Screening the DCGs across 12 cancer types (bladder, breast, colon, esophagus, kidney, liver, lung, skin, ovary, prostate, sarcoma, and thyroid cancers), suggested that these genes could be speculated as metastatic-related genes as DCGs-shared GART and SLC7A5 with 12 tumor types. The gene discussed is SLC7A5; the disease is thyroid gland carcinoma.