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Optimization of pretargeted alpha therapy for multiple types of cancer

Research Project

Project/Area Number 20H03627
Research Category

Grant-in-Aid for Scientific Research (B)

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

Principal Investigator

Washiyama Kohshin  福島県立医科大学, 公私立大学の部局等, 准教授 (80313675)

Co-Investigator(Kenkyū-buntansha) 高橋 和弘  福島県立医科大学, 医学部, 教授 (20370257)
杉山 暁  東京大学, アイソトープ総合センター, 助教 (40562715)
山下 雄史  東京大学, 先端科学技術研究センター, 特任准教授 (50615622)
右近 直之  福島県立医科大学, 公私立大学の部局等, 講師 (70792985)
横山 明彦  金沢大学, 物質化学系, 教授 (80230655)
趙 松吉  福島県立医科大学, 公私立大学の部局等, 教授 (80374239)
巽 俊文  東京大学, 大学院薬学系研究科(薬学部), 特別研究員 (80868232)
粟生木 美穂  福島県立医科大学, 公私立大学の部局等, 助手 (10783227)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2022: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2021: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
Fiscal Year 2020: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
Keywordsプレターゲティング / アスタチン / アイソトープ治療 / α線 / ビオチン / アビジン / アスタチン-211 / ドジメトリー
Outline of Research at the Start

再発や転移を伴い体内に広がった進行がんに対する副作用の少ない治療薬開発は、がん研究における最大の目標である。本研究では、改変ビオチンと低免疫原性ストレプトアビジン変異体融合一本鎖抗体にアルファ線を放出するアイソトープを標識し、プレターゲティング法における薬物動態支配因子の抽出とその制御を行う。そしてその結果として、高い腫瘍対正常組織線量比を達成し、複数種のがんへ適応することを目指す。

Outline of Final Research Achievements

For the development of drugs with fewer side effects for advanced cancers that have spread in the body with recurrence or metastasis, the present study was designed to extract pharmacokinetic controlling factors in the pre-targeting method of modified biotin (Psyche-BR(-PEG2)) and mutated immunogenic streptavidin (Cupid) fusion single-chain antibody. Compounds incorporating polyethylene glycol (PEG) of different molecular weights into Psyche-BR showed enhanced blood clearance with increasing PEG molecular weight. Evaluation of the Cupid-Psyche-BR complex by molecular dynamics simulation and crystallography indicated that the unstable binding could be resolved by adjusting the length of the Psyche-BR linker.

Academic Significance and Societal Importance of the Research Achievements

我々は、がん治療に於いて最も苦慮する副作用を最小化しつつ腫瘍への放射線照射量を最大化するための放射性医薬品の体内動態の最適化を研究対象として実験を進めてきた。プレターゲティング法は放射性薬剤が血流を介して体内をめぐる際に、効率的にがん細胞に結合し、直接的に放射線を照射してがんを治療する手法であるが最適化はなされていない。本研究によって、プレターゲティング法で用いる放射性薬剤の構造が最適化の重要な因子であることが明らかになった。さらにX線構造解析やモデル計算により、新しい化合物の形が示された。これらの結果から、今後より安全で効果的な薬剤を開発することで、多くのがん患者を治療できることが示された。

Report

(3 results)
  • 2023 Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (27 results)

All 2023 2022 2021 2020

All Journal Article (6 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 5 results,  Open Access: 4 results) Presentation (20 results) (of which Int'l Joint Research: 8 results,  Invited: 3 results) Book (1 results)

  • [Journal Article] Development of a phoswich detector composed of ZnS(Ag) and YAP(Ce) for astatine-211 imaging2022

    • Author(s)
      Yamamoto Seiichi、Ukon Naoyuki、Washiyama Kohshin、Hasegawa Koki、Kamada Kei、Yoshino Masao、Yoshikawa Akira
    • Journal Title

      Radiation Measurements

      Volume: 153 Pages: 106734-106734

    • DOI

      10.1016/j.radmeas.2022.106734

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 68Ga- and 211At-Labeled RGD Peptides for Radiotheranostics with Multiradionuclides2021

