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The mechanisms of Galectin3-induced stem cell dysfunction and the effects of anti-galectin3 therapy

Research Project

Project/Area Number 19H03378
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 47040:Pharmacology-related
Research InstitutionTottori University

Principal Investigator

IMAMURA Takeshi  鳥取大学, 医学部, 教授 (00552093)

Co-Investigator(Kenkyū-buntansha) 土屋 英明  滋賀医科大学, 動物生命科学研究センター, 技術専門職員 (10378440)
上田 悦子  鳥取大学, 医学部, 講師 (40335526)
三明 淳一朗  鳥取大学, 医学部, 准教授 (40372677)
伊藤 靖  滋賀医科大学, 医学部, 教授 (90324566)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2021: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2020: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2019: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
Keywords幹細胞機能 / galectin-3 / 糖尿病 / 細胞分化 / インスリン抵抗性 / Galectin-3 / 糖尿病合併症 / 幹細胞 / 幹細胞障害 / galectn-3
Outline of Research at the Start

糖尿病合併症に対する治療薬開発の標的として、我々はインスリン抵抗性因子Galectin-3が生体内幹細胞機能障害を惹起する可能性を見出した。この新知見を手掛かりとして、本研究計画ではGalectin-3による幹細胞障害機序を解明することを第一の目的とする。Galectin-3抑制薬による幹細胞障害改善効果の検証を含めて、得られる成果は糖尿病合併症に対する革新的な治療薬開発につながる可能性を有しており、さらには再生医療研究分野にも大きなインパクトがあると考える。

Outline of Final Research Achievements

At present, we have almost no medicine for diabetic complications, such as diabetic retinopathy and nephropathy, although many studies have been performed to dissolve this problem for a long time. In this study, we hypothesized that galectin-3, an insulin resistance-related factor, damaged stem cell function including proliferation and differentiation, leading to the cause and/or progress of diabetic complications. Here we showed that the continuous infusion of galectin-3 into mice damaged a differentiation process from stem cells, but not proliferation process, and indicated the possible mechanism that galectin-3 can modify microRNA expressions disrupting stem cell functions.

Academic Significance and Societal Importance of the Research Achievements

現在、糖尿病合併症に対する有効な治療薬は殆ど見当たらず、中でも、人工透析治療を実施している糖尿病性腎症や、失明に至る網膜症などの糖尿病合併症罹患者数は増え続けているのが実情である。本研究では、糖尿病合併症の本態が生体内幹細胞障害にあるとする仮説を検証し、インスリン抵抗性因子Galectin-3が生体内幹細胞の分化機能障害を惹起する可能性を示した。この成果を基礎として幹細胞障害治療薬開発につながれば、糖尿病合併症に対する革新的な治療が実現する可能性を有しており、さらには再生医療研究分野にも大きなインパクトがあると考える。

Report

(4 results)
  • 2022 Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (12 results)

All 2023 2022 2021 2020 2019 Other

All Journal Article (5 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 5 results,  Open Access: 5 results) Presentation (5 results) Remarks (2 results)

  • [Journal Article] Aldehyde dehydrogenase 2 polymorphism is an important gene for insulin resistance in Japanese patients with type 2 diabetes.2023

    • Author(s)
      Okura T, Nakamura R, Anno M, Ito Y, Kitao S, Endo S, Taneda N, Matsumoto K, Shoji K, Okura H, Matsuzawa K, Izawa S, Ueta E, Kato M, Imamura T, Taniguchi SI, Yamamoto K.
    • Journal Title

      Metabol Open.

      Volume: 18 Pages: 100242-100242

    • DOI

      10.1016/j.metop.2023.100242

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Significance of pancreatic duodenal homeobox-1 (PDX-1) genetic polymorphism in insulin secretion in Japanese patients with type 2 diabetes2022

    • Author(s)
      Okura Tsuyoshi、Nakamura Risa、Ito Yuichi、Kitao Sonoko、Anno Mari、Endo Satomi、Taneda Natsuka、Matsumoto Kazuhisa、Shoji Kyoko、Okura Hiroko、Matsuzawa Kazuhiko、Izawa Shoichiro、Ueta Etsuko、Kato Masahiko、Imamura Takeshi、Taniguchi Shin-ichi、Yamamoto Kazuhiro
    • Journal Title

