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Elucidation and control of mechanism of diabetic nephropathy: an approach from cholesteryl ester accumulation

Research Project

Project/Area Number 19K07861
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 52010:General internal medicine-related
Research InstitutionHokkaido University

Principal Investigator

Hui Shu-Ping  北海道大学, 保健科学研究院, 教授 (90337030)

Project Period (FY) 2019-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords糖尿病腎症 / 脂質蓄積 / ミトコンドリア機能 / 腎不全 / 酸化ストレス / フラジン / 脂質代謝 / 脂肪滴 / Keap1-Nrf2 / 酸化 / カルジオリピン / コレステリルエステル / 腎症発症メカニズム / 糖尿病性腎症
Outline of Research at the Start

研究代表者は、糖尿病性腎症Ⅰ期患者尿において多価不飽和型コレステリルエステル(CE)が非糖尿病性腎疾患患者尿より増加することを見いだした。また、高脂肪食負荷マウスにおいて、脂肪滴(LD)が腎皮質に蓄積し、同領域のカルジオリピン(CL)が減少することを見いだした。CLはミトコンドリアの易酸化性リン脂質である。

本研究課題では、培養ヒト近位尿細管細胞と糖尿病性腎症モデル動物を用いて一連の実験を行い、食品・天然物から発見した数種のKeap1-Nrf2活性化物質(細胞の抗酸化酵素群を活性化する)を実験系に加え、糖尿病性腎症予防物質としての可能性と作用メカニズムを探る。

Outline of Final Research Achievements

The purpose of this research project is to use cultured human proximal tubular cells to examine the effects on intracellular fat accumulation and mitochondrial function, and to explore the mechanism of onset of diabetic nephropathy and the possibility of its control. Our study suggested that lipid accumulation in the kidney and decreased cardiolipin present in mitochondria may be related to the pathogenesis of nephropathy. This study revealed that functional components of foods reduce lipid accumulation in HK-2 cells and restore mitochondrial function. It has been suggested that functional ingredients contained in foods that improve lipid metabolism and protect cells may be useful in the prevention and treatment of diabetic nephropathy.

Academic Significance and Societal Importance of the Research Achievements

糖尿病性腎症は末期腎不全の最大の原因疾患であるが根本的な治療法が確立されておらず、腎症の発症メカニズムの解明と制御が重要な課題である。我々は、コレステロールなどの脂質蓄積、およびそれらの蓄積による酸化ストレスの亢進がミトコンドリア機能の低下をもたらしたことが糖尿病腎症の成因に関与している可能性を明らかにした。本研究では、脂質代謝の改善および細胞保護作用を示した食品機能性成分は、透析導入原疾患の第一位を占める糖尿病腎症の予防と治療に役立つ可能性が示唆された。

Report

(6 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (24 results)

All 2023 2022 2021 2020 2019

All Journal Article (11 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 11 results,  Open Access: 2 results) Presentation (13 results) (of which Invited: 1 results)

  • [Journal Article] Flazin improves mitochondrial dynamics in renal tubular epithelial cells under oxidative stress2023

    • Author(s)
      Wu Xun-Zhi、Ho Hsin-Jung、Eguchi Miki、Chen Zhen、Chiba Hitoshi、Hui Shu-Ping
    • Journal Title

      Food Bioscience

      Volume: 56 Pages: 103378-103378

    • DOI

      10.1016/j.fbio.2023.103378

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Oxidative Stress and Lipid Dysregulation in Lipid Droplets: A Connection to Chronic Kidney Disease Revealed in Human Kidney Cells.2022

    • Author(s)
      Zhen Chen, Rojeet Shrestha, Xiaoyue Yang, Xunzhi Wu, Jiaping Jia, Hitoshi Chiba, Shu-Ping Hui
    • Journal Title

      Antioxidants

      Volume: 11 Issue: 7 Pages: 1387-1387

    • DOI

      10.3390/antiox11071387

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Flazin as a Lipid Droplet Regulator against Lipid Disorders2022

    • Author(s)
      Wu Xunzhi、Chen Zhen、Wu Yue、Chen Yifan、Jia Jiaping、Shen Nianqiu、Chiba Hitoshi、Hui Shu-Ping
    • Journal Title

      Nutrients

      Volume: 14 Issue: 7 Pages: 1501-1501

    • DOI

      10.3390/nu14071501

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Quantitative and Comparative Investigation of Plasmalogen Species in Daily Foodstuffs2021

