LysoPA(18:2(9Z,12Z)/0:0)

{2-hydroxy-3-[(9Z,12Z)-octadeca-9,12-dienoyloxy]propoxy}phosphonic acid

Formula: C21H39O7P (434.2433)
Chinese Name: 1-亚油酰基-2-羟基-SN-甘油-3-磷脂酸
BioDeep ID: BioDeep_00000029186 ( View LC/MS Profile)
SMILES: [H][C@@](O)(COC(=O)CCCCCCCC=CCC=CCCCCC)COP(O)(O)=O



Found 99 Sample Hits

m/z Adducts Species Organ Scanning Sample
417.2419 [M+H-H2O]+
PPM:4.5
Homo sapiens esophagus DESI ()
LNTO22_1_3 - MTBLS385
Resolution: 75μm, 121x68

Description

434.2684 [M-H2O+NH4]+
PPM:4.2
Homo sapiens esophagus DESI ()
LNTO22_1_3 - MTBLS385
Resolution: 75μm, 121x68

Description

435.2523 [M+H]+
PPM:3.9
Homo sapiens esophagus DESI ()
LNTO22_1_3 - MTBLS385
Resolution: 75μm, 121x68

Description

452.279 [M+NH4]+
PPM:4.1
Homo sapiens esophagus DESI ()
LNTO22_1_3 - MTBLS385
Resolution: 75μm, 121x68

Description

399.2364 [M+H-2H2O]+
PPM:17.3
Homo sapiens esophagus DESI ()
LNTO22_1_4 - MTBLS385
Resolution: 17μm, 82x80

Description

417.2401 [M+H-H2O]+
PPM:0.1
Homo sapiens esophagus DESI ()
LNTO22_1_4 - MTBLS385
Resolution: 17μm, 82x80

Description

435.2505 [M+H]+
PPM:0.2
Homo sapiens esophagus DESI ()
LNTO22_1_4 - MTBLS385
Resolution: 17μm, 82x80

Description

417.2413 [M+H-H2O]+
PPM:3
Homo sapiens esophagus DESI ()
LNTO29_16_2 - MTBLS385
Resolution: 17μm, 95x101

Description

452.2785 [M+NH4]+
PPM:3
Homo sapiens esophagus DESI ()
LNTO29_16_2 - MTBLS385
Resolution: 17μm, 95x101

Description

417.2408 [M+H-H2O]+
PPM:1.8
Homo sapiens esophagus DESI ()
TO42T - MTBLS385
Resolution: 17μm, 69x81

Description

399.2223 [M+H-2H2O]+
PPM:18
Homo sapiens esophagus DESI ()
LNTO22_1_9 - MTBLS385
Resolution: 75μm, 89x74

Description

417.2424 [M+H-H2O]+
PPM:5.7
Homo sapiens esophagus DESI ()
LNTO22_1_9 - MTBLS385
Resolution: 75μm, 89x74

Description

435.2529 [M+H]+
PPM:5.3
Homo sapiens esophagus DESI ()
LNTO22_1_9 - MTBLS385
Resolution: 75μm, 89x74

Description

452.2797 [M+NH4]+
PPM:5.6
Homo sapiens esophagus DESI ()
LNTO22_1_9 - MTBLS385
Resolution: 75μm, 89x74

Description

417.2398 [M+H-H2O]+
PPM:0.6
Mus musculus Liver MALDI (CHCA)
Salmonella_final_pos_recal - MTBLS2671
Resolution: 17μm, 691x430

Description

A more complete and holistic view on host–microbe interactions is needed to understand the physiological and cellular barriers that affect the efficacy of drug treatments and allow the discovery and development of new therapeutics. Here, we developed a multimodal imaging approach combining histopathology with mass spectrometry imaging (MSI) and same section imaging mass cytometry (IMC) to study the effects of Salmonella Typhimurium infection in the liver of a mouse model using the S. Typhimurium strains SL3261 and SL1344. This approach enables correlation of tissue morphology and specific cell phenotypes with molecular images of tissue metabolism. IMC revealed a marked increase in immune cell markers and localization in immune aggregates in infected tissues. A correlative computational method (network analysis) was deployed to find metabolic features associated with infection and revealed metabolic clusters of acetyl carnitines, as well as phosphatidylcholine and phosphatidylethanolamine plasmalogen species, which could be associated with pro-inflammatory immune cell types. By developing an IMC marker for the detection of Salmonella LPS, we were further able to identify and characterize those cell types which contained S. Typhimurium. [dataset] Nicole Strittmatter. Holistic Characterization of a Salmonella Typhimurium Infection Model Using Integrated Molecular Imaging, metabolights_dataset, V1; 2022. https://www.ebi.ac.uk/metabolights/MTBLS2671.

