Figure 6.

Evaluation of H²K4bT co-polymer alone or in combination with liposomes in their effects on transfection. The co-polymer (4 μg) was mixed with DNA (1 μg of PCI-Luc) and in some treatment groups, liposomes (1, 1.5 or 2 μg) were then added; the mixture was then added to DMEM and 10% serum containing the MDA-MB-435 cells. Twenty-four hours after transfection, the cells were lysed to measure luciferase activity. The data represent the mean ± SEM of luciferase of three experiments. *, P < 0.01; H²K4bT versus H²K4bT and liposome treatment groups (one-way ANOVA with bonferroni-multiple comparisons).