Fig. 2.

Cellular uptake of Dox-encapsulating peptide-modified liposomes on the cancer cells 293T-Syn2 (A) and colon26 (B).

The cells were treated with Dox-encapsulating liposomes (PEG–Dox), Dox-encapsulating AG73 peptides (AG73–Dox), or AG73T peptide-modified liposomes (AG73T–Dox) ([Dox]=20 μg/ml) for 1 h at 37 °C. After incubation, the cells were washed, and their fluorescence intensities were measured by flow cytometry.