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

Development of Ga-68-tin colloid for visualizing reticuloendothelial system and sentinel lymph node using positron emission tomography

Research Project

Project/Area Number 18K07689
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 52040:Radiological sciences-related
Research InstitutionFukushima Medical University

Principal Investigator

Takahashi Kazuhiro  福島県立医科大学, 医学部, 教授 (20370257)

Co-Investigator(Kenkyū-buntansha) 松坂 陽至  慶應義塾大学, 医学部(信濃町), 助教 (00594483)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2019: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2018: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywords[Ga-68]Ga標識スズコロイド / [Ga-68]標識スズコロイド / Ga-68標識スズコロイド / PET / クッパー細胞 / 貪食能 / 68Ga標識スズコロイド / Ga-68 colloid
Outline of Final Research Achievements

In this study, we searched for appropriate conditions for producing Ga-68-labeled tin colloids in the first year and the next year, and confirmed that they can be easily labeled at room temperature. It was also clarified that the size of the colloid changes depending on the concentration of the reagent to be mixed. The biokinetics was evaluated by administering the prepared Ga-68-labeled tin colloid to small animals and imaging with a small animal PET system. It was found that when administered to Kupffer cell depletion model animals, it was specifically phagocytosed by hepatic Kupffer cells. In addition, it was administered to NASH (non-alcoholic steatohepatitis) model rats to detect changes in liver distribution. This research result was accepted and published in a journal of the international society of nuclear medicine.

Academic Significance and Societal Importance of the Research Achievements

本研究で世界で初めて開発したGa-68標識スズコロイドにより、今までシンチグラフィやSPECT(単光子放出断層撮像)で行われていた肝クッパー細胞機能を、より分解能と定量性の高いPET(陽電子放射断層撮影)で評価することが可能になった。本研究により、より精度を高く肝クッパー細胞機能を生体内で評価できるようになり、肝臓の多くの疾患の病態解明に貢献する可能性がある。

Report

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

    (3 results)

All 2020 2019

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

  • [Journal Article] Development of 68Ga-labeled tin colloids for evaluating phagocytic function of Kupffer cells using preclinical PET imaging2020

    • Author(s)
      Matsusaka Yohji、Nakahara Tadaki、Takahashi Kazuhiro、Iwabuchi Yu、Nakamura Shoki、Jinzaki Masahiro
    • Journal Title

      Annals of Nuclear Medicine

      Volume: 34 Issue: 11 Pages: 807-814

    • DOI

      10.1007/s12149-020-01505-3

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Presentation] Development and preclinical PET imaging of 68Ga-tin colloid for visualization and quantification of the phagocytic function of Kupffer cells2020

    • Author(s)
      Yohji Matsusaka, Tadaki Nakahara, Kazuhiro Takahashi, Yu Iwabuchi, Masahiro Jinzaki
    • Organizer
      Society of Nuclear Medicine and Molecular Imaging (SNMMI)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Development and preclinical PET imaging of 68Ga-tin colloid for visualization and quantification of the phagocytic function of Kupffer cells2019

    • Author(s)
      Yohji Matsusaka, Kazuhiro Takahashi, Tadaki Nakahara, Masahiro Jinzaki.
    • Organizer
      SNMMI2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research

URL: 

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

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi