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D’Aiuto V, Mormile I, Granata F, Napolitano F, Lamagna L, Della Casa F, de Paulis A, Rossi FW. Worldwide Heterogeneity of Food Allergy: Focus on Peach Allergy in Southern Italy. J Clin Med 2024; 13:3259. [PMID: 38892968 PMCID: PMC11173152 DOI: 10.3390/jcm13113259] [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: 04/12/2024] [Revised: 05/25/2024] [Accepted: 05/30/2024] [Indexed: 06/21/2024] Open
Abstract
Food allergy (FA) has shown an increasing prevalence in the last decades, becoming a major public health problem. However, data on the prevalence of FA across the world are heterogeneous because they are influenced by several factors. Among IgE-mediated FA, an important role is played by FA related to plant-derived food which can result from the sensitization to a single protein (specific FA) or to homologous proteins present in different foods (cross-reactive FA) including non-specific lipid transfer proteins (nsLTPs), profilins, and pathogenesis-related class 10 (PR-10). In addition, the clinical presentation of FA is widely heterogeneous ranging from mild symptoms to severe reactions up to anaphylaxis, most frequently associated with nsLTP-related FA (LTP syndrome). Considering the potential life-threatening nature of nsLTP-related FA, the patient's geographical setting should always be taken into account; thereby, it is highly recommended to build a personalized approach for managing FA across the world in the precision medicine era. For this reason, in this review, we aim to provide an overview of the prevalence of nsLTP-mediated allergies in the Mediterranean area and to point out the potential reasons for the different geographical significance of LTP-driven allergies with a particular focus on the allergenic properties of food allergens and their cross reactivity.
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Affiliation(s)
- Valentina D’Aiuto
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (V.D.); (I.M.); (F.N.); (F.D.C.); (A.d.P.); (F.W.R.)
| | - Ilaria Mormile
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (V.D.); (I.M.); (F.N.); (F.D.C.); (A.d.P.); (F.W.R.)
| | - Francescopaolo Granata
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (V.D.); (I.M.); (F.N.); (F.D.C.); (A.d.P.); (F.W.R.)
| | - Filomena Napolitano
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (V.D.); (I.M.); (F.N.); (F.D.C.); (A.d.P.); (F.W.R.)
| | - Laura Lamagna
- Department of Clinical Medicine and Surgery, University of Naples Federico II, 80131 Naples, Italy;
| | - Francesca Della Casa
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (V.D.); (I.M.); (F.N.); (F.D.C.); (A.d.P.); (F.W.R.)
| | - Amato de Paulis
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (V.D.); (I.M.); (F.N.); (F.D.C.); (A.d.P.); (F.W.R.)
- Center for Basic and Clinical Immunology Research (CISI), WAO Center of Excellence, University of Naples Federico II, 80131 Naples, Italy
| | - Francesca Wanda Rossi
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (V.D.); (I.M.); (F.N.); (F.D.C.); (A.d.P.); (F.W.R.)
- Center for Basic and Clinical Immunology Research (CISI), WAO Center of Excellence, University of Naples Federico II, 80131 Naples, Italy
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Kazancioglu A, Konuralp I, Sahiner UM, Soyer O, Sekerel BE. Understanding of lipid transfer protein sensitization patterns and its clinical significance in children. Allergy Asthma Proc 2024; 45:120-127. [PMID: 38449011 DOI: 10.2500/aap.2024.45.230075] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
Background: Lipid transfer proteins (LTP) are the most common food allergens in the Mediterranean region. Objective: The study aimed to investigate co-sensitization patterns and cluster relationships between LTP allergen molecules across a broad range of allergen-specific sensitization patterns, and clinical outcomes in eastern Mediterranean children. Methods: Among 496 children evaluated for multiple sensitizations with multiplex testing, 105 children (21%) with 16 different LTP sensitizations were analyzed. Clinical reactivity was examined based on clear-cut history of immunoglobulin E mediated symptoms (oral allergy syndrome [OAS], systemic reactions, and anaphylaxis). Results: All children included were sensitive to food LTPs, but 56% were sensitive to pollen LTPs. The number of children with OAS and clinical reactivity was 12 and 59, respectively, and no cofactors were reported. The most common sensitizations were Pru p 3 (74%) and Cor a 8 (66%). Significant correlations were observed in the heatmap between the LTP molecules other than Par j 2 and Tri a 14. Overall, clinical reactivity was associated with increased age and number of LTP molecule positivity. Conclusion: In the eastern Mediterranean region, 21% of children with multiple food and/or pollen sensitizations were found to have LTP sensitization; however, almost half reported clinical reactivity. The hierarchical pathway highlights that distinct LTP allergen molecules can act as primary sensitizers. Clinical reactivity is linked to increasing numbers of LTP molecule positivity and increasing age.
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Affiliation(s)
- Alp Kazancioglu
- From the Department of Pediatric Allergy, Hacettepe University School of Medicine, Ankara, Turkey, and
| | - Ilteber Konuralp
- Department of Statistics, Middle East Technical University, Ankara, Turkey
| | - Umit Murat Sahiner
- From the Department of Pediatric Allergy, Hacettepe University School of Medicine, Ankara, Turkey, and
| | - Ozge Soyer
- From the Department of Pediatric Allergy, Hacettepe University School of Medicine, Ankara, Turkey, and
| | - Bulent Enis Sekerel
- From the Department of Pediatric Allergy, Hacettepe University School of Medicine, Ankara, Turkey, and
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Identification of allergen encoding sequences in a novel food ingredient from Moringa oleifera leaves. Food Chem 2023; 401:134185. [DOI: 10.1016/j.foodchem.2022.134185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 07/12/2022] [Accepted: 09/06/2022] [Indexed: 11/19/2022]
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Kronfel CM, Cheng H, McBride JK, Nesbit JB, Krouse R, Burns P, Cabanillas B, Crespo JF, Ryan R, Simon RJ, Maleki SJ, Hurlburt BK. IgE epitopes of Ara h 9, Jug r 3, and Pru p 3 in peanut-allergic individuals from Spain and the US. FRONTIERS IN ALLERGY 2023; 3:1090114. [PMID: 36698378 PMCID: PMC9869384 DOI: 10.3389/falgy.2022.1090114] [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: 11/04/2022] [Accepted: 12/16/2022] [Indexed: 01/11/2023] Open
Abstract
Non-specific lipid transfer proteins (LTPs) are well studied allergens that can lead to severe reactions, but often cause oral allergy syndrome in the Mediterranean area and other European countries. However, studies focused on LTP reactivity in allergic individuals from the United States are lacking because they are not considered major allergens. The goal of this study is to determine if differences in immunoglobulin (Ig) E binding patterns to the peanut allergen Ara h 9 and two homologous LTPs (walnut Jug r 3 and peach Pru p 3) between the US and Spain contribute to differences observed in allergic reactivity. Synthetic overlapping 15-amino acid-long peptides offset by five amino acids from Ara h 9, Jug r 3, and Pru p 3 were synthesized, and the intact proteins were attached to microarray slides. Sera from 55 peanut-allergic individuals from the US were tested for IgE binding to the linear peptides and IgE binding to intact proteins using immunofluorescence. For comparison, sera from 17 peanut-allergic individuals from Spain were also tested. Similar IgE binding profiles for Ara h 9, Jug r 3, and Pru p 3 were identified between the US and Spain, with slight differences. Certain regions of the proteins, specifically helices 1 and 2 and the C-terminal coil, were recognized by the majority of the sera more often than other regions of the proteins. While serum IgE from peanut-allergic individuals in the US binds to peptides of Ara h 9 and its homologs, only IgE from the Spanish subjects bound to the intact LTPs. This study identifies Ara h 9, Jug r 3, and Pru p 3 linear epitopes that were previously unidentified using sera from peanut-allergic individuals from the US and Spain. Certain regions of the LTPs are recognized more often in US subjects, indicating that they represent conserved and possible cross-reactive regions. The location of the epitopes in 3D structure models of the LTPs may predict the location of potential conformational epitopes bound by a majority of the Spanish patient sera. These findings are potentially important for development of peptide or protein-targeting diagnostic and therapeutic tools for food allergy.
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Affiliation(s)
- Christina M. Kronfel
- United States Department of Agriculture, Agriculture Research Service, Southern Regional Research Center, New Orleans, LA, United States
| | - Hsiaopo Cheng
- United States Department of Agriculture, Agriculture Research Service, Southern Regional Research Center, New Orleans, LA, United States
| | - Jane K. McBride
- United States Department of Agriculture, Agriculture Research Service, Southern Regional Research Center, New Orleans, LA, United States
| | - Jacqueline B. Nesbit
- United States Department of Agriculture, Agriculture Research Service, Southern Regional Research Center, New Orleans, LA, United States
| | | | - Preston Burns
- Rho Federal Systems Division, Durham, NC, United States
| | - Beatriz Cabanillas
- Department of Allergy, Research Institute Hospital 12 de Octubre, Madrid, Spain
| | - Jesus F. Crespo
- Department of Allergy, Research Institute Hospital 12 de Octubre, Madrid, Spain
| | - Robert Ryan
- Aimmune Therapeutics, a Nestlé Health Science Company, Brisbane, CA, United States
| | - Reyna J. Simon
- Aimmune Therapeutics, a Nestlé Health Science Company, Brisbane, CA, United States
| | - Soheila J. Maleki
- United States Department of Agriculture, Agriculture Research Service, Southern Regional Research Center, New Orleans, LA, United States,Correspondence: Soheila J. Maleki
| | - Barry K. Hurlburt
- United States Department of Agriculture, Agriculture Research Service, Southern Regional Research Center, New Orleans, LA, United States
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Missaoui K, Gonzalez-Klein Z, Jemli S, Garrido-Arandia M, Diaz-Perales A, Tome-Amat J, Brini F. Identification and molecular characterization of a novel non-specific lipid transfer protein (TdLTP2) from durum wheat. PLoS One 2022; 17:e0266971. [PMID: 35417502 PMCID: PMC9007336 DOI: 10.1371/journal.pone.0266971] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 03/30/2022] [Indexed: 01/15/2023] Open
Abstract
Non-specific lipid transfer proteins (nsLTPs) are small, cysteine-rich proteins, a part of the pathogenesis-related protein family, and numerous of them act as positive regulators during plant disease resistance, growth, and reproduction. These proteins are involved also in the intracellular transfer of lipids, as well as in plant immune responses. Besides their differences in sequences, they show similar features in their structure. However, they show distinct lipid-binding specificities signifying their various biological roles that dictate further structural study. This study reports the identification, in silico characterization and purification of a novel member of the nsLTP2 protein family from durum wheat, TdLTP2. It was generated and purified using the combination of gel filtration chromatography and reverse-phase high-performance liquid chromatography (RP-HPLC). Its identity was detected by sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) and mass spectrometry (MALDI-TOF). TdLTP2 had been expressed in different stress to detect its localization; therefore, fluor-immunolocalization studies accomplished this data. In this approach, to assess the allergenicity of TdLTP2, thirty patients with baker’s asthma were enrolled and ELISA to detect the presence of specific IgE antibodies tested their sera. Moreover, the lipid-binding properties of TdLTP2 were examined in vitro and validated using a molecular docking study. In summary, our results demonstrate a new addition of member in plant nsLTPs family, TdLTP2, which can develop a better understanding about its biological functions and shed light on future applications.
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Affiliation(s)
- Khawla Missaoui
- Biotechnology and Plant Improvement Laboratory, Centre of Biotechnology of Sfax, University of Sfax, Sfax, Tunisia
| | - Zulema Gonzalez-Klein
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid (UPM), Madrid, Spain
- Centro de Biotecnología y Genómica de Plantas (CBGP), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Universidad Politécnica de Madrid (UPM), Madrid, Spain
| | - Sonia Jemli
- Laboratory of Microbial Biotechnology and Enzymes Engineering, Centre of Biotechnology of Sfax, University of Sfax, Sfax, Tunisia
- Department of Biology, Faculty of Sciences of Sfax, University of Sfax, Sfax, Tunisia
| | - Maria Garrido-Arandia
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid (UPM), Madrid, Spain
- Centro de Biotecnología y Genómica de Plantas (CBGP), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Universidad Politécnica de Madrid (UPM), Madrid, Spain
| | - Araceli Diaz-Perales
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid (UPM), Madrid, Spain
- Centro de Biotecnología y Genómica de Plantas (CBGP), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Universidad Politécnica de Madrid (UPM), Madrid, Spain
| | - Jaime Tome-Amat
- Centro de Biotecnología y Genómica de Plantas (CBGP), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Universidad Politécnica de Madrid (UPM), Madrid, Spain
- * E-mail: (JTA); (FB)
| | - Faiçal Brini
- Biotechnology and Plant Improvement Laboratory, Centre of Biotechnology of Sfax, University of Sfax, Sfax, Tunisia
- * E-mail: (JTA); (FB)
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Missaoui K, Gonzalez-Klein Z, Pazos-Castro D, Hernandez-Ramirez G, Garrido-Arandia M, Brini F, Diaz-Perales A, Tome-Amat J. Plant non-specific lipid transfer proteins: An overview. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2022; 171:115-127. [PMID: 34992048 DOI: 10.1016/j.plaphy.2021.12.026] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 12/21/2021] [Accepted: 12/23/2021] [Indexed: 05/26/2023]
Abstract
Plant non-specific lipid transfer proteins (nsLTPs) are usually defined as small, basic proteins, with a wide distribution in all orders of higher plants. Structurally, nsLTPs contain a conserved motif of eight cysteines, linked by four disulphide bonds, and a hydrophobic cavity in which the ligand is housed. This structure confers stability and enhances the ability to bind and transport a variety of hydrophobic molecules. Their highly conserved structural resemblance but low sequence identity reflects the wide variety of ligands they can carry, as well as the broad biological functions to which they are linked to, such as membrane stabilization, cell wall organization and signal transduction. In addition, they have also been described as essential in resistance to biotic and abiotic stresses, plant growth and development, seed development, and germination. Hence, there is growing interest in this family of proteins for their critical roles in plant development and for the many unresolved questions that need to be clarified, regarding their subcellular localization, transfer capacity, expression profile, biological function, and evolution.
