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Usefulness of imaging tumor-specific enzyme expression by radiopharmaceuticals with thymidine phosphorylase inhibitory potency

Research Project

Project/Area Number 26461802
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Radiation science
Research InstitutionHealth Sciences University of Hokkaido

Principal Investigator

Ohkua Kazue  北海道医療大学, 薬学部, 教授 (60094827)

Co-Investigator(Kenkyū-buntansha) 久下 裕司  北海道大学, アイソトープ総合センター, 教授 (70321958)
河嶋 秀和  京都薬科大学, 薬学部, 准教授 (70359438)
趙 松吉  福島県立医科大学, ふくしま国際医療科学センター, 教授 (80374239)
秋澤 宏行  昭和薬科大学, 薬学部, 教授 (90311795)
Project Period (FY) 2014-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords核医学診断 / 腫瘍 / チミジンホスホリラーゼ / 放射線 / SPECT / 核医学
Outline of Final Research Achievements

Thymidine phosphorylase (TP) is an angiogenic growth factor; it catalyzes the reversible phosphorylation of thymidine to thymine. TP is overexpressed in highly malignant cancers. To identify the cancer malignancy or predict therapeutic effects of anticancer drugs based on the thymidine analog in relation to TP expression levels in tumors, we developed a radio-iodinated uracil derivative with TP inhibitory potency. Here, we elucidated its uptake mechanism into tumor cells and normal tissues based on the organic cation transporter. Our results could help advance reliability and applicability in cancer theranostics.

Report

(5 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (6 results)

All 2018 2016 2015 2014

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (4 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] The Thymidine Phosphorylase Imaging Agent 123I-IIMU2016

    • Author(s)
      Kobashi N. et al
    • Journal Title

      J.Nucl. Med.

      Volume: 57 Pages: 1276-1281

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] Relationship between biodistribution of a novel thymidine phosphorylase (TP) probe and TP expression levels in normal mice2015

    • Author(s)
      Zhao S., Li H.,Nishijima K.,,Zhao Y., Akizawa H,,Shimizu Y., Ohkura K., Tamaki N., KugeY.
    • Journal Title

      Anal.Nucl.Med

      Volume: 29 Issue: 7 Pages: 582-587

    • DOI

      10.1007/s12149-015-0981-7

    • Related Report
      2015 Research-status Report
    • Peer Reviewed
  • [Presentation] チミジンホスホリラーゼ標的放射性プローブ[125I]IIMUの取り込みに対する有機カチオントランスポーターの影響2018

    • Author(s)
      中山賢志、宿里充穂、東川桂、尾江悟、水野雄貴、大倉一枝、久下裕司、秋澤宏行
    • Organizer
      日本薬学会第138年会(金沢)
    • Related Report
      2017 Annual Research Report
  • [Presentation] First-in-Human Study of a Novel Thymidine Phosphorylase Tracer [123I]IIMU in Healthy Volunteers - Preliminary Report.2016

    • Author(s)
      Shiro Watanabe  et al.
    • Organizer
      Society of Nuclear Medicine and Molecular Imaging
    • Place of Presentation
      San Diego
    • Year and Date
      2016-06-11
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Preclinical and translational researchs novel PET and SPECT tracers: 18F-Difa and 123I-IIMU for hypoxia and thymidine phosphorylase imaging2015

    • Author(s)
      Zhao S., Nishijima K., Matsumoto H., Akizawa H., Ohkura K., Tamaki N., Kuge Y.
    • Organizer
      アジアオセアニア核医学・生物学会(AOCNMB 2015)
    • Place of Presentation
      韓国チェジュ
    • Year and Date
      2015-10-31
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] Preclinical evaluation of thymidine phosphorylase imaging probe, 123I-IIMU for the First-in-Human clinical trials.2014

    • Author(s)
      Nishijima K, Zhao S, Feng F, Shimizu Y, Akizawa H, Ohkura K, Kobashi N. Abe T, Matsumoto H, Tamaki N, Kuge Y
    • Organizer
      The 12th International Symposium for Future Drug Discovery and Medical Care, Perspectives of Molecular and Target Therapy
    • Place of Presentation
      Sapporo
    • Year and Date
      2014-09-04 – 2014-09-05
    • Related Report
      2014 Research-status Report

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Published: 2014-04-04   Modified: 2019-03-29  

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