PE(20:0/20:5(7Z,9Z,11E,13E,17Z)-3OH(5,6,15))

Found 16 Sample Hits

m/z	Adducts	Species	Organ	Scanning	Sample
842.5461	[M+H]+ PPM:9.6	Homo sapiens	esophagus	DESI ()	LNTO22_1_3 - MTBLS385 Resolution: 75μm, 121x68 Description
842.5445	[M+H]+ PPM:11.4	Homo sapiens	esophagus	DESI ()	LNTO22_1_4 - MTBLS385 Resolution: 17μm, 82x80 Description
841.5689	[M-H2O+NH4]+ PPM:1.5	Homo sapiens	esophagus	DESI ()	LNTO22_1_9 - MTBLS385 Resolution: 75μm, 89x74 Description
842.55	[M+H]+ PPM:4.9	Homo sapiens	esophagus	DESI ()	LNTO22_1_9 - MTBLS385 Resolution: 75μm, 89x74 Description
841.5779	[M-H2O+NH4]+ PPM:9.2	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.
842.5527	[M+H]+ PPM:1.7	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).
842.548	[M+H]+ PPM:7.3	Homo sapiens	esophagus	DESI ()	LNTO26_7_1 - MTBLS385 Resolution: 17μm, 75x74 Description
842.5485	[M+H]+ PPM:6.7	Homo sapiens	esophagus	DESI ()	LNTO26_7_2 - MTBLS385 Resolution: 17μm, 135x101 Description
842.548	[M+H]+ PPM:7.3	Homo sapiens	esophagus	DESI ()	LNTO26_7_3 - MTBLS385 Resolution: 75μm, 82x88 Description
842.5484	[M+H]+ PPM:6.8	Homo sapiens	esophagus	DESI ()	LNTO22_1_5 - MTBLS385 Resolution: 75μm, 135x94 Description
841.5682	[M-H2O+NH4]+ PPM:2.3	Homo sapiens	esophagus	DESI ()	LNTO22_1_7 - MTBLS385 Resolution: 75μm, 69x54 Description
842.5482	[M+H]+ PPM:7.1	Homo sapiens	esophagus	DESI ()	LNTO22_1_7 - MTBLS385 Resolution: 75μm, 69x54 Description
842.547	[M+H]+ PPM:8.5	Homo sapiens	esophagus	DESI ()	LNTO22_1_8 - MTBLS385 Resolution: 75μm, 69x61 Description
842.5468	[M+H]+ PPM:8.7	Homo sapiens	esophagus	DESI ()	LNTO22_2_1 - MTBLS385 Resolution: 75μm, 89x88 Description
842.5473	[M+H]+ PPM:8.1	Homo sapiens	esophagus	DESI ()	LNTO22_2_2 - MTBLS385 Resolution: 75μm, 135x94 Description
842.548	[M+H]+ PPM:7.3	Homo sapiens	esophagus	DESI ()	LNTO26_16_1 - MTBLS385 Resolution: 75μm, 95x88 Description

PE(20:0/20:5(7Z,9Z,11E,13E,17Z)-3OH(5,6,15)) is an oxidized phosphatidylethanolamine (PE). Oxidized phosphatidylethanolamines are glycerophospholipids in which a phosphorylethanolamine moiety occupies a glycerol substitution site and at least one of the fatty acyl chains has undergone oxidation. As all oxidized lipids, oxidized phosphatidylethanolamines belong to a group of biomolecules that have a role as signaling molecules. The biosynthesis of oxidized lipids is mediated by several enzymatic families, including cyclooxygenases (COX), lipoxygenases (LOX) and cytochrome P450s (CYP). Non-enzymatically oxidized lipids are produced by uncontrolled oxidation through free radicals and are considered harmful to human health (PMID: 33329396). As is the case with diacylglycerols, phosphatidylethanolamines can have many different combinations of fatty acids of varying lengths, saturation and degrees of oxidation attached at the C-1 and C-2 positions. PE(20:0/20:5(7Z,9Z,11E,13E,17Z)-3OH(5,6,15)), in particular, consists of one chain of one eicosanoyl at the C-1 position and one chain of Lipoxin A5 at the C-2 position. Phospholipids are ubiquitous in nature and are key components of the lipid bilayer of cells, as well as being involved in metabolism and signaling. Similarly to what occurs with phospholipids, the fatty acid distribution at the C-1 and C-2 positions of glycerol within oxidized phospholipids is continually in flux, owing to phospholipid degradation and the continuous phospholipid remodeling that occurs while these molecules are in membranes. Oxidized PEs can be synthesized via three different routes. In one route, the oxidized PE is synthetized de novo following the same mechanisms as for PEs but incorporating oxidized acyl chains (PMID: 33329396). An alternative is the transacylation of one of the non-oxidized acyl chains with an oxidized acylCoA (PMID: 33329396). The third pathway results from the oxidation of the acyl chain while still attached to the PE backbone, mainly through the action of LOX (PMID: 33329396).