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Affiliation(s)
- Khawla Missaoui
- Laboratory of Biotechnology and Plant Improvement, Centre of Biotechnology of Sfax (CBS), University of Sfax, Tunisia
| | - Zulema Gonzalez-Klein
- Centro de Biotecnología y Genómica de Plantas (CBGP), Universidad Politécnica de Madrid (UPM), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Spain; Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid (UPM), Spain
| | - Diego Pazos-Castro
- Centro de Biotecnología y Genómica de Plantas (CBGP), Universidad Politécnica de Madrid (UPM), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Spain; Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid (UPM), Spain
| | - Guadalupe Hernandez-Ramirez
- Centro de Biotecnología y Genómica de Plantas (CBGP), Universidad Politécnica de Madrid (UPM), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Spain; Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid (UPM), Spain
| | - Maria Garrido-Arandia
- Centro de Biotecnología y Genómica de Plantas (CBGP), Universidad Politécnica de Madrid (UPM), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Spain; Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid (UPM), Spain
| | - Faical Brini
- Laboratory of Biotechnology and Plant Improvement, Centre of Biotechnology of Sfax (CBS), University of Sfax, Tunisia
| | - Araceli Diaz-Perales
- Centro de Biotecnología y Genómica de Plantas (CBGP), Universidad Politécnica de Madrid (UPM), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Spain; Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid (UPM), Spain
| | - Jaime Tome-Amat
- Centro de Biotecnología y Genómica de Plantas (CBGP), Universidad Politécnica de Madrid (UPM), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Spain.
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Asero R, Pravettoni V, Scala E, Villalta D. Lipid transfer protein allergy: A review of current controversies. Clin Exp Allergy 2021; 52:222-230. [PMID: 34773669 DOI: 10.1111/cea.14049] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Revised: 11/05/2021] [Accepted: 11/08/2021] [Indexed: 01/04/2023]
Abstract
Sensitization to lipid transfer protein (LTP), the most frequent cause of food allergy in southern Europe, still shows several controversial, but also intriguing, aspects. Some of these include the degree of cross-reactivity between LTPs from botanically distant sources, the definition of risk factors, the role of some cofactors, clinical outcomes, geographical differences and the identification of the primary sensitizer in different areas. This review article tries to analyse and comment on these aspects point by point suggesting some explanatory hypotheses with the final scope to stimulate critical thoughts and elicit the scientific discussion about this issue in the readership.
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Affiliation(s)
- Riccardo Asero
- Ambulatorio di Allergologia, Clinica San Carlo, Milan, Italy
| | - Valerio Pravettoni
- Department of General Medicine, Immunology and Allergy, IRCCS Foundation Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Enrico Scala
- Clinical and Laboratory Molecular Allergy Unit, IDI - IRCCS, Rome, Italy
| | - Danilo Villalta
- Immunologia e allergologia, Ospedale S. Maria degli Angeli, Pordenone, Italy
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Abstract
INTRODUCTION Allergies affect 20-30% of the population and respiratory allergies are mostly due to pollen grains from anemophilous plants. One to 5% of people suffer from food allergies and clinicians report increasing numbers of pollen-food allergy syndrome (PFAS), such that the symptoms have broadened from respiratory to gastrointestinal, and even to anaphylactic shock in the presence of cofactors. Thirty to 60% of food allergies are associated with pollen allergy while the percentage of pollen allergies associated to food allergy varies according to local environment and dietary habits. AREAS COVERED Articles published in peer-reviewed journals, covered by PubMed databank, clinical data are discussed including symptoms, diagnosis, and management. A chapter emphasizes the role of six well-known allergen families involved in PFAS: PR10 proteins, profilins, lipid transfer proteins, thaumatin-like proteins, isoflavone reductases, and β-1,3 glucanases. The relevance in PFAS of three supplementary allergen families is presented: oleosins, polygalacturonases, and gibberellin-regulated proteins. To support the discussion a few original relevant results were added. EXPERT OPINION Both allergenic sources, pollen and food, are submitted to the same stressful environmental changes resulting in an increase of pathogenesis-related proteins in which numerous allergens are found. This might be responsible for the potential increase of PFAS.
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Affiliation(s)
- Pascal Poncet
- Armand Trousseau Children Hospital, Immunology Department, Allergy & Environment Research Team , Paris, France.,Immunology Department, Institut Pasteur , Paris, France
| | - Hélène Sénéchal
- Armand Trousseau Children Hospital, Immunology Department, Allergy & Environment Research Team , Paris, France
| | - Denis Charpin
- Aix Marseille University and French Clean Air Association (APPA) , Marseille, France
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Scheurer S, van Ree R, Vieths S. The Role of Lipid Transfer Proteins as Food and Pollen Allergens Outside the Mediterranean Area. Curr Allergy Asthma Rep 2021; 21:7. [PMID: 33537877 PMCID: PMC7858557 DOI: 10.1007/s11882-020-00982-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/04/2020] [Indexed: 02/02/2023]
Abstract
PURPOSE OF REVIEW To provide an overview of the prevalence and clinical manifestation of non-specific lipid transfer proteins (LTP)-mediated allergies outside the Mediterranean area and to address potential reasons for the different geographical significance of LTP-driven allergies. RECENT FINDINGS LTPs are major allergens in the Mediterranean area, which frequently can elicit severe reactions. Pru p 3 the LTP from peach is reported as genuine allergen and is considered a prototypic marker for LTP-mediated allergies. However, both food and pollen LTP allergies exist outside the Mediterranean area, but with lower clinical significance, different immunogenicity, and less clarified role. Evidence has been reported that in areas with high exposure to pollen, in particular to mugwort, pollen-derived LTPs can act as a primary sensitizer to trigger secondary food allergies. Co-sensitization to unrelated allergens might be causative for less severe reactions in response to LTPs. However, the reason for the geographical different sensitization patterns to LTPs remains unclear.
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Affiliation(s)
- Stephan Scheurer
- Molecular Allergology, Paul-Ehrlich-Institut, Paul-Ehrlich Str. 51-59, 63225, Langen, Germany.
| | - Ronald van Ree
- Departments of Experimental Immunology and of Otorhinolaryngology, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - Stefan Vieths
- Molecular Allergology, Paul-Ehrlich-Institut, Paul-Ehrlich Str. 51-59, 63225, Langen, Germany
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Bogas G, Muñoz‐Cano R, Mayorga C, Casas R, Bartra J, Pérez N, Pascal M, Palomares F, Torres MJ, Gómez F. Phenotyping peach-allergic patients sensitized to lipid transfer protein and analysing severity biomarkers. Allergy 2020; 75:3228-3236. [PMID: 32535938 DOI: 10.1111/all.14447] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 05/10/2020] [Accepted: 05/18/2020] [Indexed: 01/19/2023]
Abstract
BACKGROUND Patients with peach allergy due to nsLTP sensitization constitute a heterogeneous group in terms of sensitization profile and severity. This could be due to the presence of additional allergies to pollens. The aim of this study was to analyse the clinical characteristics, sensitization profile and severity of reactions in peach-allergic patients sensitized to nsLTP from two Mediterranean areas with different pollen exposure. METHODS Patients with diagnosis of LTP allergy from the Allergy Unit of Hospital Regional Universitario de Malaga (HRUM) and Hospital Clinic de Barcelona (HCB) were prospectively included and classified into two groups; (a) LTP-monoallergic: those that presented reaction only with peach and (b) LTP-Allergy: those that presented reaction with peach and at least another plant-food containing LTP. RESULTS A total of 252 patients were included, 235 (93.2%) had LTP-syndrome and 17 (6.8%) were LTP-monoallergic. We found a higher percentage of anaphylaxis and delayed onset of symptoms in the LTP-monoallergic group (P = .02 and P = .04, respectively). Moreover, anaphylaxis was less frequent in patients with profilin sensitization (P = .03). The comparison of patients' data from HRUM with data from HCB showed differences in sensitization to olive tree pollen and profilin (P = .01 and P = .001, respectively). CONCLUSION This study was undertaken to characterize two large group of subjects from to two regions with differing exposures to pollen. We found that more than 90% of peach-allergic patients in both populations evolved to LTP-Allergy and showed an early onset. Profilin sensitization could be more useful as a severity biomarker than the number of nsLTP, aeroallergen sensitizations or sIgE levels. This could provide clues regarding sensitization and severity patterns that might be relevant in other geographical areas.
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Affiliation(s)
- Gador Bogas
- Allergy Unit IBIMA‐ Hospital Regional Universitario de Malaga Malaga Spain
| | - Rosa Muñoz‐Cano
- Allergy Section Pneumology Department IDIBAPS Universitat de Barcelona, Hospital Clínic Barcelona Spain
- Spanish Network for Allergy ‐ RETICS de Asma Reacciones adversas y Alérgicas (ARADyAL) Madrid Spain
| | - Cristobalina Mayorga
- Allergy Unit IBIMA‐ Hospital Regional Universitario de Malaga Malaga Spain
- Spanish Network for Allergy ‐ RETICS de Asma Reacciones adversas y Alérgicas (ARADyAL) Madrid Spain
- Research Laboratory IBIMA‐ Hospital Regional Universitario de Malaga Malaga Spain
| | - Rocio Casas
- Allergy Section Pneumology Department IDIBAPS Universitat de Barcelona, Hospital Clínic Barcelona Spain
| | - Joan Bartra
- Allergy Section Pneumology Department IDIBAPS Universitat de Barcelona, Hospital Clínic Barcelona Spain
- Spanish Network for Allergy ‐ RETICS de Asma Reacciones adversas y Alérgicas (ARADyAL) Madrid Spain
| | - Natalia Pérez
- Allergy Unit IBIMA‐ Hospital Regional Universitario de Malaga Malaga Spain
| | - Mariona Pascal
- Allergy Section Pneumology Department IDIBAPS Universitat de Barcelona, Hospital Clínic Barcelona Spain
- Spanish Network for Allergy ‐ RETICS de Asma Reacciones adversas y Alérgicas (ARADyAL) Madrid Spain
| | - Francisca Palomares
- Research Laboratory IBIMA‐ Hospital Regional Universitario de Malaga Malaga Spain
| | - María José Torres
- Allergy Unit IBIMA‐ Hospital Regional Universitario de Malaga Malaga Spain
- Spanish Network for Allergy ‐ RETICS de Asma Reacciones adversas y Alérgicas (ARADyAL) Madrid Spain
- Research Laboratory IBIMA‐ Hospital Regional Universitario de Malaga Malaga Spain
| | - Francisca Gómez
- Allergy Unit IBIMA‐ Hospital Regional Universitario de Malaga Malaga Spain
- Spanish Network for Allergy ‐ RETICS de Asma Reacciones adversas y Alérgicas (ARADyAL) Madrid Spain
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Zhao L, Fu W, Gao B, Liu Y, Wu S, Chen Z, Zhang X, Wang H, Feng Y, Wang X, Wang H, Lan T, Liu M, Wang X, Sun Y, Luo F, Gadermaier G, Ferreira F, Versteeg SA, Akkerdaas JH, Wang D, Valenta R, Vrtala S, Gao Z, van Ree R. Variation in IgE binding potencies of seven Artemisia species depending on content of major allergens. Clin Transl Allergy 2020; 10:50. [PMID: 33292509 PMCID: PMC7677751 DOI: 10.1186/s13601-020-00354-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 10/29/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Artemisia weed pollen allergy is important in the northern hemisphere. While over 350 species of this genus have been recorded, there has been no full investigation into whether different species may affect the allergen diagnosis and treatment. This study aimed to evaluate the variations in amino acid sequences and the content of major allergens, and how these affect specific IgE binding capacity in representative Artemisia species. METHODS Six representative Artemisia species from China and Artemisia vulgaris from Europe were used to determine allergen amino acid sequences by transcriptome, gene sequencing and mass spectrometry of the purified allergen component proteins. Sandwich ELISAs were developed and applied for Art v 1, Art v 2 and Art v 3 allergen quantification in different species. Aqueous pollen extracts and purified allergen components were used to assess IgE binding by ELISA and ImmunoCAP with mugwort allergic patient serum pools and individual sera from five areas in China. RESULTS The Art v 1 and Art v 2 homologous allergen sequences in the seven Artemisia species were highly conserved. Art v 3 type allergens in A. annua and A. sieversiana were more divergent compared to A. argyi and A. vulgaris. The allergen content of Art v 1 group in the seven extracts ranged from 3.4% to 7.1%, that of Art v 2 from 1.0% to 3.6%, and Art v 3 from 0.3% to 10.5%. The highest IgE binding potency for most Chinese Artemisia allergy patients was with A. annua pollen extract, followed by A. vulgaris and A. argyi, with A. sieversiana significantly lower. Natural Art v 1-3 isoallergens from different species have almost equivalent IgE binding capacity in Artemisia allergic patients from China. CONCLUSION AND CLINICAL RELEVANCE There was high sequence similarity but different content of the three group allergens from different Artemisia species. Choice of Artemisia annua and A. argyi pollen source for diagnosis and immunotherapy is recommended in China.
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Affiliation(s)
- Lan Zhao
- Allergy Research Center, Zhejiang University, Hangzhou, 310058, China
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Wanyi Fu
- State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, China
| | - Biyuan Gao
- Hangzhou Aileji Biotech Ltd, Hangzhou, China
| | - Yi Liu
- Allergy Research Center, Zhejiang University, Hangzhou, 310058, China
| | - Shandong Wu
- Allergy Research Center, Zhejiang University, Hangzhou, 310058, China
| | - Zhi Chen
- Allergy Research Center, Zhejiang University, Hangzhou, 310058, China
- School of Medicine, The First Affiliated Hospital, Zhejiang University, Hangzhou, 310013, China
| | - Xianqi Zhang
- Department of Allergy, School of Medicine, the Second Affiliated Hospital, Zhejiang University, Hangzhou, 310013, China
| | - Huiying Wang
- Department of Allergy, School of Medicine, the Second Affiliated Hospital, Zhejiang University, Hangzhou, 310013, China
| | - Yan Feng
- The First Affiliated Hospital, Shanxi Medical University, Taiyuan, Shanxi, 030012, China
| | - Xueyan Wang
- Department of Allergy, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Hongtian Wang
- Department of Allergy, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Tianfei Lan
- Department of Allergy, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Meiling Liu
- Department of Allergy, The Third People's Hospital of Datong, Datong, Shanxi, 037008, China
| | - Xuefeng Wang
- Department of Allergy, The Third People's Hospital of Datong, Datong, Shanxi, 037008, China
| | - Yuemei Sun
- Department of Allergy, Yu Huang Ding Hospital, Yan Tai, Yantai, China
| | - Fangmei Luo
- Department of Otorhinolaryngology, Qvjing Chinese Traditional Medicine Hospital, Yunnan, China
| | - Gabriele Gadermaier
- Department of Biosciences, University of Salzburg, Hellbrunnerstrasse 34, Salzburg, 5020, Austria
| | - Fatima Ferreira
- Department of Biosciences, University of Salzburg, Hellbrunnerstrasse 34, Salzburg, 5020, Austria
| | - Serge A Versteeg
- Departments of Experimental Immunology and of Otorhinolaryngology, UMC, University Of Amsterdam, Meibergdreef 9, 1105 AZ , Amsterdam, The Netherlands
| | - Jaap H Akkerdaas
- Departments of Experimental Immunology and of Otorhinolaryngology, UMC, University Of Amsterdam, Meibergdreef 9, 1105 AZ , Amsterdam, The Netherlands
| | - Deyun Wang
- Department of Otolaryngology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Rudolf Valenta
- Division of Immunopathology, Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
- Sechenov First Moscow State Medical University, Moscow, Russian Federation
- National Research Center - Institute of Immunology FMBA of Russia, Moscow, Russian Federation
- Karl Landsteiner University for Health Sciences, Krems, Austria
| | - Susanne Vrtala
- Division of Immunopathology, Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Zhongshan Gao
- Allergy Research Center, Zhejiang University, Hangzhou, 310058, China.
