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Development of Diagnostic Methods for detecting Diabetic Nephropathy

Research Project

Project/Area Number 19K08717
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 53040:Nephrology-related
Research InstitutionNational Center for Global Health and Medicine

Principal Investigator

HIROYUKI KUBOTA  国立研究開発法人国立国際医療研究センター, その他部局等, 室長 (40323290)

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: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords糖尿病性腎臓病 / 腎機能低下 / 尿プロテオーム / 尿中タンパク質 / 糖尿病性腎症
Outline of Research at the Start

糖尿病の重篤な合併症のひとつである糖尿病性腎症は進行するまで自覚症状を伴わないことが多い。近年の腎病理学的解析から糖尿病性腎症には多様な病理像が認められることが報告され、腎機能予後と相関を示す病理像の存在も明らかになりつつあるものの、腎生検の侵襲性の高さや合併症のリスク等ゆえ糖尿病性腎症と診断されて腎生検が実施されることは稀である。そこで本研究では、非侵襲である尿検査によって糖尿病性腎症の予後を診断可能とする方法を開発することを目的に、申請者らが先行尿プロテオーム研究にて見出した糖尿病性腎症関連タンパク質と腎機能予後との関連を前向き観察研究集団にて検討する。

Outline of Final Research Achievements

We have previously performed a urinary proteomic analysis of patients with diabetic kidney disease (DKD) and identified the differentially excreted proteins in the patients with DKD. In this study, we evaluated the association of the differentially excreted proteins with an annual decline in estimated glomerular filtration (eGFR) in patients with type 2 diabetes (T2D) and preserved kidney function. We found that 9 proteins among them were significant independent predictors of annual decline in eGFR. In addition, urinary afamin levels, which have previously been found to be associated with changes in the urinary albumin-to-creatinine ratio, were increased in rapid decliner compared to that of slow decliner although the difference was not statistically significant. Our findings highlight the important effect of the identified urinary proteins including afamin as prognostic markers of early progressive renal decline in patients with T2D and preserved kidney function.

Academic Significance and Societal Importance of the Research Achievements

糖尿病性腎臓病患者における腎機能低下の危険因子である尿アルブミン・クレアチニン比やeGFRは、本研究で解析対象とする糖尿病性腎臓病を発症していない2型糖尿病患者における腎機能低下と明らかな関連を示さなかった。したがって本研究で新たに同定された尿中タンパク質の尿中濃度を用いた腎機能予後予測法を構築し、その有用性が示されれば、早期腎症期を的確に診断し、適切な治療介入により糖尿病性腎臓病の進展を阻止できる可能性がある。また、腎機能予後予測プログラムにて腎機能低下ハイリスク群と判定された2型糖尿病患者を対象として、腎機能低下をより効率的に予防する新たな治療法開発を進めることも可能となる。

Report

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

    (14 results)

All 2022 2021 2020 2019 Other

All Journal Article (4 results) (of which Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (8 results) (of which Int'l Joint Research: 4 results) Remarks (2 results)

  • [Journal Article] Evaluation of the QIAstat-Dx Respiratory SARS-CoV-2 panel, a rapid multiplex PCR method for the diagnosis of COVID-192022

    • Author(s)
      Ishikane Masahiro、Unoki-Kubota Hiroyuki、Moriya Ataru、Kutsuna Satoshi、Ando Honami、Kaburagi Yasushi、Suzuki Tetsuya、Iwamoto Noriko、Kimura Moto、Ohmagari Norio
    • Journal Title

      Journal of Infection and Chemotherapy

      Volume: 28 Issue: 6 Pages: 729-734

    • DOI

      10.1016/j.jiac.2022.02.004

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 多層的オミックス解析による慢性腎臓病研究2021

    • Author(s)
      久保田浩之, 今澤俊之
    • Journal Title

      腎と透析

      Volume: 91(5) Pages: 873-876

    • Related Report
      2021 Annual Research Report
  • [Journal Article] 遺伝的素因2021

    • Author(s)
      久保田浩之, 今澤俊之
    • Journal Title

      腎と透析

      Volume: 91(4) Pages: 519-523

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Podocyte-specific deletion of tubular sclerosis complex 2 promotes focal segmental glomerulosclerosis and progressive renal failure2020

