To determine whether these NSCs reflected NPC pathology, we evaluated the accumulation of lipid droplets and LAMP1-positive lysosomes; NPC patient-derived NSCs showed intracellular accumulation of lipid droplets and LAMP1-positive lysosomes, albeit in smaller amounts than those previously reported (Fig. 3A, B) [28,30]. The gene discussed is LAMP1; the disease is nasopharyngeal carcinoma.