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O'Malley A, Sankaran S, Carriuolo A, Khatri K, Kowal K, Chruszcz M. Structural homology of mite profilins to plant profilins is not indicative of allergic cross-reactivity. Biol Chem 2024; 405:367-381. [PMID: 38662449 DOI: 10.1515/hsz-2023-0366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 04/03/2024] [Indexed: 06/02/2024]
Abstract
Structural and allergenic characterization of mite profilins has not been previously pursued to a similar extent as plant profilins. Here, we describe structures of profilins originating from Tyrophagus putrescentiae (registered allergen Tyr p 36.0101) and Dermatophagoides pteronyssinus (here termed Der p profilin), which are the first structures of profilins from Arachnida. Additionally, the thermal stabilities of mite and plant profilins are compared, suggesting that the high number of cysteine residues in mite profilins may play a role in their increased stability. We also examine the cross-reactivity of plant and mite profilins as well as investigate the relevance of these profilins in mite inhalant allergy. Despite their high structural similarity to other profilins, mite profilins have low sequence identity with plant and human profilins. Subsequently, these mite profilins most likely do not display cross-reactivity with plant profilins. At the same time the profilins have highly conserved poly(l-proline) and actin binding sites.
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Affiliation(s)
- Andrea O'Malley
- Department of Biochemistry and Molecular Biology, 3078 Michigan State University , 603 Wilson Road, East Lansing, MI 48824, USA
- Department of Chemistry and Biochemistry, University of South Carolina, 631 Sumter Street, Columbia, SC 29208, USA
| | - Sahana Sankaran
- Department of Chemistry and Biochemistry, University of South Carolina, 631 Sumter Street, Columbia, SC 29208, USA
| | - Avery Carriuolo
- Department of Chemistry and Biochemistry, University of South Carolina, 631 Sumter Street, Columbia, SC 29208, USA
| | - Kriti Khatri
- Department of Biochemistry and Molecular Biology, 3078 Michigan State University , 603 Wilson Road, East Lansing, MI 48824, USA
- Department of Chemistry and Biochemistry, University of South Carolina, 631 Sumter Street, Columbia, SC 29208, USA
| | - Krzysztof Kowal
- Department of Experimental Allergology and Immunology, Medical University of Bialystok, Sklodowskiej-Curie 24, 15-276, Bialystok, Poland
| | - Maksymilian Chruszcz
- Department of Biochemistry and Molecular Biology, 3078 Michigan State University , 603 Wilson Road, East Lansing, MI 48824, USA
- Department of Chemistry and Biochemistry, University of South Carolina, 631 Sumter Street, Columbia, SC 29208, USA
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2
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Matricardi PM, Potapova E, Panetta V, Lidholm J, Mattsson L, Scala E, Bernardini R, Caffarelli C, Casani A, Cervone R, Chini L, Comberiati P, De Castro G, Miraglia Del Giudice M, Dello Iacono I, Di Rienzo Businco A, Gallucci M, Giannetti A, Moschese V, Varin E, Bianchi A, Calvani M, Frediani T, Macrì F, Maiello N, Paravati F, Pelosi U, Peroni D, Pingitore G, Tosca M, Zicari AM, Ricci G, Asero R, Tripodi S. IgE to cyclophilins in pollen-allergic children: Epidemiologic, clinical, and diagnostic relevance of a neglected panallergen. J Allergy Clin Immunol 2024; 153:1586-1596.e2. [PMID: 38513837 DOI: 10.1016/j.jaci.2024.01.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 12/25/2023] [Accepted: 01/26/2024] [Indexed: 03/23/2024]
Abstract
BACKGROUND Cyclophilins are ubiquitous panallergens whose epidemiologic, diagnostic, and clinical relevance is largely unknown and whose sensitization is rarely examined in routine allergy practice. OBJECTIVE We investigated the epidemiologic, diagnostic, and clinical relevance of cyclophilins in seasonal allergic rhinitis and its comorbidities. METHODS We examined a random sample of 253 (25%) of 1263 Italian children with seasonal allergic rhinitis from the Panallergens in Pediatrics (PAN-PED) cohort with characterized disease phenotypes. Nested studies of sensitization prevalence, correlation, and allergen extract inhibition were performed in patients sensitized to birch pollen extract but lacking IgE to Bet v 1/2/4 (74/1263) or with highest serum level of IgE to Bet v 1 (26/1263); and in patients with sensitization to various extracts (ragweed, mugwort, pellitory, Plantago, and plane tree), but not to their respective major allergenic molecule, profilins, and polcalcins. IgE to cyclophilin was detected with recombinant Bet v 7, and extract inhibition tests were performed with the same rBet v 7. RESULTS IgE to rBet v 7 was detected in 43 (17%) of 253 patients. It was associated with asthma (P < .028) and oral allergy syndrome (P < .017) in univariate but not multivariate analysis adjusted for IgE to profilins (Phl p 12), PR-10s (Bet v 1), and lipid transfer proteins (Pru p 3). IgE to rBet v 7 was also highly prevalent (47/74, 63%) among patients with unexplained sensitization to birch pollen extract. In patients with unexplained sensitization to ragweed, mugwort, pellitory, Plantago and plane tree pollen, the levels of IgE to those extracts correlated with the levels of IgE to rBet v 7, and they were also significantly inhibited by rBet v 7 (inhibition range 45%-74%). CONCLUSIONS IgE sensitization to cyclophilin is frequent in pollen-allergic patients living in temperate areas and can produce "false" positive outcomes in skin prick and IgE tests to pollen extracts. Molecular diagnostic guidelines should include this panallergen family.
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MESH Headings
- Humans
- Immunoglobulin E/immunology
- Immunoglobulin E/blood
- Child
- Rhinitis, Allergic, Seasonal/immunology
- Rhinitis, Allergic, Seasonal/epidemiology
- Rhinitis, Allergic, Seasonal/diagnosis
- Rhinitis, Allergic, Seasonal/blood
- Male
- Female
- Cyclophilins/immunology
- Allergens/immunology
- Pollen/immunology
- Adolescent
- Child, Preschool
- Antigens, Plant/immunology
- Italy/epidemiology
- Prevalence
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Affiliation(s)
- Paolo Maria Matricardi
- Charité-Universitätsmedizin Berlin, a corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, the Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine, Berlin, Germany; Institute of Allergology, Charité-Universitätsmedizin Berlin, Berlin, Germany; Department of Allergology and Immunology, Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Berlin, Germany.
| | - Ekaterina Potapova
- Charité-Universitätsmedizin Berlin, a corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, the Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine, Berlin, Germany
| | - Valentina Panetta
- Consultancy & Training, Biostatistics, L'altrastatistica, Rome, Italy
| | | | | | - Enrico Scala
- Clinical and Laboratory Molecular Allergy Unit, IDI-IRCCS, Rome, Italy
| | | | - Carlo Caffarelli
- Department of Medicine and Surgery, Clinica Pediatrica, University of Parma, Parma, Italy
| | | | - Rosa Cervone
- Pediatric Unit, San Giuseppe Hospital, Empoli, Italy
| | - Loredana Chini
- UOSD di Immunopatologia ed Allergologia Pediatrica, Policlinico Tor Vergata, Università di Roma Tor Vergata, Rome, Italy
| | - Pasquale Comberiati
- Department of Clinical and Experimental Medicine, Section of Paediatrics, University of Pisa, Pisa, Italy
| | | | - Michele Miraglia Del Giudice
- Dipartimento della Donna, del Bambino e di Chirurgia Generale e Specialistica, Università della Campania Luigi Vanvitelli, Naples, Italy
| | | | | | - Marcella Gallucci
- Pediatric Unit, IRCCS Azienda Ospedaliero, Universitaria di Bologna, Bologna, Italy
| | - Arianna Giannetti
- Pediatric Intermediate Care Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Viviana Moschese
- UOSD di Immunopatologia ed Allergologia Pediatrica, Policlinico Tor Vergata, Università di Roma Tor Vergata, Rome, Italy
| | - Elena Varin
- Allergology Service, San Carlo Clinic, Paderno Dugnano, Milan, Italy
| | | | - Mauro Calvani
- Pediatric Unit, San Camillo Forlanini Hospital, Rome, Italy
| | | | | | - Nunzia Maiello
- Dipartimento della Donna, del Bambino e di Chirurgia Generale e Specialistica, Università della Campania Luigi Vanvitelli, Naples, Italy
| | | | | | - Diego Peroni
- Pediatric Section, Department of Life and Reproduction Sciences, University of Verona, Verona, Italy
| | | | - Mariangela Tosca
- Pulmonary Disease and Allergy Unit, G. Gaslini Hospital, Genoa, Italy
| | | | - Giampaolo Ricci
- Pediatric Unit, IRCCS Azienda Ospedaliero, Universitaria di Bologna, Bologna, Italy
| | - Riccardo Asero
- Ambulatorio di Allergologia, Clinica San Carlo, Paderno Dugnano, Italy
| | - Salvatore Tripodi
- Pediatric Department and Pediatric Allergology Unit, Sandro Pertini Hospital, Rome, Italy
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3
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Moya B, Dieguez MC, Crespo JF, Cabanillas B. Food Allergens of Plant and Animal Origin: Classification, Characteristics, and Properties. Methods Mol Biol 2024; 2717:1-14. [PMID: 37737974 DOI: 10.1007/978-1-0716-3453-0_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/23/2023]
Abstract
Food allergy is an adverse immune response to specific foods that can be either IgE-mediated or non-IgE mediated. The causes of IgE-mediated food allergy are multifactorial and involve genetic, dietary, and environmental factors. The prevalence of food allergy has increased over the last few decades, especially in urbanized, industrialized, and Westernized countries, and the epithelial barrier hypothesis has been recently suggested as a possible explanation for this increase. Food allergens of plant and animal origin are classified into a few families and superfamilies that are widely distributed and conserved. While it is known that food allergens share common properties, such as stability to enzymes and solubility, they also exhibit differential properties, and exceptions to the common characteristics exist. In recent years, novel characteristics of food allergens have been proposed based on their immunological properties and their ability to act as adjuvants or enhancers of the immune system.This chapter provides an overview of the current knowledge of food allergy, covering their prevalence, classification of food allergens from plant and animal origins, and recent advancements in the characterization of the properties of these allergens.
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Affiliation(s)
- Beatriz Moya
- Department of Allergy, Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), Madrid, Spain
| | - Maria Carmen Dieguez
- Department of Allergy, Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), Madrid, Spain
| | - Jesus F Crespo
- Department of Allergy, Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), Madrid, Spain
| | - Beatriz Cabanillas
- Department of Allergy, Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), Madrid, Spain.
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4
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Zhang Y, Che H, Li C, Jin T. Food Allergens of Plant Origin. Foods 2023; 12:foods12112232. [PMID: 37297475 DOI: 10.3390/foods12112232] [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: 04/15/2023] [Revised: 05/24/2023] [Accepted: 05/26/2023] [Indexed: 06/12/2023] Open
Abstract
This review presents an update on the physical, chemical, and biological properties of food allergens in plant sources, focusing on the few protein families that contribute to multiple food allergens from different species and protein families recently found to contain food allergens. The structures and structural components of the food allergens in the allergen families may provide further directions for discovering new food allergens. Answers as to what makes some food proteins allergens are still elusive. Factors to be considered in mitigating food allergens include the abundance of the protein in a food, the property of short stretches of the sequence of the protein that may constitute linear IgE binding epitopes, the structural properties of the protein, its stability to heat and digestion, the food matrix the protein is in, and the antimicrobial activity to the microbial flora of the human gastrointestinal tract. Additionally, recent data suggest that widely used techniques for mapping linear IgE binding epitopes need to be improved by incorporating positive controls, and methodologies for mapping conformational IgE binding epitopes need to be developed.
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Affiliation(s)
- Yuzhu Zhang
- US Department of Agriculture, Agricultural Research Service, Pacific West Area, Western Regional Research Center, 800 Buchanan Street, Albany, CA 94710, USA
| | - Huilian Che
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Caiming Li
- US Department of Agriculture, Agricultural Research Service, Pacific West Area, Western Regional Research Center, 800 Buchanan Street, Albany, CA 94710, USA
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi 214122, China
| | - Tengchuan Jin
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
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5
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Raith M, Swoboda I. Birch pollen-The unpleasant herald of spring. FRONTIERS IN ALLERGY 2023; 4:1181675. [PMID: 37255542 PMCID: PMC10225653 DOI: 10.3389/falgy.2023.1181675] [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: 03/07/2023] [Accepted: 04/24/2023] [Indexed: 06/01/2023] Open
Abstract
Type I respiratory allergies to birch pollen and pollen from related trees of the order Fagales are increasing in industrialized countries, especially in the temperate zone of the Northern hemisphere, but the reasons for this increase are still debated and seem to be multifaceted. While the most important allergenic molecules of birch pollen have been identified and characterized, the contribution of other pollen components, such as lipids, non-allergenic immunomodulatory proteins, or the pollen microbiome, to the development of allergic reactions are sparsely known. Furthermore, what also needs to be considered is that pollen is exposed to external influences which can alter its allergenicity. These external influences include environmental factors such as gaseous pollutants like ozone or nitrogen oxides or particulate air pollutants, but also meteorological events like changes in temperature, humidity, or precipitation. In this review, we look at the birch pollen from different angles and summarize current knowledge on internal and external influences that have an impact on the allergenicity of birch pollen and its interactions with the epithelial barrier. We focus on epithelial cells since these cells are the first line of defense in respiratory disease and are increasingly considered to be a regulatory tissue for the protection against the development of respiratory allergies.
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6
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Dramburg S, Hilger C, Santos AF, de Las Vecillas L, Aalberse RC, Acevedo N, Aglas L, Altmann F, Arruda KL, Asero R, Ballmer-Weber B, Barber D, Beyer K, Biedermann T, Bilo MB, Blank S, Bosshard PP, Breiteneder H, Brough HA, Bublin M, Campbell D, Caraballo L, Caubet JC, Celi G, Chapman MD, Chruszcz M, Custovic A, Czolk R, Davies J, Douladiris N, Eberlein B, Ebisawa M, Ehlers A, Eigenmann P, Gadermaier G, Giovannini M, Gomez F, Grohman R, Guillet C, Hafner C, Hamilton RG, Hauser M, Hawranek T, Hoffmann HJ, Holzhauser T, Iizuka T, Jacquet A, Jakob T, Janssen-Weets B, Jappe U, Jutel M, Kalic T, Kamath S, Kespohl S, Kleine-Tebbe J, Knol E, Knulst A, Konradsen JR, Korošec P, Kuehn A, Lack G, Le TM, Lopata A, Luengo O, Mäkelä M, Marra AM, Mills C, Morisset M, Muraro A, Nowak-Wegrzyn A, Nugraha R, Ollert M, Palosuo K, Pastorello EA, Patil SU, Platts-Mills T, Pomés A, Poncet P, Potapova E, Poulsen LK, Radauer C, Radulovic S, Raulf M, Rougé P, Sastre J, Sato S, Scala E, Schmid JM, Schmid-Grendelmeier P, Schrama D, Sénéchal H, Traidl-Hoffmann C, Valverde-Monge M, van Hage M, van Ree R, Verhoeckx K, Vieths S, Wickman M, Zakzuk J, Matricardi PM, Hoffmann-Sommergruber K. EAACI Molecular Allergology User's Guide 2.0. Pediatr Allergy Immunol 2023; 34 Suppl 28:e13854. [PMID: 37186333 DOI: 10.1111/pai.13854] [Citation(s) in RCA: 48] [Impact Index Per Article: 48.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 09/05/2022] [Indexed: 05/17/2023]
Abstract
Since the discovery of immunoglobulin E (IgE) as a mediator of allergic diseases in 1967, our knowledge about the immunological mechanisms of IgE-mediated allergies has remarkably increased. In addition to understanding the immune response and clinical symptoms, allergy diagnosis and management depend strongly on the precise identification of the elicitors of the IgE-mediated allergic reaction. In the past four decades, innovations in bioscience and technology have facilitated the identification and production of well-defined, highly pure molecules for component-resolved diagnosis (CRD), allowing a personalized diagnosis and management of the allergic disease for individual patients. The first edition of the "EAACI Molecular Allergology User's Guide" (MAUG) in 2016 rapidly became a key reference for clinicians, scientists, and interested readers with a background in allergology, immunology, biology, and medicine. Nevertheless, the field of molecular allergology is moving fast, and after 6 years, a new EAACI Taskforce was established to provide an updated document. The Molecular Allergology User's Guide 2.0 summarizes state-of-the-art information on allergen molecules, their clinical relevance, and their application in diagnostic algorithms for clinical practice. It is designed for both, clinicians and scientists, guiding health care professionals through the overwhelming list of different allergen molecules available for testing. Further, it provides diagnostic algorithms on the clinical relevance of allergenic molecules and gives an overview of their biology, the basic mechanisms of test formats, and the application of tests to measure allergen exposure.
