jcm12134175

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Visual Evoked Potential Can Predict Deterioration of Visual Function After Direct Clipping of Paraclinoid Aneurysm With Anterior Clinoidectomy2023

    • Author(s)
      Kawajiri Satoshi、Isozaki Makoto、Komori Osamu、Yamada Shinsuke、Higashino Yorhifumi、Yamauchi Takahiro、Akazawa Ayumi、Kidoguchi Masamune、Yomo Munetaka、Kodera Toshiaki、Arishma Hidetaka、Awara Kousuke、Inatani Masaru、Kikuta Kenichiro
    • Journal Title

      Neurosurgery

      Volume: 92 Issue: 6 Pages: 1276-1286

    • DOI

      10.1227/neu.0000000000002363

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Long-term outcomes of Baerveldt glaucoma implant surgery in Japanese patients2023

    • Author(s)
      Iwasaki Kentaro、Komori Ryohei、Arimura Shogo、Orii Yusuke、Takamura Yoshihiro、Inatani Masaru
    • Journal Title

      Scientific Reports

      Volume: 13 Issue: 1 Pages: 14312-14312

    • DOI

      10.1038/s41598-023-41673-6

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Gene profiles and mutations in the development of cataracts in the ICR rat model of hereditary cataracts2023

    • Author(s)
      Takashima Masaru、Taniguchi Kei、Nagaya Masaya、Yamamura Shunki、Takamura Yoshihiro、Inatani Masaru、Oki Masaya
    • Journal Title

      Scientific Reports

      Volume: 13 Issue: 1 Pages: 18161-18161

    • DOI

      10.1038/s41598-023-45088-1

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Optic Nerve Injury Enhanced Mitochondrial Fission and Increased Mitochondrial Density without Altering the Uniform Mitochondrial Distribution in the Unmyelinated Axons of Retinal Ganglion Cells in a Mouse Model2023

    • Author(s)
      Tsuji Takahiro、Murase Tomoya、Konishi Yoshiyuki、Inatani Masaru
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 24 Issue: 5 Pages: 4356-4356

    • DOI

      10.3390/ijms24054356

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] iStent Trabecular Micro-bypass Stent Implantation Combined with Phacoemulsification for Open-Angle Glaucoma: A 2-Year Post-marketing Surveillance Study in Japan2022

    • Author(s)
      Inatani Masaru、Kohama Ichiro、Chu Alice
    • Journal Title

      Advances in Therapy

      Volume: 39 Issue: 9 Pages: 4076-4093

    • DOI

      10.1007/s12325-022-02207-0

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Atm inhibition decreases lens opacity in a rat model of galactose-induced cataract2022

    • Author(s)
      Nagaya Masaya、Kanada Fumito、Takashima Masaru、Takamura Yoshihiro、Inatani Masaru、Oki Masaya
    • Journal Title

      PLOS ONE

      Volume: 17 Issue: 9 Pages: 274735-274735

    • DOI

      10.1371/journal.pone.0274735

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Aqueous column changes in the episcleral veins after the instillation of ripasudil versus latanoprost: a randomized, double-blind, crossover clinical trial2022

    • Author(s)
      Suzuki Marie、Suzuki Yohei、Komori Ryohei、Orii Yusuke、Arimura Shogo、Iwasaki Kentaro、Takamura Yoshihiro、Inatani Masaru
    • Journal Title

      Scientific Reports

      Volume: 12 Issue: 1 Pages: 15255-15260

    • DOI

      10.1038/s41598-022-19271-9

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Comparing Surgical Outcomes in Neovascular Glaucoma between Tube and?Trabeculectomy2022

    • Author(s)
      Iwasaki Kentaro、Kojima Sachi、Wajima Ryotaro、Okazaki Tomoyuki、Yokoyama Yu、Inoue Toshihiro、Higashide Tomomi、Miki Atsuya、Nakazawa Toru、Inatani Masaru
    • Journal Title

      Ophthalmology Glaucoma

      Volume: 5 Issue: 6 Pages: 672-680

    • DOI

      10.1016/j.ogla.2022.05.003

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Application of moving particle semi-implicit (MPS) method on retro-oil fluid using three-dimensional vitreous cavity models from magnetic resonance imaging2022

    • Author(s)
      Gozawa Makoto、Watanabe Naoki、Iwasaki Kentaro、Takamura Yoshihiro、Inatani Masaru
    • Journal Title

      Scientific Reports

      Volume: 12 Issue: 1 Pages: 1735-1735

    • DOI

      10.1038/s41598-022-05886-5

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Intermitochondrial signaling regulates the uniform distribution of stationary mitochondria in axons2022

    • Author(s)
      Matsumoto Nozomu、Hori Ikuma、Kajita Masashi K.、Murase Tomoya、Nakamura Wataru、Tsuji Takahiro、Miyake Seiji、Inatani Masaru、Konishi Yoshiyuki
    • Journal Title

      Molecular and Cellular Neuroscience

      Volume: 119 Pages: 103704-103704

    • DOI

      10.1016/j.mcn.2022.103704

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Long-Term Outcomes of a Kahook Dual Blade Procedure Combined with Phacoemulsification in Japanese Patients with Open-Angle Glaucoma2022

