XRCC2 and pancreatic neoplasm: Furthermore, an analysis on TCGA-PAAD data demonstrated a strong positive expression pattern correlation between FOXM1 and either DNA damage-related genes, such as EXO1, RAD51, XRCC2 and a stemness related gene, such as BIRC5 and the FOXM1-specific deubiquitinase, USP5 (Pearson’s R < 0.65) in pancreatic tumor tissues (Suppl.