1
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Zhou Y, Priya S, Ong JY. Characterizing Glycosylation of Adeno-Associated Virus Serotype 9 Capsid Proteins Generated from HEK293 Cells through Glycopeptide Mapping and Released Glycan Analysis. Microorganisms 2024; 12:946. [PMID: 38792776 PMCID: PMC11123743 DOI: 10.3390/microorganisms12050946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 04/27/2024] [Accepted: 04/30/2024] [Indexed: 05/26/2024] Open
Abstract
Recombinant adeno-associated viral (AAV) vectors have emerged as prominent gene delivery vehicles for gene therapy. AAV capsid proteins determine tissue specificity and immunogenicity and play important roles in receptor binding, the escape of the virus from the endosome, and the transport of the viral DNA to the nuclei of target cells. Therefore, the comprehensive characterization of AAV capsid proteins is necessary for a better understanding of the vector assembly, stability, and transduction efficiency of AAV gene therapies. Glycosylation is one of the most common post-translational modifications (PTMs) and may affect the tissue tropism of AAV gene therapy. However, there are few studies on the characterization of the N- and O-glycosylation of AAV capsid proteins. In this study, we identified the N- and O-glycosylation sites and forms of AAV9 capsid proteins generated from HEK293 cells using liquid chromatography-tandem mass spectrometry (LC-MS)-based glycopeptide mapping and identified free N-glycans released from AAV9 capsid proteins by PNGase F using hydrophilic interaction (HILIC) LC-MS and HILIC LC-fluorescence detection (FLD) methods. This study demonstrates that AAV9 capsids are sprinkled with sugars, including N- and O-glycans, albeit at low levels. It may provide valuable information for a better understanding of AAV capsids in supporting AAV-based gene therapy development.
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Affiliation(s)
- Yu Zhou
- Analytical Development & Operations, Novartis Pharmaceuticals, 10210 Campus Point Drive, San Diego, CA 92121, USA
| | - Sonal Priya
- Analytical Development & Operations, Novartis Pharmaceuticals, 10210 Campus Point Drive, San Diego, CA 92121, USA
| | - Joseph Y Ong
- Analytical Development & Operations, Novartis Pharmaceuticals, 10210 Campus Point Drive, San Diego, CA 92121, USA
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2
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Helali Y, Delporte C. Updates of the current strategies of labeling for N-glycan analysis. J Chromatogr B Analyt Technol Biomed Life Sci 2024; 1237:124068. [PMID: 38484674 DOI: 10.1016/j.jchromb.2024.124068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Revised: 02/20/2024] [Accepted: 02/24/2024] [Indexed: 04/13/2024]
Abstract
This mini review summarizes the current methods used for screening N-glycosylation of glycoproteins, with a specific focus on therapeutic proteins and on techniques involving the release of N-glycans. With the continuous development of biopharmaceuticals, particularly monoclonal antibodies (mAbs), which are N-glycosylated proteins, monitoring has gained importance in recent decades. Glycosylation of therapeutic glycoproteins is considered a critical quality attribute because it can impact the efficacy and safety of these therapeutic drugs. The protocols and instrumentation have evolved with the advancement of technologies. Nowadays, methods are becoming increasingly robust, rapid, and sensitive. For the release of N-glycans, the most commonly used method is enzymatic release using PNGase F. The latter is discussed in light of the advent of rapid release that is now possible. The strategy for separating N-glycans using either liquid chromatography (LC) with hydrophilic interaction liquid chromatography (HILIC) chemistry or capillary electrophoresis will be discussed. The selection of the labeling agent is a crucial step in sample preparation for the analysis of released N-glycans. This review also discusses labeling agents that are compatible with and dependent on the separation and detection techniques employed. The emergence of multiplex labeling agents is also summarized. The latter enables the analysis of multiple samples in a single run, but it requires MS analysis.
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Affiliation(s)
- Yosra Helali
- RD3-Pharmacognosis, Bioanalysis and Drug Discovery Unit & Analytical Platform of the Faculty of Pharmacy (APFP), Faculty of Pharmacy, Université libre de Bruxelles (ULB), Brussels, Belgium
| | - Cédric Delporte
- RD3-Pharmacognosis, Bioanalysis and Drug Discovery Unit & Analytical Platform of the Faculty of Pharmacy (APFP), Faculty of Pharmacy, Université libre de Bruxelles (ULB), Brussels, Belgium.
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3
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Altmann F, Helm J, Pabst M, Stadlmann J. Introduction of a human- and keyboard-friendly N-glycan nomenclature. Beilstein J Org Chem 2024; 20:607-620. [PMID: 38505241 PMCID: PMC10949011 DOI: 10.3762/bjoc.20.53] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 02/27/2024] [Indexed: 03/21/2024] Open
Abstract
In the beginning was the word. But there were no words for N-glycans, at least, no simple words. Next to chemical formulas, the IUPAC code can be regarded as the best, most reliable and yet immediately comprehensible annotation of oligosaccharide structures of any type from any source. When it comes to N-glycans, the venerable IUPAC code has, however, been widely supplanted by highly simplified terms for N-glycans that count the number of antennae or certain components such as galactoses, sialic acids and fucoses and give only limited room for exact structure description. The highly illustrative - and fortunately now standardized - cartoon depictions gained much ground during the last years. By their very nature, cartoons can neither be written nor spoken. The underlying machine codes (e.g., GlycoCT, WURCS) are definitely not intended for direct use in human communication. So, one might feel the need for a simple, yet intelligible and precise system for alphanumeric descriptions of the hundreds and thousands of N-glycan structures. Here, we present a system that describes N-glycans by defining their terminal elements. To minimize redundancy and length of terms, the common elements of N-glycans are taken as granted. The preset reading order facilitates definition of positional isomers. The combination with elements of the condensed IUPAC code allows to describe even rather complex structural elements. Thus, this "proglycan" coding could be the missing link between drawn structures and software-oriented representations of N-glycan structures. On top, it may greatly facilitate keyboard-based mining for glycan substructures in glycan repositories.
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Affiliation(s)
| | - Johannes Helm
- Department of Chemistry, BOKU University, Vienna, Austria
| | - Martin Pabst
- Department of Biotechnology, Delft University of Technology, Delft, The Netherlands
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4
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Farsang R, Jarvas G, Guttman A. Purification free N-glycan analysis by capillary zone electrophoresis: Hunt for the lost glycans. J Pharm Biomed Anal 2024; 238:115812. [PMID: 37926036 DOI: 10.1016/j.jpba.2023.115812] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Revised: 10/20/2023] [Accepted: 10/20/2023] [Indexed: 11/07/2023]
Abstract
Capillary gel electrophoresis is a widely used method for rapid separation of fluorophore labeled carbohydrates. Even though, many publications conferred about this popular technique, no report yet investigated the possible sample losses during the purification process of the fluorophore labeling reaction mixture. In the present work, normal polarity capillary zone electrophoresis separation mode was applied to take advantage of the opposite migration directions of the electroosmotic flow and the negatively charged sample components using Tris-hexanoic acid running buffer at basic pH. For purification free oligosaccharide analysis, the separation parameters were designed in such a way that the triple charged labeling reagent of aminopyrenetrisulfonate (APTS) could not enter the separation capillary in contrary to the labeled sample components of interest, therefore, the APTS did not have to be removed before analysis. The method was used to show electrophoretic profile differences possibly caused by the cleanup process that was immediately apparent by comparing the electropherograms of the purified and non-purified APTS labeled maltooligosaccharides. Furthermore, qualitative and quantitative N-glycosylation profile alterations were revealed during CZE separation of the fluorophore labeling reaction mixtures before and after purification along with the analysis of the consecutively used washing solutions for the well characterized standard glycoproteins of IgG, ribonuclease B and fetuin.
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Affiliation(s)
- Robert Farsang
- Translational Glycomics Group, Research Institute of Biomolecular and Chemical Engineering, University of Pannonia, Veszprem, Hungary
| | - Gabor Jarvas
- Translational Glycomics Group, Research Institute of Biomolecular and Chemical Engineering, University of Pannonia, Veszprem, Hungary
| | - Andras Guttman
- Translational Glycomics Group, Research Institute of Biomolecular and Chemical Engineering, University of Pannonia, Veszprem, Hungary; Horváth Csaba Memorial Laboratory of Bioseparation Sciences, Research Center for Molecular Medicine, Faculty of Medicine, University of Debrecen, Hungary.
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5
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Marie AL, Ray S, Ivanov AR. Highly-sensitive label-free deep profiling of N-glycans released from biomedically-relevant samples. Nat Commun 2023; 14:1618. [PMID: 36959283 PMCID: PMC10036494 DOI: 10.1038/s41467-023-37365-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 03/13/2023] [Indexed: 03/25/2023] Open
Abstract
Alterations of protein glycosylation can serve as sensitive and specific disease biomarkers. Labeling procedures for improved separation and detectability of oligosaccharides have several drawbacks, including incomplete derivatization, side-products, noticeable desialylation/defucosylation, sample loss, and interference with downstream analyses. Here, we develop a label-free workflow based on high sensitivity capillary zone electrophoresis-mass spectrometry (CZE-MS) for profiling of native underivatized released N-glycans. Our workflow provides a >45-fold increase in signal intensity compared to the conventional CZE-MS approaches used for N-glycan analysis. Qualitative and quantitative N-glycan profiling of purified human serum IgG, bovine serum fetuin, bovine pancreas ribonuclease B, blood-derived extracellular vesicle isolates, and total plasma results in the detection of >250, >400, >150, >310, and >520 N-glycans, respectively, using injected amounts equivalent to <25 ng of model protein and nL-levels of plasma-derived samples. Compared to reported results for biological samples of similar amounts and complexity, the number of identified N-glycans is increased up to ~15-fold, enabling highly sensitive analysis of sample amounts as low as sub-0.2 nL of plasma volume equivalents. Furthermore, highly sialylated N-glycans are identified and structurally characterized, and untreated sialic acid-linkage isomers are resolved in a single CZE-MS analysis.
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Affiliation(s)
- Anne-Lise Marie
- Barnett Institute of Chemical and Biological Analysis, Department of Chemistry and Chemical Biology, Northeastern University, 360 Huntington Ave., Boston, MA, 02115, USA
| | - Somak Ray
- Barnett Institute of Chemical and Biological Analysis, Department of Chemistry and Chemical Biology, Northeastern University, 360 Huntington Ave., Boston, MA, 02115, USA
| | - Alexander R Ivanov
- Barnett Institute of Chemical and Biological Analysis, Department of Chemistry and Chemical Biology, Northeastern University, 360 Huntington Ave., Boston, MA, 02115, USA.
