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BASIC RESEARCH OF NEW GENE THERAPY FOR PROSTATE CANCER WITH GROWTH FACTOR RECEPTOR

Research Project

Project/Area Number 10671474
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Urology
Research InstitutionHiroshima University

Principal Investigator

MATSUBARA Akio (1999)  HIROSHIMA UNIVERSITY, MEDICAL HOSPITAL UROLOGY, RESEARCH ASSOCIATE, 医学部・附属病院, 助手 (10239064)

中原 満 (1998)  広島大学, 医学部, 助教授 (70155802)

Co-Investigator(Kenkyū-buntansha) MITA Kouji  HIROSHIMA UNIVERSITY, FACULTY OF MEDICINE UROLOGY, RESEARCH ASSOCIATE, 医学部, 助手 (70304425)
松原 昭郎  広島大学, 医学部・附属病院, 助手
Project Period (FY) 1998 – 1999
Project Status Completed (Fiscal Year 1999)
Budget Amount *help
¥2,800,000 (Direct Cost: ¥2,800,000)
Fiscal Year 1999: ¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 1998: ¥1,300,000 (Direct Cost: ¥1,300,000)
KeywordsFGF / PROSTATE CANCER / GENE THERAPY / 成長因子
Research Abstract

We have been investigating the potential roles of fibroblast growth factor receptors (FGFRs) in growth control of prostate tumors. Consequently we have recently found that hormone-dependent prostate tumor cells express FGFR2IIIb which mediates response to stromal-derived growth regulator FGF-7, while they lose the expression of FGFR2IIIb during progression from hormone-dependent to hormone-independent and escape the growth regulation by FGF-7. Instead the hormone-independent prostate tumor cells express FGFR1 and acquire autonomy. The results indicate that both restoration of FGFR2IIIb and deactivation of FGFR1 may result in a treatment of hormone-refractory prostate cancer. Thus, we induced the expression of FGFR2IIIb in hormone-independent rat prostate tumor cells by transfection. As a result, the transfected cells regained communication with stroma and not only showed reduced population growth rates, but also recovered cytokeratin expression and gland-like morphology specific to hormone-dependent tumors. We also transfected hormone-independent rat prostate tumor cells with kinase-defective FGFR1 to deactivate the endogenous FGFR1 by dominant-negative effect. As a result, in vivo growth of the transfected cells was similar to that of FGFR2IIIb-introduced cells.

Report

(3 results)
  • 1999 Annual Research Report   Final Research Report Summary
  • 1998 Annual Research Report
  • Research Products

    (5 results)

All Other

All Publications (5 results)

  • [Publications] Akio Matsubara: "Hormone refractory prostate cancer and fibroblast growth factor receptor"Breast Cancer. 6(4). 320-324 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 松原昭郎: "前立腺癌の遺伝子治療-線維芽細胞成長因子受容体2の発現回復によるラット悪性前立腺腫瘍細胞の増殖抑制-"西日本泌尿器科. 61(5). 418-422 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Akio Matsubara: "Hormone refractory prostate cancer and fibroblast growth factor receptor"Breast Cancer. 6(4). 320-324 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 松原昭郎: "前立腺癌の遺伝子治療-線維芽細胞成長因子受容体2の発現回復によるラット 悪性前立腺腫瘍細胞の増殖抑制-"西日本泌尿器科. 61(5). 418-422 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Akio Matsubara: "Inhibition of growth of maligrant rat prostate tuno a cells by restoratron of fibroblest growth facter recetor 2" Cancer Research. 58. 1509-1514 (1998)

    • Related Report
      1998 Annual Research Report

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Published: 1998-04-01   Modified: 2016-04-21  

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