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Development of novel treatment for retinitis pigmentosa using molecular target to calpain

Research Project

Project/Area Number 16K11313
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Ophthalmology
Research InstitutionHirosaki University

Principal Investigator

Nakazawa Mitsuru  弘前大学, 医学研究科, 教授 (80180272)

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: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords網膜色素変性 / カルパイン / 視細胞死 / ミトコンドリアカルパイン / ペプチド治療 / RCSラット / ロドプシン遺伝子 / ロドプシン / 遺伝性網膜変性疾患 / 眼薬理学 / 光干渉断層法 / 視細胞保護 / トランスレーショナルリサーチ / 薬理学
Outline of Final Research Achievements

We previously developed a peptide that could specifically inhibit the activation of rat mitochondrial calpain-1. This research project has aimed to confirm the effect of photoreceptor protection by the calpain inhibitory peptide on retinal degeneration model rats. We first observed the natural course of photoreceptor degeneration in RCS rats by optical coherence tomography. And then, we created a slowly releasing device of the calpain inhibitory peptide. We transplanted the device into the subconjunctival space of the RCS rats and confirmed the safety and stability of using the device transplanted into the subconjunctival space.

Academic Significance and Societal Importance of the Research Achievements

いまだ有効な治療法のない網膜色素変性についてその本質である視細胞死を直接の標的とする治療法の開発を目的とした研究である。カルパイン阻害ペプチドを投与することで視細胞死の進行が少しでも遅延させることができればそれだけ患者の視機能保持期間の延長につながる。本研究はカルパイン阻害ペプチドの細胞死阻害効果を臨床的に応用する道筋を見いだすことを目標としており、ペプチドの除放デバイスの安全性が確認できたことはさらに次の段階へと進む基盤となったことを示している。

Report

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

    (32 results)

All 2019 2018 2017 2016 Other

All Journal Article (15 results) (of which Peer Reviewed: 15 results,  Open Access: 13 results,  Acknowledgement Compliant: 1 results) Presentation (12 results) Book (3 results) Remarks (2 results)

  • [Journal Article] Transient macular damage during smatphone usage2018

    • Author(s)
      Yamauchi K, Nakazawa M, Kato C, Takahashi D
    • Journal Title

      Current Trends in Ophthalmology

      Volume: 1 Pages: 71-74

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Intraocular lens intracapsular fixation with unilateral loop suture for 180 degree Zinn’s zonule dialysis2018

    • Author(s)
      Suzuki Y. Adachi K, Jinnai Yoshihiro, Suzuki K, Nakazawa M
    • Journal Title

      Clinical Ophthalmology

      Volume: 12 Pages: 2087-2093

    • DOI

      10.2147/opth.s176823

    • NAID

      120006583345

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The spectral domain optical coherence tomography findings associated with morphological and electrophysiological changes in a rat model of retinal degeneration, rhodopsin S334twr-4 rats2018

    • Author(s)
      Yamauchi K, Tanabu R, Monai N, Gonome T, Xie Y, Takahashi S, Ishiguro S, Nakazawa M
    • Journal Title

      BioMed Research International

      Volume: 2018 Pages: 1-10

    • DOI

      10.1155/2018/5174986

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The findings of optical coherence tomography of retinal degeneration in relation to the morphological and electroretinographic features in RPE65-/- mice2018

    • Author(s)
      Tanabu R, Sato K, Monai N, Yamauchi K, Gonome T, Xie Y, Takahashi S, Ishiguro S, Nakazawa M
    • Journal Title

      PLOS ONE

      Volume: 14 Issue: 1 Pages: e0210439-e0210439

    • DOI

      10.1371/journal.pone.0210439

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Intraoperative adjunctive mitomycin C and cryotherapy for recurrent conjunctival papillary sebaceous carcinoma2018

    • Author(s)
      Monai N, Tanabu R, Gonome T, Yokoi K, Urushidate S, Morohashi S, Hirai H, Kurose A, Nakazawa M
    • Journal Title

      Case Reports in Ophthalmology

      Volume: 9 Issue: 1 Pages: 221-226

    • DOI

      10.1159/000487704

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Characterization of photoreceptor degeneration in the rhodopsin P23H transgenic rat line 2 using optical coherence yomography2018