    • Author(s)
      Wu Y, Chen Z, Jia J, Chiba H, Hui SP
    • Journal Title

      Foods

      Volume: 10 Issue: 1 Pages: 124-124

    • DOI

      10.3390/foods10010124

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] A mouse model of short-term, diet-induced fatty liver with abnormal cardiolipin remodeling via downregulated Tafazzin gene expression2021

    • Author(s)
      Sakurai T, Chen Z, Yamahata A, Hayasaka T, Satoh H, Sekiguchi H, Chiba H, Hui SP.
    • Journal Title

      Sci Food Agric

      Volume: online ahead of print Issue: 12 Pages: 4995-5001

    • DOI

      10.1002/jsfa.11144

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Branched-chain amino acids and l-carnitine attenuate lipotoxic hepatocellular damage in rat cirrhotic liver.2021

    • Author(s)
      Tamai Y, Chen Z, Wu Y, Okabe J, Kobayashi Y, Chiba H, Hui SP, Eguchi A, Iwasa M, Ito M, Takei Y
    • Journal Title

      Biomed Pharmacother

      Volume: 135 Pages: 111181-111181

    • DOI

      10.1016/j.biopha.2020.111181

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Analysis of serum lysophosphatidylethanolamine levels in patients with non-alcoholic fatty liver disease by liquid chromatography-tandem mass spectrometry2021

    • Author(s)
      Yamamoto Y, Sakurai T, Chen Z, Furukawa T, Gowda SGB, Wu Y, Nouso K, Fujii Y, Yoshikawa Y, Chiba H, Hui SP
    • Journal Title

      Anal Bioanal Chem

      Volume: 413 Issue: 1 Pages: 245-254

    • DOI

      10.1007/s00216-020-02996-9

    • NAID

      120007166174

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Comprehensive lipidomic profiling in serum and multiple tissues from a mouse model of diabetes.2020

    • Author(s)
      Chen Z, Liang Q, Wu Y, Gao Z, Kobayashi S, Patel J, Li C, Cai F, Zhang Y, Liang C, Chiba H, Hui SP
    • Journal Title

      Metabolomics

      Volume: 16 Issue: 11 Pages: 115-115

    • DOI

      10.1007/s11306-020-01732-9

    • NAID

      120007165396

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Flazin as a Promising Nrf2 Pathway Activator2019

    • Author(s)
      Fuda H, Miyanaga S, Furukawa T, Umetsu S, Joko S, Roan Y, Suzuki H, Hui SP, Watanabe M, Chiba H.
    • Journal Title

      J Agric Food Chem

      Volume: 67 Issue: 46 Pages: 12844-12853

    • DOI

      10.1021/acs.jafc.9b04600

    • NAID

      120006896747

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Separating and Profiling Phosphatidylcholines and Triglycerides from Single Cellular Lipid Droplet by In-Tip Solvent Microextraction Mass Spectrometry2019

    • Author(s)
      Zhao Yaoyao、Chen Zhen、Wu Yue、Tsukui Takayuki、Ma Xiaoxiao、Zhang Xinrong、Chiba Hitoshi、Hui Shu-Ping
    • Journal Title

      Analytical Chemistry

      Volume: 91 Issue: 7 Pages: 4466-4471

    • DOI

      10.1021/acs.analchem.8b05122

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Novel Fluorescence-Based Method To Characterize the Antioxidative Effects of Food Metabolites on Lipid Droplets in Cultured Hepatocytes2019

    • Author(s)
      Tsukui Takayuki, Chen Zhen, Fuda Hirotoshi, Furukawa Takayuki, Oura Kotaro, Sakurai Toshihiro, Hui Shu-Ping, Chiba Hitoshi
    • Journal Title

      Journal of Agricultural and Food Chemistry

      Volume: 67 Issue: 35 Pages: 9934-9941

    • DOI

      10.1021/acs.jafc.9b02081

    • NAID

      120006877261

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] Improving effect of flazin on mitochondrial quality and function in human HK-2 cells2023

    • Author(s)
      Xun-Zhi Wu, Hsin-Jung Ho, Miki Eguchi, Zhen Chen, Hitoshi Chiba, Shu-Ping Hui
    • Organizer
      第63回日本臨床化学会 年次学術集会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Mitochondria-improving effect of flazin in human HK-2 cells under oxidative stress2023