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China.
- Departments of Experimental Immunology and of Otorhinolaryngology, UMC, University Of Amsterdam, Meibergdreef 9, 1105 AZ , Amsterdam, The Netherlands.
| | - Ronald van Ree
- Departments of Experimental Immunology and of Otorhinolaryngology, UMC, University Of Amsterdam, Meibergdreef 9, 1105 AZ , Amsterdam, The Netherlands
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12
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Aruanno A, Urbani S, Frati F, Nucera E. LTP allergy/sensitization in a pediatric population. Allergol Immunopathol (Madr) 2020; 48:763-770. [PMID: 32402622 DOI: 10.1016/j.aller.2020.03.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 03/22/2020] [Accepted: 03/31/2020] [Indexed: 12/30/2022]
Abstract
Plant lipid transfer proteins (LTPs) are widespread plant food allergens, highly resistant to food processing and to the gastrointestinal environment, which have been described as the most common food allergens in the Mediterranean area. LTP allergy is widely described in adults, but it represents an emerging allergen also in the pediatric population. Little is known about the real prevalence and the clinical features of this allergy in children and it still often remains underdiagnosed in these patients. An early identification and a deeper knowledge of this allergy in childhood can avoid severe systemic reactions and improve the child's quality of life. Pediatricians should always consider the possibility of LTP involvement in cases of plant-derived food allergy.
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Affiliation(s)
- A Aruanno
- Allergy Unit, Fondazione Policlinico Universitario A. Gemelli IRCSS, Rome, Italy.
| | - S Urbani
- Allergy Unit, Fondazione Policlinico Universitario A. Gemelli IRCSS, Rome, Italy.
| | | | - E Nucera
- Allergy Unit, Fondazione Policlinico Universitario A. Gemelli IRCSS, Rome, Italy.
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13
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Characteristics of pollen-related food allergy based on individual pollen allergy profiles in the Chinese population. World Allergy Organ J 2020; 13:100120. [PMID: 32435327 PMCID: PMC7229292 DOI: 10.1016/j.waojou.2020.100120] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 03/08/2020] [Accepted: 04/02/2020] [Indexed: 01/28/2023] Open
Abstract
Background Patients with pollinosis are often multi-sensitized to diverse pollen allergens. However, little is known about pollen allergy types among Chinese pollinosis patients. This study is aimed to characterize clinical manifestations of food allergy among patients with different types of pollen allergy. Methods We retrospectively analyzed 402 pollinosis patients from an outpatient allergy department of the Peking Union Medical College Hospital who had been diagnosed by experienced allergists. All included patients who answered a questionnaire regarding seasonal pollinosis and clinical symptoms after ingestion of food and underwent intradermal skin tests. Total IgE and specific IgE levels were quantified by ImmunoCAP, using 0.35 kUA/L as a threshold for positivity. Results The patients were divided into 3 groups, based on the season during which they experienced symptoms and the 2 peaks of Chinese airborne pollen: spring-tree pollen symptoms group (SG), autumn-weed pollen symptoms group (AG), and a combined spring and autumn pollen symptoms group (CG). Birch pollen (83%) and ash pollen (74%) were common allergens among patients with spring symptoms, while mugwort pollen (87%) was a common allergen among patients with autumn symptoms. In total, 30% of the study population experienced pollen-related food allergy. Pollen-related food allergies were more prevalent among the single-season symptom groups (68% and 50% for the SG and AG, respectively) than among the CG (20%). All patients with pollen-related food-induced anaphylaxis exhibited autumn weed pollen symptoms. Except for 2 patients, all patients with food-induced anaphylaxis were allergic to mugwort pollen. In the SG, all patients with food allergy were sensitive to birch pollen, with birch and Bet v 1-specific IgE levels higher in this group than in the group without food allergy (p < 0.001). In the AG, Art v 3 was more prevalent among patients with pollen-related food allergy than without food allergy (79% vs. 33%, p < 0.001), a proportion similar to the one in the CG (67% vs. 48%, p = 0.01). Meanwhile, the Art v 3-specific IgE levels among patients with pollen-related food allergy were higher than among tolerant patients in the AG (p < 0.001) and CG (p = 0.02). Unexpectedly, the Art v 3-specific IgE levels were higher in patients with food-induced anaphylaxis than with oral allergy syndrome only in the CG. Conclusions Bet v 1 (a Pathogenesis-related 10 protein) and Art v 3 (a non-specific lipid transfer protein; nsLTP) are candidate molecular biomarkers for the diagnosis of food allergies in patients with season-specific pollen-related allergies. Measuring pollen allergen component-specific IgE levels might be an effective tool for the management of pollinosis in clinical practice in China.
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14
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Alvaro-Lozano M, Akdis CA, Akdis M, Alviani C, Angier E, Arasi S, Arzt-Gradwohl L, Barber D, Bazire R, Cavkaytar O, Comberiati P, Dramburg S, Durham SR, Eifan AO, Forchert L, Halken S, Kirtland M, Kucuksezer UC, Layhadi JA, Matricardi PM, Muraro A, Ozdemir C, Pajno GB, Pfaar O, Potapova E, Riggioni C, Roberts G, Rodríguez Del Río P, Shamji MH, Sturm GJ, Vazquez-Ortiz M. EAACI Allergen Immunotherapy User's Guide. Pediatr Allergy Immunol 2020; 31 Suppl 25:1-101. [PMID: 32436290 PMCID: PMC7317851 DOI: 10.1111/pai.13189] [Citation(s) in RCA: 137] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Allergen immunotherapy is a cornerstone in the treatment of allergic children. The clinical efficiency relies on a well-defined immunologic mechanism promoting regulatory T cells and downplaying the immune response induced by allergens. Clinical indications have been well documented for respiratory allergy in the presence of rhinitis and/or allergic asthma, to pollens and dust mites. Patients who have had an anaphylactic reaction to hymenoptera venom are also good candidates for allergen immunotherapy. Administration of allergen is currently mostly either by subcutaneous injections or by sublingual administration. Both methods have been extensively studied and have pros and cons. Specifically in children, the choice of the method of administration according to the patient's profile is important. Although allergen immunotherapy is widely used, there is a need for improvement. More particularly, biomarkers for prediction of the success of the treatments are needed. The strength and efficiency of the immune response may also be boosted by the use of better adjuvants. Finally, novel formulations might be more efficient and might improve the patient's adherence to the treatment. This user's guide reviews current knowledge and aims to provide clinical guidance to healthcare professionals taking care of children undergoing allergen immunotherapy.
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Affiliation(s)
| | - Cezmi A Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland.,Christine Kühne-Center for Allergy Research and Education, Davos, Switzerland
| | - Mubeccel Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Cherry Alviani
- The David Hide Asthma and Allergy Research Centre, St Mary's Hospital, Newport, Isle of Wight, UK.,Clinical and Experimental Sciences and Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, UK.,NIHR Southampton Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Elisabeth Angier
- Primary Care and Population Sciences, University of Southampton, Southampton, UK
| | - Stefania Arasi
- Pediatric Allergology Unit, Department of Pediatric Medicine, Bambino Gesù Children's research Hospital (IRCCS), Rome, Italy
| | - Lisa Arzt-Gradwohl
- Department of Dermatology and Venerology, Medical University of Graz, Graz, Austria
| | - Domingo Barber
- School of Medicine, Institute for Applied Molecular Medicine (IMMA), Universidad CEU San Pablo, Madrid, Spain.,RETIC ARADYAL RD16/0006/0015, Instituto de Salud Carlos III, Madrid, Spain
| | - Raphaëlle Bazire
- Allergy Department, Hospital Infantil Niño Jesús, ARADyAL RD16/0006/0026, Madrid, Spain
| | - Ozlem Cavkaytar
- Department of Paediatric Allergy and Immunology, Faculty of Medicine, Goztepe Training and Research Hospital, Istanbul Medeniyet University, Istanbul, Turkey
| | - Pasquale Comberiati
- Department of Clinical Immunology and Allergology, I.M. Sechenov First Moscow State Medical University, Moscow, Russia.,Department of Clinical and Experimental Medicine, Section of Paediatrics, University of Pisa, Pisa, Italy
| | - Stephanie Dramburg
- Department of Pediatric Pneumology, Immunology and Intensive Care Medicine, Charité Medical University, Berlin, Germany
| | - Stephen R Durham
- Immunomodulation and Tolerance Group; Allergy and Clinical Immunology, Section of Inflammation, Repair and Development, National Heart and Lung Institute, Imperial College London, London, UK.,the MRC & Asthma UK Centre in Allergic Mechanisms of Asthma, London, UK
| | - Aarif O Eifan
- Allergy and Clinical Immunology, National Heart and Lung Institute, Imperial College London and Royal Brompton Hospitals NHS Foundation Trust, London, UK
| | - Leandra Forchert
- Department of Pediatric Pneumology, Immunology and Intensive Care Medicine, Charité Medical University, Berlin, Germany
| | - Susanne Halken
- Hans Christian Andersen Children's Hospital, Odense University Hospital, Odense, Denmark
| | - Max Kirtland
- Immunomodulation and Tolerance Group, Allergy and Clinical Immunology, Inflammation, Repair and Development, National Heart and Lung Institute, Asthma UK Centre in Allergic Mechanisms of Asthma, Imperial College London, London, UK
| | - Umut C Kucuksezer
- Aziz Sancar Institute of Experimental Medicine, Department of Immunology, Istanbul University, Istanbul, Turkey
| | - Janice A Layhadi
- Immunomodulation and Tolerance Group; Allergy and Clinical Immunology, Section of Inflammation, Repair and Development, National Heart and Lung Institute, Imperial College London, London, UK.,the MRC & Asthma UK Centre in Allergic Mechanisms of Asthma, London, UK.,Immunomodulation and Tolerance Group, Allergy and Clinical Immunology, Inflammation, Repair and Development, National Heart and Lung Institute, Asthma UK Centre in Allergic Mechanisms of Asthma, Imperial College London, London, UK
| | - Paolo Maria Matricardi
- Department of Pediatric Pneumology, Immunology and Intensive Care Medicine, Charité Medical University, Berlin, Germany
| | - Antonella Muraro
- The Referral Centre for Food Allergy Diagnosis and Treatment Veneto Region, Department of Women and Child Health, University of Padua, Padua, Italy
| | - Cevdet Ozdemir
- Institute of Child Health, Department of Pediatric Basic Sciences, Istanbul University, Istanbul, Turkey.,Faculty of Medicine, Department of Pediatrics, Division of Pediatric Allergy and Immunology, Istanbul University, Istanbul, Turkey
| | | | - Oliver Pfaar
- Department of Otorhinolaryngology, Head and Neck Surgery, Section of Rhinology and Allergy, University Hospital Marburg, Philipps-Universität Marburg, Marburg, Germany
| | - Ekaterina Potapova
- Department of Pediatric Pneumology, Immunology and Intensive Care Medicine, Charité Medical University, Berlin, Germany
| | - Carmen Riggioni
- Pediatric Allergy and Clinical Immunology Service, Institut de Reserca Sant Joan de Deú, Barcelona, Spain
| | - Graham Roberts
- The David Hide Asthma and Allergy Research Centre, St Mary's Hospital, Newport, Isle of Wight, UK.,NIHR Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust, Southampton, UK.,Paediatric Allergy and Respiratory Medicine (MP803), Clinical & Experimental Sciences & Human Development in Health Academic Units University of Southampton Faculty of Medicine & University Hospital Southampton, Southampton, UK
| | | | - Mohamed H Shamji
- Immunomodulation and Tolerance Group; Allergy and Clinical Immunology, Section of Inflammation, Repair and Development, National Heart and Lung Institute, Imperial College London, London, UK.,the MRC & Asthma UK Centre in Allergic Mechanisms of Asthma, London, UK
| | - Gunter J Sturm
- Department of Dermatology and Venerology, Medical University of Graz, Graz, Austria
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15
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Oeo‐Santos C, Navas A, Benedé S, Ruíz‐León B, Díaz‐Perales A, Vogel L, Moreno‐Aguilar C, Jurado A, Villalba M, Barderas R. New insights into the sensitization to nonspecific lipid transfer proteins from pollen and food: New role of allergen Ole e 7. Allergy 2020; 75:798-807. [PMID: 31605380 DOI: 10.1111/all.14086] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 09/17/2019] [Accepted: 09/19/2019] [Indexed: 12/13/2022]
Abstract
BACKGROUND Ole e 7 is a nonspecific lipid transfer protein (nsLTP) from olive pollen, one of the main allergenic pollens worldwide. This allergenic nsLTP is responsible for severe symptoms in regions with high olive pollen exposure, where many Ole e 7-sensitized patients exhibit a co-sensitization to the peach nsLTP, Pru p 3. However, there is no evidence of cross-reactivity, which explains this observed co-sensitization. Therefore, the purpose of this study was to explore the relationship between Ole e 7 and Pru p 3. METHODS A total of 48 patients sensitized to Ole e 7 and/or Pru p 3 were included in the study. Specific IgE serum levels were measured by ImmunoCAP 250 and ELISA. Inhibition assays were performed to determine the existence of cross-reactivity between both nsLTPs. Allergic response was analyzed ex vivo (basophil activation test) and in vitro (RBL-2H3 mast cell model). RESULTS Common IgG and IgE epitopes were identified between both allergens. IgE-binding inhibition was detected in Ole e 7-monosensitized patients using rPru p 3 as inhibitor, reaching inhibition values of 25 and 100%. Ex vivo and in vitro assays revealed a response against rPru p 3 in four (31%) Ole e 7-monosensitized patients. CONCLUSIONS Our results suggest that Ole e 7 could play a new role as primary sensitizer in regions with high olive pollen exposure, leading to the peach nsLTP sensitization. This co-sensitization process would occur because of the cross-reactivity between Ole e 7 and Pru p 3 observed in some allergic patients.