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Affiliation(s)
- Stephanie Dramburg
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Christiane Hilger
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
| | - Alexandra F Santos
- Department of Women and Children's Health (Pediatric Allergy), School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom
- Peter Gorer Department of Immunobiology, School of Immunology and Microbial Sciences, King's College London, London, United Kingdom
- Children's Allergy Service, Evelina London, Guy's and St Thomas' Hospital, London, United Kingdom
| | | | - Rob C Aalberse
- Sanquin Research, Dept Immunopathology, University of Amsterdam, Amsterdam, The Netherlands
- Landsteiner Laboratory, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands
| | - Nathalie Acevedo
- Institute for Immunological Research, University of Cartagena, Cartagena de Indias, Colombia, Colombia
| | - Lorenz Aglas
- Department of Biosciences and Medical Biology, Paris Lodron University Salzburg, Salzburg, Austria
| | - Friedrich Altmann
- Department of Chemistry, University of Natural Resources and Life Sciences, Vienna, Austria
| | - Karla L Arruda
- Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Sao Paulo, Brasil, Brazil
| | - Riccardo Asero
- Ambulatorio di Allergologia, Clinica San Carlo, Paderno Dugnano, Italy
| | - Barbara Ballmer-Weber
- Klinik für Dermatologie und Allergologie, Kantonsspital St. Gallen, St. Gallen, Switzerland
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland
| | - Domingo Barber
- Institute of Applied Molecular Medicine Nemesio Diez (IMMAND), Department of Basic Medical Sciences, Facultad de Medicina, Universidad San Pablo CEU, CEU Universities, Madrid, Spain
- RETIC ARADyAL and RICORS Enfermedades Inflamatorias (REI), Madrid, Spain
| | - Kirsten Beyer
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Tilo Biedermann
- Department of Dermatology and Allergy Biederstein, School of Medicine, Technical University Munich, Munich, Germany
| | - Maria Beatrice Bilo
- Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, Ancona, Italy
- Allergy Unit Department of Internal Medicine, University Hospital Ospedali Riuniti di Ancona, Torrette, Italy
| | - Simon Blank
- Center of Allergy and Environment (ZAUM), Technical University of Munich, School of Medicine and Helmholtz Center Munich, German Research Center for Environmental Health, Munich, Germany
| | - Philipp P Bosshard
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland
| | - Heimo Breiteneder
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria
| | - Helen A Brough
- Department of Women and Children's Health (Pediatric Allergy), School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom
- Children's Allergy Service, Evelina London, Guy's and St Thomas' Hospital, London, United Kingdom
| | - Merima Bublin
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria
| | - Dianne Campbell
- Department of Allergy and Immunology, Children's Hospital at Westmead, Sydney Children's Hospitals Network, Sydney, New South Wales, Australia
- Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
| | - Luis Caraballo
- Institute for Immunological Research, University of Cartagena, Cartagena de Indias, Colombia, Colombia
| | - Jean Christoph Caubet
- Pediatric Allergy Unit, Department of Child and Adolescent, University Hospitals of Geneva, Geneva, Switzerland
| | - Giorgio Celi
- Centro DH Allergologia e Immunologia Clinica ASST- MANTOVA (MN), Mantova, Italy
| | | | - Maksymilian Chruszcz
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina, USA
| | - Adnan Custovic
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Rebecca Czolk
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Faculty of Science, Technology and Medicine, University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Janet Davies
- Queensland University of Technology, Centre for Immunology and Infection Control, School of Biomedical Sciences, Herston, Queensland, Australia
- Metro North Hospital and Health Service, Emergency Operations Centre, Herston, Queensland, Australia
| | - Nikolaos Douladiris
- Allergy Department, 2nd Paediatric Clinic, National and Kapodistrian University of Athens, Athens, Greece
| | - Bernadette Eberlein
- Department of Dermatology and Allergy Biederstein, School of Medicine, Technical University Munich, Munich, Germany
| | - Motohiro Ebisawa
- Clinical Research Center for Allergy and Rheumatology, National Hospital Organization, Sagamihara National Hospital, Kanagawa, Japan
| | - Anna Ehlers
- Chemical Biology and Drug Discovery, Utrecht University, Utrecht, The Netherlands
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
- Department of Immunology and Dermatology/ Allergology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Philippe Eigenmann
- Pediatric Allergy Unit, Department of Child and Adolescent, University Hospitals of Geneva, Geneva, Switzerland
| | - Gabriele Gadermaier
- Department of Biosciences and Medical Biology, Paris Lodron University Salzburg, Salzburg, Austria
| | - Mattia Giovannini
- Allergy Unit, Department of Pediatrics, Meyer Children's University Hospital, Florence, Italy
| | - Francisca Gomez
- Allergy Unit IBIMA-Hospital Regional Universitario de Malaga, Malaga, Spain
- Spanish Network for Allergy research RETIC ARADyAL, Malaga, Spain
| | - Rebecca Grohman
- NYU Langone Health, Department of Internal Medicine, New York, New York, USA
| | - Carole Guillet
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland
- Faculty of Medicine, University of Zurich, Zurich, Switzerland
| | - Christine Hafner
- Department of Dermatology, University Hospital St. Poelten, Karl Landsteiner University of Health Sciences, St. Poelten, Austria
| | - Robert G Hamilton
- Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Michael Hauser
- Department of Biosciences and Medical Biology, Paris Lodron University Salzburg, Salzburg, Austria
| | - Thomas Hawranek
- Department of Dermatology and Allergology, Paracelsus Private Medical University, Salzburg, Austria
| | - Hans Jürgen Hoffmann
- Institute for Clinical Medicine, Faculty of Health, Aarhus University, Aarhus, Denmark
- Department of Respiratory Diseases and Allergy, Aarhus University Hospital, Aarhus, Denmark
| | | | - Tomona Iizuka
- Laboratory of Protein Science, Graduate School of Life Science, Hokkaido University, Sapporo, Japan
| | - Alain Jacquet
- Department of Biochemistry, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Thilo Jakob
- Department of Dermatology and Allergology, University Medical Center, Justus Liebig University Gießen, Gießen, Germany
| | - Bente Janssen-Weets
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Odense Research Center for Anaphylaxis, University of Southern Denmark, Odense, Denmark
| | - Uta Jappe
- Division of Clinical and Molecular Allergology, Priority Research Area Asthma and Allergy, Research Center Borstel, Borstel, Germany
- Leibniz Lung Center, Airway Research Center North (ARCN), Member of the German Center for Lung Research, Germany
- Interdisciplinary Allergy Outpatient Clinic, Dept. of Pneumology, University of Lübeck, Lübeck, Germany
| | - Marek Jutel
- Department of Clinical Immunology, Wroclaw Medical University, Wroclaw, Poland
| | - Tanja Kalic
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria
- Department of Dermatology, University Hospital St. Poelten, Karl Landsteiner University of Health Sciences, St. Poelten, Austria
| | - Sandip Kamath
- Australian Institute of Tropical Health and Medicine, James Cook University, Townsville, Queensland, Australia
- Molecular Allergy Research Laboratory, College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, Queensland, Australia
| | - Sabine Kespohl
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr- Universität Bochum, Bochum, Germany
| | - Jörg Kleine-Tebbe
- Allergy & Asthma Center Westend, Outpatient Clinic and Clinical Research Center, Berlin, Germany
| | - Edward Knol
- Department of Immunology and Dermatology/ Allergology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - André Knulst
- Department of Immunology and Dermatology/ Allergology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Jon R Konradsen
- Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
- Pediatric Allergy and Pulmonology Unit at Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden
| | - Peter Korošec
- University Clinic of Respiratory and Allergic Diseases Golnik, Golnik, Slovenia
- Faculty of Pharmacy, University of Ljubljana, Ljubljana, Slovenia
| | - Annette Kuehn
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
| | - Gideon Lack
- Department of Women and Children's Health (Pediatric Allergy), School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom
- Peter Gorer Department of Immunobiology, School of Immunology and Microbial Sciences, King's College London, London, United Kingdom
- Children's Allergy Service, Evelina London, Guy's and St Thomas' Hospital, London, United Kingdom
| | - Thuy-My Le
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
- Department of Immunology and Dermatology/ Allergology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Andreas Lopata
- Australian Institute of Tropical Health and Medicine, James Cook University, Townsville, Queensland, Australia
- Molecular Allergy Research Laboratory, College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, Queensland, Australia
| | - Olga Luengo
- RETIC ARADyAL and RICORS Enfermedades Inflamatorias (REI), Madrid, Spain
- Allergy Section, Internal Medicine Department, Vall d'Hebron University Hospital, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Mika Mäkelä
- Division of Allergy, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
- Pediatric Department, Skin and Allergy Hospital, Helsinki University Central Hospital, Helsinki, Finland
| | | | - Clare Mills
- Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Manchester Institute of Biotechnology, The University of Manchester, Manchester, UK
| | | | - Antonella Muraro
- Food Allergy Referral Centre, Department of Woman and Child Health, Padua University Hospital, Padua, Italy
| | - Anna Nowak-Wegrzyn
- Division of Pediatric Allergy and Immunology, NYU Grossman School of Medicine, Hassenfeld Children's Hospital, New York, New York, USA
- Department of Pediatrics, Gastroenterology and Nutrition, Collegium Medicum, University of Warmia and Mazury, Olsztyn, Poland
| | - Roni Nugraha
- Molecular Allergy Research Laboratory, College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, Queensland, Australia
- Department of Aquatic Product Technology, Faculty of Fisheries and Marine Science, IPB University, Bogor, Indonesia
| | - Markus Ollert
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Odense Research Center for Anaphylaxis, University of Southern Denmark, Odense, Denmark
| | - Kati Palosuo
- Department of Allergology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | | | - Sarita Ulhas Patil
- Division of Rheumatology, Allergy and Immunology, Departments of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
- Division of Allergy and Immunology, Department of Pediatrics, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Thomas Platts-Mills
- Division of Allergy and Clinical Immunology, University of Virginia, Charlottesville, Virginia, USA
| | | | - Pascal Poncet
- Institut Pasteur, Immunology Department, Paris, France
- Allergy & Environment Research Team Armand Trousseau Children Hospital, APHP, Paris, France
| | - Ekaterina Potapova
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Lars K Poulsen
- Allergy Clinic, Department of Dermatology and Allergy, Copenhagen University Hospital-Herlev and Gentofte, Copenhagen, Denmark
| | - Christian Radauer
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria
| | - Suzana Radulovic
- Department of Women and Children's Health (Pediatric Allergy), School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom
- Children's Allergy Service, Evelina London, Guy's and St Thomas' Hospital, London, United Kingdom
| | - Monika Raulf
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr- Universität Bochum, Bochum, Germany
| | - Pierre Rougé
- UMR 152 PharmaDev, IRD, Université Paul Sabatier, Faculté de Pharmacie, Toulouse, France
| | - Joaquin Sastre
- Allergy Service, Fundación Jiménez Díaz; CIBER de Enfermedades Respiratorias (CIBERES); Faculty of Medicine, Universidad Autonoma de Madrid, Madrid, Spain
| | - Sakura Sato
- Allergy Department, 2nd Paediatric Clinic, National and Kapodistrian University of Athens, Athens, Greece
| | - Enrico Scala
- Clinical and Laboratory Molecular Allergy Unit - IDI- IRCCS, Fondazione L M Monti Rome, Rome, Italy
| | - Johannes M Schmid
- Department of Respiratory Diseases and Allergy, Aarhus University Hospital, Aarhus, Denmark
| | - Peter Schmid-Grendelmeier
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland
- Christine Kühne Center for Allergy Research and Education CK-CARE, Davos, Switzerland
| | - Denise Schrama
- Centre of Marine Sciences (CCMAR), Universidade do Algarve, Faro, Portugal
| | - Hélène Sénéchal
- Allergy & Environment Research Team Armand Trousseau Children Hospital, APHP, Paris, France
| | - Claudia Traidl-Hoffmann
- Christine Kühne Center for Allergy Research and Education CK-CARE, Davos, Switzerland
- Department of Environmental Medicine, Faculty of Medicine, University of Augsburg, Augsburg, Germany
| | - Marcela Valverde-Monge
- Allergy Service, Fundación Jiménez Díaz; CIBER de Enfermedades Respiratorias (CIBERES); Faculty of Medicine, Universidad Autonoma de Madrid, Madrid, Spain
| | - Marianne van Hage
- Department of Medicine Solna, Division of Immunology and Allergy, Karolinska Institutet, Stockholm, Sweden
- Department of Clinical Immunology and Transfusion Medicine, Karolinska University Hospital, Stockholm, Sweden
| | - Ronald van Ree
- Department of Experimental Immunology and Department of Otorhinolaryngology, Amsterdam University Medical Centers, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Kitty Verhoeckx
- Department of Immunology and Dermatology/ Allergology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Stefan Vieths
- Division of Allergology, Paul-Ehrlich-Institut, Langen, Germany
| | - Magnus Wickman
- Department of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Josefina Zakzuk
- Institute for Immunological Research, University of Cartagena, Cartagena de Indias, Colombia, Colombia
| | - Paolo M Matricardi
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine, Charité Universitätsmedizin Berlin, Berlin, Germany
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7
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Hofer F, Fischer AL, Kamenik AS, Waibl F, Fernández-Quintero ML, Liedl KR. pH-dependent structural diversity of profilin allergens determines thermal stability. FRONTIERS IN ALLERGY 2022; 3:1007000. [PMID: 36324331 PMCID: PMC9618696 DOI: 10.3389/falgy.2022.1007000] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 09/20/2022] [Indexed: 11/05/2022] Open
Abstract
The family of profilin allergens is a common class of proteins found in plants, viruses and various eukaryotes including mammals. Profilins are characterized by an evolutionary conserved structural fold, which is responsible for their cross-reactive nature of Immunoglobulin E (IgE) antibodies. Despite their high overall structural similarity, they exhibit substantial differences in their biophysical properties, such as thermal and pH stability. To understand the origin of these functional differences of Amb a 8, Art v 4 and Bet v 2, we performed constant pH molecular dynamics simulation in combination with Gaussian accelerated MD simulations. Depending on the respective protonation at different pH levels, we find distinct differences in conformational flexibility, which are consistent with experimentally determined melting temperatures. These variations in flexibility are accompanied by ensemble shifts in the conformational landscape and quantified and localized by residue-wise B-factors and dihedral entropies. These findings strengthen the link between flexibility of profilin allergens and their thermal stability. Thus, our results clearly show the importance of considering protonation dependent conformational ensembles in solution to elucidate biophysical differences between these structurally similar allergens.
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8
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Huerta-Ocampo JÁ, Batista-Roche LG, Morales-Amparano MB, Robles-Burgueño MDR, Ramos-Clamont Montfort G, Vázquez-Moreno L, Ramírez-Jiménez F, Terán LM. Identification of Allergenic Proteins in Velvet Mesquite ( Prosopis velutina) Pollen: An Immunoproteomics Approach. Life (Basel) 2022; 12:1421. [PMID: 36143457 PMCID: PMC9502229 DOI: 10.3390/life12091421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 08/25/2022] [Accepted: 08/26/2022] [Indexed: 11/16/2022] Open
Abstract
Velvet mesquite (Prosopis velutina) is a native legume of the southwestern United States and northwestern Mexico, contributing significantly to the desert ecosystem and playing key ecological roles. It is also an important cause of allergic respiratory disease widely distributed in the Sonoran, Chihuahuan, and Mojave Deserts. However, no allergens from velvet mesquite pollen have been identified to date. Pollen proteins were extracted and analyzed by one- and two-dimensional electrophoresis and immunoblotting using a pool of 11 sera from mesquite-sensitive patients as the primary antibody. IgE-recognized protein spots were identified by mass spectrometry and bioinformatics analysis. Twenty-four unique proteins, including proteins well known as pollen, food, airway, or contact allergens and four proteins not previously reported as pollen allergens, were identified. This is the first report on allergenic proteins in velvet mesquite pollen. These findings will contribute to the development of specific diagnosis and treatment of mesquite pollen allergy.
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Affiliation(s)
- José Ángel Huerta-Ocampo
- Consejo Nacional de Ciencia y Tecnología, Mexico City 03940, Mexico
- Centro de Investigación en Alimentación y Desarrollo, A.C. Hermosillo, Hermosillo 83304, Mexico
| | | | | | | | | | - Luz Vázquez-Moreno
- Centro de Investigación en Alimentación y Desarrollo, A.C. Hermosillo, Hermosillo 83304, Mexico
| | - Fernando Ramírez-Jiménez
- Instituto Nacional de Enfermedades Respiratorias “Ismael Cosío Villegas”, Mexico City 14080, Mexico
| | - Luis M. Terán
- Instituto Nacional de Enfermedades Respiratorias “Ismael Cosío Villegas”, Mexico City 14080, Mexico
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9
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Paull RE, Zerpa‐Catanho D, Chen NJ, Uruu G, Wai CMJ, Kantar M. Taro raphide-associated proteins: Allergens and crystal growth. PLANT DIRECT 2022; 6:e443. [PMID: 36091877 PMCID: PMC9440338 DOI: 10.1002/pld3.443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 07/15/2022] [Accepted: 08/05/2022] [Indexed: 06/15/2023]
Abstract
Calcium oxalate raphide crystals are found in bundles in intravacuolar membrane chambers of specialized idioblasts cells of most plant families. Aroid raphides are proposed to cause acridity in crops such as taro (Colocasia esculenta (L.) Schott). Acridity is irritation that causes itchiness and pain when raw/insufficiently cooked tissues are eaten. Since raphides do not always cause acridity and since acridity can be inactivated by cooking and/or protease treatment, it is possible that a toxin or allergen-like compound is associated with the crystals. Using two-dimensional (2D) gel electrophoresis and mass spectrometry (MS) peptide sequencing of selected peptides from purified raphides and taro apex transcriptome sequencing, we showed the presence on the raphides of peptides normally associated with mitochrondria (ATP synthase), chloroplasts (chaperonin ~60 kDa), cytoplasm (actin, profilin), and vacuole (V-type ATPase) that indicates a multistage biocrystallation process ending with possible invagination of the tonoplast and addition of mucilage that may be derived from the Golgi. Actin might play a crucial role in the generation of the needle-like raphides. One of the five raphide profilins genes was highly expressed in the apex and had a 17-amino acid insert that significantly increased that profilin's antigenic epitope peak. A second profilin had a 2-amino acid insert and also had a greater B-cell epitope prediction. Taro profilins showed 83% to 92% similarity to known characterized profilins. Further, commercial allergen test strips for hazelnuts, where profilin is a secondary allergen, have potential for screening in a taro germplasm to reduce acridity and during food processing to avoid overcooking.
