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Melo Diaz JM, Peel SR, Spencer DI, Hendel JL. Extraction and purification of a High Mannose type oligosaccharide from Phaseolus lunatus beans by oxidative release with sodium hypochlorite. Carbohydr Res 2022; 517:108583. [DOI: 10.1016/j.carres.2022.108583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 01/20/2022] [Accepted: 05/04/2022] [Indexed: 11/30/2022]
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Melo Diaz JM, Moran AB, Peel SR, Hendel JL, Spencer DIR. Egg yolk sialylglycopeptide: purification, isolation and characterization of N-glycans from minor glycopeptide species. Org Biomol Chem 2022; 20:4905-4914. [PMID: 35593095 DOI: 10.1039/d2ob00615d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Sialylglycopeptide (SGP) is a readily available naturally occurring glycopeptide obtained from hen egg yolk which is now commercially available. During SGP extraction, other minor glycopeptide species are identified, bearing N-glycan structures that might be of interest, such as asymmetrically branched and triantennary glycans. As the scale of SGP production increases, recovery of minor glycopeptides and their N-glycans can become more feasible. In this paper, we aim to provide structural characterization of the N-glycans derived from these minor glycopeptides.
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Affiliation(s)
- Javier Mauricio Melo Diaz
- Ludger Ltd, Culham Science Centre, Oxfordshire, Abingdon, UK. .,Department of Chemistry Royal College of Surgeons in Ireland, 123 St Stephen's Green, Dublin, Ireland
| | - Alan B Moran
- Ludger Ltd, Culham Science Centre, Oxfordshire, Abingdon, UK. .,Leiden University Medical Center, Center for Proteomics and Metabolomics, 2300 RC Leiden, the Netherlands
| | - Simon R Peel
- Ludger Ltd, Culham Science Centre, Oxfordshire, Abingdon, UK.
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Hendel JL, Gardner RA, Spencer DIR. Automation of Immunoglobulin Glycosylation Analysis. Exp Suppl 2021; 112:173-204. [PMID: 34687010 DOI: 10.1007/978-3-030-76912-3_5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The development of reliable, affordable, high-resolution glycomics technologies that can be used for many samples in a high-throughput manner are essential for both the optimization of glycosylation in the biopharmaceutical industry as well as for the advancement of clinical diagnostics based on glycosylation biomarkers. We will use this chapter to review the sample preparation processes that have been used on liquid-handling robots to obtain high-quality glycomics data for both biopharmaceutical and clinical antibody samples. This will focus on glycoprotein purification, followed by glycan or glycopeptide generation, derivatization and enrichment. The use of liquid-handling robots for glycomics studies on other sample types beyond antibodies will not be discussed here. We will summarize our thoughts on the current status of the field and explore the benefits and challenges associated with developing and using automated platforms for sample preparation. Finally, the future outlook for the automation of glycomics will be discussed along with a projected impact on the field in general.
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Affiliation(s)
- Jenifer L Hendel
- Ludger Limited, Culham Science Centre, Abingdon, Oxfordshire, UK
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Jegatheeswaran S, Asnani A, Forman A, Hendel JL, Moore CJ, Nejatie A, Wang A, Wang JW, Auzanneau FI. Recognition of Dimeric Lewis X by Anti-Dimeric Le x Antibody SH2. Vaccines (Basel) 2020; 8:vaccines8030538. [PMID: 32957489 PMCID: PMC7563222 DOI: 10.3390/vaccines8030538] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 09/11/2020] [Accepted: 09/14/2020] [Indexed: 11/16/2022] Open
Abstract
The carbohydrate antigen dimeric Lewis X (DimLex), which accumulates in colonic and liver adenocarcinomas, is a valuable target to develop anti-cancer therapeutics. Using the native DimLex antigen as a vaccine would elicit an autoimmune response against the Lex antigen found on normal, healthy cells. Thus, we aim to study the immunogenic potential of DimLex and search internal epitopes displayed by DimLex that remain to be recognized by anti-DimLex monoclonal antibodies (mAbs) but no longer possess epitopes recognized by anti-Lex mAbs. In this context, we attempted to map the epitope recognized by anti-DimLex mAb SH2 by titrations and competitive inhibition experiments using oligosaccharide fragments of DimLex as well as Lex analogues. We compare our results with that reported for anti-Lex mAb SH1 and anti-polymeric Lex mAbs 1G5F6 and 291-2G3-A. While SH1 recognizes an epitope localized to the non-reducing end Lex trisaccharide, SH2, 1G5F6, and 291-2G3-A have greater affinity for DimLex conjugates than for Lex conjugates. We show, however, that the Lex trisaccharide is still an important recognition element for SH2, which (like 1G5F6 and 291-2G3-A) makes contacts with all three sugar units of Lex. In contrast to mAb SH1, anti-polymeric Lex mAbs make contact with the GlcNAc acetamido group, suggesting that epitopes extend further from the non-reducing end Lex. Results with SH2 show that this epitope is only recognized when DimLex is presented by glycoconjugates. We have reported that DimLex adopts two conformations around the β-d-GlcNAc-(1→3)-d-Gal bond connecting the Lex trisaccharides. We propose that only one of these conformations is recognized by SH2 and that this conformation is favored when the hexasaccharide is presented as part of a glycoconjugate such as DimLex-bovine serum albumin (DimLex-BSA). Proper presentation of the oligosaccharide candidate via conjugation to a protein or lipid is essential for the design of an anti-cancer vaccine or immunotherapeutic based on DimLex.
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Affiliation(s)
- Sinthuja Jegatheeswaran
- Department of Chemistry, University of Guelph, Guelph, ON N1G 2W1, Canada; (S.J.); (A.A.); (A.F.); (J.L.H.); (C.J.M.); (A.N.); (A.W.); (J.-W.W.)
- Immunology Department, University of Toronto, 1 King’s College Circle, Toronto, ON M5S-1A8, Canada
| | - Ari Asnani
- Department of Chemistry, University of Guelph, Guelph, ON N1G 2W1, Canada; (S.J.); (A.A.); (A.F.); (J.L.H.); (C.J.M.); (A.N.); (A.W.); (J.-W.W.)
- Department of Chemistry, Universitas Jenderal Soedirman, Purwokerto, Jawa Tengah 53123, Indonesia
| | - Adam Forman
- Department of Chemistry, University of Guelph, Guelph, ON N1G 2W1, Canada; (S.J.); (A.A.); (A.F.); (J.L.H.); (C.J.M.); (A.N.); (A.W.); (J.-W.W.)
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S-3H6, Canada
| | - Jenifer L. Hendel
- Department of Chemistry, University of Guelph, Guelph, ON N1G 2W1, Canada; (S.J.); (A.A.); (A.F.); (J.L.H.); (C.J.M.); (A.N.); (A.W.); (J.-W.W.)
- Research and Development, Ludger Ltd., Culham Science Centre, Abingdon, Oxfordshire OX14-3EB, UK
| | - Christopher J. Moore
- Department of Chemistry, University of Guelph, Guelph, ON N1G 2W1, Canada; (S.J.); (A.A.); (A.F.); (J.L.H.); (C.J.M.); (A.N.); (A.W.); (J.-W.W.)
- Quality Control, SteriMax Inc., 2770 Portland Dr, Oakville, ON L6H-6R4, Canada
| | - Ali Nejatie
- Department of Chemistry, University of Guelph, Guelph, ON N1G 2W1, Canada; (S.J.); (A.A.); (A.F.); (J.L.H.); (C.J.M.); (A.N.); (A.W.); (J.-W.W.)
- Department of Chemistry, Simon Fraser University, Burnaby, BC V5A1S6, Canada
| | - An Wang
- Department of Chemistry, University of Guelph, Guelph, ON N1G 2W1, Canada; (S.J.); (A.A.); (A.F.); (J.L.H.); (C.J.M.); (A.N.); (A.W.); (J.-W.W.)
- SGS-CSTC Standards Technical Services Co., Ltd. 4/F, 4th Building, 889 Yishan Road, Xuhui District, Shanghai 200233, China
| | - Jo-Wen Wang
- Department of Chemistry, University of Guelph, Guelph, ON N1G 2W1, Canada; (S.J.); (A.A.); (A.F.); (J.L.H.); (C.J.M.); (A.N.); (A.W.); (J.-W.W.)
- IQVIA, QuintilesIMS, Clinical Research, 10188 Telesis Ct #400, San Diego, CA 92121, USA
| | - France-Isabelle Auzanneau
- Department of Chemistry, University of Guelph, Guelph, ON N1G 2W1, Canada; (S.J.); (A.A.); (A.F.); (J.L.H.); (C.J.M.); (A.N.); (A.W.); (J.-W.W.)
- Correspondence:
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Hendel JL, Wang JW, Jackson TA, Hardmeier K, De Los Santos R, Auzanneau FI. How the Substituent at O-3 of N-Acetylglucosamine Impacts Glycosylation at O-4: A Comparative Study. J Org Chem 2009; 74:8321-31. [DOI: 10.1021/jo901616p] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jenifer L. Hendel
- Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1 Canada
| | - Jo-Wen Wang
- Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1 Canada
| | - Trudy A. Jackson
- Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1 Canada
| | - Karolyn Hardmeier
- Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1 Canada
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Cheng A, Hendel JL, Colangelo K, Bonin M, Auzanneau FI. Convenient Temporary Methyl Imidate Protection of N-Acetylglucosamine and Glycosylation at O-4. J Org Chem 2008; 73:7574-9. [DOI: 10.1021/jo801117y] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Anderson Cheng
- Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - Jenifer L. Hendel
- Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - Kimberley Colangelo
- Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - Michael Bonin
- Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
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