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Nickerson JL, Baghalabadi V, Rajendran SRCK, Jakubec PJ, Said H, McMillen TS, Dang Z, Doucette AA. Recent advances in top-down proteome sample processing ahead of MS analysis. MASS SPECTROMETRY REVIEWS 2023; 42:457-495. [PMID: 34047392 DOI: 10.1002/mas.21706] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 04/21/2021] [Accepted: 05/06/2021] [Indexed: 06/12/2023]
Abstract
Top-down proteomics is emerging as a preferred approach to investigate biological systems, with objectives ranging from the detailed assessment of a single protein therapeutic, to the complete characterization of every possible protein including their modifications, which define the human proteoform. Given the controlling influence of protein modifications on their biological function, understanding how gene products manifest or respond to disease is most precisely achieved by characterization at the intact protein level. Top-down mass spectrometry (MS) analysis of proteins entails unique challenges associated with processing whole proteins while maintaining their integrity throughout the processes of extraction, enrichment, purification, and fractionation. Recent advances in each of these critical front-end preparation processes, including minimalistic workflows, have greatly expanded the capacity of MS for top-down proteome analysis. Acknowledging the many contributions in MS technology and sample processing, the present review aims to highlight the diverse strategies that have forged a pathway for top-down proteomics. We comprehensively discuss the evolution of front-end workflows that today facilitate optimal characterization of proteoform-driven biology, including a brief description of the clinical applications that have motivated these impactful contributions.
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Affiliation(s)
| | - Venus Baghalabadi
- Department of Chemistry, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Subin R C K Rajendran
- Department of Chemistry, Dalhousie University, Halifax, Nova Scotia, Canada
- Verschuren Centre for Sustainability in Energy and the Environment, Sydney, Nova Scotia, Canada
| | - Philip J Jakubec
- Department of Chemistry, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Hammam Said
- Department of Chemistry, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Teresa S McMillen
- Department of Chemistry, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Ziheng Dang
- Department of Chemistry, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Alan A Doucette
- Department of Chemistry, Dalhousie University, Halifax, Nova Scotia, Canada
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2
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Liu Q, Martínez-Jarquín S, Ge W, Zenobi R. Development of a 3D-Printed Ionization Source for Single-Cell Analysis. Anal Chem 2023; 95:1823-1828. [PMID: 36622658 DOI: 10.1021/acs.analchem.2c04279] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Understanding the physiologies and pathologies of diseases requires a thorough understanding of metabolic heterogeneity in cells. This technical note presents a 3D printing technology for manufacturing an ionization source that is specially adapted for mass spectrometry-based single-cell analysis. This all-in-one 3D-printed electrospray ionization source integrates the sample introduction, metabolite extraction, and ionization into one device, simplifying the process of single-cell analysis and improving the reproducibility of the measurement. We successfully used it for high-throughput analysis of three types of cancer cells (around 17 cells/min) and used the t-distributed stochastic neighbor embedding algorithm to distinguish different cell types based on detected metabolites. By simply adjusting the printing parameters of the 3D-printed ionization source, it can be applied to cells with different sizes. The proposed 3D-printed ionization source promises to open new possibilities for single-cell analysis.
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Affiliation(s)
- Qinlei Liu
- Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich CH-8093, Switzerland
| | | | - Wenjie Ge
- Department of Biology, ETH Zurich, CH-8093 Zurich, Switzerland
| | - Renato Zenobi
- Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich CH-8093, Switzerland
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3
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Stutz H. Advances and applications of electromigration methods in the analysis of therapeutic and diagnostic recombinant proteins – A Review. J Pharm Biomed Anal 2022; 222:115089. [DOI: 10.1016/j.jpba.2022.115089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 09/28/2022] [Accepted: 09/29/2022] [Indexed: 11/29/2022]
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4
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Proteomic Discovery and Validation of Novel Fluid Biomarkers for Improved Patient Selection and Prediction of Clinical Outcomes in Alzheimer’s Disease Patient Cohorts. Proteomes 2022; 10:proteomes10030026. [PMID: 35997438 PMCID: PMC9397030 DOI: 10.3390/proteomes10030026] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 07/13/2022] [Accepted: 07/23/2022] [Indexed: 01/25/2023] Open
Abstract
Alzheimer’s disease (AD) is an irreversible neurodegenerative disease characterized by progressive cognitive decline. The two cardinal neuropathological hallmarks of AD include the buildup of cerebral β amyloid (Aβ) plaques and neurofibrillary tangles of hyperphosphorylated tau. The current disease-modifying treatments are still not effective enough to lower the rate of cognitive decline. There is an urgent need to identify early detection and disease progression biomarkers that can facilitate AD drug development. The current established readouts based on the expression levels of amyloid beta, tau, and phospho-tau have shown many discrepancies in patient samples when linked to disease progression. There is an urgent need to identify diagnostic and disease progression biomarkers from blood, cerebrospinal fluid (CSF), or other biofluids that can facilitate the early detection of the disease and provide pharmacodynamic readouts for new drugs being tested in clinical trials. Advances in proteomic approaches using state-of-the-art mass spectrometry are now being increasingly applied to study AD disease mechanisms and identify drug targets and novel disease biomarkers. In this report, we describe the application of quantitative proteomic approaches for understanding AD pathophysiology, summarize the current knowledge gained from proteomic investigations of AD, and discuss the development and validation of new predictive and diagnostic disease biomarkers.
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Gong Y, Qin S, Dai L, Tian Z. The glycosylation in SARS-CoV-2 and its receptor ACE2. Signal Transduct Target Ther 2021; 6:396. [PMID: 34782609 PMCID: PMC8591162 DOI: 10.1038/s41392-021-00809-8] [Citation(s) in RCA: 102] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 10/10/2021] [Accepted: 10/24/2021] [Indexed: 02/05/2023] Open
Abstract
Coronavirus disease 2019 (COVID-19), a highly infectious disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has infected more than 235 million individuals and led to more than 4.8 million deaths worldwide as of October 5 2021. Cryo-electron microscopy and topology show that the SARS-CoV-2 genome encodes lots of highly glycosylated proteins, such as spike (S), envelope (E), membrane (M), and ORF3a proteins, which are responsible for host recognition, penetration, binding, recycling and pathogenesis. Here we reviewed the detections, substrates, biological functions of the glycosylation in SARS-CoV-2 proteins as well as the human receptor ACE2, and also summarized the approved and undergoing SARS-CoV-2 therapeutics associated with glycosylation. This review may not only broad the understanding of viral glycobiology, but also provide key clues for the development of new preventive and therapeutic methodologies against SARS-CoV-2 and its variants.
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Affiliation(s)
- Yanqiu Gong
- National Clinical Research Center for Geriatrics and Department of General Practice, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center of Biotherapy, 610041, Chengdu, China
| | - Suideng Qin
- School of Chemical Science & Engineering, Shanghai Key Laboratory of Chemical Assessment and Sustainability, Tongji University, 200092, Shanghai, China
| | - Lunzhi Dai
- National Clinical Research Center for Geriatrics and Department of General Practice, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center of Biotherapy, 610041, Chengdu, China.
| | - Zhixin Tian
- School of Chemical Science & Engineering, Shanghai Key Laboratory of Chemical Assessment and Sustainability, Tongji University, 200092, Shanghai, China.
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6
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Kuzyk VO, Somsen GW, Haselberg R. CE-MS for Proteomics and Intact Protein Analysis. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1336:51-86. [PMID: 34628627 DOI: 10.1007/978-3-030-77252-9_4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
This chapter aims to explore various parameters involved in achieving high-end capillary electrophoresis hyphenated to mass spectrometry (CE-MS) analysis of proteins, peptides, and their posttranslational modifications. The structure of the topics discussed in this book chapter is conveniently mapped on the scheme of the CE-MS system itself, starting from sample preconcentration and injection techniques and finishing with mass analyzer considerations. After going through the technical considerations, a variety of relevant applications for this analytical approach are presented, including posttranslational modifications analysis, clinical biomarker discovery, and its growing use in the biotechnological industry.
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Affiliation(s)
- Valeriia O Kuzyk
- Division of Bioanalytical Chemistry, AIMMS: Amsterdam Institute of Molecular and Life Sciences, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Govert W Somsen
- Division of Bioanalytical Chemistry, AIMMS: Amsterdam Institute of Molecular and Life Sciences, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Rob Haselberg
- Division of Bioanalytical Chemistry, AIMMS: Amsterdam Institute of Molecular and Life Sciences, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.
