Abstract
The GB virus C/hepatitis G virus (GBV-C/HGV) is a Flaviviridae member that despite its nonpathogenicity, has become of great interest given that it could inhibit the replication of the human immunodeficiency virus (HIV). Therefore, a better knowledge of the viral protein E2 has become our aim. In this study, a GBV-C model cell system (HuhEG) which expressing a fusion protein of the GBV-C E2 protein and enhanced green fluorescent protein (EGFP) stably was established. And the expression of these proteins was silenced effectively by the two E2 gene-specific siRNAs and an EGFP gene-specific siRNA. This inhibition is sequence-specific and extensive (90%). This HuhEG/specific siRNAs system can provide an approach for investigating the association between GBV-C E2 and HIV replication, which may be of potential value in the development of novel prophylactic or therapeutic agents for HIV infection.
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