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Patabandige MW, Pfeifer LD, Nguyen HT, Desaire H. Quantitative clinical glycomics strategies: A guide for selecting the best analysis approach. MASS SPECTROMETRY REVIEWS 2022; 41:901-921. [PMID: 33565652 PMCID: PMC8601598 DOI: 10.1002/mas.21688] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 12/13/2020] [Accepted: 01/24/2021] [Indexed: 05/05/2023]
Abstract
Glycans introduce complexity to the proteins to which they are attached. These modifications vary during the progression of many diseases; thus, they serve as potential biomarkers for disease diagnosis and prognosis. The immense structural diversity of glycans makes glycosylation analysis and quantitation difficult. Fortunately, recent advances in analytical techniques provide the opportunity to quantify even low-abundant glycopeptides and glycans derived from complex biological mixtures, allowing for the identification of glycosylation differences between healthy samples and those derived from disease states. Understanding the strengths and weaknesses of different quantitative glycomics analysis methods is important for selecting the best strategy to analyze glycosylation changes in any given set of clinical samples. To provide guidance towards selecting the proper approach, we discuss four widely used quantitative glycomics analysis platforms, including fluorescence-based analysis of released N-linked glycans and three different varieties of MS-based analysis: liquid chromatography (LC)-mass spectrometry (MS) analysis of glycopeptides, matrix-assisted laser desorption ionization-time of flight MS, and LC-ESI-MS analysis of released N-linked glycans. These methods' strengths and weaknesses are compared, particularly associated with the figures of merit that are important for clinical biomarker studies, including: the initial sample requirements, the methods' throughput, sample preparation time, the number of species identified, the methods' utility for isomer separation and structural characterization, method-related challenges associated with quantitation, repeatability, the expertise required, and the cost for each analysis. This review, therefore, provides unique guidance to researchers who endeavor to undertake a clinical glycomics analysis by offering insights on the available analysis technologies.
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Affiliation(s)
- Milani Wijeweera Patabandige
- Ralph N. Adams Institute for Bioanalytical Chemistry, Department of Chemistry, University of Kansas, Lawrence, KS 66047, United States
| | - Leah D. Pfeifer
- Ralph N. Adams Institute for Bioanalytical Chemistry, Department of Chemistry, University of Kansas, Lawrence, KS 66047, United States
| | - Hanna T. Nguyen
- Ralph N. Adams Institute for Bioanalytical Chemistry, Department of Chemistry, University of Kansas, Lawrence, KS 66047, United States
| | - Heather Desaire
- Ralph N. Adams Institute for Bioanalytical Chemistry, Department of Chemistry, University of Kansas, Lawrence, KS 66047, United States
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2
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Pont L, Kuzyk V, Benavente F, Sanz-Nebot V, Mayboroda OA, Wuhrer M, Lageveen-Kammeijer GSM. Site-Specific N-Linked Glycosylation Analysis of Human Carcinoembryonic Antigen by Sheathless Capillary Electrophoresis-Tandem Mass Spectrometry. J Proteome Res 2021; 20:1666-1675. [PMID: 33560857 PMCID: PMC8023805 DOI: 10.1021/acs.jproteome.0c00875] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
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With 28 potential N-glycosylation sites, human
carcinoembryonic antigen (CEA) bears an extreme amount of N-linked glycosylation, and approximately 60% of its molecular
mass can be attributed to its carbohydrates. CEA is often overexpressed
and released by many solid tumors, including colorectal carcinomas.
CEA displays an impressive heterogeneity and variability in sugar
content; however, site-specific distribution of carbohydrate structures
has not been reported so far. The present study investigated CEA samples
purified from human colon carcinoma and human liver metastases and
enabled the characterization of 21 out of 28 potential N-glycosylation sites with respect to their occupancy. The coverage
was achieved by a multienzymatic digestion approach with specific
enzymes, such as trypsin, endoproteinase Glu-C, and the nonspecific enzyme, Pronase, followed by analysis using
sheathless CE-MS/MS. In total, 893 different N-glycopeptides
and 128 unique N-glycan compositions were identified.
Overall, a great heterogeneity was found both within (micro) and in
between (macro) individual N-glycosylation sites.
Moreover, notable differences were found on certain N-glycosylation sites between primary adenocarcinoma and metastatic
tumor in regard to branching, bisection, sialylation, and fucosylation.
Those features, if further investigated in a targeted manner, may
pave the way toward improved diagnostics and monitoring of colorectal
cancer progression and recurrence. Raw mass spectrometric data and
Skyline processed data files that support the findings of this study
are available in the MassIVE repository with the identifier MSV000086774
[DOI: 10.25345/C5Z50X].
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Affiliation(s)
- Laura Pont
- Department of Chemical Engineering and Analytical Chemistry, University of Barcelona, 08007 Barcelona, Spain
| | - Valeriia Kuzyk
- Center for Proteomics and Metabolomics, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands.,Division of Bioanalytical Chemistry, Vrije Universiteit Amsterdam, 1081 HV Amsterdam, The Netherlands
| | - Fernando Benavente
- Department of Chemical Engineering and Analytical Chemistry, University of Barcelona, 08007 Barcelona, Spain
| | - Victoria Sanz-Nebot
- Department of Chemical Engineering and Analytical Chemistry, University of Barcelona, 08007 Barcelona, Spain
| | - Oleg A Mayboroda
- Center for Proteomics and Metabolomics, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands
| | - Manfred Wuhrer
- Center for Proteomics and Metabolomics, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands
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3
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Separation based characterization methods for the N-glycosylation analysis of prostate-specific antigen. J Pharm Biomed Anal 2020; 194:113797. [PMID: 33288345 DOI: 10.1016/j.jpba.2020.113797] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 11/19/2020] [Accepted: 11/21/2020] [Indexed: 12/13/2022]
Abstract
Prostate cancer has the highest malignancy rate diagnosed in men worldwide. Albeit, the gold standard serum prostate-specific antigen (PSA) assays reduced the mortality rate of the disease, the number of false positive diagnoses steeply increased. Therefore, there is an urgent need for complementary biomarkers to enhance the specificity and selectivity of current diagnostic methods. Information about PSA glycosylation can help to fulfill this gap as alterations of its carbohydrate moieties due to cancerous transformation may represent additional markers to distinguish malignant from benign tumors. However, development of suitable methods and instrumentations to investigate the N-glycosylation profile of PSA represents a challenge. In this paper, we critically review the current bioanalytical trends and strategies in the field of PSA glycobiomarker research focusing on separation based characterization methods.
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4
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De Cesare V, Moran J, Traynor R, Knebel A, Ritorto MS, Trost M, McLauchlan H, Hastie CJ, Davies P. High-throughput matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrometry-based deubiquitylating enzyme assay for drug discovery. Nat Protoc 2020; 15:4034-4057. [PMID: 33139956 DOI: 10.1038/s41596-020-00405-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 08/26/2020] [Indexed: 12/24/2022]
Abstract
Deubiquitylating enzymes (DUBs) play a vital role in the ubiquitin pathway by editing or removing ubiquitin from their substrate. As breakthroughs within the ubiquitin field continue to highlight the potential of deubiquitylating enzymes as drug targets, there is increasing demand for versatile high-throughput (HT) tools for the identification of potent and selective DUB modulators. Here we present the HT adaptation of the previously published MALDI-TOF-based DUB assay method. In a MALDI-TOF DUB assay, we quantitate the amount of mono-ubiquitin generated by the in vitro cleavage of ubiquitin chains by DUBs. The method has been specifically developed for use with nanoliter-dispensing robotics to meet drug discovery requirements for the screening of large and diverse compound libraries. Contrary to the most common DUB screening technologies currently available, the MALDI-TOF DUB assay combines the use of physiological substrates with the sensitivity and reliability of the mass spectrometry-based readout.
