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Discovery of INSL7 analogue with agonistic activity for RXFP3 in the brai

Research Project

Project/Area Number 16K08332
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Drug development chemistry
Research InstitutionKobe Gakuin University

Principal Investigator

Hojo Keiko  神戸学院大学, 薬学部, 助教 (20289028)

Co-Investigator(Kenkyū-buntansha) 津田 裕子  神戸学院大学, 薬学部, 教授 (10098478)
日高 興士  神戸学院大学, 薬学部, 講師 (30445960)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywordsペプチドアナログ / インスリンファミリー / GPCR / ステープルペプチド / ヘリックス / 神経ペプチド / ペプチド合成 / リラキシン / アゴニスト / アンタゴニスト / ペプチド固相合成 / モダリティー / PPI / リラキシンスーパーファミリー / ステープルヘリックス / 二次構造 / CD / 肥満 / 薬学 / 脳・神経 / 有機化学
Outline of Final Research Achievements

Relaxin-3 is a two-chain neuropeptide that plays a key role in stress responses, arousal and affective behaviors through interaction with RXFP3 that is highly expressed in the brain. From detailed structure-activity relationship studies together with the known tertiary structure of relaxin-3 and molecular modeling of the RXFP3-relaxin-3 complex, the central B-chain α-helical region of relaxin-3 is essential for the binding to RXFP3 as it contains several key residues. The C-terminal residues are critical for activation of RXFP3. Although all the critical residues are located within the B-chain, the native relaxin-3 B-chain alone displays only weak agonistic activity at RXFP3 probably due to loss of the native helical binding conformation when separated from the stabilizing A-chain. In this study we applied this stapling system to stabilize the α-helix of single B-chain and showed that it mimics the native conformation of B-chain and possesses potent RXFP3 agonist activity.

Academic Significance and Societal Importance of the Research Achievements

リラキシン-3は、インスリンスーパーファミリーに属ている神経ペプチドの一つである。このスーパーファミリーに属するペプチドの構造改変はあまり研究がなされてこなかった。その理由は、二本鎖の中分子であるが故に、低分子化、改変分子におけるNativeコンフォメーションの再現に困難が伴うからである。しかし、リラキシン-3をB鎖のみのステープルペプチドとすると、その合成は容易となり改変も可能である。更には、多分子間相互作用を狙った二価性、三価性のアナログ等の創製も可能となる。このような高機能なペプチド性医薬品の投入は、規模を拡大し続けている精神疾患の創薬マーケットにインパクトを持って迎えらえるはずである。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (17 results)

All 2019 2018 2017 2016 Other

All Int'l Joint Research (2 results) Journal Article (6 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 5 results,  Open Access: 1 results,  Acknowledgement Compliant: 1 results) Presentation (8 results) (of which Int'l Joint Research: 2 results) Book (1 results)

  • [Int'l Joint Research] メルボルン大学/クイーンズランド大学(オーストラリア)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research]

    • Related Report
      2016 Research-status Report
  • [Journal Article] Design and synthesis of hydrocarbon stapling peptide antagonist for relaxin family peptide receptor 3 (RXFP3)2018

    • Author(s)
      Keiko Hojo, Mika Izutsu, Ross A. D. Bathgate, K Johan Rosengern, Koushi Hidaka, Yuko Tsuda, Mohammad Akhter Hossain, John D. Wade
    • Journal Title

      Peptide Science 2017

      Volume: 54 Pages: 148-149

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Design and synthesis of hydrocarbon stapling peptide antagonist for relaxin family peptide receptor 3 (RXFP3)2018

    • Author(s)
      Keiko Hojo, Mika Izutsu, Ross A. D. Bathgate, K Johan Rosengern, Koushi Hidaka, Yuko Tsuda, Mohammad Akhter Hossain, John D. Wade
    • Journal Title

      Peptide Science

      Volume: 54

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Identification of dipeptidic inhibitors targeting DPP7 derived from multiple drug resistant bacteria Stenotrophomonas maltophilia2018

    • Author(s)
      Yuki Sakurai, Koushi Hidaka, Anna Miyazaki, Keiko Hojo, Saori Roppongi, Yasumitsu Sakamoto, Yasuhiro Ito, Yoshiyuki Suzuki, Wataru Ogasawara, Nobutada Tanaka, Yuko Tsuda
    • Journal Title

      Peptide Science

      Volume: 54

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Design of plasmin inhibitors with targeting the S2’ subsite2018

    • Author(s)
      Seika Sugiura, Koushi Hidaka, Keiko Hojo, Keigo Gohda, Naoki Teno, Keiko Wanaka, Yuko Tsuda
    • Journal Title

      Peptide Science

      Volume: 54

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Keiko Hojo, Hossain A. Hossain, K. Johan Rosengren, Sheri Ma, Andrew. L. Gundlach, Yuko Tsuda, Koushi Hidaka, R. A. D. Bathgate, John D. Wade. Design, synthesis and biological activity of hydrocarbon stapled single-chain relaxin-3 analogue.2017

