HCVpp and VSVpp were produced as described previously [28 (link),29 (link)] with plasmids kindly provided by B. Bartosch and F.L. Cosset (Lyon, France). Pseudotyped particles were inoculated on 293T, 786-O or Huh-7 cells for 3 h at 37°C. At 72 h post-infection, cells were lysed and processed to measure the Firefly luciferase activities as indicated by the manufacturer (Promega). Luciferase activities with HCVpp were normalized for luciferase activities obtained with VSVpp. In each figure, results are reported as the mean ± S.D. of at least three independent experiments.
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