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Molecular mechanism of selective autophagy against bacterial pathogens

Research Project

Project/Area Number 26462776
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Morphological basic dentistry
Research InstitutionKyoto University

Principal Investigator

Nozawa Takashi  京都大学, 医学研究科, 助教 (10598858)

Co-Investigator(Kenkyū-buntansha) 相川 知宏  京都大学, 医学研究科, 助教 (70725499)
Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywordsオートファジー / Rab GTPase / オートファジーアダプター / RAB GTPase / A群レンサ球菌 / Rabタンパク質
Outline of Final Research Achievements

We performed comprehensive analysis of Rab GTPase family proteins in autophagy against bacterial pathogens. We identified Rab35 as a novel autophagy regulator. Rab35 binds to NDP52 and regulates the recruitment of NDP52 to invading bacteria. We also found that NLRP4, intracellular pattern recognition receptor, is recruited to invaded bacteria and regulates Rho signaling via RhoGDI to promote the fusion between recycling endosomes and autophagosomes. The fusion step is required for the extension of autophagosome membranes and form complete autophagosomes. Taken together, we revealed how host cells recognize pathogens and induce selective autophagy.

Report

(4 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (14 results)

All 2017 2016 2015 2014 Other

All Journal Article (7 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 7 results,  Open Access: 5 results,  Acknowledgement Compliant: 6 results) Presentation (3 results) (of which Invited: 1 results) Book (1 results) Remarks (3 results)

  • [Journal Article] YvqE and CovRS of Group A Streptococcus Play a Pivotal Role in Viability and Phenotypic Adaptations to Multiple Environmental Stresses2017

    • Author(s)
      Roobthaisong A, Aikawa C,Nozawa T, Maruyama F, Nakagawa I
    • Journal Title

      Plos One

      Volume: 12 Issue: 1 Pages: e0170612-e0170612

    • DOI

      10.1371/journal.pone.0170612

    • NAID

      120005980868

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Bcl-xL Affects Group A Streptococcus-Induced Autophagy Directly, by Inhibiting Fusion between Autophagosomes and Lysosomes, and Indirectly, by Inhibiting Bacterial Internalization via Interaction with Beclin 1-UVRAG2017

    • Author(s)
      Nakajima S, Aikawa C, Nozawa, T, Minowa-Nozawa A, Toh H, Nakagawa I
    • Journal Title

      PLos One

      Volume: 12 Issue: 1 Pages: e0170138-e0170138

    • DOI

      10.1371/journal.pone.0170138

    • NAID

      120005971033

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] The STX6-VTI1B-VAMP3 complex facilitates xenophagy by regulating the fusion between recycling endosomes and autophagosomes2017

    • Author(s)
      T. Nozawa, A. Minowa-Nozawa, C. Aikawa, I. Nakagawa.
    • Journal Title

      Autophagy

      Volume: 13 Issue: 1 Pages: 57-69

    • DOI

      10.1080/15548627.2016.1241924

    • NAID

      120006337978

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] A locus encoding variable defence systems against invading DNA identified in Streptococcus suis.2017

    • Author(s)
      Okura M, Nozawa T, Watanabe T, Murase K, Nakagawa I, Takamatsu D, Osaki M, Sekizaki T, Gottschalk M, Hamada S, Maruyama F.
    • Journal Title

      Genome Biol Evol

      Volume: 9 Issue: 4 Pages: 1000-1012

    • DOI

      10.1093/gbe/evx062

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] DNA-based culture-independent analysis detects the presence of group a streptococcus in throat samples from healthy adults in Japan.2016

    • Author(s)
      T. Kulkarni, C. Aikawa, T. Nozawa, K. Murase, *F. Maruyama, I. Nakagawa.
    • Journal Title

      BMC Microbiol.

      Volume: 16 Pages: 237-237

    • NAID

      120006223635

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Golgi-Resident GTPase Rab30 Promotes the Biogenesis of Pathogen-Containing Autophagosomes.2016

    • Author(s)
      Oda S, Nozawa T, Nozawa-Minowa A, Tanaka M, Aikawa C, Harada H, Nakagawa I.
    • Journal Title

      PLoS One

      Volume: 11 Issue: 1 Pages: e0147061-e0147061

    • DOI

      10.1371/journal.pone.0147061

    • NAID

      120005743648

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Rab17-mediated recycling endosomes contribute to autophagosome formation in response to Group A Streptococcus invasion.2014

    • Author(s)
      B. Haobam, T. Nozawa, A. Minowa-Nozawa, M. Tanaka, S. Oda, T. Watanabe, C. Aikawa, F. Maruyama, I. Nakagawa.
    • Journal Title

      Cellular Microbiology

      Volume: 16 Issue: 12 Pages: 1806-1821

    • DOI

      10.1111/cmi.12329

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] ゼノファジーにおけるオートファジーアダプタータンパク質の時空間制御メカニズム2017

    • Author(s)
      野澤孝志、野澤敦子、中川一路
    • Organizer
      第90回日本細菌学会総会
    • Place of Presentation
      仙台国際センター
    • Year and Date
      2017-03-19
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] A Disrupted PI4P-Enriched TGN Induced by Group A Streptococcus Contributes to Xenophagy2016

    • Author(s)
      野澤孝志、野澤敦子、中川一路
    • Organizer
      第89回日本細菌学会総会
    • Place of Presentation
      大阪
    • Year and Date
      2016-03-23
    • Related Report
      2015 Research-status Report
  • [Presentation] Rab17-mediated recycling endosomes contribute to antibacterial autophagosome formation2015

    • Author(s)
      野澤孝志
    • Organizer
      第88回 日本細菌学会総会
    • Place of Presentation
      岐阜
    • Year and Date
      2015-03-26 – 2015-03-29
    • Related Report
      2014 Research-status Report
  • [Book] Autophagy, Infection, and the Immune Response2014

    • Author(s)
      T. Nozawa, I. Nakagawa
    • Total Pages
      352
    • Publisher
      Wiley
    • Related Report
      2014 Research-status Report
  • [Remarks] 京都大学 大学院医学研究科 微生物感染症学分野

    • URL

      http://www.bac.med.kyoto-u.ac.jp/

    • Related Report
      2016 Annual Research Report
  • [Remarks] 京都大学大学院医学研究科微生物感染症学分野

    • URL

      http://www.bac.med.kyoto-u.ac.jp/

    • Related Report
      2014 Research-status Report
  • [Remarks] 東京医科歯科大学 テニュアトラックプログラム 野澤孝志

    • URL

      http://www.tmd.ac.jp/cmn/tenu/program/no1_nozawa.html

    • Related Report
      2014 Research-status Report

URL: 

Published: 2014-04-04   Modified: 2018-03-22  

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