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7
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François YN, Biacchi M, Gahoual R, Vezin A, Pansanel J. CEToolbox: Specialized calculator for capillary electrophoresis users as an android application. Electrophoresis 2021; 42:1431-1435. [PMID: 33890318 DOI: 10.1002/elps.202100036] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 04/05/2021] [Accepted: 04/12/2021] [Indexed: 11/10/2022]
Abstract
CE has been demonstrated to be a useful and powerful separation method for the characterization of charged and neutral molecules. Since the end of the 1980s and the development of the first commercialized CE device, the use of this separation method has continued to grow for academic and industrial research involving inexorably increasing of the number of CE users. Whatever the application domain, each CE user is daily confronted to the same problems often based on basic calculations of separation properties. In order to help the community of CE users to get quickly and easily a lot of information, and desiring to provide a tool running on mobile platforms, CEToolbox has been developed as a free Android application. Within few clicks, CEToolbox offers extensive injection information as injected volume, total capillary volume, proportion and amount of injected sample, rinsing time, and electrical field. Moreover, three additional tabs allow to obtain the calculation of the viscosity and the conductivity of BGE, and the separation flow rates. Finally, a last tab is dedicated to the calculation of electroosmotic mobility and effective mobilities for a maximum of 20 compounds. CEToolbox, which can be downloaded for free on Google and F-Droid application stores, was developed to simplify the daily of CE users regardless of the CE devices.
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Affiliation(s)
- Yannis Nicolas François
- Laboratoire de Spectrométrie de Masse des Interactions et des Systèmes (LSMIS) UMR 7140 (Unistra-CNRS), Université de Strasbourg, Strasbourg, France
| | - Michael Biacchi
- Laboratoire de Spectrométrie de Masse des Interactions et des Systèmes (LSMIS) UMR 7140 (Unistra-CNRS), Université de Strasbourg, Strasbourg, France
| | - Rabah Gahoual
- Université de Paris, Faculté de sciences pharmaceutiques et biologiques, Unité de Technologies Chimiques et Biologiques pour la Santé (UTCBS), CNRSUMR8258, Paris, Inserm U1022, France
| | - Aurélien Vezin
- Laboratoire de Spectrométrie de Masse des Interactions et des Systèmes (LSMIS) UMR 7140 (Unistra-CNRS), Université de Strasbourg, Strasbourg, France
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8
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Macedo-da-Silva J, Santiago VF, Rosa-Fernandes L, Marinho CRF, Palmisano G. Protein glycosylation in extracellular vesicles: Structural characterization and biological functions. Mol Immunol 2021; 135:226-246. [PMID: 33933815 DOI: 10.1016/j.molimm.2021.04.017] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 04/13/2021] [Accepted: 04/20/2021] [Indexed: 02/07/2023]
Abstract
Extracellular vesicles (EVs) are lipid bilayer-enclosed particles involved in intercellular communication, delivery of biomolecules from donor to recipient cells, cellular disposal and homeostasis, potential biomarkers and drug carriers. The content of EVs includes DNA, lipids, metabolites, proteins, and microRNA, which have been studied in various diseases, such as cancer, diabetes, pregnancy, neurodegenerative, and cardiovascular disorders. EVs are enriched in glycoconjugates and exhibit specific glycosignatures. Protein glycosylation is a co- and post-translational modification (PTM) that plays an important role in the expression and function of exosomal proteins. N- and O-linked protein glycosylation has been mapped in exosomal proteins. The purpose of this review is to highlight the importance of glycosylation in EVs proteins. Initially, we describe the main PTMs in EVs with a focus on glycosylation. Then, we explore glycan-binding proteins describing the main findings of studies that investigated the glycosylation of EVs in cancer, pregnancy, infectious diseases, diabetes, mental disorders, and animal fluids. We have highlighted studies that have developed innovative methods for studying the content of EVs. In addition, we present works related to lipid glycosylation. We explored the content of studies deposited in public databases, such as Exocarta and Vesiclepedia. Finally, we discuss analytical methods for structural characterization of glycoconjugates and present an overview of the critical points of the study of glycosylation EVs, as well as perspectives in this field.
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Affiliation(s)
- Janaina Macedo-da-Silva
- Department of Parasitology, Institute of Biomedical Sciences, University of Sao Paulo, Brazil
| | - Verônica F Santiago
- Department of Parasitology, Institute of Biomedical Sciences, University of Sao Paulo, Brazil
| | - Livia Rosa-Fernandes
- Department of Parasitology, Institute of Biomedical Sciences, University of Sao Paulo, Brazil
| | - Claudio R F Marinho
- Department of Parasitology, Institute of Biomedical Sciences, University of Sao Paulo, Brazil
| | - Giuseppe Palmisano
- Department of Parasitology, Institute of Biomedical Sciences, University of Sao Paulo, Brazil.
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9
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HIOKI M, KOBAYASHI H, KINOSHITA M, YAMAMOTO S, SUZUKI S. Chromatographic Performance of an Amine/amino-bonded Column and a Monolithic Reversed-Phase Column for the Separation of Fluorescently Labeled Glycoprotein Glycans. CHROMATOGRAPHY 2021. [DOI: 10.15583/jpchrom.2021.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Maho HIOKI
- Faculty of Pharmaceutical Sciences, Kindai University
| | | | | | | | - Shigeo SUZUKI
- Faculty of Pharmaceutical Sciences, Kindai University
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10
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Shen X, Yang Z, McCool EN, Lubeckyj RA, Chen D, Sun L. Capillary zone electrophoresis-mass spectrometry for top-down proteomics. Trends Analyt Chem 2019; 120:115644. [PMID: 31537953 PMCID: PMC6752746 DOI: 10.1016/j.trac.2019.115644] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Mass spectrometry (MS)-based top-down proteomics characterizes complex proteomes at the intact proteoform level and provides an accurate picture of protein isoforms and protein post-translational modifications in the cell. The progress of top-down proteomics requires novel analytical tools with high peak capacity for proteoform separation and high sensitivity for proteoform detection. The requirements have made capillary zone electrophoresis (CZE)-MS an attractive approach for advancing large-scale top-down proteomics. CZE has achieved a peak capacity of 300 for separation of complex proteoform mixtures. CZE-MS has shown drastically better sensitivity than commonly used reversed-phase liquid chromatography (RPLC)-MS for proteoform detection. The advanced CZE-MS identified 6,000 proteoforms of nearly 1,000 proteoform families from a complex proteome sample, which represents one of the largest top-down proteomic datasets so far. In this review, we focus on the recent progress in CZE-MS-based top-down proteomics and provide our perspectives about its future directions.
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Affiliation(s)
- Xiaojing Shen
- Department of Chemistry, Michigan State University, 578 S Shaw Lane, East Lansing, Michigan 48824, United States
| | - Zhichang Yang
- Department of Chemistry, Michigan State University, 578 S Shaw Lane, East Lansing, Michigan 48824, United States
| | - Elijah N. McCool
- Department of Chemistry, Michigan State University, 578 S Shaw Lane, East Lansing, Michigan 48824, United States
| | - Rachele A. Lubeckyj
- Department of Chemistry, Michigan State University, 578 S Shaw Lane, East Lansing, Michigan 48824, United States
| | - Daoyang Chen
- Department of Chemistry, Michigan State University, 578 S Shaw Lane, East Lansing, Michigan 48824, United States
| | - Liangliang Sun
- Department of Chemistry, Michigan State University, 578 S Shaw Lane, East Lansing, Michigan 48824, United States
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11
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Gomes FP, Yates JR. Recent trends of capillary electrophoresis-mass spectrometry in proteomics research. MASS SPECTROMETRY REVIEWS 2019; 38:445-460. [PMID: 31407381 PMCID: PMC6800771 DOI: 10.1002/mas.21599] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Progress in proteomics research has led to a demand for powerful analytical tools with high separation efficiency and sensitivity for confident identification and quantification of proteins, posttranslational modifications, and protein complexes expressed in cells and tissues. This demand has significantly increased interest in capillary electrophoresis-mass spectrometry (CE-MS) in the past few years. This review provides highlights of recent advances in CE-MS for proteomics research, including a short introduction to top-down mass spectrometry and native mass spectrometry (native MS), as well as a detailed overview of CE methods. Both the potential and limitations of these methods for the analysis of proteins and peptides in synthetic and biological samples and the challenges of CE methods are discussed, along with perspectives about the future direction of CE-MS. @ 2019 Wiley Periodicals, Inc. Mass Spec Rev 00:1-16, 2019.
