Figure 6

MTS assay results showing selective cytotoxicity of Dox delivered by DNA dendrimer in target CEM cells (a) but much less in nontarget Ramos cells (b), in contrast to nonselective cytotoxicity of free Dox in both target cells and nontarget cells. The selective cytotoxicity of Dox delivered by DNA dendrimer indicates the capability of DNA dendrimers for targeted drug delivery.