Figure 2

Anti-hCD81 mAb inhibits HCV infection of hCD81 expressing cells but not of Huh-7w7/mCD81 cells. HCVcc (upper panel) and HCVpp 2a (lower panel) infections of cell lines were performed in absence (white histograms) or presence (black histograms) of 1.3.3.22 anti-hCD81 mAb (3 μg/ml). At 2 days post-infection, cells were lysed and processed as described in methods. P < 0.05 as calculated by the Mann-Whitney's test; *, statistically not significant difference in HCVcc infectivity compared to infectivity in absence of antibodies.