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6
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Burock R, Cajic S, Hennig R, Buettner FFR, Reichl U, Rapp E. Reliable N-Glycan Analysis-Removal of Frequently Occurring Oligosaccharide Impurities by Enzymatic Degradation. Molecules 2023; 28:molecules28041843. [PMID: 36838829 PMCID: PMC9967028 DOI: 10.3390/molecules28041843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 02/08/2023] [Accepted: 02/10/2023] [Indexed: 02/18/2023] Open
Abstract
Glycosylation, especially N-glycosylation, is one of the most common protein modifications, with immense importance at the molecular, cellular, and organismal level. Thus, accurate and reliable N-glycan analysis is essential in many areas of pharmaceutical and food industry, medicine, and science. However, due to the complexity of the cellular glycosylation process, in-depth glycoanalysis is still a highly challenging endeavor. Contamination of samples with oligosaccharide impurities (OSIs), typically linear glucose homo-oligomers, can cause further complications. Due to their physicochemical similarity to N-glycans, OSIs produce potentially overlapping signals, which can remain unnoticed. If recognized, suspected OSI signals are usually excluded in data evaluation. However, in both cases, interpretation of results can be impaired. Alternatively, sample preparation can be repeated to include an OSI removal step from samples. However, this significantly increases sample amount, time, and effort necessary. To overcome these issues, we investigated the option to enzymatically degrade and thereby remove interfering OSIs as a final sample preparation step. Therefore, we screened ten commercially available enzymes concerning their potential to efficiently degrade maltodextrins and dextrans as most frequently found OSIs. Of these enzymes, only dextranase from Chaetomium erraticum and glucoamylase P from Hormoconis resinae enabled a degradation of OSIs within only 30 min that is free of side reactions with N-glycans. Finally, we applied the straightforward enzymatic degradation of OSIs to N-glycan samples derived from different standard glycoproteins and various stem cell lysates.
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Affiliation(s)
- Robert Burock
- MPI for Dynamics of Complex Technical Systems, Sandtorstraße 1, 39106 Magdeburg, Germany
- glyXera GmbH, Brenneckestraße 20, 39120 Magdeburg, Germany
| | - Samanta Cajic
- MPI for Dynamics of Complex Technical Systems, Sandtorstraße 1, 39106 Magdeburg, Germany
- glyXera GmbH, Brenneckestraße 20, 39120 Magdeburg, Germany
| | - René Hennig
- MPI for Dynamics of Complex Technical Systems, Sandtorstraße 1, 39106 Magdeburg, Germany
- glyXera GmbH, Brenneckestraße 20, 39120 Magdeburg, Germany
- Correspondence:
| | - Falk F. R. Buettner
- Institute of Clinical Biochemistry, Hannover Medical School, Carl-Neuberg-Straße 1, 30625 Hannover, Germany
| | - Udo Reichl
- MPI for Dynamics of Complex Technical Systems, Sandtorstraße 1, 39106 Magdeburg, Germany
- Bioprocess Engineering, Otto-von-Guericke University, Universitätsplatz 2, 39106 Magdeburg, Germany
| | - Erdmann Rapp
- MPI for Dynamics of Complex Technical Systems, Sandtorstraße 1, 39106 Magdeburg, Germany
- glyXera GmbH, Brenneckestraße 20, 39120 Magdeburg, Germany
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7
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Lyman DF, Bell A, Black A, Dingerdissen H, Cauley E, Gogate N, Liu D, Joseph A, Kahsay R, Crichton DJ, Mehta A, Mazumder R. Modeling and integration of N-glycan biomarkers in a comprehensive biomarker data model. Glycobiology 2022; 32:855-870. [PMID: 35925813 PMCID: PMC9487899 DOI: 10.1093/glycob/cwac046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 06/30/2022] [Accepted: 07/04/2022] [Indexed: 11/13/2022] Open
Abstract
Molecular biomarkers measure discrete components of biological processes that can contribute to disorders when impaired. Great interest exists in discovering early cancer biomarkers to improve outcomes. Biomarkers represented in a standardized data model, integrated with multi-omics data, may improve understanding and use of novel biomarkers such as glycans and glycoconjugates. Among altered components in tumorigenesis, N-glycans exhibit substantial biomarker potential, when analyzed with their protein carriers. However, such data are distributed across publications and databases of diverse formats, which hampers their use in research and clinical application. Mass spectrometry measures of fifty N-glycans, on seven serum proteins in liver disease, were integrated (as a panel) into a cancer biomarker data model, providing a unique identifier, standard nomenclature, links to glycan resources, and accession and ontology annotations to standard protein, gene, disease, and biomarker information. Data provenance was documented with a standardized FDA-supported BioCompute Object. Using the biomarker data model allows capture of granular information, such as glycans with different levels of abundance in cirrhosis, hepatocellular carcinoma, and transplant groups. Such representation in a standardized data model harmonizes glycomics data in a unified framework, making glycan-protein biomarker data exploration more available to investigators and to other data resources. The biomarker data model we describe can be used by researchers to describe their novel glycan and glycoconjugate biomarkers, can integrate N-glycan biomarker data with multi-source biomedical data, and can foster discovery and insight within a unified data framework for glycan biomarker representation thereby making the data FAIR (Findable, Accessible, Interoperable, Reusable) (https://www.go-fair.org/fair-principles/).
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Affiliation(s)
- Daniel F Lyman
- The Department of Biochemistry & Molecular Medicine, The George Washington University Medical Center, Washington, DC 20037, United States of America
| | - Amanda Bell
- The Department of Biochemistry & Molecular Medicine, The George Washington University Medical Center, Washington, DC 20037, United States of America
| | - Alyson Black
- The Department of Cell & Molecular Pharmacology, The Medical University of South Carolina, Charleston, SC, 29403, United States of America
| | - Hayley Dingerdissen
- The Department of Biochemistry & Molecular Medicine, The George Washington University Medical Center, Washington, DC 20037, United States of America
| | - Edmund Cauley
- The Department of Biochemistry & Molecular Medicine, The George Washington University Medical Center, Washington, DC 20037, United States of America.,The McCormick Genomic and Proteomic Center, The George Washington University, Washington, DC 20037, United States of America
| | - Nikhita Gogate
- The Department of Biochemistry & Molecular Medicine, The George Washington University Medical Center, Washington, DC 20037, United States of America
| | - David Liu
- NASA Jet Propulsion Laboratory, Pasadena, CA 91109, United States of America
| | - Ashia Joseph
- The Department of Biochemistry & Molecular Medicine, The George Washington University Medical Center, Washington, DC 20037, United States of America
| | - Robel Kahsay
- The Department of Biochemistry & Molecular Medicine, The George Washington University Medical Center, Washington, DC 20037, United States of America
| | - Daniel J Crichton
- NASA Jet Propulsion Laboratory, Pasadena, CA 91109, United States of America
| | - Anand Mehta
- The Department of Cell & Molecular Pharmacology, The Medical University of South Carolina, Charleston, SC, 29403, United States of America
| | - Raja Mazumder
- The Department of Biochemistry & Molecular Medicine, The George Washington University Medical Center, Washington, DC 20037, United States of America.,The McCormick Genomic and Proteomic Center, The George Washington University, Washington, DC 20037, United States of America
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8
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Li P, Wang L, Guo R, Feng H, Ji Y, Lim SY, Ng BH, Laserna AKC, Khan S, Chen SM, Li SFY. Cross-identification of N-Glycans by CE-LIF using two capillary coatings and three labeling dyes. Talanta 2021; 239:123061. [PMID: 34809984 DOI: 10.1016/j.talanta.2021.123061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 11/01/2021] [Accepted: 11/10/2021] [Indexed: 01/21/2023]
Abstract
Recombinant protein biopharmaceuticals comprise a significant portion of the current drug development landscape. The glycosylation profile of these proteins is a key quality parameter as it can affect their safety, efficacy, and stability. However, glycan analysis is challenging because of the complexity of their structures. To overcome this challenge in achieving accurate glycan identification, cross-identification of N-Glycans by CE-LIF method using two capillary coatings and three labeling dyes was developed in this work. This work explored whether complementary separation capabilities can be achieved using homemade polyvinyl alcohol (PVA) coating and commercial Guarant™ (Guarant) coating in the analysis of N-glycans. Similar separation profiles were observed using the two capillary coatings, and hence the N-glycan GU databases generated by these coatings were comparable and complementary. The performance of cross-validation by labeling with three fluorescent dyes indicated that low covariance of APTS and Turquoise™ labeling can be obtained, and hence these two labeling mechanisms provided better accuracy for the identification of glycans. Superior reproducibility with RSDs less than 1% for all target glycan standards was achieved by the internal standards (IS) method using maltodextrin ladders as additives in the separation buffer. The developed CE-LIF analysis method was applied to the identification of N-glycans in IgG samples.
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Affiliation(s)
- Pingjing Li
- Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, Sanya, Hainan, 572000, China; NUS Environmental Research Institute, National University of Singapore, T-Lab Building, 5A Engineering Drive 1, 117411, Singapore
| | - Lulu Wang
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore S117543
| | - Rui Guo
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore S117543
| | - Huatao Feng
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore S117543
| | - Ya Ji
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore S117543
| | - Si Ying Lim
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore S117543
| | - Bao Hui Ng
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore S117543
| | | | - Shaheer Khan
- Thermo Fisher Scientific, 180, Oyster Point Blvd, South San Francisco, CA, 94080, USA
| | - Shiaw-Min Chen
- Thermo Fisher Scientific, 180, Oyster Point Blvd, South San Francisco, CA, 94080, USA
| | - Sam Fong Yau Li
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore S117543; NUS Environmental Research Institute, National University of Singapore, T-Lab Building, 5A Engineering Drive 1, 117411, Singapore.
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9
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Marie AL, Ray S, Lu S, Jones J, Ghiran I, Ivanov AR. High-Sensitivity Glycan Profiling of Blood-Derived Immunoglobulin G, Plasma, and Extracellular Vesicle Isolates with Capillary Zone Electrophoresis-Mass Spectrometry. Anal Chem 2021; 93:1991-2002. [PMID: 33433994 DOI: 10.1021/acs.analchem.0c03102] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
We developed a highly sensitive method for profiling of N-glycans released from proteins based on capillary zone electrophoresis coupled to electrospray ionization mass spectrometry (CZE-ESI-MS) and applied the technique to glycan analysis of plasma and blood-derived isolates. The combination of dopant-enriched nitrogen (DEN)-gas introduced into the nanoelectrospray microenvironment with optimized ionization, desolvation, and CZE-MS conditions improved the detection sensitivity up to ∼100-fold, as directly compared to the conventional mode of instrument operation through peak intensity measurements. Analyses without supplemental pressure increased the resolution ∼7-fold in the separation of closely related and isobaric glycans. The developed method was evaluated for qualitative and quantitative glycan profiling of three types of blood isolates: plasma, total serum immunoglobulin G (IgG), and total plasma extracellular vesicles (EVs). The comparative glycan analysis of IgG and EV isolates and total plasma was conducted for the first time and resulted in detection of >200, >400, and >500 N-glycans for injected sample amounts equivalent to <500 nL of blood. Structural CZE-MS2 analysis resulted in the identification of highly diverse glycans, assignment of α-2,6-linked sialic acids, and differentiation of positional isomers. Unmatched depth of N-glycan profiling was achieved compared to previously reported methods for the analysis of minute amounts of similar complexity blood isolates.
