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The mechanism of synergistic effects of combination therapy with PDT and immune checkpoint inhibitors

Research Project

Project/Area Number 20K08361
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 53010:Gastroenterology-related
Research InstitutionNagoya City University

Principal Investigator

Tanaka Mamoru  名古屋市立大学, 医薬学総合研究院(医学), 助教 (80617861)

Co-Investigator(Kenkyū-buntansha) 片岡 洋望  名古屋市立大学, 医薬学総合研究院(医学), 教授 (40381785)
Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2021: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
KeywordsPDT / ICD / DAMPs / PD-1 / PD-L1 / CTLA-4 / Talaporfin sodium
Outline of Research at the Start

光線力学的療法(Photodynamic Therapy, PDT) は、光感受性物質が選択的に集積した腫瘍組織にレーザー光を照射し腫瘍細胞を選択的に破壊する低侵襲な治療法である。また免疫チェックポイント阻害剤は、持続的な腫瘍縮小効果を示すが、その奏効率は限定的である。PDTの免疫応答は抗がん剤や放射線治療よりも強いことが予想される。
本研究ではPDTと免疫チェックポイント阻害剤の併用療法の相乗効果の基礎的なメカニズムをDAMPsの放出や腫瘍内環境の変化を中心に解明し、今後の課題である免疫チェックポイント阻害剤に対する抵抗性・耐性を克服するための治療戦略の確立を目指す。

Outline of Final Research Achievements

Photodynamic therapy (PDT) is a minimally invasive therapy that selectively destroys tumor cells by irradiating laser light onto tumor tissue where light-sensitive substances have selectively accumulated. Immune checkpoint inhibitors show sustained tumor shrinkage, but the response rate is limited.
We found that PDT induces immunogenic cell death (ICD) and activates anti-tumor immunity via the release of Damage-associated molecular patterns (DAMPs). radiation therapy (RT), and synergistic effects of combination therapy with immune checkpoint inhibitors are highly expected.
In this study, we aim to elucidate the basic mechanism of the synergistic effect of combination therapy with PDT and immune checkpoint inhibitors, focusing on the release of DAMPs and changes in the tumor environment, and to establish a therapeutic strategy to overcome resistance and tolerance to immune checkpoint inhibitors, which is a future challenge.

Academic Significance and Societal Importance of the Research Achievements

PDTとICIそれぞれは現在すでに臨床応用をされており、さらに現在併用の臨床試験を施行しており、これにより効果が確認され今後標準治療となることが期待されている。今回の検討結果はその動機付けの一つになったかと考えている。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (21 results)

All 2023 2022 2021 2020

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 2 results) Presentation (17 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] Anti-tumor immunity enhancement by photodynamic therapy with talaporfin sodium and anti-programmed death 1 antibody2023

    • Author(s)
      Sasaki M, Tanaka M, Kojima Y, Nishie H, Shimura T, Kubota E, Kataoka H.
    • Journal Title

      Mol Ther Oncolytics

      Volume: 28 Pages: 118-131

    • DOI

      10.1016/j.omto.2022.12.009

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Combination of talaporfin photodynamic therapy and Poly (ADP-Ribose) polymerase (PARP) inhibitor in gastric cancer2021

    • Author(s)
      Tanaka Mamoru、Sasaki Makiko、Suzuki Taketo、Nishie Hirotada、Kataoka Hiromi
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 539 Pages: 1-7

    • DOI

      10.1016/j.bbrc.2020.12.073

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Potential of Photodynamic Therapy Based on Sugar-Conjugated Photosensitizers2021

    • Author(s)
      Kataoka Hiromi、Nishie Hirotada、Tanaka Mamoru、Sasaki Makiko、Nomoto Akihiro、Osaki Tomohiro、Okamoto Yoshiharu、Yano Shigenobu
    • Journal Title

      Journal of Clinical Medicine

      Volume: 10 Issue: 4 Pages: 841-841

    • DOI

      10.3390/jcm10040841

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Vascular Shutdown by Photodynamic Therapy Using Talaporfin Sodium2020

    • Author(s)
      Suzuki Taketo、Tanaka Mamoru、Sasaki Makiko、Ichikawa Hiroshi、Nishie Hirotada、Kataoka Hiromi
    • Journal Title

      Cancers

      Volume: 12 Issue: 9 Pages: 2369-2369

    • DOI

      10.3390/cancers12092369

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] THE ANTITUMOR EFFECT OF TALAPORFIN PHOTO DYNAMIC THERAPY (PDT) COMBINED WITH A STING AGONIST2023

    • Author(s)
      Mamoru Tanaka, Makiko Sasaki, Hiromi Kataoka
    • Organizer
      DDW 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ANTI-TUMOR IMMUNITY ENHANCEMENT BY PHOTODYNAMIC THERAPY WITH TALAPORFIN SODIUM AND ANTI-PROGRAMMED DEATH 1 ANTIBODY2023