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Affiliation(s)
- Robert E. Paull
- Tropical Plant and Soil SciencesUniversity of Hawaii at ManoaHonoluluHIUSA
| | | | - Nancy J. Chen
- Tropical Plant and Soil SciencesUniversity of Hawaii at ManoaHonoluluHIUSA
| | - Gail Uruu
- Tropical Plant and Soil SciencesUniversity of Hawaii at ManoaHonoluluHIUSA
| | | | - Michael Kantar
- Tropical Plant and Soil SciencesUniversity of Hawaii at ManoaHonoluluHIUSA
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10
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García-Ramírez B, Mares-Mejía I, Rodríguez-Hernández A, Cano-Sánchez P, Torres-Larios A, Ortega E, Rodríguez-Romero A. A native IgE in complex with profilin provides insights into allergen recognition and cross-reactivity. Commun Biol 2022; 5:748. [PMID: 35902770 PMCID: PMC9334453 DOI: 10.1038/s42003-022-03718-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 07/14/2022] [Indexed: 12/01/2022] Open
Abstract
Allergies have become a rising health problem, where plentiful substances can trigger IgE-mediated allergies in humans. While profilins are considered minor allergens, these ubiquitous proteins are primary molecules involved in cross-reactivity and pollen-food allergy syndrome. Here we report the first crystal structures of murine Fab/IgE, with its chains naturally paired, in complex with the allergen profilin from Hevea brasiliensis (Hev b 8). The crystallographic models revealed that the IgE's six complementarity-determining regions (CDRs) interact with the allergen, comprising a rigid paratope-epitope surface of 926 Å2, which includes an extensive network of interactions. Interestingly, we also observed previously unreported flexibility at Fab/IgE's elbow angle, which did not influence the shape of the paratope. The Fab/IgE exhibits a high affinity for Hev b 8, even when using 1 M NaCl in BLI experiments. Finally, based on the encouraging cross-reactivity assays using two mutants of the maize profilin (Zea m 12), this antibody could be a promising tool in IgE engineering for diagnosis and research applications.
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Affiliation(s)
- Benjamín García-Ramírez
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Cd. Universitaria, Coyoacán, Ciudad de México, 04510, Mexico
| | - Israel Mares-Mejía
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Cd. Universitaria, Coyoacán, Ciudad de México, 04510, Mexico
| | - Annia Rodríguez-Hernández
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Cd. Universitaria, Coyoacán, Ciudad de México, 04510, Mexico
| | - Patricia Cano-Sánchez
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Cd. Universitaria, Coyoacán, Ciudad de México, 04510, Mexico
| | - Alfredo Torres-Larios
- Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Circuito Exterior, Cd. Universitaria, Coyoacán, Ciudad de México, 04510, Mexico
| | - Enrique Ortega
- Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Circuito Exterior, Cd. Universitaria, Coyoacán, Ciudad de México, 04510, Mexico
| | - Adela Rodríguez-Romero
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Cd. Universitaria, Coyoacán, Ciudad de México, 04510, Mexico.
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11
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Three patterns of sensitization to mugwort, timothy, birch and their major allergen components revealed by Latent class analysis. Mol Immunol 2022; 145:59-66. [PMID: 35298938 DOI: 10.1016/j.molimm.2022.03.009] [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: 12/06/2021] [Revised: 03/01/2022] [Accepted: 03/03/2022] [Indexed: 11/23/2022]
Abstract
BACKGROUND Mugwort, timothy, and birch are commonly spread pollen allergens across China. Although several studies have described the rates of sensitization to mugwort, timothy, and birch in China, most of them just on specific whole-allergen extracts but little was known about the co-sensitization characteristics of its allergen components. This study aimed to explore the patterns of sensitization to mugwort, timothy, birch, and their major allergen components. METHOD Serum specific IgE (sIgE) levels of allergen components of mugwort, timothy, birch, and cross-reactive carbohydrate determinants (CCD) were detected in 160 patients whose serum showed positive results to at least one of mugwort, timothy, and birch allergens via EUROBlotMaster system. Skin prick testing was utilized to assess the allergic reaction of grass, weed, and tree allergens. Latent class analysis was used to identify underlying patterns of sensitization to a series of allergen components and their corresponding extracts. RESULTS 88.8% of patients with allergic rhinitis and/or asthma were positive for mugwort-sIgE, 30% for timothy-sIgE, and 32.5% for birch-sIgE. By using the LCA model, three sensitization patterns as "Mugwort, Art v 4, Bet v 2 and Phl p 12 co-sensitized", "Timothy, mugwort, and CCD co-sensitized", "Mugwort and Art v 1 co-sensitized" were revealed based on optimal statistical fit in this study. Compared with other clusters, participants in "Mugwort, Art v 4, Bet v 2 and Phl p 12 co-sensitized" pattern were associated with higher sensitization rates of common grass and tree pollens allergen. The spearman's coefficient between CCD and timothy was larger than the corresponding values of CCD with mugwort or birch. CONCLUSION CCD and profilin, as minor allergens in pollens, were associated with other pollen sIgE false positives presumably due to cross-reactivity. Patients sensitized with profilin had a significantly higher risk of sensitization to other pollens.
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12
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Singh B, Ahanathapillai V, Sharma NR, Jan S, Roy A, Upadhyay AK. Structural insights into the amino acid usage variations in the profilin gene family. Amino Acids 2022; 54:411-419. [PMID: 35192061 DOI: 10.1007/s00726-022-03138-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 02/06/2022] [Indexed: 11/01/2022]
Abstract
Profilin protein is present ubiquitously in all forms of life and is allied with allergic responses among atopic individuals. In addition to this, profilins from various food sources are also associated with IgE cross-reactivity and are thus classified as pan-allergens. The present study unravels the physicochemical basis of differential amino acid usage patterns observed in the profilin gene family. Correspondence analysis based on amino acid usage of allergen and non-allergen profilins revealed discrete clusters among them, signifying differential patterns of amino acid usage. The amino acids, namely methionine, proline, histidine, glutamine, glutamic acid, tryptophan and glycine were found to be more frequently utilised by the allergen profilins compared to the non-allergens. Correlation analysis revealed that physicochemical features like protein disorder, trypsin digestion and solubility differed significantly among the allergen and non-allergen profilins, thus supporting the observations from correspondence analysis. In addition, comprehensive sequence analysis revealed that the allergen profilins possess conserved motifs which may correlate with their distinct physicochemical features. An in-depth structural analysis revealed that the over-represented amino acids in allergen profilins have a propensity of being exposed on the surface, which may be attributed to their distinct allergenic characteristics. The distinguished physicochemical features observed among allergens and non-allergens can be employed as descriptors to develop machine learning-based allergenicity prediction models.
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Affiliation(s)
- Bhupender Singh
- School of Bioengineering and Biosciences, Lovely Professional University, Jalandhar, Punjab, 144001, India.
| | - Vijayalakshmi Ahanathapillai
- Biomedical Engineering, School of Health Sciences, Birmingham City University, Seacole Building, 32 Westbourne Road, Birmingham, B15 3TN, UK
| | - Neeta Raj Sharma
- School of Bioengineering and Biosciences, Lovely Professional University, Jalandhar, Punjab, 144001, India
| | - Sadaf Jan
- School of Bioengineering and Biosciences, Lovely Professional University, Jalandhar, Punjab, 144001, India
| | - Ayan Roy
- School of Bioengineering and Biosciences, Lovely Professional University, Jalandhar, Punjab, 144001, India. .,Center for Infection and Immunity, Columbia University, New York, 10032, USA.
| | - Atul Kumar Upadhyay
- Department of Biotechnology, Thapar Institute of Engineering and Technology, Patiala, Punjab, 147004, India
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13
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Somoza ML, Prieto-Moreno Pfeifer A, Martín-Pedraza L, Victorio Puche L, Esteban Rodríguez A, Blanca-López N, Eva Fernández González A, Fernández-Caldas E, Morán Morales M, Fernández-Sánchez FJ, López Sánchez JD, Garrido-Lestache JLS, Canto G, Blanca M. Skin Testing With Peach Peel Extract Versus Serum IgE to Pru p 3 as a Stronger Predictor of Peach-Induced Anaphylaxis. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2021; 13:922-932. [PMID: 34734509 PMCID: PMC8569022 DOI: 10.4168/aair.2021.13.6.922] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 07/25/2021] [Accepted: 08/17/2021] [Indexed: 11/20/2022]
Abstract
The most important peach fruit allergen is Pru p 3, followed by Pru p 1, Pru p 4, and Pru p 7. We aimed to assess their role in subjects with peach fruit-induced allergy (anaphylaxis and OAS) and compare skin prick tests (SPT) vs. specific immunoglobulin E (sIgE) for predicting anaphylaxis. We also selected a control group. SPT included prevalent inhalant and plant food allergens plus peach peel extract. The sIgE to Pru p 1, Pru p 3, Pru p 4, and Pru p 7 were quantified. Compared with controls (n = 42), cases (n = 41) were younger (P = 0.003), more frequently female (P < 0.05) and had higher SPT positivity to peach peel (44% vs. 2.4%, P < 0.0001). There were significant differences in sensitization to several pollens: Olea europaea, Artemisia vulgaris, Prunus persica, Platanus acerifolia (all P < 0.001); and fruits: apple (P < 0.04), peanut (P < 0.002), tomato (P < 0.005), and melon (P < 0.05). Pru p 3 sIgE was detected in 61% of all cases (85% anaphylaxis and 38% OAS; P < 0.01 each) and 5% of controls (P < 0.001). Pru p 4 sIgE was present in 19% of cases and 7% of controls. The sIgE to Pru p 1 and Pru p 7 were not found. The odds ratio to predict anaphylaxis for peach peel SPT was 113 (confidence interval [CI], 20–613; P < 0.0001); for sIgE to Pru p 3, 22 (CI, 5.3–93; P < 0.0001); and for SPT positivity to selected plant food allergens, 5 (CI, 1–19; P < 0.05). In our study group, SPT with peel peach extract was a better predictor of anaphylaxis than Pru p 3 sIgE or other variables considered. The role of sIgE to Pru p 1, Pru p 4, and Pru p 7 seemed negligible.
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Affiliation(s)
- Maria Luisa Somoza
- Department of Allergy, Infanta Leonor University Hospital, Madrid, Spain.
| | | | - Laura Martín-Pedraza
- Department of Allergy, Fundación para la Investigación e Innovación Biomédica (FIIB) de los Hospitales Universitarios Infanta Leonor y Sureste, Madrid, Spain
| | - Laura Victorio Puche
- Department of Allergy, Morales Meseguer General University Hospital, Murcia, Spain
| | | | | | | | - Enrique Fernández-Caldas
- R&D Department, Inmunotek Laboratories, Madrid, Spain.,Division of Allergy and Immunology, University of South Florida College of Medicine, Tampa, FL, USA
| | | | - Francisco Javier Fernández-Sánchez
- Department of Allergy, General University Hospital of Alicante-ISABIAL, Alicante, Spain.,Department of Clinical Medicine, Miguel Hernandez University, Alicante, Spain
| | | | | | - Gabriela Canto
- Department of Allergy, Infanta Leonor University Hospital, Madrid, Spain.,School of Medicine, Universidad Complutense de Madrid, Madrid, Spain
| | - Miguel Blanca
- Department of Allergy, Infanta Leonor University Hospital, Madrid, Spain
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14
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Morales-Amparano MB, Valenzuela-Corral A, Ramos-Clamont Montfort G, Vázquez-Moreno L, Escobedo-Moratilla A, Pastor-Palacios G, Ovando-Vázquez C, Teran LM, Huerta-Ocampo JÁ. Immunoproteomic identification of allergenic proteins in pecan (Carya illinoinensis) pollen. J Proteomics 2021; 248:104348. [PMID: 34391935 DOI: 10.1016/j.jprot.2021.104348] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 07/03/2021] [Accepted: 08/06/2021] [Indexed: 10/20/2022]
Abstract
Pecan (C. illinoinensis) pollen is an important cause of allergic respiratory disease. Pecan is distributed worldwide as shade, ornamental or cultivation tree. To date three well known pecan food allergens have been reported, however, pollen allergens have not been identified. Here, we describe the first identification of IgE recognized pecan pollen proteins, for which proteins were analyzed by 2-DE and immunoblotting using a pool of 8 sera from pecan sensitive patients as primary antibody. IgE recognized protein spots were analyzed by LC-MS/MS and identified using a database of translated protein sequences obtained by the assembly of C. illinoinensis public transcriptomic information. This study has identified 17 IgE binding proteins from pecan pollen including proteins widely recognized as allergens and panallergens. These findings will contribute to develop specific diagnosis and treatment of pecan pollen allergy. SIGNIFICANCE: Pecan is a tree highly valued for its fruits that have a great commercial value. To date three pecan seed storage proteins have been officially recognized by the WHO/IUIS allergen nomenclature subcommittee as food allergens (Car i 1, Car i 2 and Car i 4). Pecan tree pollen is highly allergenic and a clinically relevant cause of allergies in North America (USA and Mexico) and regions where the tree is extensively cultivated (Israel, South Africa, Australia, Egypt, Peru, Argentina, and Brazil). Here, we describe the first identification of IgE recognized pollen proteins using an immunoproteomics approach and a protein database created by the assembly of pecan public transcriptomic information. The findings described here will allow the development of new diagnostic and therapeutic modalities for pecan pollen allergy.
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Affiliation(s)
| | | | | | - Luz Vázquez-Moreno
- Centro de Investigación en Alimentación y Desarrollo, A.C. Hermosillo, Sonora 83304, Mexico
| | - Abraham Escobedo-Moratilla
- CONACYT-Consorcio de Investigación, Innovación y Desarrollo para las Zonas Áridas-IPICYT, San Luis Potosí 78216, Mexico
| | - Guillermo Pastor-Palacios
- CONACYT-Consorcio de Investigación, Innovación y Desarrollo para las Zonas Áridas-IPICYT, San Luis Potosí 78216, Mexico
| | | | - Luis M Teran
- Instituto Nacional de Enfermedades Respiratorias "Ismael Cosío Villegas", Ciudad de México 14080, Mexico.
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15
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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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16
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Fan PS, Sun MJ, Qin D, Yuan CS, Chen XG, Liu Y. Nanosystems as curative platforms for allergic disorder management. J Mater Chem B 2021; 9:1729-1744. [PMID: 33475131 DOI: 10.1039/d0tb02590a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Allergy, IgE-mediated inflammatory disorders including allergic rhinitis, asthma, and conjunctivitis, affects billions of people worldwide. Conventional means of allergy management include allergen avoidance, pharmacotherapy, and emerging therapies. Among them, chemotherapeutant intake via oral, intravenous, and intranasal routes is always the most common mean. Although current pharmacotherapy exhibit splendid anti-allergic effects, short in situ retention, low bioavailability, and systemic side effects are inevitable. Nowadays, nanoplatforms have provided alternative therapeutic options to obviate the existing weakness via enhancing the solubility of hydrophobic therapeutic agents, achieving in situ drug accumulation, exhibiting controlled and long-time drug release at lesion areas, and providing multi-functional therapeutic strategies. Herein, we highlight the clinical therapeutic strategies and deal with characteristics of the nanoplatform design in allergy interventions via intratracheal, gastrointestinal, intravenous, and ocular paths. The promising therapeutic utilization in a variety of allergic disorders is discussed, and recent perspectives on the feasible advances of nanoplatforms in allergy management are also exploited.
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Affiliation(s)
- Peng-Sheng Fan
- College of Marine Life Science, Ocean University of China, Qingdao, 266003, P. R. China.
| | - Meng-Jie Sun
- College of Marine Life Science, Ocean University of China, Qingdao, 266003, P. R. China.
| | - Di Qin
- College of Marine Life Science, Ocean University of China, Qingdao, 266003, P. R. China.
| | - Cong-Shan Yuan
- College of Marine Life Science, Ocean University of China, Qingdao, 266003, P. R. China.
| | - Xi-Guang Chen
- College of Marine Life Science, Ocean University of China, Qingdao, 266003, P. R. China.
| | - Ya Liu
- College of Marine Life Science, Ocean University of China, Qingdao, 266003, P. R. China.
