SERPINE1 and head and neck squamous cell carcinoma: According to a pan-cancer data set of TGCA, expression levels of SERPINE1 mRNA were significantly increased (p < 0.001) in breast invasive carcinoma (BRCA), colon adenocarcinoma (COAD), stomach adenocarcinoma (STAD), glioblastoma multiforme (GBM), kidney renal clear cell carcinoma (KIRC), and head and neck squamous cell carcinoma (HNSC).