Notably, the expression of hsa-miR-206 (GSE45238) and STC2 (GSE2379, GSE13601, GSE25099, GSE12452 and GSE9844) in six microarrays was significantly differential expression in HNSCC tissues than in normal tissues (Figs. 8Q–8V). This evidence concerns the gene STC2 and head and neck squamous cell carcinoma.