    • Author(s)
      Xun-Zhi Wu, Hsin-Jung Ho, Miki Eguchi, Zhen Chen, Hitoshi Chiba, Shu-Ping Hui
    • Organizer
      統合医療機能性食品国際学会 第31回年会 (ICNIM 2023)
    • Related Report
      2023 Annual Research Report
  • [Presentation] マガキ由来抗酸化物質DHMBAの腎臓尿細管細胞における抗酸化作用2022

    • Author(s)
      何 欣蓉, 関根 かりん, 青木 菜摘, 櫻井 俊宏, 千葉 仁志, 渡辺 秀明, 渡辺 貢, 惠 淑萍
    • Organizer
      第29回日本未病学会学術総会
    • Related Report
      2022 Research-status Report
  • [Presentation] 臨床化学者の異分野連携研究2022

    • Author(s)
      惠 淑萍
    • Organizer
      第62回日本臨床化学会年次学術集会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] HK2細胞における異所性脂肪蓄積・酸化と、フラジンによる予防効果(Ectopic lipid accumulation and oxidation in HK2 cells and the prevention effects of flazin)2021

    • Author(s)
      惠 淑萍, Wu Xunzhi, Chen Zhen, Wu Yue, Chen Yifan, 千葉 仁志
    • Organizer
      第28回 日本未病学会学術総会
    • Related Report
      2021 Research-status Report
  • [Presentation] 健常者及び非アルコール性脂肪性肝疾患患者の血清中LysoPEプロファイル2020

    • Author(s)
      山本 祐輔, 櫻井 俊宏, 陳 震, Wu Yue, 藤井 佑樹, 能祖 一裕, 千葉 仁志, 惠 淑萍
    • Organizer
      第60回日本臨床化学会年会
    • Related Report
      2020 Research-status Report
  • [Presentation] Nrf2介在抗酸化物質と考えられるn-3脂肪酸由来脂質の発見2020

    • Author(s)
      千葉 仁志, Siddabasavegowda B. Gowda, 布田 博敏, 津久井 隆行, 惠 淑萍
    • Organizer
      第60回日本臨床化学会年会
    • Related Report
      2020 Research-status Report
  • [Presentation] サケ白子抽出物の培養ヒト肝細胞におけるミトコンドリア活性化作用2020

    • Author(s)
      関島 将人, 櫻井 俊宏, 佐藤 浩志, 何 欣蓉, 千葉 仁志, 惠 淑萍
    • Organizer
      第60回日本臨床化学会年会
    • Related Report
      2020 Research-status Report
  • [Presentation] 酸化HDLにより誘導された肝細胞過酸化脂質プロフィールの変動2020

    • Author(s)
      上野 朱音, 櫻井 俊宏, 関島 将人, 山端 ありさ, 陳 震, 千葉 仁志, 惠 淑萍
    • Organizer
      第60回日本臨床化学会年会
    • Related Report
      2020 Research-status Report
  • [Presentation] 酸化HDLの肝脂質代謝及びミトコンドリアへの影響2020

    • Author(s)
      山端 ありさ, 櫻井 俊宏, 関島 将人, 上野 朱音, 千葉 仁志, 惠 淑萍
    • Organizer
      第60回日本臨床化学会年会
    • Related Report
      2020 Research-status Report
  • [Presentation] リゾホスファチジルエタノールアミンの定量系開発のための標準品および内部標準物質の合成2019

    • Author(s)
      山本 祐輔,櫻井 俊宏,三浦 佑介,陳   震,千葉 仁志,惠  淑萍
    • Organizer
      第59回日本臨床化学会年次学術集会
    • Related Report
      2019 Research-status Report
  • [Presentation] ムール貝抽出物の新たな機能性評価と機能性物質の探索2019

    • Author(s)
      鈴木 拓貴,譚   慧,布田 博敏,千葉 仁志,惠  淑萍
    • Organizer
      第59回日本臨床化学会年次学術集会
    • Related Report
      2019 Research-status Report
  • [Presentation] HK-2 細胞における脂肪滴とカルジオリピンの関連性についての検討2019

    • Author(s)
      三浦 佑介,櫻井 俊宏,陳   震,千葉 仁志,惠  淑萍
    • Organizer
      第59回日本臨床化学会年次学術集会
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2025-01-30  

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