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Affiliation(s)
- Virginia De Cesare
- MRC Protein Phosphorylation and Ubiquitylation Unit, University of Dundee, Dundee, Scotland, UK.
| | - Jennifer Moran
- MRC Protein Phosphorylation and Ubiquitylation Unit Reagents and Services, University of Dundee, Dundee, Scotland, UK
| | - Ryan Traynor
- MRC Protein Phosphorylation and Ubiquitylation Unit Reagents and Services, University of Dundee, Dundee, Scotland, UK
| | - Axel Knebel
- MRC Protein Phosphorylation and Ubiquitylation Unit, University of Dundee, Dundee, Scotland, UK
| | - Maria Stella Ritorto
- MRC Protein Phosphorylation and Ubiquitylation Unit, University of Dundee, Dundee, Scotland, UK
| | - Matthias Trost
- MRC Protein Phosphorylation and Ubiquitylation Unit, University of Dundee, Dundee, Scotland, UK.,Newcastle University Biosciences Institute, Newcastle University, Newcastle-upon-Tyne, UK
| | - Hilary McLauchlan
- MRC Protein Phosphorylation and Ubiquitylation Unit Reagents and Services, University of Dundee, Dundee, Scotland, UK
| | - C James Hastie
- MRC Protein Phosphorylation and Ubiquitylation Unit Reagents and Services, University of Dundee, Dundee, Scotland, UK
| | - Paul Davies
- MRC Protein Phosphorylation and Ubiquitylation Unit, University of Dundee, Dundee, Scotland, UK.
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5
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Füssl F, Criscuolo A, Cook K, Scheffler K, Bones J. Cracking Proteoform Complexity of Ovalbumin with Anion-Exchange Chromatography–High-Resolution Mass Spectrometry under Native Conditions. J Proteome Res 2019; 18:3689-3702. [DOI: 10.1021/acs.jproteome.9b00375] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Florian Füssl
- NIBRT—The National Institute for Bioprocessing Research and Training, Foster Avenue,
Mount Merrion, Blackrock, Co. Dublin A94 X099, Ireland
| | - Angela Criscuolo
- Thermo Fisher Scientific, Hanna-Kunath-Strasse 11, 28199 Bremen, Germany
| | - Ken Cook
- Thermo Fisher Scientific, Stafford House, 1 Boundary Park, Hemel Hempstead HP2 7GE, United Kingdom
| | - Kai Scheffler
- Thermo Fisher Scientific, Dornierstrasse 4, 82110 Germering, Germany
| | - Jonathan Bones
- NIBRT—The National Institute for Bioprocessing Research and Training, Foster Avenue,
Mount Merrion, Blackrock, Co. Dublin A94 X099, Ireland
- School of Chemical and Bioprocess Engineering, University College Dublin, Belfield, Dublin 4 D04 V1W8, Ireland
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6
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Providing Bionic Glycome as internal standards by glycan reducing and isotope labeling for reliable and simple quantitation of N-glycome based on MALDI- MS. Anal Chim Acta 2019; 1081:112-119. [PMID: 31446948 DOI: 10.1016/j.aca.2019.07.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 06/14/2019] [Accepted: 07/01/2019] [Indexed: 11/22/2022]
Abstract
Accurate, simple and economical methods for quantifying N-glycans are continuously required for discovering disease biomarkers and quality control of biopharmaceuticals. Quantitative N-glycomics based on MS using exogenous isotopic labeling internal standards is promising as it is simple and accurate. However, it is largely hampered by the lack of available glycan internal standard libraries with good coverage of the natural glycan structural heterogeneity as well as broad dynamic mass and ion abundance range. To overcome this limitation, we developed a novel method, providing 'Bionic Glycome' as internal standards for glycan quantitation by MALDI-MS. Bionic Glycome was produced using N-glycome from pooled samples to be analyzed as substrate by one step of glycan reducing and isotope labeling (Glycan-RAIL). Each bionic glycan has 3 Da mass increment over its corresponding glycan analyte based on hemiacetals/alditols and H/D mass difference. In addition, Bionic Glycome has the same glycome composition and similar glycome profile in abundance with N-glycome to be analyzed from biological sample. Through the investigation of single glycan standard and complex glycans released from model glycoprotein and serum, the results demonstrate that the method has good quantitative accuracy and high reproducibility. Lastly, this method was successfully used for discovery of lung cancer specific glycan markers by comparing the serum glycans from each sample in lung cancer group (n = 16) and healthy controls (n = 16), indicating its potential in clinical applications.
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7
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Gaye MM, Ding T, Shion H, Hussein A, Hu Y, Zhou S, Hammoud ZT, Lavine BK, Mechref Y, Gebler JC, Clemmer DE. Delineation of disease phenotypes associated with esophageal adenocarcinoma by MALDI-IMS-MS analysis of serum N-linked glycans. Analyst 2018; 142:1525-1535. [PMID: 28367546 DOI: 10.1039/c6an02697d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
N-Linked glycans, extracted from patient sera and healthy control individuals, are analyzed by Matrix-assisted laser desorption ionization (MALDI) in combination with ion mobility spectrometry (IMS), mass spectrometry (MS) and pattern recognition methods. MALDI-IMS-MS data were collected in duplicate for 58 serum samples obtained from individuals diagnosed with Barrett's esophagus (BE, 14 patients), high-grade dysplasia (HGD, 7 patients), esophageal adenocarcinoma (EAC, 20 patients) and disease-free control (NC, 17 individuals). A combined mobility distribution of 9 N-linked glycans is established for 90 MALDI-IMS-MS spectra (training set) and analyzed using a genetic algorithm for feature selection and classification. Two models for phenotype delineation are subsequently developed and as a result, the four phenotypes (BE, HGD, EAC and NC) are unequivocally differentiated. Next, the two models are tested against 26 blind measurements. Interestingly, these models allowed for the correct phenotype prediction of as many as 20 blinds. Although applied to a limited number of blind samples, this methodology appears promising as a means of discovering molecules from serum that may have capabilities as markers of disease.
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Affiliation(s)
- M M Gaye
- Department of Chemistry, Indiana University, Bloomington, IN 47405, USA.
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8
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Smith J, Mittermayr S, Váradi C, Bones J. Quantitative glycomics using liquid phase separations coupled to mass spectrometry. Analyst 2018; 142:700-720. [PMID: 28170017 DOI: 10.1039/c6an02715f] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Post-translational modification of proteins by the attachment of glycans is governed by a variety of highly specific enzymes and is associated with fundamental impacts on the parent protein's physical, chemical and biological properties. The inherent connection between cellular physiology and specific glycosylation patterns has been shown to offer potential for diagnostic and prognostic monitoring of altered glycosylation in the disease state. Conversely, glycoprotein based biopharmaceuticals have emerged as dominant therapeutic strategies in the treatment of intricate diseases. Glycosylation present on these biopharmaceuticals represents a major critical quality attribute with impacts on both pharmacokinetics and pharmacodynamics. The structural variety of glycans, based upon their non-template driven assembly, poses a significant analytical challenge for both qualitative and quantitative analysis. Labile monosaccharide constituents, isomeric species and often low sample availability from biological sources necessitates meticulous sample handling, ultra-high-resolution analytical separation and sensitive detection techniques, respectively. In this article a critical review of analytical quantitation approaches using liquid phase separations coupled to mass spectrometry for released glycans of biopharmaceutical and biomedical significance is presented. Considerations associated with sample derivatisation strategies, ionisation, relative quantitation through isotopic as well as isobaric labelling, metabolic/enzymatic incorporation and targeted analysis are all thoroughly discussed.
