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Downregulation of Vascular Endothelial Growth Factor Enhances Chemosensitivity by Induction of Apoptosis in Hepatocellular Carcinoma Cells1.67 MB
Published (Version of Record)CC BY-NC V4.0, Open Access
Journal article
Downregulation of vascular endothelial growth factor enhances chemosensitivity by induction of apoptosis in hepatocellular carcinoma cells
Cell journal (Yakhteh), Vol.17(2), pp.273-287
2015
PMCID: PMC4503841
PMID: 26199906
Abstract
Hepatocellular carcinoma (HCC), one of the most common cancers worldwide, is resistant to anticancer drugs. Angiogenesis is a major cause of tumor resistance to chemotherapy, and vascular endothelial growth factor (VEGF) is a key regulator of angiogenesis. The purpose of this study is to investigate the impact of small-interfering RNA targeting VEGF gene (VEGF-siRNA) on chemosensitivity of HCC cells in vitro.
In this experimental study, transfection was performed on Hep3B cells. After transfection with siRNAs, VEGF mRNA and protein levels were examined. Cell proliferation, apoptosis and anti-apoptotic gene expression were also analyzed after treatment with VEGF-siRNA in combination with doxorubicin in Hep3B cells.
Transfection of VEGF-siRNA into Hep3B cells significantly reduced the expression of VEGF at both mRNA and protein levels. Combination therapy with VEGF-siRNA and doxorubicin more effectively suppressed cell proliferation and induced apoptosis than the respective monotherapies. This could be explained by the significant downregulation of B-cell lymphoma 2 (BCL-2) and SURVIVIN.
VEGF-siRNA enhanced the chemosensitivity of doxorubicin in Hep3B cells at least in part by suppressing the expression of anti-apoptotic genes. Therefore, the downregulation of VEGF by siRNA combined with doxorubicin treatment has been shown to yield promising results for eradicating HCC cells.
Details
- Title
- Downregulation of vascular endothelial growth factor enhances chemosensitivity by induction of apoptosis in hepatocellular carcinoma cells
- Authors/Creators
- Tri Bao Bao Le - Murdoch University, Centre for Molecular Medicine and Innovative Therapeutics
- Publication Details
- Cell journal (Yakhteh), Vol.17(2), pp.273-287
- Publisher
- Royan Institute
- Identifiers
- 991005606767707891
- Murdoch Affiliation
- Centre for Molecular Medicine and Innovative Therapeutics
- Language
- English
- Resource Type
- Journal article
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- Web Of Science research areas
- Cell Biology
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- Molecular Biology & Genetics