However, other astrocyte genes (Slc7a10, Myoc, Fam107a, Gjb6, Slc1a2, Aqp4, Aldh1a1, Slc2a4, S100b, Atp1a2), were not expressed by astroglia differentiated from NPC at in vivo astrocyte levels but were generally increased compared to NPC. The gene discussed is AQP4; the disease is nasopharyngeal carcinoma.