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Investigating compounds that act on interglomerular crosstalk in diabetic nephropathy.

Research Project

Project/Area Number 19K08729
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 53040:Nephrology-related
Research InstitutionKumamoto University

Principal Investigator

Mizumoto Teruhiko  熊本大学, 大学院生命科学研究部(医), 助教 (80749193)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
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)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords糖尿病性腎症 / エクソソーム / エクソソーム阻害薬 / 糸球体障害
Outline of Research at the Start

慢性腎臓病(CKD)の患者数は増加しており、中でも糖尿病性腎臓病(DKD)から末期腎不全へ移行する患者の抑制が課題である。本研究ではメサンギウム-マクロファージ細胞間クロストークを介した慢性炎症の機序を明らかにし、治療応用を目指す。高糖濃度条件下メサンギウム細胞培養上清中のエクソソームはマクロファージの炎症を強く誘導することが確認され、DKD進展に寄与する可能性がある。本機序を効果的に抑制できる化合物スクリーニングし、有効な化合物の同定を行い、糖尿病性腎症モデルマウスに投与することで、新たなDKD進展の機序を明らかにするとともに、新規治療薬への応用を探る。

Outline of Final Research Achievements

We focused on Compound X, an HSP-90 inhibitor screened from the drug library, and administered it to streptozocin (STZ) rats, a model of diabetic nephropathy, to examine its efficacy in inhibiting the progression of nephropathy. The results showed that Compound X predominantly inhibited the progression of nephropathy in STZ rats. However, the inhibition of exosome uptake by HSP90 inhibitors could not be fully verified. Therefore, we investigated HSP-90 in renal glomerular cells using the cRNA-seq database and found that HSP-90 is strongly expressed in glomerular component cells such as mesangial cells. This suggested that HSP90 inhibitors may also act directly on renal glomeruli.

Academic Significance and Societal Importance of the Research Achievements

糖尿病性腎症による腎症進展は治療薬がレニン・アンジオテンシン系阻害薬、最近有効性が明らかになったSGLT2阻害薬などに限定されている。本研究のエクソソーム阻害による新たな機序は病態的意義を検討した報告は腎領域でも散見されるが、本機序をターゲットとした治療については報告が認められていない。既存薬ライブラリーから選出した化合物Xは糖尿病性腎症ラットの腎症進展を抑制していたため、新しい機序の糖尿病性腎症の治療薬へ繋がる可能性がある。

Report

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

    (9 results)

All 2021 2020 2019

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 4 results) Presentation (5 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] A serine protease inhibitor camostat mesilate prevents podocyte apoptosis and attenuates podocyte injury in metabolic syndrome model rats2021

    • Author(s)
      Mizumoto Teruhiko、Kakizoe Yutaka、Nakagawa Terumasa、Iwata Yasunobu、Miyasato Yoshikazu、Uchimura Kohei、Adachi Masataka、Deng Qinyuan、Hayata Manabu、Morinaga Jun、Miyoshi Taku、Izumi Yuichiro、Kuwabara Takashige、Sakai Yoshiki、Tomita Kimio、Kitamura Kenichiro、Mukoyama Masashi
    • Journal Title

      Journal of Pharmacological Sciences

      Volume: 146 Issue: 4 Pages: 192-199

    • DOI

      10.1016/j.jphs.2021.04.003

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Suppressed ER-associated degradation by intraglomerular cross talk between mesangial cells and podocytes causes podocyte injury in diabetic kidney disease.2020

    • Author(s)
      Fujimoto D, Kuwabara T, Hata Y, Umemoto S, Kanki T, Nishiguchi Y, Mizumoto T, Hayata M, Kakizoe Y, Izumi Y, Takahashi S, Mukoyama M.
    • Journal Title

      FASEB J

      Volume: 34 Issue: 11 Pages: 854-860

    • DOI

      10.1096/fj.202000078rr

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] The predictive role of serum calprotectin on mortality in hemodialysis patients with high phosphoremia2020

