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Tumor agonistic and tissue specific role of BRAF mutations in cancer

Research Project

Project/Area Number 20H03542
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 50020:Tumor diagnostics and therapeutics-related
Research InstitutionAichi Cancer Center Research Institute

Principal Investigator

Ebi Hiromichi  愛知県がんセンター(研究所), がん標的治療TR分野, 分野長 (00645145)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2022: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2021: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2020: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
KeywordsBRAF / mutation / molecular classification / クラス分類 / 獲得変異 / 機能解析 / tumor agonistic / サブタイプ / 個別化治療 / 臓器多様性 / BRAF変異 / tumor agonistic therapy
Outline of Research at the Start

BRAF変異腫瘍は、変異タンパクの機能により3種類に分類される。また、変異タンパクが果たす役割については、腫瘍の発生臓器により異なることが示唆されている。本研究では、これまでに報告されている変異のうち、機能が判明していないものについて機能解析を行う。そのうえで、各サブタイプについて国際共同研究により検体・患者由来ゼノグラフトを用いた解析を行い、臓器特異性の背景を解明する。最終的には、各変異に対し、臓器特異性に基づく有効な治療を提唱することが目的である。

Outline of Final Research Achievements

We performed functional analysis of 106 variants of BRAF with unknown function and identified 17 novel gain-of-function mutations. The reasons for the gain-of-function of these mutations were inferred from the protein sequence, structure, and interactions, and a predictive model of function was constructed. We also performed expression and pathway analyses of colorectal cancer cases with each BRAF mutation, which can be classified into three types based on their functions, and examined the effects of phenotypic differences on tumorigenesis. In addition, we focused on Class I mutant BRAF colorectal cancer and identified candidate molecules that could be responsible for resistance to currently approved inhibitors.

Academic Significance and Societal Importance of the Research Achievements

ゲノム医療特に包括的遺伝子プロファイリング検査が臨床導入され、近年BRAF変異が同定される機会が増えている。それらの多くは機能不明バリアントであることから、本研究により、機能不明バリアントの機能予測が可能になれば、患者の治療法選択に役立てることが可能である。また、BRAF Class 1変異(V600変異)大腸がんについては、現在抗EGFR抗体とBRAF阻害薬の併用療法がされているが、30%程度の患者に奏効するのみである。本研究ではパスウエイ解析の結果、Class 1変異が2種類に分類される結果が得られており、今後阻害薬の効果との関連を明らかにすることで、新たな治療法を提唱できる可能性がある。

Report

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

    (20 results)

All 2023 2022 2021 2020 Other

All Int'l Joint Research (2 results) Journal Article (13 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 11 results,  Open Access: 4 results) Presentation (5 results) (of which Invited: 5 results)

  • [Int'l Joint Research] Virginia Commonwealth University/Memorial Sloan Kettering Cancer Center(米国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] Memorial Sloan Kettering Cancer Center(米国)

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Drug-Tolerant Persister Cells After EGFR Tyrosine Kinase Inhibitor Treatment: Their Origin and the Influences From the Tumor Microenvironment2023

    • Author(s)
      Ebi Hiromichi
    • Journal Title

      Journal of Thoracic Oncology

      Volume: 18 Issue: 4 Pages: 399-401

    • DOI

      10.1016/j.jtho.2022.12.010

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] ARAF protein kinase activates RAS by antagonizing its binding to RASGAP NF12022

    • Author(s)
      Su W、Mukherjee R、Yaeger R、Son J、Xu J、Na N、Merna TN、Hechtman J、Paroder V、Lin M、Mattar M、Qiu J、Chang Q、Zhao H、Zhang J、Little M、Adachi Y、Han SW、Taylor BS.、Ebi H、Abdel-Wahab O、de Stanchina E、Rudin CM.、Janne PA.、McCormick F、Yao Z、Rosen N.
    • Journal Title

      Molecular Cell

      Volume: 82 Issue: 13 Pages: 2443-2457.e7

    • DOI

      10.1016/j.molcel.2022.04.034

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] High-risk neuroblastoma with NF1 loss of function is targetable using SHP2 inhibition2022

    • Author(s)
      Cai J、Jacob S、Kurupi R、Dalton KM.、Coon C、Greninger P、Egan RK.、Stein GT.、Murchie E、McClanaghan J、Adachi Y、Hirade K、Dozmorov M、Glod J、Boikos SA.、Ebi H、Hao H、Caponigro G、Benes CH.、Faber AC.
    • Journal Title

      Cell Reports

      Volume: 40 Issue: 4 Pages: 111095-111095

    • DOI

      10.1016/j.celrep.2022.111095

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] MAPK経路、がんゲノム医療時代の分子腫瘍学2022

    • Author(s)
      1.衣斐寛倫
    • Journal Title

      病理と臨床

      Volume: 40 Pages: 092-095

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Escaping KRAS: Gaining Autonomy and Resistance to KRAS Inhibition in KRAS Mutant Cancers2021

    • Author(s)
      Adachi Yuta、Kimura Ryo、Hirade Kentaro、Ebi Hiromichi
    • Journal Title

      Cancers

      Volume: 13 Issue: 20 Pages: 5081-5081

    • DOI

      10.3390/cancers13205081

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] CIRCULATE‐Japan: Circulating tumor DNA?guided adaptive platform trials to refine adjuvant therapy for colorectal cancer2021

    • Author(s)
      Taniguchi Hiroya、Nakamura Yoshiaki、Kotani Daisuke、Yukami Hiroki、Mishima Saori、Sawada Kentaro、Shirasu Hiromichi、Ebi Hiromichi、Yamanaka Takeharu、Aleshin Alexey、Billings Paul R.、Rabinowitz Matthew、Oki Eiji、Takemasa Ichiro、Kato Takeshi、Mori Masaki、Yoshino Takayuki
    • Journal Title

