• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Analysis of biological factors involved in tumor immunity and its application to personalized radiotherapy.

Research Project

Project/Area Number 20K16764
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 52040:Radiological sciences-related
Research InstitutionSapporo Medical University

Principal Investigator

Tsuchiya Takaaki  札幌医科大学, 医学部, 助教 (90631169)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2020: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords腫瘍免疫 / リキッドバイオプシー / 放射線治療 / 治療効果予測
Outline of Research at the Start

本研究では腫瘍免疫関連タンパクの発現と放射線治療成績の相関を解明し、臨床応用に結びつけることを目的とする。
具体的には、(A) 治療開始前の生検検体および術後摘出標本を用いた、腫瘍免疫関連タンパクの免疫組織染色による放射線治療効果予測、(B) 血中のPD-L1(Programmed death ligand-1)測定による腫瘍免疫応答の解析、(C)腫瘍免疫の制御に関わる血中マイクロRNAの同定を行い、癌細胞の腫瘍免疫関連タンパクを用いた放射線感受性予測法の臨床応用と個別化放射線治療の実用化を目指す。

Outline of Final Research Achievements

We investigated the expression of miRNAs in exosomes and tumor-infiltrating CD8-positive and FoxP3-positive T cells in blood before treatment in patients with uterine cervical cancer treated with definitive radiotherapy. The results and their prognostic relevance were also investigated. As a result, we identified nine miRNA signatures that were differentially expressed with or without recurrence. The expression of some miRNA signatures was inversely correlated with the number of tumor-infiltrating CD8-positive and FoxP3-positive T cells, suggesting a possible association between tumor immunosuppression and suppression of chemoradiotherapy efficacy.
These results indicate that the use of miRNA signatures may improve noninvasive monitoring and personalized treatment of cervical cancer.

Academic Significance and Societal Importance of the Research Achievements

近年、腫瘍免疫機構が解明されつつあり、臨床においても免疫チェックポイント阻害薬が承認され効果が認められている。しかし、放射線治療と腫瘍免疫機構の関連については未解明の部分が多い。この研究では子宮頸癌における腫瘍免疫関連タンパクの発現や腫瘍免疫の制御に関わる血中マイクロRNAと放射線治療の成績について比較検討を行っている。その結果、いくつかのmiRNAシグネチャの発現は腫瘍免疫との関連を示すとともに化学放射線治療の効果にも影響を及ぼしている可能性が示された。
これにより腫瘍免疫やmiRNAに基づいた個別化治療を行うことで、化学放射線治療の効果を高められる可能性がある。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (12 results)

All 2023 2022 2021 2020

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

  • [Journal Article] Predictive value of an exosomal microRNA-based signature for tumor immunity in cervical cancer patients treated with chemoradiotherapy.2023

    • Author(s)
      Someya M, Hasegawa T, Tsuchiya T, Kitagawa M, Fukushima Y, Gocho T, Mafune S, Ikeuchi Y, Kozuka Y, Idogawa M, Hirohashi Y, Torigoe T, Iwasaki M, Matsuura M, Saito T, Sakata KI.
    • Journal Title

      Med Mol Morphol.

      Volume: 56(1) Issue: 1 Pages: 38-45

    • DOI

      10.1007/s00795-022-00338-5

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Combined chemoradiotherapy and programmed cell death-ligand 1 blockade leads to changes in the circulating T-cell receptor repertoire of patients with non-small-cell lung cancer.2022

    • Author(s)
      Someya M, Tokita S, Kanaseki T, Kitagawa M, Hasegawa T, Tsuchiya T, Fukushima Y, Gocho T, Kozuka Y, Mafune S, Ikeuchi Y, Takahashi M, Moniwa K, Matsuo K, Hasegawa T, Torigoe T, Sakata KI.
    • Journal Title

      Cancer Sci.

