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Heterotypic Three-dimensional In Vitro Modeling of Stromal-Epithelial Interactions During Ovarian Cancer Initiation and Progression
Published on: August 28, 2012
Stage-specific embryonic antigen 4 expression in epithelial ovarian carcinoma
1Women's Reproductive Health Key Laboratory of Zhejiang Province, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, China.
Summary
Stage-specific embryonic antigen 4 (SSEA-4) expression increases with ovarian tumor progression. Loss of SSEA-4 correlates with advanced cancer stages and poorer differentiation, suggesting a tumor suppressor role.
Area of Science:
- Oncology
- Stem Cell Biology
- Biomarker Research
Background:
- Stage-specific embryonic antigen 4 (SSEA-4) is a known marker for pluripotent stem cell differentiation.
- Its expression pattern in solid tumors, particularly ovarian cancer, remains largely uncharacterized.
Purpose of the Study:
- To investigate the expression of SSEA-4 in various grades of ovarian epithelial lesions.
- To evaluate the association between SSEA-4 expression and clinicopathological parameters in ovarian cancer.
Main Methods:
- Immunohistochemistry was used to analyze SSEA-4 expression in 479 ovarian lesions, including normal epithelia, benign, borderline, and invasive serous and mucinous cystadenocarcinomas.
- Clinicopathological data were correlated with SSEA-4 expression levels.
Main Results:
- SSEA-4 expression progressively increased from normal epithelium to benign, borderline, and invasive ovarian carcinomas in both serous and mucinous types.
- A significant correlation was observed between reduced SSEA-4 expression and advanced tumor stage and poor tumor cell differentiation.
Conclusions:
- SSEA-4 may play a role in epithelial ovarian carcinoma oncogenesis.
- The data suggest SSEA-4 possesses a tumor suppressor effect, indicating its potential as a therapeutic target for ovarian cancer.
