The results of the GEPIA database are similar to the results of Oncomine, suggesting that the expression of TMPRSS2 was considerably reduced in COAD, KICH, BRCA, HNSC, KIRP, LUAD, KIRC, LUSC and LIHC tumour tissues, however, TMPRSS2 expression was considerably elevated in the UCEC, as depicted in Figure S2. Here, TMPRSS2 is linked to neoplasm.