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Impact of gut microbial LPS on cardiovascular diseases

Research Project

Project/Area Number 19K23944
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0902:General internal medicine and related fields
Research InstitutionKobe University

Principal Investigator

Yoshida Naofumi  神戸大学, 医学研究科, 医学研究員 (00846321)

Project Period (FY) 2019-08-30 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords循環器疾患 / 腸内細菌 / リポ多糖 / 動脈硬化 / lipid A / 質量分析
Outline of Research at the Start

本研究では、以下の2つの目標を達成する。
1. 質量分析計を用いて、lipid Aのアシル基の数(=炎症惹起能、質)を反映した、生体試料中LPSの新規定量法の基盤を確立する。
2. 腸管に存在する種々のLPSがどのように炎症起点となっているのかを解明する。
従来、質量で語られていたLPSであるが、その構造と炎症惹起能に着目した新たな定量法を質量分析計を用いて確立することで、これまでのLPSによる慢性炎症の概念を大きく覆す、独創的かつ汎用性・発展性のある挑戦的な研究としたい。慢性炎症性疾患における炎症の起点としての腸内細菌叢由来LPSの概念を確立し、将来、新たな抗炎症治療法の提案に繋げたい。

Outline of Final Research Achievements

Cardiovascular disease (CVD) is considered as an inflammatory disease. Thus, we aim to understand the novel inflammatory origin of CVD, and explore therapeutic approaches to directly regulate the source of inflammation. We previously reported that gut microbiota dysbiosis is related to coronary artery disease and heart failure. As gut bacterial lipopolysaccharide (LPS) acts as an important intermediary between the gut microbiota and immune cell activation, we hypothesized that it could have a pivotal role as an inflammatory origin in the development of CVD. We elucidated that each bacterial species has a distinct LPS structure, which are associated with differing immunogenicity. CVD patients have high immunogenicity LPS and fecal LPS levels in patients with CVD is higher than that of non-CVD patients. The atherosclerosis-prone mice injected LPS show worsening atherosclerosis. These results indicate that gut microbial LPS serve as a novel therapeutic approach to prevent CVD.

Academic Significance and Societal Importance of the Research Achievements

これまで我々は、循環器疾患患者における特徴的な腸内細菌叢を明らかとしてきた。しかしこの腸内細菌叢の偏倚が、どのように循環器疾患の発症、進展に寄与しているのかについては未解明の部分が残されていた。本研究成果により、循環器疾患患者の腸内細菌由来の炎症惹起能の高いリポ多糖が、循環器疾患の発症、進展に関与している事が示唆された。この事から腸内細菌と循環器疾患を繋ぐ機序の一端が解明され、今後腸内細菌由来リポ多糖に着目した、新たな循環器疾患の予防、治療法の開発が期待される。

Report

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

    (17 results)

All 2021 2020 2019

All Journal Article (7 results) (of which Peer Reviewed: 7 results,  Open Access: 4 results) Presentation (2 results) Book (7 results) Patent(Industrial Property Rights) (1 results) (of which Overseas: 1 results)

  • [Journal Article] Unraveling the Effects of Trimethylamine N-Oxide on Stroke: “The lower, the better?”2021

    • Author(s)
      Yamashita Tomoya、Yoshida Naofumi、Emoto Takuo、Hirata Ken-ichi
    • Journal Title

      Journal of Atherosclerosis and Thrombosis

      Volume: 28 Issue: 4 Pages: 314-316

    • DOI

      10.5551/jat.ED142

    • NAID

      130008014044

    • ISSN
      1340-3478, 1880-3873
    • Year and Date
      2021-04-01
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Gut microbiota-derived toxins and metabolites in cardiovascular diseases2021

    • Author(s)
      Yamashita Tomoya、Yoshida Naofumi、Emoto Takuo、Saito Yoshihiro、Hirata Ken‐ichi
    • Journal Title

      Toxins

      Volume: -

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A possible beneficial effect of Bacteroides on faecal lipopolysaccharide activity and cardiovascular diseases2020

    • Author(s)
      Yoshida Naofumi、Yamashita Tomoya、Kishino Shigenobu、Watanabe Hikaru、Sasaki Kengo、Sasaki Daisuke、Tabata Tokiko、Sugiyama Yuta、Kitamura Nahoko、Saito Yoshihiro、Emoto Takuo、Hayashi Tomohiro、Takahashi Tomoya、Shinohara Masakazu、Osawa Ro、Kondo Akihiko、Yamada Takuji、Ogawa Jun、Hirata Ken-ichi
    • Journal Title

      Scientific Reports

      Volume: 10 Issue: 1 Pages: 13009-13009

    • DOI

      10.1038/s41598-020-69983-z

    • NAID

      120006879534

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Metabolic alterations in plasma after laparoscopic sleeve gastrectomy2020

    • Author(s)
      Yoshida Naofumi、Kitahama Seiichi、Yamashita Tomoya、Hirono Yasuko、Tabata Tokiko、Saito Yoshihiro、Shinohara Ryohei、Nakashima Hitomi、Emoto Takuo、Hirota Yushi、Takahashi Tetsuya、Ogawa Wataru、Hirata Ken‐ichi
    • Journal Title

