IRAK2 and squamous cell lung carcinoma: Meanwhile, a lower expression of IRAK2 was observed in uterine corpus endometrial carcinoma (UCEC), prostate adenocarcinoma (PRAD), lung squamous cell carcinoma (LUSC), breast invasive carcinoma (BRCA), and kidney chromophobe (KICH) (Figure 1(d) and Figure 2(b)).