Abstract
Many polysaccharides have biological activities and have been investigated for their antitumor effects. In this study, we investigated the anti-tumor activity and anti-virus activity of SNP-the water-soluble polysaccharides extracted from Sipunculus nudus on Hepg2.2.15. Flow cytometry analysis demonstrated that SNP induced dose-dependent cell apoptosis on Hepg2.2.15. Real-time PCR and Western Blot analysis showed that SNP down-regulated the synthesis of HBsAg, HBV-DNA and enhanced the expression of pro-apoptosis proteins TNF-α, caspase-3, and Bax, while decreasing the expression of the anti-apoptosis proteins survivin, Bcl-2, and VEGF. These results suggested that SNP suppressed cell viability of Hepg2.2.15 and that could be a novel anti-tumor and anti-HBV agent.
Keywords:
Anti-tumor activity; Anti-virus activity; Polysaccharide; Sipunculus nudus.
Copyright © 2016. Published by Elsevier B.V.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Antineoplastic Agents / chemistry*
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Antineoplastic Agents / isolation & purification
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Antineoplastic Agents / pharmacology*
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Antiviral Agents / chemistry*
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Antiviral Agents / isolation & purification
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Antiviral Agents / pharmacology*
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Apoptosis / drug effects
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Aquatic Organisms / chemistry*
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Caspase 3 / metabolism
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Cell Cycle Checkpoints / drug effects
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DNA, Viral / genetics
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Gene Expression Regulation, Viral / drug effects
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Hep G2 Cells
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Hepatitis B Surface Antigens / biosynthesis
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Hepatitis B virus / drug effects
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Hepatitis B virus / genetics
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Hepatitis B virus / metabolism
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Humans
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Inhibitor of Apoptosis Proteins / metabolism
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Polysaccharides / chemistry
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Polysaccharides / isolation & purification
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Polysaccharides / pharmacology*
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Proto-Oncogene Proteins c-bcl-2 / metabolism
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Survivin
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Tumor Necrosis Factor-alpha / metabolism
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Vascular Endothelial Growth Factor A / metabolism
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bcl-2-Associated X Protein / metabolism
Substances
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Antineoplastic Agents
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Antiviral Agents
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BIRC5 protein, human
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DNA, Viral
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Hepatitis B Surface Antigens
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Inhibitor of Apoptosis Proteins
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Polysaccharides
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Proto-Oncogene Proteins c-bcl-2
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Survivin
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Tumor Necrosis Factor-alpha
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Vascular Endothelial Growth Factor A
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bcl-2-Associated X Protein
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Caspase 3