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Schmalz S, Mayr V, Shosherova A, Gepp B, Ackerbauer D, Sturm G, Bohle B, Breiteneder H, Radauer C. Isotype-specific binding patterns of serum antibodies to multiple conformational epitopes of Bet v 1. J Allergy Clin Immunol 2021; 149:1786-1794.e12. [PMID: 34740603 DOI: 10.1016/j.jaci.2021.10.026] [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: 03/12/2021] [Revised: 09/27/2021] [Accepted: 10/08/2021] [Indexed: 12/26/2022]
Abstract
BACKGROUND Birch pollen is an important elicitor of respiratory allergy. The major allergen, Bet v 1, binds IgE exclusively via conformational epitopes. OBJECTIVE To identify Bet v 1-specific epitope repertoires of IgE and IgG from birch pollen-allergic and non-allergic subjects. METHODS Chimeric proteins were created by grafting individual epitope-sized, contiguous surface patches of Bet v 1 onto a non-allergenic structural homologue and expressed in Escherichia coli. Binding of IgE, IgG1 and IgG4 from sera of 30 birch pollen-allergic and 11 non-allergic subjects to Bet v 1, 13 chimeric proteins and four bacterial Bet v 1 homologues were measured by ELISA. The proportion of epitope-specific in total Bet v 1-specific IgE and the cross-reactivity of Bet v 1-specific IgE with bacterial homologues were determined by competitive ELISA. RESULTS Thirteen soluble, correctly folded chimeric proteins were produced. IgE from 27/30 birch pollen-allergic patients bound to 1-12 chimeric proteins (median 4.0) with patient-specific patterns. Three chimeras binding IgE from the majority of sera were identified, whose pgrafted patches overlapped with previously published epitopes. Patterns of IgG1 and IgG4 binding to the chimeric proteins did not correspond to the binding patterns of IgE. Sera of 19/30 birch pollen-allergic patients contained low amounts of IgE to bacterial homologues. Bacterial proteins were able to partially inhibit IgE binding to Bet v 1. CONCLUSION Epitopes recognized by Bet v 1-specific antibodies from birch pollen-allergic patients are specific to each patient and differ between IgE, IgG1 and IgG4.
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Affiliation(s)
- Stefanie Schmalz
- Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Vanessa Mayr
- Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Alexandra Shosherova
- Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Barbara Gepp
- Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria; Department Life Science Engineering, University of Applied Sciences Technikum Wien, Vienna Austria
| | - Daniela Ackerbauer
- Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Gunter Sturm
- Allergy Outpatient Clinic Reumannplatz, Vienna, Austria; Department of Dermatology, Medical University of Graz, Graz, Austria
| | - Barbara Bohle
- Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Heimo Breiteneder
- Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Christian Radauer
- Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria.
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2
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Jacquet A. Perspectives in Allergen-Specific Immunotherapy: Molecular Evolution of Peptide- and Protein-Based Strategies. Curr Protein Pept Sci 2020; 21:203-223. [PMID: 31416410 DOI: 10.2174/1389203720666190718152534] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 05/30/2019] [Accepted: 06/20/2019] [Indexed: 12/13/2022]
Abstract
Allergen-specific Immunotherapy (AIT), through repetitive subcutaneous or sublingual administrations of allergen extracts, represents up to now the unique treatment against allergic sensitizations. However, the clinical efficacy of AIT can be largely dependent on the quality of natural allergen extracts. Moreover, the long duration and adverse side effects associated with AIT negatively impact patient adherence. Tremendous progress in the field of molecular allergology has made possible the design of safer, shorter and more effective new immunotherapeutic approaches based on purified and characterized natural or recombinant allergen derivatives and peptides. This review will summarize the characteristics of these different innovative vaccines including their effects in preclinical studies and clinical trials.
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Affiliation(s)
- Alain Jacquet
- Center of Excellence in Vaccine Research and Development, Faculty of Medicine, Chulalongkorn University, Bangkok, 10330, Thailand
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3
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Robledo-Retana T, Mani BM, Teran LM. Ligustrum pollen: New insights into allergic disease. World Allergy Organ J 2020; 13:100104. [PMID: 32055279 PMCID: PMC7005548 DOI: 10.1016/j.waojou.2020.100104] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 11/28/2019] [Accepted: 01/15/2020] [Indexed: 11/29/2022] Open
Abstract
Respiratory allergies are important medical conditions because they affect nearly 20% of the population worldwide, with higher prevalence in industrialized cities. Aeroallergens such as pollen are responsible for up to 40% of respiratory allergies. The pollen from Ligustrum (privet hedge) is a great source of inhalant allergens associated with allergic respiratory diseases around the world. However, it has been underestimated as a sensitization factor. Interestingly, over the last few years a number of novel allergens have been identified from Ligustrum using immunoproteomics technologies. Cross-linking of IgE and Ligustrum allergens could lead to the rapid release of inflammatory mediators by mast cells and basophils. These will promote a late response characterized by activation of T cells and overproduction of Th2 cytokines such as IL-4, IL-5, IL-9, and IL-13. These inflammatory changes cause respiratory diseases like asthma and allergic rhinitis in sensitized subjects. Here, we review Ligustrum pollen allergens and focus on their clinical and immunological significance in allergic disease as well as the use of hypoallergenic derivatives in personalized therapy.
