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

Elucidation of the multidrug resistance mechanisms by estrogen-related receptor and development of novel therapeutic strategies in endometrial cancer

Research Project

Project/Area Number 21K16774
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 56040:Obstetrics and gynecology-related
Research InstitutionKyoto Prefectural University of Medicine

Principal Investigator

KOKABU TETSUYA  京都府立医科大学, 医学(系)研究科(研究院), 助教 (80848490)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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)
Keywordsエストロゲン受容体 / エストロゲン関連受容体 / 子宮体癌 / 化学療法抵抗性 / miRNA / ERR / ER / ROS
Outline of Research at the Start

研究代表者はこれまでエストロゲン受容体(ER)に類似したエストロゲン関連受容体(ERR)が子宮体癌において腫瘍増殖、薬剤感受性、血管新生、浸潤、転移、アポトーシスを制御し、有用な治療標的であることを実証してきた。一方で、応答配列を共有するERRとERによるシグナルの相互干渉がもたらす腫瘍病態への影響や、ERRと治療抵抗性獲得の機序についてはほとんど知られておらず、ERRの機能解明は子宮体癌治療において重要な課題である。本研究ではERRとERのシグナル伝達ネットワークの動態解析とERRによる治療抵抗性制御の分子病態を解明し、子宮体癌における新たな治療法を提唱する。

Outline of Final Research Achievements

We previously reported that estrogen-related receptor α (ERRα) regulated tumor progression in endometrial cancer. In the present study, we generated anticancer drug-resistant cell lines using endometrial cancer cell lines (HEC-1A and Ishikawa) and elucidated the mechanism of chemo-resistance related with ERRα, ABCB1 and miR-9. Additionally, we focused on the tumor microenvironment. The nutrient-deprived condition provided cancer cells increased not only levels of GLUT, xCT, MCT, VEGF, HIF-1α, and ERRα, but also resistance to chemotherapy. On the other hand, xCT, which regulates reactive oxygen species, was upregulated both in the nutrient-deprived condition and in the chemo-resistant cells. xCT inhibition increased ROS levels and improved chemo-sensitivity. These results elucidate the mechanism of chemo-resistance in uterine endometrial cancer and suggest the novel molecular target for the chemo-resistant endometrial cancer.

Academic Significance and Societal Importance of the Research Achievements

本邦の子宮体癌患者は急激に増加しているが、予後不良な進行・再発例における治療成績は十分とは言えない。本研究は子宮体癌の腫瘍学的特徴であるホルモン依存性疾患に着目し、エストロゲン伝達系制御を糸口とした治療抵抗性獲得機序の解明と新規治療法提唱を目的とする。
我々はエストロゲン関連受容体(ERRα)が化学療法抵抗性獲得に密接に関与することを示し、またがん微小環境における治療抵抗性獲得機序を解明した。本研究結果は子宮体癌における治療抵抗性機序を解明し、従来の治療法と異なった側面からのアプローチによる、新規治療標的を想起させうるものである。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (11 results)

All 2023 2022 2021

All Journal Article (8 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 8 results,  Open Access: 6 results) Presentation (3 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Computed tomography, magnetic resonance imaging, and positron emission tomography/computed tomography findings for the diagnosis of malignant struma ovarii: A case report2023

    • Author(s)
      Yamauchi Saiko、Kokabu Tetsuya、Kataoka Hisashi、Yoriki Kaori、Takahata Akiko、Mori Taisuke
    • Journal Title

      Journal of Obstetrics and Gynaecology Research

      Volume: 49 Issue: 5 Pages: 1456-1461

    • DOI

      10.1111/jog.15619

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Successful resection of growing teratoma syndrome in the abdominal wall with reconstruction using tensor fascia lata muscle flap: A case report and literature review2023

    • Author(s)
      Miho Iwai, Kaori Yoriki, Kohei Aoyama, Yosuke Tarumi, Hisashi Kataoka, Tetsuya Kokabu, Toshiaki Numajiri, Taisuke Mori
    • Journal Title

      Gynecologic Oncology Reports

      Volume: 46 Pages: 101161-101161

    • DOI

      10.1016/j.gore.2023.101161

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Successful nedaplatin desensitization therapy in a patient with platinum-sensitive recurrent ovarian cancer: A case report and literature review2022

    • Author(s)
      Kokabu T, Aoyama K, Tarumi Y, Kataoka H, Yoriki K, Mori T.
    • Journal Title

      Gynecol Oncol Rep.

