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Clarification of the signal transduction mechanism of hetero-dimerized opioid receptors that cause side effects of opioids

Research Project

Project/Area Number 21K19360
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 48:Biomedical structure and function and related fields
Research InstitutionKansai Medical University

Principal Investigator

KOBAYASHI Takuya  関西医科大学, 医学部, 教授 (20311730)

Co-Investigator(Kenkyū-buntansha) 井上 明俊  関西医科大学, 医学部, 助教 (50709152)
寿野 良二  関西医科大学, 医学部, 准教授 (60447521)
Project Period (FY) 2021-07-09 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2023: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2022: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2021: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywordsオピオイド / 副作用 / オピオイド受容体 / ヘテロ二量体 / シグナル伝達
Outline of Research at the Start

Gタンパク質共役型受容体 (GPCR)がヘテロダイマーを形成し、受容体のリガンド親和性やシグナル伝達などの機能変化を起こす。GPCRのヘテロマー化は副作用を抑えた創薬のターゲットとして注目されている。本研究では、MOR1DとGRPRの結合がどのようにクロスアクティベーションを起こしているか明らかにするために、MOR1DとGRPRのヘテロマー認識抗体、もしくは各々の受容体に特異的な抗体を人工的につなげたバイスペシフィック抗体の取得を行う。抗体でMOR1D受容体とGRPR受容体のヘテロマーを安定的に固定化し、ヘテロマーの立体構造解析を行うことで、世界初の立体構造を原子レベルで明らかにしたい。

Outline of Final Research Achievements

G protein-coupled receptors (GPCRs) mediate intracellular physiological processes by interacting with signaling molecules such as G proteins and arrestins, a process initiated by binding with extracellular agonists. The emergence of biased agonists, which can selectively propagate signals in the presence of agonists, has garnered attention in the development of drugs without side effects. This strategy encompasses developing agents that can preferentially actuate either G protein or arrestin signaling pathways, leveraging therapeutic advantages while minimizing adverse outcomes. However, the intricacies of how biased agonists provoke selective signal transduction remain largely elusive.

Academic Significance and Societal Importance of the Research Achievements

本研究ではヘテロマーを安定化する抗体を開発し、GRPR-MOR1Dヘテロマーのクロスアクティベーションの分子機構を構造生物学的に解明することを目指す。独自のタンパク質精製技術と抗体作製技術を用いて、ヘテロマー認識抗体や、各々の受容体に特異的な抗体を人工的につなげたバイスペシフィック抗体などのヘテロマー安定化抗体を作製する。抗体安定化MOR1D-GRPRヘテロマーの構造情報はX線結晶構造解析およびクライオ電子顕微鏡単粒子解析により原子分解能で明らかにする。本研究におけるへテロマー安定化抗体取得技術は多くのGPCRヘテロマーの構造解析に応用できるため、ヘテロマー研究を大きく推進する。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (15 results)

All 2024 2023 2022 2021

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

  • [Journal Article] Interaction modes of human orexin 2 receptor with selective and nonselective antagonists studied by NMR spectroscopy2024

    • Author(s)
      Imamura Kayo、Akagi Ken-Ichi、Miyanoiri Yohei、Tsujimoto Hirokazu、Hirokawa Takatsugu、Ashida Hideo、Murakami Kaori、Inoue Asuka、Suno Ryoji、Ikegami Takahisa、Sekiyama Naotaka、Iwata So、Kobayashi Takuya、Tochio Hidehito
    • Journal Title

      Structure

      Volume: 32 Issue: 3 Pages: 352-361

    • DOI

      10.1016/j.str.2023.12.008

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A Liquid Chromatography-Mass Spectrometry Method to Study the Interaction between Membrane Proteins and Low-Molecular-Weight Compound Mixtures2022

    • Author(s)
      Hideo Ogiso, Ryoji Suno, Takuya Kobayashi, Masashi Kawami, Mikihisa Takano, Masaru Ogasawara
    • Journal Title

      Molecules

      Volume: 27(15) Issue: 15 Pages: 4889-4889

    • DOI

      10.3390/molecules27154889

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Structural insights into the G protein selectivity revealed by the human EP3-Gi signaling complex2022

    • Author(s)
      Ryoji Suno, Yukihiko Sugita, Kazushi Morimoto, Hiroko Takazaki, Hirokazu Tsujimoto, Mika Hirose, Chiyo Suno-Ikeda, Norimichi Nomura, Tomoya Hino, Asuka Inoue, Kenji Iwasaki, Takayuki Kato, So Iwata, Takuya Kobayashi
    • Journal Title

      Cell Rep.