    • Author(s)
      Ogawa K, Echigo H, Mishiro K, Hirata S, Washiyama K, Kitamura Y, Takahashi K, Shiba K, Kinuya S.
    • Journal Title

      Molecular Pharmaceutics

      Volume: 18(9) Issue: 9 Pages: 3553-3562

    • DOI

      10.1021/acs.molpharmaceut.1c00460

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Production and Supply of α-Particle-Emitting Radionuclides for Targeted α-Therapy2021

    • Author(s)
      Radchenko V, Morgenstern A, Jalilian AR, Ramogida CF, Cutler C, Duchemin C, Hoehr C, Haddad F, Bruchertseifer F, Gausemel H, Yang H, Osso JA, Washiyama K, Czerwinski K, Leufgen K, Pruszynski M, Valzdorf O, Causey P, Schaffer P, Perron R, Maxim S, Wilbur DS, Stora T, Li Y.
    • Journal Title

      Journal of Nuclear Medicine

      Volume: 62(11) Issue: 11 Pages: 1495-1503

    • DOI

      10.2967/jnumed.120.261016

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Adsorption temperature of volatile astatine species formed via dry distillation in a glass tube2021

    • Author(s)
      Nishinaka Ichiro、Washiyama Kohshin、Hashimoto Kazuyuki
    • Journal Title

      Journal of Radioanalytical and Nuclear Chemistry

      Volume: 329 Issue: 3 Pages: 1459-1465

    • DOI

      10.1007/s10967-021-07879-6

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Current Status of alpha emitters useful for targeted radionuclide therapy2020

    • Author(s)
      鷲山幸信
    • Journal Title

      Drug Delivery System

      Volume: 35 Issue: 2 Pages: 102-113

    • DOI

      10.2745/dds.35.102

    • NAID

      130007864108

    • ISSN
      0913-5006, 1881-2732
    • Year and Date
      2020-03-25
    • Related Report
      2020 Annual Research Report
    • Open Access
  • [Journal Article] Human dosimetry of free 211At and meta-[211At]astatobenzylguanidine (211At-MABG) estimated using preclinical biodistribution from normal mice2020

    • Author(s)
      Ukon Naoyuki、Zhao Songji、Washiyama Kohshin、Oriuchi Noboru、Tan Chengbo、Shimoyama Saki、Aoki Miho、Kubo Hitoshi、Takahashi Kazuhiro、Ito Hiroshi
    • Journal Title

      EJNMMI Physics

      Volume: 7 Issue: 1 Pages: 58-58

    • DOI

      10.1186/s40658-020-00326-7

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Pretargeted alpha radioimmunotherapy for the treatment of gastric cancer using low-immunogenic mutated streptavidin and 211At labeled modified bis-iminobiotin2023

    • Author(s)
      Kohshin Washiyama, Toshifumi Tatsumi, Akira Sugiyama, Songji Zhao, Miho Aoki, Kenzo Yamatsugu, Ken-ichi Nishijima, Naoyuki Ukon, Saki Shimoyama, Taiki Joho, Noboru Oriuchi, Motomu Kanai, Kazuhiro Takahashi, Tatsuhiko Kodama
    • Organizer
      12th International Symposium on Targeted Alpha Therapy
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Synthesis and evaluation of 211At-labeled bis-iminobiotin for pretargeted alpha radioimmunotherapy2022

    • Author(s)
      Kohshin Washiyama, Toshifumi Tatsumi, Akira Sugiyama, Songji Zhao, Miho Aoki, Kenzo Yamatsugu, Ken-ichi Nishijima, Naoyuki Ukon, Saki Shimoyama, Taiki Joho, Noboru Oriuchi, Motomu Kanai, Kazuhiro Takahashi, Tatsuhiko Kodama
    • Organizer
      2022 SNMMI Annual Meeting
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Synthesis of an 211At labelled bis-iminobiotin derivativewith enhanced plasma stability2022

