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2020 Fiscal Year Annual Research Report

Development of a new therapeutic approach for retinitis pigmentosa based on the iPS cell research

Research Project

Project/Area Number 18K09422
Research InstitutionKeio University

Principal Investigator

小澤 洋子  慶應義塾大学, 医学部(信濃町), 特任准教授 (90265885)

Project Period (FY) 2018-04-01 – 2021-03-31
Keywords網膜 / 神経保護 / iPS細胞
Outline of Annual Research Achievements

国内の失明原因の第3位であり、人口の4000-8000人に1人という高率に生じる遺伝性神経変性疾患である網膜色素変性には、現時点で有効な治療法が世界的に無い。従来、網膜は検体採取が困難であることから、病態研究は困難であったことが一因である。しかし、申請者は遺伝子変異を持つ患者体細胞からiPS細胞を樹立し、分化誘導により網膜細胞を培養し解析する疾患iPS研究を行い、網膜色素変性に対する小胞体ストレスを標的とした神経保護治療の可能性を提案した(Yoshida, Ozawa, Okano et al. Mol. Brain 2014)。疾患iPS研究は、in vitroの実験であり、次に目標とされるのは、in vivoにおける効果の解析である。そこで、本研究では、次の段階として将来の新規治療法の開発、すなわち臨床応用につなげるために生体内での失明予防効果を解析した。そして、本研究では、網膜色素変性モデルマウスにおける神経保護治療の効果の解析を行った。ロドプシン変異遺伝子であるP23Hのノックインマウス(Sakami,Palczewski et al.Hum Mol Genet.2014]を用いて、小胞体ストレス抑制効果を持つ薬剤による治療介入を行い、その機能的および組織学的予後の解析を行った。申請者のこれまでのiPSテクノロジーを用いた研究を発展させ、将来のヒト臨床試験、新規神経保護治療法の開発につなげる解析をした。

  • Research Products

    (23 results)

All 2021 2020

All Journal Article (11 results) (of which Peer Reviewed: 11 results,  Open Access: 11 results) Presentation (12 results) (of which Int'l Joint Research: 5 results,  Invited: 1 results)

  • [Journal Article] Taurine rescues mitochondria-related metabolic impairments in the patient-derived induced pluripotent stem cells and epithelial-mesenchymal transition in the retinal pigment epithelium2021

    • Author(s)
      Homma Kohei、Toda Eriko、Osada Hideto、Nagai Norihiro、Era Takumi、Tsubota Kazuo、Okano Hideyuki、Ozawa Yoko
    • Journal Title

      Redox Biology

      Volume: 41 Pages: 101921~101921

    • DOI

      10.1016/j.redox.2021.101921

    • Peer Reviewed / Open Access
  • [Journal Article] Myopia, corneal endothelial cell density and morphology in a Japanese population-based cross-sectional study: the JPHC-NEXT Eye Study2021

    • Author(s)
      Aketa Naohiko、Uchino Miki、Kawashima Motoko、Uchino Yuichi、Yuki Kenya、Ozawa Yoko、Sasaki Mariko、Yamagishi Kazumasa、Sawada Norie、Tsugane Shoichiro、Tsubota Kazuo、Iso Hiroyasu
    • Journal Title

      Scientific Reports

      Volume: 11 Pages: -

    • DOI

      10.1038/s41598-021-85617-4

    • Peer Reviewed / Open Access
  • [Journal Article] n-3 Fatty Acid and Its Metabolite 18-HEPE Ameliorate Retinal Neuronal Cell Dysfunction by Enhancing Muller BDNF in Diabetic Retinopathy2020

    • Author(s)
      Suzumura Ayana、Kaneko Hiroki、Funahashi Yasuhito、Takayama Kei、Nagaya Masatoshi、Ito Seina、Okuno Toshiaki、Hirakata Toshiaki、Nonobe Norie、Kataoka Keiko、Shimizu Hideyuki、Namba Rina、Yamada Kazuhisa、Ye Fuxiang、Ozawa Yoko、Yokomizo Takehiko、Terasaki Hiroko
    • Journal Title

      Diabetes

      Volume: 69 Pages: 724~735

    • DOI

      10.2337/db19-0550

    • Peer Reviewed / Open Access
  • [Journal Article] Macular Pigment Optical Density and Photoreceptor Outer Segment Length as Predisease Biomarkers for Age-Related Macular Degeneration2020

