Cholesteryl glucosides signal through the carbohydrate recognition domain of the macrophage inducible C-type lectin (mincle)?
Organic & Biomolecular Chemistry Pub Date: 2021-01-21 DOI: 10.1039/D0OB02342F
Abstract
Cholesteryl α-D-glucosides (αGCs) are unique metabolic products of the cancer-causing human pathogen Helicobacter pylori. Via signalling through the Macrophage inducible C-type lectin (Mincle) and the induction of a pro-inflammatory response, they are thought to play a role in the development of gastric atrophy. Herein, we prepared the first library of steryl D-glucosides and determined that they preferentially signal through the carbohydrate recognition domain of human Mincle, rather than the amino acid consensus motif. Lipidated steryl D-glucosides exhibited enhanced Mincle agonist activity, with C18 cholesteryl 6-O-acyl-α-D-glucoside (2c) being the most potent activator of human monocytes. Despite exhibiting strong Mincle signalling, sito- (5b) and stigmasterol glycosides (6b) led to a poor inflammatory response in primary cells, suggesting that Mincle is a potential therapeutic target for preventing H. pylori-mediated inflammation and cancer.
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Journal Name：Organic & Biomolecular Chemistry
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CAS no.: 89640-58-4
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