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

Ultrastructural analysis of calcium transport system of cardiac sarcoplasmic reticulum for drug development

Research Project

Project/Area Number 17H04033
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field General pharmacology
Research InstitutionYamaguchi University

Principal Investigator

INUI Makoto  山口大学, その他部局等, 名誉教授 (70223237)

Co-Investigator(Kenkyū-buntansha) 本田 健  山口大学, 大学院医学系研究科, 講師 (30457311)
酒井 大樹  山口大学, 大学院医学系研究科, 助教 (40464367)
倉増 敦朗  山口大学, 大学院医学系研究科, 准教授 (90302091)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000)
Fiscal Year 2019: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2018: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2017: ¥8,580,000 (Direct Cost: ¥6,600,000、Indirect Cost: ¥1,980,000)
Keywords心不全治療薬 / カルシウム輸送 / ホスホランバン / 心筋小胞体 / SERCA / ナノディスク / 超微細構造解析
Outline of Final Research Achievements

The Ca2+-ATPase of sarcoplasmic reticulum (SERCA) and its regulatory membrane protein, phospholamban (PLN) play a pivotal role in regulation of heart muscle contraction and relaxation. To analyze the ultrastructure of the SERCA-PLN complex for drug design, we succeeded in reconstituting the functional SERCA-PLN system into lipid bilayers of nanodiscs. We established the methodology using these nanodiscs and cryo-electron microscopy to analyze the ultrastructure. We also examined the effects of a compound which is designed to bind PLN on the SERCA-PLN system. The compound promoted the activity of SERCA by relieving the inhibition by PLN, which enhanced the relaxation of heart muscle and then increased the contractility. It had no effect on the heart rate. The compound is thus potentially an ideal drug for treatment of heart failure.

Academic Significance and Societal Importance of the Research Achievements

心筋小胞体のホスホランバン(PLN)によるCa2+-ATPase(SERCA)の調節機構の解明は、心機能調節のメカニズムを理解する上で極めて重要である。その分子基盤の解明のためには、超微細構造の解析が必須である。これまでの結晶構造解析の研究に対し、本研究では、機能を保持したままでSERCA-PLN系の超微細構造を解析することが可能であることを示した。また、本研究は、SERCA-PLN系を標的とするようデザインした化合物が、心拍数には影響せず、弛緩を促進し収縮力を増強する理想的な心不全治療薬となり得ることを示した。有効な治療薬が望まれている心不全治療の臨床現場に貢献することが期待される。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (14 results)

All 2020 2019 2018 2017

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

  • [Journal Article] PDZRN3 protects against apoptosis in myoblasts by maintaining cyclin A2 expression2020

    • Author(s)
      Honda T, Inui M
    • Journal Title

      Scientific reports

      Volume: 10 Issue: 1 Pages: 1140-1140

    • DOI

      10.1038/s41598-020-58116-1

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] PDZRN3 regulates differentiation of myoblasts into myotubes through transcriptional and posttranslational control of Id22019

    • Author(s)
      Takeshi Honda, Makoto Inui
    • Journal Title

      Journal of Cellular Physiology

      Volume: 234 Issue: 3 Pages: 2963-2963

    • DOI

      10.1002/jcp.27113

    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Distinct Roles of Small GTPases Rac1 and Rac2 in Histamine H4Receptor?Mediated Chemotaxis of Mast Cells2018

    • Author(s)
      Kuramasu Atsuo、Wakabayashi Mie、Inui Makoto、Yanai Kazuhiko
    • Journal Title

      Journal of Pharmacology and Experimental Therapeutics

      Volume: 367 Issue: 1 Pages: 9-19

    • DOI

      10.1124/jpet.118.249706

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Long-term Functioning of Allogeneic Islets in Subcutaneous Tissue Pretreated with a Novel Cyclic Peptide without Immunosuppressive Medication2018

    • Author(s)
      Kuwabara Rei、Hamaguchi Masahide、Fukuda Takuya、Sakai Hiroki、Inui Makoto、Sakaguchi Shimon、Iwata Hiroo
    • Journal Title

      Transplantation

      Volume: 102 Issue: 3 Pages: 417-425

    • DOI

      10.1097/tp.0000000000001923

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Co-treatment with a C1B5 peptide of protein kinase Cγ and a low dose of gemcitabine strongly attenuated pancreatic cancer growth in mice through T cell activation2018

    • Author(s)
      Ishiguro Susumu、Kawabata Atsushi、Zulbaran-Rojas Alejandro、Monson Kelsey、Uppalapati Deepthi、Ohta Naomi、Inui Makoto、Pappas Charalampos G.、Tzakos Andreas G.、Tamura Masaaki
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 495 Issue: 1 Pages: 962-968

    • DOI

      10.1016/j.bbrc.2017.11.102

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A pyridone derivative activates SERCA2a by attenuating the inhibitory effect of phospholamban2017

    • Author(s)
      Kaneko Manami、Yamamoto Hisato、Sakai Hiroki、Kamada Yusuke、Tanaka Toshiki、Fujiwara Shuji、Yamamoto Syunsuke、Takahagi Hiroki、Igawa Hideyuki、Kasai Shizuo、Noda Masakuni、Inui Makoto、Nishimoto Tomoyuki
    • Journal Title

      European Journal of Pharmacology

      Volume: 814 Pages: 1-8

    • DOI

      10.1016/j.ejphar.2017.07.035

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Presentation] マスト細胞におけるヒスタミンによる低分子量G蛋白質Rac1及びRac2の活性化はカルシウム/カルモジュリンに依存する2020

    • Author(s)
      西尾 侑祐、乾 誠、倉増 敦朗
    • Organizer
      第93回日本薬理学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 筋芽細胞におけるPDZRN3蛋白質の抗アポトーシス機能2020

    • Author(s)
      本田 健、品川 右京、水野 優、横須賀 由季、乾 誠
    • Organizer
      第93回日本薬理学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] PDZRN3蛋白質はサイクリンA2を介して筋芽細胞のアポトーシスを制御する2019

    • Author(s)
      本田 健、品川 右京、水野 優、横須賀 由季、乾 誠
    • Organizer
      第72回日本薬理学会西南部会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 筋芽細胞におけるPDZRN3蛋白質のアポトーシス制御2019

    • Author(s)
      本田 健、品川 右京、水野 優、横須賀 由季、乾 誠
    • Organizer
      第92回日本薬理学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] トランスグルタミナーゼとヒスタミントランスポーターによるマスト細胞のヒスタミンH4受容体シグナル調節2019

    • Author(s)
      倉増敦朗、乾 誠
    • Organizer
      第92回日本薬理学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] PDZRN3蛋白質による筋芽細胞のアポトーシス制御2018

    • Author(s)
      本田 健、品川 右京、水野 優、横須賀 由季、乾 誠
    • Organizer
      第71回日本薬理学会西南部会
    • Related Report
      2018 Annual Research Report
  • [Presentation] PDZRN3 regulates the differentiation of myoblasts into myotubes through Id2-mediated pathway2018

    • Author(s)
      Takeshi Honda, Narumi Nakada, Ryoto Nagai, Yuki Yokosuka, Makoto Inui
    • Organizer
      18th World Congress of Basic and Clinical Pharmacology
    • Related Report
      2018 Annual Research Report
  • [Presentation] 心筋細胞内カルシウム輸送調節の分子機構と心不全治療標的2017

    • Author(s)
      乾 誠
    • Organizer
      第70回病態生理学会
    • Related Report
      2017 Annual Research Report
    • Invited

URL: 

Published: 2017-04-28   Modified: 2021-02-19  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi