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酸化LDL選択的除去による動脈硬化改善治療への挑戦

Research Project

Project/Area Number 21659224
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeSingle-year Grants
Research Field Metabolomics
Research InstitutionTohoku University

Principal Investigator

片桐 秀樹  東北大学, 大学院・医学系研究科, 教授 (00344664)

Co-Investigator(Kenkyū-buntansha) 澤田 正二郎  東北大学, 病院, 助教 (60509420)
Project Period (FY) 2009 – 2010
Project Status Completed (Fiscal Year 2010)
Budget Amount *help
¥3,100,000 (Direct Cost: ¥3,100,000)
Fiscal Year 2010: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 2009: ¥1,700,000 (Direct Cost: ¥1,700,000)
Keywords糖尿病 / メタボリックシンドローム / 肥満 / 臓器間ネットワーク / インスリン / 膵β細胞
Research Abstract

動脈硬化の発症の機序として、low density lipoprotein(LDL)の果たす役割が重要であることは周知のことである。我々は、以前、高LDLにより動脈硬化をきたすモデルマウス(apoE欠損マウス)を用い、肝に酸化LDL受容体として知られるLOX-1タンパクを過剰発現させることにより、高LDL血症の状況で酸化LDLを選択的に除去することを試みたところ、アデノウィルスによる短期(1週間程度)のLOX-1発現により、4週間の動脈硬化の進展をほぼ完全に抑制するという結果を得た。そこで、LOX-1発現を長期に行い、数ヶ月にわたり酸化LDLを減少させると、動脈硬化病変を縮小させることができるのではないかという挑戦的な仮説を立て、長期発現を試みた。長期発現を得るため、さまざまな発現モデルを試した結果、長期発現改変アデノウィルスを用いることにより、数ヶ月にわたる発現を得ることに成功した。そこで、遺伝子発現系を用い、動脈硬化が進展した週齢でのapoE欠損マウスの動脈硬化病変に与える影響を検討している。
LOX-1遺伝子アデノウィルスの静脈注射により、apoE欠損マウスの肝にLOX-1は発現し、酸化LDLの肝への取り込みが認められた。動脈硬化の進展は肝LOX-1発現により、著明に抑制されたが、高コレステロールapoE欠損マウス食モデルでは、縮小効果までは見出せなかった。現在、普通食のapoE欠損マウスによる、長期間での動脈硬化の進展に対する影響を検討している。本成果は、酸化LDLの動脈硬化の進展や退縮における役割の検討につながるものと期待する。

Report

(2 results)
  • 2010 Annual Research Report
  • 2009 Annual Research Report
  • Research Products

    (23 results)

All 2011 2010 2009

All Journal Article (16 results) (of which Peer Reviewed: 16 results) Presentation (7 results)

  • [Journal Article] Fbxw7 regulates lipid metabolism and cell fate decisions in the mouse liver.2011

    • Author(s)
      Onoyama I, Suzuki A, Matsumoto A, Tomita K, Katagiri H, Oike Y, Nakayama K, Nakayama KI.
    • Journal Title

      J CIin lnvest

      Volume: 121(1) Pages: 342-354

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Interleukin-6 Enhances Glucose-Stimulated Insulin Secretion From Pancreaticβ-Cells : Potential Involvement of the PLC-IP3-Dependent Pathway2011

    • Author(s)
      Suzuki T, Imai J, Yamada T, Ishigaki Y, Kaneko K, Uno K, Hasegawa Y lshihara H, Oka Y, Katagixz H.
    • Journal Title

      Diabetes

      Volume: 60(2) Pages: 537-547

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 4F2hc stabilizes GLUTl protein and increases glucose transport activity.2011

    • Author(s)
      Ohno H, Nakatsu Y, Sakoda H, Kushiyama A, Ono H, Fujishiro M, Otani Y, Okubo H, Yoneda M, Fukushima T, Kamata H, Nishimura F, Kurihara H, Katagiri H, Oka Y, Asano T.
    • Journal Title