    • Author(s)
      Makiko Sasaki, Mamoru Tanaka, Hiromi Kataoka
    • Organizer
      DDW 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] タラポルフィンPDTとSTINGアゴニストの併用による抗腫瘍効果の検討2023

    • Author(s)
      佐々木 槙子,小島 悠揮,田中 守,片岡 洋望
    • Organizer
      第82回日本癌学会学術総会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 高齢者・フレイル食道癌患者に対する光線力学療法の有用性2023

    • Author(s)
      ○田中 守、佐々木 槙子、小島 悠揮、西江 裕忠、尾関 啓司、志村 貴也、久保田 英嗣、片岡 洋望
    • Organizer
      第77回日本食道学会学術集会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 癌免疫活性化を目指した免疫チェックポイント阻害薬併用光線力学療法の検討2023

    • Author(s)
      佐々木 槙子,小島 悠揮,田中 守,片岡 洋望
    • Organizer
      第33回日本光線力学学会学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 光線力学療法による癌免疫誘導と免疫チェックポイント阻害薬併用による相乗効果2023

    • Author(s)
      佐々木槙子 田中守 小島悠揮 西江裕忠 片野敬仁 尾関啓司 志村貴也 久保田英嗣 片岡洋望
    • Organizer
      第19回日本消化管学会総会学術集会
    • Related Report
      2022 Research-status Report
  • [Presentation] Efficacy of photodynamic therapy with talaporfin sodium as a salvage treatment for local failure of esophageal cancer.2022

    • Author(s)
      Mamoru Tanaka
    • Organizer
      3rd World Congress of GI Endoscopy, ENDO 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Potentiality and future prospects of photodynamic therapy as cancer immunity therapy2022

    • Author(s)
      Makiko Sasaki, Mamoru Tanaka, Yuki Kojima, Hirotada Nishie, Takaya Shimura, Eiji Kubota, Hiromi Kataoka
    • Organizer
      第80回日本癌学会学術総会
    • Related Report
      2022 Research-status Report
  • [Presentation] タラポルフィンナトリウムを用いた光線力学療法による癌免疫誘導の解析と免疫チェックポイント阻害薬併用による相乗効果の検討2022

    • Author(s)
      佐々木槙子、田中守、小島悠揮、西江裕忠、片岡洋望
    • Organizer
      第32回日本光線力学学会学術講演会
    • Related Report
      2022 Research-status Report
  • [Presentation] Talaporfin sodiumを用いた光線力学的療法と抗PD-L1抗体よる治療相乗効果の検討2021

    • Author(s)
      佐々木槙子、田中 守、西江裕忠、片岡洋望
    • Organizer
      第107回日本消化器病学会総会
    • Related Report
      2021 Research-status Report
  • [Presentation] タラポルフィンを用いた光線力学的療法の成績~vascular shut downの基礎的検討も含めて~2021

    • Author(s)
      田中 守, 西江 裕忠, 片岡 洋望
    • Organizer
      第107回日本消化器病学会総会
    • Related Report
      2021 Research-status Report
  • [Presentation] 光線力学的療法による免疫原性細胞死誘導および癌免疫療法との相乗効果の検討2021

    • Author(s)
      佐々木 槙子, 田中 守, 片岡 洋望
    • Organizer
      第101回 日本消化器内視鏡学会総会
    • Related Report
      2021 Research-status Report
  • [Presentation] 食道癌遺残再発例に対する内視鏡治療 ~当院での光線力学的療法の治療成績~2021

    • Author(s)
      西江裕忠 ,小島悠揮, 佐々木慎子,田中守 ,片岡洋望
    • Organizer
      第75回日本食道学会学術集会
    • Related Report
      2021 Research-status Report
  • [Presentation] 当院における食道癌化学放射線療法後の局所遺残再発例に対するPDTの有害事象について2021

    • Author(s)
      田中 守
    • Organizer
      LASER WEEK IN TOKYO Ⅱ
    • Related Report
      2021 Research-status Report
  • [Presentation] Talaporfin sodiumを用いた光線力学的療法と抗PD-L1抗体よる治療相乗効果の検討2021

    • Author(s)
      佐々木槙子、田中 守、西江裕忠、片岡洋望
    • Organizer
      第41回日本レーザー医学会総会
    • Related Report
      2020 Research-status Report
  • [Presentation] 当院における食道癌化学放射線療法後の局所遺残再発例に対するタラポルフィンナトリウムを用いた光線力学的療法の成績2021

    • Author(s)
      佐々木槙子、田中 守、片岡洋望
    • Organizer
      第61回日本消化器内視鏡学会東海支部例会
    • Related Report
      2020 Research-status Report
  • [Presentation] Photodynamic diagnosis for detection of gastrointestinal stroma tumors (GIST) using 5-aminolaevulinic acid2021

    • Author(s)
      Makiko Sasaki, Mamoru Tanaka, Taketo Suzuki, Hirotada Nishie, Hiromi Kataoka
    • Organizer
      第79回日本癌学会学術総会
    • Related Report
      2020 Research-status Report

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

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