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Reconstruction of sterol metabolic pathways based on the discovery of novel glycosylated sterols in the brain

Research Project

Project/Area Number 16K14687
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Structural biochemistry
Research InstitutionInstitute of Physical and Chemical Research

Principal Investigator

Hirabayashi Yoshio  国立研究開発法人理化学研究所, 開拓研究本部, 客員主管研究員 (90106435)

Project Period (FY) 2016-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywordsステロール / 糖化ステロール / 糖脂質 / グルコシルセラミド / 脳内ステロール代謝 / 神経変性疾患
Outline of Final Research Achievements

We focused on novel sterol metabolites, glycosylated sterols that we discovered in vertebrate brain, and verified whether unreported sterol metabolic pathways exist in the brain. Structural analysis of the glycosylated sterols revealed for the first time that glycolipids, in which glucose and galactose are bound to cholesterol and a plant sterol, are present in the brain. Their synthesis and degradation were found to be mediated by glucosylceramide-degrading enzymes, whose involvement in sterol metabolism was not previously reported.

Academic Significance and Societal Importance of the Research Achievements

脳内新規糖化ステロール群の合成・分解を担うことが明らかになったグルコシルセラミド分解酵素は、その機能不全がパーキンソン病や小脳失調などの神経変性疾患の原因となる。脳内新規糖化ステロール群の代謝調節という新しい機能に着目することにより、グルコシルセラミド分解酵素の機能不全が神経変性疾患を引き起こすメカニズムを明らかにすることできる可能性があり、本研究成果の学術的・社会的意義は大きい。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (18 results)

All 2020 2019 2018 2017 2016 Other

All Int'l Joint Research (1 results) Journal Article (5 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 4 results,  Open Access: 2 results) Presentation (12 results) (of which Int'l Joint Research: 2 results,  Invited: 2 results)

  • [Int'l Joint Research] ライデン大学(オランダ)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Glucocerebrosidases catalyze a transgalactosylation reaction that yields a newly-identified brain sterol metabolite, galactosylated cholesterol2020

    • Author(s)
      Akiyama, H., Ide, M., Nagatsuka, Y., Sayano, T., Nakanishi, E., Uemura, N., Yuyama, K., Yamaguchi, Y., Kamiguchi, H., Takahashi, R., Aerts, J. M. F. G., Greimel, P. and Hirabayashi, Y
    • Journal Title

      Journal of Biological Chemistry

      Volume: 295 Issue: 16 Pages: 5257-5277

    • DOI

      10.1074/jbc.ra119.012502

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Regulatory mechanism of sterylglucoside metabolism by glucocerebrosidase2018

    • Author(s)
      秋山央子, 平林義雄
    • Journal Title

      生化学

      Volume: 90 Issue: 3 Pages: 399-402

    • DOI

      10.14952/SEIKAGAKU.2018.900399

    • NAID

      40021622671

    • ISSN
      0037-1017
    • Year and Date
      2018-06-25
    • Related Report
      2018 Research-status Report
  • [Journal Article] A novel function for glucocerebrosidase as a regulator of sterylglucoside metabolism2017

    • Author(s)
      Akiyama H. and Hirabayashi Y
    • Journal Title

      Biochim. Biophys. Acta.

      Volume: 1861 Issue: 10 Pages: 2507-2514

    • DOI

      10.1016/j.bbagen.2017.06.003

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Aglycon diversity of brain sterylglucosides: Structure determination of cholesteryl- and sitosterylglucoside.2016

    • Author(s)
      Akiyama H, Nakajima K, Itoh Y, Sayano T, Ohashi Y, Yamaguchi Y, Greimel, P, Hirabayashi Y.
    • Journal Title

      J Lipid Res.

      Volume: 57 Issue: 11 Pages: 2061-72

    • DOI

      10.1194/jlr.m071480

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 脳における新たなステロール代謝経路:糖化ステロール群の発見2016

    • Author(s)
      秋山央子,平林義雄
    • Journal Title

      JSBMS Letters

      Volume: 41 Pages: 43-46

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Presentation] Newly identified brain sterol metabolite glycosylated sterols are metabolized by β-glucocerebrosidase 1 and 2 in vivo2019

