This is also the case for thyroid cancers; several amino acid transporters such as SLC7A5 (LAT1), SLC1A5 (ASCT2) and SLC7A11 (xCT) are overexpressed in thyroid cancer tissues, with some of them correlating with patients’ poor prognosis [95,96,97]. This evidence concerns the gene SLC7A11 and thyroid cancer.