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Mittermayr S, Bones J, Guttman A. Unraveling the Glyco-Puzzle: Glycan Structure Identification by Capillary Electrophoresis. Anal Chem 2013; 85:4228-38. [DOI: 10.1021/ac4006099] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Stefan Mittermayr
- Horváth
Laboratory of
Bioseparation Sciences, Regional Center for Molecular Medicine, University of Debrecen, Debrecen, Hungary
| | - Jonathan Bones
- NIBRT−The National Institute for Bioprocessing Research and Training, Fosters Avenue, Mount Merrion, Blackrock, Co. Dublin, Ireland
| | - András Guttman
- Horváth
Laboratory of
Bioseparation Sciences, Regional Center for Molecular Medicine, University of Debrecen, Debrecen, Hungary
- MTA-PE Translational Glycomics
Group, University of Pannonia, Veszprem,
Hungary
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2
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Palmisano G, Larsen MR, Packer NH, Thaysen-Andersen M. Structural analysis of glycoprotein sialylation – part II: LC-MS based detection. RSC Adv 2013. [DOI: 10.1039/c3ra42969e] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
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3
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Machado YJ, Rabasa Y, Montesinos R, Cremata J, Besada V, Fuentes D, Castillo A, de la Luz KR, Vázquez AM, Himly M. Physicochemical and biological characterization of 1E10 anti-idiotype vaccine. BMC Biotechnol 2011; 11:112. [PMID: 22108317 PMCID: PMC3238287 DOI: 10.1186/1472-6750-11-112] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2011] [Accepted: 11/22/2011] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND 1E10 monoclonal antibody is a murine anti-idiotypic antibody that mimics N-glycolyl-GM3 gangliosides. This antibody has been tested as an anti-idiotypic cancer vaccine, adjuvated in Al(OH)3, in several clinical trials for melanoma, breast, and lung cancer. During early clinical development this mAb was obtained in vivo from mice ascites fluid. Currently, the production process of 1E10 is being transferred from the in vivo to a bioreactor-based method. RESULTS Here, we present a comprehensive molecular and immunological characterization of 1E10 produced by the two different production processes in order to determine the impact of the manufacturing process in vaccine performance. We observed differences in glycosylation pattern, charge heterogeneity and structural stability between in vivo-produced 1E10 and bioreactor-obtained 1E10. Interestingly, these modifications had no significant impact on the immune responses elicited in two different animal models. CONCLUSIONS Changes in 1E10 primary structure like glycosylation; asparagine deamidation and oxidation affected 1E10 structural stability but did not affect the immune response elicited in mice and chickens when compared to 1E10 produced in mice.
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Affiliation(s)
- Yoan J Machado
- Center for Molecular Immunology, Atabey Siboney, Playa, Havana 11600, Cuba.
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Valdés R, Ibarra N, González M, Alvarez T, García J, Llambias R, Pérez CA, Quintero O, Fischer R. CB.Hep-1 hybridoma growth and antibody production using protein-free medium in a hollow fiber bioreactor. Cytotechnology 2011; 35:145-54. [PMID: 19003291 DOI: 10.1023/a:1017921702775] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The protein-free medium TurboDoma HP.1 (THP.1) was used to produce the CB.Hep-1 monoclonal antibody (mAb) in a CP-1000 hollow fiber bioreactor (HFB). This mAb is used for the immunopurification of recombinant hepatitis B surface antigen (rHBsAg), which is included in a vaccine preparation against the Hepatitis B Virus. By using the experimental conditions tested in this work we were able to generate more than 433 mg of IgG in 43 days. The maximum antibody concentration obtained was about 2.4 mg ml(-1)and the IgG production per day was approximately 11 mg of monoclonal antibody, which constitutes a good concentration value in comparison to the results obtained in ascitic fluid, where concentration for this hybridoma was around 3 mg ml(-1). We used different analytical methods to control the quality of mAbs, obtained from the in vitro system. They included affinity constant determination, analysis of N-glycan structures, immunoaffinity chromatography and antigen binding properties. The results obtained suggest that no significant changes occurred in the mean characteristics of the mAb harvested from the bioreactor during the 43 days of cultivation.