    • Author(s)
      Iwasaki Kentaro、Kakimoto Hiroshi、Orii Yusuke、Arimura Shogo、Takamura Yoshihiro、Inatani Masaru
    • Journal Title

      Journal of Clinical Medicine

      Volume: 11 Issue: 5 Pages: 1354-1354

    • DOI

      10.3390/jcm11051354

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Prospective study of corneal endothelial cell loss after trabeculectomy2021

    • Author(s)
      Iwasaki Kentaro、Arimura Shogo、Takamura Yoshihiro、Inatani Masaru
    • Journal Title

      Acta Ophthalmologica

      Volume: 99 Issue: 4

    • DOI

      10.1111/aos.14561

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Comparison of 5-year outcomes between trabeculectomy combined with phacoemulsification and trabeculectomy followed by phacoemulsification: a retrospective cohort study2021

    • Author(s)
      Arimura Shogo、Iwasaki Kentaro、Orii Yusuke、Takamura Yoshihiro、Inatani Masaru
    • Journal Title

      BMC Ophthalmology

      Volume: 21 Issue: 1 Pages: 188-188

    • DOI

      10.1186/s12886-021-01949-9

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Prospective cohort study of risk factors for choroidal detachment after trabeculectomy.2020

    • Author(s)
      Iwasaki K, Kakimoto H, Arimura S, Takamura Y, Inatani M
    • Journal Title

      International Ophthalmology

      Volume: 40 Issue: 5 Pages: 1077-1083

    • DOI

      10.1007/s10792-019-01267-6

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Performances of glaucoma operations with Kahook Dual Blade or iStent combined with phacoemulsification in Japanese open angle glaucoma patients.2020

    • Author(s)
      Iwasaki K, Takamura Y, Orii Y, Arimura S, Inatani M.
    • Journal Title

      International Journal of Ophthalmology

      Volume: 13 Issue: 6 Pages: 941-945

    • DOI

      10.18240/ijo.2020.06.13

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Clinical practice preferences for glaucoma surgery in Japan: a survey of Japan Glaucoma Society specialists.2020

    • Author(s)
      Iwasaki K, Arimura S, Takamura Y, Inatani M
    • Journal Title

      Japanese Journal of Ophthalmology

      Volume: 64 Issue: 4 Pages: 385-391

    • DOI

      10.1007/s10384-020-00749-w

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Oxytocin induced epithelium-mesenchimal transition through Rho-ROCK pathway in ARPE-19 cells, a human retinal pigmental cell line2020

    • Author(s)
      Tsuji Takahiro、Inatani Masaru、Tsuji Chiharu、Cheranov Stanislav M.、Kadonosono Kazuaki
    • Journal Title

      Tissue and Cell

      Volume: 64 Pages: 101328-101328

    • DOI

      10.1016/j.tice.2019.101328

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Filtering Blebs after Baerveldt Glaucoma Implantation Using Magnetic Resonance Imaging: A Prospective Investigation.2020

    • Author(s)
      wasaki K, Kanamoto M, Arimura S, Takamura Y, Kimura H, Inatani M
    • Journal Title

      Ophthalmology Glaucoma

      Volume: 3 Issue: 3 Pages: 221-224

    • DOI

      10.1016/j.ogla.2020.01.003

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Neovascular glaucoma2023

    • Author(s)
      Inatani M
    • Organizer
      The 10th World Glaucoma Congress
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Aqueous column changes in the episcleral veins after the instillation of ripasudil versus latanoprost: A randomized, double-blind, crossover clinical trial.2022

    • Author(s)
      Inatani M, Suzuki M, Suzuki Y, Komori R, Orii Y, Aimura S.
    • Organizer
      The 38th APAO Congress
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Combined iStent trabecular micro-bypass and cataract surgery in Japanese glaucomatous eyes.2021

    • Author(s)
      Inatani M
    • Organizer
      5th Asia-Pacific Glaucoma Congress
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Treatment strategies for neovascular glaucoma in the new era.2021

    • Author(s)
      Inatani M
    • Organizer
      The Chinese University of Hong Kong Virtual Grandround
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] How to create the excellent filtering bleb in Baerveldt glaucoma implantation. シンポジウム18 Hot topics: Glaucoma treament2020

    • Author(s)
      稲谷 大
    • Organizer
      第74回日本臨床眼科学会
    • Related Report
      2020 Annual Research Report
  • [Remarks] 福井大学眼科学教室

    • URL

      http://ganka-fukuimed.jp/index.html

    • Related Report
      2023 Annual Research Report
  • [Remarks] 福井大学医学部眼科学教室

    • URL

      http://ganka-fukuimed.jp/index.html

    • Related Report
      2022 Annual Research Report
  • [Remarks] 福井大学眼科学教室

    • URL

      http://ganka-fukuimed.jp

    • Related Report
      2021 Annual Research Report
  • [Remarks] 福井大学眼科学教室

    • URL

      http://www.med.u-fukui.ac.jp/GANKA/

    • Related Report
      2020 Annual Research Report

URL: 

Published: 2020-04-28   Modified: 2025-01-30  

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