      Am J Physiol Cell Physiol.In Press

      Volume: 印刷中(未定)

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Molecular Characterization of the Tumor Suppressor Candidate 5 Gene : Regulation by PPARy and Identification of TUSC5 Coding Variants in Lean and Obese Humans.2010

    • Author(s)
      Knotts TA, Lee HW, Kim JB, 0ort PJ, McPherson R, Dent R, Tachibana K, Doi T, Yu S, ReddyJK, Uno K, Katagiri H, Pasarica M, Smith SR, Sears DD, Grino M, Adams SH.
    • Journal Title

      PPAR Research

      Pages: 8676-8678

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Characterization of a novel murine preadipocyte line, AP-18, isolated from subcutaneous tissue : analysis of adipocyte-related gene expressions.2010

    • Author(s)
      Chen C, Takahashi K, Yoshida A, Takizawa Y, Lee Y, Nakui M, Doi H, Takebayashi Y, Fukumoto M, Yamada T, Katagiri H, 0ka Y, Satoh J
    • Journal Title

      Cell Biol Int

      Volume: 34(3) Pages: 293-299

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The JNK pathway modulates expression and phosphorylation of 4E-BP1 in MIN6 pancreaticβcells under oxidative stress conditions.2010

    • Author(s)
      Tominaga R, Yamaguchi S, Satake C, Usui M, Tanji Y, Kondo K, Katagiri H, Oka Y, Ishihara H
    • Journal Title

      Cell Biochem Fund

      Volume: 28(5) Pages: 387-393

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Increased E4 activity in mice leads to ubiquitin-containing aggregates and degeneration of hypothalamic neurons resulting in obesity.2010

    • Author(s)
      Susaki E, Kaneko-Oshikawa C, Miyata K, Tabata M, Yamada T, Oike Y, Katagiri H, Nakayama KI.
    • Journal Title

      J.Biol.Chem

      Volume: 285(20) Pages: 15538-15547

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Pinl associates with and induces translocation of CRTC2 to the cytosol, thereby suppressing cAMP-responsive element transcriptional activity.2010

    • Author(s)
      Nakatsu Y, Sakoda H, Kushiyama A, Ono H, Fujishiro M, Horike N, Yoneda M, Ohno H, Tsuchiya Y, Kamata H, Tahara H, Isobe T, Nishimura F, Katagiri H, Oka Y, Fukushima T, Takahashi S, Kurihara H, Uchida T, Asano T.
    • Journal Title

      J Biol Chem

      Volume: 285(43) Pages: 33018-33027

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Carotid arterial elasticity is a sensitive atherosclerosis value reflecting visceral fat accumulation in obese subjects2009

    • Author(s)
      Tokita A, Ishigaki Y, Okimoto H, Hasegawia H, Koiwa Y, Kato M, Ishihara H, Hinokio Y, Katagiri H, Kanai H, Oka Y.
    • Journal Title

      Atherosclerosis 206(1)

      Pages: 168-172

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Identification of a Novel Mechanism Regulating β Cell Mass : Neuronal relay from the Liver to Pancreatic β Cells2009

    • Author(s)
      Imai J., Oka Y., Katagiri H.
    • Journal Title

      Islets 1(1)

      Pages: 75-77

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Neural Relay from the Liver Induces Proliferation of Pancreatic β Cells : A Path to Regenerative Medicine using the Self-Renewal Capabilities2009

    • Author(s)
      Katagiri H, Imai J, Oka Y.
    • Journal Title

      Commun Integr Biol. 2

      Pages: 425-427

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Peginterferon (PEG-IFN) plus Ribavirin Combination Therapy, but neither Interferon nor PGE-IFN Alone, Apparently Induced Type 1 Diabetes in a Patient with Chronic Hepatitis C2009

