Lambiase, G., Inman, S.E., Muroni, M. et al. (3 more authors) (2022) High-throughput multiplex analysis of mAb aggregates and charge variants by automated two-dimensional size exclusion-cation exchange chromatography coupled to mass spectrometry. Journal of Chromatography A, 1670. 462944. ISSN 0021-9673
Abstract
Monoclonal antibodies (mAbs) are extremely complex due to the presence of structural modifications resulting from enzymatic and chemical reactions such as glycosylation, glycation, deamidation, isomerisation, oxidation, aggregation and fragmentation. Size and charge variants analysis are carried out from the early stages of drug development throughout product lifetime to investigate product degradation pathways and optimise process conditions. However, conventional analytical workstreams for size and charge variant characterization are both time and sample demanding, requiring the application of multiple analytical methods. This study presents the development of a novel 2D-LC/MS approach combining both aggregate and charge variant profiling of a mAb candidate in a single method. Aggregate quantification was performed in the first dimension (1D) by size exclusion chromatography SEC, followed by online fraction transfer of the monomer peak to the second dimension (2D) by a heart-cutting for charge variant analysis by cation exchange chromatography (CEX). Aiming to maximise the information obtained from minimal sample and time required for analysis, a salt-based separation with UV detection was developed for supporting the processing of a large number of samples to facilitate high-throughput process development (HTPD). In addition, a mass spectrometry (MS) compatible SEC-CEX separation was developed enabling online charge variant peak identification. This study presented the ability to multiplex mAb size and charge variants analysis by coupling SEC with CEX in a 2D-LC set-up. To date, this is the first 2D SEC-CEX-UV(-MS) application for intact mAb analysis.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2022 Elsevier B.V. |
Keywords: | Biopharmaceuticals development; Multidimensional liquid chromatography-mass spectrometry; Multiplex analysis; Protein aggregation; Protein charge variants; High throughput analysis |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Chemical and Biological Engineering (Sheffield) |
Funding Information: | Funder Grant number MEDIMMUNE LIMITED UNSPECIFIED MEDIMMUNE LIMITED UNSPECIFIED BIOTECHNOLOGY AND BIOLOGICAL SCIENCES RESEARCH COUNCIL BB/M012166/1 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 03 Nov 2022 15:29 |
Last Modified: | 03 Nov 2022 15:29 |
Status: | Published |
Publisher: | Elsevier BV |
Refereed: | Yes |
Identification Number: | 10.1016/j.chroma.2022.462944 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:192445 |