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Mechanisms of irreversible breakdown of blood-retina barrier following pericyte deficiency

Research Project

Project/Area Number 16H05155
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Pathological medical chemistry
Research InstitutionNagoya City University

Principal Investigator

Uemura Akiyoshi  名古屋市立大学, 大学院医学研究科, 教授 (30373278)

Co-Investigator(Kenkyū-buntansha) 西山 功一  熊本大学, 国際先端医学研究機構, 准教授 (80398221)
福嶋 葉子  大阪大学, 医学系研究科, 助教 (70647031)
Research Collaborator MURATA takahisa  
ISHIGURO toshina (Oonuma toshina)  
MIYATA takaki  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2018: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2017: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2016: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000)
Keywords血液網膜関門 / ペリサイト / 内皮細胞 / マクロファージ / 炎症 / VEGF / PlGF / angiopoietin-2 / 線維化 / 網膜色素上皮細胞 / 糖尿病網膜症
Outline of Final Research Achievements

The blood-retina barrier (BRB) comprising of endothelial cells (ECs) and pericytes contributes to maintaining the homeostasis of neural tissues. In pericyte-deficient retinas of neonatal mice injected with an anti-PDGFRβ antibody, infiltrating macrophages produced VEGFA, which activated VEGFR2 in ECs. Macrophage-derived VEGFA and PlGF further activated VEGFR1 in an autocrine or paracrine manner, thereby facilitating cell movements. Moreover, antiopoietin-2 secreted from ECs augmented hyperpermeability, angiogenesis, and inflammation. This EC-macrophage cycle initiated by pericyte deficiency led to irreversible BRB breakdown.

Academic Significance and Societal Importance of the Research Achievements

糖尿病網膜症ではペリサイトの変性・脱落により血液網膜関門が破綻するが、高血糖モデル動物ではヒト網膜症を再現できないため、その病態進展機構は不明である。本研究では、高血糖を介さずにマウス網膜血管壁のペリサイトを消失させることにより、血液網膜関門が不可逆的に破綻する細胞・分子機構を解明した。本研究の成果は糖尿病網膜症に限らず、血液脳関門の破綻をきたす中枢神経系疾患の病態解明・治療法開発に資すると期待される。

Report

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

    (22 results)

All 2018 2017 2016 Other

All Int'l Joint Research (3 results) Journal Article (5 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 5 results,  Open Access: 4 results,  Acknowledgement Compliant: 1 results) Presentation (14 results) (of which Int'l Joint Research: 5 results,  Invited: 12 results)

  • [Int'l Joint Research] University College London(英国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] KAIST(韓国)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] KAIST(韓国)

    • Related Report
      2016 Annual Research Report
  • [Journal Article] Cataract-preventing contact lens for in vivo imaging of mouse retina.2018

    • Author(s)
      Ikeda W, Nakatani T, Uemura A
    • Journal Title

      Biotechniques

      Volume: 65 Issue: 2 Pages: 101-104

    • DOI

      10.2144/btn-2018-0040

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Inhibition of stromal cell-derived factor-1α/CXCR4 signaling restores the blood-retina barrier in pericyte-deficient mouse retinas.2018

    • Author(s)
      Omori K, Nagata N, Kurata K, Fukushima Y, Sekihachi E, Fujii N, Namba-Hamano T, Takabatake Y, Fruttiger M, Nagasawa T, Uemura A, Murata T
    • Journal Title

      JCI Insight

      Volume: 3 Issue: 23 Pages: 120706-120706

    • DOI

      10.1172/jci.insight.120706

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Pathophysiology of Diabetic Retinopathy: The Old and the New2018

    • Author(s)
      Kusuhara Sentaro、Fukushima Yoko、Ogura Shuntaro、Inoue Naomi、Uemura Akiyoshi
    • Journal Title

      Diabetes & Metabolism Journal

      Volume: 42 Issue: 5 Pages: 364-364

    • DOI

      10.4093/dmj.2018.0182

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Pharmacologic management of diabetic retinopathy.2018