    • Author(s)
      Ogihara T, Katagiri H, Yamada T., Kudo H, Imai J, Ishigaki Y, Hinokio Y, Yamagiwa Y, Ueno Y, Shimosegawa T, Oka Y.
    • Journal Title

      Internal Medicine 48

      Pages: 1387-1390

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Eradication of insulin resistance2009

    • Author(s)
      Imai J, Yamada T, Saito T, Ishigaki Y, Hinokio Y, Kotake H, Oka Y, Katagiri H.
    • Journal Title

      The Lancet 374

      Pages: 264-264

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Circulating oxidized LDL -a biomarker and a pathogenic factor2009

    • Author(s)
      Ishigaki Y, Oka Y, Katagiri H.
    • Journal Title

      Curr Opin Lipidol 20(5)

      Pages: 363-369

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Angiopoietin-like protein 2 promotes chronic adipose tissue inflammation and obesity-related systemic insulin resistance2009

    • Author(s)
      Tabata M, Kadomatsu T, Fukuhara S, Miyata K, Ito Y, Endo M, Urano T, Zhu HJ, Tsukano H, Tazume H, Kaikita K, Miyashita K, Iwawaki T, Shimabukuro M, Sakaguchi K, Ito T, Nakagata N, Yamada T, Katagiri H, Kasuga M, Ando Y, Ogawa H, Mochizuki N, Itoh H, Oike Y.
    • Journal Title

      Cell Metab 10

      Pages: 178-188

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Different Impacts of Saturated and Unsaturated Free Fatty Acids on COX-2 Expression in C2C12 Myotubes2009

    • Author(s)
      Kadotani A, Tsuchiya Y, Hatakeyama H, Katagiri H, Kanzaki M.
    • Journal Title

      Am J Physiol Endocrinol Metab 297(6)

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Presentation] 中枢と末梢のコーディネイト2010

    • Author(s)
      片桐秀樹
    • Organizer
      第31回日本肥満学会
    • Place of Presentation
      前橋
    • Year and Date
      2010-10-02
    • Related Report
      2010 Annual Research Report
  • [Presentation] Metabolic Harmony:自律神経による糖・エネルギー代謝に協調的調節2010

    • Author(s)
      片桐秀樹
    • Organizer
      第53回日本糖尿病学会年次学術集会
    • Place of Presentation
      岡山
    • Year and Date
      2010-05-28
    • Related Report
      2010 Annual Research Report
  • [Presentation] 神経ネットワークによる臓器間代謝調節2010

    • Author(s)
      片桐秀樹
    • Organizer
      第44回糖尿病学の進歩
    • Place of Presentation
      大阪
    • Related Report
      2009 Annual Research Report
  • [Presentation] メタボリックシンドロームの最前線-基礎から臨床- Neuronal Involvement in Inter-organ Metabolic Communication2010

    • Author(s)
      片桐秀樹
    • Organizer
      日本循環器病学会
    • Place of Presentation
      京都
    • Related Report
      2009 Annual Research Report
  • [Presentation] 肥満・糠尿病の成因とその対策2009

    • Author(s)
      片桐秀樹
    • Organizer
      日本内科学会東北地方会生涯教育講演会
    • Place of Presentation
      仙台
    • Year and Date
      2009-06-20
    • Related Report
      2009 Annual Research Report
  • [Presentation] 膵β細胞の分化増殖と臨床展開 臓器間連関による膵β細胞再生機構2009

    • Author(s)
      片桐秀樹
    • Organizer
      第82回日本内分泌学会学術総会
    • Place of Presentation
      前橋
    • Related Report
      2009 Annual Research Report
  • [Presentation] ストレス応答の新機軸 神経系による糖・エネルギー代謝の協調的調節2009

    • Author(s)
      片桐秀樹
    • Organizer
      第82回日本生化学会
    • Place of Presentation
      神戸
    • Related Report
      2009 Annual Research Report

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Published: 2009-04-01   Modified: 2016-04-21  

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