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Development of novel fluorescent probes for brain tumors

Research Project

Project/Area Number 15K19952
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Neurosurgery
Research InstitutionThe University of Tokyo

Principal Investigator

Tanaka Shota  東京大学, 医学部附属病院, 助教 (80643725)

Research Collaborator KITAGAWA Yosuke  
URANO Yasuteru  
MUKASA Akitake  
Project Period (FY) 2015-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2015: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords蛍光プローブ / 脳腫瘍 / 神経膠腫 / 膠芽腫 / 局所噴霧 / 5-アミノレブリン酸 / 脳腫瘍学 / 脳神経疾患 / 薬学 / 有機化学
Outline of Final Research Achievements

A fluorescent probe such as 5-aminolevulinic acid achieves greater extent of resection in glioma surgery and thus serves as a valuable surgical adjunct. However, its sensitivity and specificity are yet to be perfectly satisfactory. Our novel spray-type fluorescent labeling system using green hydroxymethyl rhodamine green (HMRG) probes was tested for glioblastoma. Fresh tumor tissues as well as fresh frozen tissues harvested from glioblastomas resected at our institutions were used for analyses. The probe library included approximately 320 types with different combinations of amino acids attached to HMRG. Fluorescence intensity was measured over time after probes were applied to homogenized lysates made from fresh frozen tissues and then to fresh tumor tissues. Seven fluorescent HMRG-based probes which adequately discerned the tumor area from the peripheral area in many of the cases were selected for further studies.

Report

(4 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (2 results)

All 2018 2017

All Presentation (2 results)

  • [Presentation] 脳腫瘍を標識する噴霧式新規蛍光プローブの開発2018

    • Author(s)
      北川陽介・田中將太・小笠原輝・栗木優五・山本恭子・神谷真子・武笠晃丈・浦野泰照・斉藤延人
    • Organizer
      GSDMプラットフォームセミナー
    • Related Report
      2017 Annual Research Report
  • [Presentation] 脳腫瘍を標識する噴霧式新規蛍光プローブの開発2017

    • Author(s)
      北川陽介・田中將太・小笠原輝・栗木優五・山本恭子・神谷真子・武笠晃丈・浦野泰照・斉藤延人
    • Organizer
      日本脳腫学会
    • Related Report
      2017 Annual Research Report

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Published: 2015-04-16   Modified: 2022-11-04  

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