However, the expression of TMPRSS2 was lower in BRCA (breast invasive carcinoma), KICH (kidney chromophobe), LIHC (liver hepatocellular carcinoma), PRAD (prostate adenocarcinoma), STAD (stomach adenocarcinoma), and THCA (thyroid carcinoma) (Figure 1B). The gene discussed is TMPRSS2; the disease is invasive breast carcinoma.