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Myopia development and scleral ER stress

Research Project

Project/Area Number 20K09834
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 56060:Ophthalmology-related
Research InstitutionKeio University

Principal Investigator

Ikeda Shin-ichi  慶應義塾大学, 医学部(信濃町), 特任助教 (50534898)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords近視 / 強膜 / 小胞体ストレス / UPR / PERK / ATF6
Outline of Research at the Start

近年アジア圏を中心に近視保有者が急増しており、メディアで報道されるなど注目されている。近視は眼球の前後の長さである眼軸長が伸長することで生じるが眼軸が長いほど視覚障害の割合が増加することからその進行を抑制することが重要であるが効果的な抑制法・治療法が現存しない。本研究は近視眼では強膜(白目部分)において小胞体ストレスが生じていること、その抑制により近視進行がほぼ抑制されることを見出した。これは強膜小胞体ストレスへの介入により効果的な近視抑制・治療法を生み出せる可能性を示唆している。本研究は強膜小胞体ストレスと近視進行の関係を明らかにしその抑制法を生み出そうとするものである。

Outline of Final Research Achievements

Here, we show that endoplasmic reticulum (ER) stress in sclera is an essential regulator of axial elongation in myopia development through activation of both PERK and ATF6 axis followed by scleral collagen remodelling. Mice with lens-induced myopia (LIM) showed ER stress in sclera. Pharmacological interventions for ER stress could induce or inhibit myopia progression. LIM activated all IRE1, PERK and ATF6 axis, and pharmacological inhibition of both PERK and ATF6 suppressed myopia progression, which was confirmed by knocking down above two genes via CRISPR/Cas9 system. LIM changed the expression of scleral collagen genes responsible for ER stress. Furthermore, collagen fibre thinning and expression of dysregulated collagens in LIM were ameliorated by 4-PBA administration. We demonstrate that scleral ER stress and PERK/ATF6 pathway controls axial elongation during the myopia development in vivo model and 4-PBA eye drop is promising drug for myopia suppression/treatment.

Academic Significance and Societal Importance of the Research Achievements

近視はアジア圏を中心に急増している。眼球が前後方向に伸長することが近視の本体であるがその伸長により後眼部に物理的な負荷が加わることで視覚障害につながることが報告されてから眼軸伸長への介入の必要性が認識されるようになったが、効果的な方法は現存しない。本研究により見出された強膜小胞体ストレスへの介入は極めて効率的に眼軸伸長、近視進行を抑制したことから本研究を元とした薬剤開発は急増する近視に歯止めをかける可能性があり、社会的に非常に意義深い研究成果が得られた。

Report

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

    (19 results)

All 2023 2022 2021 2020

All Journal Article (9 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 9 results,  Open Access: 8 results) Presentation (7 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results) Patent(Industrial Property Rights) (3 results)

  • [Journal Article] Myopia Is Suppressed by Digested Lactoferrin or Holo-Lactoferrin Administration2023

    • Author(s)
      Liang Yifan、Ikeda Shin-ichi、Chen Junhan、Zhang Yan、Negishi Kazuno、Tsubota Kazuo、Kurihara Toshihide
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 24 Issue: 6 Pages: 5815-5815

    • DOI

      10.3390/ijms24065815

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Scleral PERK and ATF6 as targets of myopic axial elongation of mouse eyes.2022

    • Author(s)
      2.Ikeda SI, Kurihara T, Jiang X, Miwa Y, Lee D, Serizawa N, Jeong H, Mori K, Katada Y, Kunimi H, Ozawa N, Shoda C, Ibuki M, Negishi K, Torii H, Tsubota K.
    • Journal Title

      Nature Communications

      Volume: Oct 10;13(1) Issue: 1 Pages: 5859-5859

    • DOI

      10.1038/s41467-022-33605-1

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Lipidomic analysis revealed n‐3 polyunsaturated fatty acids suppressed choroidal thinning and myopia progression in mice2022

    • Author(s)
      Mori Kiwako、Kuroha Sayoko、Hou Jing、Jeong Heonuk、Ogawa Mamoru、Ikeda Shin‐ichi、Kang Jing X.、Negishi Kazuno、Torii Hidemasa、Arita Makoto、Kurihara Toshihide、Tsubota Kazuo
    • Journal Title

      The FASEB Journal

      Volume: 36 Issue: 6 Pages: 22312-22312

    • DOI

      10.1096/fj.202101947r

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Violet light suppresses lens-induced myopia via neuropsin (OPN5) in mice2021

    • Author(s)
      Xiaoyan Jiang, Machelle T Pardue, Kiwako Mori, Shin-Ichi Ikeda, Hidemasa Torii, Shane D'Souza, Richard A Lang, Toshihide Kurihara, Kazuo Tsubota
    • Journal Title

      Proc Natl Acad Sci

      Volume: 118(22) Issue: 22

    • DOI

      10.1073/pnas.2018840118

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Short-term physical inactivity induces diacylglycerol accumulation and insulin resistance in muscle via lipin1 activation2021

    • Author(s)
      Kakehi Saori、Tamura Yoshifumi、Ikeda Shin-ichi、Kaga Naoko、Taka Hikari、Ueno Noriko、Shiuchi Tetsuya、Kubota Atsushi、Sakuraba Keishoku、Kawamori Ryuzo、Watada Hirotaka
    • Journal Title

      American Journal of Physiology-Endocrinology and Metabolism

      Volume: 321 Issue: 6 Pages: E766-E781

    • DOI

      10.1152/ajpendo.00254.2020

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Oral Bovine Milk Lactoferrin Administration Suppressed Myopia Development through Matrix Metalloproteinase 2 in a Mouse Model2020

