Abstract
Invasion by hepatocellular carcinoma (HCC) has been reported to occur via the up-regulation of nuclear factor-kappaB (NF-κB). Sorafenib can improve the overall survival in patients with HCC, however, the association of its inhibitory mechanisms with the inactivation of NF-κB remains unclear. Here, Huh7 cell line transfected with NF-κB-luc2 vector was used to study the effects of sorafenib on NF-κB activity, on expressions of matrix metalloproteinase-9 (MMP-9) and vascular endothelial growth factor (VEGF), which were induced by 12-O-tetradecanoylphorbol-13-acetate (TPA). TPA increased the NF-κB activity and the expressions of MMP-9 and VEGF significantly, but its effects were suppressed by sorafenib in a dose-dependent manner. Similar results were found with PD98059, an inhibitor of extracellular signal-regulated kinase (ERK). Furthermore, transfection of Huh7 cell with an inhibitor of kappaB-α mutant vector, led to reduced TPA-induced MMP-9 and VEGF mRNA expressions. Sorafenib inhibits TPA-induced MMP-9 and VEGF expressions via the suppression of ERK/NF-κB pathway in HCC cells.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Base Sequence
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Benzenesulfonates / pharmacology*
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Carcinoma, Hepatocellular / enzymology
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Carcinoma, Hepatocellular / metabolism*
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Carcinoma, Hepatocellular / pathology
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Cell Line, Tumor
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DNA Primers
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Electrophoretic Mobility Shift Assay
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Extracellular Signal-Regulated MAP Kinases / metabolism*
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Humans
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Liver Neoplasms / enzymology
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Liver Neoplasms / metabolism*
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Liver Neoplasms / pathology
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Matrix Metalloproteinase 9 / drug effects*
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Matrix Metalloproteinase 9 / metabolism
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NF-kappa B / metabolism*
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Niacinamide / analogs & derivatives
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Phenylurea Compounds
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Pyridines / pharmacology*
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Reverse Transcriptase Polymerase Chain Reaction
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Sorafenib
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Tetradecanoylphorbol Acetate / pharmacology*
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Vascular Endothelial Growth Factor A / antagonists & inhibitors*
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Vascular Endothelial Growth Factor A / metabolism
Substances
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Benzenesulfonates
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DNA Primers
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NF-kappa B
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Phenylurea Compounds
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Pyridines
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Vascular Endothelial Growth Factor A
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Niacinamide
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Sorafenib
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Extracellular Signal-Regulated MAP Kinases
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Matrix Metalloproteinase 9
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Tetradecanoylphorbol Acetate