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          Institute: MPI für Dynamik komplexer technischer Systeme     Collection: Bioprocess Engineering     Display Documents

ID: 571774.0, MPI für Dynamik komplexer technischer Systeme / Bioprocess Engineering
High-Throughput Glycosylation Pattern Analysis of Glycoproteins Utilizing a Multiplexing Capillary-DNA-Sequencer
Authors:Rapp, E.; Hennig, R.; Borowiak, M.; Kottler, R.; Reichl, U.
Name of Conference/Meeting:Meeting with Roche Diagnostics
Place of Conference/Meeting:Penzberg, Germany
(Start) Date of Conference/Meeting
End Date of Conference/Meeting 
Audience:Experts Only
Intended Educational Use:No
Abstract / Description:Glycomics is a rapidly emerging field that can be viewed as a complement to other „omics“ approaches including proteomics and genomics. There is a dramatic dynamic increase in the demand for sophisticated databases and analytical tools in glycobiology respectively glycobiotechnology. Especially one glycoanalysis approach, based on multiplexed capillary gel electrophoresis with laser induced fluorescence detection (CGE-LIF) utilizing a DNA-sequencer, shows high potential for high-throughput (HTP) glycoprofiling of glycoconjugates.
The aim of the project presented was to investigate and to improve this innovative approach for different fields of application with respect to sample preparation, separation and data analysis. First, sample preparation method and workflow were optimized with respect to performance and feasibility regarding HTP. Second, with up to 96 capillaries in parallel, the fully automated separation with an impressive sensitivity is shown to result in massive reduction of the effective separation time per sample. Third, data analysis was automated developing a novel modular software-tool for data-processing and -analysis, interfacing a corresponding oligosaccharide-database. Using this software-tool, the generated “normalized” electropherograms of glycomoieties (“fingerprints”) can be evaluated on two stages: “simple” qualitative and quantitative fingerprint comparison and structural elucidation of each single glycocomponent. The smart applicability of this technique is demonstrated for different types of glycosamples such as the “glycome” of (monoclonal) antibodies, human milk and of human blood serum. This novel modular glycoanalysis system and method allows fully automated, highly sensitive instrument-, lab- and operator-independent HTP-glycoanalysis, even when operated by non-experts. This is in contrast to the currently prevailing methods, where multiplexing with respect to high-throughput is highly cost and lab-space intensive and ties up a lot of manpower and experts hands-on-time.
Document Type:Talk at Event
Communicated by:Udo Reichl
Affiliations:MPI für Dynamik komplexer technischer Systeme/Bioprocess Engineering
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