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Affiliation(s)
- Josh Smith
- National Institute for Bioprocessing Research and Training, Fosters Avenue, Mount Merrion, Blackrock, Dublin, A94 X099, Ireland. and School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, 152-160 Pearse Street, Dublin 2, D02 R590, Ireland
| | - Stefan Mittermayr
- National Institute for Bioprocessing Research and Training, Fosters Avenue, Mount Merrion, Blackrock, Dublin, A94 X099, Ireland.
| | - Csaba Váradi
- National Institute for Bioprocessing Research and Training, Fosters Avenue, Mount Merrion, Blackrock, Dublin, A94 X099, Ireland.
| | - Jonathan Bones
- National Institute for Bioprocessing Research and Training, Fosters Avenue, Mount Merrion, Blackrock, Dublin, A94 X099, Ireland. and School of Chemical and Bioprocess Engineering, University College Dublin, Belfield, Dublin 4, D04 V1 W8, Ireland
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9
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A strategy for absolute quantitation of isomers using high performance liquid chromatography-ion mobility mass spectrometry and material balance principle. J Chromatogr A 2018; 1571:140-146. [DOI: 10.1016/j.chroma.2018.08.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 07/24/2018] [Accepted: 08/03/2018] [Indexed: 02/01/2023]
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10
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Zhang Q, Li Z, Wang Y, Zheng Q, Li J. Mass spectrometry for protein sialoglycosylation. MASS SPECTROMETRY REVIEWS 2018; 37:652-680. [PMID: 29228471 DOI: 10.1002/mas.21555] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Accepted: 11/17/2017] [Indexed: 06/07/2023]
Abstract
Sialic acids are a family of structurally unique and negatively charged nine-carbon sugars, normally found at the terminal positions of glycan chains on glycoproteins and glycolipids. The glycosylation of proteins is a universal post-translational modification in eukaryotic species and regulates essential biological functions, in which the most common sialic acid is N-acetyl-neuraminic acid (2-keto-5-acetamido-3,5-dideoxy-D-glycero-D-galactononulopyranos-1-onic acid) (Neu5NAc). Because of the properties of sialic acids under general mass spectrometry (MS) conditions, such as instability, ionization discrimination, and mixed adducts, the use of MS in the analysis of protein sialoglycosylation is still challenging. The present review is focused on the application of MS related methodologies to the study of both N- and O-linked sialoglycans. We reviewed MS-based strategies for characterizing sialylation by analyzing intact glycoproteins, proteolytic digested glycopeptides, and released glycans. The review concludes with future perspectives in the field.
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Affiliation(s)
- Qiwei Zhang
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, Institute for Interdisciplinary Research, Institute of Environment and Health, School of Chemical and Environmental Engineering, Jianghan University, Wuhan, China
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Haidian District, Beijing, China
| | - Zack Li
- School of Medicine, Queen's University, Kingston, Ontario, Canada
| | - Yawei Wang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Haidian District, Beijing, China
| | - Qi Zheng
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, Institute for Interdisciplinary Research, Institute of Environment and Health, School of Chemical and Environmental Engineering, Jianghan University, Wuhan, China
| | - Jianjun Li
- National Research Council Canada, Ottawa, Ontario, Canada
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11
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Wu DT, Guo H, Lin S, Lam SC, Zhao L, Lin DR, Qin W. Review of the structural characterization, quality evaluation, and industrial application of Lycium barbarum polysaccharides. Trends Food Sci Technol 2018. [DOI: 10.1016/j.tifs.2018.07.016] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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12
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Ruhaak LR, Xu G, Li Q, Goonatilleke E, Lebrilla CB. Mass Spectrometry Approaches to Glycomic and Glycoproteomic Analyses. Chem Rev 2018; 118:7886-7930. [PMID: 29553244 DOI: 10.1021/acs.chemrev.7b00732] [Citation(s) in RCA: 253] [Impact Index Per Article: 42.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Glycomic and glycoproteomic analyses involve the characterization of oligosaccharides (glycans) conjugated to proteins. Glycans are produced through a complicated nontemplate driven process involving the competition of enzymes that extend the nascent chain. The large diversity of structures, the variations in polarity of the individual saccharide residues, and the poor ionization efficiencies of glycans all conspire to make the analysis arguably much more difficult than any other biopolymer. Furthermore, the large number of glycoforms associated with a specific protein site makes it more difficult to characterize than any post-translational modification. Nonetheless, there have been significant progress, and advanced separation and mass spectrometry methods have been at its center and the main reason for the progress. While glycomic and glycoproteomic analyses are still typically available only through highly specialized laboratories, new software and workflow is making it more accessible. This review focuses on the role of mass spectrometry and separation methods in advancing glycomic and glycoproteomic analyses. It describes the current state of the field and progress toward making it more available to the larger scientific community.
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Affiliation(s)
- L Renee Ruhaak
- Department of Clinical Chemistry and Laboratory Medicine , Leiden University Medical Center , 2333 ZA Leiden , The Netherlands
| | - Gege Xu
- Department of Chemistry , University of California, Davis , One Shields Avenue , Davis , California 95616 , United States
| | - Qiongyu Li
- Department of Chemistry , University of California, Davis , One Shields Avenue , Davis , California 95616 , United States
| | - Elisha Goonatilleke
- Department of Chemistry , University of California, Davis , One Shields Avenue , Davis , California 95616 , United States
| | - Carlito B Lebrilla
- Department of Chemistry , University of California, Davis , One Shields Avenue , Davis , California 95616 , United States.,Department of Biochemistry and Molecular Medicine , University of California, Davis , Davis , California 95616 , United States.,Foods for Health Institute , University of California, Davis , Davis , California 95616 , United States
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13
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Harvey DJ. Analysis of carbohydrates and glycoconjugates by matrix-assisted laser desorption/ionization mass spectrometry: An update for 2011-2012. MASS SPECTROMETRY REVIEWS 2017; 36:255-422. [PMID: 26270629 DOI: 10.1002/mas.21471] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Accepted: 01/15/2015] [Indexed: 06/04/2023]
Abstract
This review is the seventh update of the original article published in 1999 on the application of MALDI mass spectrometry to the analysis of carbohydrates and glycoconjugates and brings coverage of the literature to the end of 2012. General aspects such as theory of the MALDI process, matrices, derivatization, MALDI imaging, and fragmentation are covered in the first part of the review and applications to various structural types constitute the remainder. The main groups of compound are oligo- and poly-saccharides, glycoproteins, glycolipids, glycosides, and biopharmaceuticals. Much of this material is presented in tabular form. Also discussed are medical and industrial applications of the technique, studies of enzyme reactions, and applications to chemical synthesis. © 2015 Wiley Periodicals, Inc. Mass Spec Rev 36:255-422, 2017.
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Affiliation(s)
- David J Harvey
- Department of Biochemistry, Oxford Glycobiology Institute, University of Oxford, Oxford, OX1 3QU, UK
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14
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Kim KJ, Kim YW, Park HG, Hwang CH, Park IY, Choi KY, Yang YH, Kim YH, Kim YG. A MALDI-MS-based quantitative glycoprofiling method on a 96-well plate platform. J IND ENG CHEM 2017. [DOI: 10.1016/j.jiec.2016.10.025] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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15
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Affiliation(s)
- Stefan Gaunitz
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
| | - Gabe Nagy
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
| | - Nicola L. B. Pohl
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
| | - Milos V. Novotny
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
- Regional Center for Applied Molecular Oncology, Masaryk Memorial Oncological Institute, 656 53 Brno, Czech Republic
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16
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Stine KJ. Application of Porous Materials to Carbohydrate Chemistry and Glycoscience. Adv Carbohydr Chem Biochem 2017; 74:61-136. [PMID: 29173727 DOI: 10.1016/bs.accb.2017.10.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
There is a growing interest in using a range of porous materials to meet research needs in carbohydrate chemistry and glycoscience in general. Among the applications of porous materials reviewed in this chapter, enrichment of glycans from biological samples prior to separation and analysis by mass spectrometry is a major emphasis. Porous materials offer high surface area, adjustable pore sizes, and tunable surface chemistry for interacting with glycans, by boronate affinity, hydrophilic interactions, molecular imprinting, and polar interactions. Among the materials covered in this review are mesoporous silica and related materials, porous graphitic carbon, mesoporous carbon, porous polymers, and nanoporous gold. In some applications, glycans are enzymatically or chemically released from glycoproteins or glycopeptides, and the porous materials have the advantage of size selectivity admitting only the glycans into the pores and excluding proteins. Immobilization of lectins onto porous materials of suitable pore size allows for the use of lectin-carbohydrate interactions in capture or separation of glycoproteins. Porous material surfaces modified with carbohydrates can be used for the selective capture of lectins. Controlled release of therapeutics from porous materials mediated by glycans has been reported, and so has therapeutic targeting using carbohydrate-modified porous particles. Additional applications of porous materials in glycoscience include their use in the supported synthesis of oligosaccharides and in the development of biosensors for glycans.
