• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Near-Infrared Theranostic Nanoparticles for Selective Observation and Treatment of Brain Tumor

Research Project

Project/Area Number 18H03538
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 90120:Biomaterials-related
Research InstitutionTokyo University of Science

Principal Investigator

Kamimura Masao  東京理科大学, 基礎工学部材料工学科, 講師 (80706888)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥16,380,000 (Direct Cost: ¥12,600,000、Indirect Cost: ¥3,780,000)
Fiscal Year 2020: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2019: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2018: ¥8,580,000 (Direct Cost: ¥6,600,000、Indirect Cost: ¥1,980,000)
Keywords光線力学療法 / 光温熱療法 / 近赤外光イメージング / セラノスティクス / ナノ粒子 / PDT / PTT / バイオイメージング / 近赤外光 / ナノマシン / 近赤外 / 高分子 / イメージング / がん治療 / 細胞操作
Outline of Final Research Achievements

Photodynamic therapy (PDT) is a cancer treatment method that destroys cancer tissues via photosensitizers and light irradiation. Because of the most of PDT uses visible light for excitation, current PDT suffers from the lack of penetration depth. To solve this problem, we developed photosensitizer immobilized rare-earth-doped ceramic nanophosphors (RED-CNPs) for cancer theranostics. The RED-CNPs show tissue-penetrable over-1000 nm near-infrared (OTN-NIR) and visible upconversion emission under NIR excitation. In addition, upconversion red emission can excite photosensitizers, chlorin e6 (Ce6) and it generates ROS in deep tissue. Furthermore, NIR excitation light also can be used for light source of photothermal therapy (PTT). IR780 dye show effective temperature increasing under NIR light irradiation. The prepared materials showed effective cancer treatment and imaging results. Based on these findings, the obtained material is promising candidate for novel cancer theranostics agent.

Academic Significance and Societal Importance of the Research Achievements

新たながん治療法である光線力学療法 (PDT)は、光照射に応答して活性酸素(ROS)を発生する光増感剤によって腫瘍組織を破壊する治療方法であるが、PDT用の光増感剤は組織透過性が低い可視光に応答してROSを発生するため、既往のPDTは脳内深部まで浸潤したがん細胞を治療することが難しい。また最近では、光照射をトリガーとして腫瘍を加温することで治療する「光温熱療法(PTT)」の併用も検討されているが、やはり光の透過性が問題となっていた。そのため、これらを解決し、人体にほとんど害の無い近赤外光をトリガーとした診断・治療を行う本研究の成果は、がん診断・治療に革新をもたらすことが期待される。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (13 results)

All 2020 2019 2018 Other

All Presentation (12 results) (of which Int'l Joint Research: 3 results,  Invited: 8 results) Remarks (1 results)

  • [Presentation] Near-Infrared Responsive Polymer Nanoparticles for Theranostics2020

    • Author(s)
      Masao Kamimura
    • Organizer
      第30回日本MRS年次大会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Development of Near-Infrared Fluorescent Nanoparticles for in vivo Bioimaging in the Second and Third Biological Window2020

    • Author(s)
      Masao Kamimura, Kohei Soga
    • Organizer
      11th World Biomaterials Congress
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 生体深部を捉える近赤外光駆動型高分子ナノ粒子2020

    • Author(s)
      上村 真生、曽我 公平
    • Organizer
      第69回高分子討論会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 波長1000 nmを超える近赤外蛍光を用いるin vivoイメージング2019

    • Author(s)
      上村真生
    • Organizer
      第44回レーザ顕微鏡研究会&シンポジウム
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Over-1000 nm (OTN) 近赤外光を用いた in vivo イメージング2019

    • Author(s)
      上村真生
    • Organizer
      第23回酸素ダイナミクス研究会・第26回医用近赤外線分光法研究会 合同研究会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Poly(ethylene glycol) Modified Near-Infrared Nanophosphors for Deep Tissue in vivo Bioimaging2019

    • Author(s)
      Masao Kamimura, Kohei Soga
    • Organizer
      OKINAWA COLLOIDS 2019
    • Related Report
      2019 Annual Research Report
  • [Presentation] Polymer Conjugated Fluorescent Nanoparticles for Over-1000 nm Near-Infrared (NIR-II/III) in vivo Imaging2019

    • Author(s)
      Masao Kamimura, Kohei Soga
    • Organizer
      TERMIS-AP + ABMC7 2019
    • Related Report
      2019 Annual Research Report
  • [Presentation] 体内深部を可視化する近赤外光バイオイメージング2019

    • Author(s)
      上村真生
    • Organizer
      第69回医用高分子研究会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Polymer Conjugated Nanophosphors for Over-1000 nm Fluorescence in vivo Imaging2018

    • Author(s)
      Masao Kamimura
    • Organizer
      1st G'L'owing Polymer Symposium in KANTO (GPS-K2018)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 光応答性マテリアルによるバイオ分析法の開発2018

    • Author(s)
      上村真生
    • Organizer
      上村 真生
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Polymer Conjugated Fluorescent Nanoparticles for Over-1000 nm Near-Infrared Bioimaging2018

    • Author(s)
      Masao Kamimura
    • Organizer
      第67回高分子討論会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Near-Infrared Light Triggered Theranostics Based on Polymer Modified Nanophosphors2018

    • Author(s)
      Masao Kamimura, Kohei Soga
    • Organizer
      The 35th International Conference of Photopolymer Science and Technology
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Remarks] 東京理科大学上村真生研究室

    • URL

      https://www.kamimura-lab.jp/

    • Related Report
      2020 Annual Research Report

URL: 

Published: 2018-04-23   Modified: 2022-01-27  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi