• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Regulation of gut microbiome by extracellular phospholipases

Research Project

Project/Area Number 19K22483
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 47:Pharmaceutical sciences and related fields
Research InstitutionThe University of Tokyo

Principal Investigator

Murakami Makoto  東京大学, 大学院医学系研究科(医学部), 教授 (60276607)

Project Period (FY) 2019-06-28 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2020: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2019: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywords脂質 / 酵素 / 腸内細菌叢 / アレルギー / メタボローム / 生体分子 / 細胞・組織 / がん
Outline of Research at the Start

本研究では、申請者が長年研究に取り組んできた脂質代謝酵素ホスホリパーゼA2 (PLA2) を基軸に、脂質代謝の視点から腸内細菌叢の新規調節機構を解明する。すなわち、腸管限局型sPLA2 (IIA, X) の欠損マウスを用い、メタゲノム、トランスクリプトーム、メタボローム解析を駆使して腸内細菌叢の変容ならびにそれに伴う代謝物の変化を精査するとともに、その癌・アレルギー・肥満等の遠隔臓器の表現型との関連性を明らかにする。

Outline of Final Research Achievements

Besides modifying inflammation by mobilizing lipid mediators, secreted phospholipase A2 (sPLA2) prevents bacterial infection by degrading bacterial membranes. In this study, we found that despite the restricted intestinal expression of sPLA2-IIA and -X, their genetic deletions altered the susceptibility to cancer, allergy or obesity in distal skin and adipose tissue. Metagenome, transcriptome and metabolome analyses revealed that the deficiency of these sPLA2s altered the gut microbiota, accompanied by notable changes in various blood metabolites and fecal bacterial lipids. The phenotypes in distal tissues were lost when the knockout mice were co-housed with littermate wild-type mice, or when they were housed in a more stringent pathogen-free facility. Thus, our results highlight a new aspect of the sPLA2 family as a modulator of gut microbiota, perturbation of which affects host responses in distal tissues.

Academic Significance and Societal Importance of the Research Achievements

近年、腸内細菌叢の組成変化が腸疾患だけでなく遠隔組織の病態にも波及することが注目されている。したがって、腸内細菌叢が宿主に及ぼす影響とそのメカニズムを解明することは、国民のQOL向上を目指す上で学術的にも社会的にも重要である。本研究は細胞外リン脂質代謝酵素sPLA2の動作原理に関する概念を大きく転換させるものであり、脂質や腸内細菌叢の研究領域への学術的貢献度は高い。また社会的には、将来的にsPLA2の機能介入を通じて腸内細菌叢と宿主の相互作用をプレバイオティクスやプロバイオティクスにより人為的に調節できれば、新しい機序に基づく健康食品・医薬品の開発に結びつくことも期待される。

Report

(3 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • Research Products

    (26 results)

All 2020 2019 Other

All Int'l Joint Research (1 results) Journal Article (11 results) (of which Peer Reviewed: 7 results,  Open Access: 7 results) Presentation (12 results) (of which Int'l Joint Research: 5 results,  Invited: 6 results) Remarks (2 results)

  • [Int'l Joint Research] University Laval(カナダ)

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Secreted phospholipase PLA2G2D contributes to metabolic health by mobilizing omega3 polyunsaturated fatty acids in WAT2020

    • Author(s)
      Sato H, Taketomi Y, Miki Y, Murase R, Yamamoto K, Murakami M.
    • Journal Title

      Cell Reports

      Volume: 31 Issue: 5 Pages: 107579-107579

    • DOI

      10.1016/j.celrep.2020.107579

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Group V secreted phospholipase A2 plays a protective role against aortic dissection2020

    • Author(s)
      Kazuhiro Watanabe, Yoshitaka Taketomi, Yoshimi Miki, Kiyotaka Kugiyama, Makoto Murakami
    • Journal Title

      Journal of Biological Chemistry

      Volume: 295 Issue: 30 Pages: 10092-10111

    • DOI

      10.1074/jbc.ra120.013753

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Prostaglandin E2-EP4 axis promotes lipolysis and fibrosis in adipose tissue leading to ectopic fat deposition and insulin resistance.2020

    • Author(s)
      Inazumi T, Yamada K, Shirata N, Sato H, Taketomi Y, Morita K, Hohjoh H, Tsuchiya S, Oniki K, Watanabe T, Sasaki Y, Oike Y, Ogata Y, Saruwatari J, Murakami M, Sugimoto Y.
    • Journal Title

      Cell Rep.

      Volume: 33 Issue: 2 Pages: 108265-108265

    • DOI

      10.1016/j.celrep.2020.108265

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Updating phospholipase A2 biology.2020

    • Author(s)
      Murakami M, Sato H, Taketomi Y.
    • Journal Title

      Biomolecules

      Volume: 10 Issue: 10 Pages: 1457-1457

    • DOI

      10.3390/biom10101457

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 脂質とアレルギー疾患2020

    • Author(s)
      村上誠
    • Journal Title

      アレルギー

      Volume: 69 Pages: 250-255

    • NAID

      130007853935

    • Related Report
      2020 Annual Research Report
  • [Journal Article] 脂質メディエーターによるマスト細胞とアレルギー炎症の制御2020

    • Author(s)
      村上誠
    • Journal Title

      アレルギーの臨床

      Volume: 41 Pages: 13-16

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Novel functions of Phospholipase A2s: Overview.2019

    • Author(s)
      Murakami M.
    • Journal Title

      Biochim Biophys Acta Mol Cell Biol?Lipids.