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Affiliation(s)
- Carmen Oeo‐Santos
- Departamento de Bioquímica y Biología Molecular Facultad de Ciencias Químicas Universidad Complutense de Madrid Madrid Spain
| | - Ana Navas
- UGC Inmunología y Alergia Hospital Universitario Reina Sofía de Córdoba Córdoba Spain
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC)/Hospital Universitario Reina Sofía/Universidad de Córdoba Córdoba Spain
| | - Sara Benedé
- Departamento de Bioquímica y Biología Molecular Facultad de Ciencias Químicas Universidad Complutense de Madrid Madrid Spain
| | - Berta Ruíz‐León
- UGC Inmunología y Alergia Hospital Universitario Reina Sofía de Córdoba Córdoba Spain
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC)/Hospital Universitario Reina Sofía/Universidad de Córdoba Córdoba Spain
- Allergy Network ARADyAL Instituto de Salud Carlos III Madrid Spain
| | - Araceli Díaz‐Perales
- Allergy Network ARADyAL Instituto de Salud Carlos III Madrid Spain
- Centro de Biotecnología y Genómica de Plantas (CBGP, UPM‐INIA) Campus de Montegancedo‐UPM Madrid Spain
| | - Lothar Vogel
- Division of Allergology Paul‐Erlich‐Institut Langen Germany
| | - Carmen Moreno‐Aguilar
- UGC Inmunología y Alergia Hospital Universitario Reina Sofía de Córdoba Córdoba Spain
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC)/Hospital Universitario Reina Sofía/Universidad de Córdoba Córdoba Spain
- Allergy Network ARADyAL Instituto de Salud Carlos III Madrid Spain
| | - Aurora Jurado
- UGC Inmunología y Alergia Hospital Universitario Reina Sofía de Córdoba Córdoba Spain
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC)/Hospital Universitario Reina Sofía/Universidad de Córdoba Córdoba Spain
- Allergy Network ARADyAL Instituto de Salud Carlos III Madrid Spain
| | - Mayte Villalba
- Departamento de Bioquímica y Biología Molecular Facultad de Ciencias Químicas Universidad Complutense de Madrid Madrid Spain
- Allergy Network ARADyAL Instituto de Salud Carlos III Madrid Spain
| | - Rodrigo Barderas
- Allergy Network ARADyAL Instituto de Salud Carlos III Madrid Spain
- UFIEC, Chronic Disease Programme Instituto de Salud Carlos III Madrid Spain
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16
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Sanchiz Á, Ballesteros I, López-García A, Ramírez A, Rueda J, Cuadrado C, Linacero R. Chestnut allergen detection in complex food products: Development and validation of a real-time PCR method. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2020.109067] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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17
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Wang W, Yin J, Wang X, Ma T, Lan T, Song Q, Guo Y. Relationship between serum inhibitory activity for IgE and efficacy of Artemisia pollen subcutaneous immunotherapy for allergic rhinitis: a preliminary self-controlled study. Allergy Asthma Clin Immunol 2020; 16:18. [PMID: 32158477 PMCID: PMC7057474 DOI: 10.1186/s13223-020-0416-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Accepted: 02/25/2020] [Indexed: 01/18/2023] Open
Abstract
Background Biomarkers of clinical efficacy for subcutaneous immunotherapy (SCIT) on allergic rhinitis (AR) have not been identified yet. This study aims to assess the clinical relevance of serum inhibitory activity for IgE by the method of enzyme-linked immunosorbent facilitated antigen binding (ELIFAB) during SCIT for Artemisia-sensitized AR patients. Methods 19 AR patients were studied who had undergone Artemisia-specific SCIT for more than 8 months (19.68 months on average, ranging from 9 to 33 months). Peripheral bloods were collected before and after treatment. The serum inhibitory activity for IgE was tested by ELIFAB and the level of Artemisia-specific IgG4 (Artemisia-sIgG4) was determined by ELISA. Clinical improvement was evaluated based on the symptom scores and rescue medication use (SMS). The 2-tailed Wilcoxon signed-rank test and the Spearman rank test (two-tailed) were used to analyze data by using SPSS 20.0, with P values of less than 0.05 considered as significant. Results The SMS decreased significantly after SCIT (before: 12.79 ± 4.250, after: 6.11 ± 3.828, P = 0.000 < 0.01), the treatment was remarkably effective for 6 patients, effective for 10 and ineffective for 3, along with a total effective rate 84.21%. The serum inhibitory activity for IgE increased significantly after SCIT (P < 0.05) and was correlated with the levels of Artemisia-sIgG4 (r = − 0.501, P = 0.002 < 0.01). The levels of Artemisia-sIgG4 elevated dramatically after treatment (P < 0.01) and were related with the duration of treatment (r = 0.558, P = 0.000 < 0.01). But there was no relationship between clinical improvements and the serum inhibitory activity for IgE. Conclusions The serum inhibitory activity for IgE increased significantly after SCIT, however, there was no correlation between it and clinical improvements by statistics analysis. So whether the serum inhibitory activity for IgE can act as biomarker of efficacy for SCIT or not needs to be studied further.
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Affiliation(s)
- Wenping Wang
- 1Department of Otolaryngology, Head and Neck Surgery, Peking University Ninth School of Clinical Medicine, Beijing, China
| | - Jinshu Yin
- 1Department of Otolaryngology, Head and Neck Surgery, Peking University Ninth School of Clinical Medicine, Beijing, China.,2Department of Otolaryngology, Head and Neck Surgery, Capital Medical University Affiliated Beijing Shijitan Hospital, Beijing, China
| | - Xueyan Wang
- 3Department of Allergy, Capital Medical University Affiliated Beijing Shijitan Hospital, Beijing, China
| | - Tingting Ma
- 3Department of Allergy, Capital Medical University Affiliated Beijing Shijitan Hospital, Beijing, China
| | - Tianfei Lan
- 3Department of Allergy, Capital Medical University Affiliated Beijing Shijitan Hospital, Beijing, China
| | - Qingkun Song
- 4Department of Science and Technology, Capital Medical University Affiliated Beijing Shijitan Hospital, Beijing, China
| | - Yifan Guo
- 5Department of General Surgery, Peking University Ninth School of Clinical Medicine, Beijing, China
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18
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Cuadrado C, Sanchiz A, Vicente F, Ballesteros I, Linacero R. Changes Induced by Pressure Processing on Immunoreactive Proteins of Tree Nuts. Molecules 2020; 25:E954. [PMID: 32093394 PMCID: PMC7070680 DOI: 10.3390/molecules25040954] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 02/18/2020] [Accepted: 02/20/2020] [Indexed: 12/27/2022] Open
Abstract
Tree nuts confer many health benefits due to their high content of vitamins and antioxidants, and they are increasingly consumed in the last few years. Food processing is an important industrial tool to modify allergenic properties of foods, in addition to ensuring safety and enhancing organoleptic characteristics. The effect of high pressure, without and with heating, on SDS-PAGE and immunodetection profile of potential allergenic proteins (anti-11S, anti-2S and anti-LTP) of pistachio, cashew, peanut, hazelnut, almond, and chestnut was investigated. Processing based on heat and/or pressure and ultra-high pressure (HHP, 300-600 MPa) without heating was applied. After treating the six tree nuts with pressure combined with heat, a progressive diminution of proteins with potential allergenic properties was observed. Moreover, some tree nuts proteins (pistachio, cashew, and peanut) seemed to be more resistant to technological processing than others (hazelnut and chestnut). High pressure combined with heating processing markedly reduce tree nut allergenic potential as the pressure and treatment time increases. HHP do not alter hazelnut and almond immunoreactivity.
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Affiliation(s)
- Carmen Cuadrado
- Departamento de Tecnología de Alimentos, SGIT-INIA, Ctra. La Coruña Km. 7.5, 28040 Madrid, Spain; (A.S.); (F.V.)
| | - Africa Sanchiz
- Departamento de Tecnología de Alimentos, SGIT-INIA, Ctra. La Coruña Km. 7.5, 28040 Madrid, Spain; (A.S.); (F.V.)
| | - Fatima Vicente
- Departamento de Tecnología de Alimentos, SGIT-INIA, Ctra. La Coruña Km. 7.5, 28040 Madrid, Spain; (A.S.); (F.V.)
| | - Isabel Ballesteros
- Facultad de Ingeniería y Ciencias Aplicadas, Grupo de Investigación en Biotecnología Aplicada a Biomedicina (BIOMED), Universidad de Las Américas, 72819 Quito, Ecuador;
| | - Rosario Linacero
- Departamento de Genética, Fisiología y Microbiología Facultad de Biología, Universidad Complutense de Madrid, 28040 Madrid, Spain;
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Pablos I, Egger M, Vejvar E, Reichl V, Briza P, Zennaro D, Rafaiani C, Pickl W, Bohle B, Mari A, Ferreira F, Gadermaier G. Similar Allergenicity to Different Artemisia Species Is a Consequence of Highly Cross-Reactive Art v 1-Like Molecules. ACTA ACUST UNITED AC 2019; 55:medicina55080504. [PMID: 31434264 PMCID: PMC6723817 DOI: 10.3390/medicina55080504] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Revised: 08/12/2019] [Accepted: 08/13/2019] [Indexed: 11/16/2022]
Abstract
Background and objectives: Pollens of weeds are relevant elicitors of type I allergies. While many Artemisia species occur worldwide, allergy research so far has only focused on Artemisia vulgaris. We aimed to characterize other prevalent Artemisia species regarding their allergen profiles. Materials and Methods: Aqueous extracts of pollen from seven Artemisia species were characterized by gel electrophoresis and ELISA using sera from mugwort pollen-allergic patients (n = 11). The cDNA sequences of defensin–proline-linked proteins (DPLPs) were obtained, and purified proteins were tested in a competition ELISA, in rat basophil mediator release assays, and for activation of Jurkat T cells transduced with an Art v 1-specific TCR. IgE cross-reactivity to other allergens was evaluated using ImmunoCAP and ISAC. Results: The protein patterns of Artemisia spp. pollen extracts were similar in gel electrophoresis, with a major band at 24 kDa corresponding to DPLPs, like the previously identified Art v 1. Natural Art v 1 potently inhibited IgE binding to immobilized pollen extracts. Six novel Art v 1 homologs with high sequence identity and equivalent IgE reactivity were identified and termed Art ab 1, Art an 1, Art c 1, Art f 1, Art l 1, and Art t 1. All proteins triggered mediator release and cross-reacted at the T cell level. The Artemisia extracts contained additional IgE cross-reactive molecules from the nonspecific lipid transfer protein, pectate lyase, profilin, and polcalcin family. Conclusions: Our findings demonstrate that DPLPs in various Artemisia species have high allergenic potential. Therefore, related Artemisia species need to be considered to be allergen elicitors, especially due to the consideration of potential geographic expansion due to climatic changes.
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Affiliation(s)
- Isabel Pablos
- Department of Biosciences, University of Salzburg, 5020 Salzburg, Austria
| | - Matthias Egger
- Department of Biosciences, University of Salzburg, 5020 Salzburg, Austria
| | - Eva Vejvar
- Department of Biosciences, University of Salzburg, 5020 Salzburg, Austria
| | - Victoria Reichl
- Institute of Immunology, Center for Pathophysiology, Infection and Immunology, Medical University of Vienna, 1090 Vienna, Austria
| | - Peter Briza
- Department of Biosciences, University of Salzburg, 5020 Salzburg, Austria
| | - Danila Zennaro
- Associated Centers for Molecular Allergology, 04100 Rome, Italy
- Center for Molecular Allergology, IDI-IRCCS, 00167 Rome, Italy
| | - Chiara Rafaiani
- Associated Centers for Molecular Allergology, 04100 Rome, Italy
- Center for Molecular Allergology, IDI-IRCCS, 00167 Rome, Italy
| | - Winfried Pickl
- Institute of Immunology, Center for Pathophysiology, Infection and Immunology, Medical University of Vienna, 1090 Vienna, Austria
| | - Barbara Bohle
- Institute of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090 Vienna, Austria
| | - Adriano Mari
- Associated Centers for Molecular Allergology, 04100 Rome, Italy
- Center for Molecular Allergology, IDI-IRCCS, 00167 Rome, Italy
| | - Fatima Ferreira
- Department of Biosciences, University of Salzburg, 5020 Salzburg, Austria
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Denisow-Pietrzyk M, Pietrzyk Ł, Denisow B. Asteraceae species as potential environmental factors of allergy. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:6290-6300. [PMID: 30666578 PMCID: PMC6428906 DOI: 10.1007/s11356-019-04146-w] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Accepted: 01/02/2019] [Indexed: 05/09/2023]
Abstract
The statistics from Europe and the USA have proven a high risk for skin diseases associated with plant contact. Therefore, plant-induced dermatitis is of increasing attention in dermatology. The focus of this paper was to present the current knowledge on aspects of contact allergy related to Asteraceae (Compositae) species. The Asteraceae family is one of the largest in the world with members across all continents. The PubMed/Medline databases have been searched. The Asteraceae representatives consist of diverse secondary metabolites, which exhibit various advantageous effects in humans. In particular, sesquiterpene lactones (SLs) may cause sensitization resulting in skin irritation and inflammation. In this study, we tried to reveal the allergenic potential of several Asteraceae species. The Asteraceae-related allergy symptoms involve eczema, hay fever, asthma, or even anaphylaxis. Furthermore, the evidence of severe cross-reactivity with food and pollen allergens (PFS) in patients sensitive to Asteraceae allergens have been announced. Further identification and characterization of secondary metabolites and possible allergens in Asteraceae are necessary for the better understanding of Asteraceae-related immune response. The Asteraceae allergy screening panel (the SL mix and the Compositae mix of five plant species) is a promising tool to improve allergy diagnostics and therapy.
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Affiliation(s)
- Marta Denisow-Pietrzyk
- Department of Dermatology, 1st Military Clinical Hospital with the Outpatient Clinic in Lublin, Lublin, Poland
- Department of Didactics and Medical Simulation, Chair of Anatomy, Medical University of Lublin, Jaczewskiego 4, 20-094, Lublin, Poland
| | - Łukasz Pietrzyk
- Department of Didactics and Medical Simulation, Chair of Anatomy, Medical University of Lublin, Jaczewskiego 4, 20-094, Lublin, Poland.
- Department of General, Oncological and Minimally Invasive Surgery, 1st Military Clinical Hospital with the Outpatient Clinic in Lublin, Lublin, Poland.
| | - Bożena Denisow
- Department of Botany, Subdepartment of Plants Biology, University of Life Sciences in Lublin, Akademicka 15, 20-950, Lublin, Poland.
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Impact of lipid binding on the tertiary structure and allergenic potential of Jug r 3, the non-specific lipid transfer protein from walnut. Sci Rep 2019; 9:2007. [PMID: 30765752 PMCID: PMC6376136 DOI: 10.1038/s41598-019-38563-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Accepted: 12/31/2018] [Indexed: 01/09/2023] Open
Abstract
Plant non-specific lipid transfer proteins type 1 (nsLTP1) are small basic proteins with a hydrophobic cavity able to host a number of different ligands: i.e. fatty acids, fatty acyl-CoA, phospholipids, glycolipids, and hydroxylated fatty acids. However, ligand binding specificity differs among nsLTPs. Within this protein family, Jug r 3 from walnut has been identified as a major allergen. So far, data on the structural characterization of Jug r 3 and its lipid binding capacity are lacking. We report the results from a fluorescence-based ligand-binding assay and ligand-based NMR experiments, to study the binding interactions between Jug r 3 and the 18-carbon monounsaturated oleic acid. Furthermore, protein-based NMR experiments were employed to detect the oleate binding site of Jug r 3. The NMR data were used to dock the oleate molecule into the structural model of Jug r 3. Finally, the impact of the interaction on the allergenic potential of Jug r 3 was investigated by IgE ELISA with 6 sera from walnut allergic patients. Our data corroborate the hypothesis of direct impact of food-derived matrix on the IgE reactivity of nsLTPs.
