Figure 1From: Enhanced presentation of MHC class Ia, Ib and class II-restricted peptides encapsulated in biodegradable nanoparticles: a promising strategy for tumor immunotherapyNanoparticle internalization by immature DC. (A) Nanoparticles observed with a SEM. Magnification 60,000×. NP-loaded imDC examined under a fluorescence microscope after a 1-h incubation with free coumarin-6 (B), or with NP containing coumarin-6 (C). NP-loaded imDC incubated with Hoechst nuclear stain (D). Magnification 400×.Back to article page