    • Author(s)
      Iwata Wakiko、Unoki-Kubota Hiroyuki、Kato Hideki、Shimizu Akira、Matsumoto Michihiro、Imasawa Toshiyuki、Igarashi Arisa、Matsumoto Kenji、Noda Tetsuo、Terauchi Yasuo、Nangaku Masaomi、Kasuga Masato、Kaburagi Yasushi
    • Journal Title

      PLOS ONE

      Volume: 15 Issue: 3 Pages: e0229397-e0229397

    • DOI

      10.1371/journal.pone.0229397

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 多層的オミックス解析によるCKD 研究2021

    • Author(s)
      今澤 俊之, 久保田 浩之, 平野 大志, 北村 博司, 鏑木 康志
    • Organizer
      第51回(令和3年度)日本腎臓学会東部学術大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Urinary Biomarkers for Prediction of Estimated GFR Decline in Patients with Type 2 Diabetes and Preserved Kidney Function2021

    • Author(s)
      Hiroyuki Unoki-Kubota, Emi Ito, Daishi Hirano, Toshiyuki Imasawa, Hiroshi Kajio, Shigeo Yamashita, Yuka Fukazawa, Yasushi Kaburagi
    • Organizer
      American Society of Nephrology Kidney Week
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Independent Predictive Factors of Estimated GFR Decline in Type 2 Diabetes Patients with Preserved Kidney Function2021

    • Author(s)
      Daishi Hirano, Hiroyuki Unoki-Kubota, Toshiyuki Imasawa, Hiroshi Kajio, Shigeo Yamashita, Yuka Fukazawa, Yasushi Kaburagi
    • Organizer
      American Society of Nephrology Kidney Week
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] PDK1 is a key regulator of podocyte viability and maintenance of glomerular function.2020

    • Author(s)
      Iwata W, Unoki-Kubota H, Kato H, Matsumoto M, Nangaku M, Kaburagi Y.
    • Organizer
      American Diabetes Association 80th Scientific Sessions
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] 糸球体上皮細胞におけるPDK1の役割と腎機能への影響の解析2019

    • Author(s)
      岩田和希子、久保田浩之、加藤秀樹、清水章、松本道宏、寺内康夫、南学正臣、春日雅人、鏑木康志
    • Organizer
      第56回日本臨床分子医学会学術集会
    • Related Report
      2019 Research-status Report
  • [Presentation] 尿中deoxyribonuclease-I レベルは糖尿病腎症の重症化と関連する2019

    • Author(s)
      伊藤恵実、久保田浩之、高橋枝里、梶尾裕、本田律子、野田光彦、鏑木康志
    • Organizer
      第62 回日本糖尿病学会年次学術集会
    • Related Report
      2019 Research-status Report
  • [Presentation] 糸球体上皮細胞特異的Tuberous sclerosis complex 2 欠損マウスポドサイトを用いた糖尿病性腎症関連パスウェイの探索2019

    • Author(s)
      岩田和希子、久保田浩之、松本道宏、寺内康夫、鏑木康志
    • Organizer
      第62 回日本糖尿病学会年次学術集会
    • Related Report
      2019 Research-status Report
  • [Presentation] Urinary Levels of Deoxyribonuclease-1 and Lysosomal Alpha-Glucosidase Were Associated with the Progression of Diabetic Nephropathy2019

    • Author(s)
      Yasushi Kaburagi, Emi Ito, Hiroyuki Unoki-Kubota
    • Organizer
      American Diabetes Association 79th Scientific Sessions
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Remarks] 国立国際医療研究センター 研究所 糖尿病研究センター 臓器障害研究部

    • URL

      http://www.ncgm-dmcomp.umin.jp/

    • Related Report
      2021 Annual Research Report
  • [Remarks] 国立国際医療研究センター研究所 糖尿病研究センター 臓器障害研究部

    • URL

      http://www.ncgm-dmcomp.umin.jp/

    • Related Report
      2020 Research-status Report 2019 Research-status Report

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

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