    • Author(s)
      Kanki Tomoko、Kuwabara Takashige、Morinaga Jun、Fukami Hirotaka、Umemoto Shuro、Fujimoto Daisuke、Mizumoto Teruhiko、Hayata Manabu、Kakizoe Yutaka、Izumi Yuichiro、Tajiri Saeko、Tajiri Tetsuya、Kitamura Kenichiro、Mukoyama Masashi
    • Journal Title

      BMC Nephrology

      Volume: 21 Issue: 1 Pages: 158-158

    • DOI

      10.1186/s12882-020-01812-x

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Circulating angiopoietin-like protein 2 levels and mortality risk in patients receiving maintenance hemodialysis: a prospective cohort study2019

    • Author(s)
      Morinaga J, Kakuma T, Fukami H, Hayata M, Uchimura K, Mizumoto T, Kakizoe Y, Miyoshi T, Shiraishi N, Adachi M, Izumi Y, Kuwabara T, Okadome Y, Sato M, Horiguchi H, Sugizaki T, Kadomatsu T, Miyata K, Tajiri S, Tajiri T, Tomita K, Kitamura K, Oike Y, Mukoyama M.
    • Journal Title

      Nephrology Dialysis Transplantation

      Volume: 印刷中 Issue: 5 Pages: 854-860

    • DOI

      10.1093/ndt/gfz236

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 糖尿病においてメサンギウム細胞との細胞連関がポドサイトの正常な小胞体関連分解を阻害し腎症を進展させる2020

    • Author(s)
      藤本 大介, 桑原 孝成, 秦 雄介, 梅本 周朗, 神吉 智子, 西口 佳彦, 水本 輝彦, 早田 学, 泉 裕一郎, 柿添 豊, 向山 政志
    • Organizer
      第63回日本腎臓学会学術集会
    • Related Report
      2020 Research-status Report
  • [Presentation] 糖尿病性腎臓病進展に果たすメサンギウム ポドサイト連関による小胞体関連分解(ERAD)不全の意義2020

    • Author(s)
      藤本 大介, 桑原 孝成, 秦 雄介, 梅本 周朗, 神吉 智子, 西口 佳彦, 水本 輝彦, 早田 学, 泉 裕一郎, 柿添 豊, 向山 政志
    • Organizer
      第57回日本臨床分子医学会
    • Related Report
      2020 Research-status Report
  • [Presentation] 糖尿病においてメサンギウム細胞との細胞連関がポドサイトの正常な小胞体関連分解を阻害し腎症を悪化させる2019

    • Author(s)
      藤本 大介, 桑原 孝成, 秦 雄介, 梅本 周朗, 神吉 智子, 西口 佳彦, 水本 輝彦, 早田 学, 泉 裕一郎, 柿添 豊, 向山 政志
    • Organizer
      第62回日本腎臓学会学術集会
    • Related Report
      2019 Research-status Report
  • [Presentation] Intraglomerular Cross-Talk Between Mesangial Cells and Podocytes Inhibits Normal Endoplasmic Reticulum-Associated Degradation Processes and Induces Podocyte Injury in Diabetes2019

    • Author(s)
      Daisuke Fujimoto, Takashige Kuwabara, Yusuke Hata, Shuro Umemoto, Tomoko Kanki, Yoshihiko Nishiguchi, Teruhiko Mizumoto, Manabu Hayata, Yuichiro Izumi, Yutaka Kakizoe, Masashi Mukoyama
    • Organizer
      American Society of Nephrology, Kidney Week 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] The Predictive Role of Serum MRP8/14 (S100A8/A9) on Mortality in Hemodialysis Patients2019

    • Author(s)
      Tomoko Kanki, Takashige Kuwabara, Jun Morinaga, Hirotaka Fukami, Shuro Umemoto, Daisuke Fujimoto, Teruhiko Mizumoto, Manabu Hayata, Yutaka Kakizoe, Yuichiro Izumi, Masashi Mukoyama.
    • Organizer
      American Society of Nephrology, Kidney Week 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research

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Published: 2019-04-18   Modified: 2023-01-30  

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