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Melanocyte stem cells as a niche for corneal epithelial stem cells

Research Project

Project/Area Number 25861650
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Ophthalmology
Research InstitutionKeio University

Principal Investigator

MIYASHITA Hideyuki  慶應義塾大学, 医学部, 特任助教 (60424173)

Research Collaborator SHIMMURA Shigeto  慶應義塾大学, 医学部(信濃町), 准教授 (00235780)
NIWANO Hiroko  慶應義塾大学, 医学部(信濃町), 研究員 (90748518)
Project Period (FY) 2013-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2014: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords上皮幹細胞 / メラノサイト / 培養上皮シート / 角膜輪部上皮 / 幹細胞ニッチ / 角膜上皮幹細胞
Outline of Final Research Achievements

Based on the localization of melanocytes in primary human limbal epithelial cell sheets, we hypothesized that melanocytes or melanocyte stem cells act as a limbal epithelial stem cell niche, even in vitro. However, our results suggested that although melanocytes in vitro supplied melanosome to the epithelial cells, melanocytes seemed to not have the additional effects on epithelial stem cells in vitro. Rather, limbal epithelial stem/progenitor cells seemed to maintain melanocytes in vitro. We intend to report our data including melanocyte localization in epithelial sheets by paper.

Report

(3 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • Research Products

    (6 results)

All 2015 2014 2013

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (5 results)

  • [Journal Article] Long-term maintenance of limbal epithelial progenitor cells using rho kinase inhibitor and keratinocyte growth factor.2013

    • Author(s)
      Miyashita H, Yokoo S, Yoshida S, Kawakita T, Yamagami S, Tsubota K, Shimmura S.
    • Journal Title

      Stem Cells Transl Med

      Volume: 2 Issue: 10 Pages: 758-765

    • DOI

      10.5966/sctm.2012-0156

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Presentation] 培養上皮における秩序: K15陽性細胞、label retaining cellsとrapidly proliferating cells.2015

    • Author(s)
      宮下英之,坪田一男,榛村重人
    • Organizer
      第14回再生医療学会総会
    • Place of Presentation
      神奈川県横浜市
    • Year and Date
      2015-03-19 – 2015-03-21
    • Related Report
      2014 Annual Research Report
  • [Presentation] Localization of label retaining cells and rapidly proliferating cells in 6-month cultured primary human limbal epithelial cell sheets.2015

    • Author(s)
      Miyashita H, Tsubota K, Shimmura S.
    • Organizer
      2015 Asia-ARVO
    • Place of Presentation
      Yokohama, Japan
    • Year and Date
      2015-02-16 – 2015-02-19
    • Related Report
      2014 Annual Research Report
  • [Presentation] 培養上皮シートにおけるLabel retaining cells.2015

    • Author(s)
      宮下英之,坪田一男,榛村重人
    • Organizer
      角膜カンファランス2015
    • Place of Presentation
      高知県高知市
    • Year and Date
      2015-02-11 – 2015-02-13
    • Related Report
      2014 Annual Research Report
  • [Presentation] ヒト輪部上皮シート長期培養系を用いた上皮ターンオーバー率の推定2014

    • Author(s)
      宮下英之、羽藤晋、吉田悟、坪田一男、榛村重人
    • Organizer
      角膜カンファランス2014
    • Place of Presentation
      沖縄県宜野湾市
    • Related Report
      2013 Research-status Report
  • [Presentation] Self-assembly of the limbal epithelial stem cell niche in vitro2013

    • Author(s)
      Hideyuki Miyashita, Satoru Yoshida, Tetsuya Kawakita, Kazuo Tsubota, Shigeto Shimmura
    • Organizer
      ARVO2013
    • Place of Presentation
      米国ワシントン州シアトル市
    • Related Report
      2013 Research-status Report

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Published: 2014-07-25   Modified: 2019-07-29  

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