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High-throughput mass spectrometric N-glycomics
Glycosylation is an important way in which proteins, the functional agents of our body, can be modified to alter and expand their functional repertoire. Glycans consist of monosaccharides that are linked in a chained and branching fashion, often to form specific epitopes that are of clinical and biopharmaceutical interest.
In order to study glycosylation, there is a need for high-throughput analysis methodology. Matrix-assisted laser desorption/ionization (MALDI) mass spectrometry (MS) is a prominent example of this, as it can rapidly provide information on the monosaccharide compositions of glycans. However, it is challenging for the method to yield information on the structural aspects of glycosylation, as well as on glycans carrying sialic acids. These sialylated glycans are prone to in-source and metastable decay, and tend to require chemical derivatization to allow their analysis.
The aim of this...
Show moreGlycosylation is an important way in which proteins, the functional agents of our body, can be modified to alter and expand their functional repertoire. Glycans consist of monosaccharides that are linked in a chained and branching fashion, often to form specific epitopes that are of clinical and biopharmaceutical interest.
In order to study glycosylation, there is a need for high-throughput analysis methodology. Matrix-assisted laser desorption/ionization (MALDI) mass spectrometry (MS) is a prominent example of this, as it can rapidly provide information on the monosaccharide compositions of glycans. However, it is challenging for the method to yield information on the structural aspects of glycosylation, as well as on glycans carrying sialic acids. These sialylated glycans are prone to in-source and metastable decay, and tend to require chemical derivatization to allow their analysis.
The aim of this thesis is the development and application of new methodology for MALDI-MS N-glycomics, and, with a focus on metabolic syndrome and rheumatoid arthritis, to increase our understanding of the role of N-glycosylation in health and disease. A principal outcome of the work is a sialic acid derivatization protocol that allows the mass-based discrimination of alpha-2,3- and alpha-2,6-linked sialic acids, facilitating their study in a high-throughput setting.
Show less- All authors
- Reiding, K.R.
- Supervisor
- Wuhrer, M.
- Co-supervisor
- Deelder, A.M.
- Committee
- Hokke, C.H.; Slagboom, S.E.; Fahey, R.; Lefeber, D.J.
- Qualification
- Doctor (dr.)
- Awarding Institution
- Medicine, Leiden University Medical Center (LUMC) , Leiden University
- Date
- 2018-04-05
- ISBN (print)
- 9789462958913