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Establishment of Method of Detecting Early Prostate Carcinoma by Classification of lsozyme Pattern of Prostate Specific Antigen.

Research Project

Project/Area Number 08671785
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Urology
Research InstitutionHOKKAIDO UNIVERSITY

Principal Investigator

DEMURA Takayoshi  Hokkaido Univ., Medical Hospital., Lecturer, 医学部・附属病院, 講師 (00133827)

Co-Investigator(Kenkyū-buntansha) SHINOHARA Nobuo  Hokkaido Univ., Fac.of Med., Instructor, 医学部, 助手 (90250422)
Project Period (FY) 1996 – 1997
Project Status Completed (Fiscal Year 1997)
Budget Amount *help
¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 1997: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 1996: ¥1,200,000 (Direct Cost: ¥1,200,000)
Keywordsprostate carcinoma / prostate specific antigen / tumor marker / diagnosis / 早期前立腺癌 / PSA
Research Abstract

(1) Diagnosis of prostate carcinoma by free/total PSA index : PSA is circulating in plasma in several forms, the main of which are a complex with alpha1-antichymotrypsin (ACT) and a free PSA enzymogen. We measured free/total PSA indices for 285 patients who had serum PSA levels of 10ng/ml or lower and were diagnosed pathologically. Of 285 patients 228 had no prostate cancer (NC) and 57 had Cap. The sensitivity for free/total PSA index was similar to that for total PSA (78.9% versus 75.4%) , however, the specificity, the positive predictive value and the overall accuracy for free/total PSA index (75.9%, 45.0% and 76.5%, respectively) increased by 15-20% as compared with those for total PSA (56.6%, 30.3% and 60.4%, respectively). Free/total PSA index improved the specificity for PSA without impairing the sensitivity in detecting C_aP among patients with serum PSA levels of 10ng/ml or lower.
(2) Mesurement of ACT-PSA complex : We developed a sensitive enzyme immunoassay for ACT-PSA comlex using two different monoclonal antibodies. Anti/PSA antibody is used for the capture, and anti-ACT antibody is conjugated with horseradish peroxidase and used for detection. We are now examining the specificity of serum ACT-PSA concentrations.

Report

(3 results)
  • 1997 Annual Research Report   Final Research Report Summary
  • 1996 Annual Research Report
  • Research Products

    (24 results)

All Other

All Publications (24 results)

  • [Publications] 出村 孝義: "The Proportion of free to total prostate specific antigen:A method of detecting prostate carcinoma." Cancer. 77・6. 1137-1143 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 出村 孝義: "Ratio of free and total prostate specific antigen : A method of detecting prostate cancer in the cases with PSA levels of 10 NG/ML or lower." Journal of Urology. 155・5. 368A (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 出村 孝義: "Change of serum alpha 1-antichymotrypsin (ACT) -prostate specific antigen (PSA) complex and uncomplexed PSA level with advancing age." Journal of Urology. 155・5. 464A (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 出村 孝義: "臨床病期Cの前立腺癌-根治的手術療法 vs 放射線療法 vs 内分泌療法-" 泌尿器外科. 10・2. 103-108 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 出村 孝義: "腫瘍マーカーの新しい展開、前立腺癌:前立腺癌とPSA." 医学と薬学. 37・4. 801-807 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 出村 孝義: "Neoadjuvant hormonal therapy before radical prostatectomy. -What cases are good candidates?-" British Journal of Urology. 80・suppl.2. 265 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] DEMURA,Takayoshi: "The Proportion of free to total prostate specific antigen : A method of detecting prostate carcinoma." Cancer. 77-6. 1137-1143 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] DEMURA,Takayoshi: "Ratio of free and total prostate specific antigen : A method of detecting prostate cancer in the cases with PSA levels of 10 NG/ML or lower." Journal of Urology. 155-5. 368A (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] DEMURA,Takayoshi: "Change of serum alpha 1-antichymotrypsin (ACT) -prostate specific antigen (PSA) complex and uncomplexed PSA level with advancing age." Journal of Urology. 155-5. 464A (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] DEMURA,Takayoshi: "Clinical stage C prostate cancer. -Radical prostatectomy vs. radiotherapy vs. hormone therapy. -" Japanese Journal of Urology Surgery. 10-2. 103-108 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] DEMURA,Takayoshi: "A new development of tumor marker, prostate cancer : Prostate cancer and PSA." Journal of Medicine and Pharma-ceutical Science. 37-4. 801-807 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] DEMURA,Takayoshi: "Neoadjuvant hormonal therapy begore radical prosta-tectomy. -What cases are good candidates? -" British Journal of Urology. 80-Suppl. 2. 265 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 出村 孝義: "The Proportion of free to total prostate specific antigen : A method of detecting prostate carcinoma." Cancer. 77・6. 1137-1143 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] 出村 孝義: "Retio of free and total prostate specific antigen : A method of detecting prostate cancer in the cases with PSA levels of 10 NG/ML or lower." Journal of Urology. 155・5. 368A- (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] 出村 孝義: "Change of serum alpha 1-antichymotrypsin (ACT)-prostate specific antigen (PSA) complex and uncomplexed PSA level with advancing age." Journal of Urology. 155・5. 464A- (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] 出村 孝義: "臨床病期Cの前立腺癌-根治的手術療法vs放射線療法vs内分泌療法-" 泌尿器外科. 10・2. 103-108 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 出村 孝義: "腫瘍マーカーの新しい展開、前立腺癌:前立腺癌とPSA." 医学と薬学. 37・4. 801-807 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 出村 孝義: "Neoadjuvant hormonal therapy before radical prostatectomy.-What cases are good candidates?-" British Journal of Urology. 80・supp1.2. 265- (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 出村孝義: "臨床病期Cの前立腺癌-根治的手術療法vs.放射線療法vs内分泌療法" 泌尿器外科. 10・2. 103-108 (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] 篠原信雄: "勃起神経温存根治手術の適応と限界" 癌の臨床. 42・11. 1345-1350 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 篠原信雄: "再燃癌に対する集学的治療" 臨床泌尿器科. 50・4. 213-216 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Takayoshi Demura: "The Proportion of free to total prostate specific ontigen : A method of detecting prostate carcinoma." Cancer. 77・6. 1137-1143 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 松田博幸: "初期治療として内分泌療法を行った前立腺癌StageD_2における予後因子の検討" 日本泌尿器科学会雑誌. 87・3. 688-694 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 出村孝義: "前立腺癌とPSA" 医学と薬学. 37・(印刷中). (1997)

    • Related Report
      1996 Annual Research Report

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Published: 1996-04-01   Modified: 2016-04-21  

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