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17
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Shubhakar A, Kozak RP, Reiding KR, Royle L, Spencer DIR, Fernandes DL, Wuhrer M. Automated High-Throughput Permethylation for Glycosylation Analysis of Biologics Using MALDI-TOF-MS. Anal Chem 2016; 88:8562-9. [PMID: 27479043 DOI: 10.1021/acs.analchem.6b01639] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Monitoring glycoprotein therapeutics for changes in glycosylation throughout the drug's life cycle is vital, as glycans significantly modulate the stability, biological activity, serum half-life, safety, and immunogenicity. Biopharma companies are increasingly adopting Quality by Design (QbD) frameworks for measuring, optimizing, and controlling drug glycosylation. Permethylation of glycans prior to analysis by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS) is a valuable tool for glycan characterization and for screening of large numbers of samples in QbD drug realization. However, the existing protocols for manual permethylation and liquid-liquid extraction (LLE) steps are labor intensive and are thus not practical for high-throughput (HT) studies. Here we present a glycan permethylation protocol, based on 96-well microplates, that has been developed into a kit suitable for HT work. The workflow is largely automated using a liquid handling robot and includes N-glycan release, enrichment of N-glycans, permethylation, and LLE. The kit has been validated according to industry analytical performance guidelines and applied to characterize biopharmaceutical samples, including IgG4 monoclonal antibodies (mAbs) and recombinant human erythropoietin (rhEPO). The HT permethylation enabled glycan characterization and relative quantitation with minimal side reactions: the MALDI-TOF-MS profiles obtained were in good agreement with hydrophilic liquid interaction chromatography (HILIC) and ultrahigh performance liquid chromatography (UHPLC) data. Automated permethylation and extraction of 96 glycan samples was achieved in less than 5 h and automated data acquisition on MALDI-TOF-MS took on average less than 1 min per sample. This automated and HT glycan preparation and permethylation showed to be convenient, fast, and reliable and can be applied for drug glycan profiling and clinical glycan biomarker studies.
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Affiliation(s)
- Archana Shubhakar
- Ludger Ltd. , Culham Science Centre, Abingdon, Oxfordshire, United Kingdom.,Division of BioAnalytical Chemistry, VU University Amsterdam , De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Radoslaw P Kozak
- Ludger Ltd. , Culham Science Centre, Abingdon, Oxfordshire, United Kingdom
| | - Karli R Reiding
- Leiden University Medical Center , Center for Proteomics and Metabolomics, Leiden, The Netherlands
| | - Louise Royle
- Ludger Ltd. , Culham Science Centre, Abingdon, Oxfordshire, United Kingdom
| | - Daniel I R Spencer
- Ludger Ltd. , Culham Science Centre, Abingdon, Oxfordshire, United Kingdom
| | - Daryl L Fernandes
- Ludger Ltd. , Culham Science Centre, Abingdon, Oxfordshire, United Kingdom
| | - Manfred Wuhrer
- Leiden University Medical Center , Center for Proteomics and Metabolomics, Leiden, The Netherlands.,Division of BioAnalytical Chemistry, VU University Amsterdam , De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
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18
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Yamamoto S, Kinoshita M, Suzuki S. Current landscape of protein glycosylation analysis and recent progress toward a novel paradigm of glycoscience research. J Pharm Biomed Anal 2016; 130:273-300. [PMID: 27461579 DOI: 10.1016/j.jpba.2016.07.015] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2016] [Revised: 07/09/2016] [Accepted: 07/09/2016] [Indexed: 12/25/2022]
Abstract
This review covers the basics and some applications of methodologies for the analysis of glycoprotein glycans. Analytical techniques used for glycoprotein glycans, including liquid chromatography (LC), capillary electrophoresis (CE), mass spectrometry (MS), and high-throughput analytical methods based on microfluidics, were described to supply the essentials about biopharmaceutical and biomarker glycoproteins. We will also describe the MS analysis of glycoproteins and glycopeptides as well as the chemical and enzymatic releasing methods of glycans from glycoproteins and the chemical reactions used for the derivatization of glycans. We hope the techniques have accommodated most of the requests from glycoproteomics researchers.
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Affiliation(s)
- Sachio Yamamoto
- Faculty of Pharmaceutical Sciences, Kinki University, 3-4-1, Kowakae, Higashi-osaka, Osaka, 577-8502, Japan.
| | - Mitsuhiro Kinoshita
- Faculty of Pharmaceutical Sciences, Kinki University, 3-4-1, Kowakae, Higashi-osaka, Osaka, 577-8502, Japan
| | - Shigeo Suzuki
- Faculty of Pharmaceutical Sciences, Kinki University, 3-4-1, Kowakae, Higashi-osaka, Osaka, 577-8502, Japan
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19
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Dong Q, Yan X, Liang Y, Stein SE. In-Depth Characterization and Spectral Library Building of Glycopeptides in the Tryptic Digest of a Monoclonal Antibody Using 1D and 2D LC–MS/MS. J Proteome Res 2016; 15:1472-86. [DOI: 10.1021/acs.jproteome.5b01046] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Qian Dong
- Biomolecular
Measurement
Division, National Institute of Standards and Technology, 100 Bureau
Drive, Stop 8362, Gaithersburg, Maryland 20899, United States
| | - Xinjian Yan
- Biomolecular
Measurement
Division, National Institute of Standards and Technology, 100 Bureau
Drive, Stop 8362, Gaithersburg, Maryland 20899, United States
| | - Yuxue Liang
- Biomolecular
Measurement
Division, National Institute of Standards and Technology, 100 Bureau
Drive, Stop 8362, Gaithersburg, Maryland 20899, United States
| | - Stephen E. Stein
- Biomolecular
Measurement
Division, National Institute of Standards and Technology, 100 Bureau
Drive, Stop 8362, Gaithersburg, Maryland 20899, United States
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20
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Proteomics discovery of radioresistant cancer biomarkers for radiotherapy. Cancer Lett 2015; 369:289-97. [DOI: 10.1016/j.canlet.2015.09.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Revised: 09/08/2015] [Accepted: 09/23/2015] [Indexed: 12/28/2022]
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21
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Zhu J, Wu J, Yin H, Marrero J, Lubman DM. Mass Spectrometric N-Glycan Analysis of Haptoglobin from Patient Serum Samples Using a 96-Well Plate Format. J Proteome Res 2015; 14:4932-9. [PMID: 26448449 DOI: 10.1021/acs.jproteome.5b00662] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Alterations in glycosylation of serum glycoproteins can provide unique and highly specific fingerprints of malignancy. Our previous mass spectrometric study revealed that the bifucosylation level of serum haptoglobin was distinctly increased in hepatocellular carcinoma (HCC) patients versus liver cirrhosis of all three major etiologies. We have thus developed a method for the analysis of large numbers of serum samples based on a 96-well plate platform for the evaluation of fucosylation changes of serum haptoglobin between HCC versus cirrhosis. Haptoglobin was isolated from the serum of individual patient samples based on an HPLC column immobilized with antihaptoglobin antibody via hydrazide immobilization chemistry. Only 10 μL of serum was required for glycan extraction and processing for MALDI-QIT mass spectrometry analysis using the 96-well plate format. The bifucosylation degrees of haptoglobin in individuals were calculated using a quantitative glycomics method. The MS data confirmed that the bifucosylated tetra-anntenary glycan was upregulated in HCC samples of all etiologies. This study provides a parallel method for processing glycan content for haptoglobin and evaluating detailed changes in glycan structures for a potentially large cohort of clinical serum samples.
