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

Anti-diabetic role of food factors via G protein-coupled receptors

Research Project

Project/Area Number 19K05866
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 38050:Food sciences-related
Research InstitutionOsaka Prefecture University

Principal Investigator

Inui Hiroshi  大阪府立大学, 生命環境科学研究科, 客員研究員 (20193568)

Co-Investigator(Kenkyū-buntansha) 原田 直樹  大阪府立大学, 生命環境科学研究科, 准教授 (00529141)
乾 隆  大阪府立大学, 生命環境科学研究科, 教授 (80352912)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywordsクルクミン / Gタンパク質共役型受容体 / インクレチンホルモン / GLP-1 / 機能性食品成分 / GPR55 / GPR97 / 構造活性相関 / グルココルチコイド / GPCR / 食品成分 / 2型糖尿病 / 膵β細胞 / 食品因子
Outline of Research at the Start

これまでに食品成分で活性化されるGPCRを複数見出している。本研究では、糖尿病予防・改善効果が期待される食品因子とGPCRの組み合わせに着目して検討する。また、GPCRであるグルカゴン受容体の機能を抑制して糖尿病を予防する食品因子の検索も行う。本研究の成果は、GPCRに関連した2型糖尿病の予防・改善に関する研究基盤の構築と、科学的エビデンスを有する機能性食品成分の提供に繋がることが期待される。

Outline of Final Research Achievements

Identification of target molecules is important to elucidate the action mechanism of functional foods. In this study, we investigated the effects of food ingredients on the activation of G protein-coupled receptors.
As a result, GPR55 and GPR97 were identified as potential target molecules of curcumin. The structure-function relationship in the activation of both the receptors was clarified. In addition, our results suggested that the activation of GPR55 activation by curcumin was involved in the secretion of incretin hormone, leading to anti-diabetic activity of curcumin.

Academic Significance and Societal Importance of the Research Achievements

機能性食品成分を用いた健康社会の実現のために、食品成分の効果が現れるための分子機構を知ることは重要な課題となっている。本研究では、ターメリックに含まれる機能性食品成分であるクルクミンが、Gタンパク質共役型受容体ファミリーの一員であるGPR55とGPR97を活性化させることで機能性を発揮する機構が存在することを見出した。GPR55の活性化機構については、クルクミンの抗糖尿病作用に関与すると考えられた。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (12 results)

All 2022 2020 2019 Other

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

  • [Int'l Joint Research] Vanderbilt University(米国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] Vanderbilt University(米国)

    • Related Report
      2020 Research-status Report
  • [Journal Article] Curcumin activates G protein-coupled receptor 97 (GPR97) in a manner different from glucocorticoid2022

    • Author(s)
      Harada Naoki、Arahori Yumi、Okuyama Mai、Luis Paula B.、Joseph Akil I.、Kitakaze Tomoya、Goshima Naoki、Schneider Claus、Inui Hiroshi、Yamaji Ryoichi
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 595 Pages: 41-46

    • DOI

      10.1016/j.bbrc.2022.01.075

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Identification of G protein-coupled receptor 55 (GPR55) as a target of curcumin2022

    • Author(s)
      Harada Naoki、Okuyama Mai、Teraoka Yoshiaki、Arahori Yumi、Shinmori Yoh、Horiuchi Hiroko、Luis Paula B.、Joseph Akil I.、Kitakaze Tomoya、Matsumura Shigenobu、Hira Tohru、Yamamoto Norio、Iuni Takashi、Goshima Naoki、Schneider Claus、Inui Hiroshi、Yamaji Ryoichi
    • Journal Title

      npj Science of Food

      Volume: 6 Issue: 1 Pages: 4-4

    • DOI

      10.1038/s41538-021-00119-x

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] GPR55活性化物質としてのクルクミンの同定とインクレチン分泌における役割2022

    • Author(s)
      原田直樹、奥山真衣、寺岡佳晃、荒堀有美、新森耀、北風智也、乾隆、乾博、山地亮一.
    • Organizer
      2022年度 日本農芸化学会大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Identification of G protein-coupled receptors GPR55 and GPR97 as molecular targets of curcumin and involvement of GPR55 in the antidiabetic function of curcumin2022

    • Author(s)
      Naoki Harada, Mai Okuyama, Yoshiaki Teraoka, Yumi Arahori, Tomoya Kitakaze, Takashi Inui, Naoki Goshima, Claus Schneider, Hiroshi Inui, Ryoichi Yamaji.
    • Organizer
      22nd International Congress of Nutrition (ICN2022)
    • Related Report
      2021 Annual Research Report
  • [Presentation] クルクミンによるGPR97活性化機構の解明2020

    • Author(s)
      荒堀有美、原田直樹、五島直樹、乾博、山地亮一
    • Organizer
      第59回 日本栄養・食糧学会 近畿支部大会
    • Related Report
      2020 Research-status Report
  • [Presentation] Mogrolによる胆汁酸受容体TGR5の活性化作用について2020

    • Author(s)
      漆崎広喜、寺岡佳晃、原田直樹、伊藤雄太、村田雄司、石黒正路、乾隆、乾博、山地亮一
    • Organizer
      日本農芸化学会関西支部例会(第512回講演会)
    • Related Report
      2019 Research-status Report
  • [Presentation] Identification of two G protein-coupled receptors as targets of curcumin2019

    • Author(s)
      Yumi Arahori, Mai Okuyama, Naoki Harada, Yoshiaki Teraoka, Hiroko Horiuchi, Norio Yamamoto, Naoki Goshima, Takashi Iuni, Hiroshi Inui, Ryoichi Yamaji
    • Organizer
      2019 International Conference on Food Factors
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Effects of S-equol on pancreatic β-cell function as incretin mimetics2019

    • Author(s)
      Naoki Harada, Hiroko Horiuchi, Hiroshi Inui, Ryoichi Yamaji
    • Organizer
      2019 International Conference on Food Factors
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Remarks] 食品代謝栄養学-大阪府立大学

    • URL

      http://www.biosci.osakafu-u.ac.jp/NC/

    • Related Report
      2021 Annual Research Report
  • [Remarks] 食品代謝栄養学-大阪公立大学

    • URL

      https://cms-admin.omu.ac.jp/agri/nc/publication/index.html

    • Related Report
      2021 Annual Research Report

URL: 

Published: 2019-04-18   Modified: 2023-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi