Fig. 7

Impact of UNG2 and RPA32 for dissemination of cell-free virus particles between T cells and MDMs. a Schematic representation of the experimental system. shLuc, shUNG2- or shRPA32-transduced Jurkat cells were infected with HIV-1 (YU2 strain) expressing the VSV-G envelope, and the cell culture supernatant was then collected 3 days later. After p24 normalization, cell-free viruses produced by shRNA-transduced Jurkat cells were used for infection of MDMs, and virus production was monitored after infection. b and c Replication in MDMs of Jurkat cells-produced viruses. Replication-competent viruses were produced in shLuc-, shUNG2- or shRPA32-transduced Jurkat cells and then used to infect MDMs. Aliquots of cell culture supernatants were collected 4 and 8 days after infection for p24 quantification. In b, the individual kinetics of replication in MDMs from three different donors of viruses produced in shUNG2- or shRPA32-tranduced Jurkat cells are shown. In c, results are expressed as the percentage of p24 production at each time point relative to that of MDM cells infected with control viruses. Values are the means of two independent experiments performed with MDMs from three different donors. Error bars represent the SEM. Statistical significance was determined using Students t test (ns, p > 0.05; *p < 0.05)