UGCG and nasopharyngeal carcinoma: Several approaches for the treatment of NPC have been proposed, such as glucosylceramide synthase inhibitors (i.e. miglustat) [7], histone deacetylase (HDAC) inhibitors (i.e. vorinostat) [8], curcumin [9], and 2-hydroxypropyl-β-cyclodextrin (HP-β-CyD) [10,11].