435.2503 [M+H]+
PPM:0.7
Mus musculus Liver MALDI (CHCA)
Salmonella_final_pos_recal - MTBLS2671
Resolution: 17μm, 691x430

Description

A more complete and holistic view on host–microbe interactions is needed to understand the physiological and cellular barriers that affect the efficacy of drug treatments and allow the discovery and development of new therapeutics. Here, we developed a multimodal imaging approach combining histopathology with mass spectrometry imaging (MSI) and same section imaging mass cytometry (IMC) to study the effects of Salmonella Typhimurium infection in the liver of a mouse model using the S. Typhimurium strains SL3261 and SL1344. This approach enables correlation of tissue morphology and specific cell phenotypes with molecular images of tissue metabolism. IMC revealed a marked increase in immune cell markers and localization in immune aggregates in infected tissues. A correlative computational method (network analysis) was deployed to find metabolic features associated with infection and revealed metabolic clusters of acetyl carnitines, as well as phosphatidylcholine and phosphatidylethanolamine plasmalogen species, which could be associated with pro-inflammatory immune cell types. By developing an IMC marker for the detection of Salmonella LPS, we were further able to identify and characterize those cell types which contained S. Typhimurium. [dataset] Nicole Strittmatter. Holistic Characterization of a Salmonella Typhimurium Infection Model Using Integrated Molecular Imaging, metabolights_dataset, V1; 2022. https://www.ebi.ac.uk/metabolights/MTBLS2671.

417.2412 [M+H-H2O]+
PPM:2.8
Homo sapiens esophagus DESI ()
LNTO30_8M_1 - MTBLS385
Resolution: 17μm, 69x54

Description

435.2517 [M+H]+
PPM:2.5
Homo sapiens esophagus DESI ()
LNTO30_8M_1 - MTBLS385
Resolution: 17μm, 69x54

Description

452.2783 [M+NH4]+
PPM:2.5
Homo sapiens esophagus DESI ()
LNTO30_8M_1 - MTBLS385
Resolution: 17μm, 69x54

Description

417.2408 [M+H-H2O]+
PPM:1.8
Homo sapiens esophagus DESI ()
TO39T - MTBLS385
Resolution: 17μm, 69x81

Description

417.2336 [M+H-H2O]+
PPM:0.4
Homo sapiens colorectal adenocarcinoma DESI ()
80TopL, 50TopR, 70BottomL, 60BottomR-profile - MTBLS415
Resolution: 17μm, 137x136

Description

The human colorectal adenocarcinoma sample was excised during a surgical operation performed at the Imperial College Healthcare NHS Trust. The sample and procedures were carried out in accordance with ethical approval (14/EE/0024).

435.2439 [M+H]+
PPM:1.1
Homo sapiens colorectal adenocarcinoma DESI ()
80TopL, 50TopR, 70BottomL, 60BottomR-profile - MTBLS415
Resolution: 17μm, 137x136

Description

The human colorectal adenocarcinoma sample was excised during a surgical operation performed at the Imperial College Healthcare NHS Trust. The sample and procedures were carried out in accordance with ethical approval (14/EE/0024).

452.277 [M+NH4]+
PPM:0.3
Homo sapiens colorectal adenocarcinoma DESI ()
80TopL, 50TopR, 70BottomL, 60BottomR-profile - MTBLS415
Resolution: 17μm, 137x136

Description

The human colorectal adenocarcinoma sample was excised during a surgical operation performed at the Imperial College Healthcare NHS Trust. The sample and procedures were carried out in accordance with ethical approval (14/EE/0024).

