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自己免疫疾患におけるNF-κBを介したT細胞活性化機構の解析

Research Project

Project/Area Number 17689049
Research Category

Grant-in-Aid for Young Scientists (A)

Allocation TypeSingle-year Grants
Research Field Morphological basic dentistry
Research InstitutionThe University of Tokushima

Principal Investigator

石丸 直澄  The University of Tokushima, 大学院・ヘルスバイオサイエンス研究部, 准教授 (60314879)

Project Period (FY) 2005 – 2007
Project Status Completed (Fiscal Year 2007)
Budget Amount *help
¥27,040,000 (Direct Cost: ¥20,800,000、Indirect Cost: ¥6,240,000)
Fiscal Year 2007: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
Fiscal Year 2006: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
Fiscal Year 2005: ¥11,960,000 (Direct Cost: ¥9,200,000、Indirect Cost: ¥2,760,000)
KeywordsV-多様体 / ゲージ理論 / 交叉理論 / 指数定理 / 同境圏 / グラフ多様体 / ホモロジー球面 / bounding genus / NFLκB / T細胞 / 自己免疫疾患 / サイトカイン / 調節性T細胞 / 活性化 / ナイーブ / メモリー / NF-κB
Research Abstract

自己免疫疾患の発症機序の一つとしてT細胞の恒常性機能の逸脱による末梢のT細胞トレランスの破綻が病態を大きく左右することが知られている。T細胞の活性化に転写因子であるNF-_kBが中心的な役割を果たすことが知られているが、自己免疫疾患との関わりは不明である。本研究では各種自己免疫疾患モデル、NF-_kB各サブセットの遺伝子欠損マウスを中心にして末梢T細胞の活性化段階におけるNF-_kB各サブセットの機能的役割を明らかにし、さらにヒト患者検体を用いた詳細な検討により、自己免疫疾患発症におけるNF-_kBを介した分子機序を解明し、病因論に基づいた臨床応用の可能性を探ることを目的とする。18年度に自己免疫疾患モデル、NF-_kB遺伝子欠損マウスを用いNon-classical NF-_kB経路(NF-_kB2/Re1B)がT細胞の活性化に重要な役割を果たしていることを明らかにし、NF-_kBk2分子直接NF-_kB1分子に結合することでT細胞の活性化を抑制することを見いだした(Nat Immuno1, 7 2006)。その結果を踏まえNF-_kB2分子がいかにclassical NF-kB_k経路を調節しているかを分子間の結合様式など詳細な機序を解明し、さらにNF-_kB2を調節する因子であるシグナル分子(PKC, PKB, RANKL, Bc1-10, Foxj1, NEMO, NIK, IKK, I_kBなど)を中心に細胞内での動態を検討した結果、NIKがナイーブT細胞の活性化に重要な役割を果たしていることが判明した。また、シェーグレン症候群や炎症性疾患のモデル動物を用いて、NF-_kBを介した病態形成メカニズムが明らかとなり、今後のNF-kBの活性化機構に基づいた臨床応用の可能性が示された。

Report

(3 results)
  • 2007 Annual Research Report
  • 2006 Annual Research Report
  • 2005 Annual Research Report
  • Research Products

    (28 results)

All 2008 2007 2006 2005 Other

All Journal Article (15 results) (of which Peer Reviewed: 5 results) Presentation (10 results) Book (2 results) Remarks (1 results)

  • [Journal Article] Atelocollagen-mediated local and systemic apolications of myostatin-targeting siRNA increase skeletal muscle mass.2008

    • Author(s)
      Kinouchi N, et. al.
    • Journal Title

      Gene Ther. 6(印刷中)

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effective treatment with oral administration of rebamipide in a mousemodel of Sjogren's syndrome.2008

    • Author(s)
      Kohashi M, et. al.
    • Journal Title

      Arthritis Rheum. 58

      Pages: 389-400

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Possible involvement of stem cell factor and endothelin-l in the emergence of pigmented squamous cell carcinoma in oral mucosa.2007

    • Author(s)
      Satomura K, et. al.
    • Journal Title

      J.Oral Pathol.Med. 36

      Pages: 621-624

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Visualizing the dynamics of p21(Waf/Cip1)cyclin-dependent kinaseinhibitor.2007

    • Author(s)
      Ohtani N, et. al.
    • Journal Title

      Proc.Natl.Acad.Sci.U.S.A. 104

      Pages: 15034-15039

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Crosstalk between RNAKL and Fas signaling in dendritic cells controlsimmune tolerance.2007

    • Author(s)
      Izawa T, et. al.
    • Journal Title

      Blood 110

      Pages: 242-250

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Crosstalk between RANKL and Fas signaling in denritic cells controls immune tolerance2007

    • Author(s)
      Takashi Izawa
    • Journal Title

      Blood Mar 19 on line(In press)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Regulation of naive T cell function by the NF-κB2 pathway2006

    • Author(s)
      Naozumi Ishimaru
    • Journal Title

      Nature Immunology 7

      Pages: 763-772

    • Related Report
      2006 Annual Research Report
  • [Journal Article] A novel apoptosis cascade mediated by lysosomal lactoferrin and its participation in hepatocyte apoptosis induced by D-galactosamine2006

    • Author(s)
      Nobuhiko Katunuma
    • Journal Title

      FEBS Letter 580

      Pages: 3699-3705

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Cepharanthin, a biscoclaurine alkaloid, prevents destruction of acinar tissues in murine Sjogren's syndrome2006