    • Author(s)
      Nagai Norihiro、Minami Sakiko、Suzuki Misa、Shinoda Hajime、Kurihara Toshihide、Sonobe Hideki、Watanabe Kazuhiro、Uchida Atsuro、Ban Norimitsu、Tsubota Kazuo、Ozawa Yoko
    • Journal Title

      Journal of Clinical Medicine

      Volume: 9 Pages: 1347~1347

    • DOI

      10.3390/jcm9051347

    • Peer Reviewed / Open Access
  • [Journal Article] The Area and Number of Intraretinal Cystoid Spaces Predict the Visual Outcome after Ranibizumab Monotherapy in Diabetic Macular Edema2020

    • Author(s)
      Nagai Norihiro、Suzuki Misa、Uchida Atsuro、Kurihara Toshihide、Ban Norimitsu、Minami Sakiko、Shinoda Hajime、Tsubota Kazuo、Ozawa Yoko
    • Journal Title

      Journal of Clinical Medicine

      Volume: 9 Pages: 1391~1391

    • DOI

      10.3390/jcm9051391

    • Peer Reviewed / Open Access
  • [Journal Article] Ocular and Systemic Effects of Antioxidative Supplement Use in Young and Healthy Adults: Real-World Cross-Sectional Data2020

    • Author(s)
      Minami Sakiko、Nagai Norihiro、Suzuki Misa、Uchida Atsuro、Shinoda Hajime、Tsubota Kazuo、Ozawa Yoko
    • Journal Title

      Antioxidants

      Volume: 9 Pages: 487~487

    • DOI

      10.3390/antiox9060487

    • Peer Reviewed / Open Access
  • [Journal Article] Hyperreflective Material in Optical Coherence Tomography Images of Eyes with Myopic Choroidal Neovascularization May Affect the Visual Outcome2020

    • Author(s)
      Mushiga Yasuaki、Minami Sakiko、Uchida Atsuro、Nagai Norihiro、Suzuki Misa、Kurihara Toshihide、Sonobe Hideki、Ban Norimitsu、Watanabe Kazuhiro、Shinoda Hajime、Tsubota Kazuo、Ozawa Yoko
    • Journal Title

      Journal of Clinical Medicine

      Volume: 9 Pages: 2394~2394

    • DOI

      10.3390/jcm9082394

    • Peer Reviewed / Open Access
  • [Journal Article] Closure of macular hole secondary to ischemic hemi-central retinal vein occlusion by retinal photocoagulation and topical anti-inflammatory treatment2020

    • Author(s)
      Asato Teru、Nagai Norihiro、Suzuki Misa、Uchida Atsuro、Kurihara Toshihide、Ban Norimitsu、Minami Sakiko、Shinoda Hajime、Tsubota Kazuo、Ozawa Yoko
    • Journal Title

      Lasers in Medical Science

      Volume: 36 Pages: 469~471

    • DOI

      10.1007/s10103-020-03133-9

    • Peer Reviewed / Open Access
  • [Journal Article] Risk of newly developing visual field defect and neurodegeneration after pars plana vitrectomy for idiopathic epiretinal membrane2020

    • Author(s)
      Akino Kunihiko、Nagai Norihiro、Watanabe Kazuhiro、Ban Norimitsu、Kurihara Toshihide、Uchida Atsuro、Shinoda Hajime、Tsubota Kazuo、Ozawa Yoko
    • Journal Title

      British Journal of Ophthalmology

      Volume: - Pages: -

    • DOI

      10.1136/bjophthalmol-2020-317478

    • Peer Reviewed / Open Access
  • [Journal Article] Association between axial length and choroidal thickness in early age-related macular degeneration2020

    • Author(s)
      Sato Maho、Minami Sakiko、Nagai Norihiro、Suzuki Misa、Kurihara Toshihide、Shinojima Ari、Sonobe Hideki、Akino Kunihiko、Ban Norimitsu、Watanabe Kazuhiro、Uchida Atsuro、Shinoda Hajime、Tsubota Kazuo、Ozawa Yoko
    • Journal Title

      PLOS ONE

      Volume: 15 Pages: -

    • DOI

      10.1371/journal.pone.0240357

    • Peer Reviewed / Open Access
  • [Journal Article] Renin-angiotensin system impairs macrophage lipid metabolism to promote age-related macular degeneration in mouse models2020