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17
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Asero R, Ariano R, Aruanno A, Barzaghi C, Borrelli P, Busa M, Celi G, Cinquini M, Cortellini G, D’Auria F, De Carli M, Di Paolo C, Garzi G, Lodi Rizzini F, Magnani M, Manzotti G, Marra A, Miceli Sopo S, Murzilli F, Nucera E, Pinter E, Pravettoni V, Rivolta F, Rizzi A, Saporiti N, Scala E, Villalta D, Yacoub M, Zisa G. Systemic allergic reactions induced by labile plant-food allergens: Seeking potential cofactors. A multicenter study. Allergy 2021; 76:1473-1479. [PMID: 33080053 DOI: 10.1111/all.14634] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 09/13/2020] [Accepted: 10/05/2020] [Indexed: 01/17/2023]
Abstract
BACKGROUND Heat-and-pepsin-sensitive plant food allergens (PR-10 and profilin) sometimes cause systemic reaction. OBJECTIVE To detect the risk factors for systemic reactions induced by labile food allergens. METHODS A retrospective multicenter study was performed on patients with a documented history of systemic allergic reaction to labile plant food allergens and on age-matched controls with a history of oral allergy syndrome (OAS) induced by the same foods. Offending foods, their amount, and state (solid or liquid), and potential cofactors (nonsteroidal anti-inflammatory drugs, protonic pump inhibitors, exercise, alcohol, and fasting) were considered. RESULTS We studied 89 patients and 81 controls. Sensitization to PR-10 or profilin, IgE to Bet v 1 and/or Bet v 2, and foods causing OAS were similar in the two groups. Twenty patients experienced >1 systemic allergic reaction. Tree nuts, Rosaceae, Apiaceae, and soymilk were the main offending foods. Seventeen (19%) patients were taking a PPI when the systemic reaction occurred (vs 5% in controls; P < .025). The ingestion of the offending food in liquid form (soymilk) was frequent among patients (15%) but unusual among controls (2%; P < .025). Soy milk-induced systemic reactions were independent of PPI treatment. Fasting and excess of allergen, but not NSAID and exercise, were other relevant cofactors for systemic reactions. Systemic reactions occurred without any identifiable cofactor in 39 (44%) cases. CONCLUSION PR-10- and profilin-induced systemic reactions are facilitated by PPI, ingestion of large amounts of unprocessed foods, and fasting. Soybean beverages represent a risk for PR-10 hypersensitive patients and should be avoided.
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Affiliation(s)
- Riccardo Asero
- Ambulatorio di Allergologia Clinica san Carlo Paderno Dugnano (MI) Italia
| | | | - Arianna Aruanno
- Fondazione Policlinico Universitario A. Gemelli‐ IRCCS Università Cattolica del Sacro Cuore Roma Italy
| | - Claudio Barzaghi
- Ambulatorio di Allergologia UOC Medicina ASST Rhodenese, P.O Rho Rho Italia
| | - Paolo Borrelli
- SSD Dermatologia e Allergologia ‐ Ospedale Beauregard Aosta Italia
| | - Moira Busa
- Ambulatorio di Allergologia U.O.S. Dermatologia Ospedale di Mirano (VE) Mirano Italia
- Ambulatorio di Allergologia Ospedale di Bassano del Grappa (VI) Bassano del Grappa Italia
| | | | | | | | | | - Marco De Carli
- S.O.C Medicina 2 Presidio Ospedaliero "Santa Maria della Misericordia" Udine Italy
| | | | - Giulia Garzi
- Ambulatorio di Allergologia UOC Medicina Interna ed Immunologia Clinica, Policlinico Umberto I Roma Italia
| | - Fabio Lodi Rizzini
- Dipartimento Scienze Cliniche e Sperimentali Università Studi Brescia / SSVD Allergologia Spedali Civili Brescia Italy
| | | | | | - Alessandro Marra
- Ambulatorio di Allergologia UOC Medicina ASST Rhodenese, P.O Rho Rho Italia
| | - Stefano Miceli Sopo
- Pediatric Allergy Unit Pediatrics Area Department of Life Sciences and Public Health Policlinico Gemelli Fondazione Universitaria IRCCS Università Cattolica del Sacro Cuore Roma Italia
| | - Francesco Murzilli
- U.O.S.D. di Allergologia Ospedale S.S. Filippo e Nicola Avezzano (AQ) Italy
| | - Eleonora Nucera
- Fondazione Policlinico Universitario A. Gemelli‐ IRCCS Università Cattolica del Sacro Cuore Roma Italy
| | - Elena Pinter
- Ambulatorio di Allergologia UOC Medicina Interna ed Immunologia Clinica, Policlinico Umberto I Roma Italia
| | - Valerio Pravettoni
- UOC General Medicine Immunology and Allergology – IRCCS Foudation Ca’ Granda Ospedale Maggiore Policlinico Milan Italy
| | - Federica Rivolta
- UOC General Medicine Immunology and Allergology – IRCCS Foudation Ca’ Granda Ospedale Maggiore Policlinico Milan Italy
| | - Angela Rizzi
- Fondazione Policlinico Universitario A. Gemelli‐ IRCCS Università Cattolica del Sacro Cuore Roma Italy
| | - Nicoletta Saporiti
- Unit of Immunology Rheumatology, Allergy and Rare Diseases IRCCS Ospedale San Raffaele Milano Italy
| | | | - Danilo Villalta
- Immunologia e Allergologia Ospedale S. Maria degli Angeli Pordenone Italia
| | - Mona‐Rita Yacoub
- Unit of Immunology Rheumatology, Allergy and Rare Diseases IRCCS Ospedale San Raffaele Milano Italy
| | - Giuliana Zisa
- S.S. Allergologia e Immunologia Clinica S.C.D.U. Medicina Interna I ‐ A.O.U. Maggiore della Carità di Novara Novara Italy
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18
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Gomez-Casado C, Sanchez-Solares J, Izquierdo E, Díaz-Perales A, Barber D, Escribese MM. Oral Mucosa as a Potential Site for Diagnosis and Treatment of Allergic and Autoimmune Diseases. Foods 2021; 10:970. [PMID: 33925074 PMCID: PMC8146604 DOI: 10.3390/foods10050970] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 04/23/2021] [Accepted: 04/26/2021] [Indexed: 12/15/2022] Open
Abstract
Most prevalent food allergies during early childhood are caused by foods with a high allergenic protein content, such as milk, egg, nuts, or fish. In older subjects, some respiratory allergies progressively lead to food-induced allergic reactions, which can be severe, such as urticaria or asthma. Oral mucosa remodeling has been recently proven to be a feature of severe allergic phenotypes and autoimmune diseases. This remodeling process includes epithelial barrier disruption and the release of inflammatory signals. Although little is known about the immune processes taking place in the oral mucosa, there are a few reports describing the oral mucosa-associated immune system. In this review, we will provide an overview of the recent knowledge about the role of the oral mucosa in food-induced allergic reactions, as well as in severe respiratory allergies or food-induced autoimmune diseases, such as celiac disease.
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Affiliation(s)
- Cristina Gomez-Casado
- Institute of Applied Molecular Medicine, Department of Basic Medical Sciences, Faculty of Medicine, San Pablo CEU University, 28003 Madrid, Spain; (J.S.-S.); (E.I.); (D.B.); (M.M.E.)
| | - Javier Sanchez-Solares
- Institute of Applied Molecular Medicine, Department of Basic Medical Sciences, Faculty of Medicine, San Pablo CEU University, 28003 Madrid, Spain; (J.S.-S.); (E.I.); (D.B.); (M.M.E.)
| | - Elena Izquierdo
- Institute of Applied Molecular Medicine, Department of Basic Medical Sciences, Faculty of Medicine, San Pablo CEU University, 28003 Madrid, Spain; (J.S.-S.); (E.I.); (D.B.); (M.M.E.)
| | - Araceli Díaz-Perales
- Center of Plant Biotechnology and Genomics, Technical University of Madrid, 28040 Madrid, Spain;
| | - Domingo Barber
- Institute of Applied Molecular Medicine, Department of Basic Medical Sciences, Faculty of Medicine, San Pablo CEU University, 28003 Madrid, Spain; (J.S.-S.); (E.I.); (D.B.); (M.M.E.)
| | - María M. Escribese
- Institute of Applied Molecular Medicine, Department of Basic Medical Sciences, Faculty of Medicine, San Pablo CEU University, 28003 Madrid, Spain; (J.S.-S.); (E.I.); (D.B.); (M.M.E.)
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19
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Gabrielli S, Clarke AE, Morris J, Gravel J, Lim R, Chan ES, Goldman RD, O'Keefe A, Gerdts J, Chu DK, Upton J, Hochstadter E, Moisan J, Bretholz A, McCusker C, Zhang X, Protudjer JLP, Abrams EM, Simons E, Ben-Shoshan M. Fruit-Induced Anaphylaxis: Clinical Presentation and Management. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2021; 9:2825-2830.e2. [PMID: 33727108 DOI: 10.1016/j.jaip.2021.02.055] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Revised: 02/19/2021] [Accepted: 02/26/2021] [Indexed: 11/24/2022]
Abstract
BACKGROUND Data are sparse regarding the clinical characteristics and management of fruit-induced anaphylaxis. OBJECTIVE To assess clinical characteristics and management of patients with fruit-induced anaphylaxis and determine factors associated with severe reactions and epinephrine use. METHODS Over 9 years, children and adults presenting with anaphylaxis to seven emergency departments in four Canadian provinces and patients requiring emergency medical services in Outaouais, Quebec were recruited as part of the Cross-Canada Anaphylaxis Registry. A standardized form documenting symptoms, triggers, and management was collected. Multivariate logistic regression was used to identify factors associated with severe reactions and epinephrine treatment in the pre-hospital setting. RESULTS We recruited 250 patients with fruit-induced anaphylaxis, median age 10.2 years (interquartile range, 3.6-23.4 years); 48.8% were male. The most common fruit triggers were kiwi (15.6%), banana (10.8%), and mango (9.2%). Twenty-three patients reported having eczema (9.3%). Epinephrine use was low in both the pre-hospital setting and the emergency department (28.4% and 40.8%, respectively). Severe reactions to fruit were more likely to occur in spring and among those with eczema (adjusted odds ratio [aOR] = 1.12, 95% confidence interval [CI], 1.03-1.23; and 1.17, 95% CI, 1.03-1.34, respectively). Patients with moderate and severe reactions (aOR = 1.23; 95% CI, 1.06-1.43) and those with a known food allergy (aOR = 1.38; 95% CI, 1.24-1.54) were more likely to be treated with epinephrine in the pre-hospital setting. CONCLUSIONS Severe anaphylaxis to fruit is more frequent in spring. Cross-reactivity to pollens is a potential explanation that should be evaluated further.
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Affiliation(s)
- Sofianne Gabrielli
- Division of Allergy and Clinical Immunology, Department of Pediatrics, Montreal Children's Hospital, McGill University Health Centre, Montreal, QC, Canada.
| | - Ann E Clarke
- Division of Rheumatology, Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Judy Morris
- Department of Emergency Medicine, Sacré-Coeur Hôpital, Montreal, QC, Canada
| | - Jocelyn Gravel
- Division of Pediatric Emergency Medicine, Department of Pediatrics, Centre Hospitalier Universitaire Sainte-Justine, Université de Montréal, Montreal, QC, Canada
| | - Rodrick Lim
- Division of Pediatric Emergency Medicine, Department of Pediatrics, Children's Hospital at London Health Science Centre, London, ON, Canada
| | - Edmond S Chan
- Division of Allergy and Immunology, Department of Pediatrics, BC Children's Hospital, University of British Columbia, Vancouver, BC, Canada
| | - Ran D Goldman
- Division of Clinical Pharmacology and Emergency Medicine, Department of Pediatrics, BC Children's Hospital, University of British Columbia, Vancouver, BC, Canada
| | - Andrew O'Keefe
- Department of Pediatrics, Faculty of Medicine, Memorial University, St John's, NL, Canada
| | | | - Derek K Chu
- Division of Clinical Immunology and Allergy, Department of Medicine, and Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada
| | - Julia Upton
- Division of Immunology and Allergy, Department of Pediatrics, The Hospital for Sick Children, Department of Paediatrics, University of Toronto, Toronto, ON, Canada
| | - Elana Hochstadter
- Department of Pediatric Emergency Medicine, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada
| | - Jocelyn Moisan
- Emergency Medical Services of Outaouais, Outaouais, QC, Canada
| | - Adam Bretholz
- Division of Pediatric Emergency Medicine, Department of Pediatrics, Montreal Children's Hospital, Montreal, QC, Canada
| | - Christine McCusker
- Division of Allergy and Clinical Immunology, Department of Pediatrics, Montreal Children's Hospital, McGill University Health Centre, Montreal, QC, Canada
| | - Xun Zhang
- Centre for Outcomes Research and Evaluation, Research Institute of McGill University Health Centre, Montreal, QC, Canada
| | - Jennifer L P Protudjer
- Department of Pediatrics and Child Health, Children's Hospital Research Institute of Manitoba, Winnipeg, MB, Canada
| | - Elissa M Abrams
- Department of Pediatrics and Child Health, Section of Allergy and Clinical Immunology, Children's Hospital Research Institute of Manitoba, Winnipeg, MB, Canada
| | - Elinor Simons
- Department of Pediatrics and Child Health, Section of Allergy and Clinical Immunology, Children's Hospital Research Institute of Manitoba, Winnipeg, MB, Canada
| | - Moshe Ben-Shoshan
- Division of Allergy and Clinical Immunology, Department of Pediatrics, Montreal Children's Hospital, McGill University Health Centre, Montreal, QC, Canada
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20
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Neeharika D, Sunkar S. Computational approach for the identification of putative allergens from Cucurbitaceae family members. Journal of Food Science and Technology 2021; 58:267-280. [PMID: 33505071 DOI: 10.1007/s13197-020-04539-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 05/12/2020] [Accepted: 05/21/2020] [Indexed: 11/24/2022]
Abstract
Certain substances referred to as allergens, induce hypersensitivity (allergic reactions) which normally are considered to be innocuous, are small in size and incite IgE response. This study was focused to predict the putative allergens from other Cucurbitaceae family members using computational approach by analyzing the already reported allergens of the same family. The four reported allergens Cuc m 1, Cuc m 2, Cuc m 3 and Citr I 2 of Cucurbitaceae family were obtained from International Union of Immunological Societies, in which three were from Cucumis melo (Muskmelon) and one from Citrullus lanatus (Watermelon) respectively. BlastP analysis reported 44 similar sequences to these allergens from other members of Cucurbitaceae family namely Cucurbita moschata, Cucurbita pepo and Cucurbita maxima. The allergenicity of these sequences was predicted using AlgPred tool in which it revealed 26 protein sequences as putative allergens. These selected sequences were further analyzed for their physicochemical properties using ProtParam tool in which 13 sequences were found to satisfy the required parameters, and therefore further analyzed by AllerMatch™ and AllergenOnline tools to check the Codex Alimentarius rules for allergens. Finally, 13 sequences that were selected were structurally analyzed for similarity using PROMALS3D tool and phylogenetic relationship was established with the reported allergens using MEGA-X software. It was concluded that 13 sequences from Cucurbitaceae family belonging to different species of Pumpkin showed potential allergenicity based on the computational analysis that possibly can play a role in allergies and cross reactivity.
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Affiliation(s)
- Desam Neeharika
- Department of Bioinformatics, Sathyabama Institute of Science and Technology, Chennai, 600119 India
| | - Swetha Sunkar
- Department of Bioinformatics, Sathyabama Institute of Science and Technology, Chennai, 600119 India
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21
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Lyons SA, Datema MR, Le TM, Asero R, Barreales L, Belohlavkova S, de Blay F, Clausen M, Dubakiene R, Fernández-Perez C, Fritsche P, Gislason D, Hoffmann-Sommergruber K, Jedrzejczak-Czechowicz M, Jongejan L, Kowalski ML, Kralimarkova TZ, Lidholm J, Papadopoulos NG, Pontoppidan B, Popov TA, Prado ND, Purohit A, Reig I, Seneviratne SL, Sinaniotis A, Vassilopoulou E, Versteeg SA, Vieths S, Zwinderman AH, Welsing PM, Mills EC, Ballmer-Weber BK, Knulst AC, Fernández-Rivas M, Van Ree R. Walnut Allergy Across Europe: Distribution of Allergen Sensitization Patterns and Prediction of Severity. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2021; 9:225-235.e10. [DOI: 10.1016/j.jaip.2020.08.051] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 07/17/2020] [Accepted: 08/24/2020] [Indexed: 01/16/2023]
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22
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Shams MH, Assarehzadegan MA, Eskandari N, Masjedi M, Kheirandish F, Ghasemi R, Ganjalikhani Hakemi M, Varzi AM, Safari M, Sohrabi SM, Abdoli Sereshki H. Molecular and immunochemical characterization of Pop n 2: A new allergen of Populus nigra pollen. Clin Exp Allergy 2020; 51:1613-1623. [PMID: 33210791 DOI: 10.1111/cea.13789] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Revised: 10/05/2020] [Accepted: 10/28/2020] [Indexed: 02/05/2023]
Abstract
BACKGROUND Pollen is one of the most common allergens that cause respiratory allergies worldwide. Pollen grains from poplars have been reported as important sources of pollinosis in many countries. OBJECTIVE The aim of the present study was to determine the molecular and immunochemical characterization of Pop n 2, a novel allergen of Populus nigra (P nigra) pollen extract. METHODS In this study, the pollen extract of P nigra was analysed by SDS-PAGE, and the allergenic profile was determined by IgE immunoblotting and specific ELISA using the sera of twenty allergic patients. The coding sequence of Pop n 2 was cloned and expressed in the Escherichia coli BL21 (DE3) using plasmid the pET-21b (+). Finally, the expressed recombinant Pop n 2 was purified by affinity chromatography. RESULTS Pop n 2 belongs to the profilin family with a molecular weight of approximately 14 kDa. Pop n 2 is the most IgE-reactive protein (about 65%) in the P nigra pollen extract. The cDNA sequencing results indicated an open reading frame 396 bp that encodes 131 amino acid residues. The results of ELISA and Immunoblotting assays showed that recombinant Pop n 2 could react with the IgE antibody in patients' sera, like its natural counterpart. CONCLUSION Our data revealed that Pop n 2 is a significant allergen in the P nigra pollen extract. Moreover, we observed that the recombinant Pop n 2 produced by the pET-21b (+) vector in the E colisystem acts as its natural counterpart.