417.2377 [M+H-H2O]+
PPM:5.6
Mytilus edulis gill MALDI (DHB)
20190202_MS38_Crassostrea_Gill_350-1500_DHB_pos_A25_11um_305x210 - MTBLS2960
Resolution: 11μm, 305x210

Description

single cell layer class_4 is the gill structure cells, metabolite ion 534.2956 is the top representive ion of this type of cell

417.2435 [M+H-H2O]+
PPM:8.3
Homo sapiens colorectal adenocarcinoma DESI ()
520TopL, 490TopR, 510BottomL, 500BottomR-profile - MTBLS415
Resolution: 17μm, 147x131

Description

The human colorectal adenocarcinoma sample was excised during a surgical operation performed at the Imperial College Healthcare NHS Trust. The sample and procedures were carried out in accordance with ethical approval (14/EE/0024).

435.2431 [M+H]+
PPM:2.8
Homo sapiens colorectal adenocarcinoma DESI ()
520TopL, 490TopR, 510BottomL, 500BottomR-profile - MTBLS415
Resolution: 17μm, 147x131

Description

The human colorectal adenocarcinoma sample was excised during a surgical operation performed at the Imperial College Healthcare NHS Trust. The sample and procedures were carried out in accordance with ethical approval (14/EE/0024).

417.2423 [M+H-H2O]+
PPM:5.4
Homo sapiens colorectal adenocarcinoma DESI ()
439TopL, 409TopR, 429BottomL, 419BottomR-profile - MTBLS415
Resolution: 17μm, 157x136

Description

The human colorectal adenocarcinoma sample was excised during a surgical operation performed at the Imperial College Healthcare NHS Trust. The sample and procedures were carried out in accordance with ethical approval (14/EE/0024).

435.2531 [M+H]+
PPM:5.7
Homo sapiens colorectal adenocarcinoma DESI ()
439TopL, 409TopR, 429BottomL, 419BottomR-profile - MTBLS415
Resolution: 17μm, 157x136

Description

The human colorectal adenocarcinoma sample was excised during a surgical operation performed at the Imperial College Healthcare NHS Trust. The sample and procedures were carried out in accordance with ethical approval (14/EE/0024).

417.2425 [M+H-H2O]+
PPM:5.9
Homo sapiens NA DESI ()
160TopL,130TopR,150BottomL,140BottomR-profile - MTBLS415
Resolution: 17μm, 142x136

Description

417.2411 [M+H-H2O]+
PPM:2.5
Homo sapiens esophagus DESI ()
LNTO29_16_3 - MTBLS385
Resolution: 17μm, 108x107

Description

435.2516 [M+H]+
PPM:2.3
Homo sapiens esophagus DESI ()
LNTO29_16_3 - MTBLS385
Resolution: 17μm, 108x107

Description

452.2782 [M+NH4]+
PPM:2.3
Homo sapiens esophagus DESI ()
LNTO29_16_3 - MTBLS385
Resolution: 17μm, 108x107

Description

417.2419 [M+H-H2O]+
PPM:4.5
Homo sapiens esophagus DESI ()
LNTO26_7_1 - MTBLS385
Resolution: 17μm, 75x74

Description

435.2525 [M+H]+
PPM:4.4
Homo sapiens esophagus DESI ()
LNTO26_7_1 - MTBLS385
Resolution: 17μm, 75x74

Description

452.2792 [M+NH4]+
PPM:4.5
Homo sapiens esophagus DESI ()
LNTO26_7_1 - MTBLS385
Resolution: 17μm, 75x74

Description

417.2424 [M+H-H2O]+
PPM:5.7
Homo sapiens esophagus DESI ()
LNTO26_7_2 - MTBLS385
Resolution: 17μm, 135x101

Description

435.2531 [M+H]+
PPM:5.7
Homo sapiens esophagus DESI ()
LNTO26_7_2 - MTBLS385
Resolution: 17μm, 135x101

Description

452.2796 [M+NH4]+
PPM:5.4
Homo sapiens esophagus DESI ()
LNTO26_7_2 - MTBLS385
Resolution: 17μm, 135x101

