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Elucidation of female cancer pathophysiology based on the estrogen-regulatory and -refractory systems and applications of therapeutic targets related to the estrogen evasion mechanisms.

Research Project

Project/Area Number 20K08916
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 54040:Metabolism and endocrinology-related
Research InstitutionSaitama Medical University

Principal Investigator

Sato Wataru  埼玉医科大学, 医学部, 助教 (10772783)

Co-Investigator(Kenkyū-buntansha) 池田 和博  埼玉医科大学, 医学部, 准教授 (30343461)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
KeywordsEfp / ステロイドホルモン / 遺伝子発現 / トリプルネガティブ乳がん / 乳がん / 子宮体がん / がん / 腫瘍免疫
Outline of Research at the Start

エストロゲンは乳がん、子宮体がんなどの女性がんの増殖・進行と深い関係を有する。これら女性がんに対してホルモン療法が行なわれるが、抵抗性を獲得するものが多く、臨床上大きな問題である。申請者らが独自に単離したエストロゲン応答遺伝子Efpなどは、エストロゲン応答性のがんに加えてホルモン抵抗性を獲得したがんにおいても腫瘍増殖・転移を制御することが想定され、エストロゲン制御機構からの逸脱に関わるとの着想を得たが、詳しいメカニズムは明らかでない。申請者らは、患者由来がん細胞と異種移植を活用した臨床により近いモデルでの解析を行い、エストロゲン制御機構からの逸脱と薬剤耐性のメカニズムの解明を目指す。

Outline of Final Research Achievements

In order to elucidate the effect of estrogen responsive finger protein (Efp) in triple negative breast cancer (TNBC), we analyzed the expression of Efp using TNBC patient-derived cells and cell line, and found that Efp is overexpressed in these cancer cells. Gain- and loss-of function analysis demonstrated that Efp is involved in the proliferation, migration, and cell cycle progression of TNBC cells. Furthermore, transcriptome analysis showed that Efp is involved in the regulation of expression of cell cycle-related genes. These findings suggest that Efp acts as a tumor-promoting factor in TNBC, implying a potential therapeutic target in clinical treatment.

Academic Significance and Societal Importance of the Research Achievements

本研究によって、Efpはトリプルネガティブ乳がん(TNBC)において腫瘍促進的な役割を担っていることをはじめて明らかにした。また、Efpによって発現制御を受ける細胞周期関連遺伝子としてCDCA7とHELLSを明らかにし、Efpの細胞内作用メカニズムとして新たな経路を示す学術的知見を得た。エストロゲン受容体陽性の乳がんに加え、TNBCにおいてもEfpが治療標的となり得る可能性を明らかにしたことは、治療標的が少なく予後不良であるTNBCに対する新たな治療法開発への応用として期待され、社会的意義を有すると考えられた。

Report

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

    (10 results)

All 2022 2021 2020

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 5 results) Presentation (5 results)

  • [Journal Article] Efp promotes growth of triple-negative breast cancer cells2022

    • Author(s)
      Sato Wataru、Ikeda Kazuhiro、Gotoh Noriko、Inoue Satoshi、Horie Kuniko
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 624 Pages: 81-88

    • DOI

      10.1016/j.bbrc.2022.07.071

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Testis-expressed gene 11 inhibits cisplatin-induced DNA damage and contributes to chemoresistance in testicular germ cell tumor2022

    • Author(s)
      Kitayama Sachi、Ikeda Kazuhiro、Sato Wataru、Takeshita Hideki、Kawakami Satoru、Inoue Satoshi、Horie Kuniko
    • Journal Title

      Scientific Reports

      Volume: 12 Issue: 1 Pages: 18423-18423

    • DOI

      10.1038/s41598-022-21856-3

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] PSPC1 is a potential prognostic marker for hormone-dependent breast cancer patients and modulates RNA processing of ESR1 and SCFD22022

    • Author(s)
      Takeiwa Toshihiko、Ikeda Kazuhiro、Suzuki Takashi、Sato Wataru、Iino Kaori、Mitobe Yuichi、Kawabata Hidetaka、Horie Kuniko、Inoue Satoshi
    • Journal Title

      Scientific Reports

      Volume: 12 Issue: 1 Pages: 9495-9495

    • DOI

      10.1038/s41598-022-13601-7

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Clinicopathological and Preclinical Patient-Derived Model Studies Define High Expression of NRN1 as a Diagnostic and Therapeutic Target for Clear Cell Renal Cell Carcinoma2021

    • Author(s)
      Kamada Shuhei、Ikeda Kazuhiro、Suzuki Takashi、Sato Wataru、Kitayama Sachi、Kawakami Satoru、Ichikawa Tomohiko、Horie Kuniko、Inoue Satoshi
    • Journal Title

      Frontiers in Oncology

      Volume: 11 Pages: 758503-758503

    • DOI

      10.3389/fonc.2021.758503

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Proliferation‐associated long noncoding RNA, TMPO‐AS1 , is a potential therapeutic target for triple‐negative breast cancer2020

    • Author(s)
      Mitobe Yuichi、Ikeda Kazuhiro、Sato Wataru、Kodama Yukinobu、Naito Mitsuru、Gotoh Noriko、Miyata Kanjiro、Kataoka Kazunori、Sasaki Hitoshi、Horie‐Inoue Kuniko、Inoue Satoshi
    • Journal Title

      Cancer Science

      Volume: 1 Issue: 7 Pages: 1-20

    • DOI

      10.1111/cas.14498

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Efp promotes the growth and migration of triple-negative breast cancer cells2022

    • Author(s)
      佐藤航、池田和博、堀江公仁子、井上聡
    • Organizer
      第81回日本癌学会学術総会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 患者由来トリプルネガティブ乳がん細胞においてEfpは細胞周期関連因子を標的として細胞増殖をもたらす2022

    • Author(s)
      佐藤航、池田和博、堀江公仁子、井上聡
    • Organizer
      日本患者由来がんモデル学会学術集会 2022
    • Related Report
      2022 Annual Research Report
  • [Presentation] エストロゲン応答遺伝子Ebag9欠損マウスにおける骨形成低下とオートファジー制御2021

    • Author(s)
      東浩太郎、池田和博、柴祥子、佐藤航、堀江公仁子、田中伸哉、井上聡
    • Organizer
      第39回日本骨代謝学会学術集会
    • Related Report
      2021 Research-status Report
  • [Presentation] Patient-derived renal cancer cell model reveals nuritin1 as a tumor promoting and prognostic factor2021

    • Author(s)
      Shuhei Kamada, Kazuhiro Ikeda, Takashi Suzuki, Wataru Sato, Sachi Kitayama, Satoru Kawakami, Tomohiko Ichikawa, Kuniko Horie, Satoshi Inoue
    • Organizer
      第80回 日本癌学会学術総会
    • Related Report
      2021 Research-status Report
  • [Presentation] エストロゲン応答遺伝子Ebag9欠損マウスにおける骨脆弱化とその分子メカニズム2020

    • Author(s)
      東浩太郎、柴祥子、池田和博、佐藤航、堀江公仁子、田中伸哉、井上聡
    • Organizer
      第40回日本骨形態計測学会
    • Related Report
      2020 Research-status Report

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

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