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Issue 15, 2014
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Recent advances in the analysis of therapeutic proteins by capillary and microchip electrophoresis

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Abstract

The development of therapeutic proteins and peptides is an expensive and time-intensive process. Biologics, which have become a multi-billion dollar industry, are chemically complex products that require constant observation during each stage of development and production. Post-translational modifications, along with chemical and physical degradation from oxidation, deamidation, and aggregation, lead to high levels of heterogeneity that affect drug quality and efficacy. The various separation modes of capillary electrophoresis (CE) are commonly utilized to perform quality control and assess protein heterogeneity. This review attempts to highlight the most recent developments and applications of CE separation techniques for the characterization of protein and peptide therapeutics by focusing on papers accepted for publication in the in the two-year period between January 2012 and December 2013. The separation principles and technological advances of CE, capillary gel electrophoresis, capillary isoelectric focusing, capillary electrochromatography and CE-mass spectrometry are discussed, along with exciting new applications of these techniques to relevant pharmaceutical issues. Also included is a small selection of papers on microchip electrophoresis to show the direction this field is moving with regard to the development of inexpensive and portable analysis systems for on-site, high-throughput analysis.

Graphical abstract: Recent advances in the analysis of therapeutic proteins by capillary and microchip electrophoresis

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Article information


Submitted
24 Feb 2014
Accepted
01 May 2014
First published
13 May 2014

Anal. Methods, 2014,6, 5427-5449
Article type
Critical Review
Author version available

Recent advances in the analysis of therapeutic proteins by capillary and microchip electrophoresis

J. S. Creamer, N. J. Oborny and S. M. Lunte, Anal. Methods, 2014, 6, 5427
DOI: 10.1039/C4AY00447G

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