    • Author(s)
      Masayuki Azuma
    • Journal Title

      Journal of Rheumatology 5

      Pages: 912-920

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Ubiqitin Ligase Cbl-b Downregulates Bone Formation Through Suppression of IGF-I Signaling in Osteoblasts During Denervation2006

    • Author(s)
      Naoto Suzue
    • Journal Title

      Journal of Bone Mineral Research 21

      Pages: 772-734

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Novel Role for RbAp48 in Tissue-Specific, Estrogen Deficiency-Dependent Apoptosis in the Exocrine Glands2006

    • Author(s)
      Naozumi Ishimaru
    • Journal Title

      Molecular Cellular Biology 26

      Pages: 2924-2935

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Novel Role for RbAp48 in Tissue-Specific, Estrogen Deficiency-Dependent Apoptosis in the Exocrine Glands2006

    • Author(s)
      Naozumi Ishimaru
    • Journal Title

      Molecular and Cellular Biology 26(In press)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Crucial Roles of NF-κB for T Cell Activation2006

    • Author(s)
      Naozumi Ishimaru
    • Journal Title

      Journal of Oral Biosciences 48

      Pages: 12-17

    • NAID

      10017280299

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Catechin derivatives : specific inhibitor for caspase-3, 7, and 2, and the prevention of apoptosis at the cell and animal levels2006

    • Author(s)
      Nobuhiko Katunuma
    • Journal Title

      FEBS Letter 580

      Pages: 741-746

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Analysis of in vivo role of alpha-fodrin autoantigen in primary Sjogren's syndrome2005

    • Author(s)
      Katsushi Miyazaki
    • Journal Title

      American Journal of Pathology 167

      Pages: 1051-1059

    • Related Report
      2005 Annual Research Report
  • [Presentation] 自己免疫疾患におけるT細胞の制御機構2008

    • Author(s)
      石丸真澄
    • Organizer
      口腔医科学フロンティア
    • Place of Presentation
      東京
    • Year and Date
      2008-02-09
    • Related Report
      2007 Annual Research Report
  • [Presentation] IFN-y-producing epithelial cells links autoimmune exocrinopathy resembling SS in RbAp48 TG mice2007

    • Author(s)
      Hayashi Y, et. al.
    • Organizer
      ACR/ARHP 71th Annual Scientific Meeting
    • Place of Presentation
      Boston
    • Year and Date
      2007-12-09
    • Related Report
      2007 Annual Research Report
  • [Presentation] Immunoregulatory Role of RANKL-stimulated Dendritic Cells on Autoimmune Arthritis in MRL/lpr Mice.2007

    • Author(s)
      Izawa T, et. al.
    • Organizer
      ACR/ARHP 71th Annual Scientific Meeting
    • Place of Presentation
      Boston
    • Year and Date
      2007-12-09
    • Related Report
      2007 Annual Research Report
  • [Presentation] 自己免疫疾患におけるNF-_kBシグナルを介したT細胞の制御機構2007

    • Author(s)
      石丸直澄
    • Organizer
      日本病理学会秋期総会A演説
    • Place of Presentation
      東京
    • Year and Date
      2007-12-06
    • Related Report
      2007 Annual Research Report
  • [Presentation] Crosstalk between RANKL and Fas signaling in denadritic cells controls immune tolerance.2007

    • Author(s)
      Izawa T, et. al.
    • Organizer
      日本免疫学会総会
    • Place of Presentation
      東京
    • Year and Date
      2007-11-21
    • Related Report
      2007 Annual Research Report
  • [Presentation] NF-kB1欠損マウスの加齢に伴うT細胞機能の解析2007

    • Author(s)
      山田安希子ら
    • Organizer
      日本免疫学会総会
    • Place of Presentation
      東京
    • Year and Date
      2007-11-21
    • Related Report
      2007 Annual Research Report
  • [Presentation] IFN-y-producing epithelial cells links autoinmiune exocrinopathy resembling SS in RbAp48 TG mice2007

    • Author(s)
      石丸直澄ら
    • Organizer
      日本免疫学会総会
    • Place of Presentation
      東京
    • Year and Date
      2007-11-21
    • Related Report
      2007 Annual Research Report
  • [Presentation] シェーグレン症候群モデルマウスへのTCDD投与による影響2007

    • Author(s)
      小橋真之ら
    • Organizer
      日本免疫学会総会
    • Place of Presentation
      東京
    • Year and Date
      2007-11-20
    • Related Report
      2007 Annual Research Report
  • [Presentation] 自己免疫疾患モデルにおけるNF・_kBを介したT細胞活性化機構の解析2007

    • Author(s)
      奥野美穂ら
    • Organizer
      日本免疫学会総会
    • Place of Presentation
      東京
    • Year and Date
      2007-11-20
    • Related Report
      2007 Annual Research Report
  • [Presentation] 唾液腺アポトーシスと自己免疫2007

    • Author(s)
      石丸直澄
    • Organizer
      日本口腔病理学会総会シンポジウム
    • Place of Presentation
      岐阜
    • Year and Date
      2007-08-11
    • Related Report
      2007 Annual Research Report
  • [Book] 臨床免疫・アレルギー科2007

    • Author(s)
      石丸直澄ら
    • Publisher
      科学評論社
    • Related Report
      2007 Annual Research Report
  • [Book] Annual Review 糖尿病・代謝・内分泌2006

    • Author(s)
      金澤康徳
    • Total Pages
      291
    • Publisher
      中外医学社
    • Related Report
      2005 Annual Research Report
  • [Remarks]

    • URL

      http://www.dent.tokushima-u.ac.jp/byouri/page1.html

    • Related Report
      2007 Annual Research Report

URL: 

Published: 2005-04-01   Modified: 2016-04-21  

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