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Establishment and pathological analysis of novel immunotherapy by control of tryptophan-metabolizing enzymes in metastatic tumors

Research Project

Project/Area Number 17K15785
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Laboratory medicine
Research InstitutionFujita Health University

Principal Investigator

Hoshi Masato  藤田医科大学, 保健学研究科, 講師 (40633996)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywordsトリプトファン代謝 / KMO / IDO / KAT / キヌレニン / キサンツレン酸 / がん微小環境 / B16F10細胞 / B16F10細胞 / IDO1 / IDO2 / 3-hydroxykynurenine / Ro61-8048 / IDO1 / IDO2 / B16F10 / KMO / トリプトファン代謝産物
Outline of Final Research Achievements

A mouse lung metastasis model was generated and the roles of tryptophan metabolism were analyzed. Kynurenine 3-monooxygenase gene deficient (KMOKO) mice, a rate-limiting enzyme for kynurenine metabolism, significantly inhibited tumor growth compared to wild-type mice. Similarly, tumor growth was inhibited in KMO inhibitor-treated mice. These results were also confirmed in a various tumor model.Interestingly, the tumor suppressive effect in KMOKO was abolished by administration of the 3-hydroxykynurenine and xanthurenic acid. Thus, we showed that a type of tryptophan metabolite was deeply involved in tumor growth.

Academic Significance and Societal Importance of the Research Achievements

近年、抗PD-1抗体などの免疫チェックポイント阻害剤の投与は、従来の治療と比較して飛躍的に治療効果を向上させた。一方で、未だ7割程度の患者では十分な効果が得られていなことや高額な医療費が問題点として上げられる。本研究では、上記問題点を解決するために、トリプトファン代謝に着目し、研究したところ、代謝酵素の一つであるKMOを阻害することで腫瘍細胞の増殖が、抑制できることを明らかにした。これらの成果は、現在の治療法で効果のない患者の新規治療法を考える上で、重要な知見であると考えられる。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (10 results)

All 2020 2019 2018 2017

All Journal Article (6 results) (of which Peer Reviewed: 6 results,  Open Access: 6 results) Presentation (2 results) (of which Int'l Joint Research: 2 results) Patent(Industrial Property Rights) (2 results)

  • [Journal Article] Kynurenine plays an immunosuppressive role in 2,4,6-trinitrobenzene sulfate-induced colitis in mice.2020

    • Author(s)
      Tashita C, Hoshi M, Hirata A, Nakamoto K, Ando T, Hattori T, Yamamoto Y, Tezuka H, Tomita H, Hara A, Saito K.
    • Journal Title

      World J Gastroenterol.

      Volume: 26 Issue: 9 Pages: 918-932

    • DOI

      10.3748/wjg.v26.i9.918

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Kynurenine produced by indoleamine 2,3-dioxygenase 2 exacerbates acute liver injury by carbon tetrachloride in mice.2020

    • Author(s)
      Hoshi M, Osawa Y, Nakamoto K, Morita N, Yamamoto Y, Ando T, Tashita C, Nabeshima T, Saito K.
    • Journal Title

      Toxicology

      Volume: 438 Pages: 152458-152458

    • DOI

      10.1016/j.tox.2020.152458

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Indoleamine 2,3‐dioxygenase 2 depletion suppresses tumor growth in a mouse model of Lewis lung carcinoma2019

    • Author(s)
      Yamasuge Wakana、Yamamoto Yasuko、Fujigaki Hidetsugu、Hoshi Masato、Nakamoto Kentaro、Kunisawa Kazuo、Mouri Akihiro、Nabeshima Toshitaka、Saito Kuniaki
    • Journal Title

      Cancer Science

      Volume: 110 Issue: 10 Pages: 3061-3067

    • DOI

      10.1111/cas.14179

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Time-course analysis of cardiac and serum galectin-3 in viral myocarditis after an encephalomyocarditis virus inoculation2019

    • Author(s)
      Noguchi Kei、Tomita Hiroyuki、Kanayama Tomohiro、Niwa Ayumi、Hatano Yuichiro、Hoshi Masato、Sugie Shigeyuki、Okada Hideshi、Niwa Masayuki、Hara Akira
    • Journal Title

      PLOS ONE

      Volume: 14 Issue: 1 Pages: e0210971-e0210971

    • DOI

      10.1371/journal.pone.0210971

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Lipopolysaccharide shock reveals the immune function of indoleamine 2,3-dioxygenase 2 through the regulation of IL-6/stat3 signalling2018

    • Author(s)
      Yamamoto Yasuko、Yamasuge Wakana、Imai Shinjiro、Kunisawa Kazuo、Hoshi Masato、Fujigaki Hidetsugu、Mouri Akihiro、Nabeshima Toshitaka、Saito Kuniaki
    • Journal Title

      Scientific Reports

      Volume: 8 Issue: 1 Pages: 15917-15917

    • DOI

      10.1038/s41598-018-34166-4

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Sake lees extract improves hepatic lipid accumulation in high fat diet-fed mice.2017

    • Author(s)
      Kubo H, Hoshi M, Matsumoto T, Irie M, Oura S, Tsutsumi H, Hata Y, Yamamoto Y, Saito K
    • Journal Title

      Lipids Health Dis.

      Volume: 16(1) Issue: 1 Pages: 106-106

    • DOI

      10.1186/s12944-017-0501-y

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] The deficit of quinolinic acid phosphoribosyltransferase induces hypolocomotion and cognitive impairment through impairment of dopaminergic neuronal function2019

    • Author(s)
      Moe Niijima, Akihiro Mouri, Tomoaki Teshigawara, Kazuo Kunisawa, Hisayoshi Kubota, Mami Hirakawa, Yuko Mori, Masato Hoshi, Yasuko Yamamoto, Toshitaka Nabeshima, Kuniaki Saito
    • Organizer
      AsCNP
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Kynurenine Plays an Immunosuppressive Role in 2,4,6-Trinitrobenzene Sulfate-Induced Colitis in Mice2018

    • Author(s)
      Masato Hoshi
    • Organizer
      15th International Society for Tryptophan Reserch
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Patent(Industrial Property Rights)] KAT阻害活性を有する化合物を含有するがん治療用組成物2019

    • Inventor(s)
      星雅人
    • Industrial Property Rights Holder
      星雅人
    • Industrial Property Rights Type
      特許
    • Filing Date
      2019
    • Related Report
      2018 Research-status Report
  • [Patent(Industrial Property Rights)] D-サイクロセリンまたはその塩を含有するがん治療用組成物2018

    • Inventor(s)
      星 雅人
    • Industrial Property Rights Holder
      星 雅人
    • Industrial Property Rights Type
      特許
    • Filing Date
      2018
    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2021-02-19  

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