• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

A study for intercellular signals and their control mechanisms involved in tissue remodeling in injured retina

Research Project

Project/Area Number 17K11485
Research Category

Grant-in-Aid for Scientific Research (C)

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

Principal Investigator

Fukushima Mikiko  熊本大学, 病院, 非常勤診療医師 (10284770)

Co-Investigator(Kenkyū-buntansha) 井上 俊洋  熊本大学, 大学院生命科学研究部(医), 教授 (00317025)
高橋 枝里  熊本大学, 病院, 講師 (60622602)
伊藤 康裕  熊本大学, 病院, 助教 (70380996)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords眼発生・再生医学 / 眼科 / 再生医学 / 細胞・組織 / 眼科学 / 再生医療
Outline of Final Research Achievements

This study was related to the intercellular signals involved in tissue remodeling and its control mechanism as a basic research for the clinical application of the retina regeneration therapy. It was possible to suppress glial differentiation of neural stem cells transplanted as well as the expression of CNTF belonging to an inflammatory cytokine by a non-steroidal anti-inflammatory agent administered in the retinal injury animal model. Then the effect of DNA methylation inhibitors on epithelial-mesenchymal cell transdifferentiation was shown to suppress tissue scarring. It was suggested an indirect inhibitory effect of the inhibitor on the COL1A2 promoter. Furthermore, we demonstrated that RPE cells stimulated with different growth factors secreted their exosomes with different effects on the angiogenic response of human umbilical vein endothelial cells. We suggested the exosomes was a cell signal to vascular endothelium of retinal pigment epithelial cells for tissue remodeling.

Academic Significance and Societal Importance of the Research Achievements

難治網膜疾患に対する新たな治療戦略のひとつとして網膜移植再生治療が期待されている。一方、対象となる疾患の病態は多彩であり、傷害された組織を再構築し機能を回復させるに十分な治療技術となるには、まだ克服すべき課題がある。実際の移植再生治療を必要とする網膜疾患は組織傷害が進行し神経細胞のみならず組織全体が機能不全に陥った状態にある。神経細胞が機能を発揮するためには、神経系のみならず脈管系、免疫系の生体システムが関与する幹細胞の支持環境を宿主網膜に誘導する必要がある。本研究は組織再構築に関わる細胞間シグナルに着目したもので網膜移植治療の臨床応用に向けた多岐の課題を打破するための一石となるものと考える。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (4 results)

All 2019 2018

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 4 results)

  • [Journal Article] DNA methyltransferase inhibitor suppresses fibrogenetic changes in human conjunctival fibroblasts.2019

    • Author(s)
      Yonemura, H, Futakuchi A, Inoue-Mochita, M, Fujimoto T, Takahashi E, Tanihara H, Inoue T.
    • Journal Title

      Mol Vis.

      Volume: 25 Pages: 382-390

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Interleukin-6?mediated trans-signaling inhibits transforming growth factor-β signaling in trabecular meshwork cells2018

    • Author(s)
      Inoue-Mochita Miyuki、Inoue Toshihiro、Kojima Sachi、Futakuchi Akiko、Fujimoto Tomokazu、Sato-Ohira Saori、Tsutsumi Utako、Tanihara Hidenobu
    • Journal Title

      Journal of Biological Chemistry

      Volume: 293 Issue: 28 Pages: 10975-10984

    • DOI

      10.1074/jbc.ra118.003298

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Stimulation of the adenosine A3 receptor, not the A1 or A2 receptors, promote neurite outgrowth of retinal ganglion cells2018

    • Author(s)
      Nakashima Kei-Ichi、Iwao Keiichiro、Inoue Toshihiro、Haga Akira、Tsutsumi Takayuki、Mochita Miyuki Inoue、Fujimoto Tomokazu、Tanihara Hidenobu
    • Journal Title

      Experimental Eye Research

      Volume: 170 Pages: 160-168

    • DOI

      10.1016/j.exer.2018.02.019

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Decreased MCP-1/CCR2 axis-mediated chemotactic effect of conjunctival fibroblasts after transdifferentiation into myofibroblasts.2018

    • Author(s)
      Tsutsumi-Kuroda U, Inoue T, Futakuchi A, Shobayashi K, Takahashi E, Kojima S, Inoue-Mochita M, Fujimoto T, Tanihara H.
    • Journal Title

      Exp Eye Res.

      Volume: 170 Pages: 76-80

    • DOI

      10.1016/j.exer.2018.02.008

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access

URL: 

Published: 2017-04-28   Modified: 2021-02-19  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi