1
|
Macías-León J, Bermejo IA, Asín A, García-García A, Compañón I, Jiménez-Moreno E, Coelho H, Mangini V, Albuquerque IS, Marcelo F, Asensio JL, Bernardes GJL, Joshi HJ, Fiammengo R, Blixt O, Hurtado-Guerrero R, Corzana F. Structural characterization of an unprecedented lectin-like antitumoral anti-MUC1 antibody. Chem Commun (Camb) 2021; 56:15137-15140. [PMID: 33211039 DOI: 10.1039/d0cc06349e] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The molecular basis of antibody 5E5, which recognizes the entire GalNAc unit as a primary epitope is disclosed. The antibody's contacts with the peptide are mostly limited to two residues, allowing it to show some degree of promiscuity. These findings open the door to the chemical design of peptide-mimetics for developing efficient anti-cancer vaccines and diagnostic tools.
Collapse
Affiliation(s)
- Javier Macías-León
- Institute of Biocomputation and Physics of Complex Systems (BIFI), University of Zaragoza, Mariano Esquillor s/n, Campus Rio Ebro, Edificio I+D, Zaragoza, Spain.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
2
|
Pedersen JW, Nøstdal A, Wandall HH. Multiplexed Detection of Autoantibodies to Glycopeptides Using Microarray. Methods Mol Biol 2020; 2024:199-211. [PMID: 31364051 DOI: 10.1007/978-1-4939-9597-4_12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
Protein microarray is a highly sensitive tool for antibody detection in serum. Monitoring of patients' antibody titers to specific antigens is increasingly employed in the diagnosis of several conditions, ranging from infectious diseases, allergies, autoimmune diseases, and cancer. In this protocol, we present a detailed method for enzymatic generation of disease-specific O-glycopeptides and how to monitor the antibody response to these in serum using microarray technology.
Collapse
Affiliation(s)
- Johannes W Pedersen
- Department of Cellular and Molecular Medicine, Copenhagen Center for Glycomics, University of Copenhagen, Copenhagen, Denmark
| | - Alexander Nøstdal
- Department of Cellular and Molecular Medicine, Copenhagen Center for Glycomics, University of Copenhagen, Copenhagen, Denmark
| | - Hans H Wandall
- Department of Cellular and Molecular Medicine, Copenhagen Center for Glycomics, University of Copenhagen, Copenhagen, Denmark.
| |
Collapse
|
3
|
Fritzen A, Risinger C, Korukluoglu G, Christova I, Corli Hitzeroth A, Viljoen N, Burt FJ, Mirazimi A, Blixt O. Epitope-mapping of the glycoprotein from Crimean-Congo hemorrhagic fever virus using a microarray approach. PLoS Negl Trop Dis 2018; 12:e0006598. [PMID: 29985929 PMCID: PMC6053253 DOI: 10.1371/journal.pntd.0006598] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 07/19/2018] [Accepted: 06/08/2018] [Indexed: 12/19/2022] Open
Abstract
Crimean-Congo hemorrhagic fever virus (CCHFV) causes severe acute human disease with lethal outcome. The knowledge about the immune response for this human health threat is highly limited. In this study, we have screened the glycoprotein of CCHFV for novel linear B-cell epitopic regions using a microarray approach. The peptide library consisted of 168 synthesized 20mer peptides with 10 amino acid overlap covering the entire glycoprotein. Using both pooled and individual human sera from survivors of CCHF disease in Turkey five peptide epitopes situated in the mucin-like region and GP 38 (G15-515) and GN G516-1037 region of the glycoprotein were identified as epitopes for a CCHF immune response. An epitope walk of the five peptides revealed a peptide sequence located in the GN region with high specificity and sensitivity. This peptide sequence, and a sequence downstream, reacted also against sera from survivors of CCHF disease in South Africa. The cross reactivity of these peptides with samples from a geographically distinct region where genetically diverse strains of the virus circulate, enabled the identification of unique peptide epitopes from the CCHF glycoprotein that could have application in development of diagnostic tools. In this study clinical samples from geographically distinct regions were used to identify conserved linear epitopic regions of the glycoprotein of CCHF. Crimean-Congo hemorrhagic fever (CCHF) is a widespread disease caused by a tick-borne virus belonging to the genus Orthonairovirus of the Nairoviridae family. The virus is responsible for outbreaks of severe viral hemorrhagic fever with a case fatality rate of approximately 30%. The CCHF virus is transmitted to people either by tick bites or through contact with infected animal blood or tissues. A mouse brain-derived vaccine against CCHF has been developed (included in this study) and used on a small scale in eastern Europe. There is no safe and effective vaccine widely available for human use. Currently, there are a limited number of serological assays commercially available for testing for CCHFV specific IgG and IgM. There are enzyme linked immunosorbent assays (ELISA) and imunnofluorescent assays (IFA) designed for screening human samples for diagnostic purposes however they are not cost effective for surveillance studies. The limiting factor for the replication of these protocols in other laboratories is the availability of antigens and (where relevant) specified monoclonal antibodies. To contribute to the improvement of the diagnostic methods for CCHFV, we aimed to identify and characterize new synthetic antigens that were more sensitive and specific and could be applied in epidemiologic surveys.
