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Updated: Jan 27, 2026

Murine Experimental Model of Original Tumor Development and Peritoneal Metastasis via Orthotopic Inoculation with Ovarian Carcinoma Cells
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Caveolin-1 is down-regulated in human ovarian carcinoma and acts as a candidate tumor suppressor gene

K Wiechen1, L Diatchenko, A Agoulnik

  • 1Institute of Pathology, Charité, Humboldt University Berlin, Berlin, Germany.

The American Journal of Pathology
|November 7, 2001
PubMed

Insights

Caveolin-1 (CAV1) is downregulated in ovarian cancer, acting as a tumor suppressor gene. Restoring CAV1 expression inhibits ovarian cancer cell survival, highlighting its potential as a therapeutic target.

Area of Science:

  • Oncology
  • Molecular Biology
  • Gene Expression Analysis

Background:

  • Ovarian cancer is a leading cause of cancer death in women.
  • Identifying novel biomarkers for early detection and targeted therapy is crucial.
  • Caveolin-1 (CAV1) has been implicated in various cancers, but its role in ovarian cancer requires further elucidation.

Purpose of the Study:

  • To identify novel differentially expressed genes in ovarian cancer compared to normal ovarian tissue.
  • To investigate the role of caveolin-1 (CAV1) as a potential tumor suppressor gene in ovarian cancer.

Main Methods:

  • Microarray analysis of normal ovaries and advanced ovarian carcinomas.
  • Confirmation of CAV1 down-regulation using tumor tissue arrays and immunohistochemistry.
  • Analysis of CAV1 expression and phosphorylation in ovarian cancer cell lines.
  • Investigating the effect of epigenetic modifiers on CAV1 expression.
  • Assessing the impact of CAV1 re-expression on ovarian cancer cell survival in vitro.

Main Results:

  • Caveolin-1 (CAV1) gene expression is significantly down-regulated in ovarian carcinoma samples.
  • Loss of CAV1 expression was observed in serous ovarian carcinomas, with altered localization in low-grade tumors.
  • CAV1 re-expression in ovarian cancer cells suppressed tumor cell survival in vitro.
  • Epigenetic modifications (DNA methylation and histone deacetylation) contribute to CAV1 down-regulation.

Conclusions:

  • Caveolin-1 (CAV1) functions as a tumor suppressor gene in human ovarian epithelium.
  • Down-regulation of CAV1 is a common event in ovarian cancer development.
  • Restoring CAV1 expression may represent a potential therapeutic strategy for ovarian cancer.

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