    • Author(s)
      Keiko Hojo, Hossain A. Hossain, K. Johan Rosengren, Sheri Ma, Andrew. L. Gundlach, Yuko Tsuda, Koushi Hidaka, R. A. D. Bathgate, John D. Wade
    • Journal Title

      Peptides

      Volume: 34 Pages: 148-149

    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Journal Article] Development of a Single-Chain Peptide Agonist of the Relaxin‐3 Receptor Using Hydrocarbon Stapling2016

    • Author(s)
      Keiko Hojo, Mohammed Akhter Hossain, Julien Tailhades, Fazel Shabanpoor, LilianL.L.Wong, EmmaE.K.Ong-Palsson, HannaE.Kastman, SherieMa, AndrewL.Gundlach, K. Johan Rosengren, John D. Wade, and Ross A. D. Bathgate
    • Journal Title

      Journal of Medicinal Chemistry

      Volume: 59 Issue: 16 Pages: 7445-7456

    • DOI

      10.1021/acs.jmedchem.6b00265

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Presentation] Relaxin-2 B鎖のステープルアナログの設計と合成2019

    • Author(s)
      福本哲也、北條恵子、日高興士、屋山勝俊、津田裕子
    • Organizer
      日本薬学会139年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Relaxin-3アゴニストの合成とアゴニストの一過性脳虚血モデルにおける脳保護作用2018

    • Author(s)
      相坂洋平、北條恵子、原田慎一、日高興士、徳山尚吾、津田裕子
    • Organizer
      日本薬学会138年会
    • Related Report
      2017 Research-status Report
  • [Presentation] X-線結晶構造に基づく多剤耐性菌由来DPP-7阻害剤の設計と評価―国際宇宙ステーションで抗菌薬を開発する2018

    • Author(s)
      関拓海、奥野優香、櫻井有紀、日高興士、宮崎杏奈、北條恵子、六本木沙織、阪本康広、鈴木義之、小笠原渉、田中信忠、木平清人、山田貢、吉崎泉、田仲広明、伊中浩治、津田裕子
    • Organizer
      日本薬学会138年会
    • Related Report
      2017 Research-status Report
  • [Presentation] Design and synthesis of hydrocarbon stapling peptide antagonist for relaxin family peptide receptor 3 (RXFP3)2017

    • Author(s)
      Keiko Hojo, Mika Izutsu, Ross A. D. Bathgate, K Johan Rosengern, Koushi Hidaka, Yuko Tsuda, Mohammad Akhter Hossain, John D. Wade
    • Organizer
      The 54th Japanese Peptide Symposium
    • Related Report
      2017 Research-status Report
  • [Presentation] Identification of dipeptidic inhibitors targeting DPP7 derived from multiple drug resistant bacteria Stenotrophomonas maltophilia2017

    • Author(s)
      Yuki Sakurai, Koushi Hidaka, Anna Miyazaki, Keiko Hojo, Saori Roppongi, Yasumitsu Sakamoto, Yasuhiro Ito, Yoshiyuki Suzuki, Wataru Ogasawara, Nobutada Tanaka, Yuko Tsuda
    • Organizer
      The 54th Japanese Peptide Symposium
    • Related Report
      2017 Research-status Report
  • [Presentation] Design of plasmin inhibitors with targeting the S2’ subsite2017

    • Author(s)
      Seika Sugiura, Koushi Hidaka, Keiko Hojo, Keigo Gohda, Naoki Teno, Keiko Wanaka, Yuko Tsuda
    • Organizer
      The 54th Japanese Peptide Symposium
    • Related Report
      2017 Research-status Report
  • [Presentation] Development of a single chain peptide agonist of relaxin-3 receptor: optimization of stapling strategies2016

    • Author(s)
      Keiko Hojo, Ross A. D. Bathgate, K Johan Rosengern, Andrew L Gundlach, Koushi Hidaka, Yuko Tsuda, Mohammed A. Hossain, John D. Wade
    • Organizer
      The 53rd Japanese Peptide Symposium
    • Place of Presentation
      Kyoto
    • Year and Date
      2016-10-26
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Design, synthesis and biological activity of hydrocarbon stapled single-chain relaxin-3 analogue2016

    • Author(s)
      Keiko Hojo, Mohammed A. Hossain, K. Johan Rosengren, Sheri Ma, Andrew. L. Gundlach, Yuko Tsuda, Koushi Hidaka, R. A. D. Bathgate, John D. Wade
    • Organizer
      34th European Peptide Symposium
    • Place of Presentation
      Leipzig
    • Year and Date
      2016-09-04
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Book] ペプチド創薬最前線 第23章2019

    • Author(s)
      北條恵子
    • Total Pages
      9
    • Publisher
      シーエムシー出版
    • ISBN
      9784781314174
    • Related Report
      2018 Annual Research Report

URL: 

Published: 2016-04-21   Modified: 2020-03-30  

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