Other DAPs upregulated in PR (CAD, RALB, FAM120A, PSMC2, LRPPRC, PARP1, PSMB5, ANP32B, IMPDH2, XRCC5, TPD52L2, EIFA5A, DDT, GNB1, HDGF, and MYO1C) were associated with metabolic activity in rectal tumor tissue (18). Here, PARP1 is linked to rectal neoplasm.