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Mechanisms of Atherosclerosis via Selective Insulin Resistance in Endothelial Cells

Research Project

Project/Area Number 19K08991
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 54040:Metabolism and endocrinology-related
Research InstitutionThe Institute for Adult Diseases Asahi Life Foundation

Principal Investigator

Kubota Tetsuya  公益財団法人朝日生命成人病研究所, その他部局等, 教授(移行) (60385698)

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: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywordsインスリン抵抗性 / 血管内皮細胞 / 動脈硬化 / インスリンシグナル
Outline of Research at the Start

肥満・2型糖尿病の血管内皮細胞では、「血管内皮細胞の選択的インスリン抵抗性」が惹起され、その結果動脈硬化症を発症すると考えられているが、その詳細なメカニズムは不明である。そこで本研究では、第一にリゾフォスファチジルコリン(16:0)がどのように血管内皮細胞のIRS-2の発現を調節しているのか、またそれによって「血管内皮細胞の選択的インスリン抵抗性」を発症するのかどうか検討する。第二に血管内皮細胞でIRS-2が低下すると、本当に動脈硬化症を発症するのかどうかについて血管内皮細胞特異的IRS-2欠損マウスを作成し、粥状動脈硬化とそのメカニズムについて検討する。

Outline of Final Research Achievements

To investigate the role of Irs2 of endothelial cells in atherosclerosis, we generated the endothelial-specific Irs2/ApoE double deficient (ETIrs2/ApoEDKO) mice. These mice were fed a high-cholesterol diet for 15 weeks. Metabolic profiles did not differ between the control and ETIrs2/ApoEDKO mice. The ETIrs2/ApoEDKO mice showed the exaggerated atherosclerosis in both the aortic valve and aorta. Moreover, the wild-type bone marrow transplanted ETIrs2/ApoEDKO mice showed the exaggerated atherosclerosis in the aorta. The expression levels of MCP-1 and VCAM1 were significantly increased in the ETIrs2/ApoEDKO mice. Consistent with these data, LPS-induced MCP-1 and VCAM-1 expression levels were significantly enhanced in primary endothelial cells of the ETIrs2/ApoEDKO mice. These data indicate that Irs2 in the endothelial cells ameliorates atherosclerosis.

Academic Significance and Societal Importance of the Research Achievements

肥満や2型糖尿病は動脈硬化発症の重要なリスクファクターの一つであるが、なぜ肥満や2型糖尿病で動脈硬化が促進するのかは十分に解明されていない。血管内皮細胞は、動脈硬化発症・進展にも重要な役割を果たしており、「血管内皮細胞の選択的インスリン抵抗性」に着目した研究は、上流にある肥満や2型糖尿病と下流にある合併症としての動脈硬化症を包括的に解明しようとするものでありきわめて意義深い。本研究で血管内皮細胞のインスリンシグナル、特に選択的インスリン抵抗性を介した動脈硬化症における役割が解明されることにより、これまでにない新規の抗動脈硬化薬の発見という画期的な意義が予想される

Report

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

    (22 results)

All 2021 2020 2019

All Journal Article (11 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 11 results,  Open Access: 6 results) Presentation (10 results) (of which Invited: 4 results) Book (1 results)

  • [Journal Article] Lack of Brain Insulin Receptor Substrate-1 Causes Growth Retardation, With Decreased Expression of Growth Hormone?Releasing Hormone in the Hypothalamus2021

    • Author(s)
      Hayashi Takanori、Kubota Tetsuya、Mariko Inoue、Takamoto Iseki、Aihara Masakazu、Sakurai Yoshitaka、Wada Nobuhiro、Miki Takashi、Yamauchi Toshimasa、Kubota Naoto、Kadowaki Takashi
    • Journal Title

      Diabetes

      Volume: 70 Issue: 8 Pages: 1640-1653

    • DOI

      10.2337/db20-0482

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Midlobular zone 2 hepatocytes: A gatekeeper of liver homeostasis2021

    • Author(s)
      Kubota Naoto、Kubota Tetsuya、Kadowaki Takashi
    • Journal Title

      Cell Metabolism

      Volume: 33 Issue: 5 Pages: 855-856

    • DOI

      10.1016/j.cmet.2021.04.005

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Diabetes management by either telemedicine or clinic visit improved glycemic control during the coronavirus disease 2019 pandemic state of emergency in Japan2021