      Journal of Diabetes Investigation

      Volume: 12 Issue: 1 Pages: 123-129

    • DOI

      10.1111/jdi.13328

    • NAID

      120006952753

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Gut microbial composition in patients with atrial fibrillation: effects of diet and drugs2020

    • Author(s)
      Tabata Tokiko、Yamashita Tomoya、Hosomi Koji、Park Jonguk、Hayashi Tomohiro、Yoshida Naofumi、Saito Yoshihiro、Fukuzawa Koji、Konishi Kana、Murakami Haruka、Kawashima Hitoshi、Mizuguchi Kenji、Miyachi Motohiko、Kunisawa Jun、Hirata Ken-ichi
    • Journal Title

      Heart and Vessels

      Volume: 36 Issue: 1 Pages: 105-114

    • DOI

      10.1007/s00380-020-01669-y

    • NAID

      120006952752

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Circulating intermediate monocytes and toll-like receptor 4 correlate with low-voltage zones in atrial fibrillation2020

    • Author(s)
      Suehiro Hideya、Fukuzawa Koji、Yoshida Naofumi、Kiuchi Kunihiko、Takami Mitsuru、Akita Tomomi、Tabata Tokiko、Takemoto Makoto、Sakai Jun、Nakamura Toshihiro、Yatomi Atsusuke、Takahara Hiroyuki、Sonoda Yusuke、Nakasone Kazutake、Yamamoto Kyoko、Suzuki Atsushi、Yamashita Tomoya、Hirata Ken-ichi
    • Journal Title

      Heart and Vessels

      Volume: 35 Issue: 12 Pages: 1717-1726

    • DOI

      10.1007/s00380-020-01647-4

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The impact of antibiotics on the metabolic status of obese adults without bacterial infection: a systematic review and meta-analysis2020

    • Author(s)
      Yoshida Naofumi、Saito Yoshihiro、Tsujimoto Yasushi、Taito Shunsuke、Banno Masahiro、Kataoka Yuki、Yamashita Tomoya、Hirata Ken-ichi
    • Journal Title

      Annals of Translational Medicine

      Volume: 8 Issue: 17 Pages: 1059-1059

    • DOI

      10.21037/atm-20-1007a

    • NAID

      120006954855

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Presentation] Manipulating BCKA catabolism in brown adipose tissue via gut microbiota modulation for treating obesity2021

    • Author(s)
      Naofumi Yoshida、Tomoya Yamashita、Masakazu Shinohara、Ken-ichi Hirata
    • Organizer
      第85回日本循環器学会YIA
    • Related Report
      2020 Annual Research Report
  • [Presentation] Bacteroides Decrease Human Fecal Lipopolysaccharide Levels2020

    • Author(s)
      Naofumi Yoshida、Tomoya Yamashita、Tokiko Tabata、Yoshihiro Saito、Takuo Emoto、Tomohiro Hayashi、Masakazu Shinohara、Ken-ichi Hirata
    • Organizer
      第84回日本循環器学会YIA
    • Related Report
      2020 Annual Research Report
  • [Book] Precision Medicine2021

    • Author(s)
      吉田尚史
    • Total Pages
      5
    • Publisher
      北隆館
    • Related Report
      2020 Annual Research Report
  • [Book] Pharma Medica2020

    • Author(s)
      吉田尚史、山下智也、平田健一
    • Total Pages
      4
    • Publisher
      メディカルレビュー社
    • Related Report
      2020 Annual Research Report
  • [Book] ヒトマイクロバイオーム Vol.22020

    • Author(s)
      吉田尚史、山下智也、平田健一
    • Total Pages
      4
    • Publisher
      メディカルレビュー社
    • Related Report
      2020 Annual Research Report
  • [Book] 医学のあゆみ2020

    • Author(s)
      吉田尚史、山下智也、平田健一
    • Total Pages
      7
    • Publisher
      医歯薬出版株式会社
    • Related Report
      2020 Annual Research Report
  • [Book] PROGRESS IN MEDICINE2020

    • Author(s)
      山下智也、吉田尚史、林友鴻、田畑論子、江本拓央、平田健一
    • Total Pages
      7
    • Publisher
      メディカルオンライン
    • Related Report
      2020 Annual Research Report
  • [Book] 循環器ジャーナル2020

    • Author(s)
      吉田尚史、山下智也、平田健一
    • Total Pages
      4
    • Publisher
      医学書院
    • Related Report
      2020 Annual Research Report 2019 Research-status Report
  • [Book] 医学の歩み2019

    • Author(s)
      吉田尚史、山下智也、平田健一
    • Total Pages
      6
    • Publisher
      医歯薬出版株式会社
    • Related Report
      2019 Research-status Report
  • [Patent(Industrial Property Rights)] LIPOPOLYSACCHARIDE-REGULATED ENTERIC BACTERIA AND USE THEREOF2019

    • Inventor(s)
      山下智也、江本拓央、吉田尚史
    • Industrial Property Rights Holder
      山下智也、江本拓央、吉田尚史
    • Industrial Property Rights Type
      特許
    • Filing Date
      2019
    • Acquisition Date
      2020
    • Related Report
      2020 Annual Research Report
    • Overseas

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Published: 2019-09-03   Modified: 2022-01-27  

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