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The expression control and biofunctional analysis of RCAS1

Research Project

Project/Area Number 14571568
Research Category

Grant-in-Aid for Scientific Research (C)

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

Principal Investigator

SONODA Kenzo  Kyushu University, Faculty of Medicine, Assistant Professor, 大学病院, 助手 (30294929)

Co-Investigator(Kenkyū-buntansha) MIYAMOTO Shingo  Kyushu University, Faculty of Medicine, Lecturer, 大学病院, 講師 (40209945)
Project Period (FY) 2002 – 2003
Project Status Completed (Fiscal Year 2003)
Budget Amount *help
¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 2003: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 2002: ¥2,500,000 (Direct Cost: ¥2,500,000)
KeywordsGynecologic oncology / Invasion / Metastasis / Anoptosis / Tumor stroma / Lymphocyte / Fibroblast / Molecular biology / 腫瘍間質
Research Abstract

(1) RCAS1 expression in uterine endometrial cancer : Immunohistochemical analysis, using 147 patients' samples, showed that overexpression of RCAS1 was significantly correlated with age at surgery, stage, extent of myornetrial invasion, and positive peritoneal cytologic results. Multivariate analysis revealed that RCAS1 expression and metastasis were clinically significant prognostic factors for overall survival. These findings indicated that analysis for RCAS1 expression can provide crucial information about the clinical behavior of uterine endometrial cancer, which may be valuable for management of patients with this disease.
(2) RCAS1 induces microenvironmental change in uterine cancer : (1)RCAS1 associated with tumor size. (2)RCAS1 related with the number of lymphocyte apoptosis in metastatic lymph nodes, (3)RCAS1 expression induced reduction of vimentin positive tumor stromal cells, (4)RCAS1 was correlated with tumor VEOF expression and stromal microvessel density. Accumulating these data, RCAS1 might play a pivotal role in tumor invasion and metastasis. (5)Serum RCAS1 level was measured by ELISA analysis. RCAS1 level was significantly higher in uterine cancer patients than in healthy donors. RCAS1 level changed in response to clinical inanifestation increased in recurrence, and decreased after effective treatments. Moreover, serum RCAS1 induced apoptosis of putative receptor-expressing K562 cells in vitro. These data indicated that RCAS1 might be a novel biomarker in management of uterine cancer patients.
(3) Several basic studies are now under investigation : (1)The analysis of phenotype and signal transduction mechanism of RCAS1, by using truncation mutant transfected cells, and (2)Isolation of protease which induces proteolytic processing of RCAS1.

Report

(3 results)
  • 2003 Annual Research Report   Final Research Report Summary
  • 2002 Annual Research Report
  • Research Products

    (11 results)

All Other

All Publications (11 results)

  • [Publications] Fujita T, Sonoda K, et al.: "Expression of lysophosphatidic acid receptors and vascular endotheial groeth factor mediating lysophosphatidic acid in the development of human ovarian cancer"Cancer Letters. 192. 161-169 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Sonoda K, et al.: "Association between RCAS1 expression and clinical outcome in uterine endomethal cancer"British Journal of Cancer. 89. 546-551 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Fujita T, Sonoda K, et al.: "Expression of lysophosphatidic acid receptors and vascular endothelial growth factor mediating lysophosphatidic acid in the development of human ovarian cancer"Cancer Letters. 192. 161-169 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Sonoda K et al.: "Association between RCAS1 expression and clinical outcome in uterine endometrial cancer"British Journal of Cancer. 89. 546-551 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Fujita T, Sonoda K, et al.: "Expression of lysophosphatidic acid receptors and vascular endothelial growth factor mediating lysophosphatidic acid in the development of hum"Cancer Letters. 192. 161-169 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Sonoada K, et al.: "Association between RCAS1 expression and clinical outcome in uterine endometrial cancer"British Journal of Cancer. 89. 546-551 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Ohishi Y, Miyamoto S, et al.: "ATP-binding cassette superfamily transporter gene expression in human primary ovarian cancer"Clinical Cancer Research. 8. 3767-3775 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Miyamoto S, et al.: "Direct transmembrane clustering and cytoplasmic dimerization of focal adhesion kinase initiates its tyrosine phosphorylation"Biochemica et Biophysica Acta. 1592. 141-152 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 宮本 新吾: "インテグリンシグナル伝達機構-インテグリンを標的とした分子治療-"分子細胞治療. 1. 59-65 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Fujita T, Miyamoto S, Sonoda K, et al.: "Expression of lysophosphatidic acid receptors and vascular endothelial growth factor mediating lysophosphatidic acid in the development of human ovarian cancer"Cancer Letters. (in press). (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Fukushima K, Miyamoto S, et al.: "Tumor necrosis factior-α induced apoptosis and integrin switching in human extravillous trophoblast cell line"Biology of Reproduction. (in press). (2002)

    • Related Report
      2002 Annual Research Report

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Published: 2002-04-01   Modified: 2016-04-21  

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