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Research on renal protection by klotho protein supplementation

Research Project

Project/Area Number 20K08641
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 53040:Nephrology-related
Research InstitutionInternational University of Health and Welfare

Principal Investigator

Takenaka Tsuneo  国際医療福祉大学, 医学部, 教授 (90179656)

Co-Investigator(Kenkyū-buntansha) アリフ・ウル ハサン  国際医療福祉大学, 医学部, 助教 (00570368)
西山 成  香川大学, 医学部, 教授 (10325334)
宮崎 孝  埼玉医科大学, 医学部, 客員准教授 (30265417)
丸茂 丈史  国際医療福祉大学, 医学部, 教授 (70265817)
石井 直仁  北里大学, 医療衛生学部, 教授 (80212819)
宮崎 利明  埼玉医科大学, 医学部, 講師 (50589075)
Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
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: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywordsクロト
Outline of Research at the Start

片側尿管閉塞では骨形成因子(BMP)7やmesenchymal epithelial transitionなどについてクロト蛋白補充の腎保護効果機序として検討し、遠位尿細管細胞でクロトとBMP7の関係を明らかにする。
原発性アルドステロン症では尿細管老化とSirtuin等についてクロト蛋白補充の腎保護機序として評価し、近位尿細管細胞でクロトとSirtuinの関係を精査する。
ループス腎炎では糸球体transient receptor potential channel(TRPC)6、ネフリン、ポドサイトのautophagy等について精査し、クロト蛋白のTRPC6への直接的抑制効果も検討する。

Outline of Final Research Achievements

Supplementation of exogenous klotho protein reduced systolic blood pressure, albuminuria, 8-epi-prostaglandin F2α excretion, glomerular filtration rate, renal angiotensin II concentration, and angiotensinogen expression in HIGA mice (p<0.05 for all). Additionally, it enhanced renal expression of superoxide dismutase and renal klotho itself (p<0.05 for all).
Klotho protein supplementation decreased albuminuria, systolic blood pressure, fibroblast growth factor 23 and serum phosphate levels, renal angiotensin II concentration, fibrosis index, renal expressions of collagen I and transforming growth factor β(p<0.05 for all). Klotho supplementation enhanced fractional excretion of phosphate, glomerular filtration rate, renal expressions of klotho, superoxide dismutase and bone morphogenetic protein 7 (p<0.05 for all).

Academic Significance and Societal Importance of the Research Achievements

IgA腎症も全ての腎疾患の最終像である進行性腎疾患も現在まで有効な治療法が確立していない疾患群で、透析導入も高率であり、unmet needが高い。
今回の結果は、IgA腎症モデルマウスと進行性腎疾患モデルである腎亜全摘ラットでクロト蛋白補充の有用性を示した。
安全性について更に検討する必要があるが、これらの研究は、将来の臨床研究に向けて基礎的なデータを提供できたものと考えられる。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (28 results)

All 2023 2022 2021 2020

All Journal Article (8 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 8 results,  Open Access: 5 results) Presentation (17 results) (of which Int'l Joint Research: 8 results) Book (3 results)

  • [Journal Article] Klotho supplementation reverses renal dysfunction and interstitial fibrosis in remnant kidney.2023

    • Author(s)
      Takenaka Tsuneo、Hasan Arif、Marumo Takeshi、Inoue Tsutomu、Miyazaki Takashi、Suzuki Hiromichi、Kurosaki Yoshifumi、Ishii Naohito、Nishiyama Akira、Hayashi Matsuhiko
    • Journal Title

      Kidney and Blood Pressure Research

      Volume: 1 Issue: 1 Pages: 1-1

    • DOI

      10.1159/000530469

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Central and brachial pulse pressure predicts cardiovascular and renal events in treated hypertensive patients2022

    • Author(s)
      Takenaka T, Ohno Y, Eguchi K, Miyashita H, Suzuki H, Shimada Y.
    • Journal Title

      Blood Pressure

      Volume: 31 Issue: 1 Pages: 1-8

    • DOI

      10.1080/08037051.2022.2062295

    • Related Report
      2022 Research-status Report 2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] In vitro study on effect of bardoxolone methyl on cisplatin-induced cellular senescence in human proximal tubular cells.2022

    • Author(s)
      Kurosaki Y, Imoto A, Kawakami F, Ouchi M, Morita A, Yokoba M, Takenaka T, Ichikawa T, Katagiri M, Nielsen R, Ishii N.
    • Journal Title

      Mol Cell Biochem.