    • Author(s)
      Kohshin Washiyama, Toshifumi Tatsumi, Akira Sugiyama, Songji Zhao, Miho Aoki, Kenzo Yamatsugu, Ken-ichi Nishijima, Naoyuki Ukon, Saki Shimoyama, Taiki Joho, Noboru Oriuchi, Motomu Kanai, Kazuhiro Takahashi, Tatsuhiko Kodama
    • Organizer
      2022 JSNM Annual Meeting
    • Related Report
      2021 Annual Research Report
  • [Presentation] 核医学とその基礎としての放射化学の重要性~α放射体との対話を通じて~2022

    • Author(s)
      鷲山幸信
    • Organizer
      日本放射化学会第66回討論会(2022)
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] R&D Status of Astatine-211 in Japan and at Fukushima Medical University2022

    • Author(s)
      Kohshin Washiyama
    • Organizer
      66th IAEA General Conference Side Event
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 新規イメージング技術を用いたα線放出核種の組織内局所線量評価の基礎検討2021

    • Author(s)
      右近 直之, 鷲山 幸信, 趙 松吉, 織内 昇, 西嶋 剣一, 城寳 大輝, 下山 彩希, 高橋 和弘, 伊藤 浩
    • Organizer
      第58回アイソトープ・放射線研究発表会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Targeted delivery of 211At with low immunogenic mutant streptavidin-bisiminobiotin pre-targeting system2021

    • Author(s)
      Toshifumi Tatsumi, Kenzo Yamatsugu, Akira Sugiyama, Songji Zhao, Miho Aoki, Ken-ichi Nishijima, Naoyuki Ukon, Saki Shimoyama, Chengbo Tan, Fengying Gao, Taiki Joho, Noboru Oriuchi, Kazuhiro Takahashi, Motomu Kanai, Tatsuhiko Kodama, Kohshin Washiyama
    • Organizer
      The 2021 International Chemical Congress of Pacific Basin Societies
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Development of a pre-targeting strategy of low-immunogenic mutated streptavidin with 211At labeled modified biotin for advanced cancer treatment2020

    • Author(s)
      Kohshin Washiyama, Akira Sugiyama, Songji Zhao, Toshifumi Tatsumi, Miho Aoki, Kenzo Yamatsugu, Ken-ichi Nishijima, Naoyuki Ukon, Saki Shimoyama, Chengbo Tan, Taiki Joho, Noboru Oriuchi, Motomu Kanai, Kazuhiro Takahashi, Tatsuhiko Kodama
    • Organizer
      SNMMI 2020 Annual Meeting - Virtual Edition
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] α放射体211At標識イミノビオチンの作成と安定性評価2020

    • Author(s)
      鷲山幸信、粟生木美穂、巽俊文、山次健三、杉山暁、西嶋剣一、城寶大輝、高峰英、趙松吉、金井求、児玉龍彦、高橋和弘
    • Organizer
      日本放射化学会第64回討論会(2020)
    • Related Report
      2020 Annual Research Report
  • [Presentation] 加速器製造アルファ放射体を用いたアイソトープ治療への取り組み2020

    • Author(s)
      鷲山幸信
    • Organizer
      日本原子力学会秋の年会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] α放射体211Atを用いたプレターゲティング法による進行がんの治療2020

    • Author(s)
      Kohshin Washiyama, Akira Sugiyama, Kenzo Yamatsugu, Songji Zhao, Toshifumi Tatsumi, Miho Aoki, Naoyuki Ukon, Saki Shimoyama, Ken-ichi Nishijima, Chengbo Tan, Taiki Joho, Fengying Gao, Noboru Oriuchi, Motomu Kanai, Kazuhiro Takahashi, Tatsuhiko Kodama
    • Organizer
      日本放射線影響学会第63回大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Search for the optimal bis-iminobiotin for the pretargeting strategy using a mutated low immunogenic streptavidin2020

    • Author(s)
      K. Washiyama, T. Tatsumi, S. Zhao, A. Sugiyama, M. Aoki, K. Yamatsugu, N. Ukon, K. Nishijima, S. Shimoyama, C. Tan, T. Joho, N. Oriuchi, M. Kanai, K. Takahashi, T. Kodama
    • Organizer
      33th Annual Congress of the European Association of Nuclear Medicine
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Biodistribution and dosimetry studies for the optimization of pre-targeted radionuclide therapy using 211At-labeled modified biotin2020

