1
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Čaval T, Heck AJR, Reiding KR. Meta-heterogeneity: Evaluating and Describing the Diversity in Glycosylation Between Sites on the Same Glycoprotein. Mol Cell Proteomics 2020; 20:100010. [PMID: 33561609 PMCID: PMC8724623 DOI: 10.1074/mcp.r120.002093] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 07/14/2020] [Accepted: 07/31/2020] [Indexed: 12/26/2022] Open
Abstract
Mass spectrometry-based glycoproteomics has gone through some incredible developments over the last few years. Technological advances in glycopeptide enrichment, fragmentation methods, and data analysis workflows have enabled the transition of glycoproteomics from a niche application, mainly focused on the characterization of isolated glycoproteins, to a mature technology capable of profiling thousands of intact glycopeptides at once. In addition to numerous biological discoveries catalyzed by the technology, we are also observing an increase in studies focusing on global protein glycosylation and the relationship between multiple glycosylation sites on the same protein. It has become apparent that just describing protein glycosylation in terms of micro- and macro-heterogeneity, respectively, the variation and occupancy of glycans at a given site, is not sufficient to describe the observed interactions between sites. In this perspective we propose a new term, meta-heterogeneity, to describe a higher level of glycan regulation: the variation in glycosylation across multiple sites of a given protein. We provide literature examples of extensive meta-heterogeneity on relevant proteins such as antibodies, erythropoietin, myeloperoxidase, and a number of serum and plasma proteins. Furthermore, we postulate on the possible biological reasons and causes behind the intriguing meta-heterogeneity observed in glycoproteins.
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Affiliation(s)
- Tomislav Čaval
- Biomolecular Mass Spectrometry and Proteomics, Bijvoet Center for Biomolecular Research and Utrecht Institute for Pharmaceutical Sciences, University of Utrecht, Utrecht, the Netherlands; Netherlands Proteomics Center, 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, Utrecht, the Netherlands; Netherlands Proteomics Center, Utrecht, the Netherlands.
| | - Karli R Reiding
- Biomolecular Mass Spectrometry and Proteomics, Bijvoet Center for Biomolecular Research and Utrecht Institute for Pharmaceutical Sciences, University of Utrecht, Utrecht, the Netherlands; Netherlands Proteomics Center, Utrecht, the Netherlands.
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2
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de Haan N, Falck D, Wuhrer M. Monitoring of immunoglobulin N- and O-glycosylation in health and disease. Glycobiology 2020; 30:226-240. [PMID: 31281930 PMCID: PMC7225405 DOI: 10.1093/glycob/cwz048] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 07/02/2019] [Accepted: 07/03/2019] [Indexed: 12/11/2022] Open
Abstract
Protein N- and O-glycosylation are well known co- and post-translational modifications of immunoglobulins. Antibody glycosylation on the Fab and Fc portion is known to influence antigen binding and effector functions, respectively. To study associations between antibody glycosylation profiles and (patho) physiological states as well as antibody functionality, advanced technologies and methods are required. In-depth structural characterization of antibody glycosylation usually relies on the separation and tandem mass spectrometric (MS) analysis of released glycans. Protein- and site-specific information, on the other hand, may be obtained by the MS analysis of glycopeptides. With the development of high-resolution mass spectrometers, antibody glycosylation analysis at the intact or middle-up level has gained more interest, providing an integrated view of different post-translational modifications (including glycosylation). Alongside the in-depth methods, there is also great interest in robust, high-throughput techniques for routine glycosylation profiling in biopharma and clinical laboratories. With an emphasis on IgG Fc glycosylation, several highly robust separation-based techniques are employed for this purpose. In this review, we describe recent advances in MS methods, separation techniques and orthogonal approaches for the characterization of immunoglobulin glycosylation in different settings. We put emphasis on the current status and expected developments of antibody glycosylation analysis in biomedical, biopharmaceutical and clinical research.