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Faber MA, Van Gasse AL, Decuyper II, Sabato V, Hagendorens MM, Mertens C, Bridts CH, De Clerck LS, Ebo DG. Cross-Reactive Aeroallergens: Which Need to Cross Our Mind in Food Allergy Diagnosis? THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2018; 6:1813-1823. [PMID: 30172018 DOI: 10.1016/j.jaip.2018.08.010] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 08/02/2018] [Accepted: 08/20/2018] [Indexed: 01/08/2023]
Abstract
Secondary food allergies due to cross-reactivity between inhalant and food allergens are a significant and increasing global health issue. Cross-reactive food allergies predominantly involve plant-derived foods resulting from a prior sensitization to cross-reactive components present in pollen (grass, tree, weeds) and natural rubber latex. Also, primary sensitization to allergens present in fungi, insects, and both nonmammalian and mammalian meat might induce cross-reactive food allergic syndromes. Correct diagnosis of these associated food allergies is not always straightforward and can pose a difficult challenge. As a matter of fact, cross-reactive allergens might hamper food allergy diagnosis, as they can cause clinically irrelevant positive tests to cross-reacting foods that are safely consumed. This review summarizes the most relevant cross-reactivity syndromes between inhalant and food allergens. Particular focus is paid to the potential and limitations of confirmatory testing such as skin testing, specific IgE assays, molecular diagnosis, and basophil activation test.
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Affiliation(s)
- Margaretha A Faber
- Faculty of Medicine and Health Science, Department of Immunology, Allergology, Rheumatology, University of Antwerp and Antwerp University Hospital, Antwerp, Belgium
| | - Athina L Van Gasse
- Faculty of Medicine and Health Science, Department of Immunology, Allergology, Rheumatology, University of Antwerp and Antwerp University Hospital, Antwerp, Belgium; Faculty of Medicine and Health Science, Department of Pediatrics, University of Antwerp and Antwerp University Hospital, Antwerp, Belgium
| | - Ine I Decuyper
- Faculty of Medicine and Health Science, Department of Immunology, Allergology, Rheumatology, University of Antwerp and Antwerp University Hospital, Antwerp, Belgium; Faculty of Medicine and Health Science, Department of Pediatrics, University of Antwerp and Antwerp University Hospital, Antwerp, Belgium
| | - Vito Sabato
- Faculty of Medicine and Health Science, Department of Immunology, Allergology, Rheumatology, University of Antwerp and Antwerp University Hospital, Antwerp, Belgium
| | - Margo M Hagendorens
- Faculty of Medicine and Health Science, Department of Immunology, Allergology, Rheumatology, University of Antwerp and Antwerp University Hospital, Antwerp, Belgium; Faculty of Medicine and Health Science, Department of Pediatrics, University of Antwerp and Antwerp University Hospital, Antwerp, Belgium
| | - Christel Mertens
- Faculty of Medicine and Health Science, Department of Immunology, Allergology, Rheumatology, University of Antwerp and Antwerp University Hospital, Antwerp, Belgium
| | - Chris H Bridts
- Faculty of Medicine and Health Science, Department of Immunology, Allergology, Rheumatology, University of Antwerp and Antwerp University Hospital, Antwerp, Belgium
| | - Luc S De Clerck
- Faculty of Medicine and Health Science, Department of Immunology, Allergology, Rheumatology, University of Antwerp and Antwerp University Hospital, Antwerp, Belgium
| | - Didier G Ebo
- Faculty of Medicine and Health Science, Department of Immunology, Allergology, Rheumatology, University of Antwerp and Antwerp University Hospital, Antwerp, Belgium.
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Wangorsch A, Larsson H, Messmer M, García-Moral A, Lauer I, Wolfheimer S, Schülke S, Bartra J, Vieths S, Lidholm J, Scheurer S. Molecular cloning of plane pollen allergen Pla a 3 and its utility as diagnostic marker for peach associated plane pollen allergy. Clin Exp Allergy 2017; 46:764-74. [PMID: 26892183 DOI: 10.1111/cea.12721] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2015] [Revised: 01/22/2016] [Accepted: 02/07/2016] [Indexed: 11/26/2022]
Abstract
BACKGROUND Non-specific lipid transfer proteins (nsLTP) are considered to provoke allergic symptoms to plane tree pollen, which are frequently associated with peach allergy. OBJECTIVE The objective was to clone the cDNA of plane pollen nsLTP Pla a 3, to characterize IgE-binding and allergenic potency of recombinant Pla a 3 in comparison to its natural counterpart and peach nsLTP Pru p 3. METHODS Natural Pla a 3 was purified from plane pollen and analysed by mass spectrometry (MS). Recombinant Pla a 3 was characterized by SDS-PAGE and CD spectroscopy. Specific IgE to extract, components of plane pollen and Pru p 3 was measured by ImmunoCAP in sera of patients allergic to either plane pollen (n = 10), peach (n = 15) or both (n = 15). Biological potency of the proteins was investigated by in vitro mediator release assays and IgE cross-reactivity by competitive ELISA. RESULTS Two Pla a 3 isoforms were identified. Recombinant Pla a 3 showed high purity, structural integrity, IgE-binding capacity comparable to nPla a 3 and biological potency. Sensitization to plane pollen extract was confirmed in 24/25 plane pollen allergics. The frequency of sensitization to Pla a 3 was 53% among patients allergic to both plane pollen and peach and 10% among plane pollen allergics tolerating peach where most patients were sensitized to Pla a 1. Pla a 3 and Pru p 3 showed strong bi-directional IgE cross-reactivity in patients allergic to peach and plane pollen, but not in peach allergics tolerating plane pollen. Levels of IgE-binding were generally higher to Pru p 3 than to Pla a 3. CONCLUSION Sensitization to Pla a 3 is relevant in a subgroup of plane pollen allergics with concomitant peach allergy. IgE testing with Pla a 3 may serve as a marker to identify plane pollen allergic patients at risk of LTP-mediated food reactions and thereby improve in vitro diagnostic procedures.
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Affiliation(s)
- A Wangorsch
- VPr Research Group Molecular Allergology, Paul-Ehrlich-Institut, Langen, Germany
| | - H Larsson
- ThermoFisher Scientific, Uppsala, Sweden
| | - M Messmer
- VPr Research Group Molecular Allergology, Paul-Ehrlich-Institut, Langen, Germany
| | - A García-Moral
- Allergy Unit, Pneumology Department, Hospital Clinic, University of Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - I Lauer
- Test and Therapy Allergens, Paul-Ehrlich-Institut, Langen, Germany
| | - S Wolfheimer
- VPr Research Group Molecular Allergology, Paul-Ehrlich-Institut, Langen, Germany
| | - S Schülke
- VPr Research Group Molecular Allergology, Paul-Ehrlich-Institut, Langen, Germany
| | - J Bartra
- Allergy Unit, Pneumology Department, Hospital Clinic, University of Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - S Vieths
- VPr Research Group Molecular Allergology, Paul-Ehrlich-Institut, Langen, Germany
| | - J Lidholm
- ThermoFisher Scientific, Uppsala, Sweden
| | - S Scheurer
- VPr Research Group Molecular Allergology, Paul-Ehrlich-Institut, Langen, Germany
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Pablos I, Eichhorn S, Briza P, Asam C, Gartner U, Wolf M, Ebner C, Bohle B, Arora N, Vieths S, Ferreira F, Gadermaier G. Proteomic profiling of the weed feverfew, a neglected pollen allergen source. Sci Rep 2017; 7:6049. [PMID: 28729676 PMCID: PMC5519751 DOI: 10.1038/s41598-017-06213-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Accepted: 06/08/2017] [Indexed: 11/10/2022] Open
Abstract
Feverfew (Parthenium hysterophorus), an invasive weed from the Asteraceae family, has been reported as allergen source. Despite its relevance, knowledge of allergens is restricted to a partial sequence of a hydroxyproline-rich glycoprotein. We aimed to obtain the entire sequence for recombinant production and characterize feverfew pollen using proteomics and immunological assays. Par h 1, a defensin-proline fusion allergen was obtained by cDNA cloning and recombinantly produced in E. coli. Using two complementary proteomic strategies, a total of 258 proteins were identified in feverfew pollen among those 47 proteins belonging to allergenic families. Feverfew sensitized patients’ sera from India revealed IgE reactivity with a pectate lyase, PR-1 protein and thioredoxin in immonoblot. In ELISA, recombinant Par h 1 was recognized by 60 and 40% of Austrian and Indian sera, respectively. Inhibition assays demonstrated the presence of IgE cross-reactive Par h 1, pectate lyase, lipid-transfer protein, profilin and polcalcin in feverfew pollen. This study reveals significant data on the allergenic composition of feverfew pollen and makes recombinant Par h 1 available for cross-reactivity studies. Feverfew might become a global player in weed pollen allergy and inclusion of standardized extracts in routine allergy diagnosis is suggested in exposed populations.
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Affiliation(s)
- Isabel Pablos
- University of Salzburg, Department of Molecular Biology, Division of Allergy and Immunology, Salzburg, Austria
| | - Stephanie Eichhorn
- University of Salzburg, Department of Molecular Biology, Division of Allergy and Immunology, Salzburg, Austria
| | - Peter Briza
- University of Salzburg, Department of Molecular Biology, Division of Allergy and Immunology, Salzburg, Austria
| | - Claudia Asam
- University of Salzburg, Department of Molecular Biology, Division of Allergy and Immunology, Salzburg, Austria
| | - Ulrike Gartner
- University of Salzburg, Department of Ecology and Evolution, Salzburg, Austria
| | - Martin Wolf
- University of Salzburg, Department of Molecular Biology, Division of Allergy and Immunology, Salzburg, Austria
| | | | - Barbara Bohle
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria
| | - Naveen Arora
- CSIR-Institute of Genomic and Integrative Biology, Allergy and Immunology Section, Delhi, India
| | - Stefan Vieths
- Paul-Ehrlich-Institut, Federal Institute for Vaccines and Biomedicines, Langen, Germany
| | - Fatima Ferreira
- University of Salzburg, Department of Molecular Biology, Division of Allergy and Immunology, Salzburg, Austria
| | - Gabriele Gadermaier
- University of Salzburg, Department of Molecular Biology, Division of Allergy and Immunology, Salzburg, Austria.
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Cubells-Baeza N, Gómez-Casado C, Tordesillas L, Ramírez-Castillejo C, Garrido-Arandia M, González-Melendi P, Herrero M, Pacios LF, Díaz-Perales A. Identification of the ligand of Pru p 3, a peach LTP. PLANT MOLECULAR BIOLOGY 2017; 94:33-44. [PMID: 28299506 DOI: 10.1007/s11103-017-0590-z] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Accepted: 01/28/2017] [Indexed: 06/06/2023]
Abstract
Pru p 3, a peach LTP, is located in pollinated flower styles and secreting downy hairs, transporting a derivative of camptothecin bound to phytosphingosine. Pru p 3 may inhibit a second pollination and may keep away herbivores until seed maturation. The allergen Pru p 3, a peach lipid transfer protein, has been well studied. However, its physiological function remains to be elucidated. Our results showed that Pru p 3 usually carries a lipid ligand that play an essential role in its function in plants. Using ESI-qToF, we observed that the ligand was a derivative of camptothecin binding to phytosphingosine, wich that is inserted into the hydrophobic tunnel of the protein. In addition, the described ligand displayed topoisomerase I activity inhibition and self-fluorescence, both recognized as camptothecin properties. During flower development, the highest expression of Pru p 3 was detected in the styles of pollinated flowers, in contrast to its non-expression in unpollinated pistils, where expression decreased after anthesis. During ripening, the expression of Pru p 3 were observed mainly in peel but not in pulp. In this sense, Pru p 3 protein was also localized in trichomes covering the fruit epidermis.
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Affiliation(s)
- Nuria Cubells-Baeza
- Centre for Plant Biotechnology and Genomics (UPM-INIA), Campus de Montegancedo, 28223, Pozuelo de Alarcón, Madrid, Spain
- Department of Biotechnology-Plant Biology, ETSIAAB, Technical University of Madrid, Madrid, Spain
| | | | | | - Carmen Ramírez-Castillejo
- Centre for Plant Biotechnology and Genomics (UPM-INIA), Campus de Montegancedo, 28223, Pozuelo de Alarcón, Madrid, Spain
- Department of Biotechnology-Plant Biology, ETSIAAB, Technical University of Madrid, Madrid, Spain
| | - María Garrido-Arandia
- Centre for Plant Biotechnology and Genomics (UPM-INIA), Campus de Montegancedo, 28223, Pozuelo de Alarcón, Madrid, Spain
- Department of Biotechnology-Plant Biology, ETSIAAB, Technical University of Madrid, Madrid, Spain
| | - Pablo González-Melendi
- Centre for Plant Biotechnology and Genomics (UPM-INIA), Campus de Montegancedo, 28223, Pozuelo de Alarcón, Madrid, Spain
- Department of Biotechnology-Plant Biology, ETSIAAB, Technical University of Madrid, Madrid, Spain
| | - María Herrero
- Estación Experimental de Aula Dei (CSIC), Zaragoza, Spain
| | - Luis F Pacios
- Centre for Plant Biotechnology and Genomics (UPM-INIA), Campus de Montegancedo, 28223, Pozuelo de Alarcón, Madrid, Spain
- Department of Natural Systems and Resources, ETSI Montes, Technical University of Madrid, Madrid, Spain
| | - Araceli Díaz-Perales
- Centre for Plant Biotechnology and Genomics (UPM-INIA), Campus de Montegancedo, 28223, Pozuelo de Alarcón, Madrid, Spain.
- Department of Biotechnology-Plant Biology, ETSIAAB, Technical University of Madrid, Madrid, Spain.