Collapse
Affiliation(s)
- Amanda Fritzen
- Department of Chemistry, University of Copenhagen, Frederiksberg, Denmark
| | - Christian Risinger
- Department of Chemistry, University of Copenhagen, Frederiksberg, Denmark
| | | | - Iva Christova
- National Center of Infectious and Parasitic Diseases, Sofia, Bulgaria
| | - Arina Corli Hitzeroth
- Division of Virology, Faculty of Health Sciences, University of the Free State, Bloemfontein, Republic of South Africa
| | - Natalie Viljoen
- Division of Virology, Faculty of Health Sciences, University of the Free State, Bloemfontein, Republic of South Africa
| | - Felicity Jane Burt
- Division of Virology, Faculty of Health Sciences, University of the Free State, Bloemfontein, Republic of South Africa
- Division of Virology, NHLS Universitas, Bloemfontein, Republic of South Africa
| | - Ali Mirazimi
- Folkhälsomyndigheten, Solna, Stockholm, Sweden
- Department for Laboratory Medicine, Karolinska Institute and Karolinska Hospital University, Solna, Sweden
- National Veterinary Institute, Uppsala, Sweden
- * E-mail: (AM); (OB)
| | - Ola Blixt
- Department of Chemistry, University of Copenhagen, Frederiksberg, Denmark
- Department for Laboratory Medicine, Karolinska Institute and Karolinska Hospital University, Solna, Sweden
- * E-mail: (AM); (OB)
| |
Collapse
|
4
|
Lasswitz L, Chandra N, Arnberg N, Gerold G. Glycomics and Proteomics Approaches to Investigate Early Adenovirus-Host Cell Interactions. J Mol Biol 2018; 430:1863-1882. [PMID: 29746851 PMCID: PMC7094377 DOI: 10.1016/j.jmb.2018.04.039] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Revised: 04/24/2018] [Accepted: 04/30/2018] [Indexed: 12/14/2022]
Abstract
Adenoviruses as most viruses rely on glycan and protein interactions to attach to and enter susceptible host cells. The Adenoviridae family comprises more than 80 human types and they differ in their attachment factor and receptor usage, which likely contributes to the diverse tropism of the different types. In the past years, methods to systematically identify glycan and protein interactions have advanced. In particular sensitivity, speed and coverage of mass spectrometric analyses allow for high-throughput identification of glycans and peptides separated by liquid chromatography. Also, developments in glycan microarray technologies have led to targeted, high-throughput screening and identification of glycan-based receptors. The mapping of cell surface interactions of the diverse adenovirus types has implications for cell, tissue, and species tropism as well as drug development. Here we review known adenovirus interactions with glycan- and protein-based receptors, as well as glycomics and proteomics strategies to identify yet elusive virus receptors and attachment factors. We finally discuss challenges, bottlenecks, and future research directions in the field of non-enveloped virus entry into host cells.