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Affiliation(s)
- Noortje de Haan
- Center for Proteomics and Metabolomics, Leiden University Medical Center, Albinusdreef 2, 2333ZA Leiden, The Netherlands
| | - David Falck
- Center for Proteomics and Metabolomics, Leiden University Medical Center, Albinusdreef 2, 2333ZA Leiden, The Netherlands
| | - Manfred Wuhrer
- Center for Proteomics and Metabolomics, Leiden University Medical Center, Albinusdreef 2, 2333ZA Leiden, The Netherlands
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3
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Momčilović A, de Haan N, Hipgrave Ederveen AL, Bondt A, Koeleman CAM, Falck D, de Neef LA, Mesker WE, Tollenaar R, de Ru A, van Veelen P, Wuhrer M, Dotz V. Simultaneous Immunoglobulin A and G Glycopeptide Profiling for High-Throughput Applications. Anal Chem 2020; 92:4518-4526. [PMID: 32091889 PMCID: PMC7252899 DOI: 10.1021/acs.analchem.9b05722] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
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Immunoglobulin (Ig)
glycosylation is recognized for its influence
on Ig turnover and effector functions. However, the large-scale profiling
of Ig glycosylation in a biomedical setting is challenged by the existence
of different Ig isotypes and subclasses, their varying serum concentrations,
and the presence of multiple glycosylation sites per Ig. Here, a high-throughput
nanoliquid chromatography (LC)- mass spectrometry (MS)-based method
for simultaneous analysis of IgG and IgA glycopeptides was developed
and applied on a serum sample set from 185 healthy donors. Sample
preparation from minute amounts of serum was performed in 96-well
plate format. Prior to trypsin digestion, IgG and IgA were enriched
simultaneously, followed by a one-step denaturation, reduction, and
alkylation. The obtained nanoLC-MS data were subjected to semiautomated,
targeted feature integration and quality control. The combined and
simplified protocol displayed high overall method repeatability, as
assessed using pooled plasma and serum standards. Taking all samples
together, 143 individual N- and O-glycopeptides were reliably quantified. These glycopeptides were
attributable to 11 different peptide backbones, derived from IgG1,
IgG2/3, IgG4, IgA1, IgA2, and the joining chain from dimeric IgA.
Using this method, novel associations were found between IgA N- and O-glycosylation and age. Furthermore,
previously reported associations of IgG Fc glycosylation with age
in healthy individuals were confirmed. In conclusion, the new method
paves the way for high-throughput multiprotein plasma glycoproteomics.
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Affiliation(s)
- Ana Momčilović
- Center for Proteomics and Metabolomics, Leiden University Medical Center, 2300RC Leiden, The Netherlands
| | - Noortje de Haan
- Center for Proteomics and Metabolomics, Leiden University Medical Center, 2300RC Leiden, The Netherlands
| | - Agnes L Hipgrave Ederveen
- Center for Proteomics and Metabolomics, Leiden University Medical Center, 2300RC Leiden, The Netherlands
| | - Albert Bondt
- Center for Proteomics and Metabolomics, Leiden University Medical Center, 2300RC Leiden, The Netherlands
| | - Carolien A M Koeleman
- Center for Proteomics and Metabolomics, Leiden University Medical Center, 2300RC Leiden, The Netherlands
| | - David Falck
- Center for Proteomics and Metabolomics, Leiden University Medical Center, 2300RC Leiden, The Netherlands
| | - Louise A de Neef
- Center for Proteomics and Metabolomics, Leiden University Medical Center, 2300RC Leiden, The Netherlands
| | - Wilma E Mesker
- Department of Surgery, Leiden University Medical Center, 2300RC Leiden, The Netherlands
| | - Rob Tollenaar
- Department of Surgery, Leiden University Medical Center, 2300RC Leiden, The Netherlands
| | - Arnoud de Ru
- Center for Proteomics and Metabolomics, Leiden University Medical Center, 2300RC Leiden, The Netherlands
| | - Peter van Veelen
- Center for Proteomics and Metabolomics, Leiden University Medical Center, 2300RC Leiden, The Netherlands
| | - Manfred Wuhrer
- Center for Proteomics and Metabolomics, Leiden University Medical Center, 2300RC Leiden, The Netherlands
| | - Viktoria Dotz
- Center for Proteomics and Metabolomics, Leiden University Medical Center, 2300RC Leiden, The Netherlands
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4
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Plomp R, de Haan N, Bondt A, Murli J, Dotz V, Wuhrer M. Comparative Glycomics of Immunoglobulin A and G From Saliva and Plasma Reveals Biomarker Potential. Front Immunol 2018; 9:2436. [PMID: 30405629 PMCID: PMC6206042 DOI: 10.3389/fimmu.2018.02436] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 10/02/2018] [Indexed: 12/19/2022] Open
Abstract
