Tumorigenic and pro-metastatic mechanisms of AMPs on gynecological cancers: (1) HBD3 and elafin activate NF-κB pathway [12,95]; (2) Elafin, S100A7 and SLPI induce MEK/ERK pathway [58,68,87,95,96]; (3) SLPI promotes extracellular matrix remodeling and angiogenesis [68,97]; (4) LL-37 and S100A7 induce epithelial-mesenchymal transition (EMT) [58,98]; (5) HE4 controls cell cycle [91]; (6) A vicious circle between macrophages and ovarian cancer cells by interaction between LL-37 and versican V1 [99]. MEK, Mitogen-activated protein kinases; ERK, Extracellular signal-regulated kinases; RAGE, Receptor for advanced glycation end-products; EMT, Epithelial–mesenchymal transition; VDR, vitamin D receptor; TLR, Toll-like receptor; MMP, Matrix metalloproteinases; CYP27B1, Cytochrome P450 family 27 subfamily B member 1.