      Volume: 43 Pages: 101065-101065

    • DOI

      10.1016/j.gore.2022.101065

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Progesterone Receptor Status of Epithelial Cells as a Predictive Marker for Postoperative Recurrence of Endometriosis2022

    • Author(s)
      Tarumi Y, Mori T, Shimura K, Izumi Y, Okimura H, Kataoka H, Kokabu T, Ito F, Koshiba A, Khan KN, Kusuki I, Kitawaki J.
    • Journal Title

      J Clin Endocrinol Metab.

      Volume: 107 Issue: 6 Pages: 1552-1559

    • DOI

      10.1210/clinem/dgac118

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Genistein induces long-term expression of progesterone receptor regardless of estrogen receptor status and improves the prognosis of endometrial cancer patients2022

    • Author(s)
      Yoriki K, Mori T, Aoyama K, Tarumi Y, Kataoka H, Kokabu T, Kitawaki J.
    • Journal Title

      Sci Rep

      Volume: 12 Issue: 1 Pages: 10303-10303

    • DOI

      10.1038/s41598-022-13842-6

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Giant retroperitoneal dedifferentiated liposarcoma mimicking ovarian cancer: A case report2022

    • Author(s)
      Akihiro Tani, Yosuke Tarumi, Akiyo Kakibuchi, Kohei Aoyama, Tetsuya Kokabu, Hisashi Kataoka, Kaori Yoriki, Michiko Nagamine, Taisuke Mori
    • Journal Title

      Gynecologic Oncology Reports

      Volume: 44 Pages: 101088-101088

    • DOI

      10.1016/j.gore.2022.101088

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Robot-assisted laparoscopic hysterectomy for early-stage endometrial cancer with massive uterine leiomyomas: A case report2022

    • Author(s)
      Kakibuchi A, Ito F, Kokabu T, Okimura H, Takaoka O, Mori T.
    • Journal Title

      Int J Surg Case Rep

      Volume: 97 Pages: 107473-107473

    • DOI

      10.1016/j.ijscr.2022.107473

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 3D-Image-Guided Multi-Catheter Interstitial Brachytherapy for Bulky and High-Risk Stage IIB-IVB Cervical Cancer2022

    • Author(s)
      Kokabu T, Masui K, Tarumi Y, Noguchi N, Aoyama K, Kataoka H, Matsushima H, Yoriki K, Simizu D, Yamazaki H, Yamada K, Mori T
    • Journal Title

      Cancers

      Volume: 14(5) Issue: 5 Pages: 1257-1257

    • DOI

      10.3390/cancers14051257

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Efficacy of interstitial brachytherapy for the patient with locally advanced cervical cancer2023

    • Author(s)
      Tetsuya Kokabu, Koji Masui, Kohei Aoyama, Yosuke Tarumi, Hisashi, Kataoka, Kaori Yoriki, Taisuke Mori
    • Organizer
      International Gynecologic Cancer Society
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Efficacy of 3D-image-guided multi-catheter interstitial brachytherapy for recurrent gynecologic cancer2023

    • Author(s)
      Kohei Aoyama, Tetsuya Kokabu, Yosuke Tarumi, Hisashi Kataoka, Kaori Yoriki, Taisuke Mori
    • Organizer
      The 75th Annual Congress of the Japan Society of Obstetrics and Gynecology
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] エストロゲン関連受容体をターゲットとした新たな子宮体癌治療の向けての基盤確立2021

    • Author(s)
      古株哲也、森泰輔、垂水洋輔、片岡恒、寄木香織、北脇城
    • Organizer
      第63回日本婦人科腫瘍学会学術講演会
    • Related Report
      2021 Research-status Report

URL: 

Published: 2021-04-28   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi