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2018 Fiscal Year Research-status Report

加齢黄斑変性における脈絡膜新生血管発生と網膜細胞障害の機序解明と臨床への応用

Research Project

Project/Area Number 18K09416
Research InstitutionNagoya City University

Principal Investigator

平野 佳男  名古屋市立大学, 大学院医学研究科, 講師 (40405163)

Co-Investigator(Kenkyū-buntansha) 小椋 祐一郎  名古屋市立大学, 大学院医学研究科, 教授 (70191963)
Project Period (FY) 2018-04-01 – 2021-03-31
Keywords加齢黄斑変性 / 脈絡膜新生血管 / 炎症 / アポトーシス
Outline of Annual Research Achievements

本年度は、マウス実験的脈絡膜新生血管(Choroidal Neovascularization: CNV)における、High-mobility group protein B1 (HMGB1)の関与解明を目的とした。1. マウス実験的CNVにおけるHMGB1の過剰発現の確認. 麻酔下でC57BL6Jマウスの眼底にレーザーを行い、CNVを作成した。レーザー施行後、12時間、1日、3日、7日後に眼球を摘出し、網膜と網膜色素上皮-脈絡膜複合体に分離し、それぞれのサンプルを使って、ELISA法あるいは、ウェスタンブロッテイング法でHMGB1の過剰発現を確認した。対照は、レーザーを施行していない眼球とした。2. 抗HMGB1抗体によるマウス実験的CNVの抑制効果の検証. 麻酔下でC57BL6Jマウスの眼底にレーザーを行い、実験的CNVを作成、その直後にマウスの硝子体内に抗HMGB1抗体を注射した。反対眼にはアイソタイプの抗IgG抗体を対照として同様に注射した。レーザーと硝子体注射6日後にフルオレセイン蛍光眼底造影検査(FA)を行い、CNVの活動性を対照群と比較した。また7日後に眼球摘出し、網膜色素上皮-脈絡膜のフラットマウントを作成し、FITC標識レクチンでCNVを染色し、共焦点顕微鏡でCNVの画像を撮影し、ImageJソフトウェアでCNVの体積を測定し対照と比較した。抗HMGB1抗体を投与したものでは、有意にCNVの活動性とサイズが抑制されていることが確認できた。

Current Status of Research Progress
Current Status of Research Progress

3: Progress in research has been slightly delayed.

Reason

実験を担当していた大学院生が関連病院に出向になり、動物実験に充分な時間を確保することが困難になっているため。

Strategy for Future Research Activity

大学院生、実験助手の確保など、人員の補充に取り組む。

Causes of Carryover

(理由)
物品購入の際に端数が生じた。
(使用計画)
物品費として使用する。

  • Research Products

    (17 results)

All 2019 2018 Other

All Int'l Joint Research (1 results) Journal Article (10 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 10 results,  Open Access: 3 results) Presentation (6 results) (of which Int'l Joint Research: 6 results,  Invited: 2 results)

  • [Int'l Joint Research] バージニア大学/ケンタッキー大学(米国)

    • Country Name
      U.S.A.
    • Counterpart Institution
      バージニア大学/ケンタッキー大学
  • [Journal Article] Fundus autofluorescence and retinal sensitivity in fellow eyes of age-related macular degeneration in Japan2019

    • Author(s)
      Yasukawa Tsutomu、Mori Ryusaburo、Sawa Miki、Shinojima Ari、Hara Chikako、Sekiryu Tetsuju、Oshima Yuji、Saito Masaaki、Sugano Yukinori、Kato Aki、Ashikari Masayuki、Hirano Yoshio、et al.
    • Journal Title

      PLOS ONE

      Volume: 14 Pages: e0213161

    • DOI

      10.1371/journal.pone.0213161

    • Peer Reviewed / Open Access
  • [Journal Article] Multimodal Imaging in a Case of Idiopathic Neuroretinitis2018

    • Author(s)
      Esaki Yuya、Hirano Yoshio、Yasuda Yusuke、Tomiyasu Taneto、Suzuki Norihiro、Yasukawa Tsutomu、Ogura Yuichiro
    • Journal Title

      Case Reports in Ophthalmology

      Volume: 9 Pages: 487~492

    • DOI

      10.1159/000495286

    • Peer Reviewed / Open Access
  • [Journal Article] Collateral vessels on optical coherence tomography angiography in eyes with branch retinal vein occlusion2018

    • Author(s)
      Suzuki Norihiro、Hirano Yoshio、Tomiyasu Taneto、Kurobe Ryo、Yasuda Yusuke、Esaki Yuya、Yasukawa Tsutomu、Yoshida Munenori、Ogura Yuichiro
    • Journal Title

      British Journal of Ophthalmology

      Volume: - Pages: epub

    • DOI

      10.1136/bjophthalmol-2018-313322

    • Peer Reviewed
  • [Journal Article] Structural and Functional Analyses of Retinal Ischemia in Eyes with Retinal Vein Occlusion: Relationship with Macular Edema or Microaneurysm Formation2018

    • Author(s)
      Tomiyasu Taneto、Hirano Yoshio、Suzuki Norihiro、Esaki Yuya、Yasuda Yusuke、Uemura Akiyoshi、Yasukawa Tsutomu、Yoshida Munenori、Ogura Yuichiro
    • Journal Title

      Ophthalmic Research

      Volume: 61 Pages: 218~225

    • DOI

      10.1159/000493489

    • Peer Reviewed
  • [Journal Article] Six-month results of intravitreal ranibizumab for macular edema after branch retinal vein occlusion in a single-center prospective study: visual outcomes and microaneurysm formation2018

