• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

A Newly Integrated Model for Intestinal Cholesterol Absorption and Efflux Reappraises How Plant Sterol Intake Reduces Circulating Cholesterol Levels

Research Project

Project/Area Number 16K00864
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Eating habits
Research InstitutionSaitama Medical University

Principal Investigator

NAKANO TAKANARI  埼玉医科大学, 医学部, 講師 (20406474)

Co-Investigator(Kenkyū-buntansha) 井上 郁夫  埼玉医科大学, 医学部, 教授 (60232526)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords植物ステロール / コレステロール / 高コレステロール血症 / 小腸 / Niemann-Pick C1-like 1 / ABCG5/G8 / Caco-2細胞 / 腸管 / 微絨毛 / 脂質異常症 / 機能性食品
Outline of Final Research Achievements

Intake of plant sterols/stanols (PSs) inhibits intestinal cholesterol absorption,thereby ameliorates hypercholesterolemia. However, the underlying mechanisms have not been clarified. In the present study, we show that PSs promote intestinal cholesterol efflux, which resulting in limited cholesterol absorption.
PSs are taken up into the brush border membranes of the enterocytes similar to cholesterol. PSs inhibit cholesterol endocytosis into the cell interior for further metabolic/trafficking processes.This inhibition stimulates the opposite flux to the lumen to eliminate cholesterol in the brush border membranes together with PSs.

Academic Significance and Societal Importance of the Research Achievements

欧米の学会では植物ステロール摂取についての提言がなされ、動脈硬化抑制の機能性食品として有効に活用することが模索されている。また植物ステロールのサプリメントも本邦でも近年小売店で見かけられる様になった。しかしながらその有用性の理解や作用機序の説明には曖昧な点が多くあった。本研究はその作用機序を明らかにし、その有用性を理解した上で適切な摂取を行う上での学術的基盤を提供した。

Report

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

    (5 results)

All 2019 2018 2017

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (3 results)

  • [Journal Article] A Newly Integrated Model for Intestinal Cholesterol Absorption and Efflux Reappraises How Plant Sterol Intake Reduces Circulating Cholesterol Levels2019

    • Author(s)
      Takanari Nakano, Ikuo Inoue, Takayuki Murakoshi
    • Journal Title

      Nutrients

      Volume: 11 Issue: 2 Pages: 310-317

    • DOI

      10.3390/nu11020310

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Luminal plant sterol promotes brush border membrane-to-lumen cholesterol efflux in the small intestine2018

    • Author(s)
      Nakano Takanari、Inoue Ikuo、Takenaka Yasuhiro、Ikegami Yuichi、Kotani Norihiro、Shimada Akira、Noda Mitsuhiko、Murakoshi Takayuki
    • Journal Title

      Journal of Clinical Biochemistry and Nutrition

      Volume: 63 Issue: 2 Pages: 102-105

    • DOI

      10.3164/jcbn.17-116

    • NAID

      130007480039

    • ISSN
      0912-0009, 1880-5086
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 植物ステロールは腸管経由コレステロール逆輸送を促進する2018

    • Author(s)
      中野 貴成, 井上 郁夫, 竹中 康浩, 池上 裕一, 小谷 典弘, 島田 朗, 野田 光彦, 村越 隆之
    • Organizer
      第61回糖尿病学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 腸上皮微絨毛におけるコレステロール両極性フラックスとトランスポーター2018

    • Author(s)
      中野 貴成, 井上 郁夫, 竹中 康浩, 小谷 典弘, 島田 朗, 野田 光彦, 村越 隆之
    • Organizer
      第3回トランスポーター研究会関東部会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Ezetimibe Promotes Brush Border Membrane (BBM)-to-Lumen Cholesterol Efflux in the Small Intestine2017

    • Author(s)
      Takanari Nakano,Ikuo Inoue,Yasuhiro Takenaka,Hiraku Ono, Shigehiro Katayama,Takuya Awata,Takayuki Murakoshi
    • Organizer
      生命科学系学会合同年次大会
    • Related Report
      2017 Research-status Report

URL: 

Published: 2016-04-21   Modified: 2020-03-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi