For example, lncRNA PCAT7 upregulated ELF2 by sponging miR-134-5p to promote tumor growth in NPC [17]; lncRNA SNHG7 regulated miR-145a-5p/NUAK1 axis to drive metastasis and invasion in NPC [18]. The gene discussed is PCAT7; the disease is nasopharyngeal carcinoma.