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Evaluation of the effects of glucosamine modification on endothelial cells of diabetic angiopathy

Research Project

Project/Area Number 17K09565
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Cardiovascular medicine
Research InstitutionNational Defense Medical College

Principal Investigator

Masaki Nobuyuki  防衛医科大学校(医学教育部医学科進学課程及び専門課程、動物実験施設、共同利用研究施設、病院並びに防衛, 内科学, 講師 (00364795)

Co-Investigator(Kenkyū-buntansha) 足立 健  防衛医科大学校(医学教育部医学科進学課程及び専門課程、動物実験施設、共同利用研究施設、病院並びに防衛, 内科学, 教授 (50231931)
高瀬 凡平  防衛医科大学校(医学教育部医学科進学課程及び専門課程、動物実験施設、共同利用研究施設、病院並びに防衛, 集中治療部, 准教授 (50518214)
東谷 卓美  防衛医科大学校(医学教育部医学科進学課程及び専門課程、動物実験施設、共同利用研究施設、病院並びに防衛, 内科学, 助教 (60781515)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords血管内皮機能障害 / グルコサミン / 糖尿病 / 糖尿病性血管障害 / 血管内皮細胞 / インスリン抵抗性 / 循環器・高血圧 / 内科 / 細胞・組織 / 生体分子
Outline of Final Research Achievements

We developed a new method to collect freshly isolated endothelial cells from radial catheter sheath used for coronary angiography. We sought to elucidate the relationship between diabetic angiopathy and intracellular O-GlcNAc modification using the method. Study 1: O-GlcNAc modification in the endothelial cells harvested from upper arm veins with J-wire was increased in patients with type-2 diabetes mellitus (T2DM) by fluorescence microscopy. Study 2: In a cross-sectional study of 84 patients, Percent increase of insulin-induced phosphorylation of endothelial nitric oxide synthase (eNOS) at serine 1177 were evaluated in endothelial cells collected from radial artery. Endothelial insulin resistance defined as reduced eNOS response to insulin was seen in the T2DM with self-insulin injection, coronary artery disease, and severe arterial stiffness evaluated by cardio-ankle vascular index. These results suggested that T2DM causes endothelial dysfunction by excessive O-GlcNAc modification.

Academic Significance and Societal Importance of the Research Achievements

血管は癌、血液、皮膚のように多くのヒト検体を採取して調べる事が難しい。そのため、血管内皮細胞の基礎研究(細胞、動物)に比べて、実際の患者の細胞・組織を用いた研究は限られていた。今回開発した方法は、心臓カテーテル器具に付着した細胞を回収するため、新たな侵襲を加えるものではない。この方法を用いて、我々は糖尿病患者の血管内皮機能障害の原因の一つとして細胞内グルコサミン化(O-GlcNAc)の関与を明らかにした。心臓カテーテル検査は広く普及していることから、多くの被検者から細胞を集めることができるため、不明であった患者の病態や血管生理と分子生物学的メカニズムとの関連の解明に役立つと期待される。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (13 results)

All 2020 2019 2018 Other

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

  • [Int'l Joint Research] Boston University Medical Center(米国)

    • Related Report
      2018 Research-status Report
  • [Journal Article] O- GlcNAcylation Mediates Glucose- Induced Alterations in Endothelial Cell Phenotype in Human Diabetes Mellitus2020

    • Author(s)
      Masaki N, Feng B, Bretón-Romero R, Inagaki E, Weisbrod RM, Fetterman JL, Hamburg NM.
    • Journal Title

      J Am Heart Assoc.

      Volume: 9 Issue: 12

    • DOI

      10.1161/jaha.119.014046

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Endothelial Insulin Resistance of Freshly Isolated Arterial Endothelial Cells From Radial Sheaths in Patients With Suspected Coronary Artery Disease2019

    • Author(s)
      Nobuyuki Masaki, Yasuo Ido, Toshiyuki Yamada, Youhei Yamashita, Takumi Toya, Bonpei Takase, Naomi M. Hamburg, Takeshi Adachi
    • Journal Title

      Journal of American Heart Association

      Volume: 8 Issue: 6

    • DOI

      10.1161/jaha.118.010816

    • Related Report
      2019 Annual Research Report 2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Arterial Stiffness Assessed by Cardio-Ankle Vascular Index2019

    • Author(s)
      Namba Takayuki、Masaki Nobuyuki、Takase Bonpei、Adachi Takeshi
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 20 Issue: 15 Pages: 3664-3664

    • DOI

      10.3390/ijms20153664

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Preserved Vasoconstriction and Relaxation of Saphenous Vein Grafts Obtained by a No-Touch Technique for Coronary Artery Bypass Grafting2018

    • Author(s)
      Yamada T, Adachi T, Ido Y, Masaki N, Toya T, Uchimuro T, Nishigawa K, Suda H, Osako M, Yamazaki M, Takanashi S, Shimizu H
    • Journal Title

      Circulation Journal

      Volume: 83 Issue: 1 Pages: 232-238

    • DOI

      10.1253/circj.CJ-18-0714

    • NAID

      130007550528

    • ISSN
      1346-9843, 1347-4820
    • Year and Date
      2018-12-25
    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 心臓カテーテル検査器具から得られた血管内皮細胞のインスリン抵抗性と糖尿病性血管障害との関連2019

    • Author(s)
      眞﨑 暢之, 井戸 康夫, 高瀬 凡平, 足立 健
    • Organizer
      第67回日本心臓病学会学術集会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Association between arteriosclerosis obliterans and insulin-mediated eNOS activation in freshly isolated arterial endothelial cells from radial catheter sheath2019

    • Author(s)
      眞﨑暢之、井戸康夫、高瀬凡平、足立健
    • Organizer
      第3回日本循環器学会基礎研究フォーラム
    • Related Report
      2019 Annual Research Report
  • [Presentation] Association Between VCAM-1 Expression in Freshly Isolated Arterial Endothelial Cells From Radial Catheter Sheath and Chronic Kidney Disease2019

    • Author(s)
      Nobuyuki Masaki, Yasuo Ido, Bonpei Takase, and Takeshi Adachi.
    • Organizer
      Vascular Disocvery
    • Related Report
      2019 Annual Research Report
  • [Presentation] Association Between VCAM-1 Expression in Freshly Isolated Arterial Endothelial Cells From Radial Catheter Sheath and Chronic Kidney Disease2019

    • Author(s)
      Nobuyuki Masaki, Yasuo Ido, Bonpei Takase, and Takeshi Adachi
    • Organizer
      Vascular Discovery 2019
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 心臓カテーテル検査器具より回収した血管内皮細胞を用いたeNOS活性とVCAM-1発現の検討2018

    • Author(s)
      眞﨑暢之
    • Organizer
      第3回日本血管不全学会学術集会
    • Related Report
      2018 Research-status Report
  • [Presentation] Increased Basal eNOS Activity in Freshly Isolated Endothelial Cells from Patients with Cardiovascular Disease2018

    • Author(s)
      眞﨑暢之
    • Organizer
      第82回日本循環器学会総会
    • Related Report
      2018 Research-status Report
  • [Presentation] Increased basal eNOS activity in freshly isolated endothelial cells from patients with cardiovascular disease2018

    • Author(s)
      眞﨑暢之
    • Organizer
      日本循環器学会総会
    • Related Report
      2017 Research-status Report
  • [Presentation] 心臓カテーテル検査器具より回収した血管内皮細胞を用いたeNOS活性とVCAM-1発現の検討2018

    • Author(s)
      眞﨑暢之
    • Organizer
      血管不全学会
    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2021-02-19  

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