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Analysis of diversity in tyrosine kinase inhibitor resistance in mast cell tumors toward establishment of individualized therapy

Research Project

Project/Area Number 19H03131
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 42020:Veterinary medical science-related
Research InstitutionNippon Veterinary and Life Science University

Principal Investigator

Bonkobara Makoto  日本獣医生命科学大学, 獣医学部, 教授 (50343611)

Co-Investigator(Kenkyū-buntansha) 佐々木 崇  札幌医科大学, 医学部, 講師 (50723897)
田崎 弘之  日本獣医生命科学大学, 獣医学部, 教授 (80231405)
呰上 大吾  東京農工大学, (連合)農学研究科(研究院), 准教授 (80453934)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2021: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2020: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2019: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000)
Keywords肥満細胞腫 / チロシンキナーゼ阻害剤 / 耐性化 / 個別化治療 / 犬 / トセラニブ / 耐性 / チロシンキナーゼ / KIT変異 / 猫
Outline of Research at the Start

肥満細胞腫では、幹細胞因子受容体(KIT)を標的としたチロシンキナーゼ(TK)阻害剤が劇的に奏功する。一方で、治療経過とともに腫瘍は耐性を獲得し再進行する。申請者らは、この耐性化には 1) KIT遺伝子二次変異の出現、2) KITの側副シグナルの活性化、3) KITの過剰発現、4) これらとは異なる未知の分子機構の誘導、5) 耐性素因を持つ超微量集団の拡大 が単独あるいは複合して関与する可能性を見出した。これらの発見に基づき、本研究では、肥満細胞腫のTK阻害剤耐性化機構を多様性の観点から明らかにし、症例ごとの耐性化機構に応じた個別化治療戦略の構築を目指す。

Outline of Final Research Achievements

This study indicates that accumulation of KIT mutations due to TK inhibitor exposure is important for TK inhibitor resistance in mast cell tumors, which results in TK inhibitor-resistant secondary mutations in KIT. In addition, it was shown that ultra-trace amounts of TK inhibitor-resistant clones may pre-exist in tumor tissues. On the other hand, although various mutations of KIT are detected in canine mast cell tumors, it was not possible to predict whether or not TK inhibitor resistance would occur based solely on the site and type of mutation. Therefore, it was considered that development of highly accurate and extensive genetic analysis system, such as next-generation sequencing analysis, for detection of KIT mutation and further functional characterization the mutant KIT proteins are important in order to establish individualized therapies to overcome TK inhibitor resistance.

Academic Significance and Societal Importance of the Research Achievements

本研究では、犬の肥満細胞腫におけるチロシンキナーゼ阻害剤耐性化メカニズムの一端を明らかにした。また、この知見は耐性の克服に向けた新たな個別化治療の構築につながると考えられる。人においても同様の腫瘍が主に小児において発生し(人では肥満細胞症という)、チロシンキナーゼ阻害剤が奏功する場合がある。しかしながら、犬や猫の肥満細胞腫と同様に最終的に耐性が生じることが問題となっている。本研究から得られた成果は、小児肥満細胞症におけるチロシンキナーゼ阻害剤耐性の克服戦略の開発にも貢献する可能性が高く、社会的に重要な意義を持つ成果と考える。

Report

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

    (14 results)

All 2022 2021 2020 2019 Other

All Int'l Joint Research (2 results) Journal Article (10 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 10 results,  Open Access: 6 results) Presentation (2 results) (of which Invited: 1 results)

  • [Int'l Joint Research] University of Bologna(イタリア)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] University of Bologna(イタリア)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Molecular characterization of canine <scp>SHP2</scp> mutants and anti‐tumour effect of <scp>SHP2</scp> inhibitor, <scp>SHP099</scp> , in a xenograft mouse model of canine histiocytic sarcoma2021

    • Author(s)
      Tani Hiroyuki、Miyamoto Ryo、Nagashima Tomokazu、Michishita Masaki、Tamura Kyoichi、Bonkobara Makoto
    • Journal Title

      Veterinary and Comparative Oncology

      Volume: 20 Issue: 1 Pages: 109-117

    • DOI

      10.1111/vco.12751

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A canine case of malignant melanoma carrying a KIT c.1725_1733del mutation treated with toceranib: a case report and in vitro analysis2021

    • Author(s)
      Tani Hiroyuki、Miyamoto Ryo、Noguchi Syunya、Kurita Sena、Nagashima Tomokazu、Michishita Masaki、Yayoshi Naoko、Tamura Kyoichi、Bonkobara Makoto
    • Journal Title

