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Mechanisms for development of castration resistance by fluctuation of the differentiation in human prostate cancer cells

Research Project

Project/Area Number 16K11000
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Urology
Research InstitutionMie University

Principal Investigator

Ishii Kenichiro  三重大学, 医学系研究科, 助教 (90397513)

Co-Investigator(Kenkyū-buntansha) 白石 泰三  三重大学, 医学系研究科, 客員教授 (30162762)
広川 佳史  三重大学, 医学系研究科, 講師 (30322738)
杉村 芳樹  三重大学, 医学系研究科, リサーチアソシエイト (90179151)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords去勢抵抗性前立腺癌 / ホルモン療法 / 癌細胞分化 / 線維芽細胞の多様性 / 前立腺癌患者由来線維芽細胞 / in vitro共培養実験 / 癌抑制遺伝子 / 癌遺伝子 / 前立腺癌 / アンドロゲン感受性 / 線維芽細胞 / EGF / AR-V7 / 癌細胞内シグナル伝達経路 / 癌細胞分化の揺らぎ / 細胞分化の揺らぎ / 間質リモデリング / エピジェネティック異常
Outline of Final Research Achievements

In the tumor microenvironment, heterogeneous stromal component of prostate cancer (PCa) tissue contains multiple populations of fibroblasts that are associated with tumorigenesis. Fibroblasts secret a number of growth factors, cytokines, ECM proteins, and miRNAs that stimulate progression of PCa cells. In this study, we investigated the effects of fibroblasts on androgen-sensitive human PCa cell line LNCaP focusing on the expression of cancer-related genes. As for tumor suppressor genes, mRNA expression of NKX3-1 in LNCaP cells was decreased by co-culturing with fibroblasts. As for oncogenes, mRNA expressions of NFKB1 and SRC in LNCaP cells was increased by co-culturing with fibroblasts. Our data showed that mRNA expressions of cancer-related genes in LNCaP cells were highly disturbed by co-culturing with fibroblasts. The use of PCa patients-derived fibroblasts may allow us to investigate the characteristics of aggressive fibroblasts in the development of castration-resistant PCa.

Academic Significance and Societal Importance of the Research Achievements

進行性前立腺癌に対するホルモン療法は約4割の患者にしか効果がなく、残りの6割は初めからホルモン療法に反応しないか、最初は効果が認められるものの徐々に効果が減弱し、最終的に去勢抵抗性前立腺癌へと進展することが大きな課題である。我々は前立腺癌の去勢抵抗性獲得には癌細胞周囲に存在する線維芽細胞からのパラクライン的な刺激が重要な役割を担うと考えている。今回の結果は、進行性前立腺癌に対する治療としてホルモン療法だけでは不十分であり、癌微小環境を構成するactiveな線維芽細胞の増殖や機能を阻害することが去勢抵抗性前立腺癌への進展を抑制する有用な治療法となる可能性を示唆するものである。

Report

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

    (34 results)

All 2019 2018 2017 2016

All Journal Article (10 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 10 results,  Open Access: 2 results,  Acknowledgement Compliant: 2 results) Presentation (24 results) (of which Int'l Joint Research: 1 results,  Invited: 2 results)

  • [Journal Article] Antifibrotic Agent Pirfenidone Suppresses Proliferation of Human Pancreatic Cancer Cells by Inducing G0/G1 Cell Cycle Arrest2019

    • Author(s)
      Usugi Eri、Ishii Kenichiro、Hirokawa Yoshifumi、Kanayama Kazuki、Matsuda Chise、Uchida Katsunori、Shiraishi Taizo、Watanabe Masatoshi
    • Journal Title

      Pharmacology

      Volume: 103 Issue: 5-6 Pages: 250-256

    • DOI

      10.1159/000496831

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Pirfenidone, an Anti-Fibrotic Drug, Suppresses the Growth of Human Prostate Cancer Cells by Inducing G1 Cell Cycle Arrest2019

    • Author(s)
      Ishii Kenichiro、Sasaki Takeshi、Iguchi Kazuhiro、Kato Manabu、Kanda Hideki、Hirokawa Yoshifumi、Arima Kiminobu、Watanabe Masatoshi、Sugimura Yoshiki
    • Journal Title

      Journal of Clinical Medicine

      Volume: 8 Issue: 1 Pages: 44-44

    • DOI

      10.3390/jcm8010044

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Tyrosine kinase inhibitor therapy prescribed for non-urologic diseases can modify PSA titers in urology patients2018

    • Author(s)
      Sasaki Takeshi、Franco Omar E.、Ohishi Kohshi、Filipovich Yana、Ishii Kenichiro、Crawford Susan E.、Takahashi Naoto、Katayama Naoyuki、Sugimura Yoshiki、Hayward Simon W.
    • Journal Title