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Affiliation(s)
- Mohammad-Hossein Shams
- Department of Immunology, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.,Razi Herbal Medicines Research Center, Lorestan University of Medical sciences, Khorramabad, Iran
| | - Mohammad-Ali Assarehzadegan
- Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Science, Tehran, Iran.,Immunology Department, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Nahid Eskandari
- Department of Immunology, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohsen Masjedi
- Department of Immunology, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Farnaz Kheirandish
- Razi Herbal Medicines Research Center, Lorestan University of Medical sciences, Khorramabad, Iran.,Department of Medical Parasitology and Mycology, School of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Ramin Ghasemi
- Department of Immunology, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | | | - Ali-Mohammad Varzi
- Department of Medical Immunology, School of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Mojgan Safari
- Department of Pediatrics, School of Medicines, Hamedan University of Medical Science, Hamedan, Iran
| | - Seyyed-Mohsen Sohrabi
- Razi Herbal Medicines Research Center, Lorestan University of Medical sciences, Khorramabad, Iran
| | - Haleh Abdoli Sereshki
- Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Science, Tehran, Iran.,Immunology Department, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
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23
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Mares-Mejía I, García-Ramírez B, Torres-Larios A, Rodríguez-Hernández A, Osornio-Hernández AI, Terán-Olvera G, Ortega E, Rodríguez-Romero A. Novel murine mAbs define specific and cross-reactive epitopes on the latex profilin panallergen Hev b 8. Mol Immunol 2020; 128:10-21. [PMID: 33045539 DOI: 10.1016/j.molimm.2020.09.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 09/10/2020] [Accepted: 09/25/2020] [Indexed: 01/06/2023]
Abstract
The production of specific antibodies able to recognize allergens from different sources or block interactions between allergens and antibodies mediating allergic reactions is crucial for developing successful tools for diagnostics and therapeutics. Panallergens are highly conserved proteins present in widely different species, implicated in relevant cross-reactions. The panallergen latex profilin (Hev b 8) has been associated with the latex-food-pollen syndrome. We generated five monoclonal IgGs and one IgE from murine hybridomas against recombinant Hev b 8 and evaluated their interaction with this allergen using ELISA and biolayer interferometry (BLI). Affinity purified mAbs exhibited high binding affinities towards rHev b 8, with KD1 values ranging from 10-10 M to 10-11 M. Some of these antibodies also recognized the recombinant profilins from maize and tomato (Zea m 12 and Sola l 1), and the ash tree pollen (Fra e 2). Competition ELISA demonstrated that some mAb pairs could bind simultaneously to rHev b 8. Using BLI, we detected competitive, non-competitive, and partial-competition interactions between pairs of mAbs with rHev b 8, suggesting the existence of at least two non-overlapping epitopes on the surface of this allergen. Three-dimensional models of the Fv of 1B4 and 2D10 IgGs and docking simulations of these Fvs with rHev b 8 revealed these epitopes. Furthermore, these two mAbs inhibited the interaction of polyclonal IgE and IgG4 antibodies from profilin-allergic patients with rHev b 8, indicating that the mAbs and the antibodies present in sera from allergic patients bind to overlapping epitopes on the allergen. These mAbs can be useful tools for immune-localization studies, immunoassay development, or standardization of allergenic products.
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Affiliation(s)
- Israel Mares-Mejía
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Cd. Universitaria, Coyoacán, Ciudad de México, 04510, Mexico
| | - Benjamín García-Ramírez
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Cd. Universitaria, Coyoacán, Ciudad de México, 04510, Mexico
| | - Alfredo Torres-Larios
- Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Circuito Exterior, Cd. Universitaria, Coyoacán, Ciudad de México, 04510, Mexico
| | - Annia Rodríguez-Hernández
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Cd. Universitaria, Coyoacán, Ciudad de México, 04510, Mexico
| | - Ana Isabel Osornio-Hernández
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Cd. Universitaria, Coyoacán, Ciudad de México, 04510, Mexico
| | - Gabriela Terán-Olvera
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Cd. Universitaria, Coyoacán, Ciudad de México, 04510, Mexico
| | - Enrique Ortega
- Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Circuito Exterior, Cd. Universitaria, Coyoacán, Ciudad de México, 04510, Mexico.
| | - Adela Rodríguez-Romero
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Cd. Universitaria, Coyoacán, Ciudad de México, 04510, Mexico.
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24
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Zhang Y, Jin T. Almond allergens: update and perspective on identification and characterization. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2020; 100:4657-4663. [PMID: 32270879 DOI: 10.1002/jsfa.10417] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 04/01/2020] [Accepted: 04/09/2020] [Indexed: 06/11/2023]
Abstract
Almond (Prunus dulcis) is not only widely used as a human food as a result of its flavor, nutrients, and health benefits, but it is also one of the most likely tree nuts to trigger allergies. Almond allergens, however, have not been studied as extensively as those of peanuts and other selected tree nuts. This review provides an update of the molecular properties of almond allergens to clarify some confusion about the identities of almond allergens and our perspective on characterizing putative almond allergens. At present, the following almond allergens have been designated by the World Health Organization/International Union of Immunological Societies Allergen Nomenclature Sub-Committee: Pru du 3 (a non-specific lipid transfer protein 1, nsLTP1), Pru du 4 (a profilin), Pru du 5 (60S acidic ribosomal protein 2), Pru du 6 (an 11S legumin known as prunin) and Pru du 8 (an antimicrobial protein with cC3C repeats). Besides, almond vicilin and almond γ-conglutin have been identified as food allergens, although further characterization of these allergens is still of interest. In addition, almond 2S albumin was reported as a food allergen as a result of the misidentification of Pru du 8. Two more almond proteins have been called allergens based on their sequence homology with known food allergens and their 'membership' in relevant protein families that contain allergens in many species. These include the pathogenesis related-10 protein (referred to as Pru du 1) and the thaumatin-like protein (referred to as Pru du 2). Almonds thus have five known food allergens and five more likely ones that need to be investigated further. Published 2020. This article is a U.S. Government work and is in the public domain in the USA.
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Affiliation(s)
- Yuzhu Zhang
- U.S. Department of Agriculture, Agricultural Research Service, Pacific West Area, Western Regional Research Center, Albany, CA, USA
| | - Tengchuan Jin
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
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25
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Abstract
This review searched for published evidence that could explain how different physicochemical properties impact on the allergenicity of food proteins and if their effects would follow specific patterns among distinct protein families. Owing to the amount and complexity of the collected information, this literature overview was divided in two articles, the current one dedicated to protein families of plant allergens and a second one focused on animal allergens. Our extensive analysis of the available literature revealed that physicochemical characteristics had consistent effects on protein allergenicity for allergens belonging to the same protein family. For example, protein aggregation contributes to increased allergenicity of 2S albumins, while for legumins and cereal prolamins, the same phenomenon leads to a reduction. Molecular stability, related to structural resistance to heat and proteolysis, was identified as the most common feature promoting plant protein allergenicity, although it fails to explain the potency of some unstable allergens (e.g. pollen-related food allergens). Furthermore, data on physicochemical characteristics translating into clinical effects are limited, mainly because most studies are focused on in vitro IgE binding. Clinical data assessing how these parameters affect the development and clinical manifestation of allergies is minimal, with only few reports evaluating the sensitising capacity of modified proteins (addressing different physicochemical properties) in murine allergy models. In vivo testing of modified pure proteins by SPT or DBPCFC is scarce. At this stage, a systematic approach to link the physicochemical properties with clinical plant allergenicity in real-life scenarios is still missing.
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26
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Santos AF, Barbosa‐Morais NL, Hurlburt BK, Ramaswamy S, Hemmings O, Kwok M, O’Rourke C, Bahnson HT, Cheng H, James L, Gould HJ, Sutton BJ, Maleki SJ, Lack G. IgE to epitopes of Ara h 2 enhance the diagnostic accuracy of Ara h 2-specific IgE. Allergy 2020; 75:2309-2318. [PMID: 32248566 DOI: 10.1111/all.14301] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Revised: 02/14/2020] [Accepted: 02/20/2020] [Indexed: 11/30/2022]
Abstract
BACKGROUND Understanding the discrepancy between IgE sensitization and allergic reactions to peanut could facilitate diagnosis and lead to novel means of treating peanut allergy. OBJECTIVE To identify differences in IgE and IgG4 binding to peanut peptides between peanut-allergic (PA) and peanut-sensitized but tolerant (PS) children. METHODS PA (n = 56), PS (n = 42) and nonsensitized nonallergic (NA, n = 10) patients were studied. Synthetic overlapping 15-mer peptides of peanut allergens (Ara h 1-11) were spotted onto microarray slides, and patients' samples were tested for IgE and IgG4 binding using immunofluorescence. IgE and IgG4 levels to selected peptides were quantified using ImmunoCAP. Diagnostic model comparisons were performed using likelihood-ratio tests between each specified nominal logistic regression models. RESULTS Seven peptides on Ara h 1, Ara h 2, and Ara h 3 were bound more by IgE of PA compared to PS patients on the microarray. IgE binding to one peptide on Ara h 5 and IgG4 binding to one Ara h 9 peptide were greater in PS than in PA patients. Using ImmunoCAP, IgE to the Ara h 2 peptides enhanced the diagnostic accuracy of Ara h 2-specific IgE. Ratios of IgG4/IgE to 4 out of the 7 peptides were higher in PS than in PA subjects. CONCLUSIONS Ara h 2 peptide-specific IgE added diagnostic value to Ara h 2-specific IgE. Ability of peptide-specific IgG4 to surmount their IgE counterpart seems to be important in established peanut tolerance.
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Affiliation(s)
- Alexandra F. Santos
- Department of Women and Children’s Health (Paediatric Allergy) School of Life Course Sciences Faculty of Life Sciences and Medicine King’s College London London UK
- Peter Gorer Department of Immunobiology School of Immunology and Microbial Sciences, Faculty of Life Sciences and Medicine King’s College London London UK
- Children’s Allergy ServiceEvelina London Children's Hospital, Guy’s and St Thomas’ Hospital London UK
- Asthma UK Centre in Allergic Mechanisms of Asthma London UK
| | - Nuno L. Barbosa‐Morais
- Faculdade de Medicina Instituto de Medicina Molecular João Lobo Antunes Universidade de Lisboa Lisbon Portugal
| | - Barry K. Hurlburt
- US Department of Agriculture Southern Regional Research Center New Orleans LA USA
| | - Sneha Ramaswamy
- Asthma UK Centre in Allergic Mechanisms of Asthma London UK
- Randall Centre for Cell & Molecular Biophysics King’s College London London UK
| | - Oliver Hemmings
- Department of Women and Children’s Health (Paediatric Allergy) School of Life Course Sciences Faculty of Life Sciences and Medicine King’s College London London UK
- Peter Gorer Department of Immunobiology School of Immunology and Microbial Sciences, Faculty of Life Sciences and Medicine King’s College London London UK
- Asthma UK Centre in Allergic Mechanisms of Asthma London UK
| | - Matthew Kwok
- Department of Women and Children’s Health (Paediatric Allergy) School of Life Course Sciences Faculty of Life Sciences and Medicine King’s College London London UK
- Peter Gorer Department of Immunobiology School of Immunology and Microbial Sciences, Faculty of Life Sciences and Medicine King’s College London London UK
- Asthma UK Centre in Allergic Mechanisms of Asthma London UK
| | | | | | - Hsiaopo Cheng
- US Department of Agriculture Southern Regional Research Center New Orleans LA USA
| | - Louisa James
- Blizard Institute Queen Mary University of London London UK
| | - Hannah J. Gould
- Asthma UK Centre in Allergic Mechanisms of Asthma London UK
- Randall Centre for Cell & Molecular Biophysics King’s College London London UK
| | - Brian J. Sutton
- Asthma UK Centre in Allergic Mechanisms of Asthma London UK
- Randall Centre for Cell & Molecular Biophysics King’s College London London UK
| | - Soheila J. Maleki
- US Department of Agriculture Southern Regional Research Center New Orleans LA USA
| | - Gideon Lack
- Department of Women and Children’s Health (Paediatric Allergy) School of Life Course Sciences Faculty of Life Sciences and Medicine King’s College London London UK
- Peter Gorer Department of Immunobiology School of Immunology and Microbial Sciences, Faculty of Life Sciences and Medicine King’s College London London UK
- Children’s Allergy ServiceEvelina London Children's Hospital, Guy’s and St Thomas’ Hospital London UK
- Asthma UK Centre in Allergic Mechanisms of Asthma London UK
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27
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Pimm ML, Hotaling J, Henty-Ridilla JL. Profilin choreographs actin and microtubules in cells and cancer. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2020; 355:155-204. [PMID: 32859370 PMCID: PMC7461721 DOI: 10.1016/bs.ircmb.2020.05.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Actin and microtubules play essential roles in aberrant cell processes that define and converge in cancer including: signaling, morphology, motility, and division. Actin and microtubules do not directly interact, however shared regulators coordinate these polymers. While many of the individual proteins important for regulating and choreographing actin and microtubule behaviors have been identified, the way these molecules collaborate or fail in normal or disease contexts is not fully understood. Decades of research focus on Profilin as a signaling molecule, lipid-binding protein, and canonical regulator of actin assembly. Recent reports demonstrate that Profilin also regulates microtubule dynamics and polymerization. Thus, Profilin can coordinate both actin and microtubule polymer systems. Here we reconsider the biochemical and cellular roles for Profilin with a focus on the essential cytoskeletal-based cell processes that go awry in cancer. We also explore how the use of model organisms has helped to elucidate mechanisms that underlie the regulatory essence of Profilin in vivo and in the context of disease.
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Affiliation(s)
- Morgan L Pimm
- Department of Cell and Developmental Biology, State University of New York (SUNY) Upstate Medical University, Syracuse, NY, United States
| | - Jessica Hotaling
- Department of Cell and Developmental Biology, State University of New York (SUNY) Upstate Medical University, Syracuse, NY, United States
| | - Jessica L Henty-Ridilla
- Department of Cell and Developmental Biology, State University of New York (SUNY) Upstate Medical University, Syracuse, NY, United States; Department of Biochemistry and Molecular Biology, State University of New York (SUNY) Upstate Medical University, Syracuse, NY, United States.
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28
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Ramanathan G, Seleenmary Sobhanadhas LS, Sekar Jeyakumar GF, Devi V, Sivagnanam UT, Fardim P. Fabrication of Biohybrid Cellulose Acetate-Collagen Bilayer Matrices as Nanofibrous Spongy Dressing Material for Wound-Healing Application. Biomacromolecules 2020; 21:2512-2524. [PMID: 32343892 PMCID: PMC7735674 DOI: 10.1021/acs.biomac.0c00516] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
![]()
Tissue
engineering is currently one the fastest growing engineering
fields, requiring fabrication of advanced and multifunctional materials
to be used as scaffolds or dressing for tissue regeneration. In this
work, a bilayer matrix was fabricated by electrospinning of a hybrid
cellulose acetate nanofibers (CA) containing bioactive latex or Ciprofloxacin
over highly interconnected collagen (CSPG) 3D matrix previously obtained
by a freeze-drying process. The bilayer matrix was fabricated with
a nanofibrous part as the primary (top) layer and a spongy porous
part as the secondary (bottom) layer by combining electrospinning
and freeze-drying techniques to enhance the synergistic effect of
both materials corresponding to physical and biological properties.
The final material was physicochemically characterized using Fourier
transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). The bilayer matrix exhibited
nanofibrous and 3D porous structure with properties such as high porosity,
swelling, and stability required for soft-tissue-engineering applications.
Furthermore, the in vitro biological and fluorescence
properties of the matrix were tested against NIH 3T3 fibroblast and
human keratinocyte (HaCaT) cell lines and showed good cell adhesion
and proliferation over the bilayer matrix. Thus, the synergistic combination
of nanofibrous material deposition onto to the collagenous porous
material has proved efficient in the fabrication of a bilayer matrix
for skin-tissue-engineering applications.
