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Vascular permeability factor gene expression in normal and neoplastic human ovaries
T A Olson1, D Mohanraj, L F Carson
1Department of Pharmacology, University of Minnesota, Minneapolis 55455.
Cancer Research
|January 1, 1994
Summary
Vascular permeability factor (VPF) is expressed in ovarian cancers, contributing to fluid buildup and metastasis. Understanding VPF in epithelial ovarian cancer may lead to new treatments.
Area of Science:
- Oncology
- Molecular Biology
- Biochemistry
Background:
- Epithelial ovarian cancer is an aggressive malignancy with poor prognosis.
- Novel therapeutic strategies are needed to improve patient survival.
- Elucidating biological events in ovarian cancer progression is crucial.
Purpose of the Study:
- To investigate the role of Vascular Permeability Factor (VPF) in epithelial ovarian cancer.
- To determine the source and biological activity of VPF in ovarian neoplasms.
Main Methods:
- Immunoassay to detect VPF levels in ascites.
- Reverse transcription-polymerase chain reaction (RT-PCR) to identify VPF gene expression.
- Western blotting and endothelial cell proliferation assays to confirm VPF activity.
Main Results:
- VPF gene expression was constitutively found in normal and neoplastic human ovaries.
- Abundant VPF levels were detected in the ascites of ovarian cancer patients.
- Malignant ovarian epithelium was identified as a source of VPF.
- Secreted VPF isoforms (VPF121 and VPF165) were biologically active.
Conclusions:
- VPF is expressed in epithelial ovarian cancer and its isoforms are biologically active.
- VPF may play a significant role in ascites formation and tumor metastasis in ovarian cancer.
- Targeting VPF could be a potential therapeutic strategy for ovarian cancer.