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網膜色素変性の病因解明のための分子生物学的検討

Research Project

Project/Area Number 12771007
Research Category

Grant-in-Aid for Encouragement of Young Scientists (A)

Allocation TypeSingle-year Grants
Research Field Ophthalmology
Research InstitutionTohoku University

Principal Investigator

和田 裕子  東北大学, 医学部・附属病院, 助手 (70302130)

Project Period (FY) 2000 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥2,800,000 (Direct Cost: ¥2,800,000)
Fiscal Year 2001: ¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 2000: ¥1,600,000 (Direct Cost: ¥1,600,000)
Keywords網膜色素変性 / 遺伝子変異 / 高頻度変異 / 網膜色素変性症
Research Abstract

今年度は、X染色体劣性網膜色素変性の候補遺伝子であるRP2遺伝子を用いて検索を行い、世界で初めての遺伝子異常、およびその臨床像の報告を行った。
さらに、また、RDH5遺伝子1085delC/insGAAG変異が日本人眼底白点症の高頻度変異であり、Gly35Ser変異は進行性網膜変性を起こすことを報告し、眼底白点症の病態に関して新たな知見を与えた。また、今年度のもっとも強調したい実績は、日本人に特異的に網膜色素変性の原因遺伝子異常が存在するという観点から、現在までに網膜色素変性を起こすと報告されていない遺伝子に対して日本人患者でスクリーニングを施行した結果、日本人に高頻度に認められる遺伝子異常を発見し、さらにその臨床像の検討をおこなった。その結果、FSCN2遺伝子208delG変異は、日本人常染色体優性網膜色素変性の高頻度変異であるばかりでなく、この変異は。錐体桿体ジストロフィーを起こすことも見いだした。これらの業績は、平成13年アメリカで行われた国際学会で報告し、大きな反響を呼んだ。
また、遺伝子異常とその臨床像のデーターベース化を行い、臨床像から、原因遺伝子へアブローチできるような体制を作製し、現在も進行中である。
当教室は本邦における網膜色素変性の研究センター的機能を果し、全国の大学より本症患者の血液を集め、すでに1000例以上のゲノムDNAを保管しており、本研究をさらに発展できる準備は十分整っている。

Report

(2 results)
  • 2001 Annual Research Report
  • 2000 Annual Research Report
  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] Wada Y, Abe T, Takeshita T, Saro H, Tamai M.: "Mutation of Human retinal fascin gene(FSCN2)causes autosomal dominant retinitis pigmentosa"Invest Ophthalmol Vis Sci. 42. 2395-2410 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Wada Y, Abe T, Sato H, Tamai M: "A Novel Gly35ser Mutation in the RDH5 Gene in a Japanese Family with Fundus albipunctatus Associated with Cone Dystrophy"Arch Ophthalmol. 119. 1059-1063 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Wada Y, Abe T, Fuse N, Tamai M: "A Frequent 1085delC/insGAAG Mutations in the RDH5 Gene of the Japanese Patients with Fundus Albipunctatus"Invest Ophthalmol Vis Sci. 41. 1894-1897 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] Wada Y, Nakazawa M, Abe T, Tamai M: "A new Leu253Argmutation in the RP2 gene in a Japanese family with X-linked retinitis pigmentosa"Invest Ophthalmol Vis Sci. 41. 290-293 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] Wada Y, Nakazawa M, Abe T, Shiono T, Tamai M.: "Specular microscopic findings of corneal deposits in patients with Biettis crystalline corneal retinal dystrophy"Br. J. Ophthalmol. 83. 1098 (1999)

    • Related Report
      2001 Annual Research Report
  • [Publications] Wada Y. Abe T. Kawamura M, Tamai M.: "Clinical variability of Japanese patients with mutations of the RDH5 gene."In "Retinal Degenerative Diseases and Experimental Therapy". 23-28 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Wada Y,Abe T,Sato H,Tamai M.: "A Novel Gly35Ser Mutation in the RDH5 Gene in a Japanese Family with Fundus albipunctatus Associated with Cone Dystrophy"Arch Ophthalmol.. (in press). (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Wada Y,Abe T,Fuse N Tamai M: "A Frequent 1085delC/insGAAG Mutation in the RDH5 Gene of the Japanese Patients with Fundus Albipunctatus"Invest Ophthalmol Vis Sci. 41. 1894-1897 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Wada Y,Nakazawa M,Abe T,Tamai M: "A new Leu253Arg mutation in the RP2 gene in a Japanese family with X-linked retinitis pigmentosa."Invest Ophthalmol Vis Sci. 41. 290-293 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Wada Y,Nakazawa M,Abe T,Shiono T and Tamai M.: "Specular microscopic findings of corneal deposits in patients with Biettis crystalline corneal retinal dystrophy."Br.J.Ophthalmol. 83. 1098 (1999)

    • Related Report
      2000 Annual Research Report
  • [Publications] Wada Y,Nakazawa M,Abe T,Tamai M.: "mRNA analysis in Oguchi patients with 1147delA mutation in the arrestin gene."In "Retinal Degenerative Diseases and Experimental Therapy", ed, J.Hollyfield, R Anderson and M.LaVAil Plenum Publishing Corporation, New York,. 151-156 (1999)

    • Related Report
      2000 Annual Research Report
  • [Publications] Wada Y,Nakazawa M,Abe T and Tamai M.: "Ectopic transcription and mRNA editing in the human arrestin gene"J Jpn Ophthalmol.. 43. 295-299 (1999)

    • Related Report
      2000 Annual Research Report

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Published: 2000-04-01   Modified: 2016-04-21  

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