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Development of novel therapeutic strategies for ovarian cancer by regulating the immunological dynamics of tumor-associated macrophages

Research Project

Project/Area Number 19K09826
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

Motohara Takeshi  熊本大学, 病院, 講師 (10457591)

Co-Investigator(Kenkyū-buntansha) 田代 浩徳  熊本大学, 大学院生命科学研究部(保), 教授 (70304996)
片渕 秀隆  熊本大学, 大学院生命科学研究部(医), 名誉教授 (90224451)
Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords卵巣癌 / 癌幹細胞 / 癌幹細胞ニッチ / マクロファージ / 腫瘍微小環境 / 腫瘍
Outline of Research at the Start

難治性である卵巣癌の克服のためには、腹腔内播種病巣の腫瘍微小環境における抗癌剤治療抵抗性に関わる分子レベルでの病態の解明が必要不可欠であり、特に卵巣癌細胞と腫瘍随伴マクロファージとの細胞間相互作用、シグナル伝達に関わる分子機構を明らかにすることの重要性は論を俟たない。今回われわれは、これまでの解析で明らかにされた卵巣癌細胞とマクロファージとの関連性についての研究をさらに進展させることで、腫瘍微小環境の形成に関わるマクロファージの役割について、特に卵巣癌細胞との細胞間相互作用ならびに抗癌剤治療抵抗性に関与する分子メカニズムを解明する。

Outline of Final Research Achievements

In this study, we performed a comprehensive basic analysis to elucidate the cell-cell interaction between ovarian cancer cells and TAMs and the molecular biological roles of CSF-1R and its ligand, CSF-1, in regulating TAM function.
We found that CSF-1 is expressed in ovarian cancer cells, while CSF-1R is expressed in TAMs. In addition, therapeutic experiments using CSF-1R inhibitors experimentally demonstrated that suppression of TAM function exerts an antitumor effect. These results suggest that suppression of these CSF-1/CSF-1R signaling pathways may be a promising new therapeutic strategy for ovarian cancer.

Academic Significance and Societal Importance of the Research Achievements

われわれの研究グループがこれまでに継続して行ってきたマクロファージの生物学的機能ならびに卵巣癌細胞の抗癌剤抵抗性に関する研究をさらに進展させ、特に腫瘍微小環境におけるTAMの機能的役割を明らかにすることは、卵巣癌の治療抵抗性の分子メカニズムの包括的な理解、そして卵巣癌患者の治療成績の向上に繋がることが期待される。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (13 results)

All 2022 2021 2020 2019

All Journal Article (10 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 10 results,  Open Access: 7 results) Presentation (3 results) (of which Invited: 3 results)

  • [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
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Maternal thrombocytopenia precedes fetal death associated with COVID-192022

    • Author(s)
      Sagara A, Yamaguchi M, Mikami Y, Motohara T, Ohba T, Kondoh E.
    • Journal Title

      J Obstet Gynaecol Res.

      Volume: Ahead of print. Issue: 6 Pages: 1475-1479

    • DOI

      10.1111/jog.15223

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Changes in HPV16/18 Prevalence among Unvaccinated Women with Cervical Intraepithelial Neoplasia in Japan: Assessment of Herd Effects following the HPV Vaccination Program.2022

    • Author(s)
      Onuki M, Matsumoto K, et al. for The Mint Study Group.
    • Journal Title

      Vaccines (Basel)

      Volume: 10 Issue: 2 Pages: 181-181

    • DOI

      10.3390/vaccines10020188

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Human papillomavirus vaccine effectiveness by age at first vaccination among Japanese women.2022

    • Author(s)
      Onuki M, Matsumoto K, et al. for The MINT Study Group.
    • Journal Title

      Cancer Science

      Volume: 113 Issue: 4 Pages: 1428-1434

    • DOI

      10.1111/cas.15270

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [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] Adipocyte-like signature in ovarian cancer minimal residual disease identifies metabolic vulnerabilities of tumor-initiating cells2021

    • Author(s)
      Artibani M, Masuda K, Hu Z, Rauher PC, Mallett G, Wietek N, Morotti M, Chong K, KaramiNejadRanjbar M, Zois CE, Dhar S, El-Sahhar S, Campo L, Blagden SP, Damato S, Pathiraja PN, Nicum S, Gleeson F, Laios A, Alsaadi A, Santana Gonzalez L, Motohara T, et al.
    • Journal Title

      JCI Insight.

      Volume: 6

    • DOI

      10.1172/jci.insight.147929

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [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 2020 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
  • [Journal Article] Human papillomavirus genotype contribution to cervical cancer and precancer: Implications for screening and vaccination in Japan2020

    • Author(s)
      Onuki M, Matsumoto K, Iwata T, Yamamoto K, Aoki Y, Maenohara S, Tsuda N, Kamiura S, Takehara K, Horie K, Tasaka N, Yahata H, Takei Y, Aoki Y, Kato H, Motohara T, Nakamura K, Ishikawa M, Kato T, Yoshida H, Matsumura N, Nakai H, Shigeta S, Takahashi F, Noda K, Yaegashi N, Yoshikawa H.
    • Journal Title

      Cancer Sci

      Volume: 117 Issue: 7 Pages: 2546-2557

    • DOI

      10.1111/cas.14445

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Ovarian cancer stemness: biological and clinical implications for metastasis and chemotherapy resistance2019

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

      Cancers

      Volume: 11 Issue: 7 Pages: 907-907

    • DOI

      10.3390/cancers11070907

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] 卵巣癌の初回治療における薬剤選択: PARP阻害剤を吟味する.2022

    • Author(s)
      本原 剛志
    • Organizer
      ゼジューラWEB講演会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 令和時代における卵巣癌治療のベストプラクティス.2022

    • Author(s)
      本原 剛志
    • Organizer
      Ovarian Cancer Forum in Miyazaki
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 卵巣癌の治療抵抗性ならびに転移における 癌幹細胞とニッチの役割2021

    • Author(s)
      本原 剛志
    • Organizer
      第53回 日本臨床分子形態学会総会・学術集会 シンポジウム
    • Related Report
      2021 Research-status Report
    • Invited

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Published: 2019-04-18   Modified: 2024-01-30  

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