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2012 Fiscal Year Annual Research Report

小腸ホルモン、インクレチンを用いた糖尿病性大血管障害の治療戦略

Research Project

Project/Area Number 22590831
Research InstitutionTokyo University of Pharmacy and Life Science

Principal Investigator

渡部 琢也  東京薬科大学, 生命科学部, 教授 (30297014)

Project Period (FY) 2010-04-01 – 2013-03-31
Keywordsインクレチン / DPP-4阻害剤 / 糖尿病 / 動脈硬化 / マクロファージの泡沫化
Research Abstract

Dipeptidyl Peptidase-4 (DPP-4)阻害剤は、内因性インクレチン(GLP-1、GIP)を増加させることで血糖を降下させる新しい糖尿病治療薬である。ApoE欠損マウス(動脈硬化モデル)にストレプトゾトシンを腹腔内投与(膵臓β細胞を破壊)して糖尿病を発症させ、DPP-4阻害剤(Vildagliptin)を投与すると動脈硬化の進展が抑制されるかどうかを世界に先駆けて検討した。
ApoE欠損マウス45匹を5群に分け、17週齢から高脂肪食とともにVildagliptinの経口投与並びに他剤の浸透圧ポンプによる投与を4週間行なった。
①生食(対照)、②Vildagliptin、③Vildagliptin+Pro3 (GIP受容体拮抗剤)、 ④Vildagliptin+Exendin-9 (GLP-1受容体拮抗剤)、⑤Vildagliptin+Pro3+Exendin-9
糖尿病発症ApoE欠損マウスは、糖尿病未発症ApoE欠損マウスに比べ、動脈硬化病変が更に+30%増加していた。糖尿病発症ApoE欠損マウスへのDPP-4阻害剤の経口投与は、血中のGLP-1およびGIPを有意に増加させ、動脈硬化病変および単球/マクロファージの浸潤を顕著に抑制させた。動脈硬化病変、単球/マクロファージの浸潤、酸化LDLによるマクロファージの泡沫化に対するDPP-4阻害剤の抑制作用は、GLP-1受容体拮抗剤またはGIP受容体拮抗剤の追加投与により一部キャンセルされ、GLP-1受容体拮抗剤およびGIP受容体拮抗剤の同時併用投与により完全にキャンセルされた。空腹時血糖、インスリン、脂質プロファイルには有意な変化を認めなかった。
DPP-4阻害剤のVildagliptinは、糖尿病発症ApoE欠損マウスにおいても動脈硬化を著明に抑制することが出来た。本内容の論文を国際誌に現在投稿中である。

Current Status of Research Progress
Reason

24年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

24年度が最終年度であるため、記入しない。

  • Research Products

    (23 results)

All 2013 2012 Other

All Journal Article (10 results) (of which Peer Reviewed: 10 results) Presentation (10 results) (of which Invited: 1 results) Book (3 results)

  • [Journal Article] Emerging roles for vasoactive peptides in diagnostic and therapeutic strategies against atherosclerotic cardiovascular diseases.2013

    • Author(s)
      Watanabe T, et al.
    • Journal Title

      Curr Protein Pept Sci

      Volume: in press Pages: in press

    • Peer Reviewed
  • [Journal Article] 冠動脈硬化疾患のバイオマーカーとしての 血管作動性物質の有用性2013

    • Author(s)
      Sato K, Watanabe T, et al.
    • Journal Title

      日本臨床検査自動化学会会誌

      Volume: in press Pages: in press

    • Peer Reviewed
  • [Journal Article] Smad2/Smad3 in endothelium is indispensable for vascular stability via S1PR1 and N-cadherin expressions.2012

    • Author(s)
      Itoh F, Watanabe T, et al.
    • Journal Title

      Blood

      Volume: 119 Pages: 5320-5328

    • DOI

      10.1182/blood-2011-12-395772

    • Peer Reviewed
  • [Journal Article] Glucose-dependent insulinotropic polypeptide prevents the progression of macrophage-driven atherosclerosis in diabetic apolipoprotein E-null mice.2012

    • Author(s)
      Nogi Y, Watanabe T, et al.
    • Journal Title

      PLoS One

      Volume: 7 Pages: e35683

    • DOI

      10.1371/journal.pone.0035683

    • Peer Reviewed
  • [Journal Article] Preventive effects of dipeptidyl peptidase-4 inhibitor on the development of atherosclerotic lesions in apolipoprotein E-null mice.2012

    • Author(s)
      Terasaki M, Watanabe T, et al.
    • Journal Title

      Metabolism

      Volume: 61 Pages: 974-977

    • DOI

      10.1016/j.metabol.2011.11.011

    • Peer Reviewed
  • [Journal Article] Salusin-β accelerates inflammatory responses in vascular endothelial cells via NF-κB signaling in LDL receptor-deficient mice in vivo and HUVECs in vitro.2012

