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Exploratory research for immunogenic cell death induced by anti-cancer drugs in lung cancer

Research Project

Project/Area Number 19K07733
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 50020:Tumor diagnostics and therapeutics-related
Research InstitutionFukuoka University (2020-2021)
Kyushu University (2019)

Principal Investigator

INOUE HIORYUKI  福岡大学, 医学部, 准教授 (80529967)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
KeywordsICD / DAMP / NSCLC / Calreticulin / ICD : 免疫原性細胞死 / EGFR-TKI / CRT / 肺癌 / 免疫原性細胞死 / DAMPs / 免疫原性細胞死(ICD) / 薬物療法 / 免疫チェックポイント阻害剤
Outline of Research at the Start

近年、多数の複合癌免疫療法臨床試験(免疫チェックポイント阻害剤+化学療法、放射線治療等)が実施されており、進行非小細胞肺癌患者において一定の相乗的抗腫瘍効果が得られている。その要因のひとつとして、一部の化学療法が免疫原性細胞死(ICD)と呼ばれる癌細胞死を惹起することで新規腫瘍抗原に対する二次的(続発性)T細胞性免疫応答を増強するメカニズムが注目されている。本研究では、複数の培養肺癌細胞株に複数の化学療法及び分子標的薬で処理後、傷害を受けた癌細胞におけるICDの指標である各種DAMPs分子を定量解析することでICD誘導能を比較解析し、最も強くICDを誘導する薬剤を同定することを目的とする。

Outline of Final Research Achievements

The synergistic effects of immune checkpoint inhibitors and cytotoxic anticancer drugs in the treatment for solid cancers have been implicated in immunogenic cell death (ICD), a process characterized by the release of DAMPs (damage-associated molecular patterns) during cancer cell death. In this study, we found that antimetabolites and microtubule inhibitors induced phosphorylation of Ecto-CRT and eIF2α more strongly than platinum-based anticancer drugs in six human NSCLC cell lines, and a strong positive correlation between Ecto-CRT expression level and apoptosis induction ability. The third generation EGFR-TKI osimertinib also increased Ecto-CRT expression in NSCLC cell lines. In addition, we demonstrated that soluble CRT levels in serum were increased in patients with advanced stage lung cancer treated with pemetrexed/docetaxel monotherapy and osimertinib.

Academic Significance and Societal Importance of the Research Achievements

本研究結果より、代謝拮抗薬、微小管阻害薬及び第3世代EGFR-TKIオシメルチニブは、複数のNSCLC細胞株におけるEcto-CRT発現量及びNSCLC患者血液中の可溶性CRTを効果的に誘導し、これらの薬剤は長期抗腫瘍効果を期待できるICIを含む複合免疫療法において、ICDを誘導することで抗腫瘍免疫効果の増強に寄与している可能性が示唆された。また、今後CRTのみでなくその他のDAMP分子を含む統合解析により、これらDAMP分子が治療効果予測バイオマーカーとなりうる可能性も示唆された。現在我々は、血中DAMP分子値とICI治療効果の相関解析を進めている。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (3 results)

All 2021 2020

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

  • [Journal Article] Cytotoxic chemotherapeutic agents and the EGFR-TKI osimertinib induce calreticulin exposure in non-small cell lung cancer2021

    • Author(s)
      Rie Furukawa, Hiroyuki Inoue, Yasuto Yoneshima, Hirono Tsutsumi, Eiji Iwama, Yuki Ikematsu, Nobuhisa Ando, Yoshimasa Shiraishi, Keiichi Ota, Kentaro Tanaka, Yoichi Nakanishi and Isamu Okamoto
    • Journal Title

      Lung Cancer

      Volume: 155 Pages: 144-150

    • DOI

      10.1016/j.lungcan.2021.03.018

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Cytotoxic chemotherapeutic agents and the EGFR-TKI osimertinib induce calreticulin exposure in non small cell lung cancer2021

    • Author(s)
      古川 里恵、井上 博之、池松 祐樹、安藤 伸尚、田中 謙太郎、岡本 勇
    • Organizer
      第80回日本癌学会学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Pemetrexed induces calreticulin expression most robustly in parallel with apoptosis among chemotherapeutic agents used in non-small cell lung cancer (NSCLC) treatment2020

    • Author(s)
      Rie Furukawa, Hiroyuki Inoue, Hirono Tsutsumi, Nobuhisa Ando, Yuki Ikematsu, Eiji Iwama, Yasuto Yoneshima, Kentaro Tanaka, Yoichi Nakanishi, Isamu Okamoto
    • Organizer
      The 111th Annual Meeting of the American Association of Cancer Research (AACR) (Virtual Annual Meeting II)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research

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Published: 2019-04-18   Modified: 2023-01-30  

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