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Affiliation(s)
- Anne-Lise Marie
- Barnett Institute of Chemical and Biological Analysis, Department of Chemistry and Chemical Biology, Northeastern University, 360 Huntington Avenue, Boston, Massachusetts 02115, United States
| | - Somak Ray
- Barnett Institute of Chemical and Biological Analysis, Department of Chemistry and Chemical Biology, Northeastern University, 360 Huntington Avenue, Boston, Massachusetts 02115, United States
| | - Shulin Lu
- Division of Allergy and Inflammation, Beth Israel Deaconess Medical Center, Harvard Medical School, 3 Blackfan Circle, Boston, Massachusetts 02115, United States
| | - Jennifer Jones
- Translational Nanobiology Section, Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland 20892, United States
| | - Ionita Ghiran
- Division of Allergy and Inflammation, Beth Israel Deaconess Medical Center, Harvard Medical School, 3 Blackfan Circle, Boston, Massachusetts 02115, United States
| | - Alexander R Ivanov
- Barnett Institute of Chemical and Biological Analysis, Department of Chemistry and Chemical Biology, Northeastern University, 360 Huntington Avenue, Boston, Massachusetts 02115, United States
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10
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A streamlined workflow for twoplexing of N-linked glycan analysis using light ( 12C 6) and heavy ( 13C 6) isotopologues of 3-aminobenzenesulfonic acid. Anal Chim Acta 2020; 1099:155-164. [PMID: 31986272 DOI: 10.1016/j.aca.2019.11.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 11/21/2019] [Accepted: 11/22/2019] [Indexed: 11/20/2022]
Abstract
Comparative glycosylation analysis of biopharmaceuticals requires the development of methods that deliver the necessary throughput, support structural elucidation and relative quantitation of glycans released from therapeutics. The current study presents the development and applicability assessment of a twoplex approach using light and heavy isotopolouges of 3-aminobenzenesulfonic acid (3-ASA) under wet labeling conditions followed by UHPLC-MS analysis in data dependent acquisition mode. Excellent labelling efficiency, >90%, was achieved for both the light and heavy variants of the reagent. Glycan distributions of two human IgG lots labeled by light and heavy isotopolouges were identical, demonstrating no labeling bias introduced by either of the isotopologues. Peak area distributions of glycan profiles of two human IgG lots were compared to 2-aminobenzamide (2-AB) and RapiFluor-MS protocols. The comparison led to identical results in peak area distribution across the three dyes, but differences in chromatographic selectivity attributed to the different tags. MS1 based relative quantitation was further validated by releasing glycans from the same lot of human IgG, with glycan pools obtained labeled with light and heavy isotopologues separately, followed by mixing and clean-up of the same amount of light and heavy labeled glycan pools. MS analyses of each glycan resulted in a ratio of light and heavy XIC in the range of 0.97 ≤ x ≤ 1.05, demonstrating the method is amenable for the relative quantitation of glycans. Excellent correlation between the relative quantitation data of N-glycans from two human IgG N-glycan pools using the twoplex approach and ratios from peak area distribution calculated from the fluorescent chromatogram was observed (r = 0.986), further corroborating the reliability of the method and its potential applicability in the biopharmaceutical industry. Highly informative HCD-MS2 spectra dominated mostly by Y- and Z-type single and double glycosidic fragment ions facilitate structural interpretation of the oligosaccharides.
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11
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Wang M, Zhu J, Lubman DM, Gao C. Aberrant glycosylation and cancer biomarker discovery: a promising and thorny journey. Clin Chem Lab Med 2019; 57:407-416. [PMID: 30138110 DOI: 10.1515/cclm-2018-0379] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2018] [Accepted: 07/15/2018] [Indexed: 12/12/2022]
Abstract
Glycosylation is among the most important post-translational modifications for proteins and is of intrinsic complex character compared with DNAs and naked proteins. Indeed, over 50%-70% of proteins in circulation are glycosylated, and the "sweet attachments" have versatile structural and functional implications. Both the configuration and composition of the attached glycans affect the biological activities of consensus proteins significantly. Glycosylation is generated by complex biosynthetic pathways comprising hundreds of glycosyltransferases, glycosidases, transcriptional factors, transporters and the protein backbone. In addition, lack of direct genetic templates and glyco-specific antibodies such as those commonly used in DNA amplification and protein capture makes research on glycans and glycoproteins even more difficult, thus resulting in sparse knowledge on the pathophysiological implications of glycosylation. Fortunately, cutting-edge technologies have afforded new opportunities and approaches for investigating cancer-related glycosylation. Thus, glycans as well as aberrantly glycosylated protein-based cancer biomarkers have been increasingly recognized. This mini-review highlights the most recent developments in glyco-biomarker studies in an effort to discover clinically relevant cancer biomarkers using advanced analytical methodologies such as mass spectrometry, high-performance liquid chromatographic/ultra-performance liquid chromatography, capillary electrophoresis, and lectin-based technologies. Recent clinical-centered glycobiological studies focused on determining the regulatory mechanisms and the relation with diagnostics, prognostics and even therapeutics are also summarized. These studies indicate that glycomics is a treasure waiting to be mined where the growth of cancer-related glycomics and glycoproteomics is the next great challenge after genomics and proteomics.
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Affiliation(s)
- Mengmeng Wang
- Department of Laboratory Medicine, Shanghai Eastern Hepatobiliary Surgery Hospital, Shanghai, P.R. China
| | - Jianhui Zhu
- Department of Surgery, University of Michigan Medical School, Ann Arbor, MI, USA
| | - David M Lubman
- Department of Surgery, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Chunfang Gao
- Department of Laboratory Medicine, Shanghai Eastern Hepatobiliary Surgery Hospital, Shanghai 200438, P.R. China, Phone: +86-21-81875131, Fax: +86-21-65562400
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12
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Yau LF, Liu J, Jiang M, Bai G, Wang JR, Jiang ZH. An integrated approach for comprehensive profiling and quantitation of IgG-Fc glycopeptides with application to rheumatoid arthritis. J Chromatogr B Analyt Technol Biomed Life Sci 2019; 1122-1123:64-72. [DOI: 10.1016/j.jchromb.2019.05.027] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 05/22/2019] [Accepted: 05/26/2019] [Indexed: 11/29/2022]
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13
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Hajduk J, Wolf M, Steinhoff R, Karst D, Souquet J, Broly H, Morbidelli M, Zenobi R. Monitoring of antibody glycosylation pattern based on microarray MALDI-TOF mass spectrometry. J Biotechnol 2019; 302:77-84. [PMID: 31260704 DOI: 10.1016/j.jbiotec.2019.06.306] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 06/11/2019] [Accepted: 06/26/2019] [Indexed: 10/26/2022]
Abstract
Biologically manufactured monoclonal antibodies (mAb) can strongly vary in their efficacy and affinity. Therefore, engineering and production of the mAb is highly regulated and requires product monitoring, especially in terms of N-glycosylation patterns. In this work, we present a high-throughput matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) method based on a microarray technology to monitor N-glycopeptides of IgG1 produced in a perfusion cell culture. A bottom-up approach combined with zwitterionic-hydrophilic interaction liquid chromatography for sample purification was used to determine the day-by-day variation of the terminal galactose within two major N-glycoforms. Our results show that microarrays for mass spectrometry (MAMS) are a robust platform for the rapid determination of the carbohydrate distribution. The spectral repeatability is characterized by a low coefficient of variations (1.7% and 7.1% for the FA2 and FA2G1 structures, respectively) and allows to detect the N-glycosylation variability resulting from operating conditions during the bioreactor process. The observed trend of released N-glycans was confirmed using capillary gel electrophoresis with laser-induced fluorescence detection. Therefore, the microarray technology is a promising analytical tool for glycosylation control during the production process of recombinant proteins.
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Affiliation(s)
- Joanna Hajduk
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, CH-8093, Zurich, Switzerland
| | - Moritz Wolf
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, CH-8093, Zurich, Switzerland
| | - Robert Steinhoff
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, CH-8093, Zurich, Switzerland
| | - Daniel Karst
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, CH-8093, Zurich, Switzerland
| | - Jonathan Souquet
- Biotech Process Science Technology & Innovation, Merck-Serono S.A., Corsier-sur-Vevey, Switzerland
| | - Hervé Broly
- Biotech Process Science Technology & Innovation, Merck-Serono S.A., Corsier-sur-Vevey, Switzerland
| | - Massimo Morbidelli
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, CH-8093, Zurich, Switzerland
| | - Renato Zenobi
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, CH-8093, Zurich, Switzerland.
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14
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Black AP, Liang H, West CA, Wang M, Herrera HP, Haab BB, Angel PM, Drake RR, Mehta AS. A Novel Mass Spectrometry Platform for Multiplexed N-Glycoprotein Biomarker Discovery from Patient Biofluids by Antibody Panel Based N-Glycan Imaging. Anal Chem 2019; 91:8429-8435. [PMID: 31177770 DOI: 10.1021/acs.analchem.9b01445] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A new platform for N-glycoprotein analysis from serum that combines matrix-assisted laser desorption/ionization mass spectrometry imaging (MALDI MSI) workflows with antibody slide arrays is described. Antibody panel based (APB) N-glycan imaging allows for the specific capture of N-glycoproteins by antibodies on glass slides and N-glycan analysis in a protein-specific and multiplexed manner. Development of this technique has focused on characterizing two abundant and well-studied human serum glycoproteins, alpha-1-antitrypsin and immunoglobulin G. Using purified standard solutions and 1 μL samples of human serum, both glycoproteins can be immunocaptured and followed by enzymatic release of N-glycans. N-Glycans are detected with a MALDI FT-ICR mass spectrometer in a concentration-dependent manner while maintaining specificity of capture. Importantly, the N-glycans detected via slide-based antibody capture were identical to that of direct analysis of the spotted standards. As a proof of concept, this workflow was applied to patient serum samples from individuals with liver cirrhosis to accurately detect a characteristic increase in an IgG N-glycan. This novel approach to protein-specific N-glycan analysis from an antibody panel can be further expanded to include any glycoprotein for which a validated antibody exists. Additionally, this platform can be adapted for analysis of any biofluid or biological sample that can be analyzed by antibody arrays.
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Affiliation(s)
- Alyson P Black
- Department of Cell and Molecular Pharmacology , Medical University of South Carolina , 173 Ashley Avenue, BSB 310 , Charleston , South Carolina 29425 , United States
| | - Hongyan Liang
- Department of Cell and Molecular Pharmacology , Medical University of South Carolina , 173 Ashley Avenue, BSB 310 , Charleston , South Carolina 29425 , United States
| | - Connor A West
- Department of Cell and Molecular Pharmacology , Medical University of South Carolina , 173 Ashley Avenue, BSB 310 , Charleston , South Carolina 29425 , United States
| | - Mengjun Wang
- Department of Cell and Molecular Pharmacology , Medical University of South Carolina , 173 Ashley Avenue, BSB 310 , Charleston , South Carolina 29425 , United States
| | - Harmin P Herrera
- Department of Microbiology and Immunology , Drexel University College of Medicine , 2900 Queen Lane , Philadephia , Pennsylvania 19129 , United States
| | - Brian B Haab
- Van Andel Research Institute , 333 Bostwick Ave. , Grand Rapids , Michigan 49503 , United States
| | - Peggi M Angel
- Department of Cell and Molecular Pharmacology , Medical University of South Carolina , 173 Ashley Avenue, BSB 310 , Charleston , South Carolina 29425 , United States
| | - Richard R Drake
- Department of Cell and Molecular Pharmacology , Medical University of South Carolina , 173 Ashley Avenue, BSB 310 , Charleston , South Carolina 29425 , United States
| | - Anand S Mehta
- Department of Cell and Molecular Pharmacology , Medical University of South Carolina , 173 Ashley Avenue, BSB 310 , Charleston , South Carolina 29425 , United States
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15
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Measurement of Neutral and Sialylated IgG N-Glycome at Asn-297 by CE-LIF to Assess Hypogalactosylation in Rheumatoid Arthritis. Methods Mol Biol 2019; 1972:77-93. [PMID: 30847785 DOI: 10.1007/978-1-4939-9213-3_6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Modulations in immunoglobulin G (IgG) N-glycosylation have been observed in many human diseases including chronic inflammatory diseases such as rheumatoid arthritis and also cancer. In this chapter, we describe how to determine hypogalactosylation for clinical samples, namely the sample preparation of IgG N-glycans at Asn-297 as well as the measurement of neutral and sialylated N-glycans by capillary electrophoresis coupled with laser-induced fluorescence (CE-LIF).This semiautomated protocol describes the isolation polyclonal antibodies from serum, the separation of IgG-Fc glycopeptides from IgG antigen-binding fragment by pepsin digestion. Afterward, enzymatically released IgG-Fc N-glycans are cleaned up using a polyaromatic adsorbent resin followed by carbon purification. Sialic acids are then derivatized prior to glycan labeling. As a result, the agalactosylated N-glycan A2 does not co-migrate with sialylated N-glycans, which refines the measurement of hypogalactosylation by CE-LIF.