The N-glycosylation of immunoglobulin (Ig) G, the major antibody in the circulation of human adults, is well known for its influence on antibody effector functions and its alterations with various diseases. In contrast, knowledge on the role of glycans attached to IgA, which is a key immune defense agent in secretions, is very scarce. In this study we aimed to characterize the glycosylation of salivary (secretory) IgA, including the IgA joining chain (JC), and secretory component (SC) and to compare IgA and IgG glycosylation between human plasma and saliva samples to gain a first insight into oral cavity-specific antibody glycosylation. Plasma and whole saliva were collected from 19 healthy volunteers within a 2-h time window. IgG and IgA were affinity-purified from the two biofluids, followed by tryptic digestion and nanoLC-ESI-QTOF-MS(/MS) analysis. Saliva-derived IgG exhibited a slightly lower galactosylation and sialylation as compared to plasma-derived IgG. Glycosylation of IgA1, IgA2, and the JC showed substantial differences between the biofluids, with salivary proteins exhibiting a higher bisection, and lower galactosylation and sialylation as compared to plasma-derived IgA and JC. Additionally, all seven N-glycosylation sites, characterized on the SC of secretory IgA in saliva, carried highly fucosylated and fully galactosylated diantennary N-glycans. This study lays the basis for future research into the functional role of salivary Ig glycosylation as well as its biomarker potential.
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Affiliation(s)
- Rosina Plomp
- Center for Proteomics and Metabolomics, Leiden University Medical Center, Leiden, Netherlands
| | - Noortje de Haan
- Center for Proteomics and Metabolomics, Leiden University Medical Center, Leiden, Netherlands
| | - Albert Bondt
- Center for Proteomics and Metabolomics, Leiden University Medical Center, Leiden, Netherlands
| | - Jayshri Murli
- Center for Proteomics and Metabolomics, Leiden University Medical Center, Leiden, Netherlands
| | - Viktoria Dotz
- Center for Proteomics and Metabolomics, Leiden University Medical Center, Leiden, Netherlands
| | - Manfred Wuhrer
- Center for Proteomics and Metabolomics, Leiden University Medical Center, Leiden, Netherlands
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5
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Clerc F, Novokmet M, Dotz V, Reiding KR, de Haan N, Kammeijer GSM, Dalebout H, Bladergroen MR, Vukovic F, Rapp E, Targan SR, Barron G, Manetti N, Latiano A, McGovern DPB, Annese V, Lauc G, Wuhrer M. Plasma N-Glycan Signatures Are Associated With Features of Inflammatory Bowel Diseases. Gastroenterology 2018; 155:829-843. [PMID: 29792883 DOI: 10.1053/j.gastro.2018.05.030] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Revised: 04/07/2018] [Accepted: 05/15/2018] [Indexed: 12/15/2022]
Abstract
BACKGROUND & AIMS Biomarkers are needed for early detection of Crohn's disease (CD) and ulcerative colitis (UC) or to predict patient outcomes. Glycosylation is a common and complex posttranslational modification of proteins that affects their structure and activity. We compared plasma N-glycosylation profiles between patients with CD or UC and healthy individuals (controls). METHODS We analyzed the total plasma N-glycomes of 2635 patients with inflammatory bowel diseases and 996 controls by mass spectrometry with a linkage-specific sialic acid derivatization technique. Plasma samples were acquired from 2 hospitals in Italy (discovery cohort, 1989 patients with inflammatory bowel disease [IBD] and 570 controls) and 1 medical center in the United States (validation cohort, 646 cases of IBD and 426 controls). Sixty-three glycoforms met our criteria for relative quantification and were extracted from the raw data with the software MassyTools. Common features shared by the glycan compositions were combined in 78 derived traits, including the number of antennae of complex-type glycans and levels of fucosylation, bisection, galactosylation, and sialylation. Associations of plasma N-glycomes with age, sex, CD, UC, and IBD-related parameters such as disease location, surgery and medication, level of C-reactive protein, and sedimentation rate were tested by linear and logistic regression. RESULTS Plasma samples from patients with IBD had a higher abundance of large-size glycans compared with controls, a decreased relative abundance of hybrid and high-mannose structures, lower fucosylation, lower galactosylation, and higher sialylation (α2,3- and α2,6-linked). We could discriminate plasma from patients with CD from that of patients with UC based on higher bisection, lower galactosylation, and higher sialylation (α2,3-linked). Glycosylation patterns were associated with disease location and progression, the need for a more potent medication, and surgery. These results were replicated in a large independent cohort. CONCLUSIONS We performed high-throughput analysis to compare total plasma N-glycomes of individuals with vs without IBD and to identify patterns associated with disease features and the need for treatment. These profiles might be used in diagnosis and for predicting patients' responses to treatment.