Collapse
Affiliation(s)
- Lisa Lasswitz
- Institute for Experimental Virology, TWINCORE, Centre for Experimental and Clinical Infection Research, a joint venture between the Medical School Hannover and the Helmholtz Centre for Infection Research, 30625 Hannover, Germany
| | - Naresh Chandra
- Department of Clinical Microbiology, Virology, Umeå University, SE-90185 Umeå, Sweden; Molecular Infection Medicine Sweden (MIMS), Umeå University, SE-90185 Umea, Sweden
| | - Niklas Arnberg
- Department of Clinical Microbiology, Virology, Umeå University, SE-90185 Umeå, Sweden; Molecular Infection Medicine Sweden (MIMS), Umeå University, SE-90185 Umea, Sweden.
| | - Gisa Gerold
- Institute for Experimental Virology, TWINCORE, Centre for Experimental and Clinical Infection Research, a joint venture between the Medical School Hannover and the Helmholtz Centre for Infection Research, 30625 Hannover, Germany; Department of Clinical Microbiology, Virology, Umeå University, SE-90185 Umeå, Sweden; Wallenberg Centre for Molecular Medicine (WCMM), Umeå University, SE-90185 Umea, Sweden.
| |
Collapse
|
5
|
Wendel U, Persson N, Risinger C, Bengtsson E, Nodin B, Danielsson L, Welinder C, Nordin Fredrikson G, Jansson B, Blixt O. A novel monoclonal antibody targeting carboxymethyllysine, an advanced glycation end product in atherosclerosis and pancreatic cancer. PLoS One 2018; 13:e0191872. [PMID: 29420566 PMCID: PMC5805250 DOI: 10.1371/journal.pone.0191872] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Accepted: 01/13/2018] [Indexed: 12/12/2022] Open
Abstract
Advanced glycation end products are formed by non-enzymatic reactions between proteins and carbohydrates, causing irreversible lysine and arginine alterations that severely affect protein structure and function. The resulting modifications induce inflammation by binding to scavenger receptors. An increase in advanced glycation end products is observed in a number of diseases e.g. atherosclerosis and cancer. Since advanced glycation end products also are present in healthy individuals, their detection and quantification are of great importance for usage as potential biomarkers. Current methods for advanced glycation end product detection are though limited and solely measure total glycation. This study describes a new epitope-mapped single chain variable fragment, D1-B2, against carboxymethyllysine, produced from a phage library that was constructed from mouse immunizations. The phage library was selected against advanced glycation end product targets using a phage display platform. Characterization of its binding pattern was performed using large synthetic glycated peptide and protein libraries displayed on microarray slides. D1-B2 showed a preference for an aspartic acid, three positions N-terminally from a carboxymethyllysine residue and also bound to a broad collection of glycated proteins. Positive immunohistochemical staining of mouse atherosclerotic plaques and of a tissue microarray of human pancreatic tumors confirmed the usability of the new scFv for advanced glycation end product detection in tissues. This study demonstrates a promising methodology for high-throughput generation of epitope-mapped monoclonal antibodies against AGE.
Collapse
Affiliation(s)
- Ulrika Wendel
- Chemical Glyco-Biology Laboratory, Department of Chemistry, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - Nina Persson
- Chemical Glyco-Biology Laboratory, Department of Chemistry, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - Christian Risinger
- Chemical Glyco-Biology Laboratory, Department of Chemistry, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - Eva Bengtsson
- Department of Clinical Sciences Malmö, Scania University Hospital, Malmö Lund University, Malmö, Sweden
| | - Björn Nodin
- Division of Oncology and Pathology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
| | - Lena Danielsson
- Clinical Chemistry and Pharmacology, Department of Laboratory Medicine, Lund University, Lund, Sweden
| | - Charlotte Welinder
- Division of Oncology and Pathology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
- Centre of Excellence in Biological and Medical Mass Spectrometry “CEBMMS”, Biomedical Centre D13, Lund University, Lund, Sweden
| | - Gunilla Nordin Fredrikson
- Department of Clinical Sciences Malmö, Scania University Hospital, Malmö Lund University, Malmö, Sweden
| | - Bo Jansson
- Division of Oncology and Pathology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
| | - Ola Blixt
- Chemical Glyco-Biology Laboratory, Department of Chemistry, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
- * E-mail:
| |
Collapse
|
6
|
Persson N, Jansson B, Stuhr-Hansen N, Kovács A, Welinder C, Danielsson L, Blixt O. A Combinatory Antibody-Antigen Microarray Assay for High-Content Screening of Single-Chain Fragment Variable Clones from Recombinant Libraries. PLoS One 2016; 11:e0168761. [PMID: 28002485 PMCID: PMC5176327 DOI: 10.1371/journal.pone.0168761] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Accepted: 12/06/2016] [Indexed: 12/30/2022] Open
