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錐体視物質のリン酸化を検出する新規の錐体視細胞障害判定システムの確立

Research Project

Project/Area Number 19659453
Research Category

Grant-in-Aid for Exploratory Research

Allocation TypeSingle-year Grants
Research Field Ophthalmology
Research InstitutionSapporo Medical University

Principal Investigator

大黒 浩  Sapporo Medical University, 医学部, 教授 (30203748)

Co-Investigator(Kenkyū-buntansha) 大黒 幾代  札幌医科大学, 医学部, 研究員 (90305235)
川田 浩克  札幌医科大学, 医学部, 助教 (60438009)
錦織 奈美  札幌医科大学, 医学部, 研究員 (30444920)
石川 太  札幌医科大学, 医学部, 講師 (00419962)
田中 祥恵  札幌医科大学, 医学部, 助教 (00438011)
Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥3,300,000 (Direct Cost: ¥3,300,000)
Fiscal Year 2008: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 2007: ¥2,000,000 (Direct Cost: ¥2,000,000)
Keywords網膜変性症 / ロドプシン / リン酸化 / 分子病態 / カルシウム / モデル動物 / 網膜視細胞 / 視物質 / 特異抗体 / 網膜変性
Research Abstract

遺伝性網膜変性症である網膜色素変性およびその類縁疾患は、病理学的には視細胞変性が主で根本的な治療法が確立していない難病で、臨床的に暗順応の低下、視野狭窄、網膜血管の狭細化および網膜電位図(ERG)でaおよびb波の低下を特徴とする。本疾患は本邦における中途失明の上位の原因疾患で、未だ治療法の確立していない本症の病態を解明し、新しい治療法を開発することは社会的に失明予防対策の観点からも非常に重要である。近年の研究によれば本症の原因として網膜色素上皮や網膜視細胞などの網膜神経細胞特異蛋白質をコードする遺伝子や網膜以外の細胞にも広く発現している種々の遺伝子の異常に起因していることが明らかとなっている。中でも主に桿体視細胞障害を呈する網膜色素変性では桿体視細胞の視物質ロドプシンのリン酸化の制御系に異常を来していることを示唆した。そこで今回さらにもう一方の錐体視細胞が傷害される錐体ジストロフィーにおいても類似の機構すなわち錐体視物質のリン酸化に異常がないかどうか検討する目的でまず錐体視物質のリン酸化を検出するためにリン酸化された錐体視物質に対する特異抗体を用いた新規の検出システムの確立を目指すために、3種類(赤、青、緑)の錐体視物質のC末端に存在する複数のセリン、スレオニン残基のリン酸化を特異的に認識する抗体をそれぞれの特異合成ペプチドを作成し、これをウサギに免疫して調整した。さらにこれを用いて人網膜の免疫染色を行ったところ錐体細胞特異的かつ光依存的な反応性を確認できた。

Report

(2 results)
  • 2008 Annual Research Report
  • 2007 Annual Research Report
  • Research Products

    (18 results)

All 2008 2007

All Journal Article (14 results) (of which Peer Reviewed: 14 results) Presentation (2 results) Book (2 results)

  • [Journal Article] Biological and pathological aspects of rhodopsin phosphorylation and dephosphorylation in mammalian retinal photoreceptors.2008

    • Author(s)
      Ohguro H
    • Journal Title

      Current Topics in Biochemical Research 10

      Pages: 23-31

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 網膜色素変性に対するあたらしい薬物治療の可能性2008

    • Author(s)
      大黒 浩
    • Journal Title

      日本眼科学会雑誌 112

      Pages: 7-21

    • NAID

      10020168223

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] わかりやすい臨床講座「癌関連網膜症」2008

    • Author(s)
      大黒 浩
    • Journal Title

      日本の眼科 79

      Pages: 5-9

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 網膜硝子体診療update「癌関連網膜症」2008

    • Author(s)
      大黒 浩
    • Journal Title

      臨床眼科増刊号 62

      Pages: 392-397

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Physiological and clinical aspect of the neuroretinal circuit (6) : Implications of neuroimaging technique with regard to the phy-siological and pathological states of the neuroretinal circuit.2008

