To date, there have been no reports on functions of SNHG14, HCG18, and MAGI2-AS3 in melanoma, but they constitute a precisely regulated ceRNA network in various solid tumors such as colon cancer, bladder cancer, liver cancer, etc., and regulate the malignant behavior of tumor cells (62, 63). The gene discussed is HCG18; the disease is urinary bladder carcinoma.