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Affiliation(s)
- R Valdés
- Monoclonal Antibodies Division, Havana University, Cuba,
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5
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Harvey DJ. Derivatization of carbohydrates for analysis by chromatography; electrophoresis and mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2011; 879:1196-225. [DOI: 10.1016/j.jchromb.2010.11.010] [Citation(s) in RCA: 182] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2010] [Revised: 11/01/2010] [Accepted: 11/06/2010] [Indexed: 12/21/2022]
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6
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Kolarich D, Weber A, Turecek PL, Schwarz HP, Altmann F. Comprehensive glyco-proteomic analysis of human alpha1-antitrypsin and its charge isoforms. Proteomics 2006; 6:3369-80. [PMID: 16622833 DOI: 10.1002/pmic.200500751] [Citation(s) in RCA: 136] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Human alpha1-antitrypsin (A1PI) is a well-known glycoprotein in human plasma important for the protection of tissues from proteolytic enzymes. The three N-glycosylation sites of A1PI contain diantennary N-glycans but also triantennary and even traces of tetraantennary structures leading to the typical IEF pattern observed for A1PI. Here we present an approach to characterize A1PI isoforms from human plasma and its PTMs by LC-ESI-MS and LC-ESI-MS/MS of peptides obtained by proteolytic digestion. The single cysteine residue of A1PI formed a disulfide bridge with free cysteine. The variability of the number of antennae and hence sialic acids on glycosylation site N107, which even contained minute amounts of tetraantennary structures, emerged as a major cause for the IEF pattern of A1PI. Only negligible amounts of triantennary structures were identified attached to N70, and exclusively diantennary structures were present on site N271 in each of the isoforms analyzed. Exoglycosidase digests revealed alpha2,6-linked neuraminic acids on diantennary N-glycans, and triantennary contained additionally one single alpha2,3-neuraminic acid per N-glycan, which, together with a fucose, formed a sialyl Lewis X determinant on the beta1,4-linked N-acetylglucosamine, as shown by 2-D-HPLC of pyridylaminated asialoglycans. Fucosylation of diantennary structures was marginal and of the core alpha1,6 type.
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Affiliation(s)
- Daniel Kolarich
- Department of Chemistry, Biochemistry Division, University of Natural Resources and Applied Life Sciences (BOKU), Vienna, Austria.
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7
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Todoroki K, Hayama T, Ijiri S, Kazuta A, Yoshida H, Nohta H, Yamaguchi M. Rhodamine B amine as a highly sensitive fluorescence derivatization reagent for saccharides in reversed-phase liquid chromatography. J Chromatogr A 2004; 1038:113-20. [PMID: 15233527 DOI: 10.1016/j.chroma.2004.03.049] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
6-Rhodamine B amine functions as a highly sensitive fluorescence derivatization reagent for mono- and oligosaccharides; it reacts with the reducing end of saccharides under acidic conditions. The fluorescent derivatives of five monosaccharides can be separated within 25 min by reversed-phase liquid chromatography with isocratic elution. The detection limits (S/N = 3) for mono-, di-, and oligosaccharides are 7-51, 13, and 9-35 fmol/20 microl injection, which correspond to analyte concentrations of 35-255, 65, 45-175 nM, respectively. We have applied this derivatization method successfully to the analysis of the components of oligosaccharides in glycoproteins (ribonuclease B and fetuin) following their acidic or enzymatic hydrolysis. The results from these analyses are in good agreements with the reported values established previously.
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Affiliation(s)
- Kenichiro Todoroki
- Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1 Nanakuma, Johnan-ku, Fukuoka 814-0180, Japan
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8
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Lamari FN, Kuhn R, Karamanos NK. Derivatization of carbohydrates for chromatographic, electrophoretic and mass spectrometric structure analysis. J Chromatogr B Analyt Technol Biomed Life Sci 2003; 793:15-36. [PMID: 12880852 DOI: 10.1016/s1570-0232(03)00362-3] [Citation(s) in RCA: 180] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Carbohydrates, either alone or as constituents of glycoproteins, proteoglycans and glycolipids, are mediators of several cellular events and (patho)physiological processes. Progress in the "glycome" project is closely related to the analytical tools used to define carbohydrate structure and correlate structure with function. Chromatography, electrophoresis and mass spectrometry are the indispensable analytical tools of the on-going research. Carbohydrate derivatization is required for most of these analytical procedures. This review article gives an overview of derivatization methods of carbohydrates for their liquid chromatographic and electrophoretic separation, as well as the mass spectrometric characterization. Pre-column and on-capillary derivatization methods are presented with special emphasis on the derivatization of large carbohydrates.
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Affiliation(s)
- Fotini N Lamari
- Department of Chemistry, University of Patras, 261 10, Patras, Greece
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9
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Yuen CT, Gee CK, Jones C. High-performance liquid chromatographic profiling of fluorescent labelled N-glycans on glycoproteins. Biomed Chromatogr 2002; 16:247-54. [PMID: 11933024 DOI: 10.1002/bmc.154] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Monitoring protein glycosylation is becoming increasingly important as novel recombinant glycoprotein therapeutics, such as glycoprotein hormones, cytokines and clotting factors, are introduced into clinical use. In this report, we describe an HPLC strategy and an improved and simplified pre-column derivatization procedure to profile N-linked glycans obtained from a variety of commercially available glycoproteins as examples. N-Glycans were first released by peptide:N-glycosidase F and labelled with the fluorescent label, 4-aminobenzoic acid by reductive amination. The labelled N-Glycans were then resolved by normal-phase HPLC and the N-glycan profile could be further improved by separating the N-glycans first according to charge by anion-exchange HPLC prior to the normal-phase HPLC. If required, identification of the fractionated derivatized oligosaccharides can be determined by mass spectrometry. The whole profiling process is simple and can be implemented in most laboratories. Because of the high sensitivity, batch glycan-analysis of low-yield recombinant glycoproteins such as samples in ampoules or obtained in the early stage of production development is possible.
