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A Sweet Galactose Transfer: Metabolic Oligosaccharide Engineering as a Tool To Study Glycans in Plasmodium Infection.

Accepted version
Peer-reviewed

Type

Article

Change log

Authors

Kitowski, Annabel 
Bernardes, Gonçalo JL  ORCID logo  https://orcid.org/0000-0001-6594-8917

Abstract

The introduction of chemical reporter groups into glycan structures through metabolic oligosaccharide engineering (MOE) followed by bio-orthogonal ligation is an important tool to study glycosylation. We show the incorporation of synthetic galactose derivatives that bear terminal alkene groups in hepatic cells, with and without infection by Plasmodium berghei parasites, the causative agent of malaria. Additionally, we demonstrated the contribution of GLUT1 to the transport of these galactose derivatives, and observed a consistent increase in the uptake of these compounds going from naïve to P. berghei-infected cells. Finally, we used MOE to study the interplay between Plasmodium parasites and their mosquito hosts, to reveal a possible transfer of galactose building blocks from the latter to the former. This strategy has the potential to provide new insights into Plasmodium glycobiology as well as for the identification and characterization of key glycan structures for further vaccine development.

Description

Keywords

GLUT1 transporters, bioorthogonal chemistry, carbohydrates, inverse electron-demand Diels-Alder, malaria, Alkenes, Galactose, Hep G2 Cells, Humans, Malaria, Metabolic Engineering, Molecular Structure, Polysaccharides

Journal Title

Chembiochem

Conference Name

Journal ISSN

1439-4227
1439-7633

Volume Title

21

Publisher

Wiley

Rights

All rights reserved