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

Mechanism of mineralocorticoid receptor-mediated regulation of GLP-1 secretion and chronic inflammation in pancreatic islet cells

Research Project

Project/Area Number 17K09837
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Metabolomics
Research InstitutionKumamoto University

Principal Investigator

Goto Rieko  熊本大学, 病院, 病院教員 (80748020)

Co-Investigator(Kenkyū-buntansha) 近藤 龍也  熊本大学, 病院, 講師 (70398204)
荒木 栄一  熊本大学, 大学院生命科学研究部(医), 教授 (10253733)
Project Period (FY) 2017-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords鉱質コルチコイド受容体 / 膵α細胞 / GLP-1 / IL-6 / 鉱質コルチコイド / 活性型GLP-1 / エプレレノン / 内科
Outline of Final Research Achievements

MR gene and IL-6 gene expression increased and culture supernatant GLP-1 levels increased in the group of pancreatic alpha cell lines treated with eplerenone. Inhibition of MR gene expression by small interfering RNA (siRNA) suppressed the increase in IL-6 gene expression induced by eplerenone. Activation of the IL-6 gene promoter by eplerenone required the MR binding element (MRE) sequence on the promoter.
Active GLP-1 levels in patients with primary aldosteronism were significantly increased by eplerenone treatment.
MR in pancreatic alpha cells may bind to the MRE on the IL-6 promoter to induce IL-6 expression and affect glucose metabolism via GLP-1 secretion.

Academic Significance and Societal Importance of the Research Achievements

本研究は原発性アルドステロン症における耐糖能障害の発症機序を解明し、アルドステロン阻害薬の膵保護作用のメカニズムを解明することを目的とした。本研究は、原発性アルドステロン症における耐糖能障害の主因がアルドステロンによる膵島の慢性炎症であること、アルドステロン阻害薬の膵保護作用は膵α細胞の鉱質コルチコイド受容体を介したGLP-1分泌調節機構により発揮されることを解明した。本研究は、原発性アルドステロン症に限らず、レニンーアルドステロン系の亢進した高血圧症患者の新たな糖尿病発症予防、糖尿病進展予防につながるものである。

Report

(5 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (4 results)

All 2020 2019

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (3 results)

  • [Journal Article] Mineralocorticoid Receptor May Regulate Glucose Homeostasis through the Induction of Interleukin-6 and Glucagon-Like peptide-1 in Pancreatic Islets2019

    • Author(s)
      Goto Rieko、Kondo Tatsuya、Ono Kaoru、Kitano Sayaka、Miyakawa Nobukazu、Watanabe Takuro、Sakaguchi Masaji、Sato Miki、Igata Motoyuki、Kawashima Junji、Motoshima Hiroyuki、Matsumura Takeshi、Shimoda Seiya、Araki Eiichi
    • Journal Title

      Journal of Clinical Medicine

      Volume: 8 Issue: 5 Pages: 674-674

    • DOI

      10.3390/jcm8050674

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] ステロイドによる耐糖能悪化に対しGLP-1受容体作動薬の有効性を検討した1例2020

    • Author(s)
      後藤 理英子
    • Organizer
      日本内分泌学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 膵α細胞の鉱質コルチコイドレセプタ―は膵島におけるIL-6とGLP-1分泌を制御する2019

    • Author(s)
      後藤 理英子
    • Organizer
      第62回日本糖尿病学会年次学術集会
    • Related Report
      2019 Research-status Report
  • [Presentation] 膵α細胞の鉱質コルチコイドレセプタ―は膵島におけるIL-6とGLP-1分泌を制御する2019

    • Author(s)
      後藤理英子
    • Organizer
      第62回日本糖尿病学会年次学術集会
    • Related Report
      2018 Research-status Report

URL: 

Published: 2017-04-28   Modified: 2022-01-27  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi