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Proposal of a novel therapy for bullous keratopathy based on human-derived multiomics analysis

Research Project

Project/Area Number 20K21663
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 56:Surgery related to the biological and sensory functions and related fields
Research InstitutionTokyo Dental College

Principal Investigator

Takefumi Yamaguchi  東京歯科大学, 歯学部, 教授 (20383771)

Co-Investigator(Kenkyū-buntansha) 比嘉 一成  東京歯科大学, 歯学部, 講師 (60398782)
杉本 昌弘  東京医科大学, 医学部, 兼任教授 (30458963)
Project Period (FY) 2020-07-30 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2022: ¥260,000 (Direct Cost: ¥200,000、Indirect Cost: ¥60,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2020: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords前房水 / 角膜内皮細胞 / 細胞老化 / 難治性水疱性角膜症 / ニコチナミドモノヌクレオチド / 前房関連角膜内皮症 / 水疱性角膜症 / メタボローム解析 / 角膜移植
Outline of Research at the Start

これまで「水疱性角膜症は角膜内皮細胞が減少する疾患」と定義されてきた。だが角膜内皮細胞が減少する理由は不明で、病態を反映する治療概念がなかった。本研究では「水疱性角膜症は前房水の病的環境変化に対する角膜内皮細胞変性疾患である」という概念を提唱する。角膜内皮細胞/ 前房水のMetabolome解析、NAD/NADH代謝異常、細胞老化を評価し、NMN/Sirolimusの治療的効果を探索的に検証する。

Outline of Final Research Achievements

In our previous study, we identified several biological pathways from multiomic analyses using refractory bullous keratopathy, which we named as "aqueous humor associated endotheliopathy". Based on these results, we hypothesized that NMN, a regulator of mitochondria and intracellular energy production, can alleviate corneal endothelial cell damage due to pathological aqueous humor. First, in DBA2J, a animal model of aqueous humor associated endotheliopathy, we repeated experiments of NMN-fed DBA2J for 1 month, and found that NMN decreased corneal endothelial damage. Second, we measured NAD/NADH levels in human aqueous humor and showed that the NAD/NADH levels were decreased in eyes with aqueous humor associated endotheliopathy. Third, in ex-vivo experiments using the aqueous humor from normal eyes and eyes with aqueous humor associated endotheliopathy, endothelial cell damage was increased in the cells that were cultured in aqueous humor from aqueous humor associated endotheliopathy.

Academic Significance and Societal Importance of the Research Achievements

角膜内皮移植の発展によって水疱性角膜症の予後は劇的に改善したが、一部の水疱性角膜症では術後に角膜内皮細胞が減少し、移植片が早期に機能不全に陥るため何度も角膜移植を繰り返す必要がある。これは単に「角膜内皮細胞が減少し角膜浮腫をきたす」水疱性角膜症ではなく、「虹彩損傷・房水血管柵破綻を背景とする前房環境の病的変化による角膜内皮細胞の変性疾患」である。角膜提供が少ない我が国において多くの角膜を消費する本疾患概念の確立と病態解明は喫緊の課題である。本研究から前房環境の代謝異常の視点から「前房関連角膜内皮症」という疾患概念と、病態解析、治療法の開発につながる知見が得られ、今後の研究基盤が確立できた。

Report

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

    (12 results)

All 2024 2023 2022 2021 2020

All Journal Article (10 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 10 results,  Open Access: 5 results) Presentation (1 results) (of which Int'l Joint Research: 1 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Incidence and Clinical Features of Immunologic Rejection After Deep Anterior Lamellar Keratoplasty2024

    • Author(s)
      Kasamatsu H, Yamaguchi T, Yagi-Yaguchi Y, Nishisako S, Tomida D, Akiyama M, Murata T, Shimazaki J.
    • Journal Title

      Cornea

      Volume: Online ahead of print Issue: 8 Pages: 783-796

    • DOI

      10.1097/ico.0000000000003444

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Systematic Review of the Diagnostic Criteria and Severity Classification for Fuchs Endothelial Corneal Dystrophy2023

    • Author(s)
      Oie Yoshinori、Yamaguchi Takefumi、Nishida Nozomi、Okumura Naoki、Maeno Sayo、Kawasaki Ryo、Jhanji Vishal、Shimazaki Jun、Nishida Kohji
    • Journal Title

      Cornea

      Volume: 42 Issue: 12 Pages: 1590-1600

    • DOI

      10.1097/ico.0000000000003343

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Comprehensive Proteomic Profiling of Vitreous Humor in Ocular Sarcoidosis Compared with Other Vitreoretinal Diseases2022

