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Structural modifications of mitochondrial dynamics; antiviral innate immunity

Research Project

Project/Area Number 17K19561
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Research Field Pathology, Infection/Immunology, and related fields
Research InstitutionKyushu University

Principal Investigator

Koshiba Takumi  九州大学, 理学研究院, 准教授 (70403970)

Research Collaborator Kosako Hidetaka  
Nakada Kazuto  
Project Period (FY) 2017-06-30 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2018: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2017: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Keywordsミトコンドリア / 抗ウイルス自然免疫 / 構造改変 / 形態形成 / タンパク質 / 構造特性 / 改変 / ウイルス / 自然免疫
Outline of Final Research Achievements

Mitochondria are dynamic organelles that undergo cycles of homotypic fusion and fission events, which are believed to play an important role in controlling organelle number, subcellular distribution, morphology, and ATP production. Recent studies in model animals demonstrated that genetic ablation of individual components involved in mitochondrial dynamics impairs organ function and its whole body metabolism. Although the importance of mitochondrial dynamics is well documented, the molecular mechanism and its pathogenesis remain unclear. Here we report that mitochondrial dynamics involved in antiviral innate immunity has been revealed.

Academic Significance and Societal Importance of the Research Achievements

ミトコンドリアは、古くからエネルギー産生の場や、アポトーシス制御に関わるプラットフォームとしての詳細な機能解析が行われてきた。実際に、これらミトコンドリアの機能発現は、自身の動的な構造特性が大きく関与していると思われる。本研究では、これまでほとんど研究されていない「ミトコンドリアの構造的特性」の本質に迫り、その特性が機能面に及ぶ仕組みを解明した。本研究により、生体内におけるミトコンドリアの構造的特性の一端が解明されたことで、生命科学分野における新たな学術領域の確立に繋がることはもちろん、創薬や臨床医療の周辺領域への波及効果は大きいものと考える。

Report

(3 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • Research Products

    (14 results)

All 2018 2017 Other

All Journal Article (6 results) (of which Peer Reviewed: 4 results,  Open Access: 4 results) Presentation (5 results) (of which Int'l Joint Research: 2 results,  Invited: 5 results) Remarks (3 results)

  • [Journal Article] Two Conserved Amino Acids within the NSs of Severe Fever with Thrombocytopenia Syndrome Phlebovirus Are Essential for Anti-interferon Activity2018

    • Author(s)
      Moriyama Miyu、Igarashi Manabu、Koshiba Takumi、Irie Takashi、Takada Ayato、Ichinohe Takeshi
    • Journal Title

      Journal of Virology

      Volume: 92 Issue: 19

    • DOI

      10.1128/jvi.00706-18

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Herpes Simplex Virus 1 VP22 Inhibits AIM2-Dependent Inflammasome Activation to Enable Efficient Viral Replication.2018

    • Author(s)
      Maruzuru Y, Ichinohe T, Sato R, Miyake K, Okano T, Suzuki T, Koshiba T, Koyanagi N, Tsuda S, Watanabe M, Arii J, Kato A, Kawaguchi Y.
    • Journal Title

      Cell Host Microbe.

      Volume: 23 Issue: 2 Pages: 254-265

    • DOI

      10.1016/j.chom.2017.12.014

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] ミトコンドリアを介した自然免疫応答2018

    • Author(s)
      小柴琢己
    • Journal Title

      医学のあゆみ

      Volume: 265 Pages: 1101-1107

    • Related Report
      2018 Annual Research Report
  • [Journal Article] RLR-mediated antiviral innate immunity requires oxidative phosphorylation activity2017

    • Author(s)
      Yoshizumi T, Imamura H, Taku T, Kuroki T, Kawaguchi A, Ishikawa K, Nakada K, Koshiba T
    • Journal Title

      Scientific Reports

      Volume: 7 Issue: 1 Pages: 5379-5379

    • DOI

      10.1038/s41598-017-05808-w

    • NAID

      120007128833

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Evaluation of Mitochondrial Respiratory Activity Using a FRET-based Indicator for Intracellular ATP2017

    • Author(s)
      小柴琢己、今村博臣
    • Journal Title

      Seibutsu Butsuri

      Volume: 57 Issue: 5 Pages: 268-270

    • DOI

      10.2142/biophys.57.268

    • NAID

      130006100204

    • ISSN
      0582-4052, 1347-4219
    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] インフルエンザウイルス感染に伴うミトコンドリア形態への影響2017

    • Author(s)
      小柴琢己
    • Journal Title

      感染・炎症・免疫

      Volume: 47 Pages: 42-44

    • Related Report
      2017 Research-status Report
  • [Presentation] Mitochondrial-mediated antiviral innate immunity in mammals2018

    • Author(s)
      Takumi Koshiba
    • Organizer
      The 15th Conference of Asian Society for Mitochondrial Research and Medicine
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Mitochondrial-mediated antiviral innate immunity in mammals2018

    • Author(s)
      Takumi Koshiba
    • Organizer
      The 3rd Asian Invertebrate Immunity Symposium 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] ミトコンドリアタンパク質による膜構造への影響2017

    • Author(s)
      小柴琢己
    • Organizer
      生命科学系学会合同年次大会(ConBio2017)
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] ミトコンドリアの呼吸活性と抗ウイルス自然免疫2017

    • Author(s)
      小柴琢己
    • Organizer
      第69回 日本細胞生物学会大会
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] ミトコンドリア・ダイナミクスの生理機能解析2017

    • Author(s)
      小柴琢己
    • Organizer
      平成29年度「AMED難治性疾患実用化研究事業・ミトコンドリアシンポジウム
    • Related Report
      2017 Research-status Report
    • Invited
  • [Remarks] http://www.biology.kyushu-u.ac.jp/~koshiba/

    • Related Report
      2018 Annual Research Report
  • [Remarks] 研究室ホームページ

    • URL

      http://www.biology.kyushu-u.ac.jp/~koshiba/

    • Related Report
      2017 Research-status Report
  • [Remarks] 九州大学研究者情報

    • URL

      http://hyoka.ofc.kyushu-u.ac.jp/search/faculty2_j.cgi?ID=K002718

    • Related Report
      2017 Research-status Report

URL: 

Published: 2017-07-21   Modified: 2020-03-30  

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