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D'Amelio CM, Goikoetxea MJ, Martínez-Aranguren R, García BE, Gómez F, Fernández J, Bartra J, Blanca-López N, Díaz-Perales A, Sanz ML. Is the performance of ImmunoCAP ISAC 112 sufficient to diagnose peach and apple allergies? Ann Allergy Asthma Immunol 2015; 116:162-3. [PMID: 26684914 DOI: 10.1016/j.anai.2015.11.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Revised: 11/04/2015] [Accepted: 11/05/2015] [Indexed: 10/22/2022]
Affiliation(s)
- Carmen M D'Amelio
- Department de Alergología e Inmunología Clínica, Clínica Universidad de Navarra, Pamplona, Spain.
| | - María José Goikoetxea
- Department de Alergología e Inmunología Clínica, Clínica Universidad de Navarra, Pamplona, Spain
| | - Rubén Martínez-Aranguren
- Department de Alergología e Inmunología Clínica, Clínica Universidad de Navarra, Pamplona, Spain
| | - Blanca E García
- Servicio de Alergia, Complejo Hospitalario de Navarra, Pamplona, Spain
| | - Francisca Gómez
- Servicio de Alergia, Hospital Regional Universitario de Málaga, Málaga, Spain
| | - Javier Fernández
- Servicio de Alergia, Hospital General Universitario de Alicante, Alicante, Spain
| | - Joan Bartra
- Unidad de Alergia, Servei Pneumologia i Allergia Respiratoria, Hospital Clinic, Universitat de Barcelona, Institut d'Investigacions Biome'diques August Pi i Sunyer (IDIBAPS), Centro de Investigaciones Biomédicas en Red de Enfermedades Respiratorias (CIBERES), Barcelona, Spain
| | | | - Araceli Díaz-Perales
- Departamento De Biotecnología, Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid, Pozuelo de Alarcón, Madrid, Spain
| | - María Luisa Sanz
- Department de Alergología e Inmunología Clínica, Clínica Universidad de Navarra, Pamplona, Spain
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Uasuf CG, Villalta D, Conte ME, Di Sano C, Barrale M, Cantisano V, Pace E, Gjomarkaj M, Gangemi S, Brusca I. Different co-sensitizations could determine different risk assessment in peach allergy? Evaluation of an anaphylactic biomarker in Pru p 3 positive patients. Clin Mol Allergy 2015; 13:30. [PMID: 26633941 PMCID: PMC4667484 DOI: 10.1186/s12948-015-0035-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2015] [Accepted: 10/22/2015] [Indexed: 11/10/2022] Open
Abstract
Background In Italy, the nsLTP (Pru p 3) has been identified as the most frequent cause of food allergy and anaphylaxis. In order to estimate the risk assessment in peach allergy, we investigated the presence of correlations between the levels of sIgE to Pru p 3 with the severity of the clinical symptoms in two Pru p 3 positive populations from two different areas of Italy. Methods 133 consecutively Pru p 3 positive patients were recruited from South Italy, where the prevalence of PR-10 and profilin sensitization is low, and from North-East Italy, where the sensitization to pathogenesis related protein -10 (PR-10) and profilin is higher. Skin prick test (SPT) to peach extract and sIgE to peach panallergens were performed. Results All 133 patients were positive to SPT to peach extract and to sIgE to Pru p 3. The North-East population was simultaneously positive to Pru p 1 (42.8 %) and Pru p 4 (12.7 %), while no Southern patients were positive to PR-10 or to profilin. A significant difference in the levels of sIgE to Pru p 3 was found only in South Italy Pru p 3 + patients vs. asymptomatic patients (p = 0.01) and in mild reactions vs. severe reactions (p = 0.0008). In South Italy patients, it was also found a significant correlation between the severity of the clinical reaction and the levels of sIgE to Pru p 3 (p = 0.001). Conclusion Level of sIgE to Pru p 3 indicates the possibility of development a severe food allergic reaction. Pru p 3 positive patients from different geographical areas and with different co-sensitizations to Pru p 1 and/or Pru p 4 could have a different risk assessment in peach allergy.
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Affiliation(s)
- Carina Gabriela Uasuf
- Allergy Diseases Center "Prof. G. Bonsignore", Institute of Biomedicine and Molecular Immunology "A. Monroy"(IBIM)-National Research Council (CNR), Palermo, Italy
| | - Danilo Villalta
- Allergy and Clinical Immunology Unit, A.O "S. Maria degli Angeli di Pordenone", Pordenone, Italy
| | - Maria Elisabetta Conte
- Allergy and Clinical Immunology Unit, A.O "S. Maria degli Angeli di Pordenone", Pordenone, Italy
| | - Caterina Di Sano
- Allergy Diseases Center "Prof. G. Bonsignore", Institute of Biomedicine and Molecular Immunology "A. Monroy"(IBIM)-National Research Council (CNR), Palermo, Italy
| | - Maria Barrale
- Clinical Pathology, Allergy Unit, Buccheri La Ferla Hospital, Palermo, Italy
| | - Vincenzo Cantisano
- Clinical Pathology, Allergy Unit, Buccheri La Ferla Hospital, Palermo, Italy
| | - Elisabetta Pace
- Allergy Diseases Center "Prof. G. Bonsignore", Institute of Biomedicine and Molecular Immunology "A. Monroy"(IBIM)-National Research Council (CNR), Palermo, Italy
| | - Mark Gjomarkaj
- Allergy Diseases Center "Prof. G. Bonsignore", Institute of Biomedicine and Molecular Immunology "A. Monroy"(IBIM)-National Research Council (CNR), Palermo, Italy
| | - Sebastiano Gangemi
- School and Division of Allergy and Clinical Immunology, Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Ignazio Brusca
- Clinical Pathology, Allergy Unit, Buccheri La Ferla Hospital, Palermo, Italy
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Castro L, Crespo JF, Rodríguez J, Rodríguez R, Villalba M. Immunoproteomic tools are used to identify masked allergens: Ole e 12, an allergenic isoflavone reductase from olive (Olea europaea) pollen. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2015; 1854:1871-1880. [DOI: 10.1016/j.bbapap.2015.09.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Revised: 09/11/2015] [Accepted: 09/17/2015] [Indexed: 01/21/2023]
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Garino C, Coïsson JD, Arlorio M. In silico allergenicity prediction of several lipid transfer proteins. Comput Biol Chem 2015; 60:32-42. [PMID: 26643760 DOI: 10.1016/j.compbiolchem.2015.11.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Revised: 11/04/2015] [Accepted: 11/10/2015] [Indexed: 10/22/2022]
Abstract
Non-specific lipid transfer proteins (nsLTPs) are common allergens and they are particularly widespread within the plant kingdom. They have a highly conserved three-dimensional structure that generate a strong cross-reactivity among the members of this family. In the last years several web tools for the prediction of allergenicity of new molecules based on their homology with known allergens have been released, and guidelines to assess potential allergenicity of proteins through bioinformatics have been established. Even if such tools are only partially reliable yet, they can provide important indications when other kinds of molecular characterization are lacking. The potential allergenicity of 28 amino acid sequences of LTPs homologs, either retrieved from the UniProt database or in silico deduced from the corresponding EST coding sequence, was predicted using 7 publicly available web tools. Moreover, their similarity degree to their closest known LTP allergens was calculated, in order to evaluate their potential cross-reactivity. Finally, all sequences were studied for their identity degree with the peach allergen Pru p 3, considering the regions involved in the formation of its known conformational IgE-binding epitope. Most of the analyzed sequences displayed a high probability to be allergenic according to all the software employed. The analyzed LTPs from bell pepper, cassava, mango, mungbean and soybean showed high homology (>70%) with some known allergenic LTPs, suggesting a potential risk of cross-reactivity for sensitized individuals. Other LTPs, like for example those from canola, cassava, mango, mungbean, papaya or persimmon, displayed a high degree of identity with Pru p 3 within the consensus sequence responsible for the formation, at three-dimensional level, of its major conformational epitope. Since recent studies highlighted how in patients mono-sensitized to peach LTP the levels of IgE seem directly proportional to the chance of developing cross-reactivity to LTPs from non-Rosaceae foods, and these chances increase the more similar the protein is to Pru p 3, these proteins should be taken into special account for future studies aimed at evaluating the risk of cross-allergenicity in highly sensitized individuals.
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Affiliation(s)
- Cristiano Garino
- Dipartimento di Scienze del Farmaco & Drug and Food Biotechnology (DFB) Center, Università del Piemonte Orientale "A. Avogadro", largo Donegani 2, 28100 Novara, Italy.
| | - Jean Daniel Coïsson
- Dipartimento di Scienze del Farmaco & Drug and Food Biotechnology (DFB) Center, Università del Piemonte Orientale "A. Avogadro", largo Donegani 2, 28100 Novara, Italy.
| | - Marco Arlorio
- Dipartimento di Scienze del Farmaco & Drug and Food Biotechnology (DFB) Center, Università del Piemonte Orientale "A. Avogadro", largo Donegani 2, 28100 Novara, Italy.
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Offermann LR, Bublin M, Perdue ML, Pfeifer S, Dubiela P, Borowski T, Chruszcz M, Hoffmann-Sommergruber K. Structural and Functional Characterization of the Hazelnut Allergen Cor a 8. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:9150-8. [PMID: 26417906 PMCID: PMC4616228 DOI: 10.1021/acs.jafc.5b03534] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Revised: 09/23/2015] [Accepted: 09/28/2015] [Indexed: 05/28/2023]
Abstract
Nonspecific lipid transfer proteins (nsLTPs) are basic proteins, stabilized by four disulfide bonds, and are expressed throughout the plant kingdom. These proteins are also known as important allergens in fruits and tree nuts. In this study, the nsLTP from hazelnuts, Cor a 8, was purified and its crystal structure determined. The protein is stable at low pH and refolds after thermal denaturation. Molecular dynamics simulations were used to provide an insight into conformational changes of Cor a 8 upon ligand binding. When known epitope areas from Pru p 3 were compared to those of Cor a 8, differences were obvious, which may contribute to limited cross-reactivity between peach and hazelnut allergens. Differences in epitope regions may contribute to limited cross-reactivity between Cor a 8 and nsLTPs from other plant sources. The structure of Cor a 8 represents the first resolved structure of a hazelnut allergen.
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Affiliation(s)
- Lesa R. Offermann
- Department
of Chemistry and Biochemistry, University
of South Carolina, Columbia, South Carolina 29208, United States
- Department
of Chemistry, Davidson College, Davidson, North Carolina 28035, United States
| | - Merima Bublin
- Department
of Pathophysiology and Allergy Research, Center for Pathophysiology,
Infectiology and Immunology, Medical University
of Vienna, Vienna, Austria
| | - Makenzie L. Perdue
- Department
of Chemistry and Biochemistry, University
of South Carolina, Columbia, South Carolina 29208, United States
| | - Sabine Pfeifer
- Department
of Pathophysiology and Allergy Research, Center for Pathophysiology,
Infectiology and Immunology, Medical University
of Vienna, Vienna, Austria
| | - Pawel Dubiela
- Department
of Pathophysiology and Allergy Research, Center for Pathophysiology,
Infectiology and Immunology, Medical University
of Vienna, Vienna, Austria
| | - Tomasz Borowski
- Jerzy Haber
Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Kraków, Poland
| | - Maksymilian Chruszcz
- Department
of Chemistry and Biochemistry, University
of South Carolina, Columbia, South Carolina 29208, United States
| | - Karin Hoffmann-Sommergruber
- Department
of Pathophysiology and Allergy Research, Center for Pathophysiology,
Infectiology and Immunology, Medical University
of Vienna, Vienna, Austria
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Quantification of Peach Fruit Allergen Lipid Transfer Protein by a Double Monoclonal Antibody-based Sandwich ELISA. FOOD ANAL METHOD 2015. [DOI: 10.1007/s12161-015-0272-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Scala E, Till SJ, Asero R, Abeni D, Guerra EC, Pirrotta L, Paganelli R, Pomponi D, Giani M, De Pità O, Cecchi L. Lipid transfer protein sensitization: reactivity profiles and clinical risk assessment in an Italian cohort. Allergy 2015; 70:933-43. [PMID: 25903791 DOI: 10.1111/all.12635] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/19/2015] [Indexed: 01/25/2023]
Abstract
BACKGROUND Nonspecific lipid transfer proteins (nsLTPs) represent a major cause of systemic food allergic reactions in the Mediterranean area. This study investigate hierarchical patterns and cluster relationships of IgE sensitization to different nsLTPs, and the relationship to clinical allergy in a large Italian cohort. METHODS A total of 568 nsLTP-positive subjects after IgE ImmunoCAP-ISAC microarray analysis with Ara h 9, Art v 3, Cor a 8, Jug r 3, Pla a 3, Pru p 3 and Tri a 14 allergens were studied. IgE inhibition experiments were carried out with mugwort and plane tree pollen extracts. RESULTS Eighty-two per cent of nsLTP-positive participants (94% if <6 years old) were Pru p 3(pos) , and 71% were Jug r 3(pos) . Participants who reacted to >5 nsLTPs reported a higher incidence of food-induced systemic reactions. Only Art v 3 and Pla a 3 (mugwort and plane tree nsLTPs, respectively) were associated with respiratory symptoms, and a correlation was observed between sensitization to pollen and plant food nsLTPs, particularly between Pla a 3 and tree nut/peanut nsLTPs. Co-sensitization to Par j 2 and PR-10 or profilin pan-allergens was associated with a lower prior prevalence of severe food-induced reactions. In inhibition assays, plane and mugwort pollen extracts inhibited 50-100% of IgE binding to food nsLTPs in microarrays. CONCLUSIONS Testing IgE reactivity to a panel of nsLTP allergens unveils important associations between nsLTP sensitization profiles and clinical presentation and allows the identification of novel cluster patterns indicating likely cross-reactivities and highlighting potential allergens for nsLTP immunotherapy.
