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Analysis of the molecular mechanism of PSMA in prostate cancer cells

Research Project

Project/Area Number 18K09137
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 56030:Urology-related
Research InstitutionEhime University

Principal Investigator

Miura Noriyoshi  愛媛大学, 医学部附属病院, 講師 (80554427)

Co-Investigator(Kenkyū-buntansha) 雑賀 隆史  愛媛大学, 医学系研究科, 教授 (10314676)
東山 繁樹  愛媛大学, プロテオサイエンスセンター, 教授 (60202272)
菊川 忠彦  愛媛大学, 医学系研究科, 准教授 (70444734)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
KeywordsPSMA / tumor endothelial cells / HUVECs / LNCaP / tube formation / prostate cancer specimen / 前立腺癌 / CUL3 / Cullin3型ユビキチンリガーゼ
Outline of Final Research Achievements

We conclude that PSMA-positive membranes released from PSMA-expressing prostate cancer cells transform PSMA-negative endothelial cells into PSMA-positive endothelial cells. PSMA-endothelial cells acquire high angiogenic activity. PSMA-expressing epithelial prostate cancer cells in human prostate tumors may contribute to tumor angiogenesis through the transformation of PSMA-negative endothelial cells into PSMA-positive tumor endothelial cells in human prostate cancer tissues.

Academic Significance and Societal Importance of the Research Achievements

PSMAが前立腺癌の増殖に寄与する機能的分子メカニズム、および癌微小環境形成・腫瘍血管新生におけるその役割は不明な点が多い。今回の研究では、前立腺癌がPSMAを介して、周囲の既存血管に作用して、自身の組織へと血管を引き込むことで、癌細胞自身の生存維持のみならず、高い増殖能や転移能を獲得していく可能性が示唆された。さらに詳細に解析を進めることで、将来前立腺癌腫瘍血管特異的に標的とする血管新生阻害剤の開発に繋がると考えている。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (5 results)

All 2020 2019

All Journal Article (1 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (4 results)

  • [Journal Article] SPOP is essential for DNA-protein crosslink repair in prostate cancer cells: SPOP-dependent removal of topoisomerase 2A from the topoisomerase 2A-DNA cleavage complex.2020

    • Author(s)
      Watanabe R, Maekawa M, Hieda M, Taguchi T, Miura N, Kikugawa T, Saika T, Higashiyama S.
    • Journal Title

      Mol Biol Cell

      Volume: 31 Issue: 6 Pages: 478-490

    • DOI

      10.1091/mbc.e19-08-0456

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] A novel function of a prostate cancer-associated SPOP mutant in topoisomerase 2A-dependent DNA-protein crosslink repair2020

    • Author(s)
      Masashi Maekawaa, Ryuta Watanabeb, Miki Hieda, Tomohiko Taguchi, Noriyoshi Miura, Tadahiko Kikugawa, Takashi Saika and Shigeki Higashiyama
    • Organizer
      第79回 日本癌学会 学術総会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 前立腺癌細胞株LNCaP cellsから放出されるPSMA陽性microvesicleが及ぼす血管内皮細胞の質的変化2019

    • Author(s)
      渡辺隆太 、前川大志、三浦徳宣、菊川忠彦、 雑賀隆史、東山繁樹
    • Organizer
      第28回 泌尿器科分子・細胞研究会
    • Related Report
      2019 Research-status Report
  • [Presentation] 前立腺癌細胞株LNCaP cellsから放出されるPSMA陽性microvesicleが及ぼす血管内皮細胞の質的変化2019

    • Author(s)
      渡辺隆太 、前川大志、三浦徳宣、菊川忠彦、 雑賀隆史、東山繁樹
    • Organizer
      第60回 日本生化学会 中国四国支部例会
    • Related Report
      2019 Research-status Report
  • [Presentation] LNCaP cellから放出されるPSMA陽性microvesicleが及ぼす血管内皮細胞の質的変化2019

    • Author(s)
      渡辺隆太 前川大志 三浦徳宣 菊川忠彦 東山繁樹 雑賀隆史
    • Organizer
      第28回 泌尿器科分子細胞研究会
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2022-01-27  

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