Quantification of LAMP1-, LC3B-, and GM130-positive UL32-GFP vesicles. The percentage of LAMP1 (A), LC3B (B), and GM130 (C) positive UL32-GFP vesicles on both cell types are illustrated. Two hundred to four hundred vesicles were counted for each marker. Most vesicles in both cell types contain LAMP1. However, fibroblasts do not contain LC3B or GM130. *, P < 0.05; **, P < 0.01.