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Clarifying the biological role of vitaminC metabolites

Research Project

Project/Area Number 18K14419
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 38050:Food sciences-related
Research InstitutionTohoku University (2020-2021)
Tokyo Medical and Dental University (2018-2019)

Principal Investigator

Miyazawa Taiki  東北大学, 未来科学技術共同研究センター, 准教授 (80814243)

Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Keywordsアスコルビン酸 / ビタミン / 細胞 / 分析化学 / 質量分析 / デヒドロアスコルビン酸 / がん細胞 / 抗酸化物質 / ビタミンC / 代謝 / グルコーストランスポーター / 抗酸化 / 細胞内濃度 / HPLC / 酸化還元 / 抗がん作用 / アポトーシス / 代謝物 / レドックスステータス
Outline of Final Research Achievements

Analytical method was developed to quantify intracellular ascorbic acid, which has not been studied for quantification due to its trace amount. By using this analytical method, different cellular uptake of ascorbic acid and dehydroascorbic acid was confirmed. Furthermore, changes over time in the accumulation of ascorbic acid in cells were found to be involved in the different cell deaths of different cell types.

Academic Significance and Societal Importance of the Research Achievements

HPLC-MS/MSを分析機器として用い、細胞内のアスコルビン酸の濃度を定量可能な分析法を確立した。アスコルビン酸の生理機能は細胞の種類によって異なるはずであり、近年のメタボロミクスや食品学、医薬研究において関心が高まっている。本法により、細胞内のアスコルビン酸の未知なる機能の定量的解明が促進されることが期待される。また、本研究では細胞の細胞死と細胞内の経時的なアスコルビン酸の蓄積に関係があることが見出され、ビタミンCの新たな機能の発見へと繋がることが期待される。

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (11 results)

All 2021 2020 2019 2018

All Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (9 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results)

  • [Journal Article] A critical review of the use of surfactant-coated nanoparticles in nanomedicine and food nanotechnology2021

    • Author(s)
      Taiki Miyazawa, Mayuko Itaya, Gregor C Burdeos, Kiyotaka Nakagawa, Teruo Miyazawa
    • Journal Title

      International Journal of Nanomedicine

      Volume: 16 Pages: 3937-3999

    • DOI

      10.2147/ijn.s298606

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Determination of Intra- and Extra-cellular Vitamin C Dynamics2019

    • Author(s)
      Taiki Miyazawa, Akira Matsumoto, Yuji Miyahara
    • Journal Title

      G.I.T. Laboratory Journal

      Volume: なし

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] Simplest and label-free determination of intra- and extra-cellular vitamin C dynamics by HPLC-DAD2020

    • Author(s)
      Taiki Miyazawa, Akira Matsumoto, Ayano Mukaida, Yuji Miyahara
    • Organizer
      4th International Caparica Christmas Conference on Sample Treatment 2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Elucidation of the anticancer mechanism of vitamin C2020

    • Author(s)
      Ayano Mukaida, Taiki Miyazawa, Akira Matsumoto, Yuji Miyahara,
    • Organizer
      4th International Caparica Christmas Conference on Sample Treatment 2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] 抗がん作用に及ぼすビタミンC酸化体の存在意義の解明2020

    • Author(s)
      向田彩乃、宮澤大樹、松元亮、宮原裕二
    • Organizer
      第74回日本栄養・食糧学会大会
    • Related Report
      2020 Research-status Report
  • [Presentation] 細胞内のビタミンCの酸化還元の関係性2020

    • Author(s)
      宮澤大樹
    • Organizer
      第1回 東北大学&理化学研究所 連携シンポジウム
    • Related Report
      2020 Research-status Report
  • [Presentation] ビタミンCを用いた疾病の治療への取り組み2019

    • Author(s)
      宮澤大樹
    • Organizer
      第25回次世代医工学研究会
    • Related Report
      2019 Research-status Report
  • [Presentation] 細胞内外のビタミンCの代謝と生理作用の解明2019

    • Author(s)
      宮澤大樹
    • Organizer
      第26回次世代医工学研究会
    • Related Report
      2019 Research-status Report
  • [Presentation] Using nutrients and nanomaterials for therapeutic purpose2019

    • Author(s)
      Taiki Miyazawa, Akira Matsumoto, Yuji Miyahara
    • Organizer
      An International Conference on Colloid & Surface Science Celebrating the 70th Anniversary of the Divisional Meeting of Division of Colloid and Surface Chemistry (OKINAWA COLLOIDS 2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Determination of Vitamin C kinetics of cancer cells by HPLC-DAD2019

    • Author(s)
      Taiki Miyazawa, Akira Matsumoto, Yuji Miyahara
    • Organizer
      日本化学会 第99春季年会
    • Related Report
      2018 Research-status Report
  • [Presentation] 疾病の治療に向けたビタミンCの活用の取り組み2018

    • Author(s)
      宮澤大樹
    • Organizer
      Nanobio若手ネットワークシンポジウム
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2023-01-30  

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