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Identification of neural stem cells in neural retina, ciliary body and iris

Research Project

Project/Area Number 13671834
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Ophthalmology
Research InstitutionKYOTO UNIVERSITY

Principal Investigator

TAKAHASHI Masayo  Kyoto University, Translational Research Center, Associate Professor, 医学研究科, 助教授 (80252443)

Co-Investigator(Kenkyū-buntansha) HARUTA Masatoshi  Kyoto University, Graduate School of Medicine, Assistant Professor, 医学研究科, 助手 (90359802)
TANABE Teruyo  Kyoto University, Graduate School of Medicine, Lecturer, 医学研究科, 講師 (80243020)
柏井 聡  京都大学, 医学研究科, 助教授 (50194717)
Project Period (FY) 2001 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 2002: ¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 2001: ¥1,800,000 (Direct Cost: ¥1,800,000)
Keywordsneural stem cells / neural progenitor cells / retinal transplantation / embryonic retina / ciliary body / iris / homeobox gene / photoreceptor cells / 胎仔網膜 / 毛様体上皮 / 虹彩上皮 / Crx
Research Abstract

Embryonic retina is one of the possible cell sources that will repair degenerated retina such as retimtis pigmentosa. Retinal progenitor cells isolated from embryonic rats could be cultured and expanded in serum free medium with both epidermal growth factor and basic fibroblast growth factor. We analyzed the properties of two different retinal progenitor cells in terms of culture periods. Retinal progenitor cells from embryonic retina could be expanded keeping immature cell properties and had the ability to migrate into degenerated adult retina from subretinal space after transplantation. They differentiated into neurons and glias, even into photoreceptor cells both in vitro and in vivo. However, they appeared to lose their tissue specificity after a long-term culture
We also showed that iris and ciliary tissue in the adult rat eye, which are embryonically related to the neural retina, can generate cells expressing differentiated neuronal antigens. In addition, the Crx gene transfer induced the specific antigens for rod photoreceptors in the iris-derived cells, which was not seen in the adult hippocampus-derived neural stem cells. Our findings demonstrate a remarkable plasticity of adult iris tissue with potential clinical applications, as autologous iris tissue can be feasibly obtained with peripheral iridectomy

Report

(3 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • Research Products

    (15 results)

All Other

All Publications (15 results)

  • [Publications] Haruta M.et al.: "Induction of photoreceptor-specific phenotypes in adult mammalian iris tissue"Nature Neuroscience. 4(12). 1163-1164 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Akagi T.et al.: "Different characteristics of rat retinal progenitor cells from different culture periods"Neuroscience Letter. 341(3). 213-216 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Harata M. et al.: "Induction of photoreceptor-specific phenotypes in adult mammalia iris tissue"Nature Neuroscdeace. 4(12). 1163-1164 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Akagi T. et al.: "Different characteristics of rat retinal progenitor cells from different culture periods"Neuroscience Letter. 341(3). 213-216 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Kawasaki H, et al.: "Generation of dopaminergic neurons and pigmented epithelia from primate ES cells by stromal cell-derived inducing activity"Proc Nati Acad Sci USA. 99. 1580-1585 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Akita J, et al.: "Neuronal differentiation of adult rat hippocampus-derived neural stem cell transplanted into embryonic rat explanted retinas with retinoic acid pretreatment"BRAIN RESEARCH. 954. 286-293 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Akagi T, et al.: "Different characteristics of retinal progenitor cells from different culture Deriods"Neurosci. Lett.. (in press).

    • Related Report
      2002 Annual Research Report
  • [Publications] Ooto S, et al.: "Induction of the differentiation of lentoids from primate embryonic stem cells"Invest. Ophthalmol. Vis. Sci.. (in press).

    • Related Report
      2002 Annual Research Report
  • [Publications] 筏 義人: "再生医療工学の最先端"シーエムシー出版. 265 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Kurimoto Y. et al.: "Transplantation of adult rat hippocampus-derived neural stem cells into retina injured by transient ischemia"Neurosci Lett. 306. 57-60 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Inatani M. et al.: "Upregulated expression of N-syndecan, a transmembrane heparan sulfate proteoglycan, in differentiated neural stem cells"Brain Res. 920. 217-221 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Haruta M. et al.: "Induction of photoreceptor-specific phenotypes in adult mammalian iris tissue"Nat Neurosci. 4. 1163-1164 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Kawasaki H. et al.: "Generation of dopaminergic neurons and pigmented epithelia from primate ES cells by stromal cell-derived inducing activity"Proc Nati Acad Sci U S A. 99. 1580-1585 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] 秋田穣 他: "出血のない時期の特発性ポリープ状脈絡膜血管症-中心性しょう液性網脈絡膜症との鑑別-"眼科臨床医報. 95. 702-707 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 雨宮かおり 他: "若年の網膜色素変性患者に併発した黄斑円孔"日本眼科学会雑誌. (印刷中). (2002)

    • Related Report
      2001 Annual Research Report

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Published: 2001-04-01   Modified: 2016-04-21  

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