      The Prostate

      Volume: 79 Issue: 3 Pages: 259-264

    • DOI

      10.1002/pros.23730

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Predicting the tumorigenic phenotype of human bladder cancer cells by combining with fetal rat mesenchyme2018

    • Author(s)
      Miki Manabu、Ishii Kenichiro、Sasaki Takeshi、Kato Manabu、Kajiwara Shinya、Kanda Hideki、Arima Kiminobu、Hirokawa Yoshifumi、Watanabe Masatoshi、Sugimura Yoshiki
    • Journal Title

      Urologic Oncology: Seminars and Original Investigations

      Volume: 36 Issue: 10 Pages: 472-472

    • DOI

      10.1016/j.urolonc.2018.07.008

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Interleukin-6 induces VEGF secretion from prostate cancer cells in a manner independent of androgen receptor activation2018

    • Author(s)
      Ishii Kenichiro、Sasaki Takeshi、Iguchi Kazuhiro、Kajiwara Shinya、Kato Manabu、Kanda Hideki、Hirokawa Yoshifumi、Arima Kiminobu、Mizokami Atsushi、Sugimura Yoshiki
    • Journal Title

      The Prostate

      Volume: 78 Issue: 11 Pages: 849-856

    • DOI

      10.1002/pros.23643

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Role of Stromal Paracrine Signals in Proliferative Diseases of the Aging Human Prostate2018

    • Author(s)
      Kenichiro Ishii , Sanai Takahashi, Yoshiki Sugimura, Masatoshi Watanabe
    • Journal Title

      Journal of Clinical Medicine

      Volume: 6 Issue: 4 Pages: 68-89

    • DOI

      10.3390/jcm7040068

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Additive naftopidil treatment synergizes docetaxel-induced apoptosis in human prostate cancer cells.2018

    • Author(s)
      Ishii K, Matsuoka I, Kajiwara S, Sasaki T, Miki M, Kato M, Kanda H, Arima K, Shiraishi T, Sugimura Y.
    • Journal Title

      Journal of Cancer Research and Clinical Oncology

      Volume: 144 Issue: 1 Pages: 89-98

    • DOI

      10.1007/s00432-017-2536-x

    • Related Report
      2018 Annual Research Report 2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Role of stromal paracrine signals in proliferative diseases of the aging human prostate.2018

    • Author(s)
      Ishii K, Takahashi S, Sugimura Y, Watanabe M.
    • Journal Title

      Journal of Clinical Medicine

      Volume: 7 Pages: 68-88

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Combination treatment with naftopidil increases the efficacy of radiotherapy in PC-3 human prostate cancer cells2017

    • Author(s)
      Iwamoto Y, Ishii K, Kanda H, Kato M, Miki M, Kajiwara S, Arima K, Shiraishi T, Sugimura Y
    • Journal Title

      Journal of Cancer Research and Clinical Oncology

      Volume: 印刷中 Issue: 6 Pages: 933-939

    • DOI

      10.1007/s00432-017-2367-9

    • Related Report
      2017 Research-status Report 2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Fibroblasts prolong serum prostate-specific antigen decline after androgen deprivation therapy in prostate cancer2016

    • Author(s)
      Sasaki T, Ishii K, Iwamoto Y, Kato M, Miki M, Kanda H, Arima K, Shiraishi T, Sugimura Y
    • Journal Title

      Laboratory Investigations

      Volume: 96 Issue: 3 Pages: 338-349

    • DOI

      10.1038/labinvest.2015.136

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] Loss of fibroblasts-dependent androgen receptor activation in prostate cancer cells develops castration-resistant prostate cancer2019

    • Author(s)
      Kenichiro Ishii, Izumi Matsuoka, Takeshi Sasaki, Manabu Kato, Kohei Nishikawa, Hideki Kanda, Yoshifumi Hirokawa, Kazuhiro Iguchi, Kiminobu Arima, Masatoshi Watanabe, Yoshiki Sugimura
    • Organizer
      The American Association for Cancer Research (AACR) Annual Meeting 2019
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 前立腺癌間質の多様性は前立腺癌不均一性にどう影響するのか2018

    • Author(s)
      石井健一朗、梶原進也、吉川裕美、佐々木 豪、三木 学、加藤 学、神田英輝、有馬公伸、渡邉昌俊、杉村芳樹
    • Organizer
      第106回 日本泌尿器科学会総会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Fibroblasts preserve androgen receptor signaling in prostate cancer cells under androgen deprivation2018