    • Author(s)
      Ikeda Shin-Ichi、Kurihara Toshihide、Toda Masataro、Jiang Xiaoyan、Torii Hidemasa、Tsubota Kazuo
    • Journal Title

      Nutrients

      Volume: 12 Issue: 12 Pages: 3744-3744

    • DOI

      10.3390/nu12123744

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] A Murine Model of Ischemic Retinal Injury Induced by Transient Bilateral Common Carotid Artery Occlusion2020

    • Author(s)
      Lee Deokho、Miwa Yukihiro、Jeong Heonuk、Ikeda Shin-ichi、Katada Yusaku、Tsubota Kazuo、Kurihara Toshihide
    • Journal Title

      Journal of Visualized Experiments

      Volume: Nov 12 Issue: 165 Pages: 1-19

    • DOI

      10.3791/61865

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Estimation of the Minimum Effective Dose of Dietary Supplement Crocetin for Prevention of Myopia Progression in Mice2020

    • Author(s)
      Mori Kiwako、Kurihara Toshihide、Jiang Xiaoyan、Ikeda Shin-ichi、Yotsukura Erisa、Torii Hidemasa、Tsubota Kazuo
    • Journal Title

      Nutrients

      Volume: 12 Issue: 1 Pages: 180-180

    • DOI

      10.3390/nu12010180

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Endurance runners with intramyocellular lipid accumulation and high insulin sensitivity have enhanced expression of genes related to lipid metabolism in muscle2020

    • Author(s)
      Kakehi Saori、Tamura Yoshifumi、Takeno Kageumi、Ikeda Shin-ichi、Ogura Yuji、Saga Norio、Miyatsuka Takeshi、Naito Hisashi、Kawamori Ryuzo、Watada Hirotaka
    • Journal Title

      Journal of Clinical Medicine

      Volume: 9 Issue: 12 Pages: 1

    • DOI

      10.3390/jcm9123951

    • URL

      https://localhost/en/publications/18ea17d9-c471-4dee-bae3-5a6e8c72c9aa

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 近視進行に伴う強膜コラーゲン線維の変性2022

    • Author(s)
      池田真一、栗原俊英、根岸一乃、坪田一男
    • Organizer
      第4回日本近視学会総会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 強膜小胞体ストレスへの介入による近視進行制御の可能性2022

    • Author(s)
      池田真一
    • Organizer
      第7回近視研究会学術集会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Myopia can be controlled by intervention in scleral endoplasmic reticulum stress2022

    • Author(s)
      Shin-ichi Ikeda, Toshihide Kurihara, Xiaoyan Jiang, Kiwako Mori, Hidemasa Torii, Kazuo Tsubota
    • Organizer
      International Myopia Conference
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 2.Role of VEGF secreted from Retinal Pigment Epithelium in Choriocapillaris and Axial Length Maintenance2022

    • Author(s)
      Yang Zhang Y, Heonuk Jeong, Kiwako Mori, Shin-ichi Ikeda, Chiho Shoda, Yukihiro Miwa, Ayaka Nakai, Junhan Chen, Ziyan Ma, Yoshiaki Kubota, Kazuno Negishi, Toshihide Kurihara, Kazuo Tsubota
    • Organizer
      International Myopia Conference
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Ginkgo biloba Extracts Altered Choroidal Blood Perfusion in Mice2022

    • Author(s)
      Jing Hou, Kiwako Mori, Shin-ichi Ikeda, Heonuk Jeong, Hidemasa Torii, Kazuno Negishi, Toshihide Kurihara, Kazuo Tsubota
    • Organizer
      International Myopia Conference
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] UPR(Unfolded Protein Response)による病的眼軸伸張制御機構2021

    • Author(s)
      池田真一、栗原俊英、姜効炎、森紀和子、堅田侑作、國見洋光、三輪幸裕、小沢信博、伊吹麻里、正田千穂、鳥居秀成、坪田一男
    • Organizer
      第125回日本眼科学会総会
    • Related Report
      2021 Research-status Report
  • [Presentation] 強膜小胞体ストレスによる近視進行制御2021

    • Author(s)
      池田 真一, 栗原 俊英, 姜 効炎, 森 紀和子, ジョン ホヌク, リー ドコ, 堅田 侑作, 國見 洋光, 三輪 幸裕, 小沢 信博, 伊吹 麻里, 正田 千穂, 鳥居 秀成, 坪田 一男
    • Organizer
      第3回日本近視学会総会
    • Related Report
      2021 Research-status Report
  • [Patent(Industrial Property Rights)] 近視進行抑制剤および抑制法としてのM2マクロファージ誘導剤2022

    • Inventor(s)
      1.坪田一男、栗原俊英、池田真一、コサイ
    • Industrial Property Rights Holder
      1.坪田一男、栗原俊英、池田真一、コサイ
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2022-072596
    • Filing Date
      2022
    • Related Report
      2022 Annual Research Report
  • [Patent(Industrial Property Rights)] 強膜菲薄化治療用点眼剤及び強膜菲薄化治療剤の スクリーニング方法2022

    • Inventor(s)
      2.坪田一男、栗原俊英、池田真一、森紀和子、姜效炎
    • Industrial Property Rights Holder
      2.坪田一男、栗原俊英、池田真一、森紀和子、姜效炎
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2022-205490
    • Filing Date
      2022
    • Related Report
      2022 Annual Research Report
  • [Patent(Industrial Property Rights)] 薬剤点眼による近視誘導モデル2022

    • Inventor(s)
      池田真一、栗原俊英、坪田一男
    • Industrial Property Rights Holder
      池田真一、栗原俊英、坪田一男
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2022-009338
    • Filing Date
      2022
    • Related Report
      2021 Research-status Report

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Published: 2020-04-28   Modified: 2024-01-30  

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