In nasopharyngeal carcinoma C666-1 and HK-1 cells, FOXD3-AS1 acts as a promoter of cell proliferation via the inverse regulation of miR-135a-5p (33) or microRNA-185-3p and the upregulation of its downstream gene, FOXD3 (34). The gene discussed is FOXD3; the disease is nasopharyngeal carcinoma.