    • Author(s)
      Kenichiro Ishii, Izumi Matsuoka, Takeshi Sasaki, Shinya Kajiwara, Hideki Kanda, Yoshifumi Hirokawa, Kazuhiro Iguchi, Kiminobu Arima, Masatoshi Watanabe, Yoshiki Sugimura
    • Organizer
      第107回 日本病理学会総会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Pirfenidone, an anti-fibrotic agent, inhibits cell growth of human cancer cells by induction of G1 cell-cycle arrest2018

    • Author(s)
      Kenichiro Ishii, Eri Usugi, Yoshifumi Hirokawa, Kazuki Kanayama, Chise Matsuda, Katsunori Uchida, Yoshiki Sugimura, Mawatoshi Watanabe
    • Organizer
      第107回 日本病理学会総会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 前立腺癌微小環境における細胞間相互作用2018

    • Author(s)
      石井健一朗、杉村芳樹
    • Organizer
      第5回 前立腺生物学シンポジウム
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 前立腺間質リモデリングは前立腺癌の発生にどう関わるのか2018

    • Author(s)
      石井健一朗、梶原進也、佐々木 豪、臼杵恵梨、渡邉昌俊、杉村芳樹
    • Organizer
      第33回 発癌病理研究会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Characterization of human prostate cancer LNCaP sublines differing in androgen-sensitivity: interactions between cancer cells ad fibroblasts2018

    • Author(s)
      Kenichiro Ishii, Shinya Kajiwara, Kazuhiro Iguchi, Manabu Kato, Yoshifumi Hirokawa, Kiminobu Arima, Masatoshi Watanabe, Yoshiki Sugimura
    • Organizer
      第77回 日本癌学会学術総会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 前立腺癌微小環境における細胞間相互作用リガンド非依存的なアンドロゲン受容体活性化機構の多様性から考える前立腺癌治療の課題と展望2017

    • Author(s)
      石井健一朗、佐々木 豪、渡邉昌俊、杉村芳樹
    • Organizer
      第33回 前立腺シンポジウム
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] Aberrant activation of androgen-low-sensitive prostate cancer cells-fibroblasts interactions under androgen deprivation2017

    • Author(s)
      石井健一朗、井口和弘、梶原進也、加藤 学、有馬公伸、白石泰三、杉村芳樹
    • Organizer
      第76回 日本癌学会学術総会
    • Related Report
      2017 Research-status Report
  • [Presentation] Role of epithelial-fibroblasts interactions in initiation of prostate cancer2017

    • Author(s)
      梶原進也、石井健一朗、加藤 学、有馬公伸、杉村芳樹
    • Organizer
      第76回 日本癌学会学術総会
    • Related Report
      2017 Research-status Report
  • [Presentation] Acceleration of tumor cell growth by fetal but not adult rat stromal cells2017

    • Author(s)
      伊東顕二郎、伊東里子、原田直幹、石井健一朗、杉村芳樹、櫻木 求、小田伸行
    • Organizer
      第76回 日本癌学会学術総会
    • Related Report
      2017 Research-status Report
  • [Presentation] 前立腺間質構造の多様性による前立腺癌不均一性の獲得機構2017

    • Author(s)
      石井健一朗、梶原進也、佐々木 豪、三木 学、加藤 学、神田英輝、有馬公伸、杉村芳樹
    • Organizer
      第105回 日本泌尿器科学会総会
    • Related Report
      2017 Research-status Report
  • [Presentation] 前立腺癌進展におけるリガンド非依存的なアンドロゲン受容体活性化分子機構2017

    • Author(s)
      松尾いづみ、石井健一朗、佐々木 豪、三木 学、梶原進也、加藤 学、神田英輝、有馬公伸、杉村芳樹
    • Organizer
      第105回 日本泌尿器科学会総会
    • Related Report
      2017 Research-status Report
  • [Presentation] 前立腺癌微小環境予測における前立腺MRI ADC scoreの有用性2017

    • Author(s)
      加藤 学、石井健一朗、梶原進也、三木 学、神田英輝、有馬公伸、白石泰三、杉村芳樹
    • Organizer
      第105回 日本泌尿器科学会総会
    • Related Report
      2017 Research-status Report
  • [Presentation] 膀胱癌における癌―間質相互作用2017

    • Author(s)
      三木 学、石井健一朗、加藤 学、佐々木 豪、梶原進也、神田英輝、有馬公伸、白石泰三、杉村芳樹
    • Organizer
      第105回 日本泌尿器科学会総会
    • Related Report
      2017 Research-status Report
  • [Presentation] 前立腺癌微小環境における間質性細胞間相互作用の異常活性化2016