    • Author(s)
      Uemura A.
    • Journal Title

      J Biochem

      Volume: 163 Issue: 1 Pages: 3-9

    • DOI

      10.1093/jb/mvx057

    • NAID

      40021457332

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Sustained inflammation after pericyte depletion induces irreversible blood-retina barrier breakdown2017

    • Author(s)
      Ogura S, Kurata K, Hattori Y, Takase H, Ishiguro-Oonuma T, Hwang Y, Ahn S, Park I, Ikeda W, Kusuhara S, Fukushima Y, Nara H, Sakai H, Fujiwara T, Matsushita J, Ema M, Hirashima M, Minami T, Shibuya M, Takakura N, Kim P, Miyata T, Ogura Y, Uemura A
    • Journal Title

      JCI Insight

      Volume: 2 Issue: 3

    • DOI

      10.1172/jci.insight.90905

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Presentation] Sustained inflammation and fibrosis in pericyte-deficient retina2018

    • Author(s)
      Uemura A
    • Organizer
      International Congress of Diabetes & Metabolism
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Live imaging of cell dynamics in pericyte-deficient retina2018

    • Author(s)
      Uemura A
    • Organizer
      18th EURETINA Congress
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Inflammation and fibrosis in pericyte-deficient retina2018

    • Author(s)
      植村明嘉
    • Organizer
      第61回日本糖尿病学会年次学術集会
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 統合的アプローチによる糖尿病網膜症研究の新展開2018

    • Author(s)
      植村明嘉
    • Organizer
      第122回日本眼科学会総会
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 網膜症発症機序の最新の知見2018

    • Author(s)
      植村明嘉
    • Organizer
      第52回糖尿病学の進歩
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] 網膜症に対する薬物療法の現状と展望2017

    • Author(s)
      植村明嘉
    • Organizer
      第32回糖尿病合併症学会・第23回日本糖尿病眼学会総会合同 シンポジウム
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] ペリサイト消失網膜における炎症と血管壁バリア破綻2017

    • Author(s)
      植村明嘉
    • Organizer
      ConBio2017 ワークショップ
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] Sustained inflammation and fibrosis in pericyte-deficient retinas2017

    • Author(s)
      Uemura A
    • Organizer
      アジア・オーストラリア血管生物会議2017 シンポジウム
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Pericyte depletion induces sustained inflammation and irreversible blood-retinal barrier breakdown2016

    • Author(s)
      植村明嘉
    • Organizer
      第24回日本血管生物医学会シンポジウム
    • Place of Presentation
      長崎ブリックホール(長崎県長崎市)
    • Year and Date
      2016-12-10
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] ペリサイトの一過性消失による血液網膜関門の不可逆的破綻2016

    • Author(s)
      植村明嘉
    • Organizer
      第39回日本分子生物学会年会シンポジウム
    • Place of Presentation
      パシフィコ横浜(神奈川県横浜市)
    • Year and Date
      2016-11-30
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] Blood-Retina Barrier Breakdown in Pericyte-Free Vessels2016

    • Author(s)
      植村明嘉
    • Organizer
      第70回日本臨床眼科学会シンポジウム
    • Place of Presentation
      国立京都国際会館(京都府京都市)
    • Year and Date
      2016-11-03
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] ペリサイト消失による血液網膜関門の不可逆的破綻2016

    • Author(s)
      植村明嘉
    • Organizer
      第89回日本生化学会大会シンポジウム
    • Place of Presentation
      仙台国際センター(宮城県仙台市)
    • Year and Date
      2016-09-26
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] 糖尿病網膜症の病態・生理2016

    • Author(s)
      植村明嘉
    • Organizer
      第59回日本糖尿病学会シンポジウム
    • Place of Presentation
      国立京都国際会館(京都府京都市)
    • Year and Date
      2016-05-21
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] ペリサイト消失による網膜血管バリア機能の破綻2016

    • Author(s)
      植村明嘉
    • Organizer
      第120回日本眼科学会総会シンポジウム
    • Place of Presentation
      仙台国際センター(宮城県仙台市)
    • Year and Date
      2016-04-07
    • Related Report
      2016 Annual Research Report
    • Invited

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

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