SLC7A11 and head and neck squamous cell carcinoma: PCR results showed that SLC7A11 (***P < 0.001), CAV1 (****P < 0.0001), AKR1C3 (****P < 0.0001), AURKA (****P < 0.0001) expression was significantly up-regulated in HNSCC tissues (P < 0.05, Figures 10A–E and Supplementary Table 5).