LPA (Lysophosphatidic Acid): LPA is a bioactive lipid that functions as a potent signalling molecule, affecting 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. Apart from its normal physiological roles, LPA is associated with conditions like cancer, fibrosis, and cardiovascular disease.