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Affiliation(s)
- Florent Clerc
- Center for Proteomics and Metabolomics, Leiden University Medical Center (LUMC), Leiden, The Netherlands
| | | | - Viktoria Dotz
- Center for Proteomics and Metabolomics, Leiden University Medical Center (LUMC), Leiden, The Netherlands
| | - Karli R Reiding
- Center for Proteomics and Metabolomics, Leiden University Medical Center (LUMC), Leiden, The Netherlands
| | - Noortje de Haan
- Center for Proteomics and Metabolomics, Leiden University Medical Center (LUMC), Leiden, The Netherlands
| | - Guinevere S M Kammeijer
- Center for Proteomics and Metabolomics, Leiden University Medical Center (LUMC), Leiden, The Netherlands
| | - Hans Dalebout
- Center for Proteomics and Metabolomics, Leiden University Medical Center (LUMC), Leiden, The Netherlands
| | - Marco R Bladergroen
- Center for Proteomics and Metabolomics, Leiden University Medical Center (LUMC), Leiden, The Netherlands
| | - Frano Vukovic
- Genos Glycoscience Research Laboratory, Zagreb, Croatia
| | - Erdmann Rapp
- Max Planck Institute for Dynamics of Complex Technical Systems, Magdeburg, Germany; glyXera GmbH, Magdeburg, Germany
| | | | - Stephan R Targan
- F. Widjaja Foundation Inflammatory Bowel and Immunobiology Research Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Gildardo Barron
- F. Widjaja Foundation Inflammatory Bowel and Immunobiology Research Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Natalia Manetti
- Unit of Gastroenterology SOD2 (Strutture Organizzative Dipartimentali), Azienda Ospedaliero Universitaria (AOU) Careggi, Florence, Italy
| | - Anna Latiano
- Unit of Gastroenterology, IRCCS-CSS (Istituto di Ricovero e Cura a Carattere Scientifico-Casa Sollievo della Sofferenza) Hospital, San Giovanni Rotondo, Italy
| | - Dermot P B McGovern
- F. Widjaja Foundation Inflammatory Bowel and Immunobiology Research Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Vito Annese
- Unit of Gastroenterology SOD2 (Strutture Organizzative Dipartimentali), Azienda Ospedaliero Universitaria (AOU) Careggi, Florence, Italy; Unit of Gastroenterology, IRCCS-CSS (Istituto di Ricovero e Cura a Carattere Scientifico-Casa Sollievo della Sofferenza) Hospital, San Giovanni Rotondo, Italy
| | - Gordan Lauc
- Genos Glycoscience Research Laboratory, Zagreb, Croatia
| | - Manfred Wuhrer
- Center for Proteomics and Metabolomics, Leiden University Medical Center (LUMC), Leiden, The Netherlands.