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Affiliation(s)
- Tania Robledo-Retana
- Biochemistry Department, Queen Mary University of London, Mile End Rd, London, E1 4NS, UK
| | - Blessy M Mani
- Instituto Nacional de Enfermedades Respiratorias, Calzada de Tlalpan 4502, C.P. 14080, Mexico City, Mexico
| | - Luis M Teran
- Instituto Nacional de Enfermedades Respiratorias, Calzada de Tlalpan 4502, C.P. 14080, Mexico City, Mexico
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4
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Ole e 15 and its human counterpart -PPIA- chimeras reveal an heterogeneous IgE response in olive pollen allergic patients. Sci Rep 2019; 9:15027. [PMID: 31636292 PMCID: PMC6803672 DOI: 10.1038/s41598-019-51005-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Accepted: 09/16/2019] [Indexed: 12/27/2022] Open
Abstract
Olive pollen is a major cause of immunoglobulin E (IgE)-mediated allergy in Mediterranean countries. It is expected to become a worldwide leading allergenic source because olive cultivation is increasing in many countries. Ole e 15 belongs to the cyclophilin pan-allergen family, which includes highly cross-reactive allergens from non-related plant, animal and mold species. Here, the amino acid differences between Ole e 15 and its weak cross-reactive human homolog PPIA were grafted onto Ole e 15 to assess the contribution of specific surface areas to the IgE-binding. Eight Ole e 15-PPIA chimeras were produced in E. coli, purified and tested with 20 sera from Ole e 15-sensitized patients with olive pollen allergy by ELISA experiments. The contribution of linear epitopes was analyzed using twelve overlapping peptides spanning the entire Ole e 15 sequence. All the patients displayed a diverse reduction of the IgE-reactivity to the chimeras, revealing a highly polyclonal and patient-specific response to Ole e 15. IgE-epitopes are distributed across the entire Ole e 15 surface. Two main surface areas containing relevant conformational epitopes have been characterized. This is the first study to identify important IgE-binding regions on the surface of an allergenic cyclophilin.
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Stemeseder T, Freier R, Wildner S, Fuchs JE, Briza P, Lang R, Batanero E, Lidholm J, Liedl KR, Campo P, Hawranek T, Villalba M, Brandstetter H, Ferreira F, Gadermaier G. Crystal structure of Pla l 1 reveals both structural similarity and allergenic divergence within the Ole e 1-like protein family. J Allergy Clin Immunol 2016; 140:277-280. [PMID: 27965108 DOI: 10.1016/j.jaci.2016.10.035] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Revised: 09/16/2016] [Accepted: 10/05/2016] [Indexed: 10/20/2022]
Affiliation(s)
- Teresa Stemeseder
- Department of Molecular Biology, University of Salzburg, Salzburg, Austria
| | - Regina Freier
- Department of Molecular Biology, University of Salzburg, Salzburg, Austria
| | - Sabrina Wildner
- Christian Doppler Laboratory for Biosimilar Characterization, University of Salzburg, Salzburg, Austria
| | - Julian E Fuchs
- Institute of General, Inorganic, and Theoretical Chemistry, Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innsbruck, Austria
| | - Peter Briza
- Department of Molecular Biology, University of Salzburg, Salzburg, Austria
| | - Roland Lang
- Paracelsus Medical University Salzburg, Department of Dermatology, Salzburg, Austria
| | - Eva Batanero
- Departamento Bioquímica y Biología Molecular I, Universidad Complutense, Madrid, Spain
| | | | - Klaus R Liedl
- Institute of General, Inorganic, and Theoretical Chemistry, Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innsbruck, Austria
| | - Paloma Campo
- Allergy Unit, Instituto de Investigación Biomédica de Málaga, Regional University Hospital of Malaga, Malaga, Spain
| | - Thomas Hawranek
- Paracelsus Medical University Salzburg, Department of Dermatology, Salzburg, Austria
| | - Mayte Villalba
- Departamento Bioquímica y Biología Molecular I, Universidad Complutense, Madrid, Spain
| | - Hans Brandstetter
- Department of Molecular Biology, University of Salzburg, Salzburg, Austria; Christian Doppler Laboratory for Biosimilar Characterization, University of Salzburg, Salzburg, Austria
| | - Fatima Ferreira
- Department of Molecular Biology, University of Salzburg, Salzburg, Austria
| | - Gabriele Gadermaier
- Department of Molecular Biology, University of Salzburg, Salzburg, Austria; Christian Doppler Laboratory for Biosimilar Characterization, University of Salzburg, Salzburg, Austria.
