Cited by 43Microfluidic and Capillary Electrophoresis ApplicationsGlycosylation and Glycoproteins ResearchMass Spectrometry Techniques and Applications

Coupling porous sheathless interface MS with transient‐ITP in neutral capillaries for improved sensitivity in glycopeptide analysis

Heemskerk, Anthonius A. M., Wuhrer, Manfred, Busnel, Jean‐Marc, Koeleman, Carolien A. M., Selman, Maurice H. J., Vidarsson, Gestur, Kapur, Rick, Schoenmaker, Bart +3 more·2013·ELECTROPHORESIS

Abstract

I g G antibodies are modulated in their function by the specific structure of the N‐glycans attached to their F c (fragment crystallizable) portions. However, the glycosylation analysis of antigen‐specific I g G s is a challenging task as antibody levels to a given antigen only represent a fraction of the total I g G levels. Here, we investigated the use of a transient‐ITP (t‐ITP)—MS method for highly sensitive I g G 1 glycosylation profiling as a complementary method to a high‐throughput nano‐RPLC‐MS method. It was found that t‐ITP‐CZE using neutrally coated separation capillaries with a large volume injection (37% of capillary volume) and interfaced to MS with a sheathless porous sprayer yielded a 40‐fold increase in sensitivity for I g G 1 F c glycopeptide analysis when compared to the conventional strategy. Furthermore, the glycoform profiles found with the t‐ITP‐CZE strategy were comparable to those from nano‐RPLC‐MS. In conclusion, the use of the highly sensitive t‐ITP‐CZE‐MS method will provide information on I g G F c glycosylation for those samples with IgG1 concentrations below the LOD s of the conventional method.

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Authors
Heemskerk, A. A. M., Wuhrer, M., Busnel, J., Koeleman, C. A. M., Selman, M. H. J., Vidarsson, G., Kapur, R., Schoenmaker, B., Derks, R. J. E., Deelder, A. M., & Mayboroda, O. A.
Affiliations
  • Leiden University Medical Center (NL)
  • Sanquin (NL)
Corresponding author
Heemskerk, Anthonius A. M.
Venue
ELECTROPHORESIS
Publisher
Wiley
Published
2013-01-03
Volume
34
Issue
3
Pages
383-387
ISSN
  • 0173-0835 (ISSN-L)
  • 1522-2683
OpenAlex
W2019249724
Cited by
43
References
26
Citations by year
2022: 3 · 2021: 2 · 2020: 3 · 2019: 6 · 2018: 3 · 2017: 3 · 2016: 5 · 2015: 3 · 2014: 8 · 2013: 6 · 2012: 1
FWCI
3.28
Type
journal article
Language
en
Open access
closed
Locations
  • Electrophoresis (publishedVersion)
  • PubMed (publishedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
  • Leiden Repository (Leiden University) (submittedVersion)
  • Pure Amsterdam UMC (submittedVersion)
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › Microfluidic and Capillary Electrophoresis Applications
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Glycosylation and Glycoproteins Research
  • Physical Sciences › Chemistry › Spectroscopy › Mass Spectrometry Techniques and Applications
Keywords
capillary zone electrophoresis, N-glycan profiling, glycopeptide analysis, large volume injection, antibody glycosylation, detection sensitivity
MeSH terms
Glycopeptides, Humans, Immunoglobulin G, Immunoglobulin Fc Fragments, Sensitivity and Specificity, Electrophoresis, Capillary, Spectrometry, Mass, Electrospray Ionization

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