Fig. 7

Saporin toxin delivery into mouse embryonic fibroblasts. Cellular viability of MEFs as a function of time upon saporin incubation extracellularly delivered into cells or administered with liposomes decorated with DPTE-tbFGF and DPTE-GALA. (Inset) Confocal microscopy images of MEFs exposed for 24 h at 37 °C to saporin (10 and 100 μg/ml) and DPTE-tbFGF- and DPTE-GALA containing POPC liposomes with encapsulated saporin (nominal concentration 75 μg/ml). The Rho123 fluorescence was imaged in the green channel. Scale bars are 10 μm