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6
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Mas S, Boissy P, Monsalve RI, Cuesta-Herranz J, Díaz-Perales A, Fernández J, Colás C, Rodríguez R, Barderas R, Villalba M. A Recombinant Sal k 1 Isoform as an Alternative to the Polymorphic Allergen from Salsola kali Pollen for Allergy Diagnosis. Int Arch Allergy Immunol 2015. [DOI: 10.1159/000434680] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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7
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Gadermaier G, Eichhorn S, Vejvar E, Weilnböck L, Lang R, Briza P, Huber CG, Ferreira F, Hawranek T. Plantago lanceolata: An important trigger of summer pollinosis with limited IgE cross-reactivity. J Allergy Clin Immunol 2014; 134:472-5. [DOI: 10.1016/j.jaci.2014.02.016] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Revised: 01/23/2014] [Accepted: 02/04/2014] [Indexed: 11/30/2022]
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Castro L, Mas S, Barderas R, Colás C, García-Sellés J, Barber D, Rodríguez R, Villalba M. Sal k 5, a Member of the Widespread Ole e 1-Like Protein Family, Is a New Allergen of Russian Thistle (Salsola kali) Pollen. Int Arch Allergy Immunol 2013; 163:142-53. [DOI: 10.1159/000356345] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2013] [Accepted: 10/09/2013] [Indexed: 11/19/2022] Open
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Weinacker D, Rabert C, Zepeda AB, Figueroa CA, Pessoa A, Farías JG. Applications of recombinant Pichia pastoris in the healthcare industry. Braz J Microbiol 2013; 44:1043-8. [PMID: 24688491 PMCID: PMC3958167 DOI: 10.1590/s1517-83822013000400004] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2012] [Accepted: 04/04/2013] [Indexed: 12/16/2022] Open
Abstract
Since the 1970s, the establishment and development of the biotech industry has improved exponentially, allowing the commercial production of biopharmaceutical proteins. Nowadays, new recombinant protein production is considered a multibillion-dollar market, in which about 25% of commercial pharmaceuticals are biopharmaceuticals. But to achieve a competitive production process is not an easy task. Any production process has to be highly productive, efficient and economic. Despite that the perfect host is still not discovered, several research groups have chosen Pichia pastoris as expression system for the production of their protein because of its many features. The attempt of this review is to embrace several research lines that have adopted Pichia pastoris as their expression system to produce a protein on an industrial scale in the health care industry.
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Affiliation(s)
- Daniel Weinacker
- Departamento de Ingeniería Química, Facultad de Ingeniería, Ciencias y Administración, Universidad de La Frontera, Temuco, Chile
| | - Claudia Rabert
- Departamento de Producción Agropecuaria, Facultad de Ciencias Agropecuarias y Forestales, Universidad de La Frontera, Temuco, Chile
| | - Andrea B. Zepeda
- Departamento de Ingeniería Química, Facultad de Ingeniería, Ciencias y Administración, Universidad de La Frontera, Temuco, Chile
| | - Carolina A. Figueroa
- Departamento de Ingeniería Química, Facultad de Ingeniería, Ciencias y Administración, Universidad de La Frontera, Temuco, Chile
| | - Adalberto Pessoa
- Departamento de Tecnologia Bioquímico-Farmacêutica, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Jorge G. Farías
- Departamento de Ingeniería Química, Facultad de Ingeniería, Ciencias y Administración, Universidad de La Frontera, Temuco, Chile
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10
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Villalba M, Rodríguez R, Batanero E. The spectrum of olive pollen allergens. From structures to diagnosis and treatment. Methods 2013; 66:44-54. [PMID: 23920474 DOI: 10.1016/j.ymeth.2013.07.038] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2012] [Revised: 07/05/2013] [Accepted: 07/15/2013] [Indexed: 12/22/2022] Open
Abstract
Olive tree is one of the main allergy sources in Mediterranean countries. The identification of the allergenic repertoire from olive pollen has been essential for the development of rational strategies of standardization, diagnosis, and immunotherapy, all of them focused to increase the life quality of the patients. From its complex allergogram, twelve allergens - Ole e 1 to Ole e 12 - have been identified and characterized to date. Most of them have been cloned and produced as recombinant forms, whose availability have allowed analyzing their three-dimensional structures, mapping their T-cell and B-cell epitopes, and determining the precise allergenic profile of patients for a subsequent patient-tailored immunotherapy. Protein mutant, hypoallergenic derivatives, or recombinant fragments have been also useful experimental tools to analyze the immune recognition of allergens. To test these molecules before using them for clinic purposes, a mouse model of allergic sensitizations has been used. This model has been helpful for assaying different prophylactic approaches based on tolerance induction by intranasal administration of allergens or hypoallergens, used as free or integrated in different delivery systems, and their findings suggest a promising utilization as nasal vaccines. Exosomes - nanovesicles isolated from bronchoalveolar lavage fluid of tolerogenic mice - have shown immunomodulatory properties, being able to protect mice against sensitization to Ole e 1.