    • Author(s)
      Nagai Norihiro、Kawashima Hirohiko、Toda Eriko、Homma Kohei、Osada Hideto、Guzman Naymel A.、Shibata Shinsuke、Uchiyama Yasuo、Okano Hideyuki、Tsubota Kazuo、Ozawa Yoko
    • Journal Title

      Communications Biology

      Volume: 3 Pages: -

    • DOI

      10.1038/s42003-020-01483-2

    • Peer Reviewed / Open Access
  • [Presentation] Effect of Axial Length and Age on the Visual Outcome of Patients with Idiopathic Epiretinal Membrane after Pars Plana Vitrectomy.2020

    • Author(s)
      Ozawa Y
    • Organizer
      43th Annual Meeting Macula Society
    • Int'l Joint Research
  • [Presentation] Analysis of retinal disease mechanism by using MELAS patient-derived induced pluripotent stem cell lines.2020

    • Author(s)
      Homma K, Narimatsu T, Tsubota K, Okano H, Ozawa Y
    • Organizer
      The Association for Research in Vision and Ophthalmology
    • Int'l Joint Research
  • [Presentation] Factors associated with visual outcome after anti-vascular endothelial growth factor therapy in myopic choroidal neovascularization.2020

    • Author(s)
      Minami S, Uchida A, Mushiga Y, Nagai N, Suzuki M, Watanabe K, Sonobe H, Kurihara T, Shinoda H, Tsubota K, Ozawa Y
    • Organizer
      The Association for Research in Vision and Ophthalmology
    • Int'l Joint Research
  • [Presentation] The area and number of intraretinal cystoid spaces predict the visual outcome after intravitreal ranibizumab monotherapy in diabetic macular edema.2020

    • Author(s)
      Ozawa Y
    • Organizer
      The Retina Society 53rd Annual Meeting
    • Int'l Joint Research
  • [Presentation] Age-related Macular Degeneration (AMD) Current treatments and look ahead.2020

    • Author(s)
      Ozawa Y
    • Organizer
      Malaysian Community Pharmacy Business Forum. Latest Insights Into Age-related Macular Degeneration (AMD)
    • Int'l Joint Research / Invited
  • [Presentation] 黄斑円孔に対する硝子体手術における内境界膜剥離の術後視野障害への影響.2020

    • Author(s)
      秋野邦彦、渡邊一弘、篠田肇、永井紀博、栗原俊英、内田敦郎、伴紀充、園部秀樹、坪田 一男、小沢洋子
    • Organizer
      第124回日本眼科学会総会
  • [Presentation] ミトコンドリア脳筋症疾患iPS細胞由来網膜色素上皮細胞の遺伝子発現解析.2020

    • Author(s)
      本間耕平、坪田一男、岡野栄之、小沢洋子
    • Organizer
      第41回日本炎症・再生医学会
  • [Presentation] Analysis of degeneration mechanism in retinal pigment epithelium-derived from human induced pluripotent stem cells with mitochondria DNA mutation.2020

    • Author(s)
      Homma K, Narimatsu T, Tsubota K, Okano H, Ozawa Y
    • Organizer
      第43回日本神経科学大会
  • [Presentation] ミトコンドリア病疾患iPS細胞由来網膜色素上皮細胞の変性メカニズム解析.2020

    • Author(s)
      本間耕平、坪田一男、岡野栄之、小沢洋子
    • Organizer
      第23回視覚科学フォーラム
  • [Presentation] Intravitreal aflibercept therapy for nAMD in Japan: 36-month real-world data.2020

    • Author(s)
      Ozawa Y, Sato S, Sunaya T, Tsujimura J, Ohgami K
    • Organizer
      第74回日本臨床眼科学会
  • [Presentation] 中心性漿液性脈絡網膜症のマルチモダルイメージングによる異常領域の検討2020

    • Author(s)
      篠島亜里, 小沢洋子, 内田敦郎, 永井紀博, 篠田肇, 栗原俊英, 鈴木美砂, 南早紀子,坪田一男
    • Organizer
      第59回日本網膜硝子体学会総会
  • [Presentation] 黄斑円孔に対する硝子体手術における内境界膜剥離の術後視野障害への影響.2020

    • Author(s)
      秋野邦彦、永井紀博、篠田肇、栗原俊英、内田敦郎、伴紀充、渡邊一弘、堀内直樹、坪田一男、小沢洋子
    • Organizer
      第59回日本網膜硝子体学会総会

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Published: 2021-12-27  

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