    • Author(s)
      Kawamura Mihoko、Hirano Yoshio、Yoshida Munenori、Mizutani Takeshi、Sugitani Kazuhiko、Yasukawa Tsutomu、Ogura Yuichiro
    • Journal Title

      Clinical Ophthalmology

      Volume: Volume 12 Pages: 1487~1494

    • DOI

      10.2147/OPTH.S170698

    • Peer Reviewed / Open Access
  • [Journal Article] Flattening of retinal pigment epithelial detachments after pneumatic displacement of submacular hemorrhages secondary to age-related macular degeneration2018

    • Author(s)
      Kimura Masayo、Yasukawa Tsutomu、Shibata Yu、Kato Aki、Hirano Yoshio、Uemura Akiyoshi、Yoshida Munenori、Ogura Yuichiro
    • Journal Title

      Graefe's Archive for Clinical and Experimental Ophthalmology

      Volume: 256 Pages: 1823~1829

    • DOI

      10.1007/s00417-018-4059-9

    • Peer Reviewed
  • [Journal Article] Peripheral Microvascular Abnormalities Detected by Wide-Field Fluorescein Angiography in Eyes with Branch Retinal Vein Occlusion2018

    • Author(s)
      Yasuda Yusuke、Hirano Yoshio、Esaki Yuya、Tomiyasu Taneto、Suzuki Norihiro、Yasukawa Tsutomu、Yoshida Munenori、Ogura Yuichiro
    • Journal Title

      Ophthalmic Research

      Volume: 61 Pages: 107~114

    • DOI

      10.1159/000488496

    • Peer Reviewed
  • [Journal Article] Clinical characteristics and outcomes of fall-related open globe injuries in Japan2018

    • Author(s)
      Morikawa Shohei、Japan-Clinical Research of Study (J-CREST) group、Okamoto Yoshifumi、Okamoto Fumiki、Inomoto Naoki、Ishikawa Hiroto、Harimoto Kozo、Ueda Tetsuo、Sakamoto Taiji、Oshika Tetsuro
    • Journal Title

      Graefe's Archive for Clinical and Experimental Ophthalmology

      Volume: 256 Pages: 1347~1352

    • DOI

      10.1007/s00417-018-3959-z

    • Peer Reviewed
  • [Journal Article] Clinical characteristics and visual outcomes of sport-related open globe injuries2018

    • Author(s)
      Morikawa Shohei、Okamoto Fumiki、Okamoto Yoshifumi、Inomoto Naoki、Ishikawa Hiroto、Ueda Tetsuo、Sakamoto Taiji、Hirano Yoshio、Sawada Osamu、Mori Junya、Takamura Yoshihiro、Oshika Tetsuro
    • Journal Title

      Acta Ophthalmologica

      Volume: 96 Pages: e898~e899

    • DOI

      10.1111/aos.13704

    • Peer Reviewed
  • [Journal Article] cGAS drives noncanonical-inflammasome activation in age-related macular degeneration2018

    • Author(s)
      Kerur Nagaraj、Fukuda Shinichi、Banerjee Daipayan、Kim Younghee、Fu Dongxu、Apicella Ivana、Varshney Akhil、Yasuma Reo、Fowler Benjamin J、Baghdasaryan Elmira、Marion Kenneth M、Huang Xiwen、Yasuma Tetsuhiro、Hirano Yoshio、et al.
    • Journal Title

      Nature Medicine

      Volume: 24 Pages: 50~61

    • DOI

      10.1038/nm.4450

    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Twenty-four month results of intravitreal ranibizumab for macular edema after branch retinal vein occlusion in a single-center prospective study: visual prognosis and rate of complete resolution of macular edema.2019

    • Author(s)
      Inagaki Miho, Hirano Yoshio, Suzuki Norihiro, Yasuda Yusuke, Kawamura Mihoko, Yasukawa Tsutomu, Yoshida Munenori, Ogura Yuichiro.
    • Organizer
      2019 ARVO
    • Int'l Joint Research
  • [Presentation] Multimodal Imaging of an Experimental Retinal Vein Occlusion Mouse Model.2019

    • Author(s)
      Suzuki Norihiro, Hirano Yoshio, Yasukawa Tsutomu, Yoshida Munenori, Ogura Yuichiro.
    • Organizer
      2019 APAO
    • Int'l Joint Research
  • [Presentation] Collateral Vessels on Optical Coherence Tomography Angiography in Eyes with Branch Retinal Vein Occlusion.2019

    • Author(s)
      Suzuki Norihiro, Hirano Yoshio, Tomiyasu Taneto, Kurobe Ryo, Yasuda Yusuke, Esaki Yuya, Yasukawa Tsutomu, Yoshida Munenori, Ogura Yuichiro.
    • Organizer
      The 44the Annual Meeting of Japanese Society for Microcirculation
    • Int'l Joint Research
  • [Presentation] Collateral Vessels on Optical Coherence Tomography Angiography in Macular Edema Associated with Branch Retinal Vein Occlusion.2018

    • Author(s)
      Suzuki Norihiro, Hirano Yoshio, Tomiyasu Taneto, Yasuda Yusuke, Esaki Yuya, Yasukawa Tsutomu, Yoshida Munenori, Ogura Yuichiro.
    • Organizer
      2018 APVRS
    • Int'l Joint Research
  • [Presentation] OCT Angiography Imaging of Retinal Vein Occlusion.2018

    • Author(s)
      Hirano Yoshio
    • Organizer
      2018 APVRS
    • Int'l Joint Research / Invited
  • [Presentation] Retinal Microcirculation in Retinal Vein Occlusion.2018

    • Author(s)
      Hirano Yoshio
    • Organizer
      Nagoya City University & Hallym University International Joint Symposium 2018
    • Int'l Joint Research / Invited

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Published: 2019-12-27  

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