Description

417.2418 [M+H-H2O]+
PPM:4.2
Homo sapiens esophagus DESI ()
LNTO26_7_3 - MTBLS385
Resolution: 75μm, 82x88

Description

435.2524 [M+H]+
PPM:4.1
Homo sapiens esophagus DESI ()
LNTO26_7_3 - MTBLS385
Resolution: 75μm, 82x88

Description

417.2402 [M+H-H2O]+
PPM:0.4
Homo sapiens esophagus DESI ()
TO40T - MTBLS385
Resolution: 17μm, 82x74

Description

417.2411 [M+H-H2O]+
PPM:2.5
Homo sapiens esophagus DESI ()
TO31T - MTBLS385
Resolution: 75μm, 56x54

Description

435.2516 [M+H]+
PPM:2.3
Homo sapiens esophagus DESI ()
TO31T - MTBLS385
Resolution: 75μm, 56x54

Description

452.2783 [M+NH4]+
PPM:2.5
Homo sapiens esophagus DESI ()
TO31T - MTBLS385
Resolution: 75μm, 56x54

Description

417.2418 [M+H-H2O]+
PPM:4.2
Homo sapiens esophagus DESI ()
TO29T - MTBLS385
Resolution: 75μm, 56x48

Description

435.2522 [M+H]+
PPM:3.7
Homo sapiens esophagus DESI ()
TO29T - MTBLS385
Resolution: 75μm, 56x48

Description

452.2789 [M+NH4]+
PPM:3.9
Homo sapiens esophagus DESI ()
TO29T - MTBLS385
Resolution: 75μm, 56x48

Description

417.2411 [M+H-H2O]+
PPM:2.5
Homo sapiens esophagus DESI ()
TO41T - MTBLS385
Resolution: 75μm, 69x43

Description

435.2514 [M+H]+
PPM:1.8
Homo sapiens esophagus DESI ()
TO41T - MTBLS385
Resolution: 75μm, 69x43

Description

452.2782 [M+NH4]+
PPM:2.3
Homo sapiens esophagus DESI ()
TO41T - MTBLS385
Resolution: 75μm, 69x43

Description

417.2413 [M+H-H2O]+
PPM:3
Homo sapiens esophagus DESI ()
LNTO30_8M_2 - MTBLS385
Resolution: 75μm, 108x68

Description

417.2412 [M+H-H2O]+
PPM:2.8
Homo sapiens esophagus DESI ()
LNTO30_8M_3 - MTBLS385
Resolution: 75μm, 69x54

Description

417.2415 [M+H-H2O]+
PPM:3.5
Homo sapiens esophagus DESI ()
LNTO30_8M_4 - MTBLS385
Resolution: 75μm, 62x48

Description

417.2414 [M+H-H2O]+
PPM:3.3
Homo sapiens esophagus DESI ()
LNTO30_8M_5 - MTBLS385
Resolution: 75μm, 56x54

Description

452.2784 [M+NH4]+
PPM:2.8
Homo sapiens esophagus DESI ()
LNTO30_8M_5 - MTBLS385
Resolution: 75μm, 56x54

Description

417.2413 [M+H-H2O]+
PPM:3
Homo sapiens esophagus DESI ()
LNTO30_17_2 - MTBLS385
Resolution: 75μm, 82x54

Description

435.2518 [M+H]+
PPM:2.7
Homo sapiens esophagus DESI ()
LNTO30_17_2 - MTBLS385
Resolution: 75μm, 82x54

Description

452.2785 [M+NH4]+
PPM:3
Homo sapiens esophagus DESI ()
LNTO30_17_2 - MTBLS385
Resolution: 75μm, 82x54

Description

417.2422 [M+H-H2O]+
PPM:5.2
Homo sapiens esophagus DESI ()
LNTO22_1_5 - MTBLS385
Resolution: 75μm, 135x94

Description

435.2526 [M+H]+
PPM:4.6
Homo sapiens esophagus DESI ()
LNTO22_1_5 - MTBLS385
Resolution: 75μm, 135x94

