1-linoleoyl-GPC (18:2) (BioDeep_00000871739)

描述信息

LysoPC(18:2(9Z,12Z)) is a lysophospholipid (LyP). It is a monoglycerophospholipid in which a phosphorylcholine moiety occupies a glycerol substitution site. Lysophosphatidylcholines can have different combinations of fatty acids of varying lengths and saturation attached at the C-1 (sn-1) position. Fatty acids containing 16, 18 and 20 carbons are the most common. LysoPC(18:2(9Z,12Z)), in particular, consists of one chain of linoleic acid at the C-1 position. The linoleic acid moiety is derived from seed oils. Lysophosphatidylcholine is found in small amounts in most tissues. It is formed by hydrolysis of phosphatidylcholine by the enzyme phospholipase A2, as part of the de-acylation/re-acylation cycle that controls its overall molecular species composition. It can also be formed inadvertently during extraction of lipids from tissues if the phospholipase is activated by careless handling. In blood plasma significant amounts of lysophosphatidylcholine are formed by a specific enzyme system, lecithin:cholesterol acyltransferase (LCAT), which is secreted from the liver. The enzyme catalyzes the transfer of the fatty acids of position sn-2 of phosphatidylcholine to the free cholesterol in plasma, with formation of cholesterol esters and lysophosphatidylcholine. Lysophospholipids have a role in lipid signaling by acting on lysophospholipid receptors (LPL-R). LPL-Rs are members of the G protein-coupled receptor family of integral membrane proteins.
Lysopc(18:2(9z,12z)), also known as lysophosphatidylcholine(18:2/0:0) or lpc(18:2n6/0:0), is a member of the class of compounds known as 1-acyl-sn-glycero-3-phosphocholines. 1-acyl-sn-glycero-3-phosphocholines are glycerophosphocholines in which the glycerol is esterified with a fatty acid at O-1 position, and linked at position 3 to a phosphocholine. Thus, lysopc(18:2(9z,12z)) is considered to be a glycerophosphocholine lipid molecule. Lysopc(18:2(9z,12z)) is practically insoluble (in water) and a moderately acidic compound (based on its pKa). Lysopc(18:2(9z,12z)) can be found in a number of food items such as japanese persimmon, jicama, rubus (blackberry, raspberry), and chinese bayberry, which makes lysopc(18:2(9z,12z)) a potential biomarker for the consumption of these food products. Lysopc(18:2(9z,12z)) can be found primarily in blood, feces, and urine, as well as throughout all human tissues. Moreover, lysopc(18:2(9z,12z)) is found to be associated with schizophrenia.

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