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Affiliation(s)
| | - John R. Yates
- Correspondent author: , Phone number: (858) 784-8862, Departments of Molecular Medicine and Neurobiology, 10550 North Torrey Pines Road, SR302B, The Scripps Research Institute, La Jolla, CA 92037
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12
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Camperi J, Pichon V, Delaunay N. Separation methods hyphenated to mass spectrometry for the characterization of the protein glycosylation at the intact level. J Pharm Biomed Anal 2019; 178:112921. [PMID: 31671335 DOI: 10.1016/j.jpba.2019.112921] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 10/07/2019] [Accepted: 10/09/2019] [Indexed: 01/26/2023]
Abstract
Glycosylation is one of the most common post-translational modifications of proteins that affects their biological activity, solubility, and half-life. Therefore, its characterization is of great interest in proteomic, particularly from a diagnostic and therapeutic point of view. However, the number and type of glycosylation sites, the degree of site occupancy and the different possible structures of glycans can lead to a very large number of isoforms for a given protein, called glycoforms. The identification of these glycoforms constitutes an important analytical challenge. Indeed, to attempt to characterize all of them, it is necessary to develop efficient separation methods associated with a sensitive and informative detection mode, such as mass spectrometry (MS). Most analytical methods are based on bottom-up proteomics, which consists in the analysis of the protein at the glycopeptides level after its digestion. Even if this approach provides essential information, including the localization and composition of glycans on the protein, it is also characterized by a loss of information on macro-heterogeneity, i.e. the nature of the glycans present on a given glycoform. The analysis of glycoforms at the intact level can overcome this disadvantage. The aim of this review is to detail the state-of-the art of separation methods that can be easily hyphenated with MS for the characterization of protein glycosylation at the intact level. The different electrophoretic and chromatographic approaches are discussed in detail. The miniaturization of these separation methods is also discussed with their potential applications. While the first studies focused on the development and optimization of the separation step to achieve high resolution between isoforms, the recent ones are much more application-oriented, such as clinical diagnosis, quality control, and glycoprotein monitoring in formulations or biological samples.
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Affiliation(s)
- Julien Camperi
- Laboratory of Analytical, Bioanalytical Sciences and Miniaturization, UMR CBI 8231 CNRS - ESPCI Paris, PSL University, Paris, France
| | - Valerie Pichon
- Laboratory of Analytical, Bioanalytical Sciences and Miniaturization, UMR CBI 8231 CNRS - ESPCI Paris, PSL University, Paris, France; Sorbonne Université, Paris, France
| | - Nathalie Delaunay
- Laboratory of Analytical, Bioanalytical Sciences and Miniaturization, UMR CBI 8231 CNRS - ESPCI Paris, PSL University, Paris, France.
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13
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Yang X, Bartlett MG. Glycan analysis for protein therapeutics. J Chromatogr B Analyt Technol Biomed Life Sci 2019; 1120:29-40. [PMID: 31063953 DOI: 10.1016/j.jchromb.2019.04.031] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 04/10/2019] [Accepted: 04/15/2019] [Indexed: 01/07/2023]
Abstract
Glycosylation can be a critical quality attribute for protein therapeutics due to its extensive impact on product safety and efficacy. Glycan characterization is important in the process of protein drug development, from early stage candidate selection to late stage regulatory submission. It is also an indispensable part in the evaluation of biosimilarity. This review discusses the effects of glycosylation on the stability and activity of protein therapeutics, regulatory considerations corresponding to manufacturing and structural characterization of glycosylated protein therapeutics, and focuses on mass spectrometry compatible separation methods for glycan characterization of protein therapeutics. These approaches include hydrophilic interaction liquid chromatography, reversed-phase liquid chromatography, capillary electrophoresis, porous graphitic carbon liquid chromatography and two-dimensional liquid chromatography. Advances and novelties in each separation method, as well as associated challenges and limitations, are discussed at the released glycan, glycopeptide, glycoprotein subunit and intact glycoprotein levels.
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Affiliation(s)
- Xiangkun Yang
- Department of Pharmaceutical and Biomedical Sciences, College of Pharmacy, University of Georgia, Athens, GA 30602-2352, United States of America
| | - Michael G Bartlett
- Department of Pharmaceutical and Biomedical Sciences, College of Pharmacy, University of Georgia, Athens, GA 30602-2352, United States of America.
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14
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Camperi J, De Cock B, Pichon V, Combes A, Guibourdenche J, Fournier T, Vander Heyden Y, Mangelings D, Delaunay N. First characterizations by capillary electrophoresis of human Chorionic Gonadotropin at the intact level. Talanta 2019; 193:77-86. [DOI: 10.1016/j.talanta.2018.09.095] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 09/20/2018] [Accepted: 09/24/2018] [Indexed: 12/15/2022]
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15
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Abdul Keyon AS, Miskam M, Ishak NS, Mahat NA, Mohamed Huri MA, Abdul Wahab R, Chandren S, Abdul Razak FI, Ng NT, Ali TG. Capillary electrophoresis for the analysis of antidepressant drugs: A review. J Sep Sci 2019; 42:906-924. [PMID: 30605233 DOI: 10.1002/jssc.201800859] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Revised: 12/05/2018] [Accepted: 12/06/2018] [Indexed: 11/11/2022]
Abstract
Depression is a common mental disorder that may lead to major mental health problems, and antidepressant drugs have been used as a treatment of choice to mitigate symptoms of major depressive disorders by ameliorating the chemical imbalances of neurotransmitters in brain. Since abusing antidepressant drugs such as selective serotonin reuptake inhibitors and tricyclic antidepressant drugs can cause severe adverse effects, continuous toxicological monitoring of the parent compounds as well as their metabolites using numerous analytical methods appears pertinent. Among them, capillary electrophoresis has been popularly utilized since the method has a lot of advantages viz. using small amounts of sample and solvents, ease of operation, and rapid analysis. This review paper brings a survey of more than 30 papers on capillary electrophoresis of antidepressant drugs published approximately from 1999 until 2018. It focuses on the reported capillary electrophoresis techniques and their applications and challenges for determining antidepressant drugs and their metabolites. It is organized according to the commonly used capillary zone electrophoresis method, followed by non-aqueous capillary electrophoresis and micellar electrokinetic chromatography, with details on breakthrough findings. Where available, information is given about the background electrolyte used, detector utilized, and sensitivity obtained.
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Affiliation(s)
- Aemi Syazwani Abdul Keyon
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, Johor Bahru, Johor, Malaysia.,Centre for Sustainable Nanomaterials, Ibnu Sina Institute for Scientific and industrial Research, Universiti Teknologi Malaysia, Johor Bahru, Johor, Malaysia
| | | | - Nur Syazwani Ishak
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, Johor Bahru, Johor, Malaysia
| | - Naji Arafat Mahat
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, Johor Bahru, Johor, Malaysia.,Centre for Sustainable Nanomaterials, Ibnu Sina Institute for Scientific and industrial Research, Universiti Teknologi Malaysia, Johor Bahru, Johor, Malaysia
| | - Mohamad Afiq Mohamed Huri
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, Johor Bahru, Johor, Malaysia
| | - Roswanira Abdul Wahab
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, Johor Bahru, Johor, Malaysia
| | - Sheela Chandren
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, Johor Bahru, Johor, Malaysia
| | - Fazira Ilyana Abdul Razak
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, Johor Bahru, Johor, Malaysia
| | - Nyuk-Ting Ng
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, Johor Bahru, Johor, Malaysia
| | - Timothy Gandu Ali
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, Johor Bahru, Johor, Malaysia
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Romson J, Jacksén J, Emmer Å. An automated system for CE-MALDI and on-target digestion under a fluorocarbon lid applied on spermatophore proteins from Pieris napi. J Chromatogr B Analyt Technol Biomed Life Sci 2019; 1104:228-233. [DOI: 10.1016/j.jchromb.2018.11.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 10/18/2018] [Accepted: 11/15/2018] [Indexed: 01/27/2023]
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17
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Fast, selective and quantitative protein profiling of adenovirus-vector based vaccines by ultra-performance liquid chromatography. J Chromatogr A 2018; 1581-1582:25-32. [PMID: 30389208 PMCID: PMC7094600 DOI: 10.1016/j.chroma.2018.10.045] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 10/19/2018] [Accepted: 10/22/2018] [Indexed: 11/22/2022]
Abstract
A validated method for quantitative protein profiling in adenovirus-based vaccines. 14 Adenovirus proteins baseline separated within 17 min by RP-UPLC. Adenovirus-based samples directly injected, needing no sample pretreatment. The method can detect and quantify protein degradants.