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Affiliation(s)
- E. Scala
- Experimental Allergy Unit; IDI-IRCCS; Rome Italy
| | - S. J. Till
- Asthma, Allergy and Lung Biology; King's College London; School of Medicine; Guy's Hospital; London UK
| | - R. Asero
- Ambulatorio di Allergologia; Clinica San Carlo; Paderno Dugnano Milan Italy
| | - D. Abeni
- Health Services Research Unit; IDI-IRCCS; Rome Italy
| | - E. C. Guerra
- Experimental Allergy Unit; IDI-IRCCS; Rome Italy
| | - L. Pirrotta
- Experimental Allergy Unit; IDI-IRCCS; Rome Italy
| | - R. Paganelli
- Department of Medicine and Ageing Science (DMSI); University G. d'Annunzio of Chieti-Pescara; Chieti Italy
| | - D. Pomponi
- Experimental Allergy Unit; IDI-IRCCS; Rome Italy
| | - M. Giani
- Experimental Allergy Unit; IDI-IRCCS; Rome Italy
| | - O. De Pità
- Laboratory of Allergy and Clinical Immunology; IDI-IRCCS; Rome Italy
| | - L. Cecchi
- UOSD Allergy and Immunology; Azienda Sanitaria di Prato; Prato Italy
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Sumiyoshi M, Inamura T, Nakamura A, Aohara T, Ishii T, Satoh S, Iwai H. UDP-arabinopyranose mutase 3 is required for pollen wall morphogenesis in rice (Oryza sativa). PLANT & CELL PHYSIOLOGY 2015; 56:232-41. [PMID: 25261533 DOI: 10.1093/pcp/pcu132] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
l-Arabinose is one of the main constituents of cell wall polysaccharides such as pectic rhamnogalacturonan I (RG-I), glucuronoarabinoxylans and other glycoproteins. It is found predominantly in the furanose form rather than in the thermodynamically more stable pyranose form. UDP-L-arabinofuranose (UDP-Araf), rather than UDP-L-arabinopyranose (UDP-Arap), is a sugar donor for the biosynthesis of arabinofuranosyl (Araf) residues. UDP-arabinopyranose mutases (UAMs) have been shown to interconvert UDP-Araf and UDP-Arap and are involved in the biosynthesis of polysaccharides including Araf. The UAM gene family has three members in Oryza sativa. Co-expression network in silico analysis showed that OsUAM3 expression was independent from OsUAM1 and OsUAM2 co-expression networks. OsUAM1 and OsUAM2 were expressed ubiquitously throughout plant development, but OsUAM3 was expressed primarily in reproductive tissue, particularly at the pollen cell wall formation developmental stage. OsUAM3 co-expression networks include pectin catabolic enzymes. To determine the function of OsUAMs in reproductive tissues, we analyzed RNA interference (RNAi)-knockdown transformants (OsUAM3-KD) specific for OsUAM3. OsUAM3-KD plants grew normally and showed abnormal phenotypes in reproductive tissues, especially in terms of the pollen cell wall and exine. In addition, we examined modifications of cell wall polysaccharides at the cellular level using antibodies against polysaccharides including Araf. Immunolocalization of arabinan using the LM6 antibody showed low levels of arabinan in OsUAM3-KD pollen grains. Our results suggest that the function of OsUAM3 is important for synthesis of arabinan side chains of RG-I and is required for reproductive developmental processes, especially the formation of the cell wall in pollen.
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Affiliation(s)
- Minako Sumiyoshi
- University of Tsukuba, Faculty of Life and Environmental Sciences, Tsukuba, Ibaraki, 305-8572 Japan
| | - Takuya Inamura
- University of Tsukuba, Faculty of Life and Environmental Sciences, Tsukuba, Ibaraki, 305-8572 Japan
| | - Atsuko Nakamura
- University of Tsukuba, Faculty of Life and Environmental Sciences, Tsukuba, Ibaraki, 305-8572 Japan
| | - Tsutomu Aohara
- University of Tsukuba, Faculty of Life and Environmental Sciences, Tsukuba, Ibaraki, 305-8572 Japan
| | - Tadashi Ishii
- University of Tsukuba, Faculty of Life and Environmental Sciences, Tsukuba, Ibaraki, 305-8572 Japan
| | - Shinobu Satoh
- University of Tsukuba, Faculty of Life and Environmental Sciences, Tsukuba, Ibaraki, 305-8572 Japan
| | - Hiroaki Iwai
- University of Tsukuba, Faculty of Life and Environmental Sciences, Tsukuba, Ibaraki, 305-8572 Japan
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Cross-reactivity among non-specific lipid-transfer proteins from food and pollen allergenic sources. Food Chem 2014; 165:397-402. [DOI: 10.1016/j.foodchem.2014.05.101] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2013] [Revised: 02/16/2014] [Accepted: 05/16/2014] [Indexed: 01/02/2023]
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Gomez F, Aranda A, Campo P, Diaz-Perales A, Blanca-Lopez N, Perkins J, Garrido M, Blanca M, Mayorga C, Torres MJ. High prevalence of lipid transfer protein sensitization in apple allergic patients with systemic symptoms. PLoS One 2014; 9:e107304. [PMID: 25210741 PMCID: PMC4161420 DOI: 10.1371/journal.pone.0107304] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Accepted: 08/12/2014] [Indexed: 11/18/2022] Open
Abstract
Background Apple allergy manifests as two main groups of clinical entities reflecting different patterns of allergen sensitization: oral allergy syndrome (OAS) and generalized symptoms (GS). Objective We analysed the sensitization profile to a wide panel of different components of food allergens (rMal d 1, Mal d 2, rMal d 3, rMal d 4, rPru p 3, rBet v 1 and Pho d 2) for a population of Mediterranean patients with OAS and GS to apple. Methods Patients (N = 81) with a history of apple allergy that could be confirmed by positive prick-prick test and/or double-blind-placebo-controlled food challenge (DBPCFC), were included. Skin prick test (SPT) and ELISA were performed using a panel of inhalant, fruit and nut allergens. ELISA and ELISA inhibition studies were performed in order to analyse the sensitization patterns. Results Thirty-five cases (43.2%) had OAS and 46 (56.8%) GS. SPT showed a significantly higher number of positive results with peach, cherry and hazelnut in those with GS. ELISA showed a significantly high percentage of positive cases to rMal d 3, rMal d 4, rPru p 3 and Pho d 2 in patients with OAS and GS compared to controls, and to rBet v 1 in patients with OAS vs controls and between OAS and GS patients. Three different patterns of recognition were detected: positive to LTP (rMal d 3 or rPru p 3), positive to profilin (rMal d 4 and Pho d 2), or positive to both. There were also patients with rMal d 1 recognition who showed cross-reactivity to rBet v 1. Conclusion In an apple allergy population with a high incidence of pollinosis different patterns of sensitization may occur. LTP is most often involved in those with GS. Profilin, though more prevalent in patients with OAS, has been shown to sensitise patients with both types of symptoms.
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Affiliation(s)
- Francisca Gomez
- Allergy Service, IBIMA, Regional University Hospital of Malaga, UMA, Malaga, Spain
| | - Ana Aranda
- Research Laboratory, IBIMA, Regional University Hospital of Malaga, UMA, Malaga, Spain
| | - Paloma Campo
- Allergy Service, IBIMA, Regional University Hospital of Malaga, UMA, Malaga, Spain
| | - Araceli Diaz-Perales
- Biotechnology Department, Center for Plant Biotechnology and Genomics, Pozuelo de Alarcon, Madrid, Spain
| | | | - James Perkins
- Research Laboratory, IBIMA, Regional University Hospital of Malaga, UMA, Malaga, Spain
| | - Maria Garrido
- Biotechnology Department, Center for Plant Biotechnology and Genomics, Pozuelo de Alarcon, Madrid, Spain
| | - Miguel Blanca
- Allergy Service, IBIMA, Regional University Hospital of Malaga, UMA, Malaga, Spain
| | - Cristobalina Mayorga
- Allergy Service, IBIMA, Regional University Hospital of Malaga, UMA, Malaga, Spain
- Research Laboratory, IBIMA, Regional University Hospital of Malaga, UMA, Malaga, Spain
| | - Maria José Torres
- Allergy Service, IBIMA, Regional University Hospital of Malaga, UMA, Malaga, Spain
- * E-mail:
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Tordesillas L, Gómez-Casado C, Garrido-Arandia M, Murua-García A, Palacín A, Varela J, Konieczna P, Cuesta-Herranz J, Akdis CA, O'Mahony L, Díaz-Perales A. Transport of Pru p 3 across gastrointestinal epithelium - an essential step towards the induction of food allergy? Clin Exp Allergy 2014; 43:1374-83. [PMID: 24261947 DOI: 10.1111/cea.12202] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2013] [Revised: 09/02/2013] [Accepted: 09/15/2013] [Indexed: 02/03/2023]
Abstract
BACKGROUND Since intestinal absorption of food protein can trigger an allergic reaction, the effect of plant food allergen on intestinal epithelial cell permeability and its ability to cross the epithelial monolayer was evaluated. OBJECTIVE To study the interaction of Pru p 3 with intestinal epithelium, its natural entrance, analyzing transport kinetics and cellular responses that trigger. METHODS This was achieved using Pru p 3, the peach LTP, as a model. Enterocytic monolayers were established by culturing Caco 2 cells, as a model of enterocytes, on permeable supports that separate the apical and basal compartments. Pru p 3 was added to the apical compartment, the transepithelial resistance (TEER) was measured, and the transport was quantified. RESULTS The peach allergen that crossed the cell monolayer was detected in the cell fraction and in the basal medium by immunodetection with specific antibodies and the quantity was measured by ELISA assay. Pru p 3 was able to cross the monolayer without disturbing the integrity of the tight junctions. This transport was significantly higher than that of a non-allergenic peach LTP, LTP1, and occurred via lipid raft pathway. The incubation of Caco 2 cells with Pru p 3 and LTP1 produced the expression of epithelial-specific cytokines TSLP, IL33 and IL25. CONCLUSION These results suggest that Pru p 3 was able to cross the cell monolayer by the transcellular route and then induce the production of Th2 cytokines. The results of the present study represent a step towards clarifying the importance of Pru p 3 as a sensitizer. CLINICAL RELEVANCE The capacity of food allergens to cross the intestinal monolayer could explain their high allergenic capacity and its fast diffusion through the body associating to severe symptoms.
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Affiliation(s)
- L Tordesillas
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Madrid, Spain
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Bolla M, Zenoni S, Scheurer S, Vieths S, San Miguel Moncin MDM, Olivieri M, Antico A, Ferrer M, Berroa F, Enrique E, Avesani L, Marsano F, Zoccatelli G. Pomegranate ( Punica granatum L.) Expresses Several nsLTP Isoforms Characterized by Different Immunoglobulin E-Binding Properties. Int Arch Allergy Immunol 2014; 164:112-21. [DOI: 10.1159/000362761] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2013] [Accepted: 04/09/2014] [Indexed: 11/19/2022] Open
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Celakovska J, Bukač J. Food allergy in patients suffering from atopic dermatitis – association with concomitant allergic diseases. FOOD AGR IMMUNOL 2014. [DOI: 10.1080/09540105.2014.914470] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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40
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Production and analysis of recombinant tree nut allergens. Methods 2014; 66:34-43. [DOI: 10.1016/j.ymeth.2013.07.033] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2012] [Revised: 07/15/2013] [Accepted: 07/19/2013] [Indexed: 01/08/2023] Open
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Is the determination of specific IgE against components using ISAC 112 a reproducible technique? PLoS One 2014; 9:e88394. [PMID: 24516646 PMCID: PMC3916438 DOI: 10.1371/journal.pone.0088394] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Accepted: 12/13/2013] [Indexed: 02/06/2023] Open
Abstract
Background The ImmunoCAP ISAC 112 is a fluoro-immunoassay that allows detection of specific IgE to 112 molecular components from 51 allergenic sources. We studied the reliability of this technique intra- and inter- assay, as well as inter-batch- and inter-laboratory-assay. Methods Twenty samples were studied, nineteen sera from polysensitized allergic patients, and the technique calibrator provided by the manufacturer (CTR02). We measured the sIgE from CTR02 and three patients' sera ten times in the same and in different assays. Furthermore, all samples were tested in two laboratories and with two batches of ISAC kit. To evaluate the accuracy of ISAC 112, we contrasted the determinations of CTR02 calibrator with their expected values by T Student test. To analyse the precision, we calculated the coefficient of variation (CV) of the 15 allergens that generate the calibration curve, and to analyse the repeatability and the reproducibility, we calculated the intraclass coefficient correlation (ICC) to each allergen. Results The results obtained for CTR02 were similar to those expected in 7 of 15 allergens that generate the calibration curve, whereas in 8 allergens the results showed significant differences. The mean CV obtained in the CTR02 determinations was of 9.4%, and the variability of sera from patients was of 22.9%. The agreement in the intra- and inter-assay analysis was very good to 94 allergens and good to one. In the inter-batch analyse, we obtained a very good agreement to 82 allergens, good to 14, moderate to 5 allergens, poor to one, and bad to 1 allergen. In the inter-laboratory analyse, we obtained a very good agreement to 73 allergens, good to 22, moderate to 6 and poor to two allergens. Conclusion The allergen microarray immunoassay, ISAC 112, is a repeatable and reproducible in vitro diagnostic tool for determination of sIgE beyond the own laboratory.
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Anaphylaxis to plant-foods and pollen allergens in patients with lipid transfer protein syndrome. Curr Opin Allergy Clin Immunol 2014; 13:379-85. [PMID: 23426007 DOI: 10.1097/aci.0b013e32835f5b07] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
PURPOSE OF REVIEW Nonspecific lipid transfer protein (LTP) is the main cause of primary food allergy in adults living in the Mediterranean area. The way allergic patients get sensitized to this protein is all but established, and the clinical expression of sensitization is extremely variable, ranging from long-lasting symptomless sensitization to severe anaphylaxis. Such variability is seemingly due to the presence/absence of a number of cofactors. RECENT FINDINGS The possibility that LTP sensitization occurs via the inhalation of LTP-containing pollen particles seems unlikely; in contrast, peach particles containing the protein seem able to sensitize both via the airways and the skin. Cosensitization to pollen allergens as well as to labile plant food allergens makes LTP allergy syndrome less severe. In some LTP sensitized subjects clinical food allergy occurs only in the presence of cofactors such as exercise, NSAIDs, or chronic urticaria. SUMMARY Lipid transfer protein allergy syndrome shows some peculiarities that are unique in the primary food allergy panorama: geographical distribution, frequent asymptomatic sensitization, frequent need for cofactors, and reduced severity when pollen allergy is present. Future studies will have to address these points as the results may have favorable effects on other, more severe, types of food allergy.
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Gómez-Casado C, Garrido-Arandia M, Gamboa P, Blanca-López N, Canto G, Varela J, Cuesta-Herranz J, Pacios LF, Díaz-Perales A, Tordesillas L. Allergenic characterization of new mutant forms of Pru p 3 as new immunotherapy vaccines. Clin Dev Immunol 2013; 2013:385615. [PMID: 24324505 PMCID: PMC3845429 DOI: 10.1155/2013/385615] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Accepted: 09/12/2013] [Indexed: 01/08/2023]
Abstract
Nowadays, treatment of food allergy only considered the avoidance of the specific food. However, the possibility of cross-reactivity makes this practice not very effective. Immunotherapy may exhibit as a good alternative to food allergy treatment. The use of hypoallergenic molecules with reduced IgE binding capacity but with ability to stimulate the immune system is a promising tool which could be developed for immunotherapy. In this study, three mutants of Pru p 3, the principal allergen of peach, were produced based on the described mimotope and T cell epitopes, by changing the specific residues to alanine, named as Pru p 3.01, Pru p 3.02, and Pru p 3.03. Pru p 3.01 showed very similar allergenic activity as the wild type by in vitro assays. However, Pru p 3.02 and Pru p 3.03 presented reduced IgE binding with respect to the native form, by in vitro, ex vivo, and in vivo assays. In addition, Pru p 3.03 had affected the IgG4 binding capacity and presented a random circular dichroism, which was reflected in the nonrecognition by specific antibodies anti-Pru p 3. Nevertheless, both Pru p 3.02 and Pru p 3.03 maintained the binding to IgG1 and their ability to activate T lymphocytes. Thus, Pru p 3.02 and Pru p 3.03 could be good candidates for potential immunotherapy in peach-allergic patients.
