Figure 6.
Transduction efficiency of DOSPA/DOPE or TAT-pK with chloroquine in various human cancer cell lines. Cells (5 × 104) were incubated with 1 ml medium containing pGL3-promoter DNA (1 μg) complexed with DOSPA/DOPA (open bars) or with TAT-pK in the presence of 50 μM chloroquine (grey bars) or 100 μM chloroquine (filled bars) and grown as described under Materials and Methods. After 48 h incubation, cells were harvested and luciferase activity was measured. Each end point represents the mean±s.d. RLU, relative light units.