      Volume: 477 Issue: 3 Pages: 689-699

    • DOI

      10.1007/s11010-021-04295-y

    • Related Report
      2022 Research-status Report 2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Klotho supplementation attenuates blood pressure and albuminuria in murine model of IgA nephropathy2021

    • Author(s)
      Takenaka Tsuneo、Hasan Arif、Marumo Takeshi、Kobori Hiroyuki、Inoue Tsutomu、Miyazaki Takashi、Suzuki Hiromichi、Nishiyama Akira、Ishii Naohito、Hayashi Matsuhiko
    • Journal Title

      Journal of Hypertension

      Volume: Publish Ahead of Print Issue: 8 Pages: 1-10

    • DOI

      10.1097/hjh.0000000000002845

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Flaxseed oil stimulates gynecomastia2020

    • Author(s)
      Takenaka Tsuneo、Nagano Mayuko、Yamashita Koji、Kikuchi Kiyoshi
    • Journal Title

      BMJ Case Reports

      Volume: 13 Issue: 12 Pages: e237948-e237948

    • DOI

      10.1136/bcr-2020-237948

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Klotho supplementation ameliorates blood pressure and renal function in DBA/2-pcy mice, a model of polycystic kidney disease.2020

    • Author(s)
      Takenaka T, Kobori H, Inoue T, Takashi Miyasaki T,Suzuki H, Nishiyama H, Ishii N, Hayashi M
    • Journal Title

      Am J Physiol Renal Physiol

      Volume: 316 Issue: 3 Pages: F557-F564

    • DOI

      10.1152/ajprenal.00299.2019

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Symptomatic hyponatremia: a rare but reversible adverse reaction of lubiprostone2020

    • Author(s)
      Takenaka Tsuneo、Zeniya Mikio、Miura Soichiro、Amano Takahiro
    • Journal Title

      BMJ Case Reports

      Volume: 13 Issue: 3 Pages: e232438-e232438

    • DOI

      10.1136/bcr-2019-232438

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] The management of polycystic liver disease by tolvaptan2020

    • Author(s)
      Takenaka Tsuneo、Miura Soichiro、Kitajima Masaki
    • Journal Title

      Clinical and Molecular Hepatology

      Volume: 26 Issue: 1 Pages: 70-73

    • DOI

      10.3350/cmh.2019.0026

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] Klotho deficiency induces regulatory T cells in murine lupus nephritis2023

    • Author(s)
      Tsuneo Takenaka, Naohito Ishii, Yoshifumi Kurosaki, Tsutomu Inoue, Takashi Miyazaki, Akira Nishiyama, Matsuhiko Hayashi
    • Organizer
      欧州腎臓学会
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 治療中の高血圧患者において,中心脈圧は心血管イベントの,上腕血圧は腎イベントの予見に優れる2023

    • Author(s)
      竹中 恒夫, 大野 洋一, 鈴木 洋通, 江口 和夫, 宮下 洋, 島田 和幸
    • Organizer
      日本腎臓学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] KLOTHO SUPPLEMENTATION REVERSES RENAL DYSFUNCTION AND INTERSTITIAL FIBROSIS IN REMNANT KIDNEY2022

    • Author(s)
      Tsuneo Takenaka, Arif Hasan, Takeshi Marumo, Tsutomu Inoue, Takashi Miyazaki, Hiromichi Suzuki, Yoshifumi Kurosaki, Naohito Ishii, Akira Nishiyama, Matsuihiko Hayashi
    • Organizer
      ERA-EDTA Congress
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] クロトが骨形成蛋白質7の発現に与える影響2022

    • Author(s)
      竹中 恒夫, 丸茂 丈史, Hasan Arif
    • Organizer
      日本腎臓学会学術総会
    • Related Report
      2022 Research-status Report
  • [Presentation] Central and brachial pulse pressure predicts cardiovascular and renal events in treated hypertensive patients.2022

    • Author(s)
      Tsuneo Takenaka, Yoichi Ohno, Kazuo Eguchi, Hiroshi Miyashita, Hiromichi Suzuki, Kazuyuki Shimada
    • Organizer
      EUROPEAN MEETING ON HYPERTENSION AND CARDIOVASCULAR PROTECTION
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 人間ドックデータにおけるeGFRの短期的変化に影響する因子の検討2022

    • Author(s)
      中澤 亜衣, 荒井 孝子, 武田 英孝, 東野 定律, 竹中 恒夫, 池田 俊也, 青萩 陽子, 天野 隆弘
    • Organizer
      日本人間ドック学会学術大会
    • Related Report
      2022 Research-status Report
  • [Presentation] Klotho deficiency induces regulatory T cells in murine lupus nephritis.2022

