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Establishment of intracellular suger imaging

Research Project

Project/Area Number 17K19417
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Research Field Biology of Cells to Organisms, and related fields
Research InstitutionNational Center for Global Health and Medicine

Principal Investigator

Shimura Mari  国立研究開発法人国立国際医療研究センター, その他部局等, その他 (90226267)

Project Period (FY) 2017-06-30 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2017: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Keywords細胞内糖質 / イメージング / 糖質代謝 / 放射光 / 一原子ラベル / 蛍光X線 / 顕微鏡 / 高分解 / 細胞内元素イメージング / 糖質 / 瞬間凍結乾燥法 / 糖質可視化 / 細胞内イメージング / シンクロトロン放射光 / 脂質 / 高分解像 / 糖 / 1原子ラベル / X線顕微鏡 / 可視化 / オルガネラ
Outline of Final Research Achievements

This study aimed to visualize intracellular sugar and the derivatives. Generally, imaging small molecules in cells is complicated due to hard labeling to see without alternations of cellular functions. We labelled a single element with a glucose and apply it for cells. After cellular uptake, signals from the labeled element were obtained by our developed synchrotron X-ray fluorescence microscopy (SXFM). Although we could obtain the cellular distribution of the labeled glucose, over 90% of glucose was lost due to paraformaldehyde fixation. We then established a flash freezing & drying method that can keep cellular component including glucose as close to nature as possible. Now, we are waiting for the use of synchrotron facility after the pandemic infection. Once it is opened, we will finalize this study and publishing to show the possibility of a single element labeling combined with synchrotron X-ray fluorescence microscopy for intracellular sugar derivatives.

Academic Significance and Societal Importance of the Research Achievements

糖質など細胞内小分子の可視化は、一般に困難である。小分子は、より大きな分子の抗体や蛍光物質によるラベル化より、本来機能が失われることが多く、一方、ラベルしない方法(質量分析法など)では、分解能が十分得られない。そこで本研究では、物質の最小単位である1原子をラベルした糖質を細胞に取り込ませ、独自に開発した蛍光X線顕微鏡(SXFM)より、糖質の細胞内可視化に至った。本研究グループは、これまでに脂肪酸小分子の細胞内可視化にも成功している。糖質や脂肪酸の細胞内代謝の可視化法を提案することで、健康や病気予防に貢献する。

Report

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

    (19 results)

All 2020 2019 2018 2017 Other

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (14 results) (of which Int'l Joint Research: 4 results,  Invited: 10 results) Book (2 results) Remarks (1 results) Funded Workshop (1 results)

  • [Journal Article] Development of X-ray imaging of intracellular elements and structure2020

    • Author(s)
      Matsuyama S, Maeshima K, and Shimura M
    • Journal Title

      JAAS

      Volume: - Issue: 7 Pages: 1279-1294

    • DOI

      10.1039/d0ja00128g

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Presentation] Approach to the patient survival of malignancies with trace elements2019

    • Author(s)
      Mari Shimura
    • Organizer
      International Conference of Metallomics 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 蛍光X線顕微鏡による細胞内元素高分解イメージング2019

    • Author(s)
      志村 まり
    • Organizer
      地球化学会年会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 走査型蛍光X線顕微鏡による細胞内元素イメージングと医学応用,2019

    • Author(s)
      志村 まり
    • Organizer
      第92回生化学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 蛍光X線顕微鏡システムによる細胞内元素イメージングと生物医学応用2019

    • Author(s)
      志村 まり
    • Organizer
      メタロバイオサイエンス研究会2019
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 蛍光X線顕微鏡システムによる細胞内元素イメージングと医学応用2019

    • Author(s)
      志村 まり
    • Organizer
      第13回岐阜薬科大学薬物治療学セミナー
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 細胞内元素イメージングと臨床応用2018

    • Author(s)
      志村まり
    • Organizer
      メタルバイオサイエンス研究会 2018
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] X線によりわかることー医学生物応用ー2017

    • Author(s)
      志村まり
    • Organizer
      第25回SPring-8/ SACLA 施設公開
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] 蛍光X線顕微鏡による細胞内元素の高分解イメージングの試み2017

    • Author(s)
      志村まり
    • Organizer
      第27回金属の関与する生体関連反応シンポジウム
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] Imaging of Intracellular Fatty Acids by a Single Element Labeling.2017

    • Author(s)
      Mari Shimura
    • Organizer
      Metallomics
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] X線顕微鏡で観る-医学生物応用, 特別公演II2017

    • Author(s)
      志村まり
    • Organizer
      第28回日本臨床口腔病理学会総会
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] X線によりわかることー医学,生物応用ー2017

    • Author(s)
      志村まり
    • Organizer
      JASIS
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] 走査型蛍光X線顕微鏡を用いた基礎医学研究2017

    • Author(s)
      志村まり
    • Organizer
      第9回放射光基礎講習会
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] Visualization of Intracellular Elements by Scanning X-ray Fluorescence Microscopy-Application for Cell Biology and Medicine,2017

    • Author(s)
      Mari Shimura
    • Organizer
      APWC 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Application in Cell Biology and Medicine using X-ray.2017

    • Author(s)
      Mari Shimura
    • Organizer
      APWC post conference
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Book] 腎臓内科, 元素イメージング① 傾向X線顕微鏡による細胞内元素の高分解イメージングの試み2019

    • Author(s)
      松山智至、志村まり
    • Total Pages
      9
    • Publisher
      科学評論社
    • Related Report
      2019 Annual Research Report
  • [Book] Metallomics, Ogura and Hirata edition2017

    • Author(s)
      Shimura M, Szyrwiel L, Matsuyama S and Yamauchi K
    • Total Pages
      30
    • Publisher
      Springer
    • ISBN
      9784431564614
    • Related Report
      2017 Research-status Report
  • [Remarks] Visualization of Intracellular elements

    • URL

      http://www.rincgm.jp/individual/lab05/en/project/saibou.html

    • Related Report
      2017 Research-status Report
  • [Funded Workshop] APWC 20172017

    • Related Report
      2017 Research-status Report

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Published: 2017-07-21   Modified: 2021-02-19  

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