LysoPA(16:0/0:0) (BioDeep_00000005382)

描述信息

LysoPA(16:0/0:0) is a lysophosphatidic acid. It is a glycerophospholipid in which a phosphate moiety occupies a glycerol substitution site. Lysophosphatidic acids can have different combinations of fatty acids of varying lengths and saturation attached at the C-1 (sn-1) or C-2 (sn-2) position. Fatty acids containing 16 and 18 carbons are the most common. Lysophosphatidic acid is the simplest possible glycerophospholipid. It is the biosynthetic precursor of phosphatidic acid. Although it is present at very low levels only in animal tissues, it is extremely important biologically, influencing many biochemical processes. In particular, lysophosphatidic acid is an intercellular lipid mediator with growth factor-like activities, and is rapidly produced and released from activated platelets to influence target cells. 1-Palmitoyl lysophosphatidic acid is the major component of lysophosphatidic acid (LPA) in plasma, and is in a reduced ratio in individuals with gynecological cancers (PMID 11585410). LPA is a pluripotent lipid mediator controlling growth, motility, and differentiation, that has a strong influence on the chemotaxis and ultrastructure of human neutrophils (PMID 7416233). In serum and plasma, LPA is mainly converted from lysophospholipids, whereas in platelets and some cancer cells it is converted from phosphatidic acid. In each pathway, at least two phospholipase activities are required: phospholipase A1 (PLA1)/PLA2 plus lysophospholipase D (lysoPLD) activities are involved in the first pathway and phospholipase D (PLD) plus PLA1/PLA2 activities are involved in the second pathway. (PMID 15271293).
Lysopa(16:0/0:0), also known as 1-palmitoyl lysophosphatidic acid or 1-hexadecanoyl-sn-glycero-3-phosphate, is a member of the class of compounds known as 1-acylglycerol-3-phosphates. 1-acylglycerol-3-phosphates are lysophosphatidic acids where the glycerol is esterified with a fatty acid at O-1 position. Thus, lysopa(16:0/0:0) is considered to be a glycerophosphate lipid molecule. Lysopa(16:0/0:0) is practically insoluble (in water) and a moderately acidic compound (based on its pKa). Lysopa(16:0/0:0) can be found in a number of food items such as alfalfa, soy bean, banana, and barley, which makes lysopa(16:0/0:0) a potential biomarker for the consumption of these food products. Lysopa(16:0/0:0) can be found primarily throughout all human tissues. Lysopa(16:0/0:0) exists in all living species, ranging from bacteria to humans. In humans, lysopa(16:0/0:0) is involved in several metabolic pathways, some of which include cardiolipin biosynthesis CL(16:0/18:1(11Z)/18:0/18:1(9Z)), cardiolipin biosynthesis CL(16:0/16:1(9Z)/16:1(9Z)/16:0), cardiolipin biosynthesis CL(16:0/20:4(5Z,8Z,11Z,14Z)/18:0/20:4(5Z,8Z,11Z,14Z)), and cardiolipin biosynthesis CL(16:0/18:1(11Z)/18:0/18:1(11Z)). Lysopa(16:0/0:0) is also involved in several metabolic disorders, some of which include de novo triacylglycerol biosynthesis TG(16:0/24:0/20:4(8Z,11Z,14Z,17Z)), de novo triacylglycerol biosynthesis TG(16:0/22:2(13Z,16Z)/22:0), de novo triacylglycerol biosynthesis TG(16:0/15:0/18:3(9Z,12Z,15Z)), and de novo triacylglycerol biosynthesis TG(16:0/15:0/24:0).

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