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Affiliation(s)
- Mayte Villalba
- Dpto. Bioquímica y Biología Molecular I, Facultad de C. Químicas, UCM, Madrid, Spain.
| | - Rosalía Rodríguez
- Dpto. Bioquímica y Biología Molecular I, Facultad de C. Químicas, UCM, Madrid, Spain
| | - Eva Batanero
- Dpto. Bioquímica y Biología Molecular I, Facultad de C. Químicas, UCM, Madrid, Spain
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11
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Power TD, Ivanciuc O, Schein CH, Braun W. Assessment of 3D models for allergen research. Proteins 2013; 81:545-54. [PMID: 23239464 DOI: 10.1002/prot.24239] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2012] [Revised: 11/16/2012] [Accepted: 12/07/2012] [Indexed: 12/27/2022]
Abstract
Allergenic proteins must crosslink specific IgE molecules, bound to the surface of mast cells and basophils, to stimulate an immune response. A structural understanding of the allergen-IgE interface is needed to predict cross-reactivities between allergens and to design hypoallergenic proteins. However, there are less than 90 experimentally determined structures available for the approximately 1500 sequences of allergens and isoallergens cataloged in the Structural Database of Allergenic Proteins. To provide reliable structural data for the remaining proteins, we previously produced more than 500 3D models using an automated procedure, with strict controls on template choice and model quality evaluation. Here, we assessed how well the fold and residue surface exposure of 10 of these models correlated with recently published experimental 3D structures determined by X-ray crystallography or NMR. We also discuss the impact of intrinsically disordered regions on the structural comparison and epitope prediction. Overall, for seven allergens with sequence identities to the original templates higher than 27%, the backbone root-mean square deviations were less than 2 Å between the models and the subsequently determined experimental structures for the ordered regions. Further, the surface exposure of the known IgE epitopes on the models of three major allergens, from peanut (Ara h 1), latex (Hev b 2), and soy (Gly m 4), was very similar to the experimentally determined structures. For the three remaining allergens with lower sequence identities to the modeling templates, the 3D folds were correctly identified. However, the accuracy of those models is not sufficient for a reliable epitope mapping.
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Affiliation(s)
- Trevor D Power
- Sealy Center for Structural Biology and Molecular Biophysics, University of Texas Medical Branch, Galveston, Texas 77555-0857, USA
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12
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Tuckova L, Sanchez D, Tlaskalova-Hogenova H, Panzner P. Wheat-dependent exercise-induced anaphylaxis: Pros and cons of recombinant ω-5gliadin and glutenins, or their epitope peptides, in diagnosis. Clin Exp Allergy 2012; 42:1146-9. [DOI: 10.1111/j.1365-2222.2012.04050.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- L. Tuckova
- Department of Immunology and Gnotobiology; Institute of Microbiology, v.v.i; Academy of Sciences of the Czech Republic
| | - D. Sanchez
- Department of Immunology and Gnotobiology; Institute of Microbiology, v.v.i; Academy of Sciences of the Czech Republic
| | - H. Tlaskalova-Hogenova
- Department of Immunology and Gnotobiology; Institute of Microbiology, v.v.i; Academy of Sciences of the Czech Republic
| | - P. Panzner
- Department of Immunology and Allergology; Medical Faculty in Pilsen; Charles University; Czech Republic
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