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The role of endoplasmic reticulum sensor ATF6beta in diabetes and obesity

Research Project

Project/Area Number 20K08909
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 54040:Metabolism and endocrinology-related
Research InstitutionThe University of Tokushima

Principal Investigator

MIYAKE Masato  徳島大学, 先端酵素学研究所, 准教授 (30588976)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords肥満 / 糖尿病 / 小胞体 / ATF6 / 肝臓 / 転写因子 / 小胞体ストレス / 代謝
Outline of Research at the Start

本研究では肥満・糖尿病における種々の代謝調節組織の細胞で生じる小胞体ストレスの病態増悪化機構について転写制御に着目して解明を目指す。特に小胞体ストレス応答性転写因子ATF6 βに着目して、組織特異的欠損マウスの解析により作用組織を同定し次世代シーケンサーを用いた解析によりその制御機構を明らかにする。また、低分子化合物スクリーニングを行い、ATF6βの特異的阻害剤を開発して肥満・糖尿病への応用を目指す。

Outline of Final Research Achievements

This study aims to elucidate the role of endoplasmic reticulum stress sensor ATF6β in obesity and diabetes and establish the molecular basis as a therapeutic target. A previous study revealed that conventional knock out of ATF6βprevent obesity and diabetes when mice fed with a high-fat diet. We found that liver-specific knock-out of ATF6β has no obvious phenotype related to obesity and diabetes compared to control in mice. To understand the role of the ATF6 pathway, tissue-specific ATF6β, and its paralog ATF6α double knockout mice were established. Among skeletal muscle, adipose tissue, monocyte, and liver, we found that liver-specific ATF6β/ATF6α double knockout mice prevent obesity and diabetes when mice fed a high-fat diet. More studies will reveal the importance of ATF6β on obesity and diabetes and lead to the establishment of a therapeutic target.

Academic Significance and Societal Importance of the Research Achievements

小胞体ストレスは肥満や糖尿病で生じるストレスであり、創薬標的となりうることが示されている。一方で、ATF6経路の意義は十分に解明されておらず、その解明は新たな治療標的の開発につながる可能性がある。本研究によって、肝臓におけるATF6が肥満や糖尿病において重要であることが示され、今後のさらなる研究により新規の治療標的となりうるだけでなく、生物学的意義がまだ十分にわかっていないATF6経路の分子機構に迫ることができる。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (9 results)

All 2022 2021 2020 Other

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

  • [Int'l Joint Research] Karolinska Institute(スウェーデン)

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Identification of an endoplasmic reticulum proteostasis modulator that enhances insulin production in pancreatic β cells2022

    • Author(s)
      Miyake Masato、Sobajima Mitsuaki、Kurahashi Kiyoe、Shigenaga Akira、Denda Masaya、Otaka Akira、Saio Tomohide、Sakane Naoki、Kosako Hidetaka、Oyadomari Seiichi
    • Journal Title

      Cell Chemical Biology

      Volume: 7 Issue: 6 Pages: 996-1009

    • DOI

      10.1016/j.chembiol.2022.01.002

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The multifaceted role of ATF4 in regulating glucose-stimulated insulin secretion2022

    • Author(s)
      Sobajima Mitsuaki、Miyake Masato、Hamada Yoshimasa、Tsugawa Kazue、Oyadomari Miho、Inoue Ryota、Shirakawa Jun、Arima Hiroshi、Oyadomari Seiichi
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 611 Pages: 165-171

    • DOI

      10.1016/j.bbrc.2022.04.038

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Generation of mega brown adipose tissue in adults by controlling brown adipocyte differentiation in vivo2022

    • Author(s)
      Du Qiqiao、Wu Jieyu、Fischer Carina、Seki Takahiro、Jing Xu、Gao Juan、He Xingkang、Hosaka Kayoko、Tong Le、Yasue Akihiro、Miyake Masato、Sobajima Mitsuaki、Oyadomari Seiichi、Sun Xiaoting、Yang Yunlong、Zhou Qinjun、Ge Minghua、Tao Wei、Yao Shuzhong、Cao Yihai
    • Journal Title

      Proceedings of the National Academy of Sciences

      Volume: 119 Issue: 40

    • DOI

      10.1073/pnas.2203307119

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The ATF6β-calreticulin axis promotes neuronal survival under endoplasmic reticulum stress and excitotoxicity2021

    • Author(s)
      Nguyen Dinh Thi、Le Thuong Manh、Hattori Tsuyoshi、Takarada-Iemata Mika、Ishii Hiroshi、Roboon Jureepon、Tamatani Takashi、Kannon Takayuki、Hosomichi Kazuyoshi、Tajima Atsushi、Taniuchi Shusuke、Miyake Masato、Oyadomari Seiichi、Tanaka Takashi、Kato Nobuo、Saito Shunsuke、Mori Kazutoshi、Hori Osamu
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 13086-13086

    • DOI

      10.1038/s41598-021-92529-w

    • NAID

      120007142194

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effective three‐dimensional culture of hepatocyte‐like cells generated from human adipose‐derived mesenchymal stem cells2021

    • Author(s)
      Saito Yu、Ikemoto Tetsuya、Tokuda Kazunori、Miyazaki Katsuki、Yamada Shinichiro、Imura Satoru、Miyake Masato、Morine Yuji、Oyadomari Seiichi、Shimada Mitsuo
    • Journal Title

      Journal of Hepato-Biliary-Pancreatic Sciences

      Volume: 28 Issue: 9 Pages: 705-715

    • DOI

      10.1002/jhbp.1024

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Integrated stress response regulates GDF15 secretion from adipocytes, preferentially suppresses appetite for a high-fat diet and improves obesity2021

    • Author(s)
      Miyake Masato、Zhang Jun、Yasue Akihiro、Hisanaga Satoshi、Tsugawa Kazue、Sakaue Hiroshi、Oyadomari Miho、Kiyonari Hiroshi、Oyadomari Seiichi
    • Journal Title

      iScience

      Volume: 24 Issue: 12 Pages: 103448-103448

    • DOI

      10.1016/j.isci.2021.103448

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 膵β細胞において小胞体ストレスを軽減しインスリン合成を促進する新規化合物の同定2022

    • Author(s)
      三宅 雅人、傍島 光昭、倉橋 清衛、重永 章、傳田 将也、大髙 章、齋尾 智英、小迫 英尊、親泊 政一
    • Organizer
      第65回日本糖尿病学会年次学術集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 小胞体ストレス応答による 細胞自律的・非自律的代謝制御2020

    • Author(s)
      三宅 雅人、親泊 政一
    • Organizer
      第93回日本生化学会大会
    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2024-01-30  

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