      Volume: 113(12) Issue: 12 Pages: 4394-4400

    • DOI

      10.1111/cas.15566

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Radiotherapy for HPV-related cancers: prediction of therapeutic effects based on the mechanism of tumor immunity and the application of immunoradiotherapy2022

    • Author(s)
      Someya Masanori、Fukushima Yuki、Hasegawa Tomokazu、Tsuchiya Takaaki、Kitagawa Mio、Gocho Toshio、Mafune Shoh、Ikeuchi Yutaro、Kozuka Yoh、Hirohashi Yoshihiko、Torigoe Toshihiko、Iwasaki Masahiro、Matsuura Motoki、Saito Tsuyoshi、Sakata Koh-ichi
    • Journal Title

      Japanese Journal of Radiology

      Volume: - Issue: 5 Pages: 458-465

    • DOI

      10.1007/s11604-021-01231-4

    • NAID

      210000178430

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Prediction of treatment response from the microenvironment of tumor immunity in cervical cancer patients treated with chemoradiotherapy2021

    • Author(s)
      Someya Masanori、Tsuchiya Takaaki、Fukushima Yuki、Hasegawa Tomokazu、Hori Masakazu、Kitagawa Mio、Gocho Toshio、Mafune Shoh、Ikeuchi Yutaro、Hirohashi Yoshihiko、Torigoe Toshihiko、Iwasaki Masahiro、Matsuura Motoki、Saito Tsuyoshi、Matsumoto Yoshihisa、Sakata Koh-ichi
    • Journal Title

      Medical Molecular Morphology

      Volume: 54 Issue: 3 Pages: 245-252

    • DOI

      10.1007/s00795-021-00290-w

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] 血中エクソソーム由来miRNAを用いた子宮頸癌の治療効果予測2022

    • Author(s)
      染谷 正則、土屋 高旭、福島 悠希、長谷川 智一、井戸川 雅史、松浦 基樹、岩崎 雅宏、廣橋 良彦、鳥越 俊彦、齋藤 豪、坂田 耕一
    • Organizer
      第60回日本癌治療学会学術集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 化学放射線療法+免疫療法を行ったIII期切除不能非小細胞肺癌における末梢血リンパ細胞のTCRレパトア解析2022

    • Author(s)
      染谷 正則、鳥越 俊彦
    • Organizer
      第35回日本バイオセラピィ学会学術集会総会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 末梢血リンパ球TCRレパトア解析を用いたIII期NSCLCのCRT+ICI治療効果予測2022

    • Author(s)
      染谷 正則、北川 未央、長谷川 智一、土屋 高旭、福島 悠希、後町 俊夫、眞船 翔、池内 佑太郎、小塚 陽、坂田 耕一
    • Organizer
      日本放射線腫瘍学会第 35回学術大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 血中エクソソームmiRNAを用いた子宮頸癌の治療効果予測2021

    • Author(s)
      染谷正則、土屋高旭、長谷川智一、福島悠希、池内佑太郎、眞船翔、北川未央、後町俊夫、坂田耕一
    • Organizer
      日本放射線腫瘍学会第34回学術大会
    • Related Report
      2021 Research-status Report
  • [Presentation] Relationship between the type of CD8 invasion and prognosis in cervical cancer patients treated with definitive radiotherapy.2021

    • Author(s)
      染谷正則、福島悠希、土屋高旭、長谷川智一、堀正和、後町俊夫、小塚陽、池内佑太郎、眞船翔、坂田耕一
    • Organizer
      第80回日本医学放射線学会総会
    • Related Report
      2021 Research-status Report
  • [Presentation] 子宮頸癌根治照射症例におけるCD8の浸潤形式と予後との関連2021

    • Author(s)
      染谷正則、土屋高旭、福島悠希、長谷川智一、北川未央、後町俊夫、岩崎雅宏、松浦基樹、齋藤豪、坂田耕一
    • Organizer
      第59回 日本癌治療学会学術集会
    • Related Report
      2021 Research-status Report
  • [Presentation] HPV関連癌における腫瘍免疫と放射線治療との関係2020

    • Author(s)
      染谷正則,土屋高旭
    • Organizer
      日本放射線腫瘍学会 第33回学術大会
    • Related Report
      2020 Research-status Report
  • [Presentation] Relationship between tumor immunity and radiotherapy effects in HPV associated cancer.2020

    • Author(s)
      染谷正則,土屋高旭
    • Organizer
      第56回日本医学放射線学会秋季臨床大会
    • Related Report
      2020 Research-status Report

URL: 

Published: 2020-04-28   Modified: 2024-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi