1346636-45-0Relevant articles and documents
Metabolic Inhibitors of O-GlcNAc Transferase That Act In Vivo Implicate Decreased O-GlcNAc Levels in Leptin-Mediated Nutrient Sensing
Liu, Tai-Wei,Zandberg, Wesley F.,Gloster, Tracey M.,Deng, Lehua,Murray, Kelsey D.,Shan, Xiaoyang,Vocadlo, David J.
, p. 7644 - 7648 (2018)
O-Linked glycosylation of serine and threonine residues of nucleocytoplasmic proteins with N-acetylglucosamine (O-GlcNAc) residues is catalyzed by O-GlcNAc transferase (OGT). O-GlcNAc is conserved within mammals and is implicated in a wide range of physiological processes. Herein, we describe metabolic precursor inhibitors of OGT suitable for use both in cells and in vivo in mice. These 5-thiosugar analogues of N-acetylglucosamine are assimilated through a convergent metabolic pathway, most likely involving N-acetylglucosamine-6-phosphate de-N-acetylase (NAGA), to generate a common OGT inhibitor within cells. We show that of these inhibitors, 2-deoxy-2-N-hexanamide-5-thio-d-glucopyranoside (5SGlcNHex) acts in vivo to induce dose- and time-dependent decreases in O-GlcNAc levels in various tissues. Decreased O-GlcNAc correlates, both in vitro within adipocytes and in vivo within mice, with lower levels of the transcription factor Sp1 and the satiety-inducing hormone leptin, thus revealing a link between decreased O-GlcNAc levels and nutrient sensing in peripheral tissues of mammals.
METHODS AND COMPOUNDS FOR INHIBITING GLYCOSYLTRANSFERASES
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Page/Page column 69; 76, (2011/11/30)
The invention provides, in part, compounds that are capable of inhibiting a glycosyltransferase, such as a uridine diphospho-N-acetylglucosamine:polypeptide β N-acetylglucosaminyltransferase, an alternative N-acetylglucosaminyltransferase, an N-acetylgalactosaminyltransferase, a fucosyltransferase, a xylotransferase or a sialyltransferase. The invention also provides methods for using the compounds.