    • Author(s)
      Komatsu Hiroyuki、Usui Yoshihiko、Tsubota Kinya、Fujii Risa、Yamaguchi Takefumi、Maruyama Kazuichi、Wakita Ryo、Asakage Masaki、Shimizu Hiroyuki、Yamakawa Naoyuki、Nezu Naoya、Ueda Koji、Goto Hiroshi
    • Journal Title

      Journal of Clinical Medicine

      Volume: 11 Issue: 13 Pages: 3606-3606

    • DOI

      10.3390/jcm11133606

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Evaluation of corneal nerves and dendritic cells by in vivo confocal microscopy after Descemet's membrane keratoplasty for bullous keratopathy2022

    • Author(s)
      Shimizu T, Hayashi T, Ishida A, Kobayashi A, Yamaguchi T, Mizuki N, Yuda K, Yamagami S.
    • Journal Title

      Sci Rep

      Volume: 12 Issue: 1 Pages: 6936-6936

    • DOI

      10.1038/s41598-022-10939-w

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Donor-Related Risk Factors for Graft Decompensation Following Descemet's Stripping Automated Endothelial Keratoplasty2022

    • Author(s)
      Nishisako S, Yamaguchi T, Hirayama M, Higa K, Aoki D, Sasaki C, Noma H, Shimazaki J.
    • Journal Title

      Front Med

      Volume: 4 Pages: 810536-810536

    • DOI

      10.3389/fmed.2022.810536

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Aqueous humour cytokine profiles after Descemet's membrane endothelial keratoplasty.2021

    • Author(s)
      Hayashi T, Takahashi H, Inoda S, Shimizu T, Kobayashi A, Kawashima H, Yamaguchi T, Yamagami S.
    • Journal Title

      Scientific report

      Volume: 11 Issue: 1 Pages: 17064-17064

    • DOI

      10.1038/s41598-021-96566-3

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Aqueous Cytokine Levels Are Associated With Progression of Peripheral Anterior Synechiae After Descemet Stripping Automated Endothelial Keratoplasty2021

    • Author(s)
      Yuki Kusano, Takefumi Yamaguchi, Sota Nishisako, Takehiro Matsumura, Masaki Fukui, Kazunari Higa, Toshihiro Inoue, Jun Shimazaki
    • Journal Title

      Translational Visual Science Technology

      Volume: 10 Issue: 11 Pages: 12-12

    • DOI

      10.1167/tvst.10.11.12

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Elevated Cytokine Levels in Aqueous Humor Are Associated with Peripheral Anterior Synechiae after Penetrating Keratoplasty2021

    • Author(s)
      Yuki Kusano, Takefumi Yamaguchi, Sota Nishisako, Takehiro Matsumura, Masaki Fukui, Kazunari Higa, Toshihiro Inoue, Jun Shimazaki
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 22 Issue: 22 Pages: 12268-12268

    • DOI

      10.3390/ijms222212268

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Pathological processes in aqueous humor due to iris atrophy predispose to early corneal graft failure in humans and mice2020

    • Author(s)
      Yamaguchi Takefumi、Higa Kazunari、Yagi-Yaguchi Yukari、Ueda Koji、Noma Hisashi、Shibata Shinsuke、Nagai Toshihiro、Tomida Daisuke、Yasu-Mimura Ririko、Ibrahim Osama、Matoba Ryo、Tsubota Kazuo、Hamrah Pedram、Yamada Jun、Kanekura Kohsuke、Shimazaki Jun
    • Journal Title

      Science Advances

      Volume: 6 Issue: 20 Pages: 5195-5195

    • DOI

      10.1126/sciadv.aaz5195

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Correlation between tear and aqueous humor cytokine levels in bullous keratopathy.2020

    • Author(s)
      3.Tomida D, Yagi-Yaguchi Y, Higa K, Satake Y, Shimazaki J, Yamaguchi T*
    • Journal Title

      Ocular Surface

      Volume: 20 Issue: 4 Pages: 801-807

    • DOI

      10.1016/j.jtos.2020.06.010

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Nicotinamide mononucleotide prevents iris atrophy-associated corneal  endothelial cell loss2023

    • Author(s)
      Takefumi Yamaguchi, Rintaro Ogino, Yukari YagiYaguchi, Kazunari Higa, Jun Shimazaki
    • Organizer
      ARVO2023
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Patent(Industrial Property Rights)] ニコチンアミドモノヌクレオチド含有角膜保存液、ニコチナミドモノヌクレオチド点眼および内服による角膜内皮細胞の保護、角膜移植片の生存延長および角膜内皮細胞減少眼での水疱性角膜症の発症予防2023

    • Inventor(s)
      山口剛史
    • Industrial Property Rights Holder
      山口剛史
    • Industrial Property Rights Type
      特許
    • Filing Date
      2023
    • Related Report
      2022 Research-status Report

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Published: 2020-08-03   Modified: 2025-01-30  

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