      Cancer Science

      Volume: 112 Issue: 7 Pages: 2915-2920

    • DOI

      10.1111/cas.14926

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] TGF-β-dependent reprogramming of amino acid metabolism induces epithelial?mesenchymal transition in non-small cell lung cancers2021

    • Author(s)
      Nakasuka Fumie, Tabata Sho, Sakamoto Takeharu, Hirayama Akiyoshi, Ebi Hiromichi, Yamada Tadaaki, Umetsu Ko, Ohishi Maki, Ueno Ayano, Goto Hisatsugu, Sugimoto Masahiro, Nishioka Yasuhiko, Yamada Yasuhiro, Tomita Masaru, Sasaki Atsuo T, Yano Seiji, Soga Tomoyoshi
    • Journal Title

      Communications Biology

      Volume: 4 Issue: 1 Pages: 1-12

    • DOI

      10.1038/s42003-021-02323-7

    • NAID

      120007178465

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Circulating tumor DNA-guided treatment with pertuzumab plus trastuzumab for HER2-amplified metastatic colorectal cancer: a phase 2 trial2021

    • Author(s)
      Nakamura Y、Okamoto W、Kato T、Esaki T、Kato K、Komatsu Y、Yuki S、Masuishi T、Nishina T、Ebi H、Sawada K、Taniguchi H、Fuse N、Nomura S、Fukui M、Matsuda S、Sakamoto Y、Uchigata H、Kitajima K、Kuramoto N、Asakawa T、Olsen S、Odegaard J、Sato A、Fujii S、Ohtsu A、Yoshino T
    • Journal Title

      Nature Medicine

      Volume: 27 Issue: 11 Pages: 1899-1903

    • DOI

      10.1038/s41591-021-01553-w

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Unmasking BCL-2 Addiction in Synovial Sarcoma by Overcoming Low NOXA2021

    • Author(s)
      Fairchild Carter K.、Floros Konstantinos V.、Jacob Sheeba、Coon Colin M.、Puchalapalli Madhavi、Hu Bin、Harada Hisashi、Dozmorov Mikhail G.、Koblinski Jennifer E.、Smith Steven C.、Domson Gregory、Leverson Joel D.、Souers Andrew J.、Takebe Naoko、Ebi Hiromichi、Faber Anthony C.、Boikos Sosipatros A.
    • Journal Title

      Cancers

      Volume: 13 Issue: 10 Pages: 2310-2310

    • DOI

      10.3390/cancers13102310

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] MAPKシグナル経路を標的とする分子標的治療2021

    • Author(s)
      衣斐寛倫
    • Journal Title

      がん分子標的治療 (Journal of Molecular Targeted Therapy for Cancer)

      Volume: 18 Pages: 193-198

    • Related Report
      2020 Annual Research Report
  • [Journal Article] BIG BANG study (EPOC1703): multicentre, proof-of-concept, phase II study evaluating the efficacy and safety of combination therapy with binimetinib, encorafenib and cetuximab in patients with BRAF non-V600E mutated metastatic colorectal cancer2020

    • Author(s)
      Kotani D, Bando H, Taniguchi H, Masuishi T, Komatsu Y, Yamaguchi K, Nakajima T, Satoh T, Nishina T, Esaki T, Nomura S, Takahashi K, Iida S, Matsuda S, Motonaga S, Fuse N, Sato A, Fujii S, Ohtsu A, Ebi H, Yoshino T.
    • Journal Title

      ESMO open

      Volume: 1 Issue: 1 Pages: e000624-e000624

    • DOI

      10.1136/esmoopen-2019-000624

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Epithelial-to-Mesenchymal Transition is a Cause of Both Intrinsic and Acquired Resistance to KRAS G12C Inhibitor in KRAS G12C-Mutant Non-Small Cell Lung Cancer2020

    • Author(s)
      Adachi Y, Ito K, Hayashi Y, Kimura R, Tan TZ, Yamaguchi R, Ebi H.
    • Journal Title

      Clinical Cancer Research

      Volume: 26 Issue: 22 Pages: 5962-5973

    • DOI

      10.1158/1078-0432.ccr-20-2077

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Japanese Society of Medical Oncology Clinical Guidelines: Molecular Testing for Colorectal Cancer Treatment, 4th edition2020

    • Author(s)
      Ebi H, Bando H, Taniguchi H, Sunakawa Y, Okugawa Y, Hatanaka Y, Hosoda W, Kumamoto K, Nakatani K, Yamazaki K.
    • Journal Title

      Cancer Science

      Volume: 111 Issue: 10 Pages: 3962-3969

    • DOI

      10.1111/cas.14567

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Presentation] KRAS 変異癌における標的治療耐性機構の克服2022

    • Author(s)
      足立 雄太、新津 宏明 、衣斐 寛倫
    • Organizer
      第81回日本癌学会学術総会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Relationship between circulating tumor DNA and molecular phenotype in colorectal cancer2022

    • Author(s)
      衣斐寛倫
    • Organizer
      第81回日本癌学会学術総会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Mechanisms of resistance to RAS-targeting therapies2021

    • Author(s)
      Hiromichi Ebi
    • Organizer
      第19回日本臨床腫瘍学会学術集会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Perspectives for targeted therapy to colon cancer2021

    • Author(s)
      Hiromichi Ebi
    • Organizer
      第80回日本癌学会学術総会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] RAS 変異がんに対する分子標的治療2020

    • Author(s)
      衣斐寛倫
    • Organizer
      日本癌学会学術総会
    • Related Report
      2020 Annual Research Report
    • Invited

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

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