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2021 Fiscal Year Final Research Report

Development of an targeted radionuclide therapy of triple-negative breast cancer for clinical application

Research Project

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Project/Area Number 19K08221
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 InstitutionGunma University

Principal Investigator

Katsumata Natsumi  群馬大学, 医学部附属病院, 助教 (50588811)

Co-Investigator(Kenkyū-buntansha) 花岡 宏史  関西医科大学, 医学部, 教授 (50361390)
Project Period (FY) 2019-04-01 – 2022-03-31
Keywords内用放射線療法 / 血液クリアランス / トリプルネガティブ乳がん / クリックケミストリー
Outline of Final Research Achievements

To reduce radiolabeled antibody retention in the blood, which is a cause of side effects in cancer therapy using radiolabeled antibodies, we conducted research on the development of a blood clearance enhancement method using galactose conjugated albumin (GSA). When GSA with a sensor that reacts with tag was administered 24 hours after a antibody with a tag was administration, the radioactivity in the blood was greatly reduced without reducing the accumulation in the tumor. Therefore, this method is considered to be useful of reducing only the side effects of radiolabeled antibodies without compromising their therapeutic efficacy.

Free Research Field

放射線科学

Academic Significance and Societal Importance of the Research Achievements

本研究成果は、RI標識抗体の治療効果を損なうことなく副作用を低減できる手法を開発したものであり、RI標識抗体によるがん治療の可能性を大きく拡大するものである。本手法は生体に適合するアルブミンを使用していることから、臨床応用に向けて支障はなく、本手法を臨床応用することで新たながん治療法が可能となり、我が国のがん医療に大きく貢献することが期待できる社会的意義の大きい研究成果であるといえる。

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Published: 2023-01-30  

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