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Affiliation(s)
- Jianhui Zhu
- Department of Surgery, University of Michigan Medical Center , 1150 West Medical Center Drive, Ann Arbor, Michigan 48109, United States
| | - Jing Wu
- Department of Surgery, University of Michigan Medical Center , 1150 West Medical Center Drive, Ann Arbor, Michigan 48109, United States
| | - Haidi Yin
- Department of Surgery, University of Michigan Medical Center , 1150 West Medical Center Drive, Ann Arbor, Michigan 48109, United States
| | - Jorge Marrero
- Department of Internal Medicine, UT Southwestern Medical Center , 5323 Harry Hines Boulevard, Dallas, Texas 75390, United States
| | - David M Lubman
- Department of Surgery, University of Michigan Medical Center , 1150 West Medical Center Drive, Ann Arbor, Michigan 48109, United States
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22
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A lectin-based isolation/enrichment strategy for improved coverage of N-glycan analysis. Carbohydr Res 2015; 416:7-13. [DOI: 10.1016/j.carres.2015.08.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Revised: 07/28/2015] [Accepted: 08/12/2015] [Indexed: 11/18/2022]
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23
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Xue X, Zhao Y, Zhang X, Zhang C, Kumar A, Zhang X, Zou G, Wang PC, Zhang J, Liang XJ. Phenylboronic acid-functionalized magnetic nanoparticles for one-step saccharides enrichment and mass spectrometry analysis. BIOPHYSICS REPORTS 2015; 1:61-70. [PMID: 26942220 PMCID: PMC4762129 DOI: 10.1007/s41048-015-0002-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2015] [Accepted: 04/01/2015] [Indexed: 11/16/2022] Open
Abstract
Abstract In this work, 2-(2-aminoethoxy) ethanol-blocked phenylboronic acid-functionalized magnetic nanoparticles (blocked PMNPs) were fabricated for selective enrichment of different types of saccharides. The phenylboronic acid was designed for capturing the cis-diols moieties on saccharides molecules, and the 2-(2-aminoethoxy) ethanol can deplete the nonspecific absorption of peptides and proteins which always coexisted with saccharides. For mass spectrometry analysis, the PMNPs bound saccharides can be directly applied onto the MALDI plate with matrix without removing the PMNPs. By PMNPs, the simple saccharide (glucose) could be detected in pmol level. The complex saccharides can also be reliably purified and analyzed; 16 different N-glycans were successfully identified from ovalbumin, and the high-abundance N-glycans can be detected even when the ovalbumin was in very low concentration (2 μg). In human milk, ten different oligosaccharides were identified, and the lactose can still be detected when the human milk concentration was low to 0.01 μL. Graphical Abstract ![]()
Electronic supplementary material The online version of this article (doi:10.1007/s41048-015-0002-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Xiangdong Xue
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Beijing, 100190 China
| | - Yuanyuan Zhao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Beijing, 100190 China
| | - Xu Zhang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Beijing, 100190 China
| | - Chunqiu Zhang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Beijing, 100190 China
| | - Anil Kumar
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Beijing, 100190 China
| | - Xiaoning Zhang
- Laboratory of Pharmaceutics, School of Medicine, Tsinghua University, Beijing, 100084 China
| | - Guozhang Zou
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Beijing, 100190 China
| | - Paul C Wang
- Fu Jen Catholic University, Taipei, 24205 China
| | - Jinchao Zhang
- College of Chemistry & Environmental Science, Chemical Biology Key Laboratory of Hebei Province, Hebei University, Baoding, 071002 China
| | - Xing-Jie Liang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Beijing, 100190 China
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24
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Serna J, García-Seisdedos D, Alcázar A, Lasunción MÁ, Busto R, Pastor Ó. Quantitative lipidomic analysis of plasma and plasma lipoproteins using MALDI-TOF mass spectrometry. Chem Phys Lipids 2015; 189:7-18. [PMID: 26004846 DOI: 10.1016/j.chemphyslip.2015.05.005] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2015] [Revised: 04/24/2015] [Accepted: 05/18/2015] [Indexed: 11/16/2022]
Abstract
Knowledge of the plasma lipid composition is essential to clarify the specific roles of different lipid species in various pathophysiological processes. In this study, we developed an analytical strategy combining high-performance liquid chromatography with evaporative light scattering detection (HPLC-ELSD) and off-line coupling with matrix-assisted laser desorption/ionization with time-of-flight mass spectrometry (MALDI-TOF/MS) to determine the composition of plasma and major lipoproteins at two levels, lipid classes and lipid species. We confirmed the suitability of MALDI-TOF/MS as a quantitative measurement tool studying the linearity and repeatability for triglycerides (TG), phosphatidylethanolamine (PE) and phosphatidylcholine (PC). Moreover, data obtained with this method were correlated with other lipid classes and species measurements using currently available technologies. To establish the potential utility of our approach, human plasma very low density- (VLDL), low density- (LDL) and high density- (HDL) lipoproteins from 10 healthy donors were separated using ultracentrifugation, and compositions of nine lipid classes, cholesteryl esters (CE), TG, free cholesterol (FC), PE, phosphatidylinositol (PI), sulfatides (S), PC, lysophosphatidylcholine (LPC) and sphingomyelin (SM), analyzed. In total, 157 lipid species in plasma, 182 in LDL, 171 in HDL, and 148 in VLDL were quantified. The lipidomic profile was consistent with known differences in lipid classes, but also revealed unexpected differences in lipid species distribution of lipoproteins, particularly for LPC and SM. In summary, the methodology developed in this study constitutes a valid approach to determine the lipidomic composition of plasma and lipoproteins.
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Affiliation(s)
- Jorge Serna
- Servicio de Bioquímica Clínica, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain
| | - David García-Seisdedos
- Servicio de Bioquímica Clínica, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain
| | - Alberto Alcázar
- Servicio de Bioquímica-Investigación, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain
| | - Miguel Ángel Lasunción
- Servicio de Bioquímica-Investigación, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain; CIBER de Fisiología de la Obesidad y Nutrición (CIBERobn), ISCIII, Spain
| | - Rebeca Busto
- Servicio de Bioquímica-Investigación, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain; CIBER de Fisiología de la Obesidad y Nutrición (CIBERobn), ISCIII, Spain
| | - Óscar Pastor
- Servicio de Bioquímica Clínica, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain.
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25
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Park HM, Hwang MP, Kim YW, Kim KJ, Jin JM, Kim YH, Yang YH, Lee KH, Kim YG. Mass spectrometry-based N-linked glycomic profiling as a means for tracking pancreatic cancer metastasis. Carbohydr Res 2015; 413:5-11. [PMID: 26057990 DOI: 10.1016/j.carres.2015.04.019] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Revised: 04/08/2015] [Accepted: 04/22/2015] [Indexed: 11/17/2022]
Abstract
The aberrant glycosylation profile on the surface of cancer cells has been recognized for its potential diagnostic value towards assessing tumor progression. In this study, we initially investigate N-glycan profiles on the surface of normal (HPDE) and cancerous (Capan-1, Panc-1, and MIA PaCa-2) pancreatic cell lines, which are from different sites of pancreatic tumor. The enzymatically deglycosylated total N-glycans are permethylated via a quantitative solid-phase method and then analyzed by using MALDI-TOF MS and MALDI-QIT-TOF MS. We demonstrate that the level of high-mannose type glycans is higher among Capan-1 cells-pancreatic cancer cells that have metastasized to the liver-than that observed among Panc-1 and MIA PaCa-2 cells-pancreatic cancer cells from the pancreas duct head and tail regions, respectively. Furthermore, the relative abundance of highly-branched sialyted N-glycans is significantly up-regulated on Panc-1 and MIA PaCa-2 pancreatic cancer cells compared to that of normal HPDE pancreas cells. Taken together, these results indicate that specific N-glycosylation profile changes in pancreatic cancer cells can be used to not only distinguish between normal and cancerous cells but also provide more information on their location and metastatic potential.
