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Updated: Sep 25, 2026

Evaluation of Stem Cell Properties in Human Ovarian Carcinoma Cells Using Multi and Single Cell-based Spheres Assays
Published on: January 3, 2015
[Down-regulation of vascular endothelial growth factor expression in ovarian cancer cell line SKOV3 by
Fang-fang Lin1, Huai-zeng Chen, Xing Xie
1Department of Obstetrics, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou 310006, China.
Objective:
To determine whether interferon-gamma (IFN-gamma)inhibit the expression of vascular endothelial growth factor (VEGF) in ovarian cancer cell line SKOV3 with the level of mRNA and protein.
Methods:
Cultured SKOV3 was treated by IFN-gamma with different concentration and time. The morphological changes of SKOV3 treated by IFN-gamma through microscope and proliferation by methyl thiazolyl tetrazolium (MTT). The expression of VEGF mRNA in SKOV3 culture was determined by relative quantitative reverse-transcription polymerase chain reaction. The VEGF protein level in supernatants was determined by enzyme-linked immunosorbent assay (ELISA) and in cytoplasma by immunocytochemical staining.
Results:
There is a small changes in shape on SKOV3, but no alter of cell proliferation during treating with different concentration and time. Expression of VEGF mRNA and protein decreased with the INF-gamma concentration increasement, but no time-effect pattern exist. The effect peak appeared when the concentration was 1,000 U/ml.
Conclusion:
IFN-gamma can inhibit the expression of VEGF in ovarian cancer cell line SKOV3 with the level of mRNA and protein.
Insights
Interferon-gamma (IFN-gamma) inhibits vascular endothelial growth factor (VEGF) expression in ovarian cancer cells. This study shows reduced VEGF mRNA and protein levels in SKOV3 cells treated with IFN-gamma.
Area of Science:
- Oncology
- Immunology
- Molecular Biology
Context:
- Ovarian cancer is a leading cause of cancer-related death in women.
- Vascular Endothelial Growth Factor (VEGF) plays a crucial role in tumor angiogenesis and progression.
- Interferon-gamma (IFN-gamma) is a cytokine with known immunomodulatory and anti-tumor properties.
Purpose:
- To investigate the effect of IFN-gamma on VEGF expression in the SKOV3 ovarian cancer cell line.
- To quantify changes in VEGF at both mRNA and protein levels.
Summary:
- SKOV3 cells were treated with varying concentrations and durations of IFN-gamma.
- No significant changes in cell morphology or proliferation were observed.
- IFN-gamma treatment led to a dose-dependent decrease in VEGF mRNA and protein expression.
- Optimal inhibition was observed at 1,000 U/ml IFN-gamma, with no clear time-dependent effect.
Impact:
- Demonstrates that IFN-gamma can suppress VEGF production in ovarian cancer cells.
- Suggests a potential therapeutic strategy for targeting angiogenesis in ovarian cancer.
- Provides a basis for further research into IFN-gamma's role in ovarian cancer treatment.
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