Abstract
We have developed a combinatory antibody–antigen microarray for direct screening of multiple single-chain fragment variable (scFv) clones with no need for pre-purification or enrichment before screening. The straightforward workflow allows for early selection of binders to predefined peptide and glycopeptide targets. A capture antibody is contact printed on microarray slides, side by side with the antigens of interest. A large number of scFv clones, in supernatants, are printed on top of the capture antibody and the antigen in a “spot-on-spot” print. The printed scFv clones, which bind to the capture antibody, are detected using biotinylated antigen, while the binding of scFv clones to the printed antigen is detected through a mouse anti-tag antibody. Two different analyses are thus performed on the same slide, generating two kinds of information: one on the ability of an individual scFv clone to bind to the soluble form of the antigen, which may favour selection for higher affinity rather than avidity, while the other allows the identification of large numbers of clones, simultaneously, due to the binding of scFv clones to densely presented antigens, thus providing an overall increased hit rate. The functionality of the new screening approach was illustrated through the generation of antibodies against peptides from the chaperone complex Ku70/Ku80 and the GalNAcα-serine/threonine epitope on the IgA1 alpha chain hinge region. In total, 659 scFv clones were screened with a hit rate of approximately 20%. This approach allowed the identification of functional antibodies in both cases, illustrating the usefulness and capacity of this combinatory microarray screening technique for efficient analysis and validation of antibodies at an early stage of antibody generation.
Collapse
Affiliation(s)
- Nina Persson
- Chemical Glyco-Biology Laboratory, Department of Chemistry, Copenhagen University, Copenhagen, Denmark
| | - Bo Jansson
- Division of Oncology and Pathology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
| | - Nicolai Stuhr-Hansen
- Chemical Glyco-Biology Laboratory, Department of Chemistry, Copenhagen University, Copenhagen, Denmark
| | - András Kovács
- Chemical Glyco-Biology Laboratory, Department of Chemistry, Copenhagen University, Copenhagen, Denmark
- Division of Clinical Chemistry and Pharmacology, Department of Laboratory Medicine, Lund University, Lund, Sweden
| | - Charlotte Welinder
- Division of Oncology and Pathology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
- Centre of Excellence in Biological and Medical Mass Spectrometry (CEBMMS), Biomedical Centre D13, Lund University, Lund, Sweden
| | - Lena Danielsson
- Division of Clinical Chemistry and Pharmacology, Department of Laboratory Medicine, Lund University, Lund, Sweden
| | - Ola Blixt
- Chemical Glyco-Biology Laboratory, Department of Chemistry, Copenhagen University, Copenhagen, Denmark
- * E-mail:
| |
Collapse
|
7
|
Marcos-Silva L, Ricardo S, Chen K, Blixt O, Arigi E, Pereira D, Høgdall E, Mandel U, Bennett EP, Vakhrushev SY, David L, Clausen H. A novel monoclonal antibody to a defined peptide epitope in MUC16. Glycobiology 2015. [PMID: 26201951 DOI: 10.1093/glycob/cwv056] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
The MUC16 mucin is overexpressed and aberrantly glycosylated in ovarian carcinomas. Immunodetection of circulating MUC16 is one of the most used cancer biomarker assays, but existing antibodies to MUC16 fail to distinguish normal and aberrant cancer glycoforms. Although all antibodies react with the tandem-repeat region, their epitopes appear to be conformational dependent and not definable by a short peptide. Aberrant glycoforms of MUC16 may constitute promising targets for diagnostic and immunotherapeutic intervention, and it is important to develop well-defined immunogens for induction of potent MUC16 immunity. Here, we developed a MUC16 vaccine based on a 1.7TR (264 aa) expressed in Escherichia coli and in vitro enzymatically glycosylated to generate the aberrant cancer-associated glycoform Tn. This vaccine elicited a potent serum IgG response in mice and we identified two major immunodominant linear peptide epitopes within the tandem repeat. We developed one monoclonal antibody, 5E11, reactive with a minimum epitope with the sequence FNTTER. This sequence contains potential N- and O-glycosylation sites and, interestingly, glycosylation blocked binding of 5E11. In immunochemistry of ovarian benign and cancer lesions, 5E11 showed similar reactivity as traditional MUC16 antibodies, suggesting that the epitope is not efficiently glycosylated. The study provides a vaccine design and immunodominant MUC16 TR epitopes.
