A simplified and sensitive fluorescent method for disaccharide analysis of both heparan sulfate and chondroitin/dermatan sulfates from biological samples.
AffiliationCancer Research UK Glyco-Oncology Group, School of Cancer and Imaging Sciences, University of Manchester, Paterson Institute for Cancer Research, Manchester M20 4BX, UK.
MetadataShow full item record
AbstractSulfated glycosaminoglycans regulate the biological functions of a wide variety of proteins, primarily through high affinity interactions mediated by specific sugar sequences or patterns/densities of sulfation. Disaccharide analysis of such glycosaminoglycans yields important diagnostic and comparative structural information on sulfate patterning. When applied to specific oligosaccharides it can also make a vital contribution to sequence elucidation. Standard UV detection of lyase-generated disaccharides resolved by HPLC can lack sufficient sensitivity and be compromised by contaminating UV signals, when dealing with scarce tissue- or cell culture-derived material. Various methods exist for improved detection, but usually involve additional HPLC hardware and often necessitate different procedures for analyzing different glycosaminoglycans. We describe a simple procedure, requiring only standard HPLC instrumentation, involving prederivatization of disaccharides with 2-aminoacridone with no cleanup of samples, followed by a separation by reverse-phase HPLC that is sensitive to as little as approximately 100 pg (approximately 10(-13) mol) of an individual disaccharide, thereby allowing analyses of >10 ng of total glycosaminoglycan. Importantly, separate analysis of both HS/heparin and CS/DS species within a mixed glycosaminoglycan pool can be performed using the same procedure on a single column. We demonstrate its applicability in dealing with small quantities of material derived from rat liver (where we demonstrate a high abundance of the unusual CS-E species within the CS/DS pool) and MDCK cells (which revealed a HS species of relatively low N-sulfation, but high O-sulfation). This simplified method should find a widespread utility for analyzing glycosaminoglycans from limited animal and cell culture samples.
CitationA simplified and sensitive fluorescent method for disaccharide analysis of both heparan sulfate and chondroitin/dermatan sulfates from biological samples. 2008, 18 (6):483-91 Glycobiology
- Source-induced fragmentation of heparin, heparan, and galactosaminoglycans and application.
- Authors: Hu P, Fang L, Chess EK
- Issue date: 2009 Mar 15
- Identification of glycosaminoglycans using high-performance liquid chromatography on a hydroxyapatite column.
- Authors: Narita H, Takeda Y, Takagaki K, Nakamura T, Harata S, Endo M
- Issue date: 1995 Nov 20