Description

452.2794 [M+NH4]+
PPM:5
Homo sapiens esophagus DESI ()
LNTO22_1_5 - MTBLS385
Resolution: 75μm, 135x94

Description

399.2227 [M+H-2H2O]+
PPM:17
Homo sapiens esophagus DESI ()
LNTO22_1_7 - MTBLS385
Resolution: 75μm, 69x54

Description

417.242 [M+H-H2O]+
PPM:4.7
Homo sapiens esophagus DESI ()
LNTO22_1_7 - MTBLS385
Resolution: 75μm, 69x54

Description

435.2525 [M+H]+
PPM:4.4
Homo sapiens esophagus DESI ()
LNTO22_1_7 - MTBLS385
Resolution: 75μm, 69x54

Description

452.2791 [M+NH4]+
PPM:4.3
Homo sapiens esophagus DESI ()
LNTO22_1_7 - MTBLS385
Resolution: 75μm, 69x54

Description

417.2418 [M+H-H2O]+
PPM:4.2
Homo sapiens esophagus DESI ()
LNTO22_1_8 - MTBLS385
Resolution: 75μm, 69x61

Description

434.2683 [M-H2O+NH4]+
PPM:3.9
Homo sapiens esophagus DESI ()
LNTO22_1_8 - MTBLS385
Resolution: 75μm, 69x61

Description

435.2522 [M+H]+
PPM:3.7
Homo sapiens esophagus DESI ()
LNTO22_1_8 - MTBLS385
Resolution: 75μm, 69x61

Description

452.2789 [M+NH4]+
PPM:3.9
Homo sapiens esophagus DESI ()
LNTO22_1_8 - MTBLS385
Resolution: 75μm, 69x61

Description

417.2418 [M+H-H2O]+
PPM:4.2
Homo sapiens esophagus DESI ()
LNTO22_2_1 - MTBLS385
Resolution: 75μm, 89x88

Description

435.2523 [M+H]+
PPM:3.9
Homo sapiens esophagus DESI ()
LNTO22_2_1 - MTBLS385
Resolution: 75μm, 89x88

Description

452.2789 [M+NH4]+
PPM:3.9
Homo sapiens esophagus DESI ()
LNTO22_2_1 - MTBLS385
Resolution: 75μm, 89x88

Description

417.2421 [M+H-H2O]+
PPM:4.9
Homo sapiens esophagus DESI ()
LNTO22_2_2 - MTBLS385
Resolution: 75μm, 135x94

Description

435.2526 [M+H]+
PPM:4.6
Homo sapiens esophagus DESI ()
LNTO22_2_2 - MTBLS385
Resolution: 75μm, 135x94

Description

452.2792 [M+NH4]+
PPM:4.5
Homo sapiens esophagus DESI ()
LNTO22_2_2 - MTBLS385
Resolution: 75μm, 135x94

Description

417.2419 [M+H-H2O]+
PPM:4.5
Homo sapiens esophagus DESI ()
LNTO26_16_1 - MTBLS385
Resolution: 75μm, 95x88

Description

435.2523 [M+H]+
PPM:3.9
Homo sapiens esophagus DESI ()
LNTO26_16_1 - MTBLS385
Resolution: 75μm, 95x88

Description

452.279 [M+NH4]+
PPM:4.1
Homo sapiens esophagus DESI ()
LNTO26_16_1 - MTBLS385
Resolution: 75μm, 95x88

Description

417.2411 [M+H-H2O]+
PPM:2.5
Homo sapiens esophagus DESI ()
LNTO29_18_2 - MTBLS385
Resolution: 75μm, 62x68

Description

434.2676 [M-H2O+NH4]+
PPM:2.3
Homo sapiens esophagus DESI ()
LNTO29_18_2 - MTBLS385
Resolution: 75μm, 62x68

Description

435.2515 [M+H]+
PPM:2.1
Homo sapiens esophagus DESI ()
LNTO29_18_2 - MTBLS385
Resolution: 75μm, 62x68

Description

452.2782 [M+NH4]+
PPM:2.3
Homo sapiens esophagus DESI ()
LNTO29_18_2 - MTBLS385
Resolution: 75μm, 62x68