      Volume: 40(11) Issue: 11 Pages: 111323-111323

    • DOI

      10.1016/j.celrep.2022.111323

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Glycyrrhizin derivatives suppress cancer chemoresistance by inhibiting progesterone receptor membrane component 12021

    • Author(s)
      Yasuaki Kabe, Ikko Koike, Tatsuya Yamamoto, Miwa Hirai, Ayaka Kanai, Ryogo Furuhata, Hitoshi Tsugawa, Erisa Harada, Kenji Sugase, Kazue Hanadate, Nobuji Yoshikawa, Hiroaki Hayashi, Masanori Noda, Susumu Uchiyama, Hiroki Yamazaki, Hirotoshi Tanaka, Takuya Kobayashi, Hiroshi Handa, Makoto Suematsu.
    • Journal Title

      Cancers (Basel)

      Volume: 13 Issue: 13 Pages: 3265-3265

    • DOI

      10.3390/cancers13133265

    • URL

      https://pure.teikyo.jp/en/publications/12bf5c55-ce9a-4604-a017-5925a61f3fc1

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Cryo-EM structure of the human MT1-Gi signaling complex.2021

    • Author(s)
      Okamoto, H. H., Miyauchi, H., Inoue, A., Raimondi, F., Tsujimoto, H., Kusakizako, T., Shihoya, W., Yamashita, K., Suno, R., Nomura, N., Kobayashi, T., Iwata, S., Nishizawa, T. and Nureki, O.
    • Journal Title

      Nat. Struct. Mol. Biol.

      Volume: 28 Issue: 8 Pages: 694-701

    • DOI

      10.1038/s41594-021-00634-1

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Vibrational spectroscopy analysis of ligand efficacy in human M2 muscarinic acetylcholine receptor (M2R)2021

    • Author(s)
      Katayama Kota、Suzuki Kohei、Suno Ryoji、Kise Ryoji、Tsujimoto Hirokazu、Iwata So、Inoue Asuka、Kobayashi Takuya、Kandori Hideki
    • Journal Title

      Communications Biology

      Volume: 4 Issue: 1 Pages: 1-10

    • DOI

      10.1038/s42003-021-02836-1

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 「バイアスドリガンドによるヒトκオピオイド受容体シグナル伝達の構造的洞察」2023

    • Author(s)
      寿野良二
    • Organizer
      第46回日本分子生物学会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 「Structural and dynamic insights into the biased signaling mechanism of the kappa opioid receptor」2023

    • Author(s)
      寿野良二
    • Organizer
      生理学研究
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 「Structural insights into human kappa opioid receptor signaling by biased ligand」2023

    • Author(s)
      寿野良二
    • Organizer
      第61回日本生物物理学会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 「G蛋白質共役受容体の多様な機能発現機構の構造生物学的解明」2023

    • Author(s)
      寿野良二
    • Organizer
      東京理科大学 研究推進機構 総合研究院 生物環境イノベーション研究部門・公開シンポジウム
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] プロスタグランジン受容体の立体構造を基盤とした創薬開発を目指して2023

    • Author(s)
      小林拓也
    • Organizer
      日本薬学会第143年会
    • Related Report
      2022 Research-status Report
  • [Presentation] プロスタグランジン受容体の立体構造を基盤とした創薬開発を目指して2022

    • Author(s)
      小林拓也
    • Organizer
      第96回日本薬理学会年会
    • Related Report
      2022 Research-status Report
  • [Presentation] クライオ電子顕微鏡によるプロスタグランジン受容体/Gタンパク質複合体の構造解析2021

    • Author(s)
      小林拓也
    • Organizer
      創薬等ライフサイエンス研究支援基盤事業令和3年度BINDS公開シンポジウム
    • Related Report
      2021 Research-status Report
    • Invited
  • [Book] 「さまざまなプロスタグランジン受容体構造から見えたシグナル伝達の分子機構」2023

    • Author(s)
      寿野 良二、清水(小林) 拓也
    • Total Pages
      427
    • Publisher
      クライオ電子顕微鏡ハンドブック
    • Related Report
      2023 Annual Research Report
  • [Book] 「プロスタグランジン受容体の構造生物学」2023

    • Author(s)
      寿野 良二、清水(小林) 拓也
    • Total Pages
      50
    • Publisher
      生物物理、63巻、1号p.16-20
    • Related Report
      2023 Annual Research Report

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Published: 2021-07-13   Modified: 2025-01-30  

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