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6
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Longitudinal monitoring of immunoglobulin A glycosylation during pregnancy by simultaneous MALDI-FTICR-MS analysis of N- and O-glycopeptides. Sci Rep 2016; 6:27955. [PMID: 27302155 PMCID: PMC4908400 DOI: 10.1038/srep27955] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Accepted: 05/24/2016] [Indexed: 12/13/2022] Open
Abstract
Immunoglobulin A (IgA) is a glycoprotein of which altered glycosylation has been associated with several pathologies. Conventional methods for IgA N- and O-glycosylation analysis are tedious, thus limiting such analyses to small sample sizes. Here we present a high-throughput strategy for the simultaneous analysis of serum-derived IgA1 N- and O-glycopeptides using matrix-assisted laser/desorption ionisation Fourier transform ion cyclotron resonance (MALDI-FTICR) mass spectrometry (MS). Six non-fucosylated diantennary complex type glycoforms were detected on the Asn144-containing glycopeptide. Thirteen distinct glycoforms were identified for the Asn340-containing tailpiece glycopeptide, mainly of the diantennary complex type, and low amounts of triantennary glycoforms. Simultaneously with these N-glycopeptides, 53 compositional glycoforms of the hinge region O-glycopeptide were profiled in a single high resolution MALDI-FTICR spectrum. Since many pregnancy associated changes have been recognized for immunoglobulin G, we sought to demonstrate the clinical applicability of this method in a cohort of 29 pregnant women, from whom samples were collected at three time points during pregnancy and three time points after delivery. Pregnancy associated changes of N-glycan bisection were different for IgA1 as compared to IgG-Fc described earlier. We foresee further applications of the developed method for larger patient cohorts to study IgA N- and O-glycosylation changes in pathologies.
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7
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Parsha S, Ravindra Kumar Y, Ravichander M, Prakash L, Sudharani B. LC–MS/MS and NMR characterization of forced degradation products of mirabegron. J LIQ CHROMATOGR R T 2016. [DOI: 10.1080/10826076.2016.1144201] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Swetha Parsha
- Department of Analytical Research and Development, Integrated Product Development, Dr Reddy’s Laboratories, Hyderabad, India
- Department of Chemistry, Jawaharlal Nehru Technological University, Hyderabad, India
| | - Y. Ravindra Kumar
- Department of Analytical Research and Development, Integrated Product Development, Dr Reddy’s Laboratories, Hyderabad, India
| | - M. Ravichander
- Department of Chemistry, Mahatma Gandhi Institute of Technology, Hyderabad, India
| | - L. Prakash
- Department of Analytical Research and Development, Integrated Product Development, Dr Reddy’s Laboratories, Hyderabad, India
| | - B. Sudharani
- Department of Analytical Research and Development, Integrated Product Development, Dr Reddy’s Laboratories, Hyderabad, India
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8
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Clerc F, Reiding KR, Jansen BC, Kammeijer GSM, Bondt A, Wuhrer M. Human plasma protein N-glycosylation. Glycoconj J 2015; 33:309-43. [PMID: 26555091 PMCID: PMC4891372 DOI: 10.1007/s10719-015-9626-2] [Citation(s) in RCA: 293] [Impact Index Per Article: 32.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Revised: 09/30/2015] [Accepted: 10/05/2015] [Indexed: 01/09/2023]
Abstract
Glycosylation is the most abundant and complex protein modification, and can have a profound structural and functional effect on the conjugate. The oligosaccharide fraction is recognized to be involved in multiple biological processes, and to affect proteins physical properties, and has consequentially been labeled a critical quality attribute of biopharmaceuticals. Additionally, due to recent advances in analytical methods and analysis software, glycosylation is targeted in the search for disease biomarkers for early diagnosis and patient stratification. Biofluids such as saliva, serum or plasma are of great use in this regard, as they are easily accessible and can provide relevant glycosylation information. Thus, as the assessment of protein glycosylation is becoming a major element in clinical and biopharmaceutical research, this review aims to convey the current state of knowledge on the N-glycosylation of the major plasma glycoproteins alpha-1-acid glycoprotein, alpha-1-antitrypsin, alpha-1B-glycoprotein, alpha-2-HS-glycoprotein, alpha-2-macroglobulin, antithrombin-III, apolipoprotein B-100, apolipoprotein D, apolipoprotein F, beta-2-glycoprotein 1, ceruloplasmin, fibrinogen, immunoglobulin (Ig) A, IgG, IgM, haptoglobin, hemopexin, histidine-rich glycoprotein, kininogen-1, serotransferrin, vitronectin, and zinc-alpha-2-glycoprotein. In addition, the less abundant immunoglobulins D and E are included because of their major relevance in immunology and biopharmaceutical research. Where available, the glycosylation is described in a site-specific manner. In the discussion, we put the glycosylation of individual proteins into perspective and speculate how the individual proteins may contribute to a total plasma N-glycosylation profile determined at the released glycan level.