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Affiliation(s)
- Giriprasath Ramanathan
- Biological Materials Lab, CSIR-Central Leather Research Institute (CLRI), Adyar, Chennai India.,Chemical Engineering for Health & Care, Bio&Chemical Systems Technology, Reactor Engineering and Safety, Department of Chemical Engineering, KU Leuven, Celestijnenlaan 200F bus 2424, B-3001 Leuven, Belgium
| | | | | | - Vimala Devi
- Biological Materials Lab, CSIR-Central Leather Research Institute (CLRI), Adyar, Chennai India
| | | | - Pedro Fardim
- Laboratory of Fibre and Cellulose Technology, Abo Akademi University, Porthansgatan 3, FI-20500 Abo, Finland.,Chemical Engineering for Health & Care, Bio&Chemical Systems Technology, Reactor Engineering and Safety, Department of Chemical Engineering, KU Leuven, Celestijnenlaan 200F bus 2424, B-3001 Leuven, Belgium
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29
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van der Poorten MLM, Van Gasse AL, Hagendorens MM, Faber MA, De Puysseleyr L, Elst J, Mertens CM, Sabato V, Ebo DG. Serum specific IgE antibodies in immediate drug hypersensitivity. Clin Chim Acta 2020; 504:119-124. [DOI: 10.1016/j.cca.2020.02.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 02/05/2020] [Accepted: 02/05/2020] [Indexed: 12/20/2022]
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30
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Lyons SA, Clausen M, Knulst AC, Ballmer-Weber BK, Fernandez-Rivas M, Barreales L, Bieli C, Dubakiene R, Fernandez-Perez C, Jedrzejczak-Czechowicz M, Kowalski ML, Kralimarkova T, Kummeling I, Mustakov TB, Papadopoulos NG, Popov TA, Xepapadaki P, Welsing PMJ, Potts J, Mills ENC, van Ree R, Burney PGJ, Le TM. Prevalence of Food Sensitization and Food Allergy in Children Across Europe. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2020; 8:2736-2746.e9. [PMID: 32330668 DOI: 10.1016/j.jaip.2020.04.020] [Citation(s) in RCA: 98] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 03/05/2020] [Accepted: 04/06/2020] [Indexed: 12/20/2022]
Abstract
BACKGROUND For adults, prevalence estimates of food sensitization (FS) and food allergy (FA) have been obtained in a standardized manner across Europe. For children, such estimates are lacking. OBJECTIVES To determine the prevalence of self-reported FA, FS, probable FA (symptoms plus IgE sensitization), and challenge-confirmed FA in European school-age children. METHODS Data on self-reported FA were collected through a screening questionnaire sent to a random sample of the general population of 7- to 10-year-old children in 8 European centers in phase I of the EuroPrevall study. Data on FS and probable FA were obtained in phase II, comprising an extensive questionnaire on reactions to 24 commonly implicated foods, and serology testing. Food challenge was performed in phase III. RESULTS Prevalence (95% CI) of self-reported FA ranged from 6.5% (5.4-7.6) in Athens to 24.6% (22.8-26.5) in Lodz; prevalence of FS ranged from 11.0% (9.7-12.3) in Reykjavik to 28.7% (26.9-30.6) in Zurich; and prevalence of probable FA ranged from 1.9% (0.8-3.5) in Reykjavik to 5.6% (3.6-8.1) in Lodz. In all centers, most food-sensitized subjects had primary (non-cross-reactive) FS. However, FS due to birch pollen related cross-reactivity was also common in Central-Northern Europe. Probable FA to milk and egg occurred frequently throughout Europe; to fish and shrimp mainly in the Mediterranean and Reykjavik. Peach, kiwi, and peanut were prominent sources of plant FA in most countries, along with notably hazelnut, apple, carrot, and celery in Central-Northern Europe and lentils and walnut in the Mediterranean. CONCLUSIONS There are large geograhical differences in the prevalence of FS and FA in school-age children across Europe. Both primary and cross-reactive FS and FA occur frequently.
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Affiliation(s)
- Sarah A Lyons
- Department of Dermatology and Allergology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.
| | - Michael Clausen
- Children's Hospital, Landspitali University Hospital, Reykjavik, Iceland
| | - André C Knulst
- Department of Dermatology and Allergology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Barbara K Ballmer-Weber
- Allergy Unit, Department of Dermatology, University Hospital of Zürich, Zürich, Switzerland; Faculty of Medicine, University of Zürich, Zürich, Switzerland; Clinic for Dermatology and Allergology, Kantonsspital St Gallen, St Gallen, Switzerland
| | | | - Laura Barreales
- Servicio de Medicina Preventiva, Epidemiology Unit, Hospital Clinico San Carlos, UCM, IdISSC, Madrid, Spain
| | - Christian Bieli
- Department of Paediatric Pulmonology, University Children's Hospital, Zürich, Switzerland
| | | | - Cristina Fernandez-Perez
- Servicio de Medicina Preventiva, Epidemiology Unit, Hospital Clinico San Carlos, UCM, IdISSC, Madrid, Spain
| | | | - Marek L Kowalski
- Department of Allergy and Immunology, Medical University of Lodz, Lodz, Poland
| | - Tanya Kralimarkova
- Clinical Centre of Allergology of the Alexandrovska Hospital, Medical University of Sofia, Sofia, Bulgaria
| | - Ischa Kummeling
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Tihomir B Mustakov
- Clinical Centre of Allergology of the Alexandrovska Hospital, Medical University of Sofia, Sofia, Bulgaria
| | - Nikolaos G Papadopoulos
- Allergy Department, 2nd Pediatric Clinic, University of Athens, Athens, Greece; Division of Infection, Immunity and Respiratory Medicine, Lydia Becker Institute of Immunology and Inflammation, University of Manchester, Manchester, United Kingdom
| | - Todor A Popov
- University Hospital Sv. Ivan Rilski, Sofia, Bulgaria
| | | | - Paco M J Welsing
- Division of Internal Medicine and Dermatology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - James Potts
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - E N Clare Mills
- Division of Infection, Immunity and Respiratory Medicine, Manchester Institute of Biotechnology & Lydia Becker Institute of Immunology and Inflammation, University of Manchester, Manchester, United Kingdom
| | - Ronald van Ree
- Department of Experimental Immunology and Department of Otorhinolaryngology, Amsterdam University Medical Centers, AMC, Amsterdam, The Netherlands
| | - Peter G J Burney
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Thuy-My Le
- Department of Dermatology and Allergology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
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31
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Monaci L, Pilolli R, De Angelis E, Crespo JF, Novak N, Cabanillas B. Food allergens: Classification, molecular properties, characterization, and detection in food sources. ADVANCES IN FOOD AND NUTRITION RESEARCH 2020; 93:113-146. [PMID: 32711861 DOI: 10.1016/bs.afnr.2020.03.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Food allergy is a large and growing public health problem in many areas of the world. The prevalence of food allergy has increased in the last decades in a very significant way in many world regions, particularly in developed countries. In that respect, the research field of food allergy has experienced an extensive growth and very relevant progress has been made in recent years regarding the characterization of food allergens, the study of their immunological properties, and their detection in food sources. Furthermore, food labeling policies have also been improved decidedly in recent years. For that immense progress made, it is about time to review the latest progress in the field of food allergy. In this review, we intend to carry out an extensive and profound overview regarding the latest scientific advances and knowledge in the field of food allergen detection, characterization, and in the study of the effects of food processing on the physico-chemical properties of food allergens. The advances in food labeling policies, and methodologies for the characterization of food allergens are also thoroughly reviewed in the present overview.
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Affiliation(s)
- Linda Monaci
- Institute of Sciences of Food Production, CNR-ISPA, Bari, Italy
| | - Rosa Pilolli
- Institute of Sciences of Food Production, CNR-ISPA, Bari, Italy
| | | | - Jesus F Crespo
- Department of Allergy, Research Institute Hospital 12 de Octubre de Madrid, Madrid, Spain
| | - Natalija Novak
- Department of Dermatology and Allergy, University Hospital Bonn, Bonn, Germany
| | - Beatriz Cabanillas
- Department of Allergy, Research Institute Hospital 12 de Octubre de Madrid, Madrid, Spain.
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32
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Ruiz‐Hornillos J, López‐Matas MA, Berges Jimeno P, Henríquez A, Blanco S, Seoane‐Rodríguez M, Mahíllo I, Carnés J. Profilin is a marker of severity in allergic respiratory diseases. Allergy 2020; 75:853-861. [PMID: 31804710 DOI: 10.1111/all.14140] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 11/05/2019] [Accepted: 11/14/2019] [Indexed: 11/29/2022]
Abstract
BACKGROUND The capacity of profilin to induce allergic symptoms in patients with respiratory allergy has been questioned. In this sense, the aim of this study was to investigate the correlation between profilin exposure and induction of symptoms in a prospective case-control study. METHODS The concentration of profilin as well as pollen levels in the air was measured. A diary score of symptoms was collected from allergic patients. Seventy-nine individuals were included in the study; fifty cases and 28 controls were positive or negative to profilin, respectively. Conjunctival and bronchial provocation tests were performed with purified profilin (Pho d 2) in a subgroup of cases and controls. RESULTS Profilin was detected in the environment on 133 days (maximum peak of 0.56 ng/m3 ). A positive correlation between profilin and pollen count of Olea and Poaceae was observed (ρ = 0.24; P < .001). Intensity of total, nasal and ocular symptoms was statistically higher in cases than in controls (P < .001). The risk of suffering symptoms, measured by the percentage of patients who presented any of the symptoms each day, was also higher in cases than in controls. The provocation test was positive in 95% of bronchial and 90% of conjunctival challenges in cases, and negative in all controls. CONCLUSIONS Profilin was detected in the environment and had the ability to induce a specific allergen response. Patients sensitized to this panallergen showed more symptoms and were more likely to have symptoms. Therefore, sensitization to profilin seems to be a marker of severity in patients with rhinoconjunctivitis and asthma mediated by pollen.
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Affiliation(s)
- Javier Ruiz‐Hornillos
- Allergy Unit. Hospital Universitario Infanta Elena. Valdemoro Madrid Spain
- Faculty of Medicine Universidad Francisco de Vitoria Madrid Spain
- Health Research Institute‐Fundación Jiménez Díaz University Hospital (IIS‐FJD) Madrid Spain
| | | | - Pilar Berges Jimeno
- Allergology Service Hospital Universitario Ramón y Cajal. Madrid Madrid Spain
| | - Aythamy Henríquez
- Allergy Unit. Hospital Universitario Infanta Elena. Valdemoro Madrid Spain
- Faculty of Medicine Universidad Francisco de Vitoria Madrid Spain
- Health Research Institute‐Fundación Jiménez Díaz University Hospital (IIS‐FJD) Madrid Spain
| | - Sandra Blanco
- Allergy Unit. Hospital Universitario Infanta Elena. Valdemoro Madrid Spain
- Faculty of Medicine Universidad Francisco de Vitoria Madrid Spain
- Health Research Institute‐Fundación Jiménez Díaz University Hospital (IIS‐FJD) Madrid Spain
| | - Marta Seoane‐Rodríguez
- Allergy Unit. Hospital Universitario Infanta Elena. Valdemoro Madrid Spain
- Faculty of Medicine Universidad Francisco de Vitoria Madrid Spain
- Health Research Institute‐Fundación Jiménez Díaz University Hospital (IIS‐FJD) Madrid Spain
| | - Ignacio Mahíllo
- Epidemiology Fundación Jiménez Díaz Madrid Spain
- Department of Medicine Universidad Autónoma de Madrid. CIBERES Instituto Carlos III Madrid Spain
| | - Jerónimo Carnés
- R&D Allergy & Immunology Unit Laboratorios LETI S.L.u Madrid Spain
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33
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Ebo DG, Bridts CH, Rihs HP. Hevea latex-associated allergies: piecing together the puzzle of the latex IgE reactivity profile. Expert Rev Mol Diagn 2020; 20:367-373. [PMID: 32056456 DOI: 10.1080/14737159.2020.1730817] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Introduction: IgE-mediated Hevea latex allergy and associated food-allergies constitute a significant health issue with serious consequences of diagnostic error. Hence, there is a need for more reliable confirmatory diagnostics.Areas covered: Here, we summarize the major limitations of conventional tests using native extracts and describe how piecing together the IgE reactivity profile can benefit correct diagnosis in difficult cases in whom conventional tests yield equivocal or negative results. A diagnostic algorithm integrating traditional sIgE and component-resolved diagnosis (CRD) is presented.Expert opinion: Moreover, it is clear that the discoveries in the field of the Hevea latex proteome will contribute to our understandings and accurate approach of sometimes complex cross-reactivity phenomena that extend beyond the 'latex-fruit syndrome.'
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Affiliation(s)
- Didier G Ebo
- University of Antwerp - University Hospital of Antwerp, Immunology-Allergology-Rheumatology, Infla-Med Centre of Excellence, University of Antwerp, Antwerp, Belgium.,Department of Immunology and Allergology, Jan Palfijn Ziekenhuis Gent, Ghent, Belgium
| | - Chris H Bridts
- University of Antwerp - University Hospital of Antwerp, Immunology-Allergology-Rheumatology, Infla-Med Centre of Excellence, University of Antwerp, Antwerp, Belgium
| | - Hans-Peter Rihs
- Ruhr-University Bochum, IPA - Institute for Prevention and Occupational Medicine, Bochum, Germany
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34
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Maity S, Bhakta S, Bhowmik M, Sircar G, Bhattacharya SG. Identification, cloning, and immunological studies on a major eggplant (Solanum melongena L.) allergen Sola m 1: A new member of profilin allergen family. Mol Immunol 2020; 118:210-221. [DOI: 10.1016/j.molimm.2019.12.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Revised: 12/04/2019] [Accepted: 12/19/2019] [Indexed: 11/17/2022]
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35
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Ansotegui IJ, Melioli G, Canonica GW, Caraballo L, Villa E, Ebisawa M, Passalacqua G, Savi E, Ebo D, Gómez RM, Luengo Sánchez O, Oppenheimer JJ, Jensen-Jarolim E, Fischer DA, Haahtela T, Antila M, Bousquet JJ, Cardona V, Chiang WC, Demoly PM, DuBuske LM, Ferrer Puga M, Gerth van Wijk R, González Díaz SN, Gonzalez-Estrada A, Jares E, Kalpaklioğlu AF, Kase Tanno L, Kowalski ML, Ledford DK, Monge Ortega OP, Morais Almeida M, Pfaar O, Poulsen LK, Pawankar R, Renz HE, Romano AG, Rosário Filho NA, Rosenwasser L, Sánchez Borges MA, Scala E, Senna GE, Sisul JC, Tang ML, Thong BYH, Valenta R, Wood RA, Zuberbier T. IgE allergy diagnostics and other relevant tests in allergy, a World Allergy Organization position paper. World Allergy Organ J 2020; 13:100080. [PMID: 32128023 PMCID: PMC7044795 DOI: 10.1016/j.waojou.2019.100080] [Citation(s) in RCA: 210] [Impact Index Per Article: 52.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Accepted: 10/08/2019] [Indexed: 02/06/2023] Open
Abstract
Currently, testing for immunoglobulin E (IgE) sensitization is the cornerstone of diagnostic evaluation in suspected allergic conditions. This review provides a thorough and updated critical appraisal of the most frequently used diagnostic tests, both in vivo and in vitro. It discusses skin tests, challenges, and serological and cellular in vitro tests, and provides an overview of indications, advantages and disadvantages of each in conditions such as respiratory, food, venom, drug, and occupational allergy. Skin prick testing remains the first line approach in most instances; the added value of serum specific IgE to whole allergen extracts or components, as well as the role of basophil activation tests, is evaluated. Unproven, non-validated, diagnostic tests are also discussed. Throughout the review, the reader must bear in mind the relevance of differentiating between sensitization and allergy; the latter entails not only allergic sensitization, but also clinically relevant symptoms triggered by the culprit allergen.
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Key Words
- AAAAI, American Academy of Allergy Asthma and Immunology
- ABA, Allergen Bead Array
- ACAAI, American College of Allergy Asthma and Immunology
- AEC, Allergen Exposure Chambers
- AIT, allergen immunotherapy
- AP, Alkaline Phosphatase
- AU/mL, Allergenic Units milliLiter
- Allergy
- Anti-IgE, Antibody against IgE
- BAT, Basophil Activation Test
- BAU/mL, Biologic Allergenic Units milliLiter
- CBA, Cytometric Bead Array
- CCD, Cross-reactive Carbohydrate Determinants
- CDER, Center for Drug Evaluation and Research (USA)
- CL, Chemiluminescence
- CaFE, Calibrated Fluorescence Enhancement
- DBPCFC, Double-Blind Placebo-Controlled Food Challenge
- Diagnostic strategies
- EAACI, European Academy of Allergy and Immunology
- EIA, Enzyme Immune Assay
- ELISA, Enzyme Linked Immuno Sorbent Analysis
- EMEA, European MEdicine Agencies
- ENPP-3, EctoNucleotide Pyrophosphatase/Phosphodiesterase 3
- FACS, Fluorescence-Activated Cell Sorting
- FDA, Food and Drug Administration (U.S. Department of Health and Human Services)
- FEIA, Fluorescent Enzyme Immunoassays
- FcεRI, High affinity IgE receptor
- H1, Histamine 1 receptor
- H2, Histamine 2 receptor
- HPO, Horseradish Peroxidase
- IDT, Intradermal Test
- ISAC, Immuno-Solid phase Allergen Chip
- IUIS, International Union of Immunological Societies
- IVD, in vitro diagnostic tool
- IgE
- IgE, immunoglobulin E
- In vitro tests
- LAMP-3, Lysosomal-Associated Membrane Protein
- MBAD, Molecule Based Allergy Diagnostics
- MRGPRX2, Mas-related G protein receptor 2
- NIH, National Institutes of Health (USA)
- NMBAs, NeuroMuscular Blocking Agents
- NPA, Negative Percent Agreement
- NSAIDs, Non-Steroidal Anti-Inflammatory Drugs
- PPA, Positive Percent Agreement
- PPT, Prick-Prick Test
- RAST, Radio Allergo Sorbent Test
- SCAR, severe cutaneous adverse drug reactions
- SPT, Skin prick test
- Skin tests
- kUA/L, kilo Units of Allergen/Liter for allergen-specific IgE antibody assays
- mAb, Monoclonal Antibody
- pNPP, p-Nitrophenylphosphate
- sIgE, specific IgE
- w/v, weight /volume
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Affiliation(s)
| | - Giovanni Melioli
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy
| | - Giorgio Walter Canonica
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Personalized Medicine, Asthma and Allergy, Humanitas Research Hospital, Rozzano, Milan, Italy
| | - Luis Caraballo
- Institute for Immunological Research, University of Cartagena, Cartagena, Colombia
| | - Elisa Villa
- Azienda Sanitaria Locale di Vercelli, S.C. Pneumologia, Vercelli, Italia
| | - Motohiro Ebisawa
- Clinical Research Center for Allergy and Rheumatology, Sagamihara National Hospital, Sagamihara, Kanagawa, Japan
| | - Giovanni Passalacqua
- Allergy and Respiratory Diseases, IRCCS Policlinico San Martino, University of Genoa, Genoa, Italy
| | | | - Didier Ebo
- Department of Immunology - Allergology - Rheumatology, Antwerp University Hospital, Antwerp University, Department Immunology and Allergology, AZ Jan Palfijn Gent, Ghent, Belgium
| | | | - Olga Luengo Sánchez
- Allergy Section, Department of Internal Medicine, Vall d’Hebron University Hospital, Barcelona, Spain
| | | | - Erika Jensen-Jarolim
- Institute for Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, The Interuniversity Messerli Research Institute, University of Veterinary Medicine Vienna, Medical University Vienna, Vienna, Austria
| | - David A. Fischer
- Fischer Medicine Professional Corporation, Barrie, Ontario, Canada
| | - Tari Haahtela
- Skin and Allergy Hospital, University of Helsinki, Helsinki, Finland
| | | | - Jean J. Bousquet
- MACVIA-France, Montpellier, France
- INSERM, Villejuif, France
- Université Versailles St-Quentin-en-Yvelines, Montigny le Bretonneux, France
- Euforea, Brussels, Belgium
- CHU Montpellier, France
| | - Victoria Cardona
- Universitat Autónoma de Barcelona, Hospital Universitario Vall d'Hebron, Servicio de Medicina Interna, Sección de Alergología, Barcelona, Spain
| | - Wen Chin Chiang
- Mount Elizabeth Medical Centre, Chiang Children's Allergy & Asthma Clinic, Singapore, Singapore
| | - Pascal M. Demoly
- University Hospital Montpellier, Montpellier, France
- Sorbonne Université, Paris, France
| | | | - Marta Ferrer Puga
- The Unidad de Educación Médica, Department of Medical Education, School of Medicine, Clinica Universitad de Navarra, Navarra, Spain
| | | | | | | | | | | | | | - Marek L. Kowalski
- Faculty of Medicine, Department of Clinical Immunology & Allergy, Medical University of Łódź, Łódź, Poland
| | | | | | | | - Oliver Pfaar
- Department of Otorhinolaryngology, Head and Neck Surgery, Section of Rhinology and Allergy, University Hospital Marburg, Philipps-Universität Marburg, Marburg, Germany
| | - Lars K. Poulsen
- Gentofte University Hospital, Lab for Allergology, Allergy Clinic, Hellerup, Denmark
| | - Ruby Pawankar
- Nippon Medical School, Dept. of Otolaryngology, Tokyo, Japan
| | - Harald E. Renz
- University Hospital GI & MR GmbH, Institute of Laboratory Medicine & Pathology, Standort Marburg, Marburg, Germany
| | | | | | - Lanny Rosenwasser
- University of Missouri at Kansas City, School of Medicine, Kansas City, MO, USA
| | | | - Enrico Scala
- Experimental Allergy Unit, Istituto Dermopatico dell'Immacolata, Rome, Italy
| | | | | | - Mimi L.K. Tang
- Royal Children's Hospital, Department of Allergy & Immunology, Parkville, Victoria, Australia
| | - Bernard Yu-Hor Thong
- Tan Tock Seng Hospital, Deptartment of Rheumatology, Allergy & Immunology, 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
- NRC Institute of Immunology FMBA of Russia, Moscow, Russia
- Laboratory of Immunopathology, Department of Clinical Immunology and Allergy, Sechenov First Moscow State Medical University, Moscow, Russia
| | - Robert A. Wood
- Johns Hopkins University School of Medicine, Johns Hopkins Hospital, Baltimore, MD, USA
| | - Torsten Zuberbier
- Campus Charite Mitte, Klinik fur Dermatologie & Allergologie, Berlin, Germany
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Santos da Silva E, Marques Ponte JC, Barbosa da Silva M, Silva Pinheiro C, Carvalho Pacheco LG, Ferreira F, Briza P, Alcantara-Neves NM. Proteomic Analysis Reveals Allergen Variability among Breeds of the Dust Mite Blomia tropicalis. Int Arch Allergy Immunol 2019; 180:159-172. [PMID: 31563904 DOI: 10.1159/000501964] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Accepted: 07/06/2019] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND The dawn of the "omics" technologies has changed allergy research, increasing the knowledge and identification of new allergens. However, these studies have been almost restricted to Dermatophagoides spp. Although Blomia tropicalis has long been established as a clinically important source of allergens, a thorough proteomic characterization is still lacking for this dust mite. OBJECTIVE To increase knowledge of B. tropicalis allergens through proteomic analysis. METHODS Eleven in-bred lineages of B. tropicalis were obtained from 11 unique different pregnant females. Their somatic extracts were analyzed and compared with a commercially available extract by liquid chromatography tandem mass spectrometry (LC-MS/MS). RESULTS Considerable differences in the protein expression profiles were found among the breeds, and most of them displayed higher expression levels of major allergens than the commercially available extract. Blo t 2 was the most prominent allergenic protein in the analyzed extracts. Six identified allergens and 14 isoforms have not yet been recognized by IUIS. Conversely, 3 previously recognized B. tropicalis allergens were not found. CONCLUSIONS The clear impact of inbreeding on allergen content shown by our study leads us to conclude that the quantification and/or identification of allergens from in-bred lines should be routinely considered for mite cultivation in order to select breeds with higher amounts of major allergens. In this sense, LC-MS/MS may be a useful method to achieve this quality control for research and commercial purposes.
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Affiliation(s)
- Eduardo Santos da Silva
- Laboratório de Alergia e Acarologia, Departamento de Ciências da Biointeração, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil.,Department of Biosciences, University of Salzburg, Salzburg, Austria.,Programa de Pós-Graduação em Biotecnologia da Rede Nordeste de Biotecnologia (RENORBIO), Natal, Brazil
| | - João Carlos Marques Ponte
- Laboratório de Alergia e Acarologia, Departamento de Ciências da Biointeração, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil.,Department of Biosciences, University of Salzburg, Salzburg, Austria
| | - Márcia Barbosa da Silva
- Laboratório de Alergia e Acarologia, Departamento de Ciências da Biointeração, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil.,Department of Biosciences, University of Salzburg, Salzburg, Austria
| | - Carina Silva Pinheiro
- Laboratório de Alergia e Acarologia, Departamento de Ciências da Biointeração, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil
| | - Luis Gustavo Carvalho Pacheco
- Laboratório de Alergia e Acarologia, Departamento de Ciências da Biointeração, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil
| | - Fatima Ferreira
- Department of Biosciences, University of Salzburg, Salzburg, Austria
| | - Peter Briza
- Department of Biosciences, University of Salzburg, Salzburg, Austria
| | - Neuza Maria Alcantara-Neves
- Laboratório de Alergia e Acarologia, Departamento de Ciências da Biointeração, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil, .,Programa de Pós-Graduação em Biotecnologia da Rede Nordeste de Biotecnologia (RENORBIO), Natal, Brazil,
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Calamelli E, Liotti L, Beghetti I, Piccinno V, Serra L, Bottau P. Component-Resolved Diagnosis in Food Allergies. ACTA ACUST UNITED AC 2019; 55:medicina55080498. [PMID: 31426616 PMCID: PMC6723663 DOI: 10.3390/medicina55080498] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 07/31/2019] [Accepted: 08/15/2019] [Indexed: 12/18/2022]
Abstract
Component-resolved diagnostics (CRD) in food allergies is an approach utilized to characterize the molecular components of each allergen involved in a specific IgE (sIgE)-mediated response. In the clinical practice, CRD can improve diagnostic accuracy and assist the physician in many aspects of the allergy work-up. CRD allows for discriminatory co-sensitization versus cross-sensitization phenomena and can be useful to stratify the clinical risk associated with a specific sensitization pattern, in addition to the oral food challenge (OFC). Despite this, there are still some unmet needs, such as the risk of over-prescribing unnecessary elimination diets and adrenaline auto-injectors. Moreover, up until now, none of the identified sIgE cutoff have shown a specificity and sensitivity profile as accurate as the OFC, which is the gold standard in diagnosing food allergies. In light of this, the aim of this review is to summarize the most relevant concepts in the field of CRD in food allergy and to provide a practical approach useful in clinical practice.
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Affiliation(s)
| | - Lucia Liotti
- Pediatric Unit, Civic Hospital, 60019 Senigallia, Italy
| | - Isadora Beghetti
- Pediatric Unit, Department of Medical and Surgical Sciences (DIMEC), S.Orsola-Malpighi Hospital, University of Bologna, 40138 Bologna, Italy
| | | | - Laura Serra
- Pediatric and Neonatology Unit, Imola Hospital, 40026 Imola, Italy
| | - Paolo Bottau
- Pediatric and Neonatology Unit, Imola Hospital, 40026 Imola, Italy
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Abdel-Aty AM, Hamed MB, Salama WH, Ali MM, Fahmy AS, Mohamed SA. Ficus carica, Ficus sycomorus and Euphorbia tirucalli latex extracts: Phytochemical screening, antioxidant and cytotoxic properties. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2019. [DOI: 10.1016/j.bcab.2019.101199] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Biedermann T, Winther L, Till SJ, Panzner P, Knulst A, Valovirta E. Birch pollen allergy in Europe. Allergy 2019; 74:1237-1248. [PMID: 30829410 DOI: 10.1111/all.13758] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 01/22/2019] [Accepted: 01/28/2019] [Indexed: 12/25/2022]
Abstract
Birch and other related trees of the families Betulaceae and Fagaceae (alder, hazel, oak, hornbeam, chestnut, and beech) constitute the birch homologous group. This grouping is primarily based on the extensive IgE cross-reactivity of allergen homologs to the major birch allergen Bet v 1. Birch pollen is the most dominant tree pollen in Northern and Central Europe and is a major cause of allergic rhinitis and, possibly, asthma symptoms. Over the last few decades, levels of birch pollen have risen and the period of exposure has increased due to climate changes. Subsequently, the prevalence of birch pollen sensitization has also increased. The cross-reactivity and sequential pollen seasons within the birch homologous group create a prolonged symptomatic allergy period beyond birch pollen alone. Furthermore, many plant food allergens contain homologs to Bet v 1, meaning that the majority of patients with birch pollen allergy suffer from secondary pollen food syndrome (PFS). As a result, the negative impact on health-related quality of life (HRQoL) in patients allergic to birch pollen is significant. The purpose of this manuscript was to narratively review topics of interest such as taxonomy, cross-reactivity, prevalence, clinical relevance, PFS, and HRQoL with regard to birch pollen allergy from a European perspective.
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Affiliation(s)
- T. Biedermann
- Department of Dermatology and Allergology Technical University of Munich Munich Germany
| | - L. Winther
- Allergy Clinic Department of Dermato‐Allergology Gentofte Hospital Copenhagen Denmark
| | - S. J. Till
- Kings College London Guy's Hospital London UK
| | - P. Panzner
- Department of Immunology and Allergology Faculty of Medicine in Pilsen Charles University Prague Czech Republic
| | - A. Knulst
- Department of Dermatology/Allergology University Medical Center Utrecht Utrecht University Utrecht the Netherlands
| | - E. Valovirta
- Department of Lung Diseases and Clinical Allergology University of Turku and Allergy Clinic Terveystalo, Turku Finland
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Brandi S, Poulsen L, Garvey L. The Clinical Relevance of Natural Rubber Latex-Specific IgE in Patients Sensitized to Timothy Grass Pollen. Int Arch Allergy Immunol 2019; 178:345-354. [DOI: 10.1159/000495580] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 11/16/2018] [Indexed: 11/19/2022] Open
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Pitsios C, Iliopoulou A, Kontogianni M, Papagregoriou G. Detection of profilin in SPT extracts that are supposed to contain it. Allergol Immunopathol (Madr) 2019; 47:12-15. [PMID: 30193888 DOI: 10.1016/j.aller.2018.05.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2017] [Revised: 04/10/2018] [Accepted: 05/10/2018] [Indexed: 11/17/2022]
Abstract
INTRODUCTION AND OBJECTIVES Profilin is a panallergen contained in pollen, plant foods and latex. Although cross-reactivity is expected while performing skin prick tests (SPT) with allergens that contain profilin, this is not always noticed. The purpose of this study was to detect if profilin is contained in the commercial SPT extracts of pollen and plant foods which, in their fresh form, contain determined epitopes of profilin. MATERIAL AND METHODS Commercial SPT extracts of different pharmaceuticals were analyzed using sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE). The study included purified palm date profilin, peach (whole, pulp and peel extracts), hazelnut, Olea europea, Parietaria judaica and Phleum pratense. RESULTS Profilin was detected in all, but peach extracts; it was neither contained in the whole peach extract nor in the ones of peel or pulp. CONCLUSION The only accurate way to detect sensitization to profilin, while performing SPT, is the use of purified profilin extract. Even if a plant food or pollen contain an identified molecule of profilin, the relevant SPT commercial extract may not.
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Affiliation(s)
- C Pitsios
- Medical School, University of Cyprus, P.O. Box 20537, 1678 Nicosia, Cyprus.
| | - A Iliopoulou
- Department of Nutrition and Dietetics, Harokopio University, Eleftheriou Venizelou 70, 176 76 Kallithea, Athens, Greece
| | - M Kontogianni
- Department of Nutrition and Dietetics, Harokopio University, Eleftheriou Venizelou 70, 176 76 Kallithea, Athens, Greece
| | - G Papagregoriou
- Molecular Medicine Research Center and Laboratory of Molecular and Medical Genetics, Department of Biological Sciences, University of Cyprus, P.O. Box 20537, 1678 Nicosia, Cyprus
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Chruszcz M, Kapingidza AB, Dolamore C, Kowal K. A robust method for the estimation and visualization of IgE cross-reactivity likelihood between allergens belonging to the same protein family. PLoS One 2018; 13:e0208276. [PMID: 30496313 PMCID: PMC6264518 DOI: 10.1371/journal.pone.0208276] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 11/14/2018] [Indexed: 12/11/2022] Open
Abstract
Among the vast number of identified protein families, allergens emanate from relatively few families which translates to only a small fraction of identified protein families. In allergy diagnostics and immunotherapy, interactions between immunoglobulin E and allergens are crucial because the formation of an allergen-antibody complex is necessary for triggering an allergic reaction. In allergic diseases, there is a phenomenon known as cross-reactivity. Cross-reactivity describes a situation where an individual has produced antibodies against a particular allergenic protein, but said antibodies fail to discriminate between the original sensitizer and other similar proteins that usually belong to the same family. To expound the concept of cross-reactivity, this study examines ten protein families that include allergens selected specifically for the analysis of cross-reactivity. The selected allergen families had at least 13 representative proteins, overall folds that differ significantly between families, and include relevant allergens with various potencies. The selected allergens were analyzed using information on sequence similarities and identities between members of the families as well as reports on clinically relevant cross-reactivities. Based on our analysis, we propose to introduce a new A-RISC index (Allergens’–Relative Identity, Similarity and Cross-reactivity) which describes homology between two allergens belonging to the same protein family and is used to predict the likelihood of cross-reactivity between them. Information on sequence similarities and identities, as well as on the values of the proposed A-RISC index is used to introduce four categories describing a risk of a cross-reactive reaction, namely: high, medium-high, medium-low and low. The proposed approach can facilitate analysis in component-resolved allergy diagnostics, generation of avoidance guidelines for allergic individuals, and help with the design of immunotherapy.