    • Author(s)
      石井健一朗、加藤 学、有馬公伸、溝上 敦、白石泰三、杉村芳樹
    • Organizer
      第75回 日本癌学会学術総会
    • Place of Presentation
      パシフィコ横浜(神奈川県・横浜市)
    • Year and Date
      2016-10-06
    • Related Report
      2016 Research-status Report
  • [Presentation] A new insight of cell-cell interactions in tumor stroma of prostate cancer2016

    • Author(s)
      Kenichiro Ishii, Takeshi Sasaki, Manabu Miki, Manabu Kato, Hideki Kanda, Kiminobu Arima, Atsushi Mizokami, Taizo Shiraishi, Yoshiki Sugimura
    • Organizer
      第105回 日本病理学会総会
    • Place of Presentation
      仙台国際センター(宮城県・仙台市)
    • Year and Date
      2016-05-12
    • Related Report
      2016 Research-status Report
  • [Presentation] A new insight of cell-cell interactions in tumor stroma of prostate cancer2016

    • Author(s)
      Kenichiro Ishii, Takeshi Sasaki, Manabu Miki, Manabu Kato, Hideki Kanda, Kiminobu Arima, Taizo Shiraishi, Yoshiki Sugimura
    • Organizer
      111st American Urological Association Annual Meeting
    • Place of Presentation
      San Diego, CA, USA
    • Year and Date
      2016-05-06
    • Related Report
      2016 Research-status Report
  • [Presentation] Fibroblasts prolong serum prostate-specific antigen decline after androgen deprivation therapy in prostate cancer2016

    • Author(s)
      Takeshi Sasaki, Kenichiro Ishii, Manabu Miki, Hideki Kanda, Kiminobu Arima, Taizo Shiraishi, Yoshiki Sugimura
    • Organizer
      111st American Urological Association Annual Meeting
    • Place of Presentation
      San Diego, CA, USA
    • Year and Date
      2016-05-06
    • Related Report
      2016 Research-status Report
  • [Presentation] The exploration of the order in the heterogeneity of prostate cancer-associated stroma environment2016

    • Author(s)
      Manabu Kato, Takeshi Sasaki, Kenichiro Ishii, Manabu Miki, Kohei Nishikawa, Kiminobu Arima, Taizo Shiraishi, Neil Bhowmick, Yoshiki Sugimura
    • Organizer
      111st American Urological Association Annual Meeting
    • Place of Presentation
      San Diego, CA, USA
    • Year and Date
      2016-05-06
    • Related Report
      2016 Research-status Report
  • [Presentation] 前立腺癌関連線維芽細胞の自律的増殖機構2016

    • Author(s)
      石井健一朗、佐々木 豪、三木 学、加藤 学、神田英輝、有馬公伸、溝上 敦、白石泰三、杉村芳樹
    • Organizer
      第104回 日本泌尿器科学会総会
    • Place of Presentation
      仙台国際センター(宮城県・仙台市)
    • Year and Date
      2016-04-23
    • Related Report
      2016 Research-status Report
  • [Presentation] 細胞表面タンパクによる前立腺癌間質細胞の不均一性の検討2016

    • Author(s)
      加藤 学、三木 学、石井健一朗、加藤桃子、梶原進也、吉川昌希、矢﨑順二、吉尾裕子、長谷川嘉弘、神田英輝、金井優博、有馬公伸、杉村芳樹、Neil A Bhowmick
    • Organizer
      第104回 日本泌尿器科学会総会
    • Place of Presentation
      仙台国際センター(宮城県・仙台市)
    • Year and Date
      2016-04-23
    • Related Report
      2016 Research-status Report
  • [Presentation] 前立腺癌骨転移に対するリソホスファチジン酸(LPA)受容体拮抗薬の影響2016

    • Author(s)
      三木 学、神田英輝、石井健一朗、佐々木 豪、加藤 学、有馬公伸、白石泰三、杉村芳樹
    • Organizer
      第104回 日本泌尿器科学会総会
    • Place of Presentation
      仙台国際センター(宮城県・仙台市)
    • Year and Date
      2016-04-23
    • Related Report
      2016 Research-status Report
  • [Presentation] 既存医薬品のオフターゲット効果を活用した去勢抵抗性前立腺癌治療への新規アプローチ2016

    • Author(s)
      松岡いづみ、石井健一朗、佐々木 豪、三木 学、加藤 学、神田英輝、有馬公伸、白石泰三、杉村芳樹
    • Organizer
      第104回 日本泌尿器科学会総会
    • Place of Presentation
      仙台国際センター(宮城県・仙台市)
    • Year and Date
      2016-04-23
    • Related Report
      2016 Research-status Report

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

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