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Affiliation(s)
- Florent Clerc
- Center for Proteomics and Metabolomics, Leiden University Medical Center, P.O. Box 9600, 2300 RC, Leiden, The Netherlands
| | - Karli R Reiding
- Center for Proteomics and Metabolomics, Leiden University Medical Center, P.O. Box 9600, 2300 RC, Leiden, The Netherlands
| | - Bas C Jansen
- Center for Proteomics and Metabolomics, Leiden University Medical Center, P.O. Box 9600, 2300 RC, Leiden, The Netherlands
| | - Guinevere S M Kammeijer
- Center for Proteomics and Metabolomics, Leiden University Medical Center, P.O. Box 9600, 2300 RC, Leiden, The Netherlands
| | - Albert Bondt
- Center for Proteomics and Metabolomics, Leiden University Medical Center, P.O. Box 9600, 2300 RC, Leiden, The Netherlands.,Department of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands
| | - Manfred Wuhrer
- Center for Proteomics and Metabolomics, Leiden University Medical Center, P.O. Box 9600, 2300 RC, Leiden, The Netherlands. .,Division of BioAnalytical Chemistry, VU University Amsterdam, Amsterdam, The Netherlands.
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9
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Nwosu C, Yau HK, Becht S. Assignment of Core versus Antenna Fucosylation Types in Protein N-Glycosylation via Procainamide Labeling and Tandem Mass Spectrometry. Anal Chem 2015; 87:5905-13. [DOI: 10.1021/ac5040743] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Charles Nwosu
- Pharmaceutical Product Development, 8551 Research Way, Middleton, Wisconsin 53562, United States
| | - Hoi Kei Yau
- Pharmaceutical Product Development, 8551 Research Way, Middleton, Wisconsin 53562, United States
| | - Steven Becht
- Pharmaceutical Product Development, 8551 Research Way, Middleton, Wisconsin 53562, United States
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10
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Lareau NM, May JC, McLean JA. Non-derivatized glycan analysis by reverse phase liquid chromatography and ion mobility-mass spectrometry. Analyst 2015; 140:3335-8. [PMID: 25737268 PMCID: PMC4422766 DOI: 10.1039/c5an00152h] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A simple method for the analysis of non-derivatized glycans using a reverse phase column on a liquid chromatography-ion mobility-mass spectrometry (LC-IM-MS) instrument. The methodology supports both glycomic and proteomic work flows without the necessity of switching columns.
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Affiliation(s)
- Nichole M Lareau
- Department of Chemistry, Center for Innovative Technology, Institute of Chemical Biology, and Institute for Integrative Biosystems Research and Education, Vanderbilt University, 7330 Stevenson Center, Nashville, TN 37235, USA.
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11
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Abstract
Three methods are introduced here to fully characterize glycosylation at protein, peptides, and glycan levels by LC-MS (ESI TOF MS). At protein level, glycosylation could be detected by comparing protein masses with and without glycan. At peptide level, glycosylation sites could be detected by removing glycan and site specific glycosylation could be examined with glycopeptides. At glycan level, glycan profiling and identification could be achieved by analyzing released glycans labeled with procainamide. All these methods are MS based and able to provide a whole picture of glycosylation of a glycoprotein. These methods are also simple to implement in industrial or academic laboratory with proper training and instruments.