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16
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Lu G, Holland LA. Profiling the N-Glycan Composition of IgG with Lectins and Capillary Nanogel Electrophoresis. Anal Chem 2018; 91:1375-1383. [PMID: 30525457 PMCID: PMC6335613 DOI: 10.1021/acs.analchem.8b03725] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
![]()
Glycosylated human
IgG contains fucosylated biantennary N-glycans with
different modifications including N-acetylglucosamine,
which bisects the mannose core. Although
only a limited number of IgG N-glycan structures
are possible, human IgG N-glycans are predominantly
biantennary and fucosylated and contain varying levels of α2–6-linked
sialic acid, galactose, and bisected N-acetylglucosamine.
Monitoring the relative abundance of bisecting N-acetylglucosamine
is relevant to physiological processes. A rapid, inexpensive, and
automated method is used to successfully profile N-linked IgG glycans
and is suitable to distinguish differences in bisection, galactosylation,
and sialylation in N-glycans derived from different
sources of human IgG. The separation is facilitated with self-assembled
nanogels that also contain a single stationary zone of lectin. When
the lectin specificity matches the N-glycan, the
peak disappears from the electropherogram, identifying the N-glycan structure. The nanogel electrophoresis generates
separation efficiencies of 500 000 plates and resolves the
positional isomers of monogalactosylated biantennary N-glycan and the monogalactosylated bisected N-glycan. Aleuria aurantia lectin, Erythrina cristagalli lectin (ECL), Sambucus nigra lectin, and Phaseolus vulgaris Erythroagglutinin (PHA-E) are used to
identify fucose, galactose, α2–6-linked sialic acid,
and bisected N-acetylglucosamine, respectively. Although
PHA-E lectin has a strong binding affinity for bisected N-glycans that also contain a terminal galactose on the α1–6-linked
mannose branch, this lectin has lower affinity for N-glycans containing terminal galactose and for agalactosylated bisected
biantennary N-glycans. The lower affinity to these
motifs is observed in the electropherograms as a change in peak width,
which when used in conjunction with the results from the ECL lectin
authenticates the composition of the agalactosylated bisected biantennary N-glycan. For runs performed at 17 °C, the precision
in migration time and peak area was less than or equal to 0.08 and
4% relative standard deviation, respectively. The method is compatible
with electrokinetic and hydrodynamic injections, with detection limits
of 70 and 300 pM, respectively.
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Affiliation(s)
- Grace Lu
- C. Eugene Bennett Department of Chemistry , West Virginia University , Morgantown , West Virginia 26506 , United States
| | - Lisa A Holland
- C. Eugene Bennett Department of Chemistry , West Virginia University , Morgantown , West Virginia 26506 , United States
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17
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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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18
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Stable Isotope Quantitative N-Glycan Analysis by Liquid Separation Techniques and Mass Spectrometry. Methods Mol Biol 2018; 1606:353-366. [PMID: 28502012 DOI: 10.1007/978-1-4939-6990-6_23] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/13/2023]
Abstract
Liquid phase separation analysis and subsequent quantitation remains a challenging task for protein-derived oligosaccharides due to their inherent structural complexity and diversity. Incomplete resolution or co-detection of multiple glycan species complicates peak area-based quantitation and associated statistical analysis when optical detection methods are used. The approach outlined herein describes the utilization of stable isotope variants of commonly used fluorescent tags that allow for mass-based glycan identification and relative quantitation following separation by liquid chromatography (LC) or capillary electrophoresis (CE). Comparability assessment of glycoprotein-derived oligosaccharides is performed by derivatization with commercially available isotope variants of 2-aminobenzoic acid or aniline and analysis by LC- and CE-mass spectrometry. Quantitative information is attained from the extracted ion chromatogram/electropherogram ratios generated from the light and heavy isotope clusters.
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19
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On the glycosylation aspects of biosimilarity. Drug Discov Today 2018; 23:616-625. [PMID: 29337201 DOI: 10.1016/j.drudis.2018.01.009] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Revised: 12/04/2017] [Accepted: 01/04/2018] [Indexed: 01/30/2023]
Abstract
The recent expiration of several protein therapeutics opened the door for biosimilar development. Biosimilars are biologic medical products that are similar but not identical copies of already-authorized protein therapeutics. Critical quality attributes (CQA), such as post-translational modifications of recombinant biotherapeutics, are important for the clinical efficacy and safety of both the innovative biologics and their biosimilar counterparts. Here, we summarize biosimilarity CQAs, considering the regulatory guidelines and the statistical aspects (e.g., biosimilarity index) and then discuss glycosylation as one of the important attributes of biosimilarity. Finally, we introduced the 'Glycosimilarity Index', which is based on the averaged biosimilarity criterion.
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20
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Snyder CM, Zhou X, Karty JA, Fonslow BR, Novotny MV, Jacobson SC. Capillary electrophoresis-mass spectrometry for direct structural identification of serum N-glycans. J Chromatogr A 2017; 1523:127-139. [PMID: 28989033 DOI: 10.1016/j.chroma.2017.09.009] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Revised: 09/01/2017] [Accepted: 09/03/2017] [Indexed: 10/18/2022]
Abstract
Through direct coupling of capillary electrophoresis (CE) to mass spectrometry (MS) with a sheathless interface, we have identified 77 potential N-glycan structures derived from human serum. We confirmed the presence of N-glycans previously identified by indirect methods, e.g., electrophoretic mobility standards, obtained 31 new N-glycan structures not identified in our prior work, differentiated co-migrating structures, and determined specific linkages on isomers featuring sialic acids. Serum N-glycans were cleaved from proteins, neutralized via methylamidation, and labeled with the fluorescent tag 8-aminopyrene-1,3,6-trisulfonic acid, which renders the glycan fluorescent and provides a -3 charge for electrophoresis and negative-mode MS detection. The neutralization reaction also stabilizes the labile sialic acids. In addition to methylamidation, native charges from sialic acids were neutralized through reaction with 4-(4,6-dimethoxy-1,3,5-triazin-2-yl)-4-methylmorpholinium to amidate α2,6-linked sialic acids in the presence of ammonium chloride and form lactones with α2,3-linked sialic acids. This neutralization effectively labels each type of sialic acid with a unique mass to determine specific linkages on sialylated N-glycans. For both neutralization schemes, we compared the results from microchip electrophoresis and CE.
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Affiliation(s)
- Christa M Snyder
- Department of Chemistry, Indiana University, Bloomington, IN 47405-7102, United States
| | - Xiaomei Zhou
- Department of Chemistry, Indiana University, Bloomington, IN 47405-7102, United States
| | - Jonathan A Karty
- Department of Chemistry, Indiana University, Bloomington, IN 47405-7102, United States
| | | | - Milos V Novotny
- Department of Chemistry, Indiana University, Bloomington, IN 47405-7102, United States
| | - Stephen C Jacobson
- Department of Chemistry, Indiana University, Bloomington, IN 47405-7102, United States.
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21
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Feng HT, Li P, Rui G, Stray J, Khan S, Chen SM, Li SFY. Multiplexing N-glycan analysis by DNA analyzer. Electrophoresis 2017; 38:1788-1799. [PMID: 28426178 DOI: 10.1002/elps.201600404] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 04/03/2017] [Accepted: 04/08/2017] [Indexed: 12/25/2022]
Abstract
Analysis of N-glycan structures has been gaining attentions over the years due to their critical importance to biopharma-based applications and growing roles in biological research. Glycan profiling is also critical to the development of biosimilar drugs. The detailed characterization of N-glycosylation is mandatory because it is a nontemplate driven process and that significantly influences critical properties such as bio-safety and bio-activity. The ability to comprehensively characterize highly complex mixtures of N-glycans has been analytically challenging and stimulating because of the difficulties in both the structure complexity and time-consuming sample pretreatment procedures. CE-LIF is one of the typical techniques for N-glycan analysis due to its high separation efficiency. In this paper, a 16-capillary DNA analyzer was coupled with a magnetic bead glycan purification method to accelerate the sample preparation procedure and therefore increase N-glycan assay throughput. Routinely, the labeling dye used for CE-LIF is 8-aminopyrene-1,3,6-trisulfonic acid, while the typical identification method involves matching migration times with database entries. Two new fluorescent dyes were used to either cross-validate and increase the glycan identification precision or simplify sample preparation steps. Exoglycosidase studies were carried out using neuramididase, galactosidase, and fucosidase to confirm the results of three dye cross-validation. The optimized method combines the parallel separation capacity of multiple-capillary separation with three labeling dyes, magnetic bead assisted preparation, and exoglycosidase treatment to allow rapid and accurate analysis of N-glycans. These new methods provided enough useful structural information to permit N-glycan structure elucidation with only one sample injection.
