Analysis of procainamide-derivatised heparan sulphate disaccharides in biological samples using hydrophilic interaction liquid chromatography mass spectrometry
Article
Antia, I., Mathew, K., Yagnik, D., Hills, F. and Shah, A. 2018. Analysis of procainamide-derivatised heparan sulphate disaccharides in biological samples using hydrophilic interaction liquid chromatography mass spectrometry. Analytical and Bioanalytical Chemistry. 410 (1), pp. 131-143. https://doi.org/10.1007/s00216-017-0703-1
Type | Article |
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Title | Analysis of procainamide-derivatised heparan sulphate disaccharides in biological samples using hydrophilic interaction liquid chromatography mass spectrometry |
Authors | Antia, I., Mathew, K., Yagnik, D., Hills, F. and Shah, A. |
Abstract | Glycosaminoglycans (GAGs) are a family of linear heteropolysaccharides made up of repeating disaccharide units that are found on the surface and extracellular matrix of animal cells. They are known to play a critical role in a wide range of cellular processes including proliferation, differentiation and invasion. To elucidate the mechanism of action of these molecules, it is essential to quantify their disaccharide composition. Analytical methods that have been reported involve either chemical or enzymatic depolymerisation of GAGs followed by separation of non-derivatised (native) or derivatised disaccharide subunits and detection by either UV/fluorescence or MS. However, the measurement of these disaccharides is challenging due to their hydrophilic and labile nature. Here we report a pre-column LC-MS method for the quantification of GAG disaccharide subunits. Heparan sulphate (HS) was extracted from cell lines using a combination of molecular weight cutoff and anion exchange spin filters and digested using a mixture of heparinases I, II and III. The resulting subunits were derivatised with procainamide, separated using hydrophilic interaction liquid chromatography and detected using electrospray ionisation operated in positive ion mode. Eight HS disaccharides were separated and detected together with an internal standard. The limit of detection was found to be in the range 0.6–4.9 ng/mL. Analysis of HS extracted from all cell lines tested in this study revealed a significant variation in their composition with the most abundant disaccharide being the non-sulphated ∆UA–GlcNAc. Some structural functional relationships are discussed demonstrating the viability of the pre-column method for studying GAG biology |
Research Group | Biomarkers for Cancer group |
Publisher | Springer |
Journal | Analytical and Bioanalytical Chemistry |
ISSN | 1618-2642 |
Electronic | 1618-2650 |
Publication dates | |
Online | 02 Nov 2017 |
31 Jan 2018 | |
Publication process dates | |
Deposited | 01 Nov 2017 |
Accepted | 11 Oct 2017 |
Output status | Published |
Accepted author manuscript | |
Copyright Statement | This is a post-peer-review, pre-copyedit version of an article published in Analytical and Bioanalytical Chemistry. The final authenticated version is available online at: http://dx.doi.org/10.1007/s00216-017-0703-1 |
Digital Object Identifier (DOI) | https://doi.org/10.1007/s00216-017-0703-1 |
Language | English |
https://repository.mdx.ac.uk/item/87404
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