    • Author(s)
      Monai N, Yamauchi K, Tanabu R, Gonome, Ishiguro S, Nakazawa M
    • Journal Title

      PLOS ONE

      Volume: 13 Issue: 3 Pages: e0193778-e0193778

    • DOI

      10.1371/journal.pone.0193778

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Macular edema associated with intraocular ointment after cataract surgery2018

    • Author(s)
      Kudo A, Kudo T, Takahashi D, Metoki T, Suzuki Y, Nakazawa M
    • Journal Title

      American Journal of Ophthalmology Case Reports

      Volume: 10 Pages: 152-156

    • DOI

      10.1016/j.ajoc.2018.02.027

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Heterozygous deletion of the OPA1 gene in patients with dominant optic atrophy2017

    • Author(s)
      Hayashi T, Sasano H, Katagiri S, Tsunoda K, Kameya S, Nakazawa M, Iwata T, Tsuneoka H
    • Journal Title

      Japanese Journal of Ophthalmology

      Volume: 61 Pages: 395-401

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Macular hole caused by retained subfoveal perfluorocarbon that subsequently closed after spontaneous resolution: A case report2017

    • Author(s)
      Tanabu R, Suzuki Y, Suzuki K, Takahashi S, Nakazawa M, Mizutani H
    • Journal Title

      Ophthalmology and Therapy

      Volume: 6 Pages: 381-384

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Oxidative stress in the vitreous fluid with rhegmatogenous retinal detachment2017

    • Author(s)
      Suzuki Y, Adachi K, Takahashi S, Maeno A, Nakazawa M
    • Journal Title

      Journal of Clinical and Experimental of Ophthalmology

      Volume: 6 Issue: 05 Pages: 682-686

    • DOI

      10.4172/2155-9570.1000682

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Optical coherence tomography of retinal degeneration in Royal College of Surgeons rats and its correlation with morphology and electroretinography2016

    • Author(s)
      Adachi K, Takahashi S, Yamauchi K, Mounai N, Tanabu R, Nakazawa M
    • Journal Title

      PLoS One

      Volume: 11 Issue: 9 Pages: e0162835-e0162835

    • DOI

      10.1371/journal.pone.0162835

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Profiles of inflammatory cytokines in the vitreous fluid from patients with rhegmatogenous retinal detachment and their correlations with clinical features.2016

    • Author(s)
      Takahashi S, Adachi K, Suzuki Y, Maeno A, Nakazawa M.
    • Journal Title

      BioMed Research Interntional

      Volume: 2016 Pages: 4256183-4256183

    • DOI

      10.1155/2016/4256183

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Acute posterior multifocal placoid pigment epitheliopathy and granulomatous uveitis following influenza vaccination.2016

    • Author(s)
      Gonome T, Suzuki Y, Metoki T, Takahashi S, Nakazawa M
    • Journal Title

      Am J Ophthalmol Case Reports

      Volume: 6 Pages: 60-63

    • DOI

      10.1016/j.ajoc.2016.08.008

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Level of vascular endothelial growth factor in the vitreous fluid of proliferative diabetic retinopathy patients and postoperative complications of vitrectomy2016

    • Author(s)
      Suzuki Y, Suzuki K, Kudo T, Metoki T, Nakazawa M
    • Journal Title

      Ophthalmologica

      Volume: 236 Pages: 133-138

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] 両眼脈絡膜骨腫に脈絡膜新生血管を合併した1例2016

    • Author(s)
      髙橋 静、鈴木幸彦、陳内嘉浩、吹田淑子、目時友美、中澤 満、佐藤元哉
    • Journal Title

      臨床眼科

      Volume: 70 Pages: 695-702

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Presentation] 各種網膜変性モデルでのOCT所見、網膜電図および視細胞形態の関連性2019

    • Author(s)
      中澤 満、安達功武、高橋 静、毛内奈津姫、山内宏大、田名部玲子、江目孝幸、謝玉テイ(女偏に亭)、石黒誠一、佐藤孝太
    • Organizer
      第123回日本眼科学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 色素性静脈周囲網脈絡膜萎縮症4症例の臨床像2019

    • Author(s)
      高橋 静、工藤朝香、中澤 満
    • Organizer
      第123回日本眼科学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Optical coherence tomographic analysis of RDH5 knockout mice retina2019

