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Strategies for ovarian cancer prevention: Evaluation of the impact of exposure of environmental carcinogenic substances to the ovary

Research Project

Project/Area Number 20K09673
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 56040:Obstetrics and gynecology-related
Research InstitutionKumamoto University

Principal Investigator

Katabuchi Hidetaka  熊本大学, 大学院生命科学研究部(医), 名誉教授 (90224451)

Co-Investigator(Kenkyū-buntansha) 本原 剛志  熊本大学, 病院, 講師 (10457591)
田代 浩徳  熊本大学, 大学院生命科学研究部(保), 教授 (70304996)
Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2022: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords卵巣癌 / 環境物質 / アスベスト / タルク / 発癌
Outline of Research at the Start

卵巣癌の発癌機構において、アスベストならびにタルクを代表とする環境物質が、どのような機序で発癌に関わっているのかを明らかにすることを目的としている。さらに、その発癌機序の一端が明らかになった際には、卵管を介した女性特有の外界との連絡がある腹腔内環境を閉鎖腔へ導くことによる外科的予防に関する検討も行う予定である。これらの環境物質と卵巣癌の発癌に関する既報は疫学調査が主であり、今回計画する培養細胞、実験動物、そして臨床検体を用いた網羅的な分子生物学的解析はこれまでに報告されていない。卵巣癌の今後の予後改善のためには、卵巣癌の発症を予防するといった観点からその対策を講じる必要があると考えている。

Outline of Final Research Achievements

In this study, we aimed to elucidate the mechanisms by which environmental substances, such as asbestos and talc, are involved in ovarian cancer carcinogenesis through comprehensive analysis of cellular, animal, and clinical specimens.
We found that exposure to asbestos or talc enhanced the production of reactive oxygen species (ROS) in human ovarian surface epithelial cells. Furthermore, we analyzed DNA double-strand breaks, which are known to be one of the DNA disorders induced by oxidative stress, especially related to de novo carcinogenesis, and demonstrated that asbestos and talc exposure induce DNA double-strand breaks in human ovarian surface epithelial cells.

Academic Significance and Societal Importance of the Research Achievements

今回の一連の研究結果から、卵巣癌の発症の予防という観点において、アスベストやタルクに代表される環境物質が卵巣癌の発生に密接に関与していることが明らかにされた。すなわち、環境物質が腹腔内に到達する経路を遮断するといった観点からも、卵管切除術が有意義である可能性があり、今後の検証をすすめていきたい。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (7 results)

All 2023 2022 2021

All Journal Article (7 results) (of which Peer Reviewed: 7 results,  Open Access: 4 results)

  • [Journal Article] Advantages and limitations of estrogen replacement therapy on hypogonadal survivors of childhood cancer2023

    • Author(s)
      Nakamura Miwa、Ohba Takashi、Sasaki Rumi、Saito Fumitaka、Yamaguchi Munekage、Motohara Takeshi、Mabe Hiroyo、Lu Xi、Katabuchi Hidetaka、Kondoh Eiji
    • Journal Title

      International Journal of Clinical Oncology

      Volume: 28 Issue: 11 Pages: 1563-1572

    • DOI

      10.1007/s10147-023-02405-y

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Surgical efficacy and quality of wide resection of the pelvic peritoneum in patients with epithelial ovarian cancer2023

    • Author(s)
      Nishimura Akiho、Motohara Takeshi、Morinaga Jun、Iwagoi Yutaka、Yamamoto Mayuko、Yamaguchi Munekage、Miyahara Yo、Tashiro Hironori、Katabuchi Hidetaka
    • Journal Title

      Surgical Oncology

      Volume: 48 Pages: 101946-101946

    • DOI

      10.1016/j.suronc.2023.101946

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Current status of hereditary breast and ovarian cancer practice among gynecologic oncologists in Japan: a nationwide survey by the Japan Society of Gynecologic Oncology (JSGO)2022

    • Author(s)
      Kobayashi Y, Masuda K, Hiraswa A, Takehara K, Tsuda H, Watanabe Y, Oda K, Nagase S, Mandai M, Okamoto A, Yaegashi N, Mikami M, Enomoto T, Aoki D, Katabuchi H; Working Group on Clinical Practice for Cancer Genomic Medicine and HBOC, Japan Society of Gynecologic Oncology.
    • Journal Title

      J Gynecol Oncol.

      Volume: 33 Issue: 5

    • DOI

      10.3802/jgo.2022.33.e61

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Fertility-sparing surgery for early-stage cervical cancer: A case series study on the efficacy and feasibility of cervical conization followed by pelvic lymphadenectomy2022

    • Author(s)
      Yamamoto M, Motohara T, Iwagoi Y, Tayama S, Tashiro H, Kondoh E, Katabuchi H.
    • Journal Title

      J Obstet Gynaecol Res .

      Volume: Ahead of print Issue: 6 Pages: 1444-1450

    • DOI

      10.1111/jog.15215

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Angiopoietin-like protein 2 decreases peritoneal metastasis of ovarian cancer cells by suppressing anoikis resistance.2021

    • Author(s)
      Takeshita Y, Motohara T, Kadomatsu T, Doi T, Obayashi K, Oike Y, Katabuchi H, Endo M.
    • Journal Title

      Biochem Bioph Res Commun

      Volume: 561 Pages: 26-32

    • DOI

      10.1016/j.bbrc.2021.05.008

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] The hallmarks of ovarian cancer stem cells and niches: Exploring their harmonious interplay in therapy resistance2021

    • Author(s)
      Motohara T, Yoshida GJ, Katabuchi H.
    • Journal Title

      Semin Cancer Biol

      Volume: in press Pages: 182-193

    • DOI

      10.1016/j.semcancer.2021.03.038

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Omental metastasis as a predictive risk factor for unfavorable prognosis in patients with stage III-IV epithelial ovarian cancer2021

    • Author(s)
      Iwagoi Y, Motohara T, Hwang S, Fujimoto K, Ikeda T, Katabuchi H.
    • Journal Title

      Int J Clin Oncol

      Volume: 26 Issue: 5 Pages: 995-1004

    • DOI

      10.1007/s10147-021-01866-3

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Peer Reviewed / Open Access

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Published: 2020-04-28   Modified: 2025-01-30  

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