The dengue virus nonstructural protein 1 (NS1) increases NF-κB transcriptional activity in HepG2 cells

The dengue virus nonstructural protein 1 (NS1) increases NF-κB transcriptional activity in HepG2... Dengue virus nonstructural protein 1 (NS1) is a glycoprotein involved in viral RNA replication. NS1 associates with host cell proteins and can be found in lipid raft domains on the host cell surface, suggesting an involvement in signal transduction events. In this work, we observed that NS1 expression in HepG2 cells increases nuclear translocation of NF-κB p65 protein, which was paralleled by DNA-protein complex formation. Luciferase assays showed an increase in NF-κB transcriptional activities in NS1-expressing cells when compared to parental cells. NS1 may enhance NF-κB function in host cells and contribute to the pathogenesis of dengue. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Virology Springer Journals

The dengue virus nonstructural protein 1 (NS1) increases NF-κB transcriptional activity in HepG2 cells

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Publisher
Springer Vienna
Copyright
Copyright © 2011 by Springer-Verlag
Subject
Biomedicine; Medical Microbiology ; Infectious Diseases; Virology
ISSN
0304-8608
eISSN
1432-8798
D.O.I.
10.1007/s00705-011-0969-0
Publisher site
See Article on Publisher Site

Abstract

Dengue virus nonstructural protein 1 (NS1) is a glycoprotein involved in viral RNA replication. NS1 associates with host cell proteins and can be found in lipid raft domains on the host cell surface, suggesting an involvement in signal transduction events. In this work, we observed that NS1 expression in HepG2 cells increases nuclear translocation of NF-κB p65 protein, which was paralleled by DNA-protein complex formation. Luciferase assays showed an increase in NF-κB transcriptional activities in NS1-expressing cells when compared to parental cells. NS1 may enhance NF-κB function in host cells and contribute to the pathogenesis of dengue.

Journal

Archives of VirologySpringer Journals

Published: Jul 1, 2011

References

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