A method for the quantitative determination of the protein composition of adenovirus-vector based vaccines was developed. The final method used RP-UPLC with UV absorbance detection, a C4 column (300 Å, 1.7 μm, 2.1 × 150 mm), and a water- acetonitrile (ACN) gradient containing trifluoroacetic acid (TFA) as ion-pairing agent. The chromatographic resolution between the various adenovirus proteins was optimized by studying the effect of the TFA concentration and the column temperature, applying a full factorial design of experiments. A reproducible baseline separation of all relevant adenovirus proteins could be achieved within 17 min run time. Samples containing adenovirus particles could be directly injected into the UPLC system without sample pretreatment. The viruses reproducibly dissociate into proteins in the UPLC system upon contact with the mobile phase containing ACN. The new RP-UPLC method was successfully validated for protein profiling and relative quantification of proteins in vaccine products based on adenovirus vector types 26 and 35. The intermediate precision of the relative peak areas of all proteins was between 1% and 14% RSD, except for the peak assigned to protein V (26% RSD). The method proved to be stability indicating with respect to thermal and oxidation stress of the adenovirus-vector based vaccine and was successfully implemented for the characterization of adenovirus-based products.
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18
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Holtkamp HU, Hartinger CG. Advanced metallomics methods in anticancer metallodrug mode of action studies. Trends Analyt Chem 2018. [DOI: 10.1016/j.trac.2017.09.023] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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19
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Gusenkov S, Stutz H. Top-down and bottom-up characterization of nitrated birch pollen allergen Bet v 1a with CZE hyphenated to an Orbitrap mass spectrometer. Electrophoresis 2018; 39:1190-1200. [PMID: 29389018 PMCID: PMC6175448 DOI: 10.1002/elps.201700413] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Revised: 01/19/2018] [Accepted: 01/19/2018] [Indexed: 11/19/2022]
Abstract
Tyrosine (Tyr) residues of the major pollen allergen of birch Betula verrucosa, Bet v 1a, were nitrated by peroxynitrite. This modification enhances the allergenicity. Modified tyrosines were identified by analyzing intact allergen variants in combination with top‐down and bottom‐up approaches. Therefore, a laboratory‐built sheath‐liquid assisted ESI interface was applied for hyphenation of CE to an Orbitrap mass spectrometer to localize individual nitration sites. The major focus was on identification of primary nitration sites. The top‐down approach unambiguously identified Tyr 5 as the most prominent modification site. Fragments from the allergen core and the C‐terminal part carried up to three potential nitration sites, respectively. Thus, a bottom‐up approach with tryptic digest was used as a complementary strategy which allowed for the unambiguous localization of nitration sites within the respective peptides. Nitration propensity for individual Tyr residues was addressed by comparison of MS signals of nitrated peptides relative to all cognates of homolog primary sequence. Combined data identified surface exposed Tyr 5 and Tyr 66 as major nitration sites followed by less accessible Tyr 158 whereas Tyr 81, 83 and 150 possess a lower nitration tendency and are apparently modified in variants with higher nitration levels.
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Affiliation(s)
- Sergey Gusenkov
- Department of Biosciences, University of Salzburg, Salzburg, Austria
| | - Hanno Stutz
- Department of Biosciences, University of Salzburg, Salzburg, Austria
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20
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Quirino JP. A cationic β‐cyclodextrin as a dynamic coating for the separation of proteins in capillary electrophoresis. J Sep Sci 2017; 40:4835-4838. [DOI: 10.1002/jssc.201700610] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2017] [Revised: 10/10/2017] [Accepted: 10/11/2017] [Indexed: 01/07/2023]
Affiliation(s)
- Joselito P. Quirino
- Australian Centre for Research on Separation Science (ACROSS), School of Physical Sciences—Chemistry University of Tasmania Sandy Bay Tasmania Australia
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21
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O'Flaherty R, Trbojević-Akmačić I, Greville G, Rudd PM, Lauc G. The sweet spot for biologics: recent advances in characterization of biotherapeutic glycoproteins. Expert Rev Proteomics 2017; 15:13-29. [PMID: 29130774 DOI: 10.1080/14789450.2018.1404907] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
INTRODUCTION Glycosylation is recognized as a Critical Quality Attribute for therapeutic glycoproteins such as monoclonal antibodies, fusion proteins and therapeutic replacement enzymes. Hence, efficient and quantitative glycan analysis techniques have been increasingly important for their discovery, development and quality control. The aim of this review is to highlight relevant and recent advances in analytical technologies for characterization of biotherapeutic glycoproteins. Areas covered: The review gives an overview of the glycosylation trends of biotherapeutics approved in 2016 and 2017 by FDA. It describes current and novel analytical technologies for characterization of therapeutic glycoproteins and is explored in the context of released glycan, glycopeptide or intact glycoprotein analysis. Ultra performance liquid chromatography, mass spectrometry and capillary electrophoresis technologies are explored in this context. Expert commentary: There is a need for the biopharmaceutical industry to incorporate novel state of the art analytical technologies into existing and new therapeutic glycoprotein workflows for safer and more efficient biotherapeutics and for the improvement of future biotherapeutic design. Additionally, at present, there is no 'gold-standard' approach to address all the regulatory requirements and as such this will involve the use of orthogonal glycoanalytical technologies with a view to gain diagnostic information about the therapeutic glycoprotein.
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Affiliation(s)
- Róisín O'Flaherty
- a NIBRT GlycoScience Group , National Institute for Bioprocessing, Research and Training , Blackrock, Co. Dublin , Ireland
| | | | - Gordon Greville
- a NIBRT GlycoScience Group , National Institute for Bioprocessing, Research and Training , Blackrock, Co. Dublin , Ireland
| | - Pauline M Rudd
- a NIBRT GlycoScience Group , National Institute for Bioprocessing, Research and Training , Blackrock, Co. Dublin , Ireland
| | - Gordan Lauc
- b Genos Glycoscience Research Laboratory , 10000 , Zagreb , Croatia.,c Faculty of Pharmacy and Biochemistry , University of Zagreb , Zagreb , Croatia
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22
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Lubeckyj RA, McCool EN, Shen X, Kou Q, Liu X, Sun L. Single-Shot Top-Down Proteomics with Capillary Zone Electrophoresis-Electrospray Ionization-Tandem Mass Spectrometry for Identification of Nearly 600 Escherichia coli Proteoforms. Anal Chem 2017; 89:12059-12067. [PMID: 29064224 DOI: 10.1021/acs.analchem.7b02532] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Capillary zone electrophoresis-electrospray ionization-tandem mass spectrometry (CZE-ESI-MS/MS) has been recognized as an invaluable platform for top-down proteomics. However, the scale of top-down proteomics using CZE-MS/MS is still limited due to the low loading capacity and narrow separation window of CZE. In this work, for the first time we systematically evaluated the dynamic pH junction method for focusing of intact proteins during CZE-MS. The optimized dynamic pH junction-based CZE-MS/MS approached a 1 μL loading capacity, 90 min separation window, and high peak capacity (∼280) for characterization of an Escherichia coli proteome. The results represent the largest loading capacity and the highest peak capacity of CZE for top-down characterization of complex proteomes. Single-shot CZE-MS/MS identified about 2800 proteoform-spectrum matches, nearly 600 proteoforms, and 200 proteins from the Escherichia coli proteome with spectrum-level false discovery rate (FDR) less than 1%. The number of identified proteoforms in this work is over three times higher than that in previous single-shot CZE-MS/MS studies. Truncations, N-terminal methionine excision, signal peptide removal, and some post-translational modifications including oxidation and acetylation were detected.
