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2005 Fiscal Year Final Research Report Summary

Study for expression and function of serpin molecules in cervical cancer.

Research Project

Project/Area Number 16591664
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Obstetrics and gynecology
Research InstitutionYamaguchi University

Principal Investigator

NAWATA Shugo  Yamaguchi University, Hospital, Assistant Professor, 医学部附属病院, 講師 (60294625)

Project Period (FY) 2004 – 2005
Keywordsserpin / squamous cell carcinoma antigen / maspin / cervical cancer / squamous cell carcinoma / tumor marker / biological function / electrophoresis
Research Abstract

Generally, it is well-known that the women patients bearing advanced cervical cancer have poor prognosis inspite of present medical therapies such as operation, radiation and chemotherapy. Therefore, it is important to clarify the unknown molecular mechanism of cervical cancer progression so as to develop a novel therapeutic approach. The aim of this study is to investigate expression and function of squamous cell carcinoma antigen (SCCA) and maspin, which belong to the serine proteinase inhibitor (serpin) family, in cervical squamous cell carcinoma.
1.Novel analytical method using electrophoresis with newly raised polyclonal antibody against SCCA peptide, PabY2,revealed that there are some distinct expression patterns of SCCA between normal and malignant squamous cell epithelium of the uterine cervix.
2.It was found that SCCA stimulates matrix-metalloproteinase-9 production in cervical squamous carcinoma cells and promotes tumor cell invasion, indicating that abundant secreted SCCA might affect the malignant property of cervical cancer cells in autocrine or paracrine mechanisms. This data might be why high serum values of SCCA are related with a poor prognosis of stages Ib-II cervical cancer patients as reported previously.
3.Electrophoretic analysis revealed that maspin, which was first discovered as mammary tumor suppressor serpin, is also down-regulated in cervical squamous cell carcinoma compared with normal squamous cell epithelium.
In conclusion, it was demonstrated that SCCA expression pattern is apparently changed in cervical cancer, and also that maspin is down-regulated in cervical cancer. Further investigation of the biological functions of these functional serpin proteins might lead the novel insights into molecular mechanism of tumor progression of cervical squamous cell carcinoma.

  • Research Products

    (6 results)

All 2005 2004

All Journal Article (6 results)

  • [Journal Article] Tumor-associated serpin, squamous cell carcinoma antigen stimulates mnatrix metaliloproteinase-9 production in cervical squamous cell carcinoma cell lines.2005

    • Author(s)
      Sueoka K, Nawata S, Sugino N, etal.
    • Journal Title

      Int J Oncol 27・5

      Pages: 1345-53

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Promotor analyses of SCC antigens.2005

    • Author(s)
      Suminami Y, Nawata S, Kato H, et al.
    • Journal Title

      Biochim Biophys Acta 1727

      Pages: 208-12

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Tumor-associated serpin, squamous cell carcinoma antigen stimulates matrix metalloproteinase-9 production in cervical carcinoma cell lines.2005

    • Author(s)
      Sueoka K, Nawata S, Sugino N, et al.
    • Journal Title

      Int J Oncol 27.5

      Pages: 1345-1353

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Promoter analyses of SCO antigens.2005

    • Author(s)
      Suminami Y, Nawata S, Kato H, et al.
    • Journal Title

      Biochim Biophys Acta 1727

      Pages: 208-212

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Characterization of monoclonal antibodies directed against squamous cell carcinoma antigens; report of the TD-10 Workshop.2004

    • Author(s)
      Nustad K, Nawata S, de Bruijn HW, et al.
    • Journal Title

      Tumor Biol 25

      Pages: 69-90

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Characterization of monoclonal antibodies directed against squamous cell carcinoma antigens ; report of the TD-10 Work shop.2004

    • Author(s)
      Nustad K, Nawata S, de Bruijn, et al.
    • Journal Title

      Tumor Biol 25

      Pages: 69-90

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2007-12-13  

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