KEGG analysis of stage I endometrial carcinomas vs. atrophic endometrium revealed staphylococcus aureus infection, estrogen signaling pathway, IL-17 signaling pathway, Renin secretion, inflammatory response, JAK/STAT3, K-Ras, and TNFα/NF-κB [55]. Here, NFKB1 is linked to staphylococcus aureus infection.