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Analyses of physiological functions of lipoproteins focusing on functional lipid contents and evaluation of their effects on lifestyle-related diseases

Research Project

Project/Area Number 22K19643
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 58:Society medicine, nursing, and related fields
Research InstitutionThe University of Tokyo

Principal Investigator

Yamanashi Yoshihide  東京大学, 医学部附属病院, 講師 (20582018)

Project Period (FY) 2022-06-30 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2023: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2022: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
KeywordsLDL / 機能性脂質 / 動脈硬化症 / 非アルコール性脂肪肝
Outline of Research at the Start

本研究は脂質異常症に伴い、そのリポ蛋白質分布パターンがHDLからLDLに大きくシフトする機能性脂質に着目し、LDLに分布した当該脂質の生理活性・標的分子・生活習慣病(動脈硬化症や非アルコール性脂肪肝)の病態進行に与える影響を明らかにすべく企画された。得られる成果は、生活習慣病に対する新たなバイオマーカー、予防/治療戦略、創薬標的の提唱に繋がり、公衆衛生および健康科学上の大きな貢献が期待される。

Outline of Final Research Achievements

This study focused on functional lipid X, whose lipoprotein distribution pattern shifts dramatically from HDL to LDL in dyslipidemia, and was designed to clarify the physiological activity, target molecules, and pathophysiological significance of LDL-distributed lipid X (LDL-lipidX).
Our studies have revealed that LDL-lipid X has an inflammation-inducing effect as its physiological activity, and we succeeded in identifying candidate target molecules for the activity. We also succeeded in generating and breeding mice deficient in the genes for the target molecules of LDL-lipid X using the CRISPR-Cas9 system, and obtained the mice necessary for analyzing the pathophysiological significance of LDL-lipid X.

Academic Significance and Societal Importance of the Research Achievements

本研究により、脂質異常症の進行に伴い増加する機能性脂質Xを含む新規LDLサブタイプが炎症惹起作用を有すること、またその標的作用分子の候補が見出された。今後、本研究で作出した標的分子の遺伝子欠損マウスを用いて、当該LDLサブタイプの病態生理学的意義が明らかになることで、生活習慣病に対する新たなバイオマーカー、予防/治療戦略、創薬標的の提唱に繋がる可能性があり、公衆衛生および健康科学上の大きな貢献が期待される。

Report

(3 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • Research Products

    (6 results)

All 2023 2022

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

  • [Journal Article] ABCG5 and ABCG8 Are Involved in Vitamin K Transport2023

    • Author(s)
      Matsuo Michinori、Ogata Yutaka、Yamanashi Yoshihide、Takada Tappei
    • Journal Title

      Nutrients

      Volume: 15 Issue: 4 Pages: 998-998

    • DOI

      10.3390/nu15040998

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Hepatic Niemann-Pick C1-Like 1 exacerbates non-alcoholic fatty liver disease by re-absorbing specific biliary oxysterols.2022

    • Author(s)
      Yamanashi Y, Takada T, Tanaka Y, Ogata Y, Toyoda Y, Ito SM, Kitani, Oshida N, Okada K, Shoda J, Suzuki H.
    • Journal Title

      Biomed. Pharmacother.

      Volume: 156 Pages: 113877-113877

    • DOI

      10.1016/j.biopha.2022.113877

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Niemann-Pick C1-Like 1による非アルコール性脂肪肝の発症・増悪に関わる酸化ステロールの胆汁排泄制御2023

    • Author(s)
      山梨 義英、高田 龍平、田中 悠介、緒方 裕、豊田 優、伊藤(松岡) 紗代、木谷 真依子、押田 夏海、岡田 浩介、正田 純一、鈴木 洋史
    • Organizer
      第55回日本動脈硬化学会総会・学術集会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Hepatic NPC1L1 exacerbates NAFLD by suppressing biliary excretion of oxysterols2023

    • Author(s)
      Yamanashi Y, Tanaka Y, Ogata Y, Toyoda Y, Ito S, Kitani M, Oshida N, Okada K, Shoda J, Suzuki H, Takada T
    • Organizer
      2023 International Joint Meetings of the 23rd International Conference on Cytochrome P450 and the 38th Annual Meeting of the Japanese Society for the Study of Xenobiotics in Shizuoka
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] コレステロール吸収輸送体NPC1L1の病態生理学的役割2023

    • Author(s)
      山梨 義英、緒方 裕、豊田 優、伊藤 紗代、高田 龍平
    • Organizer
      第96回日本生化学会大会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 肝臓のNPC1L1による酸化ステロールの胆汁排泄抑制と非アルコール性脂肪肝の増悪2023

    • Author(s)
      山梨義英、高田龍平、田中悠介、緒方裕、豊田優、伊藤紗代、木谷真依子、押田夏海、岡田浩介、正田純一、鈴木洋史
    • Organizer
      日本薬学会 第143年会
    • Related Report
      2022 Research-status Report

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Published: 2022-07-05   Modified: 2025-01-30  

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