(-)-Epigallocatechin sulfate
Formula: C15H13O10S- (385.0229)
Chinese Name:
BioDeep ID: BioDeep_00000032670
( View LC/MS Profile)
SMILES: OC1=CC2=C(O[C@H]([C@H](C2)OS([O-])(=O)=O)C2=CC(O)=C(O)C(O)=C2)C(O)=C1
Found 2 Sample Hits
m/z | Adducts | Species | Organ | Scanning | Sample | |
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350.0099 | [M+H-2H2O]+PPM:2.3 |
Mus musculus | Liver | MALDI (CHCA) |
Salmonella_final_pos_recal - MTBLS2671Resolution: 17μm, 691x430
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. |
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408.0158 | [M+Na]+PPM:8.9 |
Homo sapiens | colorectal adenocarcinoma | DESI () |
520TopL, 490TopR, 510BottomL, 500BottomR-profile - MTBLS415Resolution: 17μm, 147x131
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). |
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Epigallocatechin sulfate is the sulfated form of epigallocatechin, wherein the sulfate group is attached to the O-3 position. Sulfation is a phase II biotransformation reaction that involves a sulfotransferase enzyme catalyzing the transfer of a sulfo group from a donor cosubstrate, usually 3-phosphoadenosine-5-phosphosulfate (PAPS), to a substrate molecules hydroxyl group (in this case epigallogatechin). Sulfation is involved in a variety of biological processes, including detoxification, hormone regulation, molecular recognition, cell signaling, and viral entry into cells. Epigallocatechin (EGC) is a flavan-3-ol, which are derivatives of flavans that possess a 2-phenyl-3,4-dihydro-2H-chromen-3-ol skeleton. EGC is one of the antioxidant chemicals found in many fruits and teas. This compound possesses an epimer, found notably in green tea, called "gallocatechin" (GC) (PMID: 30917581), with the gallate residue being in an isomeric trans position. Other sources of gallocatechin are bananas, persimmon, and pomegranate. This compound had been shown to have moderate affinity to the human cannabinoid receptor, which may contribute to the health benefits found by consuming green tea.