    • Author(s)
      Hisako Akiyama, Mitsuko Ide, Etsuro Nakanishi, Norihito Uemura, Yoshiki Yamaguchi, Hiroyuki Kamiguchi, Ryosuke Takahashi, Peter Greimel and Yoshio Hirabayashi
    • Organizer
      25th International Symposium on Glycoconjugates
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] グルコシルセラミド分解酵素による新規脳内ステロール代謝物・ステロール配糖体の代謝制御2019

    • Author(s)
      秋山央子、井手三津子、中西悦郎、上村紀仁、山口芳樹、Peter Greimel、上口裕之、高橋良輔、平林義雄
    • Organizer
      第92回 日本生化学会大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Generation of cholesteryl glycosides by metabolic crosstalk between cholesterol and glycosphingolipid, and its biological implication2019

    • Author(s)
      平林義雄
    • Organizer
      第92回 日本生化学会大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] ナゾの脳脂質、スフィンゴ脂質の発見から135年 - 新たなナゾへの挑戦 -2019

    • Author(s)
      平林義雄
    • Organizer
      ヘルスフードEXPO セラミド研究出版記念講演
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] グルコシルセラミド分解酵素による脳内ステロール配糖体群の代謝制御2018

    • Author(s)
      秋山央子、井手三津子、佐矢野智子、中西悦郎、上村紀仁、Peter Greimel、高橋良輔、平林義雄
    • Organizer
      第60回日本脂質生化学会
    • Related Report
      2018 Research-status Report
  • [Presentation] Identification of novel brain sterol metabolite galactosylated cholesterol synthesized by glucocerebrosidases2018

    • Author(s)
      Hisako Akiyama, Yasuko Nagatsuka, Tomoko Sayano, Mitsuko Ide, Yoshiki Yamaguchi, Peter Greimel, Yoshio Hirabayashi
    • Organizer
      Glycolipid & Sphingolipid Biology, Gordon Research Conference
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 脳における多様なステリルグリコシド:コレステロールおよび植物ステロール配糖体の完全構造決定2017

    • Author(s)
      秋山央子、中嶋和紀、伊藤喜之、佐矢野智子、大橋陽子、山口芳樹、Peter Greimel、平林義雄
    • Organizer
      第65回質量分析総合討論会
    • Related Report
      2017 Research-status Report
  • [Presentation] ステロールとスフィンゴ脂質の代謝的クロストークが生み出す新たな糖脂質2017

    • Author(s)
      秋山央子、中嶋和紀、佐矢野智子、大橋陽子、山口芳樹、Peter Greimel、平林義雄
    • Organizer
      第59回日本脂質生化学会
    • Related Report
      2017 Research-status Report
  • [Presentation] 新規脳内糖化ステロール群の発見:多様なステロールおよび糖鎖構造2017

    • Author(s)
      秋山央子、中嶋和紀、佐矢野智子、長塚靖子、山口芳樹、Peter Greimel、平林義雄
    • Organizer
      第36回日本糖質学会
    • Related Report
      2017 Research-status Report
  • [Presentation] HILIC-MS/MSを用いたパーキンソン病に関与する新規脳内糖脂質の発見2016

    • Author(s)
      秋山央子、中嶋和紀、伊藤喜之、佐矢野智子、長塚靖子、大橋陽子、山口芳樹、Peter Greimel、平林義雄
    • Organizer
      第41回日本医用マススペクトル学会年会
    • Place of Presentation
      ウインクあいち (愛知県・名古屋市)
    • Year and Date
      2016-09-15
    • Related Report
      2016 Research-status Report
    • Invited
  • [Presentation] パーキンソン病発症因子・酸性グルコシルセラミド分解酵素GBA1の新規糖脂質代謝産物の発見2016

    • Author(s)
      秋山央子、中嶋和紀、伊藤喜之、佐矢野智子、長塚靖子、大橋陽子、山口芳樹、Peter Greimel、平林義雄
    • Organizer
      第35回日本糖質学会年会
    • Place of Presentation
      高知市文化プラザ かるぽーと (高知県・高知市)
    • Year and Date
      2016-09-01
    • Related Report
      2016 Research-status Report
  • [Presentation] パーキンソン病に関与する新規脳内糖化ステロールの発見2016

    • Author(s)
      秋山央子、中嶋和紀、伊藤喜之、佐矢野智子、長塚靖子、大橋陽子、山口芳樹、Peter Greimel、平林義雄
    • Organizer
      第58回日本脂質生化学会
    • Place of Presentation
      にぎわい交流館AU (秋田県・秋田市)
    • Year and Date
      2016-06-09
    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2021-02-19  

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