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

グリア細胞のサブタイプと神経前駆細胞の起源

Research Project

Project/Area Number 17700344
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Nerve anatomy/Neuropathology
Research InstitutionTokyo Metropolitan Organization for Medical Research

Principal Investigator

中村 和昭  Tokyo Metropolitan Organization for Medical Research, 東京都神経科学総合研究所, 研究員 (80392356)

Project Period (FY) 2005 – 2007
Project Status Completed (Fiscal Year 2007)
Budget Amount *help
¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 2007: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2006: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 2005: ¥1,900,000 (Direct Cost: ¥1,900,000)
Keywordsグリア / 神経前駆細胞 / 神経分化 / 神経再生 / 神経変性
Research Abstract

本研究では,網膜特異的グリア細胞であるMuller細胞の細胞系譜を明らかにし,またMuller細胞のサブタイプの同定とサブタイプごとの分化・再生能を明らかにし,損傷網膜に対する再生療法の可能性を検討することを目的とした.これまでにMuller細胞の分化機構を明らかにしていく中で,bHLH型転写因子であるolig2が網膜前駆細胞に発現し,Muller細胞を含む網膜細胞への分化後は発現が消失することを見出してきた(Neuroreport 2006).本年度はMuller細胞の分化機構をさらに検討する中で,olig2とfamilyを形成するolig1も発生過程の網膜に発現していることを見出した.olig2が網膜前駆細胞に発現していたのとは異なり,olig1は胎生期の網膜神経細胞に一過性に発現がみられた.このことからolig2は網膜前駆細胞形成に,またolig1は網膜神経分化に関与すると考えられ,olig1およびolig2がMuller細胞を含む網膜細胞の分化を制御している一因子であることが示唆された.これらの知見はMuller細胞の再生能を考える上でも興味深い知見である.
また,本年度はMuller細胞の分化・再生能を用いた再生療法の可能性を検討する上で,網膜神経細胞死機構についても検討を行った.この中で,網膜発生過程におけるapoptosisによる細胞死がp75^NTR とsortihnの受容体複合体形成状態により制御されていることを見出した(Cell Death and Differentiation 2007).この知見は障害・変性網膜細胞死機構を明らかにする上でも有用な知見であり,今後の再生療法の検討にも大きく寄与するものである.

Report

(3 results)
  • 2007 Annual Research Report
  • 2006 Annual Research Report
  • 2005 Annual Research Report
  • Research Products

    (12 results)

All 2007 2006 2005 Other

All Journal Article (11 results) (of which Peer Reviewed: 3 results) Presentation (1 results)

  • [Journal Article] Intracelluar sortilin expression pattern regulates proNGF-induced naturally occurring cell death during development2007

    • Author(s)
      Nakamura K
    • Journal Title

      Cell Death and Differentiation 14

      Pages: 1552-1554

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Inhibition of glial cell activation ameliorates the severity of experimental autoimmune encephalomyelitis2007

    • Author(s)
      Guo X
    • Journal Title

      Neuroscience Research 59

      Pages: 457-466

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The potential role of gutamate transporters in the pathogenesis of normal tension glaucoma2007

    • Author(s)
      Harada T
    • Journal Title

      Journal of Clinical Investigation 117

      Pages: 1763-1770

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of photoreceptor degeneration on RNA splicing and expression of AMPA receptors.2006

    • Author(s)
      Namekata K.
    • Journal Title

      Molecular Vision 12

      Pages: 1586-1593

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Role of monocyte chemotactic protein-1 and nuclear factor kappa B in the pathogenesis of proliferative diabetic retinopathy.2006

    • Author(s)
      Harada C.
    • Journal Title

      Diabetes research and clinical practice 74・3

      Pages: 249-256

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Expression of olig2 in retinal progenitor cells.2006

    • Author(s)
      Nakamura K.
    • Journal Title

      NeuroReport 17(4)

      Pages: 345-349

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Role of apoptosis signal-regulating kinase 1 in stress-induced neural cell apoptosis in vivo.2006

    • Author(s)
      Harada C.
    • Journal Title

      American Journal of Pathology 168(1)

      Pages: 261-269

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Effect of p75^<NTR> on the regulation of naturally occuring cell death and retinal ganglion cell number in the mouse eye.2006

    • Author(s)
      Harada C.
    • Journal Title

      Developmental Biology 290(1)

      Pages: 57-65

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Activation protein-1 in epiretinal membranes of proliferative diabetic retinopathy.2006

    • Author(s)
      Mitamura Y.
    • Journal Title

      Diabetologia 49

      Pages: 209-211

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Effect of p75^<NTR> on the regulation of photoreceptor apoptosis in the rd mouse.2005

    • Author(s)
      Nakamura K.
    • Journal Title

      Molecular Vision 11

      Pages: 1229-1235

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Glycated albumin induces activation of activator protein-1 in retinal glial cells.

    • Author(s)
      Okumura K.
    • Journal Title

      Japanese Journal of Ophthalmology (in press)

    • Related Report
      2006 Annual Research Report
  • [Presentation] Intracellular sortilin expression pattern regulates proNGF-induced naturally occurring cell death during development2007

    • Author(s)
      Nakamura K
    • Organizer
      The 37th annual meeting of the Society for Neuroscience
    • Place of Presentation
      San Diego Convention Convention center
    • Year and Date
      2007-11-04
    • Related Report
      2007 Annual Research Report

URL: 

Published: 2005-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi