Impaired expression and function of toll‐like receptor 7 in hepatitis C virus infection in human hepatoma cells
Serena Chang, Karen Kodys, Gyongyi Szabo – 23 December 2009 – Hepatitis C virus (HCV) interferes with interferon (IFN)‐mediated innate immune defenses. Toll‐like receptor (TLR) 7 agonists robustly inhibit HCV infection. We hypothesize that HCV infection may interfere with the expression and/or function of TLR7, a sensor of single‐stranded RNA. We identified reduced TLR7 RNA and protein levels in hepatoma cells expressing HCV (full‐length, BB7‐subgenomic, and JFH‐1 clone) compared with control HCV‐naïve cells.