Figure 2. Innate immune deficiencies and expression of miR122 facilitate replication of HCV replicons in mouse fibroblasts.
Immortalized MEFs (iMEFs) of the indicated genotypes were lentivirally transduced with GFP or miR122 and then transfected with replication-competent (wild-type) or defective (GNN) bicistronic subgenomic (JFH1) constructs expressing blasticidin S deaminase (bsd) gene that confers resistance blasticidin selection. Cells were selected in blasticidin-containing medium and stained with crystal violet after fixation.