Effect of Fluorous Tags on Glycosylation of Saccharide Primers in Animal Cells
作者:Maria Carmelita Z. Kasuya、Mami Tojino、Shinya Nakano、Mamoru Mizuno、Kenichi Hatanaka
DOI:10.1246/bcsj.82.1409
日期:2009.11.15
A series of fluorous-tagged saccharide primers with different contents of fluorous atoms was synthesized and introduced into mouse melanoma B16 cells. The primers did not affect cell morphology and viability at a concentration of 50 µM. The numerous fluorine atoms did not pose a steric barrier to primer assimilation into cells and did not affect cellular-enzyme-catalyzed glycosylation. The lactoside primers were sialylated to afford GM3-type oligosaccharide. On the other hand, the GlcNAc primers were galactosylated to afford a lactosamine derivative that was further sialylated by cellular enzymes to afford a sialylated lactosamine.
Fluorous-tagged glycans with an oligo(ethylene glycol) linker are well tolerated glycosyltransferase substrates for high-yield OPME synthesis and facile FSPE purification of glycans.
The present invention provides a method of preparing an isolated oligosaccharide or glycolipid by preparing the oligosaccharide or glycolipid having a hydrophobic group, such as a perfluorinated alkyl or a fatty acid, and separating the oligosaccharide or glycolipid using a solid-phase extraction cartridge.