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Physsiological role of LPL in sdLDL production

Research Project

Project/Area Number 17K08974
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Laboratory medicine
Research InstitutionGunma University

Principal Investigator

Kimura Takao  群馬大学, 大学院医学系研究科, 准教授 (90396656)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords脂質代謝 / 中性脂肪 / レムナント / sdLDL / LPL / GPIHBP1 / HTGL / 動脈硬化症 / 冠動脈疾患 / RLP-C / リパーゼ / リポ蛋白リパーゼ / 小粒子高比重LDL
Outline of Final Research Achievements

The LPL playing a central role of the lipid metabolism exists on the blood vessel wall by GPIHBP which is anchor protein and promotes metabolism of RLP-C and sdLDL-C. The LPL concentration was positively correlated with HDL-C, and inversely correlated with TG and RLP-C. The HTGL concentration was positively correlated with RLP-C and sdLDL-C. The HTGL ratio of the pre-heparin/post-heparin plasma concentration and sdLDL-C/LDL-C ratio were significantly greater in coronary artery disease (CAD) patients than in non-CAD patients. GPIHBP1 was positively correlated with LPL and inversely correlated with RLP-C and sdLDL-C. The HTGL concentration was positively correlated with RLP-C and sdLDL-C, while LPL and GPIHBP1 were inversely correlated with RLP-C and sdLDL-C. These results suggest that elevated HTGL is associated with increased CAD risk, while elevated LPL is associated with a reduction of CAD risk.

Academic Significance and Societal Importance of the Research Achievements

我々はこれまでヘパリン投与が必要であった血中のLPLとHTGL濃度の評価がヘパリン投与なしで可能になる測定系を開発し、短時間で大量の検体のLPLおよびHTGL濃度の測定を可能にした。この測定系を利用して冠動脈疾患の患者では冠動脈疾患の無い患者に比べHTGLが高いこと、更にLPLとそのアンカー蛋白であるGPIHBP1が高いほど、冠動脈疾患の原因となる脂質であるsdLDLやRLP-Cの血中濃度が低いことを明らかにした。冠動脈疾患のリスクを減少させるには血中のLPL濃度を高くし、HTGL濃度を低くすることが重要であることが示唆された。

Report

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

    (8 results)

All 2019 2018 2017

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 4 results) Presentation (4 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] Association between skeletal muscle mass and serum concentrations of lipoprotein lipase, GPIHBP1, and hepatic triglyceride lipase in young Japanese men.2019

    • Author(s)
      Matsumoto R, Tsunekawa K, Shoho Y, Yanagawa Y, Kotajima N, Matsumoto S, Araki O, Kimura T, Nakajima K, Murakami M
    • Journal Title

      Lipids Health Dis.

      Volume: 18 Issue: 1 Pages: 84-92

    • DOI

      10.1186/s12944-019-1014-7

    • Related Report
      2019 Annual Research Report 2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Prolonged plasma glucose elevation on oral glucose tolerance test in young healthy Japanese individuals2019

    • Author(s)
      Ishigaki Hirotaka、Yoshida Akihiro、Araki Osamu、Kimura Takao、Tsunekawa Katsuhiko、Shoho Yoshifumi、Nara Makoto、Aoki Tomoyuki、Ogiwara Takayuki、Murakami Masami
    • Journal Title

      Endocrinology, Diabetes & Metabolism

      Volume: 3 Issue: 1 Pages: 1-7

    • DOI

      10.1002/edm2.98

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] An automated method for measuring lipoprotein lipase and hepatic triglyceride lipase activities in post-heparin plasma.2018

    • Author(s)
      Nakajima K, Machida T, Imamura S, Kawase D, Miyashita K, Fukamachi I, Maeda M, Muraba Y, Koga T, Kobayashi J, Kimura T, Nakajima K, Murakami M.
    • Journal Title

      Clin Chim Acta.

      Volume: 487 Pages: 54-59

    • DOI

      10.1016/j.cca.2018.09.022

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] The role of plasma lipoprotein lipase, hepatic lipase and GPIHBP1 in the metabolism of remnant lipoproteins and small dense LDL in patients with coronary artery disease.2018

    • Author(s)
      15.Muraba Y, Koga T, Shimomura Y, Ito Y, Hirao Y, Kobayashi J, Kimura T, Nakajima K, Murakami M.
    • Journal Title

      Clin Chim Acta.

      Volume: 476 Pages: 146-153

    • DOI

      10.1016/j.cca.2017.11.021

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 冠動脈疾患患者におけるヘパリン投与前後の血漿中レムナントリポ蛋白、sdLDL、LPLおよびHTGL濃度の解析2018

    • Author(s)
      木村孝穂、村場祐司、中嶋克之、町田哲男、村上正巳
    • Organizer
      第58回日本臨床化学会年次学術集会
    • Related Report
      2018 Research-status Report
  • [Presentation] The relationship between lipoprotein lipase and hepatic lipase and lipoprotein levels in coronary artery disease2017

    • Author(s)
      Yuji Muraba, Takafumi Koga, Yohnosuke Shimomura, Yasuki Ito, Yuko Hirao, Takao Kimura, Katsuyuki Nakajima, Masami Murakami
    • Organizer
      2017年度ヨーロッパ動脈硬化学会(EAS87)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] The relationship between hepatic lipase and small dense LDL-C in patients with coronary artery disease.2017

    • Author(s)
      Yuji Muraba, Takafumi Koga, Yohnosuke Shimomura, Takao Kimura, Katsuyuki Nakajima, Osamu Araki, Katsuhiko Tsunekawa, Tetsuo Machida, Masami Murakami
    • Organizer
      第29回世界病理臨床検査医学会議
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Plasma GPIHBP1 levels in cases with cardiovascular disease.2017

    • Author(s)
      Yuji Muraba, Takafumi Koga, Yohnosuke Shimomura, Takao Kimura, Katsuyuki Nakajima, Osamu Araki, Katsuhiko Tsunekawa, Tetsuo Machida, Masami Murakami
    • Organizer
      第29回世界病理臨床検査医学会議
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research

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

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