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Imaging Glycosylation In Vivo by Metabolic Labeling and Magnetic Resonance Imaging.

Published version
Peer-reviewed

Type

Article

Change log

Authors

Wainman, Yéléna A 
Wright, Alan 
Kettunen, Mikko I 
Rodrigues, Tiago B 

Abstract

Glycosylation is a ubiquitous post-translational modification, present in over 50 % of the proteins in the human genome,1 with important roles in cell-cell communication and migration. Interest in glycome profiling has increased with the realization that glycans can be used as biomarkers of many diseases,2 including cancer.3 We report here the first tomographic imaging of glycosylated tissues in live mice by using metabolic labeling and a gadolinium-based bioorthogonal MRI probe. Significant N-azidoacetylgalactosamine dependent T1 contrast was observed in vivo two hours after probe administration. Tumor, kidney, and liver showed significant contrast, and several other tissues, including the pancreas, spleen, heart, and intestines, showed a very high contrast (>10-fold). This approach has the potential to enable the rapid and non-invasive magnetic resonance imaging of glycosylated tissues in vivo in preclinical models of disease.

Description

Keywords

Bioorthogonale Chemie, Gadolinium, Glykane, Krebs, Magnetresonanztomographie

Journal Title

Angew Chem Weinheim Bergstr Ger

Conference Name

Journal ISSN

0044-8249
1521-3757

Volume Title

128

Publisher

Wiley
Sponsorship
Cancer Research Uk (None)
Cancer Research UK (CB4100)
Cancer Research UK (C14303/A17197)
Cancer Research UK (17242)