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Analysis of Corneal Epithelium-Specific Protein & its Clinical Application

Research Project

Project/Area Number 06454497
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field Ophthalmology
Research InstitutionEhime University School of Medicine

Principal Investigator

OHASHI Yuichi  Ehime University School of Medicine, Professor, 医学部, 教授 (00116005)

Co-Investigator(Kenkyū-buntansha) HANDA Hiroshi  Tokyo College of Technology, Professor, 生命理工学部, 教授 (80107432)
Project Period (FY) 1994 – 1995
Project Status Completed (Fiscal Year 1995)
Budget Amount *help
¥6,200,000 (Direct Cost: ¥6,200,000)
Fiscal Year 1995: ¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 1994: ¥4,500,000 (Direct Cost: ¥4,500,000)
KeywordsCorneal epithelium / Immortalization / Corneal Transplantation / Three dimension culture / Functional differentiation / SV40 / SV 40-アデノウイルスベクター / 不死化細胞 / サイトケラチン / アルデヒドデヒドロゲナーゼ / 細胞培養
Research Abstract

We have succeeded in immortalizing human corneal epithelial cells for the first time by using a recombinant SV40-adenovirus vector. These immortalized cells retained several properties consistent with epithelial cells, including formation of microvilli and desmosome as well as existence of aldehyde dehydrogenase. RT-PCR has demonstrated the expression of type 1 transglutaminase in these cells. Also, cornifin was found positive by immunohistochemical technique at the area where the cells became stratified. The expression of cadherin was increased in the presence of substance P,suggesting this cell line can be used for studying the machanism of adhesion and differentiation of corneal epithelium. When seeded onto a human keratocyte-containing type II collagen matrix, these immortalized corneal epithelial cells formed a stratified layr. This reconstructed tissue may be applicable as a transient substitute of corneal epithelial cells. In addition, in vitro test for screening the cytotoxicity of eyedrop solution has been developed in our laboratory using lactic dehydrogenase as a indicator, and has disclosed the cytotoxicity of unoprostone and timolol to corneal epithelial cells as has been experienced in clinical situation. This particular cell line has been widely distributed to number of research laboratories and extensively used as a source of human corneal epithelial cells.

Report

(3 results)
  • 1995 Annual Research Report   Final Research Report Summary
  • 1994 Annual Research Report
  • Research Products

    (16 results)

All Other

All Publications (16 results)

  • [Publications] Araki K,Ohashi Y,Kinoshita S,Hayashi K,Kuwayama Y,Tano Y.: "Epithelial wound healing in the denervated cornea." Curr Eye Res. 13-2. 203-211 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 荒木かおる,笹部哲生,大橋裕一,安田昌弘,半田宏,田野保雄.: "SV40-Adenovirusリコンビナントベクターにより不死化されたラット角膜上皮細胞について" 日本眼科学会雑誌. 98-4. 327-333 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Yao Y-F,Inoue Y,Hara Y,Kiritoshi A,Tano Y,Ohashi Y.: "Suppression of graft rejection ina rat keratopeithelioplasty by anterior chamber inoculation of donor lymphocytes." Jpn J Ophthalmol. 38-4. 345-352 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Sasaki-Araki K,Ohashi Y,Sasabe T,Hayashi K,Watanabe H,Tano Y,Handa H.: "An SV40-immortalized human corneal epithelial cell line and its characterization." Invest Ophthalmol Vis Sci. 36-3. 614-621 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Yao Y-F,Inoue Y,Miyazaki D,Shimimura Y,Ohashi Y,Tano Y.: "Ocular resurfacing and alloepithelial rejection in a murine keratoepithelioplasty model." Invest Ophthalmol Vis Sci. 36-13. 2623-2633 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Araki K,Ohashi Y,Kinoshita S,Kuwayama Y,Tano Y: "Epithelial wound healing in the denervated cornea." Curr Eye Res. 13-2. 203-211 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Araki K,Sasabe T,Ohashi Y,Yasuda M,Hanada H,Tano Y: "Immortalization of rat corneal epithelial cells by SV40-adenovirus recombinant vector." J Jpn Ophthamol Soc.98-4. 327-333 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Yao Y-F,Inoue Y,Hara Y,Kiritoshi A,Tano Y,Ohashi Y: "Suppression of graft rejection in rat keratoepithelio-plasty by anterior camber inoculation of donor lymphocytes." Jpn J Ophthalmol. 38-4. 345-352 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Araki-Sasaki K,Ohashi Y,Sasabe T,Hayashi K,Watanabe H,Tano Y,Hanada H: "An Sv40-immortalized human corneal epithelial cell line and its characterization." Invest Ophthalmol Vis Sci. 36-3. 614-621 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Yao Y-F,Inoue Y,Miyazaki D,Shimomura Y,Ohashi Y,Tano Y: "Ocular resurfacing and alloepithelial rejection in a murine keratoepithelioplasty model." Invest Ophthalmol Vis Sci. 36-13. 2623-2633 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Sasaki-Araki K,Ohashi Y,Sasabe T,Hayashi K,Watanabe H,Tano Y,Handa H.: "An SV40-immortalized human corneal epithelial cell line and its characterization." Invest Ophthalmol Vis Sci. 36(3). 614-621 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Yao Y-F,Inoue Y,Miyazaki D,Shimimura Y,Ohashi Y,Tano Y.: "Ocular resurfacing and alloepithelial rejection in a murine keratoepithelioplasty model." Invest Ophthalmol Vis Sci. 36(13). 2623-2633 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Kaoru Araki: "Epithelial wound healing in the denervated cornea" Current Eye Research. 13. 203-211 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] Kaoru Araki: "SV40-Immortalized human corneal epithelial cells expressing aldehydedehydrogenase activity" Investigative Ophthalmology and Visual Sciences. In Press. (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 荒木かおる: "SV40-Adenovirusリコンビナントベクターにより不死化されたラット角膜上皮細胞について" 日本眼科学会雑誌. 98. 327-333 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 大橋裕一編: "点眼薬-常識と非常識" メジカルビュー社, 126 (1994)

    • Related Report
      1994 Annual Research Report

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Published: 1994-04-01   Modified: 2016-04-21  

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