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Affiliation(s)
- Hua-Tao Feng
- Department of Chemistry, National University of Singapore, Singapore.,NUS Environmental Research Institute, National University of Singapore, Singapore
| | - Pingjing Li
- NUS Environmental Research Institute, National University of Singapore, Singapore
| | - Guo Rui
- NUS Environmental Research Institute, National University of Singapore, Singapore
| | - James Stray
- Thermo Fisher Scientific, South San Francisco, CA, USA
| | - Shaheer Khan
- Thermo Fisher Scientific, South San Francisco, CA, USA
| | | | - Sam F Y Li
- Department of Chemistry, National University of Singapore, Singapore.,NUS Environmental Research Institute, National University of Singapore, Singapore
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22
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Karlsson NG, Jin C, Rojas-Macias MA, Adamczyk B. Next Generation O-Linked Glycomics. TRENDS GLYCOSCI GLYC 2017. [DOI: 10.4052/tigg.1602.1e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Niclas G. Karlsson
- Department of Medical Biochemistry and Cell Biology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg
| | - Chunsheng Jin
- Department of Medical Biochemistry and Cell Biology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg
| | - Miguel A. Rojas-Macias
- Department of Medical Biochemistry and Cell Biology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg
| | - Barbara Adamczyk
- Department of Medical Biochemistry and Cell Biology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg
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23
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Mittermayr S, Lê GN, Clarke C, Millán Martín S, Larkin AM, O’Gorman P, Bones J. Polyclonal Immunoglobulin G N-Glycosylation in the Pathogenesis of Plasma Cell Disorders. J Proteome Res 2016; 16:748-762. [DOI: 10.1021/acs.jproteome.6b00768] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Stefan Mittermayr
- NIBRT−The
National Institute for Bioprocessing Research and Training, Foster Avenue, Mount Merrion, Blackrock Co., Dublin A94 X099, Ireland
| | - Giao N. Lê
- NIBRT−The
National Institute for Bioprocessing Research and Training, Foster Avenue, Mount Merrion, Blackrock Co., Dublin A94 X099, Ireland
- Department
of Haematology, Mater Misericordiae University Hospital, Dublin D07 R2WY, Ireland
- National
Institute for Cellular Biotechnology, Dublin City University, Dublin D09 NR58, Ireland
| | - Colin Clarke
- NIBRT−The
National Institute for Bioprocessing Research and Training, Foster Avenue, Mount Merrion, Blackrock Co., Dublin A94 X099, Ireland
| | - Silvia Millán Martín
- NIBRT−The
National Institute for Bioprocessing Research and Training, Foster Avenue, Mount Merrion, Blackrock Co., Dublin A94 X099, Ireland
| | - Anne-Marie Larkin
- National
Institute for Cellular Biotechnology, Dublin City University, Dublin D09 NR58, Ireland
| | - Peter O’Gorman
- Department
of Haematology, Mater Misericordiae University Hospital, Dublin D07 R2WY, Ireland
| | - Jonathan Bones
- NIBRT−The
National Institute for Bioprocessing Research and Training, Foster Avenue, Mount Merrion, Blackrock Co., Dublin A94 X099, Ireland
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24
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Feng HT, Su M, Rifai FN, Li P, Li SFY. Parallel analysis and orthogonal identification of N-glycans with different capillary electrophoresis mechanisms. Anal Chim Acta 2016; 953:79-86. [PMID: 28010746 DOI: 10.1016/j.aca.2016.11.043] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2016] [Revised: 11/16/2016] [Accepted: 11/19/2016] [Indexed: 10/20/2022]
Abstract
The deep involvement of glycans or carbohydrate moieties in biological processes makes glycan patterns an important direction for the clinical and medicine researches. A multiplexing CE mapping method for glycan analysis was developed in this study. By applying different CE separation mechanisms, the potential of combined parallel applications of capillary zone electrophoresis (CZE), micellar electrokinetic chromatography (MEKC) and capillary gel electrophoresis (CGE) for rapid and accurate identification of glycan was investigated. The combination of CZE and MEKC demonstrated enhancing chromatography separation capacity without the compromises of sample pre-treatment and glycan concentration. The separation mechanisms for multiplexing platform were selected based on the orthogonalities of the separation of glycan standards. MEKC method exhibited promising ability for the analysis of small GU value glycans and thus complementing the unavailability of CZE. The method established required only small amount of samples, simple instrument and single fluorescent labelling for sensitive detection. This integrated method can be used to search important glycan patterns appearing in biopharmaceutical products and other glycoproteins with clinical importance.
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Affiliation(s)
- Hua-Tao Feng
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore; NUS Environmental Research Institute, 5A Engineering Drive 1, T-Lab Building, Singapore 117411, Singapore
| | - Min Su
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Farida Nur Rifai
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Pingjing Li
- NUS Environmental Research Institute, 5A Engineering Drive 1, T-Lab Building, Singapore 117411, Singapore
| | - Sam F Y Li
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore; NUS Environmental Research Institute, 5A Engineering Drive 1, T-Lab Building, Singapore 117411, Singapore.
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25
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Jarvas G, Szigeti M, Chapman J, Guttman A. Triple-Internal Standard Based Glycan Structural Assignment Method for Capillary Electrophoresis Analysis of Carbohydrates. Anal Chem 2016; 88:11364-11367. [DOI: 10.1021/acs.analchem.6b03596] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gabor Jarvas
- Horváth
Csaba Memorial Institute for Bioanalytical Research, University of Debrecen, Debrecen, Hungary
- MTA-PE
Translational Glycomics Group, University of Pannonia, Veszprem, Hungary
| | - Marton Szigeti
- Horváth
Csaba Memorial Institute for Bioanalytical Research, University of Debrecen, Debrecen, Hungary
- MTA-PE
Translational Glycomics Group, University of Pannonia, Veszprem, Hungary
| | | | - Andras Guttman
- Horváth
Csaba Memorial Institute for Bioanalytical Research, University of Debrecen, Debrecen, Hungary
- SCIEX, Brea, California 92821, United States
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26
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Váradi C, Mittermayr S, Millán-Martín S, Bones J. Quantitative twoplex glycan analysis using 12C6 and 13C6 stable isotope 2-aminobenzoic acid labelling and capillary electrophoresis mass spectrometry. Anal Bioanal Chem 2016; 408:8691-8700. [DOI: 10.1007/s00216-016-9935-8] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Revised: 08/24/2016] [Accepted: 09/08/2016] [Indexed: 10/21/2022]
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27
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Mitra I, Snyder CM, Zhou X, Campos MI, Alley WR, Novotny MV, Jacobson SC. Structural Characterization of Serum N-Glycans by Methylamidation, Fluorescent Labeling, and Analysis by Microchip Electrophoresis. Anal Chem 2016; 88:8965-71. [PMID: 27504786 DOI: 10.1021/acs.analchem.6b00882] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
To characterize the structures of N-glycans derived from human serum, we report a strategy that combines microchip electrophoresis, standard addition, enzymatic digestion, and matrix-assisted laser desorption/ionization-mass spectrometry (MALDI-MS). We compared (i) electrophoretic mobilities of known N-glycans from well-characterized (standard) glycoproteins through standard addition, (ii) the electrophoretic mobilities of N-glycans with their molecular weights determined by MALDI-MS, and (iii) electrophoretic profiles of N-glycans enzymatically treated with fucosidase. The key step to identify the sialylated N-glycans was to quantitatively neutralize the negative charge on both α2,3- and α2,6-linked sialic acids by covalent derivatization with methylamine. Both neutralized and nonsialylated N-glycans from these samples were then reacted with 8-aminopyrene-1,3,6-trisulfonic acid (APTS) to provide a fluorescent label and a triple-negative charge, separated by microchip electrophoresis, and detected by laser-induced fluorescence. The methylamidation step leads to a 24% increase in the peak capacity of the separation and direct correlation of electrophoretic and MALDI-MS results. In total, 37 unique N-glycan structures were assigned to 52 different peaks recorded in the electropherograms of the serum samples. This strategy ensures the needed separation efficiency and detectability, easily resolves linkage and positional glycan isomers, and is highly reproducible.
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Affiliation(s)
- Indranil Mitra
- Department of Chemistry, Indiana University , Bloomington, Indiana 47405, United States
| | - Christa M Snyder
- Department of Chemistry, Indiana University , Bloomington, Indiana 47405, United States
| | - Xiaomei Zhou
- Department of Chemistry, Indiana University , Bloomington, Indiana 47405, United States
| | - Margit I Campos
- Department of Chemistry, Indiana University , Bloomington, Indiana 47405, United States
| | - William R Alley
- Department of Chemistry, Indiana University , Bloomington, Indiana 47405, United States
| | - Milos V Novotny
- Department of Chemistry, Indiana University , Bloomington, Indiana 47405, United States
| | - Stephen C Jacobson
- Department of Chemistry, Indiana University , Bloomington, Indiana 47405, United States
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Hajba L, Csanky E, Guttman A. Liquid phase separation methods for N-glycosylation analysis of glycoproteins of biomedical and biopharmaceutical interest. A critical review. Anal Chim Acta 2016; 943:8-16. [PMID: 27769380 DOI: 10.1016/j.aca.2016.08.035] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Revised: 08/18/2016] [Accepted: 08/22/2016] [Indexed: 12/25/2022]
Abstract
Comprehensive carbohydrate analysis of glycoproteins from human biological samples and biotherapeutics are important from diagnostic and therapeutic points of view. This review summarizes the current state-of-the-art liquid phase separation techniques used in N-glycosylation analysis. The different liquid chromatographic techniques and capillary electrophoresis methods are critically discussed in detail. Miniaturization of these methods is also important to increase throughput and decrease analysis time. The sample preparation and labeling methods for asparagine linked oligosaccharides are also addressed.
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Affiliation(s)
- Laszlo Hajba
- MTA-PE Translational Glycomics Research Group, University of Pannonia, Veszprem, Hungary
| | | | - Andras Guttman
- MTA-PE Translational Glycomics Research Group, University of Pannonia, Veszprem, Hungary; Horvath Csaba Laboratory of Bioseparation Sciences, University of Debrecen, Debrecen, Hungary.
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29
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Zhang P, Woen S, Wang T, Liau B, Zhao S, Chen C, Yang Y, Song Z, Wormald MR, Yu C, Rudd PM. Challenges of glycosylation analysis and control: an integrated approach to producing optimal and consistent therapeutic drugs. Drug Discov Today 2016; 21:740-65. [DOI: 10.1016/j.drudis.2016.01.006] [Citation(s) in RCA: 136] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Revised: 12/22/2015] [Accepted: 01/14/2016] [Indexed: 12/18/2022]
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N-Glycan profile analysis of transferrin using a microfluidic compact disc and MALDI-MS. Anal Bioanal Chem 2016; 408:4765-76. [PMID: 27137515 PMCID: PMC4909800 DOI: 10.1007/s00216-016-9570-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 04/06/2016] [Accepted: 04/15/2016] [Indexed: 12/25/2022]
Abstract
It has been known for a long time that diseases can be associated with changes to the glycosylation of specific proteins. This has been shown for cancer, immunological disorders, and neurodegenerative diseases. The possibility of using the glycosylation patterns of proteins as biomarkers for disease would be a great asset for clinical research or diagnosis. There is at present a lack of rapid, automated, and cost-efficient analytical techniques for the determination of the glycosylation of specific serum proteins. We have developed a method for determining the glycosylation pattern of proteins based on the affinity capture of a specific serum protein, the enzymatic release of the N-linked glycans, and the analysis of the glycan pattern using MALDI-MS. All sample preparation is performed in a disposable centrifugal microfluidic disc. The sample preparation is miniaturized, requiring only 1 μL of sample per determination, and automated with the possibility of processing 54 samples in parallel in 3.5 h. We have developed a method for the glycosylation pattern analysis of transferrin. The method has been tested on serum samples from chronic alcohol abusers and a control group. Also, a SIMCA model was created and evaluated to discriminate between the two groups.