    • Author(s)
      Tsuneo Takenaka, Yishifumi Kurosaki, Naohito Ishii, Tsutomu Inoue, Akira Nishiyama
    • Organizer
      Kidney Week 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 中心脈圧は心血管イベントの、上腕血圧は腎イベントの予見に優れる2021

    • Author(s)
      竹中 恒夫、大野 洋一、江口 和男、宮下 洋、鈴木 洋通、島田 和幸
    • Organizer
      臨床高血圧フォーラム
    • Related Report
      2021 Research-status Report
  • [Presentation] クロト蛋白補充は腎亜全摘モデルにおける腎障害を抑制する2021

    • Author(s)
      竹中 恒夫、井上 勉、西山 成、石井 直仁、林 松彦
    • Organizer
      日本腎臓学会
    • Related Report
      2021 Research-status Report
  • [Presentation] ドック健診の健常者データから分析したeGFR低下に関わる因子2021

    • Author(s)
      荒井 孝子、武田 英孝、東野 定律、Babayev Tamerlan、竹中 恒夫、池田 俊也、青萩 陽子、天野 隆弘
    • Organizer
      人間ドック学会
    • Related Report
      2021 Research-status Report
  • [Presentation] Mitophagy-related renal and proximal tubular protenction during the microalbuminuric stage of diabetes mellitus2021

    • Author(s)
      Ishii N, Carmines PK, Kurosaki Y, Imoto A, Ikenaga H, Yokoba M, Ichikawa T, Takenaka T, Katagiri M.
    • Organizer
      Kidney Week 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 近位尿細管における脂肪酸結合アルブミン負荷は過剰な細胞増殖を介して細胞老化を促進する2021

    • Author(s)
      黒崎 祥史、井本 明美、森田 亜州華、大内 基司、川上 文貴、市川 尊文、横場 正典、片桐 真人、竹中 恒夫、石井 直仁
    • Organizer
      日本臨床化学会
    • Related Report
      2021 Research-status Report
  • [Presentation] クロト補充は多発性嚢胞腎モデルで血圧と腎機能を改善する2020

    • Author(s)
      竹中 恒夫, 小堀 浩幸, 井上 勉, 宮崎 孝, 鈴木 洋通, 西山 成, 石井 直仁, 林 松彦
    • Organizer
      日本腎臓学会学術集会
    • Related Report
      2020 Research-status Report
  • [Presentation] Effect of regulated intramembrane proteolysis on megalin expression during oxidative stress exposure2020

    • Author(s)
      Kurosaki Y, Ikarashi F, Imoto A, Kawakami F, Yokoba M, Takenaka T, Katagiri M, Ichikawa T, Nielsen R, Ishii N
    • Organizer
      ERA-EDTA
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] クロトが骨形成蛋白質7の発現に与える影響2020

    • Author(s)
      竹中 恒夫, Hasan Arif, 宮崎 孝, 石井 直仁, 丸茂 丈史
    • Organizer
      国際医療福祉大学学会
    • Related Report
      2020 Research-status Report
  • [Presentation] Mitochondrial Quality Control Mechanisms in Renal Cortex During the Normoalbuminuric Stage of Diabetes Mellitus.2020

    • Author(s)
      Ishii N, Carmines PK, Kurosaki Y, Imoto A, Ikenaga H, Yokoba M, Ichikawa T, Takenaka T, Katagiri M.
    • Organizer
      Kidney Week 2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Findings showed by chest CT examination under the spread of COVID-19.2020

    • Author(s)
      Furukawa Y, Kodama K, Ohto M, Takeda H, Kayashima Y, Takenaka T, Kawai Y, Zeniya M, Yamanaka H, Amano T.
    • Organizer
      第27回国際健診学会・第4回国際人間ドック会議 合同会議
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Book] カレントテラピー2022

    • Author(s)
      竹中 恒夫
    • Total Pages
      6
    • Publisher
      ライフメディコム
    • Related Report
      2022 Research-status Report
  • [Book] 日本医事新報2022

    • Author(s)
      竹中 恒夫
    • Total Pages
      2
    • Publisher
      日本医事新報社
    • Related Report
      2022 Research-status Report
  • [Book] 循環器疾患 モデル動物の作製と利用2021

    • Author(s)
      竹中 恒夫
    • Total Pages
      411
    • Publisher
      エルアイシー
    • ISBN
      9784900487598
    • Related Report
      2021 Research-status Report

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Published: 2020-04-28   Modified: 2025-01-30  

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