      Volume: 1864 Issue: 6 Pages: 763-765

    • DOI

      10.1016/j.bbalip.2019.02.005

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Group IID, IIE, IIF and III secreted phospholipase A2s.2019

    • Author(s)
      Murakami M, Miki Y, Sato H, Murase R, Taketomi Y, Yamamoto K.
    • Journal Title

      Biochim Biophys Acta Mol Cell Biol Lipids.

      Volume: 1864 Issue: 6 Pages: 803-818

    • DOI

      10.1016/j.bbalip.2018.08.014

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] The role of PNPLA1 in ω-O-acylceramide synthesis and skin barrier function2019

    • Author(s)
      Hirabayashi Tetsuya、Murakami Makoto、Kihara Akio
    • Journal Title

      Biochimica et Biophysica Acta (BBA) - Molecular and Cell Biology of Lipids

      Volume: 1864 Issue: 6 Pages: 869-879

    • DOI

      10.1016/j.bbalip.2018.09.010

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 脂質メディエーターが繋ぐ臓器連関と動的恒常性2019

    • Author(s)
      村上誠
    • Journal Title

      実験医学

      Volume: 37 Pages: 149-155

    • Related Report
      2019 Research-status Report
  • [Journal Article] ホスホリパーゼA2 による代謝と疾患の制御2019

    • Author(s)
      村上誠
    • Journal Title

      医学のあゆみ

      Volume: 269 Pages: 1024-1028

    • Related Report
      2019 Research-status Report
  • [Presentation] リン脂質代謝による代謝系・循環器系の制御2020

    • Author(s)
      村上誠
    • Organizer
      28th Cardiovascular Metabolism Aging Conference
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] cPLA2 or sPLA2? What is the most important phospholipase in lung injury?2020

    • Author(s)
      Makoto Murakami
    • Organizer
      International Week on Surfactant Research
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 分泌性ホスホリパーゼA2はエクソソームのリン脂質を分解する2020

    • Author(s)
      三木寿美、山本圭、工藤海、幸谷愛、武富芳隆、村上誠
    • Organizer
      第93回日本生化学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] XIIA型分泌性ホスホリパーゼA2はIL-17A関連疾患を増悪する2020

    • Author(s)
      望月茅可、武富芳隆、入江敦、村上誠
    • Organizer
      第93回日本生化学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 脂質代謝酵素PNPLA6は網膜および全身代謝の恒常性の維持に関与する2020

    • Author(s)
      小野喬、武富芳隆、佐藤弘泰、曽我朋義、徳岡涼美、小田吉哉、相原一、村上誠
    • Organizer
      第93回日本生化学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 新規細胞質型ホスホリパーゼA2(cPLA2δ)の機能解析2020

    • Author(s)
      杉本奈央、高宮里奈、梁陸伊韻、三木寿美、村上誠
    • Organizer
      第93回日本生化学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 脂質とアレルギー疾患2019

    • Author(s)
      村上誠
    • Organizer
      第68回日本アレルギー学会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] PLA2と炎症・再生2019

    • Author(s)
      村上誠
    • Organizer
      第40回日本炎症・再生医学会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Phospholipid metabolism and lipid mediators in health and diseases2019

    • Author(s)
      Makoto Murakami
    • Organizer
      Asia Pacific Society for Biology and Medical Sciences (APSBMS) 2019 Annual Meeting
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] LipoQuality regulation by the phospholipase A2 family2019

    • Author(s)
      Makoto Murakami
    • Organizer
      The 2nd International Conference on Lipoquality
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Group IIA phospholipase A2 regulates gut microbiome2019

    • Author(s)
      Yoshimi Miki, Yoshitaka Taketomi, Kei Yamamoto, Koji Hosomi, Jun Kunisawa, Siddabasave Gowda B. Gowda, Kazutaka Ikeda, Makoto Arita, Makoto Murakami
    • Organizer
      The 60th International Conference on the Bioscience of Lipids (ICBL)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Distinct Roles of phospholipase A2s in colitis and colonic cancer2019

    • Author(s)
      Remi Murase, Yoshitaka Taketomi, Yoshimi Miki, Kei Yamamoto, Makoto Murakami
    • Organizer
      The 60th International Conference on the Bioscience of Lipids (ICBL)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Remarks] 東京大学大学院医学系研究科健康環境医工学部門ホームページ

    • URL

      https://lmmhs.m.u-tokyo.ac.jp

    • Related Report
      2020 Annual Research Report
  • [Remarks] 東京大学大学院医学系研究科 疾患生命工学センター 健康環境医工学部門

    • URL

      https://lmmhs.m.u-tokyo.ac.jp/home_j.html

    • Related Report
      2019 Research-status Report

URL: 

Published: 2019-07-04   Modified: 2022-01-27  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi