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Analysis of the leukocyte cytoskeletal dynamics that are essential or the host defense mechanisms against infections

Research Project

Project/Area Number 19590450
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Bacteriology (including Mycology)
Research InstitutionEhime University

Principal Investigator

SHINOMIYA Hiroto  Ehime University, 大学院・医学系研究科, 准教授 (80162618)

Co-Investigator(Kenkyū-buntansha) KIRIKAE Teruo  国立国際医療センター, 感染制御研究部, 部長 (50192563)
ASANO Yoshihiro  愛媛大学, 大学院・医学系研究科, 教授 (70114353)
Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2008: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2007: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords感染防御 / マクロファージ / 細胞接着 / アクチン細胞骨格 / p65 / L-plastin / WASP / VAV / NADPH オキシダーゼ / p65-scaffold / action-related protein
Research Abstract

申請者が同定したp65/L-plastin は, 白血球に特異的に発現され,アクチン細胞骨格の再構築(p65-actin-scaffold) に関与している。p65-actin-scaffold は菌体刺激によって随時形成され, これを中心に形成される高次タンパク質集合体が, 感染防御的細胞応答の基盤として機能すると想定している。p65/L-plastin とともに細胞骨格のダイナミクスに関与するタンパク質,およびp65-actin-scaffold と高次タンパク質集合するタンパク質としてNADPH オキシダーゼ p47^<phox> などについて, 特異抗体を用いてp65-actin-scaffold との共存関係を調べた。また, マクロファージ内でのそれらの局在変化と貪食・細胞接着や殺菌活性の増強との関連を評価した。ルミノール結合ビーズを用いて, 貪食依存性の活性酸素酸性定量法を確立し, 細胞骨格の再構成が活性酸素産生において重要であることを明らかにした。p65/L-plastin, WASP, VAV に関して, それぞれの欠損は貪食・細胞接着依存性の活性酸素産生の障害をきたすことを考え合わせ, p65-actin-scaffold を中心とする細胞骨格系のダイナミクスが, 白血球の感染防御活性の発現において重要な役割を担うと考えられた。

Report

(3 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • Research Products

    (26 results)

All 2009 2008 2007

All Journal Article (15 results) (of which Peer Reviewed: 15 results) Presentation (11 results)

  • [Journal Article] Origins and unconventional behavior of neutrophils in developing zebrafish2008

    • Author(s)
      Le Guyader D, Redd MJ, Colucci-Guyon E, Murayama, Shinomiya H, and Herbomel P
    • Journal Title

      Blood 111

      Pages: 132-141

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Attenuated Listeria infection activates natural killer cell cytotoxicity to regress melanoma growth in vivo2008

    • Author(s)
      Shen H, Kanoh M, Maruyama S, Matsumoto A, Zhang W and Asano Y
    • Journal Title

      Microbiol Immununol 52

      Pages: 107-117

    • NAID

      10025691343

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] KHM-1, a novel plasmidmediated metallo-beta-lactamase from a Citrobacter freundii clinical isolate2008

    • Author(s)
      Sekiguchi J, Morita K, Kitao T, Watanabe N, Okazaki M, Miyoshi-Akiyama T, Kanamori M, Kirikae T
    • Journal Title

      Antimicrob Agents Chemother 52

      Pages: 4194-4197

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Origins and unconventional behavior of neutrophils in developing zebrafish.2008

    • Author(s)
      Le Guyader D, et al.
    • Journal Title

      Blood 111

      Pages: 132-141

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Attenuated Listeria infection activates natural killer cell cytotoxicity to regress melanoma growth in vivo.2008

    • Author(s)
      Shen H, et al.
    • Journal Title

      Microbiol Immunol 52

      Pages: 107-117

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] KHM-1, a novel plasmid-mediated metallo-beta-lactamase from a Citrobacter freundii clinical isolate.2008

    • Author(s)
      Sekiguchi J, et al.
    • Journal Title

      Antimicrob Agents Chemother 52

      Pages: 4194-4197

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Conformational analysis of the leukocyte-specific EF-hand protein p65/L-plastin by X-ray scattering in solution2007

    • Author(s)
      Shinomiya H, Shinjo M, Fengzhi L, Asano Y, Kihara H
    • Journal Title

      Biophys Chem 131

      Pages: 36-42

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Dual role of the actin cytoskeleton in host defenses and in the establishment of bacterial infections2007

    • Author(s)
      Shinomiya H
    • Journal Title

      Nippon Saikingaku Zasshi 62

      Pages: 279-293

    • NAID

      10019493500

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Development and evaluation of a line probe assay for rapid identification of pncA mutations in pyrazinamide-resistant Mycobacterium tuberculosis strains2007

    • Author(s)
      Sekiguchi J, Nakamura T, Miyoshi-Akiyama T, Kirikae F, Kobayashi I, Augustynowicz-Kopec E, Kirikae T
    • Journal Title

      J Clin Microbiol 45

      Pages: 2802-2807

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Detection of multidrug resistance in Mycobacterium tuberculosis2007

    • Author(s)
      Sekiguchi J, Miyoshi-Akiyama T, Augustynowicz-Kope-E, Zwolska Z, Kirikae F, Toyota E, Kirikae T
    • Journal Title