    • Author(s)
      Onishi Yukiko、Yoshida Yoko、Takao Toshiko、Tahara Tazu、Kikuchi Takako、Kobori Toshiko、Kubota Tetsuya、Shimmei Asuka、Iwamoto Masahiko、Kasuga Masato
    • Journal Title

      Journal of Diabetes Investigation

      Volume: 13 Issue: 2 Pages: 386-390

    • DOI

      10.1111/jdi.13546

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] AST-120 Treatment Alters the Gut Microbiota Composition and Suppresses Hepatic Triglyceride Levels in Obese Mice2021

    • Author(s)
      Hiraga Yuki、Kubota Tetsuya、Katoh Makoto、Horai Yasushi、Suzuki Hiroyuki、Yamashita Yusuke、Hirata Rieko、Moroi Masao
    • Journal Title

      Endocrine Research

      Volume: 46 Issue: 4 Pages: 178-185

    • DOI

      10.1080/07435800.2021.1927074

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A xanthene derivative, DS20060511, attenuates glucose intolerance by inducing skeletal muscle-specific GLUT4 translocation in mice2021

    • Author(s)
      Furuzono Shinji、Kubota Tetsuya、Taura Junki、Konishi Masahiro、Naito Asuka、Tsutsui Masato、Karasawa Hiroshi、Kubota Naoto、Kadowaki Takashi
    • Journal Title

      Communications Biology

      Volume: 4 Issue: 1 Pages: 994-994

    • DOI

      10.1038/s42003-021-02491-6

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Stool pattern is associated with not only the prevalence of tumorigenic bacteria isolated from fecal matter but also plasma and fecal fatty acids in healthy Japanese adults2021

    • Author(s)
      Watanabe Daiki、Murakami Haruka、Ohno Harumi、Tanisawa Kumpei、Konishi Kana、Todoroki-Mori Kikue、Tsunematsu Yuta、Sato Michio、Ogata Yuji、Miyoshi Noriyuki、Kubota Naoto、Kunisawa Jun、Wakabayashi Keiji、Kubota Tetsuya、Watanabe Kenji、Miyachi Motohiko
    • Journal Title

      BMC Microbiology

      Volume: 21 Issue: 1 Pages: 196-196

    • DOI

      10.1186/s12866-021-02255-6

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] LPIAT1/MBOAT7 depletion increases triglyceride synthesis fueled by high phosphatidylinositol turnover2020

    • Author(s)
      Tanaka Y, Shimanaka Y, Caddeo A, Kubo T, Mao Y, Kubota T, Kubota N, Yamauchi T, Mancina RM, Baselli G, Luukkonen P, Pihlajamaki J, Yki-Jarvinen H, Valenti L, Arai H, Romeo S, Kono N.
    • Journal Title

      Gut

      Volume: 70 Issue: 1 Pages: 180

    • DOI

      10.1136/gutjnl-2020-320646

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Insulin- and Lipopolysaccharide-Mediated Signaling in Adipose Tissue Macrophages Regulates Postprandial Glycemia through Akt-mTOR Activation2020

    • Author(s)
      Toda G、Soeda K、Okazaki Y、Kobayashi N、Masuda Y、Arakawa N、Suwanai H、Masamoto Y、Izumida Y、Kamei N、Sasako T、Suzuki R、Kubota T、Kubota N、Kurokawa M、Tobe K、Noda T、Honda K、Accili D、Yamauchi T、Kadowaki T、Ueki K
    • Journal Title

      Molecular Cell

      Volume: 79 Issue: 1 Pages: 1-2

    • DOI

      10.1016/j.molcel.2020.04.033

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Association between tear and blood glucose concentrations: Random intercept model adjusted with confounders in tear samples negative for occult blood2020

    • Author(s)
      Aihara Masakazu、Kubota Naoto、Minami Takahiro、Shirakawa Rika、Sakurai Yoshitaka、Hayashi Takanori、Iwamoto Masahiko、Takamoto Iseki、Kubota Tetsuya、Suzuki Ryo、Usami Satoshi、Jinnouchi Hideaki、Aihara Makoto、Yamauchi Toshimasa、Sakata Toshiya、Kadowaki Takashi
    • Journal Title

      Journal of Diabetes Investigation

      Volume: 12 Issue: 2 Pages: 266-276

    • DOI

      10.1111/jdi.13344

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Differential effects of diet- and genetically-induced brain insulin resistance on amyloid pathology in a mouse model of Alzheimer’s disease2019