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Affiliation(s)
- Hae-Min Park
- School of Chemical and Biological Engineering, Seoul National University, Seoul 151-742, South Korea
| | - Mintai Peter Hwang
- Biomedical Research Institute, Korea Institute of Science and Technology (KIST), 5 Hwarangno 14-gil, Seongbuk-gu, Seoul 136-791, South Korea
| | - Yoon-Woo Kim
- Department of Chemical Engineering, Soongsil University, 369 Sangdo-Ro, Seoul 156-743, South Korea
| | - Kyoung-Jin Kim
- Department of Chemical Engineering, Soongsil University, 369 Sangdo-Ro, Seoul 156-743, South Korea
| | - Jang Mi Jin
- Biomedical Omics Team, Korea Basic Science Institute, Ochang 363-883, South Korea
| | - Young Hwan Kim
- Biomedical Omics Team, Korea Basic Science Institute, Ochang 363-883, South Korea; Graduate School of Analytical Science and Technology, Chungnam National University, Daejeon 305-764, South Korea; Department of Bio-Analytical Science, University of Science and Technology, Daejeon 305-333, South Korea
| | - Yung-Hun Yang
- Department of Microbial Engineering, College of Engineering, Konkuk University, Seoul 143-701, South Korea
| | - Kwan Hyi Lee
- Biomedical Research Institute, Korea Institute of Science and Technology (KIST), 5 Hwarangno 14-gil, Seongbuk-gu, Seoul 136-791, South Korea.
| | - Yun-Gon Kim
- Department of Chemical Engineering, Soongsil University, 369 Sangdo-Ro, Seoul 156-743, South Korea.
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26
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Kim KJ, Kim YW, Kim YG, Park HM, Jin JM, Hwan Kim Y, Yang YH, Kyu Lee J, Chung J, Lee SG, Saghatelian A. Stable isotopic labeling-based quantitative targeted glycomics (i-QTaG). Biotechnol Prog 2015; 31:840-8. [DOI: 10.1002/btpr.2078] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Revised: 02/26/2015] [Indexed: 02/01/2023]
Affiliation(s)
- Kyoung-Jin Kim
- Dept. of Chemical Engineering; Soongsil University; Seoul 156-743 Republic of Korea
| | - Yoon-Woo Kim
- Dept. of Chemical Engineering; Soongsil University; Seoul 156-743 Republic of Korea
| | - Yun-Gon Kim
- Dept. of Chemical Engineering; Soongsil University; Seoul 156-743 Republic of Korea
| | - Hae-Min Park
- School of Chemical and Biological Engineering; Seoul National University; Seoul 151-742 Republic of Korea
| | - Jang Mi Jin
- Div. of Mass Spectrometry Research; Korea Basic Science Institute; Ochang 363-883 Republic of Korea
- Dept. of Bio-Analytical Science; University of Science and Technology; Daejeon 305-764 Republic of Korea
| | - Young Hwan Kim
- Div. of Mass Spectrometry Research; Korea Basic Science Institute; Ochang 363-883 Republic of Korea
- Dept. of Bio-Analytical Science; University of Science and Technology; Daejeon 305-764 Republic of Korea
| | - Yung-Hun Yang
- Dept. of Microbial Engineering, College of Engineering; Konkuk University; Seoul 143-701 Republic of Korea
| | - Jun Kyu Lee
- Dept. of Internal Medicine; Dongguk University Ilsan Hospital, College of Medicine, Dongguk University; Goyang 401-773 Si Republic of Korea
| | - Junho Chung
- Dept. of Biochemistry and Molecular Biology and Cancer Research Institute; Seoul National University College of Medicine; Seoul 110-799 Republic of Korea
| | - Sun-Gu Lee
- School of Chemical and Biomolecular Engineering; Pusan National University; Pusan 609-735 Republic of Korea
| | - Alan Saghatelian
- Clayton Foundations Laboratories for Peptide Biology; Salk Institute; La Jolla CA 92037
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27
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Zhou S, Hu Y, DeSantos-Garcia JL, Mechref Y. Quantitation of permethylated N-glycans through multiple-reaction monitoring (MRM) LC-MS/MS. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2015; 26:596-603. [PMID: 25698222 PMCID: PMC4514032 DOI: 10.1007/s13361-014-1054-1] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Revised: 11/09/2014] [Accepted: 11/09/2014] [Indexed: 05/20/2023]
Abstract
The important biological roles of glycans and their implications in disease development and progression have created a demand for the development of sensitive quantitative glycomics methods. Quantitation of glycans existing at low abundance is still analytically challenging. In this study, an N-linked glycans quantitation method using multiple-reaction monitoring (MRM) on a triple quadrupole instrument was developed. Optimum normalized collision energy (CE) for both sialylated and fucosylated N-glycan was determined to be 30%, whereas it was found to be 35% for either fucosylated or sialylated N-glycans. The optimum CE for mannose and complex type N-glycan was determined to be 35%. Additionally, the use of three transitions was shown to facilitate reliable quantitation. A total of 88 N-glycan compositions in human blood serum were quantified using this MRM approach. Reliable detection and quantitation of these glycans was achieved when the equivalence of 0.005 μL of blood serum was analyzed. Accordingly, N-glycans down to the 100th of a μL level can be reliably quantified in pooled human blood serum, spanning a dynamic concentration range of three orders of magnitude. MRM was also effectively utilized to quantitatively compare the expression of N-glycans derived from brain-targeting breast carcinoma cells (MDA-MB-231BR) and metastatic breast cancer cells (MDA-MB-231). Thus, the described MRM method of permethylated N-glycan enables a rapid and reliable identification and quantitation of glycans derived from glycoproteins purified or present in complex biological samples.
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Affiliation(s)
| | | | | | - Yehia Mechref
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409
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28
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Moh ES, Thaysen-Andersen M, Packer NH. Relative versus absolute quantitation in disease glycomics. Proteomics Clin Appl 2015; 9:368-82. [DOI: 10.1002/prca.201400184] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Revised: 12/21/2014] [Accepted: 02/10/2015] [Indexed: 12/18/2022]
Affiliation(s)
- Edward S.X. Moh
- Department of Chemistry and Biomolecular Sciences; Macquarie University; Sydney Australia
| | | | - Nicolle H. Packer
- Department of Chemistry and Biomolecular Sciences; Macquarie University; Sydney Australia
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29
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Analytical method for determining relative chaperone activity using an ovalbumin-conjugated column. Biochem Biophys Res Commun 2015; 456:333-8. [DOI: 10.1016/j.bbrc.2014.11.081] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Accepted: 11/22/2014] [Indexed: 11/16/2022]
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30
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Lazar IM, Deng J, Ikenishi F, Lazar AC. Exploring the glycoproteomics landscape with advanced MS technologies. Electrophoresis 2014; 36:225-37. [PMID: 25311661 DOI: 10.1002/elps.201400400] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Revised: 09/28/2014] [Accepted: 09/29/2014] [Indexed: 12/13/2022]
Abstract
The advance of glycoproteomic technologies has offered unique insights into the importance of glycosylation in determining the functional roles of a protein within a cell. Biologically active glycoproteins include the categories of enzymes, hormones, proteins involved in cell proliferation, cell membrane proteins involved in cell-cell recognition, and communication events or secreted proteins, just to name a few. The recent progress in analytical instrumentation, methodologies, and computational approaches has enabled a detailed exploration of glycan structure, connectivity, and heterogeneity, underscoring the staggering complexity of the glycome repertoire in a cell. A variety of approaches involving the use of spectroscopy, MS, separation, microfluidic, and microarray technologies have been used alone or in combination to tackle the glycoproteome challenge, the research results of these efforts being captured in an overwhelming number of annual publications. This work is aimed at reviewing the major developments and accomplishments in the field of glycoproteomics, with focus on the most recent advancements (2012-2014) that involve the use of capillary separations and MS detection.
