LPA (Lysophosphatidic Acid): LPA is a bioactive lipid that functions as a potent signaling molecule, influencing processes such as cell growth, movement, and survival. It signals by binding to specific G protein-coupled LPA receptors on cell membranes and is produced through the breakdown of phospholipids. Beyond its normal physiological roles, LPA is associated with conditions like cancer, fibrosis, and cardiovascular disease.