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Affiliation(s)
- C. Gómez-Casado
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Campus de Montegancedo, Pozuelo de Alarcón, 28223 Madrid, Spain
| | - M. Garrido-Arandia
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Campus de Montegancedo, Pozuelo de Alarcón, 28223 Madrid, Spain
| | - P. Gamboa
- Servicio de Alergia, Hospital de Basurto, Bilbao, Spain
| | | | - G. Canto
- Servicio de Alergia, Hospital Infanta Leonor, Madrid, Spain
| | - J. Varela
- Servicio de Quimica de Proteinas, Centro de Investigaciones Biologicas, CSIC, Madrid, Spain
| | | | - L. F. Pacios
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Campus de Montegancedo, Pozuelo de Alarcón, 28223 Madrid, Spain
- Departamento de Biotecnología, E.T.S. Ingenieros de Montes, UPM, Madrid, Spain
| | - A. Díaz-Perales
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Campus de Montegancedo, Pozuelo de Alarcón, 28223 Madrid, Spain
| | - L. Tordesillas
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Campus de Montegancedo, Pozuelo de Alarcón, 28223 Madrid, Spain
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Sánchez-López J, Tordesillas L, Pascal M, Muñoz-Cano R, Garrido M, Rueda M, Vilella R, Valero A, Díaz-Perales A, Picado C, Bartra J. Role of Art v 3 in pollinosis of patients allergic to Pru p 3. J Allergy Clin Immunol 2013; 133:1018-25. [PMID: 24080266 DOI: 10.1016/j.jaci.2013.08.005] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2013] [Revised: 08/13/2013] [Accepted: 08/14/2013] [Indexed: 10/26/2022]
Abstract
BACKGROUND Food allergy caused by lipid transfer protein (LTP) from peach (Pru p 3) is frequently associated with sensitization to mugwort LTP (Art v 3). Although in vitro cross-reactivity is already well known, it has yet to be elucidated whether a pollen LTP can induce rhinitis. OBJECTIVE The aim of this study was to investigate whether mugwort LTP could elicit respiratory symptoms and whether a primary food LTP allergy could lead to a respiratory allergy. METHODS Patients with confirmed Pru p 3 allergy and control subjects were selected. Immediate responses to nasal allergen provocation tests (NAPTs) with Art v 3, Pru p 3, and mugwort were assessed by using the visual analog scale score, total nasal symptom score, and acoustic rhinometry. Tryptase and cysteinyl leukotriene (cysLT) levels were measured in nasal lavage fluid. Immunoblotting, ELISAs, and ELISA inhibition assays were also performed. RESULTS Fifteen patients and 9 control subjects were selected. NAPT results with Art v 3 and Pru p 3 showed significant changes in acoustic rhinometry, visual analog scale scores, total nasal symptom scores, and cysLT levels (P < .001). Tryptase levels were only increased in NAPTs with Pru p 3. NAPTs with mugwort were used in those patients who were only sensitized to Art v 3, with similar results (P < .05). No significant changes were detected in control subjects. CONCLUSION The results demonstrated that a pollen LTP can elicit rhinitis in sensitized patients. Findings also suggest that a primary sensitization to Pru p 3 can lead to a respiratory allergy through cross-reactivity.
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Affiliation(s)
- Jaime Sánchez-López
- Unitat d'Al·lèrgia, Institut Clínic del Tòrax (ICT), Hospital Clinic, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona, Barcelona, Spain.
| | - Leticia Tordesillas
- Centro de Biotecnología y Genómica de Plantas (CBGP), Universidad Politécnica de Madrid, Campus Montegancedo, Madrid, Spain
| | - Mariona Pascal
- Servei d'Immunologia, Centre de Diagnòstic Biomèdic (CDB), Hospital Clinic, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Rosa Muñoz-Cano
- Unitat d'Al·lèrgia, Institut Clínic del Tòrax (ICT), Hospital Clinic, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona, Barcelona, Spain
| | - María Garrido
- Centro de Biotecnología y Genómica de Plantas (CBGP), Universidad Politécnica de Madrid, Campus Montegancedo, Madrid, Spain
| | - Maria Rueda
- Unitat d'Al·lèrgia, Institut Clínic del Tòrax (ICT), Hospital Clinic, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona, Barcelona, Spain
| | - Ramón Vilella
- Servei d'Immunologia, Centre de Diagnòstic Biomèdic (CDB), Hospital Clinic, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Antonio Valero
- Unitat d'Al·lèrgia, Institut Clínic del Tòrax (ICT), Hospital Clinic, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona, Barcelona, Spain
| | - Araceli Díaz-Perales
- Centro de Biotecnología y Genómica de Plantas (CBGP), Universidad Politécnica de Madrid, Campus Montegancedo, Madrid, Spain
| | - César Picado
- Unitat d'Al·lèrgia, Institut Clínic del Tòrax (ICT), Hospital Clinic, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona, Barcelona, Spain
| | - Joan Bartra
- Unitat d'Al·lèrgia, Institut Clínic del Tòrax (ICT), Hospital Clinic, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona, Barcelona, Spain
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Gadermaier G, Hauser M, Ferreira F. Allergens of weed pollen: an overview on recombinant and natural molecules. Methods 2013; 66:55-66. [PMID: 23806644 DOI: 10.1016/j.ymeth.2013.06.014] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2012] [Accepted: 06/13/2013] [Indexed: 12/16/2022] Open
Abstract
Weeds represent a botanically unrelated group of plants that usually lack commercial or aesthetical value. Pollen of allergenic weeds are able to trigger type I reactions in allergic patients and can be found in the plant families of Asteraceae, Amaranthaceae, Plantaginaceae, Urticaceae, and Euphorbiaceae. To date, 34 weed pollen allergens are listed in the IUIS allergen nomenclature database, which were physicochemically and immunologically characterized to varying degrees. Relevant allergens of weeds belong to the pectate lyase family, defensin-like family, Ole e 1-like family, non-specific lipid transfer protein 1 family and the pan-allergens profilin and polcalcins. This review provides an overview on weed pollen allergens primarily focusing on the molecular level. In particular, the characteristics and properties of purified recombinant allergens and hypoallergenic derivatives are described and their potential use in diagnosis and therapy of weed pollen allergy is discussed.
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Affiliation(s)
- Gabriele Gadermaier
- Christian Doppler Laboratory for Allergy Diagnosis and Therapy, Department of Molecular Biology, University of Salzburg, Salzburg, Austria.
| | - Michael Hauser
- Christian Doppler Laboratory for Allergy Diagnosis and Therapy, Department of Molecular Biology, University of Salzburg, Salzburg, Austria
| | - Fatima Ferreira
- Christian Doppler Laboratory for Allergy Diagnosis and Therapy, Department of Molecular Biology, University of Salzburg, Salzburg, Austria
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Callero A, Perez E, Ledesma A, Martinez-Tadeo JA, Hernandez G, Rodríguez-Plata E, Garcia-Robaina JC. A case report of bell pepper anaphylaxis: could 1, 3-β-glucanase be the culprit allergen? Ann Allergy Asthma Immunol 2013. [PMID: 23176894 DOI: 10.1016/j.anai.2012.10.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Recently introduced foods as new allergenic sources: Sensitisation to Goji berries (Lycium barbarum). Food Chem 2013. [DOI: 10.1016/j.foodchem.2012.10.005] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Pascal M, Muñoz-Cano R, Reina Z, Palacín A, Vilella R, Picado C, Juan M, Sánchez-López J, Rueda M, Salcedo G, Valero A, Yagüe J, Bartra J. Lipid transfer protein syndrome: clinical pattern, cofactor effect and profile of molecular sensitization to plant-foods and pollens. Clin Exp Allergy 2013; 42:1529-39. [PMID: 22994350 DOI: 10.1111/j.1365-2222.2012.04071.x] [Citation(s) in RCA: 127] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Multiple plant-food sensitizations with a complex pattern of clinical manifestations are a common feature of lipid transfer protein (LTP)-allergic patients. Component-resolved diagnosis permits the diagnosis of the allergen sensitization profile. OBJECTIVE We sought to clinically characterize and describe the plant-food and pollen molecular sensitization profile in patients with LTP syndrome. METHODS Forty-five subjects were recruited, after being diagnosed with multiple plant-food allergies sensitized to LTP, but not to any other plant-food allergen, according to the molecular allergen panel tested (Pru p 3 (LTP), Pru p 1 (Bet v 1-like), Pru p 4 (profilin) and those included in a commercial microarray of 103 allergenic components). IgE-mediated food-allergy symptoms and pollinosis were collected. Patients were skin prick tested with a plant-food and pollens panel, and specific IgE to Tri a 14 was evaluated. RESULTS A heterogeneous group of plant-foods was involved in local and systemic symptoms: oral allergy syndrome (75.6%), urticaria (66.7%), gastrointestinal disorders (55.6%) and anaphylaxis (75.6%), 32.4% of which were cofactor dependent (Non-Steroidal Anti-inflammatory Drugs, exercise). All tested subjects were positive to peach and Pru p 3, Tri a 14 and to some of the LTPs included in the microarray. Pollinosis was diagnosed in 75.6% of subjects, with a broad spectrum of pollen and pollen-allergen sensitization. Plane tree and mugwort were the statistically significant pollens associated with Pru p 3. CONCLUSIONS AND CLINICAL RELEVANCE Several plant-foods, taxonomically unrelated, independent of peach involvement, are implicated in LTP syndrome. Local symptoms should be evaluated as a risk marker for anaphylaxis because they are frequently associated with cofactor-dependent anaphylaxis. The association of these symptoms with pollinosis, especially plane tree pollinosis, could be part of this syndrome in our area.
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Affiliation(s)
- M Pascal
- Servei d'Immunologia, Centre de Diagnòstic Biomèdic, Hospital Clínic, Barcelona, Spain
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Pauli G, Metz-Favre C. [Cross reactions between pollens and vegetable food allergens]. Rev Mal Respir 2013; 30:328-37. [PMID: 23664291 DOI: 10.1016/j.rmr.2012.10.633] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2012] [Accepted: 10/26/2012] [Indexed: 12/16/2022]
Abstract
INTRODUCTION The association of food allergies and pollinosis are numerous, implicating tree, grass and weed pollens on one hand and on the other, several plant foods which after ingestion can induce an oral syndrome or more severe reactions such as urticaria, Quincke's edema, asthma and even anaphylactic shock. BACKGROUND The molecular basis of cross reactions between pollens and vegetable food allergens is increasingly understood. The principal allergens involved are those of the Bet v 1 family, and profilins found in all pollens as well as in many fruits and vegetables; these two groups of allergens are denatured by high temperatures and by gastric enzymes, in contrast to LTP, which is only found in weeds and some tree pollens. Other molecules can be involved in cross reactions such as Bet v 6 (an isoflavone reductase), 1 beta glucanases and thaumatine-like proteins. Inhibition experiments confirmed that the epitopes responsible for primary sensitization come mainly from pollen allergens; the cross-reactive molecular allergen is related to the geographic environment of the patients. CONCLUSIONS The practical aspects of managing these patients are underlined: explanations of co-sensitization, explanations for the lack of efficacy of some extracts, usefulness of a molecular diagnosis obtained either by CAP or microarray, prediction of severe clinical reactions induced by specific molecular allergens and the effectiveness of pollen immunotherapy on the cross-related food allergy.
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Affiliation(s)
- G Pauli
- Université de strasbourg, hôpital Civil, bâtiment ancienne ophtalmologie, 1, place de l'Hôpital, BP 426, 67091 Strasbourg cedex, France.
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Aranda A, Campo P, Palacin A, Doña I, Gomez-Casado C, Galindo L, Díaz-Perales A, Blanca M. Antigenic proteins involved in occupational rhinitis and asthma caused by obeche wood (Triplochiton scleroxylon). PLoS One 2013; 8:e53926. [PMID: 23349765 PMCID: PMC3551955 DOI: 10.1371/journal.pone.0053926] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2012] [Accepted: 12/04/2012] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Obeche wood dust is a known cause of occupational asthma where an IgE-mediated mechanism has been demonstrated. OBJECTIVE To characterize the allergenic profile of obeche wood dust and evaluate the reactivity of the proteins by in vitro, ex vivo and in vivo assays in carpenters with confirmed rhinitis and/or asthma MATERIALS AND METHODS An in-house obeche extract was obtained, and two IgE binding bands were purified (24 and 12 kDa) and sequenced by N-terminal identity. Specific IgE and IgG, basophil activation tests and skin prick tests (SPTs) were performed with whole extract and purified proteins. CCD binding was analyzed by ELISA inhibition studies. RESULTS Sixty-two subjects participated: 12 with confirmed occupational asthma/rhinitis (ORA+), 40 asymptomatic exposed (ORA-), and 10 controls. Of the confirmed subjects, 83% had a positive SPT to obeche. There was a 100% recognition by ELISA in symptomatic subjects vs. 30% and 10% in asymptomatic exposed subjects and controls respectively (p<0.05). Two new proteins were purified, a 24 kDa protein identified as a putative thaumatin-like protein and a 12 kDa gamma-expansin. Both showed allergenic activity in vitro, with the putative thaumatin being the most active, with 92% recognition by ELISA and 100% by basophil activation test in ORA+ subjects. Cross-reactivity due to CCD was ruled out in 82% of cases. CONCLUSIONS Two proteins of obeche wood were identified and were recognized by a high percentage of symptomatic subjects and by a small proportion of asymptomatic exposed subjects. Further studies are required to evaluate cross reactivity with other plant allergens.
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Affiliation(s)
- Ana Aranda
- Allergy Research Laboratory, Carlos Haya Hospital, Málaga, Spain
| | - Paloma Campo
- Unidad de Gestión Clínica Allergy, Carlos Haya Hospital, Málaga, Spain
| | - Arantxa Palacin
- Biotechnology Department, Center for Plant Biotechnology and Genomics, Pozuelo de Alarcon, Madrid, Spain
| | - Inmaculada Doña
- Unidad de Gestión Clínica Allergy, Carlos Haya Hospital, Málaga, Spain
| | - Cristina Gomez-Casado
- Biotechnology Department, Center for Plant Biotechnology and Genomics, Pozuelo de Alarcon, Madrid, Spain
| | - Luisa Galindo
- Unidad de Gestión Clínica Allergy, Carlos Haya Hospital, Málaga, Spain
| | - Araceli Díaz-Perales
- Biotechnology Department, Center for Plant Biotechnology and Genomics, Pozuelo de Alarcon, Madrid, Spain
| | - Miguel Blanca
- Unidad de Gestión Clínica Allergy, Carlos Haya Hospital, Málaga, Spain
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