      J Clin Microbiol 45

      Pages: 179-192

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Conformational analysis of the leukocyte-specific EF-hand p65/L-plastin by X-ray scattering in solution2007

    • Author(s)
      Shinomiya H, et. al.
    • Journal Title

      Biophys Chem 131

      Pages: 36-42

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Origins and unconventional behavior of neutrophils in developing zebrafish2007

    • Author(s)
      Le Guyader D, et. al.
    • Journal Title

      Blood 111

      Pages: 132-141

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 宿主防御と病原体感染の攻防の場としての細胞骨格系2007

    • Author(s)
      四宮 博人
    • Journal Title

      日本細菌学雑誌 62

      Pages: 279-293

    • NAID

      10019493500

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development and evaluation of a line probe assay for rapid identification of pncA mutations in pyrazinamide-resistant mycobacterium tuberculos is strains2007

    • Author(s)
      Sekiguchi J, et. al.
    • Journal Title

      J Clin Microbiol 25

      Pages: 2802-2807

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Detection of multidrug resistance in Mycobacterium tuberculosis2007

    • Author(s)
      Sekiguchi J, et. al.
    • Journal Title

      J Clin Microbiol 45

      Pages: 179-192

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] Pseudomonas aeruginosaの環境適応戦略と病原性との関連についての解析2009

    • Author(s)
      四宮博人, 野中里佐, 犬伏 歩, Nurul Huda Khan, 木暮一啓, 村瀬光春, 鈴木 聡, 浅野喜博
    • Organizer
      第81回日本細菌学会総会
    • Place of Presentation
      名古屋
    • Year and Date
      2009-03-12
    • Related Report
      2008 Annual Research Report 2008 Final Research Report
  • [Presentation] Structure-function analysis of p65/L-plastin that regulates macrophage activities through cytoskeletal remodeling2008

    • Author(s)
      Shinomiya H, Yumoto F, Kirikae T, Matsumoto A, Asano Y
    • Organizer
      第38回日本免疫学会総
    • Place of Presentation
      京都
    • Year and Date
      2008-12-03
    • Related Report
      2008 Final Research Report
  • [Presentation] Structure-function analysis of p65/L-plastin that regulates macrophage activities through cytoskeletal remodeling.2008

    • Author(s)
      Shinomiya H
    • Organizer
      第38回日本免疫学会総会
    • Place of Presentation
      京都
    • Year and Date
      2008-12-03
    • Related Report
      2008 Annual Research Report
  • [Presentation] 臨床分離緑膿菌と海洋分離緑膿菌の遺伝子型・性状・病原性の比較について2008

    • Author(s)
      四宮博人, 野中里佐, 木暮一啓, Nurul Huda Khan, 石井良和, 鈴木聡, 浅野喜博
    • Organizer
      第8回日本細菌学会総会
    • Place of Presentation
      京都
    • Year and Date
      2008-03-26
    • Related Report
      2008 Final Research Report
  • [Presentation] 臨床分離緑膿菌と海洋分離緑膿菌の遺伝子型・性状・病原性の比較について2008

    • Author(s)
      四宮 博人, 他
    • Organizer
      第81回日本細菌学会総会
    • Place of Presentation
      京都
    • Year and Date
      2008-03-26
    • Related Report
      2007 Annual Research Report
  • [Presentation] 自然免疫の基礎免疫学2007

    • Author(s)
      四宮博人
    • Organizer
      第21回肝類洞壁細胞研究会
    • Place of Presentation
      愛媛
    • Year and Date
      2007-12-22
    • Related Report
      2008 Final Research Report 2007 Annual Research Report
  • [Presentation] Structural and functional analyses of the leukocytespecific EF-hand protein, p65/L-plastin2007

    • Author(s)
      Shinomiya H, Yumoto F, Shinjo M, Kihara H, Matsumoto A, Asano Y
    • Organizer
      第37回日本細菌学会総会
    • Place of Presentation
      京都
    • Year and Date
      2007-11-21
    • Related Report
      2008 Final Research Report
  • [Presentation] リステリア感染マクロファージの細胞死誘導機構の解析2007

    • Author(s)
      松本哲, 丸山砂穂, 加納誠, 四宮博人, 浅野喜博
    • Organizer
      第37回日本細菌学会総会
    • Place of Presentation
      京都
    • Year and Date
      2007-11-21
    • Related Report
      2008 Final Research Report
  • [Presentation] Structural and functional analyses of the leukocyte-specific EF-hand protein,p65/L-plastin2007

    • Author(s)
      Shinomiya H, et. al.
    • Organizer
      第37回日本細菌学会総会
    • Place of Presentation
      東京
    • Year and Date
      2007-11-21
    • Related Report
      2007 Annual Research Report
  • [Presentation] リステリア菌感染マクロファージの細胞死誘導機構の解析2007

    • Author(s)
      松本 哲, 他
    • Organizer
      第37回日本細菌学会総会
    • Place of Presentation
      東京
    • Year and Date
      2007-11-21
    • Related Report
      2007 Annual Research Report
  • [Presentation] 細菌刺激による白血球細胞骨格再構成とその感染防御における意義2007

    • Author(s)
      四宮博人
    • Organizer
      第6回四国免疫フォーラム
    • Place of Presentation
      愛媛
    • Year and Date
      2007-07-14
    • Related Report
      2008 Final Research Report 2007 Annual Research Report

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

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