PABPC1 and esophageal squamous cell carcinoma: We observed that exosomes derived from PABPC1-overexpressing ESCC cells conferred a substantial increase in the migration and tube formation of HUVECs when compared with exosomes from control cells, while exosomes from PABPC1-overexpressing ESCC cells, treated with the exosome inhibitor SW4869, largely restrained the migration and tube formation of HUVECs (Fig. 6B).