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中間悪性度骨腫瘍に対する免疫チェックポイント分子発現を基盤とした新規治療戦略

Research Project

Project/Area Number 23K14659
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 50020:Tumor diagnostics and therapeutics-related
Research InstitutionNara Medical University

Principal Investigator

塚本 真治  奈良県立医科大学, 医学部, 助教 (70646166)

Project Period (FY) 2023-04-01 – 2026-03-31
Project Status Granted (Fiscal Year 2023)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2025: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2024: ¥130,000 (Direct Cost: ¥100,000、Indirect Cost: ¥30,000)
Fiscal Year 2023: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Keywords骨巨細胞腫 / 骨腫瘍
Outline of Research at the Start

中間悪性度骨腫瘍は局所浸潤性が高く、術後再発を繰り返し、広範に関節破壊を来し、著しい機能障害を呈する。また、脊椎や骨盤など体幹発生例は大出血の危険性が高く、手術不可能なケースもしばしば認められる。近年免疫チェックポイント阻害薬が癌治療において目覚ましい成功を収めてきた。本申請課題は中間悪性度骨腫瘍などに対し、免疫チェックポイント阻害薬のターゲットであるprogrammed death-ligand 1 (PD-L1)の発現を調査し、臨床経緯との相関を検討、難治性中間悪性度骨腫瘍に対するPD-L1発現を基盤とする新しい治療戦略の開発を目指す。

Outline of Annual Research Achievements

悪性転化した骨巨細胞腫2例においてPDL1の発現が悪性転化前と比較して単核細胞の細胞膜に陽性になる頻度が上昇していた(40-70% vs 5%以下)。

Current Status of Research Progress
Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

臨床データの収集は完了し、PD1の免疫染色を施行中である。

Strategy for Future Research Activity

PD1の免疫染色を施行予定である。

Report

(1 results)
  • 2023 Research-status Report
  • Research Products

    (4 results)

All 2023 Other

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

  • [Int'l Joint Research] Rizzoli Institute(イタリア)

    • Related Report
      2023 Research-status Report
  • [Journal Article] Giant cell tumor of bone with secondary aneurysmal bone cyst does not have a higher risk of local recurrence2023

    • Author(s)
      Tsukamoto Shinji、Aiba Hisaki、Righi Alberto、Nitta Yuji、Traversari Matteo、Mavrogenis Andreas F.、Honoki Kanya、Tanaka Yasuhito、Donati Davide Maria、Errani Costantino
    • Journal Title

      Journal of Surgical Oncology

      Volume: 128 Issue: 2 Pages: 350-358

    • DOI

      10.1002/jso.27283

    • Related Report
      2023 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Use of denosumab in musculoskeletal oncology: current concepts, Symposium: Innovative Strategies in Musculoskeletal Oncology.2023

    • Author(s)
      塚本真治
    • Organizer
      43rd SICOT World Orthopaedic Congress
    • Related Report
      2023 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Outcome of re-operation for local recurrence following pre-operative denosumab administration and curettage for giant cell tumour of bone with difficult joint preservation.2023

    • Author(s)
      塚本真治
    • Organizer
      35th Annual Meeting European Musculo-Skeletal Oncology Society
    • Related Report
      2023 Research-status Report
    • Int'l Joint Research

URL: 

Published: 2023-04-13   Modified: 2024-12-25  

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