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Development of a novel boron agent for the treatment of bronchiolitis obliterans after allogeneic hematopoietic stem cell transplantation

Research Project

Project/Area Number 21K07730
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 InstitutionOkayama University

Principal Investigator

NISHIMORI HISAKAZU  岡山大学, 医学部, 客員研究員 (70756064)

Co-Investigator(Kenkyū-buntansha) 藤村 篤史  岡山大学, 医歯薬学域, 研究准教授 (10771082)
前田 嘉信  岡山大学, 医歯薬学域, 教授 (60403474)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2023: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Keywordsホウ素中性子捕捉療法 / 同種造血幹細胞移植 / 閉塞性細気管支炎
Outline of Research at the Start

同種造血幹細胞移植後の閉塞性細気管支炎は、予後が極めて不良な合併症であるが有効な治療法はいまだ確立していない。。本研究では、マウス疾患モデルを用いて、新規ホウ素製剤が病態に関与する細胞に効率的に取り込まれることを明らかにする。本研究結果は、正常な細胞と病的な細胞が混在する生体内で、活性化リンパ球およびマクロファージを選択的に除去する方法として本ドラッグデリバリーシステムの有効性が示され、閉塞性細気管支炎に対するホウ素中性子捕捉療法の開発に繋がると期待される。

Outline of Final Research Achievements

We investigated the usefulness of boron neutron capture therapy (BNCT) as a new treatment for bronchiolitis obliterans, a pulmonary complication after allogeneic hematopoietic stem cell transplantation. We conducted research on a novel boron formulation OKD-001 and published a paper demonstrating that its efficacy differs greatly when its subcellular localization in BNCT is taken into account. We also focused on gadolinium neutron capture therapy (GNCT), and conducted research to estimate its molecular characteristics compared to BCNT, which was submitted for publication.

Academic Significance and Societal Importance of the Research Achievements

同種造血幹細胞移植後の肺合併症である閉塞性細気管支炎に対する治療選択肢が少ない中、ホウ素中性子捕捉療法やガドリニウム中性子補足療法が全く新しい作用機序による治療法として確立すれば、より多くの同種移植患者さんを救うことができるため、社会的意義は大きいと考えます。また、学術的にも新治療法として臨床試験などの更なる研究が行われ、新しいエビデンスの創出が期待されます。

Report

(3 results)
  • 2023 Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (1 results)

All 2023

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results)

  • [Journal Article] Particle and Heavy Ion Transport Code System-Based Microdosimetry for the Development of Boron Agents for Boron Neutron Capture Therapy2023

    • Author(s)
      Takafumi Shigehira, Tadashi Hanafusa, Kazuyo Igawa, Tomonari Kasai, Shuichi Furuya, Hisakazu Nishimori, Yoshinobu Maeda, Hiroyuki Michiue, Atsushi Fujimura
    • Journal Title

      Advanced Theory and Simulations

      Volume: - Issue: 7 Pages: 2332-2342

    • DOI

      10.1002/adts.202300163

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access

URL: 

Published: 2021-04-28   Modified: 2025-01-30  

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