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12
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Zhang S, Jiang K, Sun C, Lu H, Liu Y. Quantitative analysis of site-specific N-glycans on sera haptoglobin β chain in liver diseases. Acta Biochim Biophys Sin (Shanghai) 2013; 45:1021-9. [PMID: 24103369 DOI: 10.1093/abbs/gmt110] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The site-specific characterization of N-glycans in glycoproteins with the potential of clinical application is important. In our previous report, the overall N-glycans of sera haptoglobin (Hp) β chain were found to be different in liver diseases. Hp β chain contains four potential sites of N-glycosylation. In this study, we investigated the potential change of N-glycans on Hp β chain in a site-specific fashion. Sera Hp β chain in healthy individuals as well as patients with hepatitis B virus (HBV), liver cirrhosis (LC) and hepatocellular carcinoma (HCC) were purified, digested and subjected to liquid chromatography-electrospray ionization-higher energy collision dissociation mass spectrometry, which allowed identification and structure determination of the glycopeptide, as well as the relative quantification of glycans present on each glycopeptide. The quantitative results revealed that the sialylation of NLFLN(207)HSEN(211)ATAK and the fucosylated structure at all glycopeptides increased significantly in LC and HCC patients compared with those in HBV patients and healthy individuals. A set of different N-glycan patterns of Hp β chain in various liver diseases has been determined. Thus, the sialylated and fucosylated glycoforms of Hp β chain might be related to early hepatocarcinogenesis and also might be useful as novel differential markers for LC and HCC patients.
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Affiliation(s)
- Shu Zhang
- Liver Cancer Institute, Zhongshan Hospital, Key Labolatory of Carcinogenesis and Cancer Invasion, Fudan University, Ministry of Education, Shanghai 200032, China
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13
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Coupling ultra high-pressure liquid chromatography with mass spectrometry: Constraints and possible applications. J Chromatogr A 2013; 1292:2-18. [PMID: 23062879 DOI: 10.1016/j.chroma.2012.09.061] [Citation(s) in RCA: 105] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2012] [Revised: 09/19/2012] [Accepted: 09/20/2012] [Indexed: 01/10/2023]
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14
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Montesdeoca-Esponda S, Sosa-Ferrera Z, Santana-Rodríguez JJ. Microwave-assisted extraction combined with on-line solid phase extraction followed by ultra-high-performance liquid chromatography with tandem mass spectrometric determination of benzotriazole UV stabilizers in marine sediments and sewage sludges. J Sep Sci 2013; 36:781-8. [DOI: 10.1002/jssc.201200664] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2012] [Revised: 10/31/2012] [Accepted: 11/01/2012] [Indexed: 11/08/2022]
Affiliation(s)
| | - Zoraida Sosa-Ferrera
- Departamento de Química; Universidad de Las Palmas de G.C.; Las Palmas de G.C. Spain
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15
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Montesdeoca-Esponda S, Sosa-Ferrera Z, Santana-Rodríguez JJ. On-line solid-phase extraction coupled to ultra-performance liquid chromatography with tandem mass spectrometry detection for the determination of benzotriazole UV stabilizers in coastal marine and wastewater samples. Anal Bioanal Chem 2012; 403:867-76. [PMID: 22411539 DOI: 10.1007/s00216-012-5906-x] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2011] [Revised: 02/17/2012] [Accepted: 02/24/2012] [Indexed: 10/28/2022]
Abstract
Benzotriazoles are a group of UV absorbing compounds considered emerging contaminants that are used in different personal care products, and therefore, it is of high interest to develop sensitive and fast methods for investigating their presence in the environment. In this work, we present the development and application of a novel method based on on-line solid-phase extraction coupled to ultra-performance liquid chromatography with tandem mass spectrometry detection (SPE-UPLC-MS/MS) for the determination of seven benzotriazole UV stabilizers (BUVSs) in coastal marine and wastewater samples. This process is compared with a conventional off-line SPE procedure followed by UPLC-MS/MS. The parameters affecting the performance of the sample preparation and determination processes were evaluated. The results indicate that the on-line procedure provides for better sensitivity and reproducibility and is faster and easier than the off-line procedure. The detection limits and quantification limits achieved were in the range of 0.6-4.1 ng∙L(-1) and 2.1-14 ng∙L(-1) and relative standard deviation between 6.2 and 10%. The developed method was applied to coastal marine and wastewater samples from Gran Canaria Island (Spain). All of the BUVSs studied were detected in the samples from wastewater treatment plants and two were found in the seawater samples (UV P in the range of 2.8-4.4 ng∙L(-1) and UV 360 between 3.6 and 5.2 ng∙L(-1)).
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Affiliation(s)
- Sarah Montesdeoca-Esponda
- Departamento de Química, Universidad de Las Palmas de Gran Canaria, 35017, Las Palmas de Gran Canaria, Spain
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