    • Author(s)
      Kohshin Washiyama, Akira Sugiyama, Songji Zhao, Toshifumi Tatsumi, Miho Aoki, Kenzo Yamatsugu, Ken-ichi Nishijima, Saki Shimoyama, Taiki Joho, Noboru Oriuchi, Motomu Kanai, Kazuhiro Takahashi, Tatsuhiko Kodama
    • Organizer
      33th Annual Congress of the European Association of Nuclear Medicine
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Evaluation of therapeutic effect of the targeted alpha therapy using Cupid-211At-labeled Psyche-B pretargeting system in a human gastric cancer cell xenograft2020

    • Author(s)
      Songji Zhao, Akira Sugiyama, Naoyuki Ukon, Saki Shimoyama, Toshifumi Tatsumi, Miho Aoki, Fengying Gao, Kenzo Yamatsugu, Ken-ichi Nishijima, Taiki Joho, Noboru Oriuchi, Kazuhiro Takahashi, Motomu Kanai, Tatsuhiko Kodama, Kohshin Washiyama
    • Organizer
      33th Annual Congress of the European Association of Nuclear Medicine
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 進行がん治療を指向した低免疫原性ストレプトアビジン変異体と 211At標識イミノビオチンを用いるプレターゲティングシステムの開発2020

    • Author(s)
      巽俊文, 山次健三, 清水洋平, 杉山暁, 趙松吉, 粟生木美穂, 西嶋剣一, 右近直之, 高橋和弘, 児玉龍彦, 鷲山幸信, 金井求
    • Organizer
      反応と合成の進歩2020特別企画シンポジウム|
    • Related Report
      2020 Annual Research Report
  • [Presentation] 低免疫原性を持つストレプトアビジンとRI標識イミノビオチンを用いたプ レターゲティング法の開発2020

    • Author(s)
      杉山暁、山次健三、巽俊文、鷲山幸信、金井求、児玉龍彦、清水洋平、溝端栄一、井上豪
    • Organizer
      第60回日本核医学会学術総会
    • Related Report
      2020 Annual Research Report
  • [Presentation] イミノビオチン誘導体の合成とアスタチン標識の検討2020

    • Author(s)
      粟生木美穂, 巽俊文, 西嶋剣一, 山次健三, 城寶大輝, 趙松吉, 杉山暁, 児玉龍彦, 高橋和弘, 金井求, 鷲山幸信
    • Organizer
      第60回日本核医学会学術総会
    • Related Report
      2020 Annual Research Report
  • [Presentation] プレターゲティングへの応用を目指した211At標識改変イミノビオチンの体内分布測定2020

    • Author(s)
      鷲山幸信, 巽俊文, 杉山暁, 粟生木美穂, 譚成博, 下山彩希, 山次健三, 金井求, 児玉龍彦, 趙松吉, 高橋和弘
    • Organizer
      第60回日本核医学会学術総会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 211At標識イミノビオチンを用いたプリターゲティング法の最適化 投与間隔による薬物動態評価2020

    • Author(s)
      右近直之, 鷲山幸信, 杉山暁, 巽俊文, 山次健三, 下山彩希, 織内昇, 金井求, 児玉龍彦, 高橋和弘, 趙松吉
    • Organizer
      第60回日本核医学会学術総会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 進行癌におけるCupidと211At標識Psyche-Bを用いたプレターゲティング法の治療効果評価2020

    • Author(s)
      趙松吉, 右近直之, 織内昇, 高峰英, 下山彩希, 高橋和弘, 巽俊文, 山次健三, 金井求, 杉山暁, 児玉龍彦
    • Organizer
      第60回日本核医学会学術総会
    • Related Report
      2020 Annual Research Report
  • [Book] 福島復興知学講義2021

    • Author(s)
      秋光 信佳、溝口 勝
    • Total Pages
      288
    • Publisher
      東京大学出版会
    • ISBN
      9784130520300
    • Related Report
      2020 Annual Research Report

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Published: 2020-04-28   Modified: 2025-01-30  

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