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Affiliation(s)
- C-T Yuen
- Laboratory for Molecular Structure, National Institute for Biological Standards and Control, Blanche Lane, South Mimms, Potters Bar, Hertfordshire EN6 3QG, UK.
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Affiliation(s)
- Yehia Mechref
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, USA
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11
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Hase S. Chapter 28 Pre- and post-column detection-oriented derivatization techniques in HPLC of carbohydrates. JOURNAL OF CHROMATOGRAPHY LIBRARY 2002. [DOI: 10.1016/s0301-4770(02)80053-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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12
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Huang Z, Prickett T, Potts M, Helm RF. The use of the 2-aminobenzoic acid tag for oligosaccharide gel electrophoresis. Carbohydr Res 2000; 328:77-83. [PMID: 11005578 DOI: 10.1016/s0008-6215(00)00045-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Gel electrophoresis of fluorophore labeled saccharides provides a rapid and reliable method to screen enzymatic and/or chemical treatments of polysaccharides and glycoconjugates, as well as a sensitive and efficient microscale method to separate and purify oligosaccharides for further analysis. A simple and inexpensive method of derivatization and analysis using 2-aminobenzoic acid (anthranilic acid, AA) is described and applied to the extracellular polysaccharide released by the desiccation tolerant cyanobacterium Nostoc commune DRH-1. The results of these analyses suggest a possible protective functionality of two pendent groups, as well as a potential relationship between these groups and the desiccation tolerance of the organism.
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Affiliation(s)
- Z Huang
- Fralin Biotechnology Center, Virginia Tech, Blacksburg 24061, USA
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Affiliation(s)
- K R Anumula
- Analytical Sciences Department, SmithKline Beecham Pharmaceuticals, King of Prussia, Pennsylvania 19406, USA
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Montesino R, Nimtz M, Quintero O, García R, Falcón V, Cremata JA. Characterization of the oligosaccharides assembled on the Pichia pastoris-expressed recombinant aspartic protease. Glycobiology 1999; 9:1037-43. [PMID: 10521540 DOI: 10.1093/glycob/9.10.1037] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Aspartic protease, widely used as a milk-coagulating agent in industrial cheese production, contains three potential N-glycosylation sites. In this study, we report the characterization of N-linked oligosaccharides on recombinant aspartic protease secreted from the methylotrophic yeast Pichia pastoris using a combination of mass spectrometric, 2D chromatographic, chemical and enzymatic methods. The carbohydrates from site I (Asn79) were found to range from Man6-17GlcNAc2 with 50% bearing a phospho-diester-motif, site II (Asn113) was not occupied and site III (Asn188) contained mostly uncharged species ranging from Man-13GlcNAc2. These charged groups are not affecting the transport through the secretion pathway of the recombinant glycoprotein. Changes from a molasses-based medium to a minimal salts-based medium led to a clear reduction of the degree of phosphorylation of the N-glycan population.
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Affiliation(s)
- R Montesino
- GlycoLab, BioIndustry Division, Center for Genetic Engineering and Biotechnology, Havana, Cuba
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15
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Montesino R, García R, Quintero O, Cremata JA. Variation in N-linked oligosaccharide structures on heterologous proteins secreted by the methylotrophic yeast Pichia pastoris. Protein Expr Purif 1998; 14:197-207. [PMID: 9790882 DOI: 10.1006/prep.1998.0933] [Citation(s) in RCA: 69] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We report the characterization of N-linked oligosaccharides on six foreign glycoproteins secreted from the methylotrophic yeast Pichia pastoris. These proteins included: a bacterial enzyme, Bacillus licheniformis alpha-amylase; three fungal enzymes, Saccharomyces cerevisiae invertase, Penicillium minioluteum dextranase, and Mucor pusillus aspartic protease; and two higher eukaryotic proteins, Boophilus microplus (tick) gut antigen and bovine enterokinase catalytic subunit. The carbohydrates on these proteins were observed to vary in size, with Man8GlcNAc2 and Man9GlcNAc2 structures being the most frequently observed species. Substantial amounts of shorter oligomannoside structures were present only on invertase, and longer structures (up to Man18GlcNAc2) were common on aspartic protease and enterokinase. Phosphorylated oligosaccharides were observed on one protein, aspartic protease. Unlike oligosaccharides on glycoproteins secreted from S. cerevisiae, no terminal alpha1,3-linked mannosylation was observed on any of the six P. pastoris-secreted proteins. Changing the growth and induction medium from a minimal salt-based medium to a molasses-based medium had little effect on the size of the oligomannosides. From these results, it is apparent that most foreign proteins secreted from P. pastoris are not subjected to the extensive mannosylation (hyperglycosylation) that commonly occurs in proteins secreted from S. cerevisiae.
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Affiliation(s)
- R Montesino
- Bio-Industry Division, GlycoLab, Havana, Cuba
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