SNHG15 and nasopharyngeal carcinoma: Of them, ZNF667-AS1 was downregulated in NPC, and the others (GAS5, SNHG1, SNHG12, SNHG15, SNHG16, SNHG17, SNHG6, SNHG8, THAP9-AS1, and ZFAS1) were upregulated in NPC.