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  • Title: Characterization of dengue virus entry into HepG2 cells.
    Author: Suksanpaisan L, Susantad T, Smith DR.
    Journal: J Biomed Sci; 2009 Feb 04; 16(1):17. PubMed ID: 19272179.
    Abstract:
    BACKGROUND: Despite infections by the dengue virus being a significant problem in tropical and sub-tropical countries, the mechanism by which the dengue virus enters into mammalian cells remains poorly described. METHODS: A combination of biochemical inhibition, dominant negative transfection of Eps15 and siRNA mediated gene silencing was used to explore the entry mechanism of dengue into HepG2 cells. RESULTS: Results were consistent with entry via multiple pathways, specifically via clathrin coated pit mediated endocytosis and macropinocytosis, with clathrin mediated endocytosis being the predominant pathway. CONCLUSION: We propose that entry of the dengue virus to mammalian cells can occur by multiple pathways, and this opens the possibility of the virus being directed to multiple cellular compartments. This would have significant implications in understanding the interaction of the dengue virus with the host cell machinery.
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