Through the HPA database, we found that three genes (ABCC9, AHNAK, and DIP2C) had low expression in patients with tumours, whereas eight genes (PLOD1, SLC3A2, RUNX2, RAD9A, CHMP4C, DARS2, CLIC3, and POU5F1) were highly expressed. Here, RAD9A is linked to neoplasm.