alexa Analytical Glycomics: Biopharmaceutical Applications | 67166
ISSN: 2168-958X

Journal of Glycobiology
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3rd Glycobiology World Congress

Andras Guttman
University of Debrecen, Hungary
Keynote: J Glycobiol
DOI: 10.4172/2168-958X-C1-007
Abstract
Full characterization of the N-glycosylation moieties of biopharmaceuticals is of high importance, especially when glycovariants may impact the biological effect. Well over half of the new generation protein therapeutics are monoclonal antibodies, in which the attached oligosaccharides not only affect their physicochemical properties and stability, but also their receptor binding activity, circulating half-life and last but not least, their immunogenicity. Therefore, high performance glycoanalytical techniques are of great demand for N-glycosylation analysis of therapeutic antibodies, especially during clone selection, process development and lot release. Analysis of complex carbohydrates is a very challenging task due to the lack of their chromophore/fluorophore activity and in many instances, easily ionizable groups, necessitating derivatization before electric field mediated analysis. Full N-glycosylation characterization may also require sequencing with consecutive exoglycosidase digestion steps, followed by capillary electrophoresis analysis. In this presentation, the state of the art of liquid phase separation methods will be conferred for comprehensive structural elucidation of protein N-glycosylation, mostly using capillary electrophoresis and its combination with mass spectrometry (CESI-MS). Assisted by the emerging field of glycoinformatics, assignment of the identity of the separated glycan structures will be demonstrated by using the recently introduced GUcal software.
Biography

Andras Guttman is currently an MTA-PE Lendulet Professor of Translational Glycomics directing the Horváth Csaba Laboratory of Bioseparation Sciences in Hungary and leads the application efforts in SCIEX in California. His work is focused on capillary electrophoresis and CESI-MS based glycomics and glycoproteomics analysis of biomedical, cell biology and biopharmaceutical interests. He has nearly 300 scientific publications, 35 book chapters, edited 4 textbooks and holds 23 patents. He is on the board of several international organizations, editorial boards of a dozens of scientific journals, recognized by numerous awards and is a Member of the Hungarian Academy of Sciences.

Email: [email protected]

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