PSMD2 and lung adenocarcinoma: As shown in Figure 1C, paired t-test analysis showed that PSMD2 mRNA expression level in lung adenocarcinoma (n = 57) were significantly upregulated relative to normal lung tissues (n = 57) (7.156 ± 0.662 vs. 6.512 ± 0.177, p < 0.001).