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Research on pathogenesis of DNA-highly methylated type colorectal cancer and the development of diagnosis and treatment methods

Research Project

Project/Area Number 19H03508
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 InstitutionTohoku University

Principal Investigator

ISHIOKA Chikashi  東北大学, 医学系研究科, 教授 (60241577)

Co-Investigator(Kenkyū-buntansha) 高橋 雅信  東北大学, 加齢医学研究所, 准教授 (00447161)
高橋 信  東北大学, 大学病院, 講師 (20431570)
大内 康太  東北大学, 大学病院, 助教 (50781291)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2021: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2020: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2019: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Keywords大腸癌 / 高DNAメチル化型大腸癌 / BRAF変異型大腸癌 / 抗EGFR抗体薬 / 薬剤感受性 / 薬剤耐性 / miR-193a-3p / DNAメチル化 / DNA高メチル化型大腸癌 / 薬剤抵抗性克服 / シグナル伝達異常 / 免疫学的微小環境 / 分子機構 / 診断と治療
Outline of Research at the Start

平成31年度から平成33年度の3年間に、DNA高メチル化型大腸癌の発がんおよび治療抵抗性の分子機構を解明し、抗がん薬の新規のバイオマーカーや治療標的を探索するため、
研究1.網羅的分子解析データの統合解析によるシグナル伝達異常や腫瘍の免疫学的微小環境や腸管環境を含めた発がんと治療抵抗性の分子機構の探索
研究2.大腸癌組織の網羅的分子解析データの追加収集とその統合解析による新規バイオマーカーと治療標的の探索
研究3.大腸癌細胞株を用いたDNA高メチル化型大腸癌の薬剤抵抗性克服の治療モデル探索の3つの研究を実施する。

Outline of Final Research Achievements

The purpose of this study is to determine the cancer-causing molecular mechanism of DNA high methylated colorectal cancer (HMCC) and to search for a treatment model. We found that the addition of antibiotics improved the effect of the OX-based chemotherapy in mCRC, suggesting that a microbiome may be associated with the mechanisms. The gene expression profile aCRCS was useful in the selection of the treatment of oxaliplatin-based or irinotecan-based chemotherapy in mCRC. In the BRAF mutated colorectal cancer cells, expression of miR-193a-3p potentiated the effect of the BRAF and the MEK inhibitors by suppressing phosphorylation of multiple proteins of the MAPK-related pathway(s). The expression of 57 genes of the 231 genes in the cetuximab gene expression signature (CMS) was regulated by a DNA methylation state of the promoter region. The result suggested that the effect of the anti-EGFR antibody therapy was predictable by a specific gene expression regulated by the DNA methylation.

Academic Significance and Societal Importance of the Research Achievements

本研究の学術的意義は、難治がんの克服に向けた研究である点にある。本研究により、切除不能進行・再発大腸癌(mCRC)の発がん機構の解明、治療感受性予測、治療感受性増強に必要な主に分子基盤に関する基礎的知見が複数得られ、mCRCの治療選択のための分子診断やBRAF変異がんなど、希少分画の新たな治療モデルの提案につながった。この研究成果により、将来、体外診断薬や治療薬の開発につながる可能性がある。

Report

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

    (10 results)

All 2022 2021 2020 2019 Other

All Journal Article (3 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (6 results) (of which Int'l Joint Research: 4 results,  Invited: 1 results) Remarks (1 results)

  • [Journal Article] A modified MethyLight assay predicts the clinical outcomes of anti-epidermal growth factor receptor treatment in metastatic colorectal cancer2022

    • Author(s)
      Ouchi K, Takahashi S, Okita A, Sakamoto Y, Muto O, Amagai K, Okada T, Ohori H, Shinozaki E, Ishioka C.
    • Journal Title

      Cancer Science

      Volume: 113 Issue: 3 Pages: 1057-1068

    • DOI

      10.1111/cas.15252

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Tumor suppressor miR-193a-3p enhances efficacy of BRAF/MEK inhibitors in BRAF-mutated colorectal cancer2021

    • Author(s)
      Hiraide S, Takahashi M, Yoshida Y, Yamada H, Komine K, Ishioka C.
    • Journal Title

      Cancer Science

      Volume: 112 Issue: 9 Pages: 3856-3870

    • DOI

      10.1111/cas.15075

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Advanced colorectal cancer subtypes (aCRCS) help select oxaliplatin-based or irinotecan-based therapy for colorectal cancer.2021

    • Author(s)
      Takahashi S,Sakamoto Y,Denda T,Takashima A,Komatsu Y,Nakamura M,Ohori H,Yamaguchi T,Kobayashi Y,Baba H,Kotake M,Amagai K,Kondo H,Shimada K,Sato A,Yuki S,Okita A,Ouchi K,Komine K,Watanabe M,Morita S,Ishioka C.
    • Journal Title

      Cancer Science

      Volume: 112 Issue: 4 Pages: 1567-1578

    • DOI

      10.1111/cas.14841

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] The functional roles of miRNA-193a-3p in colorectal cancer.2021

    • Author(s)
      Hiraide S, Takahashi M, Yoshida Y, Komine K, Ishioka C.
    • Organizer
      AACR Annual Meeting 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 高メチル化大腸がんが抗EGFR抗体薬抵抗性となる分子生物学的メカニズムの探索2020

    • Author(s)
      大内康太,高橋信,沖田啓,大槻泰史,石岡千加史
    • Organizer
      第24回日本がん分子標的治療学会学術集会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Development of an in vitro diagnostic test to predict the clinical outcome of anti-EGFR treatment based on DNA methylation status.2020

    • Author(s)
      Ouchi K,Takahashi S,Ishioka C
    • Organizer
      7th US-Japan Workshop on Biomarkers for Cancer Early Detection.
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Analysis of consensus molecular subtypes (CMS) classification in the TRICOLORE trial: A randomized phase 3 trial of S-1 and irinotecan plus bevacizumab versus mFOLFOX6 or CapeOX plus bevacizumab as first-line treatment for metastatic colorectal cancer.2020

    • Author(s)
      1.Yuki S,Gamoh M,Denda T,Takashima A,Takahashi S,Nakamura M,Ohori H,Yamaguchi T,Kobayashi Y,Baba H,Kotake M,Amagi K,Kondo H,Shimada K,Sato A,Ishioka C,Komine K,Ouchi K,Morita S,Komatu Y
    • Organizer
      ASCO 2020 Gastrointestinal Cancers Symposium
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The Advanced Research Center for Innovations in Next-Generation Medicine(INGEM) and personalised medicine.2020

    • Author(s)
      Ishioka C
    • Organizer
      UK-Japan Symposium on Data-Driven Health: Data strategies to predict risk, prevent and manage disease in individuals and populations.
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Development of novel in vitro diagnostics to predict the efficacy of anti-EGFR treatment based on DNA methylation status.2019

    • Author(s)
      4.大内康太,高橋信,沖田啓,坂本康寛,武藤理,天貝賢二,岡田恭穂,大堀久詔,篠崎英司,蒲生真紀夫,石岡千加史
    • Organizer
      第 17 回日本臨床腫瘍学会学術集会
    • Related Report
      2019 Annual Research Report
  • [Remarks]

    • URL

      http://www.co.idac.tohoku.ac.jp/class/contents-research.html

    • Related Report
      2019 Annual Research Report

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

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