Both CCNE1 (p < 0.001) (Figure 2C) and PLK1 (p < 0.001) (Figure 2D) showed higher expression in tumor tissue than in normal tissue, while the expression of SERPINA1 in both tumor and normal tissue was not significantly different (p = 0.541) (Figure 2B) (Supplementary Table S3). Here, PLK1 is linked to neoplasm.