    • Author(s)
      謝 玉テイ(女偏に亭)、中澤 満、山内宏大、毛内奈津姫、田名部玲子、江目孝幸
    • Organizer
      第123回日本眼科学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] GLASTノックアウトマウスの網膜各層の経時変化2019

    • Author(s)
      江目孝幸、山内宏大、田名部玲子、毛内奈津姫、謝 玉テイ(女偏に亭)、中澤 満
    • Organizer
      第123回日本眼科学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 内境界膜剥離操作が神経節細胞層に及ぼす影響2018

    • Author(s)
      工藤孝志、鈴木幸彦、目時友美、安達功武、毛内奈津姫、中澤 満
    • Organizer
      第122回日本眼科学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] RPE65ノックアウトマウス視細胞変性過程のOCTを用いた定性的および定量的解析2018

    • Author(s)
      田名部玲子、毛内奈津姫、山内宏大、江目孝幸、佐藤孝太、中澤 満
    • Organizer
      第122回日本眼科学会総会
    • Related Report
      2017 Research-status Report
  • [Presentation] 術前網膜光凝固の有無による糖尿病網膜症の硝子体サイトカインと術後炎症2018

    • Author(s)
      鈴木幸彦、安達功武、工藤孝志、鈴木香、目時友美、中澤 満
    • Organizer
      第122回日本眼科学会総会
    • Related Report
      2017 Research-status Report
  • [Presentation] ロドプシンS334ter変異ラットの網膜変性過程のOCT所見による解析2017

    • Author(s)
      山内宏大、田名部玲子、毛内奈津姫、髙橋 静、安達功武、中澤 満
    • Organizer
      第121回日本眼科学会総会
    • Place of Presentation
      東京国際フォーラム(東京都)
    • Year and Date
      2017-04-06
    • Related Report
      2016 Research-status Report
  • [Presentation] ロドプシンP23H変異ラットの網膜変性過程のOCT所見による解析2017

    • Author(s)
      毛内奈津姫、田名部玲子、山内宏大、髙橋 静、安達功武、中澤 満
    • Organizer
      第121回日本眼科学会総会
    • Place of Presentation
      東京国際フォーラム(東京都)
    • Year and Date
      2017-04-06
    • Related Report
      2016 Research-status Report
  • [Presentation] 増殖糖尿病網膜症に対する汎網膜光凝固術既往の有無による硝子体サイトカイン濃度の差2017

    • Author(s)
      鈴木幸彦、安達功武、工藤孝志、鈴木 香、目時友美、中澤 満
    • Organizer
      第121回日本眼科学会総会
    • Related Report
      2017 Research-status Report
  • [Presentation] RCSラット網膜変性自然経過のOCT所見2016

    • Author(s)
      安達功武、髙橋 静、中澤 満
    • Organizer
      第20回眼科分子生物研究会
    • Place of Presentation
      登別温泉第1滝本館(北海道、登別市)
    • Year and Date
      2016-06-25
    • Related Report
      2016 Research-status Report
  • [Presentation] RCSラットにおける自然経過でのOCT変化2016

    • Author(s)
      安達功武、高橋静、中澤 満
    • Organizer
      第120回日本眼科学会総会
    • Place of Presentation
      仙台国際ホール(宮城県、仙台市)
    • Year and Date
      2016-04-07
    • Related Report
      2016 Research-status Report
  • [Book] 標準眼科学 第14版2019

    • Author(s)
      中澤 満、村上 晶、園田康平(編)
    • Total Pages
      407
    • Publisher
      医学書院
    • ISBN
      9784260036573
    • Related Report
      2018 Annual Research Report
  • [Book] 標準眼科学 第13版 (硝子体、網膜)2016

    • Author(s)
      中澤 満
    • Publisher
      医学書院
    • Related Report
      2016 Research-status Report
  • [Book] 網膜変性疾患診療のすべて.眼科臨床エキスパート(細胞内カルシウム濃度、小口病)2016

    • Author(s)
      中澤 満
    • Publisher
      医学書院
    • Related Report
      2016 Research-status Report
  • [Remarks] 網膜色素変性モデル動物に対するカルパイン阻害ペプチド点眼による治療効果に関する研究成果

    • Related Report
      2018 Annual Research Report
  • [Remarks] 弘前大学医学部眼科学教室、診療案内

    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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