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Affiliation(s)
- Iulia M Lazar
- Department of Biological Sciences, Virginia Tech, Blacksburg, VA, USA
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31
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High-Throughput Analysis and Automation for Glycomics Studies. Chromatographia 2014; 78:321-333. [PMID: 25814696 PMCID: PMC4363487 DOI: 10.1007/s10337-014-2803-9] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Revised: 10/17/2014] [Accepted: 10/17/2014] [Indexed: 11/12/2022]
Abstract
This review covers advances in analytical technologies for high-throughput (HTP) glycomics. Our focus is on structural studies of glycoprotein glycosylation to support biopharmaceutical realization and the discovery of glycan biomarkers for human disease. For biopharmaceuticals, there is increasing use of glycomics in Quality by Design studies to help optimize glycan profiles of drugs with a view to improving their clinical performance. Glycomics is also used in comparability studies to ensure consistency of glycosylation both throughout product development and between biosimilars and innovator drugs. In clinical studies there is as well an expanding interest in the use of glycomics—for example in Genome Wide Association Studies—to follow changes in glycosylation patterns of biological tissues and fluids with the progress of certain diseases. These include cancers, neurodegenerative disorders and inflammatory conditions. Despite rising activity in this field, there are significant challenges in performing large scale glycomics studies. The requirement is accurate identification and quantitation of individual glycan structures. However, glycoconjugate samples are often very complex and heterogeneous and contain many diverse branched glycan structures. In this article we cover HTP sample preparation and derivatization methods, sample purification, robotization, optimized glycan profiling by UHPLC, MS and multiplexed CE, as well as hyphenated techniques and automated data analysis tools. Throughout, we summarize the advantages and challenges with each of these technologies. The issues considered include reliability of the methods for glycan identification and quantitation, sample throughput, labor intensity, and affordability for large sample numbers.
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32
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Yang JM, Ai J, Bao Y, Yuan Z, Qin Y, Xie YW, Tao D, Fu D, Peng Y. Investigation of the correlation between charge and glycosylation of IgG1 variants by liquid chromatography–mass spectrometry. Anal Biochem 2014; 448:82-91. [DOI: 10.1016/j.ab.2013.11.020] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2013] [Revised: 11/15/2013] [Accepted: 11/18/2013] [Indexed: 10/26/2022]
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33
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Keogh D, Thompson R, Larragy R, McMahon K, O'Connell M, O'Connor B, Clarke P. Generating novel recombinant prokaryotic lectins with altered carbohydrate binding properties through mutagenesis of the PA-IL protein from Pseudomonas aeruginosa. Biochim Biophys Acta Gen Subj 2014; 1840:2091-104. [PMID: 24462641 DOI: 10.1016/j.bbagen.2014.01.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Revised: 12/17/2013] [Accepted: 01/13/2014] [Indexed: 12/29/2022]
Abstract
BACKGROUND Prokaryotic lectins offer significant advantages over eukaryotic lectins for the development of enhanced glycoselective tools. Amenability to recombinant expression in Escherichia coli simplifies their production and presents opportunities for further genetic manipulation to create novel recombinant prokaryotic lectins (RPLs) with altered or enhanced carbohydrate binding properties. This study explored the potential of the α-galactophilic PA-IL lectin from Pseudomonas aeruginosa for use as a scaffold structure for the generation of novel RPLs. METHOD Specific amino acid residues in the carbohydrate binding site of a recombinant PA-IL protein were randomly substituted by site-directed mutagenesis. The resulting expression clones were then functionally screened to identify clones expressing rPA-IL proteins with altered carbohydrate binding properties. RESULTS This study generated RPLs exhibiting diverse carbohydrate binding activities including specificity and high affinity for β-linked galactose and N-acetyl-lactosamine (LacNAc) displayed by N-linked glycans on glycoprotein targets. Key amino acid substitutions were identified and linked with specific carbohydrate binding activities. Ultimately, the utility of these novel RPLs for glycoprotein analysis and for selective fractionation and isolation of glycoproteins and their glycoforms was demonstrated. CONCLUSIONS The carbohydrate binding properties of the PA-IL protein can be significantly altered using site-directed mutagenesis strategies to generate novel RPLs with diverse carbohydrate binding properties. GENERAL SIGNIFICANCE The novel RPLs reported would find a broad range of applications in glycobiology, diagnostics and in the analysis of biotherapeutics. The ability to readily produce these RPLs in gram quantities could enable them to find larger scale applications for glycoprotein or biotherapeutic purification.
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Affiliation(s)
- Damien Keogh
- School of Biotechnology, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Roisin Thompson
- School of Biotechnology, Dublin City University, Glasnevin, Dublin 9, Ireland; Irish Separation Science Cluster (ISSC), National Centre for Sensor Research (NCSR), Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Ruth Larragy
- School of Biotechnology, Dublin City University, Glasnevin, Dublin 9, Ireland; Irish Separation Science Cluster (ISSC), National Centre for Sensor Research (NCSR), Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Kenneth McMahon
- School of Biotechnology, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Michael O'Connell
- School of Biotechnology, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Brendan O'Connor
- School of Biotechnology, Dublin City University, Glasnevin, Dublin 9, Ireland; Irish Separation Science Cluster (ISSC), National Centre for Sensor Research (NCSR), Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Paul Clarke
- School of Biotechnology, Dublin City University, Glasnevin, Dublin 9, Ireland; Irish Separation Science Cluster (ISSC), National Centre for Sensor Research (NCSR), Dublin City University, Glasnevin, Dublin 9, Ireland.
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Yang Y, Barendregt A, Kamerling JP, Heck AJR. Analyzing protein micro-heterogeneity in chicken ovalbumin by high-resolution native mass spectrometry exposes qualitatively and semi-quantitatively 59 proteoforms. Anal Chem 2013; 85:12037-45. [PMID: 24229052 PMCID: PMC3880056 DOI: 10.1021/ac403057y] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2013] [Accepted: 11/14/2013] [Indexed: 01/18/2023]
Abstract
Taking chicken Ovalbumin as a prototypical example of a eukaryotic protein we use high-resolution native electrospray ionization mass spectrometry on a modified Exactive Orbitrap mass analyzer to qualitatively and semiquantitatively dissect 59 proteoforms in the natural protein. This variety is largely induced by the presence of multiple phosphorylation sites and a glycosylation site that we find to be occupied by at least 45 different glycan structures. Mass analysis of the intact protein in its native state is straightforward and fast, requires very little sample preparation, and provides a direct view on the stoichiometry of all different coappearing modifications that are distinguishable in mass. As such, this proof-of-principal analysis shows that native electrospray ionization mass spectrometry in combination with an Orbitrap mass analyzer offers a means to characterize proteins in a manner highly complementary to standard bottom-up shot-gun proteome analysis.