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Affiliation(s)
- Rachele A Lubeckyj
- Department of Chemistry, Michigan State University , 578 S Shaw Lane, East Lansing, Michigan 48824, United States
| | - Elijah N McCool
- Department of Chemistry, Michigan State University , 578 S Shaw Lane, East Lansing, Michigan 48824, United States
| | - Xiaojing Shen
- Department of Chemistry, Michigan State University , 578 S Shaw Lane, East Lansing, Michigan 48824, United States
| | - Qiang Kou
- Department of BioHealth Informatics, Indiana University-Purdue University Indianapolis , 719 Indiana Avenue, Indianapolis, Indiana 46202, United States
| | - Xiaowen Liu
- Department of BioHealth Informatics, Indiana University-Purdue University Indianapolis , 719 Indiana Avenue, Indianapolis, Indiana 46202, United States.,Center for Computational Biology and Bioinformatics, Indiana University School of Medicine , 410 W. 10th Street, Indianapolis, Indiana 46202, United States
| | - Liangliang Sun
- Department of Chemistry, Michigan State University , 578 S Shaw Lane, East Lansing, Michigan 48824, United States
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Pont L, Benavente F, Barbosa J, Sanz-Nebot V. On-line immunoaffinity solid-phase extraction capillary electrophoresis mass spectrometry using Fab´antibody fragments for the analysis of serum transthyretin. Talanta 2017; 170:224-232. [DOI: 10.1016/j.talanta.2017.03.104] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Revised: 03/29/2017] [Accepted: 03/31/2017] [Indexed: 02/08/2023]
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Buckley K, Ryder AG. Applications of Raman Spectroscopy in Biopharmaceutical Manufacturing: A Short Review. APPLIED SPECTROSCOPY 2017; 71:1085-1116. [PMID: 28534676 DOI: 10.1177/0003702817703270] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
The production of active pharmaceutical ingredients (APIs) is currently undergoing its biggest transformation in a century. The changes are based on the rapid and dramatic introduction of protein- and macromolecule-based drugs (collectively known as biopharmaceuticals) and can be traced back to the huge investment in biomedical science (in particular in genomics and proteomics) that has been ongoing since the 1970s. Biopharmaceuticals (or biologics) are manufactured using biological-expression systems (such as mammalian, bacterial, insect cells, etc.) and have spawned a large (>€35 billion sales annually in Europe) and growing biopharmaceutical industry (BioPharma). The structural and chemical complexity of biologics, combined with the intricacy of cell-based manufacturing, imposes a huge analytical burden to correctly characterize and quantify both processes (upstream) and products (downstream). In small molecule manufacturing, advances in analytical and computational methods have been extensively exploited to generate process analytical technologies (PAT) that are now used for routine process control, leading to more efficient processes and safer medicines. In the analytical domain, biologic manufacturing is considerably behind and there is both a huge scope and need to produce relevant PAT tools with which to better control processes, and better characterize product macromolecules. Raman spectroscopy, a vibrational spectroscopy with a number of useful properties (nondestructive, non-contact, robustness) has significant potential advantages in BioPharma. Key among them are intrinsically high molecular specificity, the ability to measure in water, the requirement for minimal (or no) sample pre-treatment, the flexibility of sampling configurations, and suitability for automation. Here, we review and discuss a representative selection of the more important Raman applications in BioPharma (with particular emphasis on mammalian cell culture). The review shows that the properties of Raman have been successfully exploited to deliver unique and useful analytical solutions, particularly for online process monitoring. However, it also shows that its inherent susceptibility to fluorescence interference and the weakness of the Raman effect mean that it can never be a panacea. In particular, Raman-based methods are intrinsically limited by the chemical complexity and wide analyte-concentration-profiles of cell culture media/bioprocessing broths which limit their use for quantitative analysis. Nevertheless, with appropriate foreknowledge of these limitations and good experimental design, robust analytical methods can be produced. In addition, new technological developments such as time-resolved detectors, advanced lasers, and plasmonics offer potential of new Raman-based methods to resolve existing limitations and/or provide new analytical insights.
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Affiliation(s)
- Kevin Buckley
- Nanoscale Biophotonics Laboratory, School of Chemistry, National University of Ireland - Galway, Galway, Ireland
| | - Alan G Ryder
- Nanoscale Biophotonics Laboratory, School of Chemistry, National University of Ireland - Galway, Galway, Ireland
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25
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Dawod M, Arvin NE, Kennedy RT. Recent advances in protein analysis by capillary and microchip electrophoresis. Analyst 2017; 142:1847-1866. [PMID: 28470231 PMCID: PMC5516626 DOI: 10.1039/c7an00198c] [Citation(s) in RCA: 91] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
This review article describes the significant recent advances in the analysis of proteins by capillary and microchip electrophoresis during the period from mid-2014 to early 2017. This review highlights the progressions, new methodologies, innovative instrumental modifications, and challenges for efficient protein analysis in human specimens, animal tissues, and plant samples. The protein analysis fields covered in this review include analysis of native, reduced, and denatured proteins in addition to Western blotting, protein therapeutics and proteomics.
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Affiliation(s)
- Mohamed Dawod
- Department of Chemistry, University of Michigan, 930 N. University Ave, Ann Arbor, Michigan 48109, USA.
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26
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Biacchi M, Said N, Beck A, Leize-Wagner E, François YN. Top-down and middle-down approach by fraction collection enrichment using off-line capillary electrophoresis – mass spectrometry coupling: Application to monoclonal antibody F c/2 charge variants. J Chromatogr A 2017; 1498:120-127. [DOI: 10.1016/j.chroma.2017.02.064] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2016] [Revised: 01/13/2017] [Accepted: 02/26/2017] [Indexed: 12/22/2022]
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27
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Reversed-phase separation methods for glycan analysis. Anal Bioanal Chem 2016; 409:359-378. [PMID: 27888305 PMCID: PMC5203856 DOI: 10.1007/s00216-016-0073-0] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Revised: 10/26/2016] [Accepted: 10/31/2016] [Indexed: 12/21/2022]
Abstract
Reversed-phase chromatography is a method that is often used for glycan separation. For this, glycans are often derivatized with a hydrophobic tag to achieve retention on hydrophobic stationary phases. The separation and elution order of glycans in reversed-phase chromatography is highly dependent on the hydrophobicity of the tag and the contribution of the glycan itself to the retention. The contribution of the different monosaccharides to the retention strongly depends on the position and linkage, and isomer separation may be achieved. The influence of sialic acids and fucoses on the retention of glycans is still incompletely understood and deserves further study. Analysis of complex samples may come with incomplete separation of glycan species, thereby complicating reversed-phase chromatography with fluorescence or UV detection, whereas coupling with mass spectrometry detection allows the resolution of complex mixtures. Depending on the column properties, eluents, and run time, separation of isomeric and isobaric structures can be accomplished with reversed-phase chromatography. Alternatively, porous graphitized carbon chromatography and hydrophilic interaction liquid chromatography are also able to separate isomeric and isobaric structures, generally without the necessity of glycan labeling. Hydrophilic interaction liquid chromatography, porous graphitized carbon chromatography, and reversed-phase chromatography all serve different research purposes and thus can be used for different research questions. A great advantage of reversed-phase chromatography is its broad distribution as it is used in virtually every bioanalytical research laboratory, making it an attracting platform for glycan analysis. Glycan isomer separation by reversed phase liquid chromatography ![]()
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Bertoletti L, Schappler J, Colombo R, Rudaz S, Haselberg R, Domínguez-Vega E, Raimondi S, Somsen GW, De Lorenzi E. Evaluation of capillary electrophoresis-mass spectrometry for the analysis of the conformational heterogeneity of intact proteins using beta 2-microglobulin as model compound. Anal Chim Acta 2016; 945:102-109. [PMID: 27968711 DOI: 10.1016/j.aca.2016.10.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 10/07/2016] [Accepted: 10/09/2016] [Indexed: 10/20/2022]
Abstract
In this work we explored the feasibility of different CE-ESI-MS set-ups for the analysis of conformational states of an intact protein. By using the same background electrolyte at quasi physiological conditions (50 mM ammonium bicarbonate, pH 7.4) a sequential optimization was carried out, initially by evaluating a sheath-liquid interface with both a single quadrupole (SQ) and a time-of-flight (TOF) mass spectrometer; then a sheathless interface coupled with high-resolution QTOF MS was considered. Beta2-microglobulin has been taken as a model, as it is an amyloidogenic protein and its conformational changes are strictly connected to the onset of a disease. The separation of two conformers at dynamic equilibrium is achieved all the way down to the MS detection. Notably, the equilibrium ratio of the protein conformers is maintained in the electrospray source after CE separation. Strengths and weaknesses of each optimized set-up are emphasized and their feasibility in unfolding studies is evaluated. In particular, ESI-TOF MS can assign protein forms that differ by 1 Da only and sheathless interfacing is best suited to preserve protein structure integrity. This demonstrates the CE-ESI-MS performance in terms of separation, detection and characterization of conformational species that co-populate a protein solution.
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Affiliation(s)
- Laura Bertoletti
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100, Pavia, Italy.
| | - Julie Schappler
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, CMU, Rue Michel Servet 1, 1211, Geneva 4, Switzerland.
| | - Raffaella Colombo
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100, Pavia, Italy.
| | - Serge Rudaz
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, CMU, Rue Michel Servet 1, 1211, Geneva 4, Switzerland.
| | - Rob Haselberg
- Division of BioAnalytical Chemistry, AIMMS Research Group BioMolecular Analysis, Vrije Universiteit Amsterdam, De Boelelaan 1085, 1081 HV, Amsterdam, The Netherlands.
| | - Elena Domínguez-Vega
- Division of BioAnalytical Chemistry, AIMMS Research Group BioMolecular Analysis, Vrije Universiteit Amsterdam, De Boelelaan 1085, 1081 HV, Amsterdam, The Netherlands.
| | - Sara Raimondi
- Department of Molecular Medicine, Institute of Biochemistry, University of Pavia, Viale Taramelli 3b, 27100, Pavia, Italy.
| | - Govert W Somsen
- Division of BioAnalytical Chemistry, AIMMS Research Group BioMolecular Analysis, Vrije Universiteit Amsterdam, De Boelelaan 1085, 1081 HV, Amsterdam, The Netherlands.
| | - Ersilia De Lorenzi
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100, Pavia, Italy.
