Figure 4.

Cellular association of PLL- or F–PLL-coated liposomal DXR in (A) KB cells and in (B) A549 cells incubated at 37°C, and in (C) KB cells incubated at 4°C for 3 hours with or without 5 mM FA analyzed by flow cytometry.

Note: Each value represents the mean ± SD (n = 3).

Abbreviations: DXR, doxorubicin; FA, folic acid; F-PLL, folate-poly(L-lysine).