Elevated expression of FABP4 and secretion of FABP4 by prostate cancer cells trigger the invasiveness of the prostate cancer by stimulation of matrix metalloproteinases (MMPs) via phosphatidylinositol 3-kinase (PI3K) and mitogen-activated protein kinase (MAPK) signalling pathways [172]. Here, WNK2 is linked to Familial prostate cancer.