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Mechanism of mitochondrial dynamics and its physiological relevance

Research Project

Project/Area Number 17H03667
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Biophysics
Research InstitutionFukuoka University (2019)
Kyushu University (2017-2018)

Principal Investigator

Koshiba Takumi  福岡大学, 理学部, 教授 (70403970)

Co-Investigator(Kenkyū-buntansha) 渡邊 利雄  奈良女子大学, 自然科学系, 教授 (60201208)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2019: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2018: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2017: ¥8,320,000 (Direct Cost: ¥6,400,000、Indirect Cost: ¥1,920,000)
Keywordsミトコンドリア / 分子基盤解析 / 高次機能 / 自然免疫 / RNAウイルス / プロヒビチン / X線結晶構造解析 / ダイナミクス / 抗ウイルス自然免疫 / 細胞内シグナル伝達
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. In some cells, fusion of numerous mitochondria into a well-organized reticulum is thought to enable transmission of mitochondrial membrane potential, thereby facilitating ATP generation to active regions of the cells. However, the reality of the mitochondrial dynamics in their functional significance is still poorly understood. In this project, we are trying to figure out the relationship between mitochondrial dynamics and its physiological relevancy, especially for innate immune response against RNA viruses. To address this issue, we use a wide range of approaches, including cell biology, biochemistry, and biophysics.

Academic Significance and Societal Importance of the Research Achievements

本研究では、哺乳動物におけるミトコンドリア・ダイナミクスの生理的な重要性と、その仕組みに関して分子レベルで明らかにした課題である。具体的に達成された事項として、ミトコンドリア・ダイナミクスに関わる新規な分子群を明らかにし、それらを介した抗ウイルス免疫への作用機序も明らかにした。一般に、ミトコンドリア・ダイナミクスの破綻は、神経変性疾患の発症や目の異常以外にも、糖尿病やガンの発病などとも深く関係し、私たちの健康に多大な影響を及ぼすことが知られている。今回の研究成果は、このような疾患や病態の仕組みを理解する上で学術的な知見を提供することに繋がると思われる。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (25 results)

All 2020 2019 2018 2017 Other

All Journal Article (11 results) (of which Peer Reviewed: 8 results,  Open Access: 8 results) Presentation (9 results) (of which Int'l Joint Research: 3 results,  Invited: 9 results) Remarks (5 results)

  • [Journal Article] The microRNAs miR-302b and miR-372 regulate mitochondrial metabolism via the SLC25A12 transporter, which controls MAVS-mediated antiviral innate immunity.2020

    • Author(s)
      Yasukawa K, Kinoshita D, Yaku K, Nakagawa T, Koshiba T.
    • Journal Title

      J Biol Chem.

      Volume: 295(2) Issue: 2 Pages: 444-457

    • DOI

      10.1074/jbc.ra119.010511

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Structural Basis of Mitochondrial Scaffolds by Prohibitin Complexes: Insight into a Role of the Coiled-Coil Region2019

    • Author(s)
      Yoshinaka Takahiro、Kosako Hidetaka、Yoshizumi Takuma、Furukawa Ryo、Hirano Yu、Kuge Osamu、Tamada Taro、Koshiba Takumi
    • Journal Title

      iScience

      Volume: 19 Pages: 1065-1078

    • DOI

      10.1016/j.isci.2019.08.056

    • NAID

      120006959760

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Influenza A virus M2 protein triggers mitochondrial DNA-mediated antiviral immune responses2019

    • Author(s)
      Moriyama Miyu、Koshiba Takumi、Ichinohe Takeshi
    • Journal Title

      Nature Communications

      Volume: 10 Issue: 1 Pages: 4624-4624

    • DOI

      10.1038/s41467-019-12632-5

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Mass spectrometry-based methods for analysing the mitochondrial interactome in mammalian cells2019

    • Author(s)
      Koshiba Takumi、Kosako Hidetaka
    • Journal Title

      The Journal of Biochemistry

      Volume: 167 Issue: 3 Pages: 225-231

    • DOI

      10.1093/jb/mvz090

    • NAID

      120006959753

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] ミトコンドリアと抗ウイルス自然免疫シグナル2019

    • Author(s)
      小柴 琢己
    • Journal Title

      実験医学

      Volume: 37 Pages: 145-151

    • Related Report
      2019 Annual Research Report
  • [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 Annual Research 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 Annual Research 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 Annual Research Report
  • [Presentation] Structural basis of mitochondrial scaffolds by prohibitin complexes2019

    • Author(s)
      Takumi Koshiba
    • Organizer
      The 16th Conference of Asian Society for Mitochondrial Research and Medicine
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Structure-function analysis of the prohibitin complexes in mitochondria2019

    • Author(s)
      小柴 琢己
    • Organizer
      第71回 日本細胞生物学会大会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] ミトコンドリアにおける自然免疫応答ゾーンの解析2019

    • Author(s)
      小柴 琢己
    • Organizer
      第92回 日本生化学会大会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] ミトコンドリアを介した抗ウイルス自然免疫2019

    • Author(s)
      小柴 琢己
    • Organizer
      第42回 日本分子生物学会年会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [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 Annual Research 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 Annual Research 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 Annual Research Report
    • Invited
  • [Remarks] 研究室ホームページ

    • URL

      http://www.sci.fukuoka-u.ac.jp/lab/chem/koshiba/

    • Related Report
      2019 Annual Research Report
  • [Remarks] 福岡大学研究者情報

    • URL

      https://resweb2.jhk.adm.fukuoka-u.ac.jp/FukuokaUnivHtml/info/7556/R108J.html

    • Related Report
      2019 Annual Research Report
  • [Remarks] http://www.biology.kyushu-u.ac.jp/~koshiba/

    • Related Report
      2018 Annual Research Report
  • [Remarks] 九州大学研究者情報

    • URL

      http://hyoka.ofc.kyushu-u.ac.jp/search/details/K002718/

    • Related Report
      2017 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 Annual Research Report

URL: 

Published: 2017-04-28   Modified: 2021-02-19  

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