    • Author(s)
      Hashimoto M
    • Journal Title

      Neuro-ophthalmol Jpn 25

      Pages: 105-110

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A case of superior segmental optic hypoplasia accompanied by glaucomatous optic neuropathy.2008

    • Author(s)
      Ohguro I
    • Journal Title

      Clinical Ophthalmology 2

      Pages: 475-478

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Prevention of Murine Experimental Corneal Trauma by Epigenetic Events Regulating Claudin 6 and Claudin 9.2008

    • Author(s)
      Nishikiori N
    • Journal Title

      Jpn J Ophthalmol 52

      Pages: 195-203

    • NAID

      10024154041

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] An unusual case of progressive esotropia caused by high myopia.2008

    • Author(s)
      Ohba M
    • Journal Title

      Binocul Vis Strabismus Q 23

      Pages: 31-35

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A case of early Creutzfeldt-Jakob disease presenting with acutebilateral visual loss.2008

    • Author(s)
      Hashimoto M
    • Journal Title

      Jpn J Ophthalmol 52

      Pages: 236-237

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Analysis of sFas IL-6 levels in thyroid-associated ophthalmopathy. : Pre-or poststeroid pulse treatment.2008

    • Author(s)
      Maeda K
    • Journal Title

      Clinical Ophthalmology 2

      Pages: 609-612

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Experimental effect of retinoic acids on apoptosis during the development of diabetic retinopathy.2008

    • Author(s)
      Nishikiori N
    • Journal Title

      Clinical Ophthalmology 2

      Pages: 1-3

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Physiological and clinical aspects of the neuroretinal circuit (2): Diseases of retinal photoreceptor cells.2007

    • Author(s)
      Ohguro H
    • Journal Title

      Neuro-ophthalmol Jpn 24

      Pages: 87-96

    • NAID

      10019572346

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Physiological and clinical aspects of the neuroretinal circuit (3): Signal transduction of the 2nd and 3rd retinal neurons.2007

    • Author(s)
      Ohguro H
    • Journal Title

      Neuro-ophthalmol Jpn 24

      Pages: 239-243

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Physiological and clinical aspects of the neuroretinal circuit (4): Disease of 2nd and 3rd retinal neurons.2007

    • Author(s)
      Ohguro H
    • Journal Title

      Neuro-ophthalmol Jpn 24

      Pages: 353-360

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] Impairment of rhodopsin phosphorylation and dephosphorylation cause retinal degeneration in P23H and S334ter rat models.2008

    • Author(s)
      Ohguro H
    • Organizer
      World Ophthalmology Congress
    • Place of Presentation
      Hong Kong Convention&Exhibition Center, Hong Kong, China.
    • Related Report
      2008 Annual Research Report
  • [Presentation] Effects of anti-glaucoma drops on matrix metalloprotei nase (MMP) and tissue inhibitor metalloproteinase (TIMP) balance in conjunctival and subconjunctival tissue.2007

    • Author(s)
      Ohguro H
    • Organizer
      Asia-ARVO meeting on research in vision and ophthalmology
    • Place of Presentation
      Suntec Singapore International Convention & Exbition Center, Singapore
    • Related Report
      2007 Annual Research Report
  • [Book] 特集「傍腫瘍性神経症候群:診断と治療の進歩」 I.障害部位・病態による臨床病型. 5.傍腫瘍性網膜症2008

    • Author(s)
      大黒 浩
    • Publisher
      日本内科学会雑誌
    • Related Report
      2008 Annual Research Report
  • [Book] 疲れ目、目の下のくまにカシスがベリーグッド2007

    • Author(s)
      大黒 浩
    • Total Pages
      48
    • Publisher
      ハート出版
    • Related Report
      2007 Annual Research Report

URL: 

Published: 2007-04-01   Modified: 2016-04-21  

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