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Affiliation(s)
- Yang Yang
- Biomolecular Mass
Spectrometry and Proteomics, Bijvoet Center for Biomolecular Research
and Utrecht Institute for Pharmaceutical Sciences, University
of Utrecht, Padualaan
8, 3584 CH Utrecht, The Netherlands
- Netherlands
Proteomics Center, Padualaan
8, 3584 CH Utrecht, The Netherlands
| | - Arjan Barendregt
- Biomolecular Mass
Spectrometry and Proteomics, Bijvoet Center for Biomolecular Research
and Utrecht Institute for Pharmaceutical Sciences, University
of Utrecht, Padualaan
8, 3584 CH Utrecht, The Netherlands
- Netherlands
Proteomics Center, Padualaan
8, 3584 CH Utrecht, The Netherlands
| | - Johannis P. Kamerling
- Biomolecular Mass
Spectrometry and Proteomics, Bijvoet Center for Biomolecular Research
and Utrecht Institute for Pharmaceutical Sciences, University
of Utrecht, Padualaan
8, 3584 CH Utrecht, The Netherlands
| | - Albert J. R. Heck
- Biomolecular Mass
Spectrometry and Proteomics, Bijvoet Center for Biomolecular Research
and Utrecht Institute for Pharmaceutical Sciences, University
of Utrecht, Padualaan
8, 3584 CH Utrecht, The Netherlands
- Netherlands
Proteomics Center, Padualaan
8, 3584 CH Utrecht, The Netherlands
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35
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Qian Y, Wang Y, Zhang X, Zhou L, Zhang Z, Xu J, Ruan Y, Ren S, Xu C, Gu J. Quantitative Analysis of Serum IgG Galactosylation Assists Differential Diagnosis of Ovarian Cancer. J Proteome Res 2013; 12:4046-55. [PMID: 23855414 DOI: 10.1021/pr4003992] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
| | - Yisheng Wang
- Obstetrics
and Gynecology Hospital, Fudan University, Shanghai, P. R. China
| | | | | | | | | | | | | | - Congjian Xu
- Obstetrics
and Gynecology Hospital, Fudan University, Shanghai, P. R. China
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai,
P. R. China
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36
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Furukawa JI, Fujitani N, Shinohara Y. Recent advances in cellular glycomic analyses. Biomolecules 2013; 3:198-225. [PMID: 24970165 PMCID: PMC4030886 DOI: 10.3390/biom3010198] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2012] [Revised: 01/28/2013] [Accepted: 02/14/2013] [Indexed: 12/21/2022] Open
Abstract
A large variety of glycans is intricately located on the cell surface, and the overall profile (the glycome, given the entire repertoire of glycoconjugate-associated sugars in cells and tissues) is believed to be crucial for the diverse roles of glycans, which are mediated by specific interactions that control cell-cell adhesion, immune response, microbial pathogenesis and other cellular events. The glycomic profile also reflects cellular alterations, such as development, differentiation and cancerous change. A glycoconjugate-based approach would therefore be expected to streamline discovery of novel cellular biomarkers. Development of such an approach has proven challenging, due to the technical difficulties associated with the analysis of various types of cellular glycomes; however, recent progress in the development of analytical methodologies and strategies has begun to clarify the cellular glycomics of various classes of glycoconjugates. This review focuses on recent advances in the technical aspects of cellular glycomic analyses of major classes of glycoconjugates, including N- and O-linked glycans, derived from glycoproteins, proteoglycans and glycosphingolipids. Articles that unveil the glycomics of various biologically important cells, including embryonic and somatic stem cells, induced pluripotent stem (iPS) cells and cancer cells, are discussed.
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Affiliation(s)
- Jun-Ichi Furukawa
- Laboratory of Medical and Functional Glycomics, Graduate School of Advanced Life Science and Frontier Research Center for Post-Genome Science and Technology, Hokkaido University, Sapporo 001-0021, Japan
| | - Naoki Fujitani
- Laboratory of Medical and Functional Glycomics, Graduate School of Advanced Life Science and Frontier Research Center for Post-Genome Science and Technology, Hokkaido University, Sapporo 001-0021, Japan
| | - Yasuro Shinohara
- Laboratory of Medical and Functional Glycomics, Graduate School of Advanced Life Science and Frontier Research Center for Post-Genome Science and Technology, Hokkaido University, Sapporo 001-0021, Japan.
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37
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Zhang W, Han H, Bai H, Tong W, Zhang Y, Ying W, Qin W, Qian X. A Highly Efficient and Visualized Method for Glycan Enrichment by Self-Assembling Pyrene Derivative Functionalized Free Graphene Oxide. Anal Chem 2013; 85:2703-9. [DOI: 10.1021/ac303101t] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Wanjun Zhang
- National
Center for Protein Sciences Beijing, State
Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing 102206,
P.R. China
| | - Huanhuan Han
- National
Center for Protein Sciences Beijing, State
Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing 102206,
P.R. China
| | - Haihong Bai
- National
Center for Protein Sciences Beijing, State
Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing 102206,
P.R. China
| | - Wei Tong
- National
Center for Protein Sciences Beijing, State
Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing 102206,
P.R. China
| | - Yangjun Zhang
- National
Center for Protein Sciences Beijing, State
Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing 102206,
P.R. China
| | - Wantao Ying
- National
Center for Protein Sciences Beijing, State
Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing 102206,
P.R. China
| | - Weijie Qin
- National
Center for Protein Sciences Beijing, State
Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing 102206,
P.R. China
| | - Xiaohong Qian
- National
Center for Protein Sciences Beijing, State
Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing 102206,
P.R. China
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38
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Mechref Y, Hu Y, Desantos-Garcia JL, Hussein A, Tang H. Quantitative glycomics strategies. Mol Cell Proteomics 2013; 12:874-84. [PMID: 23325767 DOI: 10.1074/mcp.r112.026310] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
The correlations between protein glycosylation and many biological processes and diseases are increasing the demand for quantitative glycomics strategies enabling sensitive monitoring of changes in the abundance and structure of glycans. This is currently attained through multiple strategies employing several analytical techniques such as capillary electrophoresis, liquid chromatography, and mass spectrometry. The detection and quantification of glycans often involve labeling with ionic and/or hydrophobic reagents. This step is needed in order to enhance detection in spectroscopic and mass spectrometric measurements. Recently, labeling with stable isotopic reagents has also been presented as a very viable strategy enabling relative quantitation. The different strategies available for reliable and sensitive quantitative glycomics are herein described and discussed.
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Affiliation(s)
- Yehia Mechref
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409, USA.
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39
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Beck A, Wagner-Rousset E, Ayoub D, Van Dorsselaer A, Sanglier-Cianférani S. Characterization of Therapeutic Antibodies and Related Products. Anal Chem 2012; 85:715-36. [DOI: 10.1021/ac3032355] [Citation(s) in RCA: 445] [Impact Index Per Article: 37.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Alain Beck
- Centre d’Immunologie Pierre Fabre (CIPF), 5 Av. Napoléon III, BP 60497, 74164 Saint-Julien-en-Genevois,
France
| | - Elsa Wagner-Rousset
- Centre d’Immunologie Pierre Fabre (CIPF), 5 Av. Napoléon III, BP 60497, 74164 Saint-Julien-en-Genevois,
France
| | - Daniel Ayoub
- Centre d’Immunologie Pierre Fabre (CIPF), 5 Av. Napoléon III, BP 60497, 74164 Saint-Julien-en-Genevois,
France
| | - Alain Van Dorsselaer
- Laboratoire de Spectrométrie
de Masse BioOrganique (LSMBO), Université de Strasbourg, IPHC, 25 rue Becquerel 67087, Strasbourg, France and CNRS, UMR7178, 67037 Strasbourg, France
| | - Sarah Sanglier-Cianférani
- Laboratoire de Spectrométrie
de Masse BioOrganique (LSMBO), Université de Strasbourg, IPHC, 25 rue Becquerel 67087, Strasbourg, France and CNRS, UMR7178, 67037 Strasbourg, France
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40
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Lazar IM, Lee W, Lazar AC. Glycoproteomics on the rise: established methods, advanced techniques, sophisticated biological applications. Electrophoresis 2012; 34:113-25. [PMID: 23161435 DOI: 10.1002/elps.201200445] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2012] [Revised: 10/07/2012] [Accepted: 10/07/2012] [Indexed: 02/05/2023]
Abstract
Glycosylation is the most complex form of protein PTMs. Affected proteins may carry dozens of glycosylation sites with tens to hundreds of glycan residues attached to every site. Glycosylated proteins have many important functions in biology, from cellular to organismal levels, being involved in cell-cell signaling, cell adhesion, immune response, host-pathogen interactions, and development and growth. Glycosylation, however, expands the biological functional diversity of proteins at the expense of a tremendous increase in structural heterogeneity. Aberrant glycosylation of cell surface proteins, as well as their detectable fingerprint in plasma samples, has been associated with cancer, inflammatory and degenerative diseases, and congenital disorders of glycosylation. Therefore, there are on-going efforts directed toward developing new technologies and approaches for glycan sequencing and high-throughput analysis of glycosylated proteins in complex samples with simultaneous characterization of both the protein and glycan moieties. This work is aimed primarily at pinpointing the challenges associated with the large-scale analysis of glycoproteins and the latest developments in glycoproteomic research, with focus on recent advancements (2011-2012) in microcolumn separations and MS detection.
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Affiliation(s)
- Iulia M Lazar
- Department of Biological Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA.
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