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2018 Fiscal Year Final Research Report

Development of fusion peptides of beta-hairpin peptides and survivin binding molecules as cancer-specific internal radiotherapeutic agents(Fostering Joint International Research)

Research Project

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Project/Area Number 15KK0348
Research Category

Fund for the Promotion of Joint International Research (Fostering Joint International Research)

Allocation TypeMulti-year Fund
Research Field Radiation science
Research InstitutionNagasaki University

Principal Investigator

FUCHIGAMI Takeshi  長崎大学, 医歯薬学総合研究科(薬学系), 准教授 (30432206)

Research Collaborator Gambhir Sanjiv Sam  Stanford University School of Mdicine, Radiology, 教授
Project Period (FY) 2016 – 2018
Keywords薬学 / 内用放射線療法 / 癌 / survivin / セラノスティクス
Outline of Final Research Achievements

In this study, we aimed to develop theranostic agents targeting survivin for cancer selective treatment and diagnosis. Therefore, in collaboration with Professor Gambhir of Stanford University, we synthesized and evaluated survivin targeting agents. In addition, we tried to develop nano DDS agents using survivin targeting peptides as carriers. During the research period, we succeeded in developing peptides that bind to survivin protein. We further found that the peptides have antitumor activities via apoptosis. Finally, we tried to develop gold nanoparticles modified with the peptides.

Free Research Field

医歯薬学

Academic Significance and Societal Importance of the Research Achievements

Survivinは多くのがん組織に高発現している一方、ほとんどの分化後の正常細胞ではその発現は極めて低レベルである。本研究では、Stanford大学との共同研究にて、がん選択的な治療や診断を目的とした新たなsurvivin標的ペプチド分子の開発に成功し、ナノDDS薬剤への展開の可能性も切り開いた。また、本研究期間内で様々な国際的な研究ネットワークの構築を達成することができたため、今後は、さらなる国際共同研究にて、survivinをはじめとした様々な標的に対するがんの治療や診断に役立つセラノスティク薬剤の創製に繋がることが期待される。

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Published: 2020-03-30  

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