RT Journal Article SR Electronic T1 International Union of Pharmacology. XXXIV. Lysophospholipid Receptor Nomenclature JF Pharmacological Reviews JO Pharmacol Rev FD American Society for Pharmacology and Experimental Therapeutics SP 265 OP 269 DO 10.1124/pr.54.2.265 VO 54 IS 2 A1 Chun, Jerold A1 Goetzl, Edward J. A1 Hla, Timothy A1 Igarashi, Yasuyuki A1 Lynch, Kevin R. A1 Moolenaar, Wouter A1 Pyne, Susan A1 Tigyi, Gabor YR 2002 UL http://pharmrev.aspetjournals.org/content/54/2/265.abstract AB The lysophospholipids, lysophosphatidic acid (LPA) and sphingosine 1-phosphate (S1P), are now recognized as important extracellular signaling molecules. These lipid mediators are pleiotropic; among the most common cellular responses are mitogenesis, cell survival (anti-apoptosis), inhibition of adenylyl cyclase and calcium mobilization. Physiologic events associated with these mediators include platelet aggregation, vasopressor activity, wound healing, immune modulation, and angiogenesis. Many of the actions of LPA and S1P are mediated through a set of eight G protein-coupled receptors. Five of these are S1P-prefering while the remaining three are LPA receptors. These receptors are expressed widely and in aggregate signal through a variety of heterotrimeric G proteins. The lysophospholipid receptor family is referred to commonly as the “Edg” group (e.g., Edg-1, Edg-2, etc.). Herein, the molecular pharmacology of the lysophospholipid receptors is reviewed briefly, and a rational nomenclature for LPA and S1P receptors that is consistent with the International Union of Pharmacology guidelines is proposed.