Collapse
Affiliation(s)
- Lara Marcos-Silva
- Copenhagen Center for Glycomics, Department of Cellular and Molecular Medicine and School of Dentistry, Faculty of Health Sciences, University of Copenhagen, Blegdamsvej 3, DK-2200 Copenhagen N, Denmark Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal IPATIMUP, Institute of Molecular Pathology and Immunology, University of Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal Faculty of Medicine, University of Porto, Porto, Portugal
| | - Sara Ricardo
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal IPATIMUP, Institute of Molecular Pathology and Immunology, University of Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal
| | - Kowa Chen
- Copenhagen Center for Glycomics, Department of Cellular and Molecular Medicine and School of Dentistry, Faculty of Health Sciences, University of Copenhagen, Blegdamsvej 3, DK-2200 Copenhagen N, Denmark
| | - Ola Blixt
- Copenhagen Center for Glycomics, Department of Cellular and Molecular Medicine and School of Dentistry, Faculty of Health Sciences, University of Copenhagen, Blegdamsvej 3, DK-2200 Copenhagen N, Denmark
| | - Emma Arigi
- Copenhagen Center for Glycomics, Department of Cellular and Molecular Medicine and School of Dentistry, Faculty of Health Sciences, University of Copenhagen, Blegdamsvej 3, DK-2200 Copenhagen N, Denmark
| | - Daniela Pereira
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal IPATIMUP, Institute of Molecular Pathology and Immunology, University of Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal
| | - Estrid Høgdall
- Department of Pathology, Herlev Hospital, University of Copenhagen, Herlev, Denmark
| | - Ulla Mandel
- Copenhagen Center for Glycomics, Department of Cellular and Molecular Medicine and School of Dentistry, Faculty of Health Sciences, University of Copenhagen, Blegdamsvej 3, DK-2200 Copenhagen N, Denmark
| | - Eric P Bennett
- Copenhagen Center for Glycomics, Department of Cellular and Molecular Medicine and School of Dentistry, Faculty of Health Sciences, University of Copenhagen, Blegdamsvej 3, DK-2200 Copenhagen N, Denmark
| | - Sergey Y Vakhrushev
- Copenhagen Center for Glycomics, Department of Cellular and Molecular Medicine and School of Dentistry, Faculty of Health Sciences, University of Copenhagen, Blegdamsvej 3, DK-2200 Copenhagen N, Denmark
| | - Leonor David
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal IPATIMUP, Institute of Molecular Pathology and Immunology, University of Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal Faculty of Medicine, University of Porto, Porto, Portugal
| | - Henrik Clausen
- Copenhagen Center for Glycomics, Department of Cellular and Molecular Medicine and School of Dentistry, Faculty of Health Sciences, University of Copenhagen, Blegdamsvej 3, DK-2200 Copenhagen N, Denmark The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Hørsholm, Denmark
| |
Collapse
|
8
|
Etzold S, Juge N. Structural insights into bacterial recognition of intestinal mucins. Curr Opin Struct Biol 2014; 28:23-31. [PMID: 25106027 DOI: 10.1016/j.sbi.2014.07.002] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Revised: 07/09/2014] [Accepted: 07/16/2014] [Indexed: 01/06/2023]
Abstract
The mucosal layer covering our gut epithelium represents the first line of host defenses against the luminal content, while enabling contacts between the resident microbiota and the host. Mucus is mainly composed of mucins, large glycoproteins containing a protein core and a high number of O-linked oligosaccharides. Mucin glycans act as binding sites or carbon sources for the intestinal microbes, thereby functioning as a host-specific determinant affecting the microbiota composition and human health. Reflecting the structural diversity of mucin glycans and their prime location, commensal and pathogenic microbes have evolved a range of adhesins allowing their interaction with the host. However, despite the recognised importance of mucin glycans in modulating intestinal homeostasis, information on carbohydrate-binding proteins from gut bacteria is disparate. This review is focussed on recent structural insights into host-microbe interactions mediated by mucins.
Collapse
Affiliation(s)
- Sabrina Etzold
- Division of Neonatology and Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, School of Medicine, University of California San Diego, 9500 Gilman Drive, San Diego, CA 92093-0715, USA
| | - Nathalie Juge
- The Gut Health and Food Safety Institute Strategic Programme, Institute of Food Research, Norwich NR4 7UA, United Kingdom.
| |
Collapse
|