TMPRSS2 and lung adenocarcinoma: Compared with the normal tissues, the expression of TMPRSS2 was higher in ESCA (esophageal carcinoma), KIRP (kidney renal papillary cell carcinoma), LUAD (lung adenocarcinoma), READ (rectum adenocarcinoma), and UCEC (uterine corpus endometrial carcinoma) (Figure 1B).