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31
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Trbojević-Akmačić I, Vilaj M, Lauc G. High-throughput analysis of immunoglobulin G glycosylation. Expert Rev Proteomics 2016; 13:523-34. [DOI: 10.1080/14789450.2016.1174584] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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32
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Aich U, Lakbub J, Liu A. State-of-the-art technologies for rapid and high-throughput sample preparation and analysis ofN-glycans from antibodies. Electrophoresis 2016; 37:1468-88. [DOI: 10.1002/elps.201500551] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Revised: 01/15/2016] [Accepted: 01/17/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Udayanath Aich
- Biopharmaceutical Analytical Sciences; Biopharmaceutical Development, GlaxoSmithKline; King of Prussia PA USA
| | - Jude Lakbub
- Biopharmaceutical Analytical Sciences; Biopharmaceutical Development, GlaxoSmithKline; King of Prussia PA USA
| | - Aston Liu
- Biopharmaceutical Analytical Sciences; Biopharmaceutical Development, GlaxoSmithKline; King of Prussia PA USA
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33
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Rohrer JS, Basumallick L, Hurum DC. Profiling N-linked oligosaccharides from IgG by high-performance anion-exchange chromatography with pulsed amperometric detection. Glycobiology 2016; 26:582-91. [PMID: 26786498 DOI: 10.1093/glycob/cww006] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Accepted: 01/08/2016] [Indexed: 01/22/2023] Open
Abstract
Understanding and characterizing protein therapeutic glycosylation is important with growing evidence that glycosylation impacts biological efficacy, pharmacokinetics and cellular toxicity. Protein expression systems and reactor conditions can impact glycosylation, leading to potentially undesirable glycosylation. For example, high-mannose species may be present, which are atypical of human antibody glycosylation. Their presence in the Fc domain has been linked to increased serum clearance of immunoglobulin G (IgG) antibodies. High-performance anion-exchange chromatography with pulsed amperometric detection (HPAE-PAD) is an effective tool for determining glycans present in glycoprotein therapeutics. We report an improved HPAE-PAD method for IgG oligosaccharide separation. The neutral glycans are well resolved, including separation of high-mannose species from typical human IgG glycans. Oligosaccharide identification was performed by comparison to known standards in conjunction with selective exoglycosidase digestion of both standards and released glycans. Retention times (RTs) of known glycans were compared with the retention times of maltose, maltotriose and maltotetraose standards to define a retention index value for each glycan. These retention indices were used to aid identification of glycans from an example monoclonal antibody sample of unknown glycosylation. Method ruggedness was evaluated across duplicate systems, analysts and triplicate column lots. Comparing two systems with different analysts and columns, retention time precision relative standard deviations (RSDs) were between 0.63 and 4.0% while retention indices precision RSDs ranged from 0.27 to 0.56%. The separation is orthogonal to capillary electrophoresis-based separation of labeled IgG oligosaccharides.
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Affiliation(s)
- Jeffrey S Rohrer
- Thermo Fisher Scientific, 1214 Oakmead Parkway, Sunnyvale, CA 94085, USA
| | - Lipika Basumallick
- Thermo Fisher Scientific, 1214 Oakmead Parkway, Sunnyvale, CA 94085, USA
| | - Deanna C Hurum
- Thermo Fisher Scientific, 1214 Oakmead Parkway, Sunnyvale, CA 94085, USA
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Toppazzini M, Coslovi A, Rossi M, Flamigni A, Baiutti E, Campa C. Capillary Electrophoresis of Mono- and Oligosaccharides. Methods Mol Biol 2016; 1483:301-338. [PMID: 27645743 DOI: 10.1007/978-1-4939-6403-1_16] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
This chapter reports an overview of the recent advances in the analysis of mono- and oligosaccharides by capillary electrophoresis (CE); furthermore, relevant reviews and research articles recently published in the field are tabulated. Additionally, pretreatments and procedures applied to uncharged and acidic carbohydrates (i.e., monosaccharides and lower oligosaccharides carrying carboxylate, sulfate, or phosphate groups) are described.Representative examples of such procedures are reported in detail, upon describing robust methodologies for the study of (1) neutral oligosaccharides derivatized by reductive amination and by formation of glycosylamines; (2) sialic acid derivatized with 2-aminoacridone, released from human serum immunoglobulin G; (3) anomeric couples of neutral glycosides separated using borate-based buffers; (4) unsaturated, underivatized oligosaccharides from lyase-treated alginate.
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Affiliation(s)
- Mila Toppazzini
- GSK Vaccines, Manufacturing Science & Technology Bellaria di Rosia, Sovicille (Siena), Italy
| | - Anna Coslovi
- GSK Vaccines, Manufacturing Science & Technology Bellaria di Rosia, Sovicille (Siena), Italy
| | - Marco Rossi
- Bracco Imaging SpA-CRB Trieste, AREA Science Park, Trieste, Italy
| | - Anna Flamigni
- Bracco Imaging SpA-CRB Trieste, AREA Science Park, Trieste, Italy
| | - Edi Baiutti
- Bracco Imaging SpA-CRB Trieste, AREA Science Park, Trieste, Italy
| | - Cristiana Campa
- GSK Vaccines, Manufacturing Science & Technology Bellaria di Rosia, Sovicille (Siena), Italy.
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Bush DR, Zang L, Belov AM, Ivanov AR, Karger BL. High Resolution CZE-MS Quantitative Characterization of Intact Biopharmaceutical Proteins: Proteoforms of Interferon-β1. Anal Chem 2015; 88:1138-46. [DOI: 10.1021/acs.analchem.5b03218] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- David R. Bush
- Barnett
Institute, Northeastern University, 360 Huntington Ave, Boston, Massachusetts 02115, United States
| | - Li Zang
- Analytical
Development Department, Biogen, Cambridge, Massachusetts 02142, United States
| | - Arseniy M. Belov
- Barnett
Institute, Northeastern University, 360 Huntington Ave, Boston, Massachusetts 02115, United States
| | - Alexander R. Ivanov
- Barnett
Institute, Northeastern University, 360 Huntington Ave, Boston, Massachusetts 02115, United States
| | - Barry L. Karger
- Barnett
Institute, Northeastern University, 360 Huntington Ave, Boston, Massachusetts 02115, United States
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36
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Donczo B, Szigeti M, Ostoros G, Gacs A, Tovari J, Guttman A. N-Glycosylation analysis of formalin fixed paraffin embedded samples by capillary electrophoresis. Electrophoresis 2015; 37:2292-6. [DOI: 10.1002/elps.201500446] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2015] [Revised: 11/06/2015] [Accepted: 11/07/2015] [Indexed: 12/17/2022]
Affiliation(s)
- Boglarka Donczo
- Horváth Csaba Laboratory of Bioseparation Sciences; University of Debrecen; Debrecen Hungary
| | - Marton Szigeti
- Horváth Csaba Laboratory of Bioseparation Sciences; University of Debrecen; Debrecen Hungary
- MTA-PE Translational Glycomics Group; Pannon University; Veszprem Hungary
| | - Gyorgyi Ostoros
- MTA-PE Translational Glycomics Group; Pannon University; Veszprem Hungary
- National Institute of Oncology; Department of Experimental Pharmacology; Budapest Hungary
| | - Alexandra Gacs
- National Institute of Oncology; Department of Experimental Pharmacology; Budapest Hungary
| | - Jozsef Tovari
- National Institute of Oncology; Department of Experimental Pharmacology; Budapest Hungary
| | - Andras Guttman
- Horváth Csaba Laboratory of Bioseparation Sciences; University of Debrecen; Debrecen Hungary
- MTA-PE Translational Glycomics Group; Pannon University; Veszprem Hungary
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37
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Pharmacokinetic Comparability of a Biosimilar Trastuzumab Anticipated from Its Physicochemical and Biological Characterization. BIOMED RESEARCH INTERNATIONAL 2015; 2015:874916. [PMID: 26682224 PMCID: PMC4668334 DOI: 10.1155/2015/874916] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Accepted: 10/29/2015] [Indexed: 12/15/2022]
Abstract
Comparability between a biosimilar and its reference product requires the evaluation of critical quality attributes that may impact on its pharmacological response. Herein we present a physicochemical characterization of a biosimilar trastuzumab focused on the attributes related to the pharmacokinetic response. Capillary isoelectrofocusing (cIEF) and cation exchange chromatography (CEX) were used to evaluate charge heterogeneity; glycosylation profiles were assessed through hydrophilic interaction liquid chromatography (HILIC); aggregates content was evaluated through size exclusion chromatography (SEC) while binding affinity to FcRn was evaluated using isothermal titration calorimetry (ITC). The biosimilar trastuzumab and its reference product exhibited a high degree of similarity for the evaluated attributes. In regard to the pharmacokinetic parameters, randomized, double blind, and two-arm parallel and prospective study was employed after the administration of a single intravenous dose in healthy volunteers. No significant differences were found between the pharmacokinetic profiles of both products. Our results confirm that similarity of the critical quality attributes between a biosimilar product, obtained from a different manufacturing process, and the reference product resulted in comparable pharmacokinetic profiles, diminishing the uncertainty related to the biosimilar's safety and efficacy.
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38
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Guttman A, Kerekgyarto M, Jarvas G. Effect of Separation Temperature on Structure Specific Glycan Migration in Capillary Electrophoresis. Anal Chem 2015; 87:11630-4. [DOI: 10.1021/acs.analchem.5b03727] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Andras Guttman
- Horváth
Csaba Laboratory of Bioseparation Sciences, MMKK, University of Debrecen, Debrecen, Egyetem tér 1, 4032 Hungary
- MTA-PE
Translational Glycomics Research Group, MUKKI, University of Pannonia, Veszprem, Egyetem u. 10, H-8200 Hungary
| | - Marta Kerekgyarto
- Horváth
Csaba Laboratory of Bioseparation Sciences, MMKK, University of Debrecen, Debrecen, Egyetem tér 1, 4032 Hungary
| | - Gabor Jarvas
- Horváth
Csaba Laboratory of Bioseparation Sciences, MMKK, University of Debrecen, Debrecen, Egyetem tér 1, 4032 Hungary
- MTA-PE
Translational Glycomics Research Group, MUKKI, University of Pannonia, Veszprem, Egyetem u. 10, H-8200 Hungary
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39
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Orthogonal Technologies for NISTmAb N-Glycan Structure Elucidation and Quantitation. ACTA ACUST UNITED AC 2015. [DOI: 10.1021/bk-2015-1201.ch004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2023]
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40
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Szekrényes Á, Park SS, Santos M, Lew C, Jones A, Haxo T, Kimzey M, Pourkaveh S, Szabó Z, Sosic Z, Feng P, Váradi C, de l'Escaille F, Falmagne JB, Sejwal P, Niedringhaus T, Michels D, Freckleton G, Hamm M, Manuilov A, Schwartz M, Luo JK, van Dyck J, Leung PK, Olajos M, Gu Y, Gao K, Wang W, Wegstein J, Tep S, Guttman A. Multi-Site N-glycan mapping study 1: Capillary electrophoresis - laser induced fluorescence. MAbs 2015; 8:56-64. [PMID: 26466659 PMCID: PMC4966509 DOI: 10.1080/19420862.2015.1107687] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
An international team that included 20 independent laboratories from biopharmaceutical companies, universities, analytical contract laboratories and national authorities in the United States, Europe and Asia was formed to evaluate the reproducibility of sample preparation and analysis of N-glycans using capillary electrophoresis of 8-aminopyrene-1,3,6-trisulfonic acid (APTS)-labeled glycans with laser induced fluorescence (CE-LIF) detection (16 sites) and ultra high-performance liquid chromatography (UHPLC, 12 sites; results to be reported in a subsequent publication). All participants used the same lot of chemicals, samples, reagents, and columns/capillaries to run their assays. Migration time, peak area and peak area percent values were determined for all peaks with >0.1% peak area. Our results demonstrated low variability and high reproducibility, both, within any given site as well across all sites, which indicates that a standard N-glycan analysis platform appropriate for general use (clone selection, process development, lot release, etc.) within the industry can be established.
