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A novel carrier protein for sphingosine 1-phosphate

Research Project

Project/Area Number 16K08576
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field General medical chemistry
Research InstitutionGunma University

Principal Investigator

Obinata Hideru  群馬大学, 未来先端研究機構, 准教授 (50332557)

Research Collaborator Hla Timothy  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords生理活性脂質 / 受容体 / リポタンパク質 / 脂質輸送 / 生理活性資質 / スフィンゴシン1リン酸 / アポリポタンパク質 / 質量分析 / スフィンゴシン1リン酸 / タンパク質精製 / アポリポタンパク / HDL / スフィンゴシン / アポリポプロテイン
Outline of Final Research Achievements

Sphingosine 1-phosphate (S1P) is a lipid mediator found in the circulation, and contributes to the vascular homeostasis. S1P is carried either by Apolipoprotein M on high density lipoprotein or serum albumin, but there are several evidences which indicate the existence of other S1P carriers in the circulation. In this study, I identified a novel S1P carrier in the plasma from Apolipoprotein M/albumin-double knockout mice by the protein fractionation and shot-gun proteomic analysis, and characterized functions of the novel protein as a S1P carrier inn comparison with Apolipoprotien M and albumin.

Academic Significance and Societal Importance of the Research Achievements

S1Pは正常な免疫系や血管機能の維持において重要な役割を果たす生理活性脂質であり、動脈硬化症など血管の慢性炎症性疾患の発症・進展にも深く関わっている。したがって、S1Pの生理機能の制御機構を解明することは、これら炎症性疾患の治療薬の開発や病因の解明に貢献すると考えらえる。S1Pは脂質性の生理活性脂質であるため、血液中の循環には担体分子が必要となり、標的細胞での機能発揮にもS1P担体分子と受容体の相互作用が重要な役割を果たす。本研究は、新たなS1P担体分子を同定し生理機能の検討を行うことで、S1Pの輸送機構に関する新たな知見を提示した。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (7 results)

All 2019 2018 2017 Other

All Int'l Joint Research (3 results) Journal Article (1 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results) Presentation (2 results) Book (1 results)

  • [Int'l Joint Research] ハーバード大学(米国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] ハーバード大学(米国)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] Cornell University(米国)

    • Related Report
      2016 Research-status Report
  • [Journal Article] Sphingosine 1-phosphate and inflammation2019

    • Author(s)
      Hideru Obinata and Timothy Hla
    • Journal Title

      International Immunology

      Volume: 印刷中 Issue: 9 Pages: 617-625

    • DOI

      10.1093/intimm/dxz037

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Novel S1P chaperone activity in the plasma from ApoM/albumin-double knockout mice2018

    • Author(s)
      Obinata H, Wada Y, Kuo A, Swendeman SL, Liu C, Izumi T, and Hla T.
    • Organizer
      日本分子生物学会年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Exploration of novel sphingosine 1 phosphate carrier proteins2017

    • Author(s)
      Wada Y, Obinata H, Swendeman SL, Liu CH, Nagumo R, Hla T, and Izumi T.
    • Organizer
      Consortium of Biological Sciences 2017
    • Related Report
      2017 Research-status Report
  • [Book] 脂質クオリティ(有田誠編集)2018

    • Author(s)
      大日方英(共著)
    • Total Pages
      220
    • Publisher
      羊土社
    • ISBN
      9784758103718
    • Related Report
      2018 Annual Research Report

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Published: 2016-04-21   Modified: 2022-02-21  

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