    • Author(s)
      Koya T, Watanabe T, et al.
    • Journal Title

      Am J Physiol Heart Circ Physiol

      Volume: 303 Pages: H96-H105

    • DOI

      10.1152/ajpheart.00009.2012

    • Peer Reviewed
  • [Journal Article] Endogenous bioactive peptides as biomarkers for atherosclerotic coronary heart disease.2012

    • Author(s)
      Watanabe T, et al.
    • Journal Title

      Sensors (Basel)

      Volume: 12 Pages: 4974-4985

    • DOI

      10.3390/s120404974

    • Peer Reviewed
  • [Journal Article] Pathogenic involvement of heregulin-β1 in anti-atherogenesis.2012

    • Author(s)
      Watanabe T, et al.
    • Journal Title

      Regulatory Peptides

      Volume: 175 Pages: 11-14

    • DOI

      10.1016/j.regpep.2012.01.004

    • Peer Reviewed
  • [Journal Article] Stem/progenitor-cell-based approach for restenosis after percutaneous coronary intervention: application of bone marrow progenitors and future perspectives.2012

    • Author(s)
      Iso Y, Watanabe T, et al.
    • Journal Title

      Translational Medicine

      Volume: S7 Pages: 1

    • DOI

      10.4172/2161-1025.S7-001

    • Peer Reviewed
  • [Journal Article] Novel technologies and future perspectives of drug-eluting stent.2012

    • Author(s)
      Wakabayashi K, Watanabe T, et al.
    • Journal Title

      Translational Medicine

      Volume: S7 Pages: 2

    • DOI

      10.4172/2161-1025.S7-002

    • Peer Reviewed
  • [Presentation] 新規血管作動性ペプチドと酸化LDLの動脈硬化に対する相互作用2012

    • Author(s)
      渡部琢也
    • Organizer
      富士吉田医師会学術講演会
    • Place of Presentation
      富士吉田
    • Year and Date
      2012-05-11
  • [Presentation] Dicer-dependent miRNA pathway is important for vascular development.

    • Author(s)
      Itoh F, Watanabe T,et al.
    • Organizer
      10th Korea-Japan Joint Symposium on Vasuclar Biology
    • Place of Presentation
      Tokushima
  • [Presentation] TGF-β signaling inhibit tumor angiogenesis in vivo.

    • Author(s)
      Takagi T, Watanabe T,et al.
    • Organizer
      10th Korea-Japan Joint Symposium on Vasuclar Biology
    • Place of Presentation
      Tokushima
  • [Presentation] TGF-β signaling regulates lymphangiogenesis in vivo.

    • Author(s)
      Ichikawa K, Watanabe T,et al.
    • Organizer
      10th Korea-Japan Joint Symposium on Vasuclar Biology
    • Place of Presentation
      Tokushima
  • [Presentation] Endothelial TGF-β signaling inhibits tumor angiogenesis.

    • Author(s)
      Takagi T, Watanabe T,et al.
    • Organizer
      2nd International Symposium by JSPS Core-to-Core Program "TGF-β Family: Signal Network and Tumor Microenvironment"
    • Place of Presentation
      Tokyo
  • [Presentation] Lack of TGF-β signaling promotes lymphangiogenesis in vivo.

    • Author(s)
      Ichikawa K, Watanabe T,et al.
    • Organizer
      2nd International Symposium by JSPS Core-to-Core Program "TGF-β Family: Signal Network and Tumor Microenvironment"
    • Place of Presentation
      Tokyo
  • [Presentation] TGF-β signaling regulates lymphangiogenesis in mice development.

    • Author(s)
      Itoh F, Watanabe T,et al.
    • Organizer
      17th International Vascular Biology Meeting
    • Place of Presentation
      Wiesbaden, Germany
  • [Presentation] TGF-βシグナル欠損による血管構造の異常

    • Author(s)
      高木尊大、渡部琢也、他
    • Organizer
      第24回 高遠・分子細胞生物学シンポジウム
    • Place of Presentation
      高遠
  • [Presentation] 生体におけるTGF-βシグナルのリンパ管制御

    • Author(s)
      市川圭、渡部琢也、他
    • Organizer
      第24回 高遠・分子細胞生物学シンポジウム
    • Place of Presentation
      高遠
  • [Presentation] サリューシンの動脈硬化制御作用

    • Author(s)
      渡部琢也
    • Organizer
      第1回 サリューシン研究会
    • Place of Presentation
      相模大野
    • Invited
  • [Book] Cardiovascular Disease2013

    • Author(s)
      Watanabe T, et al.
    • Total Pages
      in press
    • Publisher
      Concept Press
  • [Book] Handbook of Biologically Active Peptides Section on Cardiovascular Peptides2013

    • Author(s)
      Shichiri M, Watanabe T, et al.
    • Total Pages
      5
    • Publisher
      Elsevier
  • [Book] Traditional and Novel Risk Factors in Atherothrombosis2012

    • Author(s)
      Watanabe T, et al.
    • Total Pages
      14
    • Publisher
      InTech

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Published: 2014-07-24  

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