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MR-fluorescence dual imaging realizes seamless image support for cancer therapy

Research Project

Project/Area Number 17K01356
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Biomedical engineering/Biomaterial science and engineering
Research InstitutionShiga University of Medical Science

Principal Investigator

Naka Shigeyuki  滋賀医科大学, 医学部, 非常勤講師 (10359771)

Co-Investigator(Kenkyū-buntansha) 谷 眞至  滋賀医科大学, 医学部, 教授 (60236677)
貝田 佐知子  滋賀医科大学, 医学部, 助教 (70710234)
Project Period (FY) 2017-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywordsドラッグデリバリーシステム / ナノミセル / 画像支援 / MRI / 蛍光観察法 / MR・蛍光デュアルイメージング / DDS / EPR効果 / 高分子ナノミセル / 蛍光 / デュアルイメージング法 / 磁気共鳴画像 / 蛍光画像 / デュアルイメージング / デュアルイメージ / MRI・蛍光
Outline of Final Research Achievements

We developed the polymeric nanomicelles (Gd/FD nanomicelle) incorporating a MR contrast media (Gd) and a fluorescent dye (FD). After injecting this nanomicelles into an orthopedic cancer model of rat, we confirmed the accumulation of the nanomicelles to the tumor of the rat by MRI (magnetic resonance imaging) and the fluorescence image. These results suggested the possibility of the MR-fluorescence dual imaging method in the cancer treatment using the Gd/FD nanomicelle by EPR effect (enhanced permeation and retention effect).

Academic Significance and Societal Importance of the Research Achievements

がんに対する外科治療では、術前の進展度診断、術中の画像ナビゲーションによる正確な手術、術後の治療効果の評価が重要である。本研究では、新しい高分子ナノミセル(Gd/FDナノミセル)によるDDS(ドラッグデリバリーシステム)を利用して、MR造影剤と蛍光色素をがん病巣に特異的に集積させることにより、MRIによる術前・術後のがん病巣の評価、蛍光画像による術中の画像支援をシームレスに行い、外科治療をより効果的で侵襲の低いもにすることを目的とした。

Report

(5 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (4 results)

All 2021 2020 2018 2017

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

  • [Journal Article] Feasibility of microwave-based scissors and tweezers in partial hepatectomy: an initial assessment on canine model2021

    • Author(s)
      Khiem Tran Dang, Shigeyuki Naka, Atsushi Yamada, Tohru Tani
    • Journal Title

      Frontiers in Surgery

      Volume: -

    • NAID

      120007119158

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Vessel-Sealing Capability of Novel Microwave Sealer: Experimental Study in Animal Models2020

    • Author(s)
      Dang Khiem Tran、Naka Shigeyuki、Yamada Atsushi、Mukaisho Ken-ichi、Tani Tohru
    • Journal Title

      Surgical Innovation

      Volume: 27 Issue: 6 Pages: 633-643

    • DOI

      10.1177/1553350620937860

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Development of visible-DDS using polymer containing MR contrast agent and fluorescent dye2018

    • Author(s)
      Sachiko Kaida, Qin Changyuan, Dang Tran Khiem, Horacio Cabral, Shigeyuki Naka, Tomoharu Shimizu and Masaji Tani
    • Organizer
      The 56th Annual Meeting of the Japan Society of Clinical Oncology
    • Related Report
      2018 Research-status Report
  • [Presentation] An Accuracy Assessment of Hybrid Image Navigation System with MR and Ultrasound to Assist Needle Puncture2017

    • Author(s)
      A. Yamada, S. Naka, J. Tokuda, T. Tani, S. Morikawa
    • Organizer
      CARS 2017 Computer Assisted Radiology and Surgery
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research

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Published: 2017-04-28   Modified: 2022-01-27  

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