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Affiliation(s)
- Ákos Szekrényes
- a Horváth Laboratory of Bioseparation Sciences; University of Debrecen ; Debrecen , H-4032 , Hungary
| | - SungAe Suhr Park
- b Drug Product Development; P&PD; Amgen; Inc. ; Thousand Oaks , CA 91320 , USA
| | | | | | - Aled Jones
- d ProZyme; Inc. ; Hayward , CA 94545 , USA
| | - Ted Haxo
- d ProZyme; Inc. ; Hayward , CA 94545 , USA
| | | | | | | | - Zoran Sosic
- e Analytical Development; Biogen ; Cambridge , MA 02142 , USA
| | - Peng Feng
- e Analytical Development; Biogen ; Cambridge , MA 02142 , USA
| | - Csaba Váradi
- a Horváth Laboratory of Bioseparation Sciences; University of Debrecen ; Debrecen , H-4032 , Hungary
| | | | | | - Preeti Sejwal
- g Bioanalytical and Discovery Analytical Sciences; Bristol-Myers Squibb ; Lawrenceville , NJ 08648 , USA.,t Current affiliation: Process Analytical, AbbVie , North Chicago , IL 60064 , USA
| | - Thomas Niedringhaus
- h Protein Analytical Chemistry Department ; Genentech; Inc. ; South San Francisco , CA 94080 , USA
| | - David Michels
- h Protein Analytical Chemistry Department ; Genentech; Inc. ; South San Francisco , CA 94080 , USA
| | - Gordon Freckleton
- i Bioanalytical Sciences; Eli Lilly and Company (previously ImClone) ; Branchburg , NJ 08876 , USA
| | - Melissa Hamm
- j Vaccine Bioprocess Research and Development; Merck Research Laboratories ; West Point , PA 19486 , USA
| | - Anastasiya Manuilov
- k Analytical Research and Development; Pfizer; Inc. ; Andover , MA 01810 , USA
| | - Melissa Schwartz
- l Analytical Science; Boehringer Ingelheim; Inc. ; Fremont , CA 94555 , USA
| | - Jiann-Kae Luo
- m Regeneron Pharmaceuticals; Inc. ; Tarrytown , NY 10591 , USA
| | - Jonathan van Dyck
- n Analytical Sciences; Seattle Genetics; Inc. ; Bothell , WA 98021 , USA
| | | | - Marcell Olajos
- p Analytical Research and Development; Gedeon Richter; Plc. ; Budapest , H-1475 , Hungary
| | - Yingmei Gu
- q Eli Lilly and Company ; Indianapolis ; IN 46285 , USA
| | - Kai Gao
- r Division of Monoclonal Antibody; National Institutes for Food and Drug Control ; Beijing , PR China
| | - Wenbo Wang
- r Division of Monoclonal Antibody; National Institutes for Food and Drug Control ; Beijing , PR China
| | | | | | - András Guttman
- a Horváth Laboratory of Bioseparation Sciences; University of Debrecen ; Debrecen , H-4032 , Hungary.,s MTA-PE Translational Glycomics Group; MUKKI; University of Pannonia ; Veszprém , Hungary
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41
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Assessment of physicochemical properties of rituximab related to its immunomodulatory activity. J Immunol Res 2015; 2015:910763. [PMID: 25973441 PMCID: PMC4418000 DOI: 10.1155/2015/910763] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Revised: 12/19/2014] [Accepted: 12/20/2014] [Indexed: 01/20/2023] Open
Abstract
Rituximab is a chimeric monoclonal antibody employed for the treatment of CD20-positive B-cell non-Hodgkin's lymphoma, chronic lymphocytic leukemia, rheumatoid arthritis, granulomatosis with polyangiitis and microscopic polyangiitis. It binds specifically to the CD20 antigen expressed on pre-B and consequently on mature B-lymphocytes of both normal and malignant cells, inhibiting their proliferation through apoptosis, CDC, and ADCC mechanisms. The immunomodulatory activity of rituximab is closely related to critical quality attributes that characterize its chemical composition and spatial configuration, which determine the recognition of CD20 and the binding to receptors or factors involved in its effector functions, while regulating the potential immunogenic response. Herein, we present a physicochemical and biological characterization followed by a pharmacodynamics and immunogenicity study to demonstrate comparability between two products containing rituximab. The physicochemical and biological characterization revealed that both products fit within the same response intervals exhibiting the same degree of variability. With regard to clinical response, both products depleted CD20+ B-cells until posttreatment recovery and no meaningful differences were found in their pharmacodynamic profiles. The evaluation of anti-chimeric antibodies did not show differential immunogenicity among products. Overall, these data confirm that similarity of critical quality attributes results in a comparable immunomodulatory activity.
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42
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Váradi C, Holló Z, Póliska S, Nagy L, Szekanecz Z, Váncsa A, Palatka K, Guttman A. Combination of IgG N-glycomics and corresponding transcriptomics data to identify anti-TNF-α treatment responders in inflammatory diseases. Electrophoresis 2015; 36:1330-5. [PMID: 25639738 DOI: 10.1002/elps.201400575] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Revised: 01/06/2015] [Accepted: 01/06/2015] [Indexed: 12/14/2022]
Abstract
Prediction of responsiveness in biological therapies is an important and challenging issue in different diseases. Analyzing glycosylation pattern changes of key serum glycoproteins is one of the possible avenues to follow disease remission. The aim of this study was to investigate the changes of serum IgG glycoforms in Crohn's disease (CD) and rheumatoid arthritis patients in response to antitumor necrosis factor alpha (anti-TNF-α) treatment. IgG was isolated from patient serum samples using Protein A affinity pull-down, followed by the release of N-glycans with peptide-N-glycosidase F. The released glycans were fluorescently tagged with 8-aminopyrene-1,3,6-trisulfonate and analyzed by CGE with laser-induced fluorescent detection. Significant alterations were detected between responders and nonresponders in both disease groups. In CD patients, disease-specific alteration was found in response to anti-TNF-α therapy, which was also confirmed by transcriptomics data analysis of the corresponding glycosyltransferases and glycosidases.
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Affiliation(s)
- Csaba Váradi
- Horváth Laboratory of Bioseparation Sciences, School of Medicine, MMKK, University of Debrecen, Debrecen, Hungary
| | | | - Szilárd Póliska
- Department of Biochemistry and Molecular Biology, University of Debrecen, Debrecen, Hungary
| | - László Nagy
- Department of Biochemistry and Molecular Biology, University of Debrecen, Debrecen, Hungary
| | - Zoltán Szekanecz
- Department of Rheumatology, School of Medicine, University of Debrecen, Debrecen, Hungary
| | - Andrea Váncsa
- Department of Rheumatology, School of Medicine, University of Debrecen, Debrecen, Hungary
| | - Károly Palatka
- Department of Internal Medicine, University of Debrecen, Debrecen, Hungary
| | - András Guttman
- Horváth Laboratory of Bioseparation Sciences, School of Medicine, MMKK, University of Debrecen, Debrecen, Hungary.,MTA-PE Translational Glycomics Research Group, MUKKI, University of Pannonia, Veszprém, Hungary
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43
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Millán Martín S, Delporte C, Farrell A, Navas Iglesias N, McLoughlin N, Bones J. Comparative analysis of monoclonal antibody N-glycosylation using stable isotope labelling and UPLC-fluorescence-MS. Analyst 2015; 140:1442-7. [DOI: 10.1039/c4an02345e] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A twoplex method using 12C6 and 13C6 stable isotope analogies of 2-aminobenzoic acid (2-AA) is described for LC-fluorescence-MS based quantitative and comparative analysis of N-glycans present on monoclonal antibodies.
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Affiliation(s)
- Silvia Millán Martín
- Characterisation and Comparability Laboratory
- NIBRT – The National Institute for Bioprocessing Research and Training
- Dublin
- Ireland
| | - Cédric Delporte
- Characterisation and Comparability Laboratory
- NIBRT – The National Institute for Bioprocessing Research and Training
- Dublin
- Ireland
- Laboratory of Pharmaceutical Chemistry & Analytical Platform of the Faculty of Pharmacy
| | - Amy Farrell
- Characterisation and Comparability Laboratory
- NIBRT – The National Institute for Bioprocessing Research and Training
- Dublin
- Ireland
| | - Natalia Navas Iglesias
- Department of Analytical Chemistry
- Faculty of Science
- Biomedical Research Institute
- University of Granada
- 18071 Granada
| | - Niaobh McLoughlin
- Characterisation and Comparability Laboratory
- NIBRT – The National Institute for Bioprocessing Research and Training
- Dublin
- Ireland
| | - Jonathan Bones
- Characterisation and Comparability Laboratory
- NIBRT – The National Institute for Bioprocessing Research and Training
- Dublin
- Ireland
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44
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O'Regan NL, Steinfelder S, Schwedler C, Rao GB, Srikantam A, Blanchard V, Hartmann S. Filariasis asymptomatically infected donors have lower levels of disialylated IgG compared to endemic normals. Parasite Immunol 2014; 36:713-20. [DOI: 10.1111/pim.12137] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Accepted: 08/07/2014] [Indexed: 12/12/2022]
Affiliation(s)
- N. L. O'Regan
- Institute of Immunology; Center for Infection Medicine; Freie Universität Berlin; Berlin Germany
| | - S. Steinfelder
- Institute of Immunology; Center for Infection Medicine; Freie Universität Berlin; Berlin Germany
| | - C. Schwedler
- Clinical Chemistry and Pathobiochemistry; Institute of Laboratory Medicine; Charité Medical University; Berlin Germany
| | - G. B. Rao
- Blue Peter Public Health and Research Centre-LEPRA Society; Hyderabad Andhra Pradesh India
| | - A. Srikantam
- Blue Peter Public Health and Research Centre-LEPRA Society; Hyderabad Andhra Pradesh India
| | - V. Blanchard
- Clinical Chemistry and Pathobiochemistry; Institute of Laboratory Medicine; Charité Medical University; Berlin Germany
| | - S. Hartmann
- Institute of Immunology; Center for Infection Medicine; Freie Universität Berlin; Berlin Germany
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45
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Schwedler C, Kaup M, Weiz S, Hoppe M, Braicu EI, Sehouli J, Hoppe B, Tauber R, Berger M, Blanchard V. Identification of 34 N-glycan isomers in human serum by capillary electrophoresis coupled with laser-induced fluorescence allows improving glycan biomarker discovery. Anal Bioanal Chem 2014; 406:7185-93. [PMID: 25234305 DOI: 10.1007/s00216-014-8168-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Revised: 09/03/2014] [Accepted: 09/05/2014] [Indexed: 02/06/2023]
Abstract
Alterations in glycosylation have been observed in many human diseases and specific changes in glycosylation have been proposed as relevant diagnostic information. Capillary electrophoresis coupled with laser-induced fluorescence (CE-LIF) is a robust method to quantify desialylated N-glycans that are labeled with 8-aminopyrene-1,3,6-trisulfonic acid prior to analysis. To date, only a maximum of 12 glycan structures, the most abundant ones, have been identified by CE-LIF to characterize glycome modulations of total serum in the course of the diseases. In most forms of cancer, findings using CE-LIF were limited to the increase of triantennary structures carrying a Lewis(x) epitope. In this work, we identified 32 linkage and positional glycan isomers in healthy human serum using exoglycosidase digestions as well as standard glycoproteins, for which we report the assignment of novel structures. It was possible to identify and quantify 34 glycan isomers in the serum of primary epithelial ovarian cancer patients (EOC). Reduced levels of diantennary structures and of high-mannose 5 were statistically significant in the EOC samples, and also, elevated branching as well as increased antennary fucosylation were observed. For the first time, we could demonstrate that not only antennary fucosylation was of relevance in tetraantennary structures but also core-fucosylated tetraantennary N-glycans were statistically increased in EOC patients. The results of the current study provide an improved dataset to be used in glycan biomarker discovery.
