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RNA Sensing by Gut Piezo1 Is Essential for Systemic Serotonin Synthesis.

Research Project

Project/Area Number 19K22712
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 57:Oral science and related fields
Research InstitutionNational Institute for Physiological Sciences

Principal Investigator

Maruyama Kenta  生理学研究所, 生体機能調節研究領域, 特別協力研究員 (60724119)

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腸蠕動 / 大腸炎 / 骨粗鬆症 / Piezo1 / リボ核酸 / 腸炎 / 腸内細菌 / 腸骨連関 / メカノセンサー / 骨代謝
Outline of Research at the Start

近年、細胞表面におけるずり応力を認識して活性化するカルシウムイオンチャネル群(メカノセンサー遺伝子)が相次いで発見され、注目を集めている。申請者らは、腸上皮に発現するメカノセンサー遺伝子が骨量を制御していることを示す証差を得た。本研究では、メカノセンサーが腸においてどのような機序で活性化しているのか、また、遠隔臓器である骨の代謝をどうやって制御しているのかを明らかにする。また、腸-骨連関を担う分子実体の同定をつうじて、腸上皮メカノセンサーを標的とした経口骨粗鬆症治療薬を開発する。

Outline of Final Research Achievements

In this study, we discovered that the cation channel Piezo1 in the gut acts as a sensor of single-stranded RNA (ssRNA) governing 5-HT production. Intestinal epithelium-specific deletion of mouse Piezo1 profoundly disturbed gut peristalsis, impeded experimental colitis, and suppressed serum 5-HT levels. Because of systemic 5-HT deficiency, conditional knockout of Piezo1 increased bone formation. Notably, fecal ssRNA was identified as a natural Piezo1 ligand, and ssRNA-stimulated 5-HT synthesis from the gut was evoked in a MyD88/TRIF-independent manner. Colonic infusion of RNase A suppressed gut motility and increased bone mass. These findings suggest gut ssRNA as a master determinant of systemic 5-HT levels, indicating the ssRNA-Piezo1 axis as a potential prophylactic target for treatment of bone and gut disorders.

Academic Significance and Societal Importance of the Research Achievements

腸内RNAあるいは腸内Piezo1を標的とした有効な「腸管セロトニン調節医療」が開発された場合、骨粗鬆症患者のみならず、潰瘍性大腸炎と過敏性腸症候群の患者にも福音がもたらされる可能性がある。

Report

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

    (18 results)

All 2021 2020 2019 Other

All Int'l Joint Research (1 results) Journal Article (10 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 5 results,  Open Access: 3 results) Presentation (5 results) (of which Int'l Joint Research: 1 results,  Invited: 4 results) Remarks (2 results)

  • [Int'l Joint Research] ARMI(オーストラリア)

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Senso-immunology: crosstalk between nociceptive and immune systems2021

    • Author(s)
      Kenta Maruyama*.
    • Journal Title

      FEBS J

      Volume: - Issue: 14 Pages: 4132-4145

    • DOI

      10.1111/febs.15846

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 感覚免疫学2021

    • Author(s)
      丸山健太
    • Journal Title

      ブレインサイエンスレビュー2021

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Zinc Finger Protein St18 Protects against Septic Death by Inhibiting VEGF-A from Macrophages2020

    • Author(s)
      Maruyama Kenta、Kidoya Hiroyasu、Takemura Naoki、Sugisawa Erika、Takeuchi Osamu、Kondo Takeshi、Eid Mohammed Mansour Abbas、Tanaka Hiroki、Martino Mika?l M.、Takakura Nobuyuki、Takayama Yasunori、Akira Shizuo、Vandenbon Alexis、Kumagai Yutaro
    • Journal Title

      Cell Reports

      Volume: 32 Issue: 2 Pages: 107906-107906

    • DOI

      10.1016/j.celrep.2020.107906

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] RNA Sensing by Gut Piezo1 Is Essential for Systemic Serotonin Synthesis2020

    • Author(s)
      Sugisawa Erika、Takayama Yasunori、Takemura Naoki、Kondo Takeshi、Hatakeyama Shigetsugu、Kumagai Yutaro、Sunagawa Masataka、Tominaga Makoto、Maruyama Kenta
    • Journal Title

      Cell

      Volume: 182 Issue: 3 Pages: 609-624

    • DOI

      10.1016/j.cell.2020.06.022

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Enhancing the regenerative effectiveness of growth factors by local inhibition of interleukin-1 receptor signaling.2020

    • Author(s)
      Julier Z, Karami R, Nayer B, Lu YZ, Park AJ, Maruyama K, Kuhn GA, Muller R, Akira S, Martino MM*.
    • Journal Title

      Sci Adv

      Volume: 6 Issue: 24

    • DOI

      10.1126/sciadv.aba7602

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 腸内細菌RNAのセロトニン誘導による腸と骨の恒常性の制御2020

    • Author(s)
      丸山健太
    • Journal Title

      バイオサイエンスとインダストリ―

      Volume: 79 Pages: 34-35

    • Related Report
      2020 Annual Research Report
  • [Journal Article] 腸のPiezo1はセロトニン産生を介して腸と骨の恒常性を調節する2020

    • Author(s)
      丸山健太
    • Journal Title

      実験医学

      Volume: 38 Pages: 3256-3258

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Emerging Perspectives on Pain Management by Modulation of TRP Channels and ANO1.2019

    • Author(s)
      Takayama Y, Derouiche S, Maruyama K, Tominaga M.
    • Journal Title

      Int J Mol Sci

      Volume: 20 Issue: 14 Pages: 3411-3411

    • DOI

      10.3390/ijms20143411

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 感覚免疫学の視点からみた真菌感染不快情動のバイオロジー~Dectin1シグナルを介して制御される痛みと骨炎症~2019

    • Author(s)
      丸山健太
    • Journal Title

      THE BONE

      Volume: 33 Pages: 29-37

    • Related Report
      2019 Research-status Report
  • [Journal Article] 痛みは如何にして感知され、どのような意味を持つのか?~末梢性疼痛のしられざる発生機構とその生体調節機能~2019

    • Author(s)
      丸山健太
    • Journal Title

      実験医学

      Volume: 38 Pages: 388-395

    • Related Report
      2019 Research-status Report
  • [Presentation] “微生物による骨破壊のメカニズム”2021

    • Author(s)
      丸山健太
    • Organizer
      日本解剖学会総会・日本生理学会大会 合同シンポジウム
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] “Nociceptor orchestrates Brain Energy Metabolism to Protect Septic Death”2020

    • Author(s)
      丸山健太
    • Organizer
      痛み研究会 生理学研究所
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 13.“Relationship between Bone, Immunity and Sensation ~How do integrated systems work?~”2019

    • Author(s)
      丸山健太
    • Organizer
      山口大学医学部大学院セミナー 山口大学医学部
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 14.“Relationship between Bone, Immunity and Sensation ~How do integrated systems work?~”2019

    • Author(s)
      丸山健太
    • Organizer
      生理学研究所部門公開セミナー 生理学研究所
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 4.“痛覚システムにビルトインされている骨自然免疫機構をあぶりだす”2019

    • Author(s)
      丸山健太
    • Organizer
      第92回日本薬理学会年会シンポジウム 大阪国際会議場
    • Related Report
      2019 Research-status Report
    • Invited
  • [Remarks] Molecular Gerontology

    • URL

      https://www.moleculargerontology.com/

    • Related Report
      2020 Annual Research Report
  • [Remarks] Kenta Maruyama

    • URL

      https://www.moleculargerontology.com/

    • Related Report
      2019 Research-status Report

URL: 

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

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