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Tengattini S, Domínguez-Vega E, Temporini C, Terreni M, Somsen GW. Monitoring antigenic protein integrity during glycoconjugate vaccine synthesis using capillary electrophoresis-mass spectrometry. Anal Bioanal Chem 2016; 408:6123-32. [PMID: 27372716 PMCID: PMC4981626 DOI: 10.1007/s00216-016-9723-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2016] [Revised: 06/11/2016] [Accepted: 06/14/2016] [Indexed: 11/23/2022]
Abstract
A capillary electrophoresis-mass spectrometry (CE-MS) method was developed for the characterization and integrity assessment of the Mycobacterium tuberculosis (MTB) antigens TB10.4 and Ag85B and their chemically produced glycoconjugates, which are glycovaccine candidates against tuberculosis (TB). In order to prevent protein adsorption to the inner capillary wall and to achieve efficient separation of the antigen proteoforms, a polyionic multilayer coating of polybrene-dextran sulfate-polybrene (PB-DS-PB) was used in combination with 1.5 M acetic acid as background electrolyte (BGE). Coupling of CE to high-resolution time-of-flight MS was achieved by a coaxial interface employing a sheath liquid of isopropanol-water (50:50, v/v) containing 0.1 % formic acid. The MTB antigens were exposed to experimental conditions used for chemical glycosylation (but no activated saccharide was added) in order to investigate their stability during glycovaccine production. CE-MS analysis revealed the presence of several closely related degradation products, including truncated, oxidized and conformational variants, which were assigned by accurate mass. Analysis of synthesized mannose conjugates of TB10.4 and Ag85B allowed the determination of the glycoform composition of the neo-glycoproteins next to the characterization of degradation products which were shown to be partly glycoconjugated. Moreover, the selectivity of CE-MS allowed specific detection of deamidated species (protein mass change of 1.0 Da only), indicating that chemical glycosylation increased susceptibility to deamidation. Overall, the results show that CE-MS represents a useful analytical tool for the detailed characterization and optimization of neo-glycoconjugate products. Graphical Abstract Flowchart illustrating Mycobacterium tuberculosis (MTB) antigen glycosylation, glycoconjugate variant and degradation product separation by capillary electrophoresis (CE) and their characterization by intact mass spectrometry (MS).
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Affiliation(s)
- Sara Tengattini
- Department of Drug Sciences, University of Pavia, via Taramelli 12, 27100, Pavia, Italy
- Division of BioAnalytical Chemistry, Department of Chemistry and Pharmaceutical Sciences, Vrije Universiteit Amsterdam, de Boelelaan 1085, 1081 HV, Amsterdam, The Netherlands
| | - Elena Domínguez-Vega
- Division of BioAnalytical Chemistry, Department of Chemistry and Pharmaceutical Sciences, Vrije Universiteit Amsterdam, de Boelelaan 1085, 1081 HV, Amsterdam, The Netherlands.
| | - Caterina Temporini
- Department of Drug Sciences, University of Pavia, via Taramelli 12, 27100, Pavia, Italy
| | - Marco Terreni
- Department of Drug Sciences, University of Pavia, via Taramelli 12, 27100, Pavia, Italy
| | - Govert W Somsen
- Division of BioAnalytical Chemistry, Department of Chemistry and Pharmaceutical Sciences, Vrije Universiteit Amsterdam, de Boelelaan 1085, 1081 HV, Amsterdam, The Netherlands
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Morbioli GG, Mazzu-Nascimento T, Aquino A, Cervantes C, Carrilho E. Recombinant drugs-on-a-chip: The usage of capillary electrophoresis and trends in miniaturized systems – A review. Anal Chim Acta 2016; 935:44-57. [DOI: 10.1016/j.aca.2016.06.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Revised: 06/07/2016] [Accepted: 06/10/2016] [Indexed: 01/09/2023]
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Recent advances in capillary electrophoretic migration techniques for pharmaceutical analysis (2013-2015). Electrophoresis 2016; 37:1591-608. [DOI: 10.1002/elps.201600058] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Revised: 03/04/2016] [Accepted: 03/04/2016] [Indexed: 11/07/2022]
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Planinc A, Bones J, Dejaegher B, Van Antwerpen P, Delporte C. Glycan characterization of biopharmaceuticals: Updates and perspectives. Anal Chim Acta 2016; 921:13-27. [PMID: 27126786 DOI: 10.1016/j.aca.2016.03.049] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Revised: 03/21/2016] [Accepted: 03/29/2016] [Indexed: 02/01/2023]
Abstract
Therapeutic proteins are rapidly becoming the most promising class of pharmaceuticals on the market due to their successful treatment of a vast array of serious diseases, such as cancers and immune disorders. Therapeutic proteins are produced using recombinant DNA technology. More than 60% of therapeutic proteins are posttranslationally modified following biosynthesis by the addition of N- or O-linked glycans. Glycosylation is the most common posttranslational modifications of proteins. However, it is also the most demanding and complex posttranslational modification from the analytical point of view. Moreover, research has shown that glycosylation significantly impacts stability, half-life, mechanism of action and safety of a therapeutic protein. Considering the exponential growth of biotherapeutics, this present review of the literature (2009-2015) focuses on the characterization of protein glycosylation, which has witnessed an improvement in methodology. Furthermore, it discusses current issues in the fields of production and characterization of therapeutic proteins. This review also highlights the problem of non-standard requirements for the approval of biosimilars with regard to their glycosylation and discusses recent developments and perspectives for improved glycan characterization.
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Affiliation(s)
- Ana Planinc
- Analytical Platform of the Faculty of Pharmacy and Laboratory of Pharmaceutical Chemistry, Faculty of Pharmacy, Universite Libre de Bruxelles (ULB), Brussels, Belgium
| | - Jonathan Bones
- Characterisation and Comparability Laboratory, NIBRT - The National Institute for Bioprocessing Research and Training, Foster Avenue, Mount Merrion, Blackrock, Co. Dublin, Ireland
| | - Bieke Dejaegher
- Laboratory of Instrumental Analysis and Bioelectrochemistry, Faculty of Pharmacy, Université Libre de Bruxelles (ULB), Boulevard du Triomphe, B-1050 Brussels, Belgium; Department of Analytical Chemistry and Pharmaceutical Technology (FABI), Center for Pharmaceutical Research (CePhaR), Faculty of Medicines and Pharmacy, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, B-1090 Brussels, Belgium
| | - Pierre Van Antwerpen
- Analytical Platform of the Faculty of Pharmacy and Laboratory of Pharmaceutical Chemistry, Faculty of Pharmacy, Universite Libre de Bruxelles (ULB), Brussels, Belgium
| | - Cédric Delporte
- Analytical Platform of the Faculty of Pharmacy and Laboratory of Pharmaceutical Chemistry, Faculty of Pharmacy, Universite Libre de Bruxelles (ULB), Brussels, Belgium.
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Wessels HJCT, de Almeida NM, Kartal B, Keltjens JT. Bacterial Electron Transfer Chains Primed by Proteomics. Adv Microb Physiol 2016; 68:219-352. [PMID: 27134025 DOI: 10.1016/bs.ampbs.2016.02.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Electron transport phosphorylation is the central mechanism for most prokaryotic species to harvest energy released in the respiration of their substrates as ATP. Microorganisms have evolved incredible variations on this principle, most of these we perhaps do not know, considering that only a fraction of the microbial richness is known. Besides these variations, microbial species may show substantial versatility in using respiratory systems. In connection herewith, regulatory mechanisms control the expression of these respiratory enzyme systems and their assembly at the translational and posttranslational levels, to optimally accommodate changes in the supply of their energy substrates. Here, we present an overview of methods and techniques from the field of proteomics to explore bacterial electron transfer chains and their regulation at levels ranging from the whole organism down to the Ångstrom scales of protein structures. From the survey of the literature on this subject, it is concluded that proteomics, indeed, has substantially contributed to our comprehending of bacterial respiratory mechanisms, often in elegant combinations with genetic and biochemical approaches. However, we also note that advanced proteomics offers a wealth of opportunities, which have not been exploited at all, or at best underexploited in hypothesis-driving and hypothesis-driven research on bacterial bioenergetics. Examples obtained from the related area of mitochondrial oxidative phosphorylation research, where the application of advanced proteomics is more common, may illustrate these opportunities.