      BMJ Open Diabetes Research and Care

      Volume: 10 Issue: 5 Pages: e002908-e002908

    • DOI

      10.1136/bmjdrc-2022-002908

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Dipeptidyl peptidase 4 inhibitor improves insulin resistance in Japanese patients with type 2 diabetes: a single-arm study, a brief report.2022

    • Author(s)
      Okura T, Fujioka Y, Nakamura R, Ito Y, Kitao S, Anno M, Matsumoto K, Shoji K, Okura H, Matsuzawa K, Izawa S, Ueta E, Kato M, Imamura T, Taniguchi SI, Yamamoto K.
    • Journal Title

      Diabetol Metab Syndr.

      Volume: 14(1) Issue: 1 Pages: 78-78

    • DOI

      10.1186/s13098-022-00850-9

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The sodium-glucose cotransporter 2 inhibitor ipragliflozin improves liver function and insulin resistance in Japanese patients with type 2 diabetes.2022

    • Author(s)
      Okura T, Fujioka Y, Nakamura R, Kitao S, Ito Y, Anno M, Matsumoto K, Shoji K, Matsuzawa K, Izawa S, Okura H, Ueta E, Kato M, Imamura T, Taniguchi SI, Yamamoto K.
    • Journal Title

      Sci Rep.

      Volume: 12(1) Issue: 1 Pages: 1896-1896

    • DOI

      10.1038/s41598-022-05704-y

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] MicroRNA-494-3p inhibits formation of fast oxidative muscle fibres by targeting E1A-binding protein p300 in human-induced pluripotent stem cells2021

    • Author(s)
      Iwasaki Hirotaka、Ichihara Yoshinori、Morino Katsutaro、Lemecha Mengistu、Sugawara Lucia、Sawano Tatsuya、Miake Junichiro、Sakurai Hidetoshi、Nishi Eiichiro、Maegawa Hiroshi、Imamura Takeshi
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 1161-1161

    • DOI

      10.1038/s41598-020-80742-y

    • NAID

      120006953800

    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] SGLT2 inhibitor reduces the inducibility and duration of atrial fibrillation in the diet-induced obese mouse model.2022

    • Author(s)
      澤野 達哉、三明 淳一朗、クルニアワン プリヨノアグン、長田佳子、今村武史
    • Organizer
      第96回日本薬理学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 骨格筋細胞分化における筋線維型決定機序の解明2022

    • Author(s)
      今村 武史、周 余航、市原 克則、森野 勝太郎、澤野 達哉、松澤 和彦、長田 佳子、櫻井 英俊、三明 淳一朗
    • Organizer
      第75回日本薬理学会西南部会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Involvement of microRNA-133a-3p with the conversion of muscle fiber type in human skeletal myogenesis.2020

    • Author(s)
      Yuhang Zhou, Yoshinori Ichihara, Hirotaka Iwasaki, Agung Kumawan Priyono, Tatsuya Sawano, Keiko Nagata, Jun-ichiro Miake, Hidetoshi Sakurai, Takeshi Imamura
    • Organizer
      日本薬理学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 高脂肪食負荷マウスにおけるクプリゾンの抗肥満作用2019

    • Author(s)
      13.瀧川和子、広瀬彩、石田健太郎、市原克則、澤野達哉、周余航、プリヨノ アグン、三明淳一朗、今村武史
    • Organizer
      第93回日本薬理学会年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 食餌負荷肥満ラットにおける心房細動の検討2019

    • Author(s)
      12.澤野達哉、三明淳一朗、岡村昌宏、友森匠也、高見亜衣子、周余航、Agung Priyono、市原克則、山本一博、今村武史
    • Organizer
      第93回日本薬理学会年会
    • Related Report
      2019 Annual Research Report
  • [Remarks] 鳥取大学医学部薬理学・薬物療法学 代謝研究

    • URL

      https://tottori-univ-medpharm.jp/menu/c912633

    • Related Report
      2020 Annual Research Report
  • [Remarks] 鳥取大学医学部薬理学・薬物療法学ホームページ(研究紹介)

    • URL

      https://tottori-univ-medpharm.jp/

    • Related Report
      2019 Annual Research Report

URL: 

Published: 2019-04-18   Modified: 2024-01-30  

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