      BMC Veterinary Research

      Volume: 17 Issue: 1 Pages: 147-147

    • DOI

      10.1186/s12917-021-02864-3

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Commitment toward cell death by activation of autophagy with survivin inhibitor YM155 in two canine squamous cell carcinoma cell lines with high expression of survivin2021

    • Author(s)
      Miyamoto Ryo、Tani Hiroyuki、Ikeda Tomoyo、Saima Hono、Tamura Kyoichi、Bonkobara Makoto
    • Journal Title

      Research in Veterinary Science

      Volume: 135 Pages: 412-415

    • DOI

      10.1016/j.rvsc.2020.10.025

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Foxp3+ Regulatory T Cells Associated With CCL17/CCR4 Expression in Carcinomas of Dogs.2020

    • Author(s)
      Maeda S, Nakazawa M, Uchida M, Yoshitake R, Nakagawa T, Nishimura R, Miyamoto R, Bonkobara M, Yonezawa T, Momoi Y
    • Journal Title

      Veterinary Pathology

      Volume: 29 Issue: 4 Pages: 1-10

    • DOI

      10.1177/0300985820921535

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Nimustine Treatment of 11 Cases of Canine Histiocytic Sarcoma.2020

    • Author(s)
      Tani H, Kurita S, Miyamoto R, Sawada H, Fujiwara-Igarashi A, Michishita M, Azakami D, Hasegawa D, Tamura K, Bonkobara M.
    • Journal Title

      J Am Anim Hosp Assoc.

      Volume: 56 Issue: 3 Pages: 146-146

    • DOI

      10.5326/jaaha-ms-6959

    • Related Report
      2020 Annual Research Report 2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The secondary KIT mutation p.Ala510Val in a cutaneous mast cell tumour carrying the activating mutation p.Asn508Ile confers resistance to masitinib in dogs2020

    • Author(s)
      Gentilini Fabio、Turba Maria Elena、Dally Claire、Takanosu Masamine、Kurita Sena、Bonkobara Makoto
    • Journal Title

      BMC Veterinary Research

      Volume: 16 Issue: 1 Pages: 64-64

    • DOI

      10.1186/s12917-020-02284-9

    • Related Report
      2020 Annual Research Report 2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Foxp3+ Regulatory T Cells Associated with CCL17/CCR4 Expression in Carcinomas of Dogs2020

    • Author(s)
      Shingo Maeda, Maho Nakazawa, Mona Uchida, Ryohei Yoshitake, Takayuki Nakagawa, Ryohei Nishimura, Ryo Miyamoto, Makoto Bonkobara, Tomohiro Yonezawa, Yasuyuki Momoi
    • Journal Title

      Veterinary Pathology

      Volume: In press

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Genetic alterations of KIT during clonal expansion and subsequent acquisition of resistance to toceranib in a canine mast cell tumor cell line.2019

    • Author(s)
      Kurita S, Miyamoto R, Tani H, Kobayashi M, Sasaki T, Tamura K, Bonkobara M.
    • Journal Title

      J Vet Pharmacol Ther.

      Volume: 42 Issue: 6 Pages: 673-681

    • DOI

      10.1111/jvp.12816

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Canine histiocytic sarcoma cell lines with SHP2 p.Glu76Gln or p.Glu76Ala mutations are sensitive to allosteric SHP2 inhibitor SHP099.2019

    • Author(s)
      Tani H, Kurita S, Miyamoto R, Ochiai K, Tamura K, Bonkobara M.
    • Journal Title

      Veterinary and Comparative Oncology

      Volume: - Issue: 2 Pages: 161-168

    • DOI

      10.1111/vco.12524

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Anti-tumour activity of oncolytic reovirus against canine histiocytic sarcoma cells2019

    • Author(s)
      Igase Masaya、Shousu Kazuha、Fujiki Noriyuki、Sakurai Masashi、Bonkobara Makoto、Hwang Chung C.、Coffey Matt、Noguchi Shunsuke、Nemoto Yuki、Mizuno Takuya
    • Journal Title

      Veterinary and Comparative Oncology

      Volume: 17 Issue: 2 Pages: 184-193

    • DOI

      10.1111/vco.12468

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 分子標的治療薬のレビュー2022

    • Author(s)
      盆子原誠
    • Organizer
      第25回日本獣医がん学会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 犬骨髄細胞を用いた骨髄由来免疫抑制細胞の分化誘導2019

    • Author(s)
      浅倉大輝、亀山仁美、田邉優、佐藤志織、菅沼亮太、田中文哉、山下諒、盆子原誠、田村恭一
    • Organizer
      日本獣医臨床病理学会2019年大会
    • Related Report
      2019 Annual Research Report

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

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