Fig. 4. Endocytosis of Cy5-nanostars in HEK293Tcells.
The uptake and intracellular trafficking of PFPA-Cy5 nanostars in HEK293T cells was examined by immunofluorescence and confocal microscopy. Antibodies to early endosomal antigen 1 (EEA1) and Rab7a were used to detect early and late endosomes, respectively. A. Localization of PFPA-Cy5 nanostars and early endosomal antigen 1 at 30, 60 and 120 min. B. Manders’ overlap coefficient for PFPA-Cy5 nanostars and early endosomal antigen 1. C. Localization of PFPA-Cy5 nanostars and Rab7a at 30, 60 and 120 min. D. Manders’ overlap coefficient for PFPA-Cy5 nanostars and Rab7a. N = 6 independent experiments. *P < 0.05, **P < 0.01. 1-way ANOVA, Duns’s multiple comparison test. Scale bar, 10 μm.