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Affiliation(s)
- H J C T Wessels
- Nijmegen Center for Mitochondrial Disorders, Radboud Proteomics Centre, Translational Metabolic Laboratory, Radboud University Medical Center, Nijmegen, The Netherlands
| | - N M de Almeida
- Institute of Water and Wetland Research, Radboud University Nijmegen, Nijmegen, The Netherlands
| | - B Kartal
- Institute of Water and Wetland Research, Radboud University Nijmegen, Nijmegen, The Netherlands; Laboratory of Microbiology, Ghent University, Ghent, Belgium
| | - J T Keltjens
- Institute of Water and Wetland Research, Radboud University Nijmegen, Nijmegen, The Netherlands.
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Pont L, Poturcu K, Benavente F, Barbosa J, Sanz-Nebot V. Comparison of capillary electrophoresis and capillary liquid chromatography coupled to mass spectrometry for the analysis of transthyretin in human serum. J Chromatogr A 2016; 1444:145-53. [PMID: 27052822 DOI: 10.1016/j.chroma.2016.03.052] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Revised: 02/02/2016] [Accepted: 03/19/2016] [Indexed: 01/10/2023]
Abstract
Capillary electrophoresis and capillary liquid chromatography coupled to mass spectrometry (CE-MS and CapLC-MS, respectively) are nowadays very suitable techniques for the separation and characterization of intact proteins in biological fluids. In this paper, we compare the performance of both techniques for the analysis of transthyretin (TTR), which is a homotetrameric protein (relative molecular mass (Mr) ∼56,000) involved in different types of amyloidosis. Furthermore, it is also presented a novel sample pretreatment based on immunoprecipitation (IP) using Protein A Ultrarapid Agarose™ (UAPA) magnetic beads (MBs) to purify TTR from serum samples. This novel IP based on MBs allowed the detection of TTR monomeric proteoforms that were not possible to analyze by conventional IP in solution. In addition, UAPA MBs provided many other desirable advantages including higher selectivity and minimal unspecific binding of other proteins. CE-MS and CapLC-MS were applied to analyze serum samples from healthy controls and familial amyloidotic polyneuropathy type I (FAP-I) patients, who suffered from the most common hereditary systemic amyloidosis. Both techniques allowed detecting the same TTR proteoforms, including the mutant TTR (Met 30) variant (variation in relative molecular mass (ΔMr) was +32.07, from wild-type TTR). Migration/retention times and relative quantitation of the different proteoforms were similar and reproducible in both cases, but the limits of detection (LODs) achieved by CE-MS were slightly lower (2-2.5-fold). Some other differences were also found on separation selectivity (migration orders and separation of antibody), peak efficiency, total analysis time, calibration ranges and experimental Mr accuracy.
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Affiliation(s)
- Laura Pont
- Department of Analytical Chemistry, University of Barcelona, Barcelona, Spain
| | - Kader Poturcu
- Department of Chemistry, Suleyman Demirel University, Isparta, Turkey
| | - Fernando Benavente
- Department of Analytical Chemistry, University of Barcelona, Barcelona, Spain
| | - José Barbosa
- Department of Analytical Chemistry, University of Barcelona, Barcelona, Spain
| | - Victoria Sanz-Nebot
- Department of Analytical Chemistry, University of Barcelona, Barcelona, Spain.
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35
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Peró-Gascón R, Pont L, Benavente F, Barbosa J, Sanz-Nebot V. Analysis of serum transthyretin by on-line immunoaffinity solid-phase extraction capillary electrophoresis mass spectrometry using magnetic beads. Electrophoresis 2016; 37:1220-31. [DOI: 10.1002/elps.201500495] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2015] [Revised: 01/12/2016] [Accepted: 01/21/2016] [Indexed: 12/31/2022]
Affiliation(s)
- Roger Peró-Gascón
- Department of Analytical Chemistry; University of Barcelona; Barcelona Spain
| | - Laura Pont
- Department of Analytical Chemistry; University of Barcelona; Barcelona Spain
| | - Fernando Benavente
- Department of Analytical Chemistry; University of Barcelona; Barcelona Spain
| | - José Barbosa
- Department of Analytical Chemistry; University of Barcelona; Barcelona Spain
| | - Victoria Sanz-Nebot
- Department of Analytical Chemistry; University of Barcelona; Barcelona Spain
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36
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Han M, Rock BM, Pearson JT, Rock DA. Intact mass analysis of monoclonal antibodies by capillary electrophoresis—Mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2016; 1011:24-32. [DOI: 10.1016/j.jchromb.2015.12.045] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Revised: 12/17/2015] [Accepted: 12/20/2015] [Indexed: 12/23/2022]
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37
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Influence of the ionic strength of acidic background electrolytes on the separation of proteins by capillary electrophoresis. J Chromatogr A 2016; 1432:145-51. [DOI: 10.1016/j.chroma.2015.12.060] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 12/20/2015] [Accepted: 12/21/2015] [Indexed: 12/16/2022]
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38
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Abstract
In clinical metabolomics, capillary electrophoresis-mass spectrometry (CE-MS) has become a very useful technique for the analysis of highly polar and charged metabolites in complex biologic samples. A comprehensive overview of recent developments in CE-MS for metabolic profiling studies is presented. This review covers theory, CE separation modes, capillary coatings, and practical aspects of CE-MS coupling. Attention is also given to sample pretreatment and data analysis strategies used for metabolomics. The applicability of CE-MS for clinical metabolomics is illustrated using samples ranging from plasma and urine to cells and tissues. CE-MS application to large-scale and quantitative clinical metabolomics is addressed. Conclusions and perspectives on this unique analytic strategy are presented.
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39
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Domínguez-Vega E, Haselberg R, Somsen GW. Capillary Zone Electrophoresis-Mass Spectrometry of Intact Proteins. Methods Mol Biol 2016; 1466:25-41. [PMID: 27473479 DOI: 10.1007/978-1-4939-4014-1_3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Capillary electrophoresis (CE) coupled with mass spectrometry (MS) has proven to be a powerful analytical tool for the characterization of intact proteins. It combines the high separation efficiency, short analysis time, and versatility of CE with the mass selectivity and sensitivity offered by MS detection. This chapter focuses on important practical considerations when applying CE-MS for the analysis of intact proteins. Technological aspects with respect to the use of CE-MS interfaces and application of noncovalent capillary coatings preventing protein adsorption are treated. Critical factors for successful protein analysis are discussed and four typical CE-MS systems are described demonstrating the characterization of different types of intact proteins by CE-MS. These methodologies comprise the use of sheath-liquid and sheathless CE-MS interfaces, and various types of noncovalent capillary coatings allowing efficient and reproducible protein separations. The discussion includes the analysis of lysozyme-drug conjugates and the therapeutic proteins human growth hormone, human interferon-β-1a, and human erythropoietin.
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Affiliation(s)
- Elena Domínguez-Vega
- Division of BioAnalytical Chemistry, VU University, de Boelelaan 1083, 1081 HV, Amsterdam, The Netherlands
| | - Rob Haselberg
- Division of BioAnalytical Chemistry, VU University, de Boelelaan 1083, 1081 HV, Amsterdam, The Netherlands
| | - Govert W Somsen
- Division of BioAnalytical Chemistry, VU University, de Boelelaan 1083, 1081 HV, Amsterdam, The Netherlands.
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40
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Neuberger S, Rafai A, Neusüß C. Screening of Small Intact Proteins by Capillary Electrophoresis Electrospray Ionization-Mass Spectrometry (CE-ESI-MS). Methods Mol Biol 2016; 1466:43-56. [PMID: 27473480 DOI: 10.1007/978-1-4939-4014-1_4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Capillary electrophoresis (CE) has been shown to be a suitable separation technique for complex samples. Combined with electrospray ionization-mass spectrometry (ESI-MS), it is a powerful tool offering the opportunity of high selectivity and sensitivity combined with the possibility to identify and characterize intact proteins. In this protocol, we demonstrate a screening method for intact proteins based on capillary zone electrophoresis (CZE) separation coupled with online mass spectrometric detection. In order to avoid protein-wall interactions, a neutral coated capillary is used to create a universal method for proteins with both low and high electrophoretic mobilities. In addition, we show the successful validation and application of this screening method for a set of eight standard proteins and the glycoprotein erythropoietin.