    • Author(s)
      Tomoko Wakabayashi, Kazuki Yamaguchi, Kentaro Matsui, Toshiharu Sano, Tetsuya Kubota, Tadafumi Hashimoto, Ayako Mano, Kaoru Yamada, Yuko Matsuo, Naoto Kubota, Takashi Kadowaki, Takeshi Iwatsubo
    • Journal Title

      Molecular Neurodegeneration

      Volume: 14 Issue: 1 Pages: 15-15

    • DOI

      10.1186/s13024-019-0315-7

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Innate Lymphoid Cells in the Induction of Obesity2019

    • Author(s)
      Sasaki T, Moro K, Kubota T, Kubota N, Kato T, Ohno H, Nakae S, Saito H, Koyasu S.
    • Journal Title

      Cell Rep

      Volume: 28 Issue: 1 Pages: 202-217

    • DOI

      10.1016/j.celrep.2019.06.016

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 高インスリン血症によるM2マクロファージ活性化障害2021

    • Author(s)
      窪田 哲也, 窪田 直人, 門脇 孝
    • Organizer
      第64回日本糖尿病学会年次学術集会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] ヒトの腸内細菌叢とインスリン抵抗性におけるMulti-Omics解析2021

    • Author(s)
      窪田 直人, 竹内 直志, 窪田 哲也, 水野 由子, 山道 信毅, 大野 博司, 門脇 孝
    • Organizer
      第64回日本糖尿病学会年次学術集会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 経口吸着炭薬は肥満2型糖尿病モデルマウスの脂肪肝 を抑制する2021

    • Author(s)
      窪田 哲也, 平賀 由起, 加藤 誠, 諸井 雅男
    • Organizer
      第64回日本糖尿病学会年次学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 病態発症における臓器内・臓器間のインスリン作用失調メカニズム2020

    • Author(s)
      窪田哲也
    • Organizer
      インスリン分泌セミナー
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] 当院における2型糖尿病患者の初診時臨床像の過去30年間の変遷2020

    • Author(s)
      小堀勤子, 大西 由希子, 吉田洋子, 高尾 淑子, 田原たづ, 菊池 貴子, 窪田 哲也, 岩本 真彦, 震明 あすか, 春日 雅人
    • Organizer
      第117回日本内科学会
    • Related Report
      2020 Research-status Report
  • [Presentation] 化合物Xは骨格筋特異的 にGLUT4の translocationを増強し糖取り込みを改善する2020

    • Author(s)
      窪田哲也、田浦順樹、古薗信二、唐澤博史、門脇孝、窪田直人:
    • Organizer
      第63回日本糖尿病学会年次学術集会
    • Related Report
      2020 Research-status Report
  • [Presentation] 院における過去30年間の初診時糖尿病性網膜症の頻度や重症度の変遷2020

    • Author(s)
      窪田哲也、吉田洋子、高尾淑子、大西由希子、田原たづ、菊池貴子、震明あすか、岩本真彦、小堀勤子、春日雅人
    • Organizer
      第35回日本糖尿病合併症学会
    • Related Report
      2020 Research-status Report
  • [Presentation] 肥満におけるM2マクロファージ活性化障害機構2020

    • Author(s)
      窪田哲也、窪田直人、門脇孝
    • Organizer
      第41回日本肥満学会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] 血管内皮細胞のIRS-2は動脈硬化 抑制に働く2019

    • Author(s)
      窪田哲也、窪田直人、林高則、相原允一、山内敏正、門脇孝
    • Organizer
      第62回日本糖尿病学会年次学術集会
    • Related Report
      2019 Research-status Report
  • [Presentation] 血管内皮細胞のIrs2は動脈硬化に抑制的に働く2019

    • Author(s)
      窪田哲也、窪田直人、林 高則、相原允一、山内敏正、門脇 孝
    • Organizer
      第23回日本心血管内分泌学会
    • Related Report
      2019 Research-status Report
  • [Book] 肥満に伴う高インスリン血症による M2a-subtype マクロファージ活性化機構の破綻2021

    • Author(s)
      窪田哲也, 井上真理子, 窪田直人, 門脇 孝
    • Total Pages
      4
    • Publisher
      日本肥満学会誌
    • Related Report
      2021 Annual Research Report

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

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