KEGG analysis (Additional file 7: Figure S2A) revealed that these genes were involved in “cytokine‒cytokine receptor interaction”, “viral protein interaction with cytokine and cytokine receptor”, and “cell cycle”; they were also inextricably linked to the tumor-associated pathways “NF-kappa B signaling pathway”, “p53 signaling pathway”, and “PPAR signaling pathway”. Here, PPARA is linked to neoplasm.