Chemo-enzymatic synthesis of the carbohydrate antigen N-glycolylneuraminic acid from glucose.
N-Glycolylneuraminic acid (Neu5Gc) is a non-human sialic acid, which may play a significant role in human pathologies, such as cancer and vascular disease. Further studies into the role of Neu5Gc in human disease are hindered by limited sources of this carbohydrate. Using a chemo-enzymatic approach, Neu5Gc was accessed in six steps from glucose. The synthesis allows access to gram-scale quantities quickly and economically and produces Neu5Gc in superior quality to commercial sources. Finally, we demonstrate that the synthesized Neu5Gc can be incorporated into the cell glycocalyx of human cells, which do not naturally synthesize this sugar. The synthesis produces Neu5Gc suitable for in vitro or in vivo use.
Pearce
Oliver M T
OM
Department of Cellular and Molecular Medicine, University of California at San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0687, USA.
Varki
Ajit
A
D000941:Antigens / Q000737:chemistry / Q000378:metabolism*; D002460:Cell Line; D004798:Enzymes / Q000378:metabolism*; D005947:Glucose / Q000737:chemistry* / Q000378:metabolism; D019276:Glycocalyx / Q000378:metabolism; D006801:Humans; D009438:Neuraminic Acids / Q000138:chemical synthesis* / Q000737:chemistry / Q000378:metabolism*; D016979:Pasteurella multocida / Q000201:enzymology
D000941:Antigens; D004798:Enzymes; D009438:Neuraminic Acids; C032592:N-glycolylneuraminic acid; D005947:Glucose
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