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Affiliation(s)
- Sabine Neuberger
- Department of Chemistry, Aalen University, Beethovenstraβe 1, Aalen, D-73430, Germany
| | | | - Christian Neusüß
- Department of Chemistry, Aalen University, Beethovenstraβe 1, Aalen, D-73430, Germany.
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41
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Kohl FJ, Neusüß C. CZE-CZE ESI-MS Coupling with a Fully Isolated Mechanical Valve. Methods Mol Biol 2016; 1483:155-166. [PMID: 27645736 DOI: 10.1007/978-1-4939-6403-1_9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The hyphenation of capillary electrophoresis and electrospray ionization-mass spectrometry is a powerful tool for peptide and protein analysis. It provides high separation power in combination with sensitive and selective detection and the possibility of analyte identification. Unfortunately, many proven capillary electrophoresis methods are not compatible with electrospray-mass spectrometry since several compounds of best separating background electrolytes are interfering in the electrospray ionization. Here, we describe a two-dimensional capillary electrophoresis system using the second dimension as a cleanup stage in order to remove interfering compounds to enable electrospray-mass spectrometry coupling.
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Affiliation(s)
- Felix J Kohl
- Department of Chemistry, Aalen University, Beethovenstraβe 1, Aalen, D-73430, Germany
| | - Christian Neusüß
- Department of Chemistry, Aalen University, Beethovenstraβe 1, Aalen, D-73430, Germany.
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42
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Kašička V. Recent developments in capillary and microchip electroseparations of peptides (2013-middle 2015). Electrophoresis 2015; 37:162-88. [DOI: 10.1002/elps.201500329] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2015] [Revised: 08/25/2015] [Accepted: 08/25/2015] [Indexed: 12/16/2022]
Affiliation(s)
- Václav Kašička
- Institute of Organic Chemistry and Biochemistry, v.v.i; The Czech Academy of Sciences; Prague Czech Republic
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43
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Štěpánová S, Kašička V. Recent developments and applications of capillary and microchip electrophoresis in proteomic and peptidomic analyses. J Sep Sci 2015; 39:198-211. [DOI: 10.1002/jssc.201500973] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2015] [Revised: 10/06/2015] [Accepted: 10/06/2015] [Indexed: 12/19/2022]
Affiliation(s)
- Sille Štěpánová
- Institute of Organic Chemistry and Biochemistry; The Czech Academy of Sciences; Prague Czech Republic
| | - Václav Kašička
- Institute of Organic Chemistry and Biochemistry; The Czech Academy of Sciences; Prague Czech Republic
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44
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Ramautar R, Somsen GW, de Jong GJ. Developments in coupled solid-phase extraction-capillary electrophoresis 2013-2015. Electrophoresis 2015; 37:35-44. [DOI: 10.1002/elps.201500401] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Revised: 10/05/2015] [Accepted: 10/05/2015] [Indexed: 11/08/2022]
Affiliation(s)
- Rawi Ramautar
- Leiden Academic Center for Drug Research; Leiden University; Leiden The Netherlands
| | - Govert W. Somsen
- AIMMS Division of BioAnalytical Chemistry; VU University Amsterdam; Amsterdam The Netherlands
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45
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Dotz V, Haselberg R, Shubhakar A, Kozak RP, Falck D, Rombouts Y, Reusch D, Somsen GW, Fernandes DL, Wuhrer M. Mass spectrometry for glycosylation analysis of biopharmaceuticals. Trends Analyt Chem 2015. [DOI: 10.1016/j.trac.2015.04.024] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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46
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Barroso A, Giménez E, Benavente F, Barbosa J, Sanz-Nebot V. Improved tryptic digestion assisted with an acid-labile anionic surfactant for the separation and characterization of glycopeptide glycoforms of a proteolytic-resistant glycoprotein by capillary electrophoresis time-of-flight mass spectrometry. Electrophoresis 2015; 37:987-97. [DOI: 10.1002/elps.201500255] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Revised: 07/21/2015] [Accepted: 08/07/2015] [Indexed: 11/10/2022]
Affiliation(s)
- Albert Barroso
- Department of Analytical Chemistry; University of Barcelona; Barcelona Spain
| | - Estela Giménez
- Department of Analytical Chemistry; University of Barcelona; Barcelona Spain
| | - Fernando Benavente
- Department of Analytical Chemistry; University of Barcelona; Barcelona Spain
| | - José Barbosa
- Department of Analytical Chemistry; University of Barcelona; Barcelona Spain
| | - Victoria Sanz-Nebot
- Department of Analytical Chemistry; University of Barcelona; Barcelona Spain
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47
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Toward greener analytical techniques for the absolute quantification of peptides in pharmaceutical and biological samples. J Pharm Biomed Anal 2015; 113:181-8. [DOI: 10.1016/j.jpba.2015.03.023] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Revised: 03/19/2015] [Accepted: 03/23/2015] [Indexed: 11/22/2022]
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48
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Domínguez-Vega E, Haselberg R, Somsen GW, de Jong GJ. Simultaneous Assessment of Protein Heterogeneity and Affinity by Capillary Electrophoresis–Mass Spectrometry. Anal Chem 2015. [DOI: 10.1021/acs.analchem.5b01701] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- E. Domínguez-Vega
- Division
of BioAnalytical Chemistry, VU University Amsterdam, de Boelelaan
1083, 1081 HV Amsterdam, The Netherlands
| | - R. Haselberg
- Division
of BioAnalytical Chemistry, VU University Amsterdam, de Boelelaan
1083, 1081 HV Amsterdam, The Netherlands
| | - G. W. Somsen
- Division
of BioAnalytical Chemistry, VU University Amsterdam, de Boelelaan
1083, 1081 HV Amsterdam, The Netherlands
| | - G. J. de Jong
- Biomolecular
Analysis, Utrecht University, P.O. Box 80082, 3508 TB Utrecht, The Netherlands
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49
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Pont L, Benavente F, Barbosa J, Sanz-Nebot V. Analysis of transthyretin in human serum by capillary zone electrophoresis electrospray ionization time-of-flight mass spectrometry. Application to familial amyloidotic polyneuropathy type I. Electrophoresis 2015; 36:1265-73. [DOI: 10.1002/elps.201400590] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Revised: 03/03/2015] [Accepted: 03/03/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Laura Pont
- Department of Analytical Chemistry; University of Barcelona; Barcelona Spain
| | - Fernando Benavente
- Department of Analytical Chemistry; University of Barcelona; Barcelona Spain
| | - José Barbosa
- Department of Analytical Chemistry; University of Barcelona; Barcelona Spain
| | - Victoria Sanz-Nebot
- Department of Analytical Chemistry; University of Barcelona; Barcelona Spain
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50
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Acunha T, Ibáñez C, Pascual Reguera MI, Sarò M, Navarro R, Alfonso Redondo J, Reinecke H, Gallardo A, Simó C, Cifuentes A. Potential of prodendronic polyamines with modulated segmental charge density as novel coating for fast and efficient analysis of peptides and basic proteins by CE and CE-MS. Electrophoresis 2015; 36:1564-71. [DOI: 10.1002/elps.201400576] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Revised: 03/12/2015] [Accepted: 03/12/2015] [Indexed: 01/13/2023]
Affiliation(s)
- Tanize Acunha
- Laboratory of Foodomics; Institute of Food Science Research (CIAL); CSIC; Campus de Cantoblanco Madrid Spain
- CAPES Foundation; Ministry of Education of Brazil; Brasília DF Brazil
| | - Clara Ibáñez
- Laboratory of Foodomics; Institute of Food Science Research (CIAL); CSIC; Campus de Cantoblanco Madrid Spain
| | | | - Mariagiovanna Sarò
- Dipartimento di Scienze del Farmaco e dei Prodotti per la Salute, Facoltà di Farmacia; Università degli Studi di Messina; Messina Italy
| | - Rodrigo Navarro
- Instituto de Ciencia y Tecnología de Polímeros; ICTP-CSIC; Madrid
| | | | - Helmut Reinecke
- Instituto de Ciencia y Tecnología de Polímeros; ICTP-CSIC; Madrid
| | - Alberto Gallardo
- Instituto de Ciencia y Tecnología de Polímeros; ICTP-CSIC; Madrid
| | - Carolina Simó
- Laboratory of Foodomics; Institute of Food Science Research (CIAL); CSIC; Campus de Cantoblanco Madrid Spain
| | - Alejandro Cifuentes
- Laboratory of Foodomics; Institute of Food Science Research (CIAL); CSIC; Campus de Cantoblanco Madrid Spain
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