• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Targeting the fusion genes using pyrrole-imidazole polyamides in Ewing and synovial sarcoma cells

Research Project

Project/Area Number 16K07188
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Tumor therapeutics
Research InstitutionChiba Cancer Center (Research Institute)

Principal Investigator

Takatori Atsushi  千葉県がんセンター(研究所), がん治療開発グループ, 室長 (40455390)

Co-Investigator(Kenkyū-buntansha) 岩田 慎太郎  国立研究開発法人国立がん研究センター, 中央病院, 医員 (90549685)
Research Collaborator WATANABE takayoshi  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords軟部肉腫 / ケミカルバイオロジー / ポリアミド化合物 / 標的治療 / 融合遺伝子 / アルキル化剤 / エピジェネティクス制御化合物 / 癌 / 抗がん物質探索
Outline of Final Research Achievements

Ewing and synovial sarcoma, highly aggressive and metastatic tumors in the children and young adults, are caused by fusion genes of EWS-FLI1 and SS18-SSX, respectively. Although the fusion products are attractive protein-level targets, no therapeutic candidates are currently available. We have developed seco-CBI-conjugated pyrrole-imidazole polyamides (PIP-seco-CBIs) that selectively alkylate DNA at specific motifs to induce target gene downregulation and tumor growth inhibition. In this study, we examined the inhibitory effects of different PIP-seco-CBIs as well as PIP conjugated with epigenetic modifiers, SAHA and CTB, in sarcoma cells. Some of the compounds induced cell death with substantially lower IC50 values and effectively suppressed the expression of fusion genes. Additionally, PIP-CTB compounds demonstrated a cell growth inhibitory effect. Our data suggest that PIP compounds can lead to innovative therapeutic candidates for malignant sarcomas harboring fusion oncogenes.

Academic Significance and Societal Importance of the Research Achievements

軟部肉腫の中には、融合遺伝子が原因遺伝子とし同定されているものも少なくなく、早期の標的治療薬の開発が望まれている。しかし、軟部肉腫の原因となっている融合遺伝子の多くは転写因子の遺伝子座における染色体転座が原因となっているため、分子標的薬の開発の難しさが課題となっている。本研究により、肉腫の融合遺伝子を直接標的とした治療法が可能であることが示され、融合遺伝子を原因とする他のがんへの応用も期待できる。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (6 results)

All 2018 2017 2016

All Presentation (6 results) (of which Int'l Joint Research: 2 results)

  • [Presentation] PIポリアミドDNAアルキル化剤によるEwing肉腫のEWS-FLI1融合遺伝子標的治療薬開発2018

    • Author(s)
      太田陽子、養田裕行、渡部隆義、平岡桐子、クリシュナムーティ サクティシリ、篠崎喜脩、岩田慎太郎、田中美和、中村卓郎、永瀬浩喜、高取敦志
    • Organizer
      第60回日本小児血液・がん学会学術集会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Development of novel therapeutic agents targeting amplified genomic region of oncogenes2017

    • Author(s)
      Atsushi Takatori, Shintaro Iwata, Kiriko Hiraoka, Sakthisri Krishnamurthy, Hiroyuki Yoda, Takayoshi Watanabe, Yoshinao Shinozaki, Miwa Tanaka, Takuro Nakamura, Hiroki Nagase
    • Organizer
      第76回日本癌学会学術総会
    • Related Report
      2017 Research-status Report
  • [Presentation] Targeting the amplified MYCN gene using PI polyamide alkylating agent in neuroblastoma2017

    • Author(s)
      A Takatori, H Yoda, T Inoue, T Watanabe, Y Shinozaki, N Koshikawa, S Wakana, H Nagase
    • Organizer
      3rd Asia-Pacific International Symposium of Neuroblastoma
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Targeting the EWS-FLI1 fusion gene by pyrrole-imidazole polyamide alkylator in Ewing sarcoma cells2016

    • Author(s)
      Atsushi Takatori, Shintaro Iwata, Kiriko Hiraoka, Sakthisri Krishnamurthy, Hiroyuki Yoda, Takayoshi Watanabe, Yoshinao Shinozaki, Miwa Tanaka, Takuro Nakamura, Hiroki Nagase
    • Organizer
      第75回日本癌学会学術総会
    • Place of Presentation
      パシフィコ横浜
    • Year and Date
      2016-10-06
    • Related Report
      2016 Research-status Report
  • [Presentation] 高取 敦志、平岡 桐子、養田 裕行、クリシュナムーティ サクティシリ、井上 貴博、 篠崎 喜脩、渡部 隆義、越川 信子、永瀬 浩喜2016

    • Author(s)
      がん遺伝子を標的としたピロール・イミダゾール・ポリアミドDNAアルキル化剤による治療戦略
    • Organizer
      平成28年度先端モデル動物支援若手技術講習会
    • Place of Presentation
      蓼科グランドホテル滝の湯
    • Year and Date
      2016-09-14
    • Related Report
      2016 Research-status Report
  • [Presentation] Sarcoma Study in the Far East -Result of Japanese group studies-2016

    • Author(s)
      Shintaro Iwata
    • Organizer
      1st Birmingham Oncology and Arthroplasty Meeting
    • Place of Presentation
      Birmingham, UK
    • Year and Date
      2016-07-08
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research

URL: 

Published: 2016-04-21   Modified: 2020-03-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi