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Molecular mechanisms of the biogenesis and secretion of large lipoprotein particles

Research Project

Project/Area Number 17K19377
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Research Field Biology of Cells to Organisms, and related fields
Research InstitutionGunma University

Principal Investigator

Sato Ken  群馬大学, 生体調節研究所, 教授 (30311343)

Research Collaborator Saegusa Keiko  
Project Period (FY) 2017-06-30 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2018: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2017: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywordsリポタンパク質 / 分泌 / 小胞体 / 積み荷受容体 / 線虫 / 細胞・組織 / 脂質 / 蛋白質
Outline of Final Research Achievements

We found that SFT-4/Surf4 family proteins are required for endoplasmic reticulum (ER) exit of soluble cargo proteins including apolipoproteins in C. elegans and mammalian cultured cells. SFT-4/Surf4 family proteins localize to the ER exit sites and interact with apolipoproteins. These results suggest that SFT-4/Surf4 family proteins function as cargo receptors for soluble proteins in animals.

Academic Significance and Societal Importance of the Research Achievements

本研究により,これまで不明であったリポタンパク質の分泌における新たな仕組みが明らかになるとともに,カイロミクロン停滞症のような脂質異常症の病因の解明にもつながることが期待されます.また,ヒトのSurf4は体内のコレステロール量を調節する新規薬剤のターゲットになる可能性があります.さらに,本研究により線虫がリポタンパク質の生合成及び分泌のメカニズムの解明やこれらを調節する薬剤探索をするのに有効なツールとして活用できることが明らかとなりました.

Report

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

    (5 results)

All 2018 2017

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

  • [Journal Article] SFT-4/Surf4 control ER export of soluble cargo proteins and participate in ER exit site organization.2018

    • Author(s)
      Saegusa K, Sato M, Morooka N, Hara T, Sato K
    • Journal Title

      J Cell Biol.

      Volume: 印刷中 Issue: 6 Pages: 2073-2085

    • DOI

      10.1083/jcb.201708115

    • Related Report
      2018 Annual Research Report 2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] SFT-4, a cargo receptor homolog, is required for ER exit of solubule proteins including lipoproteins2018

    • Author(s)
      Keiko Saegusa, Miyuki Sato, Katsuya Sato, Nobukatsu Morooka, Taichi Hara, Ken Sato
    • Organizer
      Joint Annual Meeting of JSDB 51st and JSCB 70th
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] リポタンパク質の生合成および分泌を制御する新規因子 SFT-4/Surf4 の機能解析2017

    • Author(s)
      三枝 慶子, 佐藤 美由紀, 原 太一, 佐藤 健
    • Organizer
      第90回日本内分泌学会
    • Related Report
      2017 Research-status Report
  • [Presentation] 線虫 C. elegans におけるリポタンパク質輸送の分子メカニズム2017

    • Author(s)
      佐藤健
    • Organizer
      生命科学系学会合同年次大会
    • Related Report
      2017 Research-status Report
  • [Presentation] リポタンパク質の生合成および分泌を制御する新規因子 SFT-4/Surf4 の機能解析2017

    • Author(s)
      三枝慶子,佐藤美由紀,原太一,佐藤健
    • Organizer
      第69回日本細胞生物学会大会
    • Related Report
      2017 Research-status Report

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Published: 2017-07-21   Modified: 2022-12-28  

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