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Affiliation(s)
- Christian Schwedler
- Institute of Laboratory Medicine, Clinical Chemistry and Pathobiochemistry, Charité Medical University, Augustenburger Platz 1, 13353, Berlin, Germany
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Creamer JS, Oborny NJ, Lunte SM. Recent advances in the analysis of therapeutic proteins by capillary and microchip electrophoresis. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2014; 6:5427-5449. [PMID: 25126117 PMCID: PMC4128283 DOI: 10.1039/c4ay00447g] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
The development of therapeutic proteins and peptides is an expensive and time-intensive process. Biologics, which have become a multi-billion dollar industry, are chemically complex products that require constant observation during each stage of development and production. Post-translational modifications along with chemical and physical degradation from oxidation, deamidation, and aggregation, lead to high levels of heterogeneity that affect drug quality and efficacy. The various separation modes of capillary electrophoresis (CE) are commonly utilized to perform quality control and assess protein heterogeneity. This review attempts to highlight the most recent developments and applications of CE separation techniques for the characterization of protein and peptide therapeutics by focusing on papers accepted for publication in the in the two-year period between January 2012 and December 2013. The separation principles and technological advances of CE, capillary gel electrophoresis, capillary isoelectric focusing, capillary electrochromatography and CE-mass spectrometry are discussed, along with exciting new applications of these techniques to relevant pharmaceutical issues. Also included is a small selection of papers on microchip electrophoresis to show the direction this field is moving with regards to the development of inexpensive and portable analysis systems for on-site, high-throughput analysis.
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Affiliation(s)
- Jessica S. Creamer
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, KS, USA
- Ralph N. Adams Institute for Bioanalytical Chemistry, University of Kansas, Lawrence, KS, USA
| | - Nathan J. Oborny
- Department of Bioengineering, University of Kansas, Lawrence, KS, USA
- Ralph N. Adams Institute for Bioanalytical Chemistry, University of Kansas, Lawrence, KS, USA
| | - Susan M. Lunte
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, KS, USA
- Department of Bioengineering, University of Kansas, Lawrence, KS, USA
- Ralph N. Adams Institute for Bioanalytical Chemistry, University of Kansas, Lawrence, KS, USA
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Liu M, Zhang Y, Chen Y, Yan G, Shen C, Cao J, Zhou X, Liu X, Zhang L, Shen H, Lu H, He F, Yang P. Efficient and Accurate Glycopeptide Identification Pipeline for High-Throughput Site-Specific N-Glycosylation Analysis. J Proteome Res 2014; 13:3121-9. [DOI: 10.1021/pr500238v] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Mingqi Liu
- Department
of Chemistry, Fudan University, 220 Han Dan Road, Shanghai 200433, P. R. China
- Institutes
of Biomedical Sciences, Fudan University, 138 YiXueYuan Road, Shanghai 200032, P. R. China
| | - Yang Zhang
- Institutes
of Biomedical Sciences, Fudan University, 138 YiXueYuan Road, Shanghai 200032, P. R. China
| | - Yaohan Chen
- Department
of Chemistry, Fudan University, 220 Han Dan Road, Shanghai 200433, P. R. China
- Institutes
of Biomedical Sciences, Fudan University, 138 YiXueYuan Road, Shanghai 200032, P. R. China
| | - Guoquan Yan
- Department
of Chemistry, Fudan University, 220 Han Dan Road, Shanghai 200433, P. R. China
- Institutes
of Biomedical Sciences, Fudan University, 138 YiXueYuan Road, Shanghai 200032, P. R. China
| | - Chengping Shen
- Cloudscientific Technology Co., Ltd., 585 Long Hua West Road, Xuhui District, Shanghai 200232, P. R. China
| | - Jing Cao
- Department
of Chemistry, Fudan University, 220 Han Dan Road, Shanghai 200433, P. R. China
- Institutes
of Biomedical Sciences, Fudan University, 138 YiXueYuan Road, Shanghai 200032, P. R. China
| | - Xinwen Zhou
- Department
of Chemistry, Fudan University, 220 Han Dan Road, Shanghai 200433, P. R. China
- Institutes
of Biomedical Sciences, Fudan University, 138 YiXueYuan Road, Shanghai 200032, P. R. China
| | - Xiaohui Liu
- Department
of Chemistry, Fudan University, 220 Han Dan Road, Shanghai 200433, P. R. China
- Institutes
of Biomedical Sciences, Fudan University, 138 YiXueYuan Road, Shanghai 200032, P. R. China
| | - Lei Zhang
- Department
of Chemistry, Fudan University, 220 Han Dan Road, Shanghai 200433, P. R. China
- Institutes
of Biomedical Sciences, Fudan University, 138 YiXueYuan Road, Shanghai 200032, P. R. China
| | - Huali Shen
- Institutes
of Biomedical Sciences, Fudan University, 138 YiXueYuan Road, Shanghai 200032, P. R. China
| | - Haojie Lu
- Department
of Chemistry, Fudan University, 220 Han Dan Road, Shanghai 200433, P. R. China
- Institutes
of Biomedical Sciences, Fudan University, 138 YiXueYuan Road, Shanghai 200032, P. R. China
| | - Fuchu He
- Institutes
of Biomedical Sciences, Fudan University, 138 YiXueYuan Road, Shanghai 200032, P. R. China
- State Key Laboratory of Proteomics, 33 Life Science Park, Beijing 102206, P. R. China
| | - Pengyuan Yang
- Department
of Chemistry, Fudan University, 220 Han Dan Road, Shanghai 200433, P. R. China
- Institutes
of Biomedical Sciences, Fudan University, 138 YiXueYuan Road, Shanghai 200032, P. R. China
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Schwedler C, Kaup M, Petzold D, Hoppe B, Braicu EI, Sehouli J, Ehlers M, Berger M, Tauber R, Blanchard V. Sialic acid methylation refines capillary electrophoresis laser-induced fluorescence analyses of immunoglobulin GN-glycans of ovarian cancer patients. Electrophoresis 2014; 35:1025-31. [DOI: 10.1002/elps.201300414] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Christian Schwedler
- Institute of Laboratory Medicine; Clinical Chemistry and Pathobiochemistry; Charité-Universitätsmedizin Berlin; Berlin Germany
- Department of Biology, Chemistry and Pharmacy; Freie Universität Berlin; Berlin Germany
| | - Matthias Kaup
- Institute of Laboratory Medicine; Clinical Chemistry and Pathobiochemistry; Charité-Universitätsmedizin Berlin; Berlin Germany
| | - Dominique Petzold
- Institute of Laboratory Medicine; Clinical Chemistry and Pathobiochemistry; Charité-Universitätsmedizin Berlin; Berlin Germany
| | - Berthold Hoppe
- Institute of Laboratory Medicine; Clinical Chemistry and Pathobiochemistry; Charité-Universitätsmedizin Berlin; Berlin Germany
- Laboratory Medicine & Toxicology (Labor Berlin - Charité Vivantes GmbH); Berlin Germany
| | - Elena Iona Braicu
- Department of Gynecology; Charité Medical University; Berlin Germany
| | - Jalid Sehouli
- Department of Gynecology; Charité Medical University; Berlin Germany
| | - Marc Ehlers
- Laboratory of Tolerance and Autoimmunity; Institute for Systemic Inflammation Research, University of Luebeck; Luebeck Germany
| | - Markus Berger
- Institute of Laboratory Medicine; Clinical Chemistry and Pathobiochemistry; Charité-Universitätsmedizin Berlin; Berlin Germany
| | - Rudolf Tauber
- Institute of Laboratory Medicine; Clinical Chemistry and Pathobiochemistry; Charité-Universitätsmedizin Berlin; Berlin Germany
| | - Véronique Blanchard
- Institute of Laboratory Medicine; Clinical Chemistry and Pathobiochemistry; Charité-Universitätsmedizin Berlin; Berlin Germany
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Adamczyk B, Tharmalingam-Jaikaran T, Schomberg M, Szekrényes Á, Kelly RM, Karlsson NG, Guttman A, Rudd PM. Comparison of separation techniques for the elucidation of IgG N-glycans pooled from healthy mammalian species. Carbohydr Res 2014; 389:174-85. [PMID: 24680513 DOI: 10.1016/j.carres.2014.01.018] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2013] [Revised: 01/13/2014] [Accepted: 01/23/2014] [Indexed: 12/25/2022]
Abstract
The IgG N-glycome provides sufficient complexity and information content to serve as an excellent source for biomarker discovery in mammalian health. Since oligosaccharides play a significant role in many biological processes it is very important to understand their structure. The glycosylation is cell type specific as well as highly variable depending on the species producing the IgG. We evaluated the variation of N-linked glycosylation of human, bovine, ovine, equine, canine and feline IgG using three orthogonal glycan separation techniques: hydrophilic interaction liquid chromatography (HILIC)-UPLC, reversed phase (RP)-UPLC and capillary electrophoresis with laser induced fluorescence detection (CE-LIF). The separation of the glycans by these high resolution methods yielded different profiles due to diverse chemistries. However, the % abundance of structures obtained by CE-LIF and HILIC-UPLC were similar, whereas the analysis by RP-UPLC was difficult to compare as the structures were separated by classes of glycans (highly mannosylated, fucosylated, bisected, fucosylated and bisected) resulting in the co-elution of many structures. The IgGs from various species were selected due to the complexity and variation in their N-glycan composition thereby highlighting the complementarity of these separation techniques.
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Affiliation(s)
- Barbara Adamczyk
- GlycoScience Group, NIBRT-The National Institute for Bioprocessing Research and Training, Fosters Avenue, Mount Merrion, Blackrock, Co. Dublin, Ireland; Medical Biochemistry, University of Gothenburg, Gothenburg, Sweden
| | - Tharmala Tharmalingam-Jaikaran
- GlycoScience Group, NIBRT-The National Institute for Bioprocessing Research and Training, Fosters Avenue, Mount Merrion, Blackrock, Co. Dublin, Ireland
| | - Michael Schomberg
- GlycoScience Group, NIBRT-The National Institute for Bioprocessing Research and Training, Fosters Avenue, Mount Merrion, Blackrock, Co. Dublin, Ireland
| | - Ákos Szekrényes
- Horváth Laboratory for Bioseparation Sciences, Research Center for Molecular Medicine, University of Debrecen, 4032 Debrecen, Hungary
| | - Ronan M Kelly
- GlycoScience Group, NIBRT-The National Institute for Bioprocessing Research and Training, Fosters Avenue, Mount Merrion, Blackrock, Co. Dublin, Ireland
| | | | - Andràs Guttman
- Horváth Laboratory for Bioseparation Sciences, Research Center for Molecular Medicine, University of Debrecen, 4032 Debrecen, Hungary; MTA-TKI Translational Glycomics Research Group, University of Pannonia, Veszprem, Hungary
| | - Pauline M Rudd
- GlycoScience Group, NIBRT-The National Institute for Bioprocessing Research and Training, Fosters Avenue, Mount Merrion, Blackrock, Co. Dublin, Ireland.
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