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Affiliation(s)
- Maksymilian Chruszcz
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina, United States of America
- * E-mail:
| | - A. Brenda Kapingidza
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina, United States of America
| | - Coleman Dolamore
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina, United States of America
| | - Krzysztof Kowal
- Department of Allergology and Internal Medicine, Medical University of Bialystok, Bialystok, Poland
- Department of Experimental Allergology and Immunology, Medical University of Bialystok, Bialystok, Poland
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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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Oeo-Santos C, Mas S, Quiralte J, Colás C, Blanca M, Fernández J, Feo Brito F, Villalba M, Barderas R. A Hypoallergenic Polygalacturonase Isoform from Olive Pollen Is Implicated in Pollen-Pollen Cross-Reactivity. Int Arch Allergy Immunol 2018; 177:290-301. [PMID: 30173224 DOI: 10.1159/000491027] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 06/19/2018] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Cross-reactivity reactions between allergenic polygalacturonases (PGs) from different biological sources, especially foods and pollens from the Oleaceae family, have been described using Salsola kali PG (Sal k 6). No PG from olive pollen has been characterized to date, hampering further knowledge about cross-reactions through PGs. OBJECTIVES The aim of this work was to determine the potential allergenicity of the PG from olive pollen and clarify its role in cross-reactivity. METHODS A cDNA-encoding olive pollen PG sequence was subcloned into the pET41b vector and used to transform BL21(DE3) Escherichia coli cells to produce a His-tag fusion recombinant protein. The allergenic properties of olive pollen PG were determined by immunoblotting and ELISA in comparison to Sal k 6. The cross-reactivity potential of the protein with other pollen sources was analyzed by inhibition immunoassays. RESULTS The existence of other isoforms of Ole e 14 with different allergenicity was confirmed by proteomics and a meta-analysis of the recently reported olive genome. Sal k 6 showed a higher IgE recognition than Ole e 14 regardless of patient sensitization, suggesting the existence of more allergenic Ole e 14 isoforms in olive pollen. IgG and IgE inhibition assays supported the existence of cross-reactions between them and with other PGs from Oleaceae and Poaceae plant families. CONCLUSIONS A new allergen from olive pollen, Ole e 14, has been identified, produced as a recombinant isoform, and structurally and immunologically characterized. Its role in cross-reactivity has been confirmed and, due to its smaller IgE binding capacity, it could have an important role for therapeutic purposes.
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Affiliation(s)
- Carmen Oeo-Santos
- Departamento Bioquímica y Biología Molecular I, Universidad Complutense de Madrid, Madrid, Spain
| | - Salvador Mas
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico, Universitat Politècnica de València, Valencia, Spain
| | - Joaquín Quiralte
- Departamento Alergología, Hospital Universitario Virgen del Rocío, Sevilla, Spain
| | - Carlos Colás
- Hospital Clínico Universitario "Lozano Blesa", Zaragoza, Spain
| | - Miguel Blanca
- Unidad de Alergología, Hospital Universitario Regional de Málaga-IBIMA, UMA, Málaga, Spain
| | - Javier Fernández
- Departamento Medicina Clínica, Universidad Miguel Hernández, Alicante, Spain
| | | | - Mayte Villalba
- Departamento Bioquímica y Biología Molecular I, Universidad Complutense de Madrid, Madrid,
| | - Rodrigo Barderas
- Departamento Bioquímica y Biología Molecular I, Universidad Complutense de Madrid, Madrid, Spain.,UFIEC, CROSADIS, ISCIII, Majadahonda, Spain
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Georgiadou EC, Kowalska E, Patla K, Kulbat K, Smolińska B, Leszczyńska J, Fotopoulos V. Influence of Heavy Metals (Ni, Cu, and Zn) on Nitro-Oxidative Stress Responses, Proteome Regulation and Allergen Production in Basil ( Ocimum basilicum L.) Plants. FRONTIERS IN PLANT SCIENCE 2018; 9:862. [PMID: 30026745 PMCID: PMC6041727 DOI: 10.3389/fpls.2018.00862] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 06/04/2018] [Indexed: 05/06/2023]
Abstract
One of the most significant biosphere contamination problems worldwide is derived from heavy metals. Heavy metals can be highly reactive and toxic according to their oxidation levels. Their toxic effects are associated with the increased production of reactive oxygen species (ROS) and cellular damage induced in plants. The present study focuses on the effects of nickel (Ni), copper (Cu), and zinc (Zn) applied to the soil on the antioxidant response and allergen production in the aromatic plant basil (Ocimum basilicum L.) following a combined physiological, biochemical and analytical approach. The concentrations used for the three heavy metals were based on the 2002 Regulation of the Polish Ministry of the Environment on Soil Quality Standards [(i) agricultural land (group B): Ni 100 ppm, Ni 210 ppm, Cu 200 ppm, Cu 500 ppm, Zn 720 ppm and (ii) industrial land (group C): Ni 500 ppm, Cu 1000 ppm, Zn 1500 ppm, Zn 3000 ppm]. The highest physiological and cellular damage in basil plants was caused by Cu and Zn. Increasing concentrations of Cu resulted in a further increase in cellular damage and nitro-oxidative stress, correlating with an induction in activity of reactive oxygen and nitrogen species metabolism enzymes (SOD, CAT, APX, NR). Treatment with Cu led to increased concentration of the allergenic protein profilin, while increasing concentrations of Cu and Zn led to a decrease in the concentration of total proteins (likely due to proteolysis) and antioxidant capacity. Interestingly, severe Cu stress resulted in the accumulation of specific proteins related to transpiration and photosynthetic processes. On the basis of these findings, Ni stress in basil plants appears to be less damaging and with lower allergenic potential compared with Cu and Zn stress, while Cu-stressed basil plants experience most detrimental effects and display highest allergen production.
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Affiliation(s)
- Egli C. Georgiadou
- Department of Agricultural Sciences, Biotechnology and Food Science, Cyprus University of Technology, Limassol, Cyprus
| | - Ewa Kowalska
- Institute of General Food Chemistry, Faculty of Biotechnology and Food Sciences, Lodz University of Technology, Łódź, Poland
| | - Katarzyna Patla
- Institute of General Food Chemistry, Faculty of Biotechnology and Food Sciences, Lodz University of Technology, Łódź, Poland
| | - Kamila Kulbat
- Institute of General Food Chemistry, Faculty of Biotechnology and Food Sciences, Lodz University of Technology, Łódź, Poland
| | - Beata Smolińska
- Institute of General Food Chemistry, Faculty of Biotechnology and Food Sciences, Lodz University of Technology, Łódź, Poland
| | - Joanna Leszczyńska
- Institute of General Food Chemistry, Faculty of Biotechnology and Food Sciences, Lodz University of Technology, Łódź, Poland
| | - Vasileios Fotopoulos
- Department of Agricultural Sciences, Biotechnology and Food Science, Cyprus University of Technology, Limassol, Cyprus
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Lund G, Brand S, Ramos T, Jimeno L, Boissy P, Vega F, Arina M, Christensen LH, Hoof I, Meno KH, Barber D, Blanco C, Würtzen PA, Andersen PS. Strong and frequent T-cell responses to the minor allergen Phl p 12 in Spanish patients IgE-sensitized to Profilins. Allergy 2018; 73:1013-1021. [PMID: 29121407 DOI: 10.1111/all.13351] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/03/2017] [Indexed: 01/17/2023]
Abstract
BACKGROUND Profilins are dominant pan-allergens known to cause cross-sensitization, leading to clinical symptoms such as pollen-food syndrome. This study aimed to determine the T-cell response to Phl p 12 in profilin-sensitized patients, by measuring the prevalence, strength and cross-reactivity to clinically relevant profilins. METHODS The release of Phl p allergens from pollen was determined by mass spectrometry and immunochemistry. T-cell responses, epitope mapping and cross-reactivity to profilins (Phl p 12, Ole e 2, Bet v 2 and Mal d 4) were measured in vitro using PBMCs from 26 Spanish grass-allergic donors IgE-sensitized to profilin. Cross-reactivity was addressed in vivo using 2 different mouse strains (BALB/c and C3H). RESULTS Phl p 12 and Phl p 1 are released from pollen simultaneously and in similar amounts. Both T-cell response frequency (17/26 donors) and strength were comparable between Phl p 12 and Phl p 1. T-cell cross-reactivity to other profilins correlated with overall sequence homology, and 2 immunodominant epitope regions of Phl p 12 were identified. Data from mice immunized with Phl p 12 showed that cross-reactivity to Bet v 2 was mediated by conserved epitopes and further influenced by additional genetic factors, likely to be MHC II. CONCLUSION The strength, prevalence and cross-reactivity of T-cell responses towards Phl p 12 are comparable to the major allergen Phl p 1, which supports the hypothesis that T cells to Phl p 12 can play an important role in development of allergic symptoms, such as those associated with pollen-food syndrome.
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Affiliation(s)
- G. Lund
- Global Research; ALK-Abelló; Hørsholm Denmark
| | - S. Brand
- Global Research; ALK-Abelló; Hørsholm Denmark
| | - T. Ramos
- Servicio de Alergia; Hospital Universitario de La Princesa; Instituto de Investigación Sanitaria Princesa (IP); Madrid Spain
| | - L. Jimeno
- Global Research; ALK-Abelló; Madrid Spain
| | - P. Boissy
- Global Research; ALK-Abelló; Madrid Spain
| | - F. Vega
- Servicio de Alergia; Hospital Universitario de La Princesa; Instituto de Investigación Sanitaria Princesa (IP); Madrid Spain
| | - M. Arina
- Global Research; ALK-Abelló; Madrid Spain
| | | | - I. Hoof
- Global Research; ALK-Abelló; Hørsholm Denmark
| | - K. H. Meno
- Global Research; ALK-Abelló; Hørsholm Denmark
| | - D. Barber
- IMMA School of Medicine; Universidad CEU San Pablo; Madrid Spain
| | - C. Blanco
- Servicio de Alergia; Hospital Universitario de La Princesa; Instituto de Investigación Sanitaria Princesa (IP); Madrid Spain
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Rosace D, Gomez-Casado C, Fernandez P, Perez-Gordo M, Dominguez MDC, Vega A, Belver MT, Ramos T, Vega F, Marco G, de Pedro M, Sanchez L, Arnas MDLM, Santaolalla M, Saez MÁ, Benedé S, Fernandez-Rivas M, Blanco C, Alvarado MI, Escribese MM, Barber D. Profilin-mediated food-induced allergic reactions are associated with oral epithelial remodeling. J Allergy Clin Immunol 2018; 143:681-690.e1. [PMID: 29705246 DOI: 10.1016/j.jaci.2018.03.013] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 02/26/2018] [Accepted: 03/16/2018] [Indexed: 01/14/2023]
Abstract
BACKGROUND In areas of high exposure to grass pollen, allergic patients are frequently sensitized to profilin, and some experience severe profilin-mediated food-induced reactions. This specific population of patients is ideal to study the relationship between respiratory and food allergies. OBJECTIVE We sought to determine the role of oral mucosal epithelial barrier integrity in profilin-mediated allergic reactions. METHODS Thirty-eight patients with profilin allergy stratified into mild or severe according to their clinical history and response to a profilin challenge test and 6 nonallergic subjects were recruited. Oral mucosal biopsies were used for measurement of CD11c, CD3, CD4, tryptase, claudin-1, occludin, E-cadherin, and vascular endothelial growth factor A levels; Masson trichrome staining; and POSTN, IL33, TPSAB, TPSB, and CMA gene expression analysis by using quantitative RT-PCR. Blood samples were used for basophil activation tests. RESULTS Distinct features of the group with severe allergy included the following: (1) impaired epithelial integrity with reduced expression of claudin-1, occludin, and E-cadherin and decreased numbers of epithelial cells, which is indicative of acanthosis, higher collagen deposition, and angiogenesis; (2) inflammatory immune response in the mucosa, with an increased number of CD11c+ and CD4+ infiltrates and increased expression of the cytokine genes POSTN and IL33; and (3) a 10-fold increased sensitivity of basophils to profilin. CONCLUSIONS Patients with profilin allergy present with significant damage to the oral mucosal epithelial barrier, which might allow profilin penetration into the oral mucosa and induction of local inflammation. Additionally, severely allergic patients presented with increased sensitivity of effector cells.
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Affiliation(s)
- Domenico Rosace
- Instituto de Medicina Molecular Aplicada, Grupo Hospital de Madrid, Universidad San Pablo-CEU, Madrid, Spain
| | - Cristina Gomez-Casado
- Instituto de Medicina Molecular Aplicada, Grupo Hospital de Madrid, Universidad San Pablo-CEU, Madrid, Spain
| | - Paloma Fernandez
- Instituto de Medicina Molecular Aplicada, Grupo Hospital de Madrid, Universidad San Pablo-CEU, Madrid, Spain
| | - Marina Perez-Gordo
- Departamento de Ciencias Médicas Básicas, Facultad de Medicina, Universidad San Pablo-CEU, Madrid, Spain
| | | | - Angel Vega
- Hospital Virgen del Puerto, Plasencia, Cáceres, Spain
| | - María Teresa Belver
- Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria Princesa (IP), Madrid, Spain
| | - Tania Ramos
- Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria Princesa (IP), Madrid, Spain
| | - Francisco Vega
- Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria Princesa (IP), Madrid, Spain
| | | | | | | | | | | | | | - Sara Benedé
- Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Madrid, Spain
| | | | - Carlos Blanco
- Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria Princesa (IP), Madrid, Spain
| | | | - María M Escribese
- Instituto de Medicina Molecular Aplicada, Grupo Hospital de Madrid, Universidad San Pablo-CEU, Madrid, Spain; Departamento de Ciencias Médicas Básicas, Facultad de Medicina, Universidad San Pablo-CEU, Madrid, Spain.
| | - Domingo Barber
- Instituto de Medicina Molecular Aplicada, Grupo Hospital de Madrid, Universidad San Pablo-CEU, Madrid, Spain
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Iliopoulou A, Petrodimopoulou M, Konstantakopoulou M, Pasioti M, Papadopoulou A, Mikos N, Kompoti E, Korakianitis I, Kontogianni M, Pitsios C. Profilin sensitization and its clinical relevance to a population of atopic adults in Greece. REVUE FRANCAISE D ALLERGOLOGIE 2018. [DOI: 10.1016/j.reval.2017.11.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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49
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Blankestijn MA, Knulst AC, Knol EF, Le TM, Rockmann H, Otten HG, Klemans RJB. Sensitization to PR-10 proteins is indicative of distinctive sensitization patterns in adults with a suspected food allergy. Clin Transl Allergy 2017; 7:42. [PMID: 29201345 PMCID: PMC5700688 DOI: 10.1186/s13601-017-0177-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 10/31/2017] [Indexed: 11/30/2022] Open
Abstract
Background The extent of co-sensitization within and between food protein families in an adult population is largely unknown. This study aimed to identify the most frequently recognized components in the PR-10 and storage protein family, as well as patterns in (co-)sensitization, in a birch-endemic area. Methods Results of ImmunoCAP ISAC, performed during routine care in Dutch adult outpatients suspected of food allergy, were collected. Results A total of 305 patients were selected, aged 16–79 years (median 32 years). Sensitization to one or more PR-10 proteins was most frequent (74% of all subjects), followed by 35% to storage protein and 15% to nsLTPs. Within the PR-10 family, subjects were most often sensitized to Bet v 1 (73% of 305), Cor a 1.04 (72%) and Mal d 1 (68%). Sensitization to PR-10s from soy, celery and kiwi occurred distinctively less often (< 55% of Bet v 1 sensitized subjects) compared to other food PR-10s (all > 70%). Subjects sensitized to these ‘less common PR-10 proteins’ were sensitized to more food and inhalant components on the ISAC, compared to subjects sensitized to ‘common PR-10 proteins’ (median 22 vs 13 out of 112, p < 0.0001). Seven subjects demonstrated sensitization to food PR-10 proteins, without concomitant sensitization to pollen PR-10s. Within the storage proteins, sensitization to multiple peanut allergens was most common (on average 3 out of 4). Conclusions Sensitization to PR-10 food proteins could occur without concomitant sensitization to common PR-10 from pollen in a subset of subjects. Less commonly recognized PR-10 proteins appear to be an indication of polysensitization. Electronic supplementary material The online version of this article (10.1186/s13601-017-0177-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Mark A Blankestijn
- Department of Dermatology and Allergology, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584 CX Utrecht, The Netherlands
| | - André C Knulst
- Department of Dermatology and Allergology, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584 CX Utrecht, The Netherlands
| | - Edward F Knol
- Department of Dermatology and Allergology, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584 CX Utrecht, The Netherlands.,Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584 CX Utrecht, The Netherlands
| | - Thuy-My Le
- Department of Dermatology and Allergology, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584 CX Utrecht, The Netherlands
| | - Heike Rockmann
- Department of Dermatology and Allergology, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584 CX Utrecht, The Netherlands
| | - Henny G Otten
- Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584 CX Utrecht, The Netherlands
| | - Rob J B Klemans
- Department of Dermatology and Allergology, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584 CX Utrecht, The Netherlands
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Lee JY, Yang M, Jeong KY, Sim DW, Park JH, Park KH, Lee JH, Park JW. Characterization of a Major Allergen from Mongolian Oak, Quercus mongolica, a Dominant Species of Oak in Korea. Int Arch Allergy Immunol 2017; 174:77-85. [DOI: 10.1159/000481092] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Accepted: 08/29/2017] [Indexed: 11/19/2022] Open
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