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Development of photosensitizer delivery systems targeting tumor-associated amino acid transporters

Research Project

Project/Area Number 20K20196
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 90120:Biomaterials-related
Research InstitutionTokyo Institute of Technology

Principal Investigator

Nomoto Takahiro  東京工業大学, 科学技術創成研究院, 助教 (00734732)

Project Period (FY) 2020-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2020: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords薬物送達技術 / 光線力学療法 / アミノ酸トランスポーター / 高分子 / ドラッグデリバリーシステム
Outline of Research at the Start

光線力学療法(PDT)において、光増感剤を迅速に腫瘍だけに集積させ、正常組織や血中からは即座に排出させることが極めて重要だが、従来の薬物送達システム(DDS)設計ではその両方を同時に達成するのは困難である。そこで本研究では、従来のアプローチとは異なる方法でがん関連アミノ酸トランスポーターを標的とした迅速腫瘍集積と早期血中消失を同時に実現するDDSを開発する。

Outline of Final Research Achievements

This research project was aimed at developing a drug delivery system (DDS) targeting tumor-associated amino acid transporters. A polymer was synthesized as the backbone of the DDS and molecules with structures similar to the substrates of the amino acid transporters were conjugated with the side chains of the polymer. When molecules with certain amino acid structures were introduced into the side chain, the DDS was recognized by the tumor-associated amino acid transporter and selectively accumulated within tumors. It was also demonstrated that this DDS should be useful for photodynamic therapy.

Academic Significance and Societal Importance of the Research Achievements

腫瘍関連アミノ酸トランスポーターを標的としたDDSの構築に成功し、そのDDSを用いてマウス腫瘍モデルに対して光線力学療法を行ったところ、有意な腫瘍増殖抑制効果が得られることが明らかとなった。また、本DDSの設計についても構造の微調整が最終的な活性に大きく影響することも明らかにした。これらの知見は新たな医療モダリティを開発するにあたり有用なものであると期待される。

Report

(2 results)
  • 2021 Final Research Report ( PDF )
  • 2020 Research-status Report
  • Research Products

    (6 results)

All 2021 2020

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (3 results) (of which Invited: 2 results)

  • [Journal Article] Photodynamic therapy using LCST polymers exerting pH-responsive isothermal phase transition2020

    • Author(s)
      S. Muttaqien, T. Nomoto*, X. Dou, H. Takemoto, M. Matsui, N. Nishiyama*
    • Journal Title

      J. Control. Release

      Volume: 328 Pages: 608-616

    • DOI

      10.1016/j.jconrel.2020.09.036

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Potential urinary monitoring of the enhanced permeability and retention effect using MMP-2-responsive poly(ethylene glycol) derivatives2020

    • Author(s)
      X. Sun, T. Nomoto, H. Takemoto, M. Matsui, H. Guo, Y. Sun, Y. Miura, N. Nishiyama*
    • Journal Title

      J. Control. Release

      Volume: 329 Pages: 513-523

    • DOI

      10.1016/j.jconrel.2020.09.004

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Iron chelation cancer therapy using hydrophilic block copolymers conjugated with deferoxamine2020

    • Author(s)
      K. Komoto, T. Nomoto*, S. Muttaqien, H. Takemoto, M. Matsui, Y. Miura, N. Nishiyama*
    • Journal Title

      Cancer Sci.

      Volume: 112 Issue: 1 Pages: 410-421

    • DOI

      10.1111/cas.14607

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] 超低侵襲ケミカルサージェリーを目指した高分子コンジュゲート型DDSの設計2021

    • Author(s)
      野本貴大
    • Organizer
      日本薬学会第141年会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Drug delivery using functional polymer-conjugates2021

    • Author(s)
      Takahiro Nomoto
    • Organizer
      Topical Meeting on Condensed-Matter Chemistry on Actinides
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] 多価環状RGDペプチド担持高分子型光増感剤によるphotochemical internalizationの検討2020

    • Author(s)
      野本貴大、Dou Xuebo、武元宏泰、西山伸宏
    • Organizer
      LASER WEEK IN KOCHI
    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2025-01-30  

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