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乳癌における前立腺特異抗原(PSA)の研究

Research Project

Project/Area Number 12770657
Research Category

Grant-in-Aid for Encouragement of Young Scientists (A)

Allocation TypeSingle-year Grants
Research Field General surgery
Research InstitutionWakayama Medical University

Principal Investigator

梅村 定司  和歌山県立医科大学, 医学部, 助手 (90295824)

Project Period (FY) 2000 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2001: ¥700,000 (Direct Cost: ¥700,000)
Keywords前立腺特異抗原遺伝子 / 乳癌 / プロモーター領域 / 遺伝子多型 / PCR-SSCP
Research Abstract

乳癌101例の原発部腫瘍組織と血液白血球DNAを用い、以下の解析を行なった。原発病巣は通常の病理組織学的検索にて癌の存在を確認した。
1.前立腺特異抗体(PSA)遺伝子プロモーター領域のandrogen response element 2に関してPCR-S SCP解析を行なった。
2.銀染色により異常バンドを同定した。
3.目的のバンドよりDNAを抽出し、シークエンス解析を行なった。
4.Nsp IとSfc Iを用いたenzyme analysis法により、遺伝子多型サイトの遺伝子型を決定した。
5.RNA抽出を行いRT-PCR法によりPSAmRNAの発現を決定した。
以上の結果、RT-PCRにより40%でPSAmRNAの発現が見られた。またコドン-252(G/A)と-205(A/AA)の遺伝子多型を認めた。これらは、-252Aは-205AAと-252Gは-205Aとリンクしていた。Genotypeの分布は、G/A-A/AA54.7%、A/A-AA/AA7.5%、G/G-A/A37.8%であった。A/AA型では、原発腫瘍が小さく、分化度高くp53陰性例が多く、増殖分画が低く予後良好の乳癌である可能性を認めた。

Report

(2 results)
  • 2001 Annual Research Report
  • 2000 Annual Research Report
  • Research Products

    (10 results)

All Other

All Publications (10 results)

  • [Publications] Yang Q, Umemura T, et al.: "Expression of Bcl-2 but not Bax or p53 correlates with in vitro resistance to a series of anticancer drugs in breast carcinoma"Breast Cancer Res and Treatment. 61. 211-216 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] Yang Q, Umemura T, et al.: "Novel polymorphisms of prostate-specific antigen (PSA) gene associated with PSA mRNA expression in breast cancer"Journal of Human Genetics. 45(6). 363-366 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] Yang Q, Umemura T, et al.: "Thymidine phosphorylase expression correlates with tumor differentiation and Bcl-2 in invasive breast cancer"Breast Cancer. 7. 210-214 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] Yang Q, Sakurai T, et al.: "Overexpression of p27 protein in human breast cancer correlates with in vitro resistance to doxorubicin and mitomycin"Anticancer Res. 20. 4319-4322 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] Yang Q, Mori I, et al.: "Biallelic inactivation of retinoic acid receptor β2 gene by epigenetic change in breast cancer"Am J Pathol. 158(1). 299-303 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Yang Q, Sakurai T, et al.: "Hypermethylation does not account for the frequent loss of the retinoic receptor beta 2 in breast carcinoma"Anticancer Res. 21(3B). 1829-1833 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Yang Q,Umemura T et al: "Expression of Bcl-2, but not Bax, correlates with estrogen receptor status and"Pathol Int. 49. 775-780 (1999)

    • Related Report
      2000 Annual Research Report
  • [Publications] Yang Q,Umemura T et al: "Expression of Bcl-2 but not Bax or p53 correlates with in vitro"Breast Cancer Res and Treatment. 61. 211-216 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Yang Q,Umemura T, et al: "Novel polymorphisms of prostate-specific antigen (PSA) gene associated with"Journal of Human Genetics. 45(6). 363-366 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Yang Q,Umemura T, et al: "Thymidine phosphorylase expression correlates with tumor differentiation and"Breast Cancer. 7. 210-214 (2000)

    • Related Report
      2000 Annual Research Report

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Published: 2001-04-01   Modified: 2016-04-21  

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