Description

417.2414 [M+H-H2O]+
PPM:3.3
Homo sapiens esophagus DESI ()
LNTO30_7_1 - MTBLS385
Resolution: 75μm, 69x68

Description

435.2518 [M+H]+
PPM:2.7
Homo sapiens esophagus DESI ()
LNTO30_7_1 - MTBLS385
Resolution: 75μm, 69x68

Description

452.2786 [M+NH4]+
PPM:3.2
Homo sapiens esophagus DESI ()
LNTO30_7_1 - MTBLS385
Resolution: 75μm, 69x68

Description

399.2367 [M+H-2H2O]+
PPM:18.1
Homo sapiens esophagus DESI ()
LNTO30_7_2 - MTBLS385
Resolution: 75μm, 82x68

Description

417.2412 [M+H-H2O]+
PPM:2.8
Homo sapiens esophagus DESI ()
LNTO30_7_2 - MTBLS385
Resolution: 75μm, 82x68

Description

417.2409 [M+H-H2O]+
PPM:2.1
Homo sapiens colorectal adenocarcinoma DESI ()
240TopL, 210TopR, 230BottomL, 220BottomR-centroid - MTBLS176
Resolution: 50μm, 142x141

Description

435.2515 [M+H]+
PPM:2.1
Homo sapiens colorectal adenocarcinoma DESI ()
240TopL, 210TopR, 230BottomL, 220BottomR-centroid - MTBLS176
Resolution: 50μm, 142x141

Description

452.2781 [M+NH4]+
PPM:2.1
Homo sapiens colorectal adenocarcinoma DESI ()
240TopL, 210TopR, 230BottomL, 220BottomR-centroid - MTBLS176
Resolution: 50μm, 142x141

Description

417.2413 [M+H-H2O]+
PPM:3
Homo sapiens colorectal adenocarcinoma DESI ()
200TopL, 170TopR, 190BottomL, 180BottomR-centroid - MTBLS176
Resolution: 50μm, 132x126

Description

435.2519 [M+H]+
PPM:3
Homo sapiens colorectal adenocarcinoma DESI ()
200TopL, 170TopR, 190BottomL, 180BottomR-centroid - MTBLS176
Resolution: 50μm, 132x126

Description

452.2781 [M+NH4]+
PPM:2.1
Homo sapiens colorectal adenocarcinoma DESI ()
200TopL, 170TopR, 190BottomL, 180BottomR-centroid - MTBLS176
Resolution: 50μm, 132x126

Description

417.2408 [M+H-H2O]+
PPM:1.8
Homo sapiens colorectal adenocarcinoma DESI ()
160TopL,130TopR,150BottomL,140BottomR-centroid - MTBLS176
Resolution: 50μm, 142x136

Description

435.2514 [M+H]+
PPM:1.8
Homo sapiens colorectal adenocarcinoma DESI ()
160TopL,130TopR,150BottomL,140BottomR-centroid - MTBLS176
Resolution: 50μm, 142x136

Description

399.2371 [M+H-2H2O]+
PPM:19.1
Homo sapiens colorectal adenocarcinoma DESI ()
120TopL, 90TopR, 110BottomL, 100BottomR-centroid - MTBLS176
Resolution: 50μm, 132x136

Description

417.2411 [M+H-H2O]+
PPM:2.5
Homo sapiens colorectal adenocarcinoma DESI ()
120TopL, 90TopR, 110BottomL, 100BottomR-centroid - MTBLS176
Resolution: 50μm, 132x136

Description

435.2517 [M+H]+
PPM:2.5
Homo sapiens colorectal adenocarcinoma DESI ()
120TopL, 90TopR, 110BottomL, 100BottomR-centroid - MTBLS176
Resolution: 50μm, 132x136

Description

452.2783 [M+NH4]+
PPM:2.5
Homo sapiens colorectal adenocarcinoma DESI ()
120TopL, 90TopR, 110BottomL, 100BottomR-centroid - MTBLS176
Resolution: 50μm, 132x136

Description


LPA(18:2(9Z,12Z)/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) [HMDB] LysoPA(18:2(9Z,12Z)/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).