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D’Aiuto V, Mormile I, Granata F, Napolitano F, Lamagna L, Della Casa F, de Paulis A, Rossi FW. Worldwide Heterogeneity of Food Allergy: Focus on Peach Allergy in Southern Italy. J Clin Med 2024; 13:3259. [PMID: 38892968 PMCID: PMC11173152 DOI: 10.3390/jcm13113259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 05/25/2024] [Accepted: 05/30/2024] [Indexed: 06/21/2024] Open
Abstract
Food allergy (FA) has shown an increasing prevalence in the last decades, becoming a major public health problem. However, data on the prevalence of FA across the world are heterogeneous because they are influenced by several factors. Among IgE-mediated FA, an important role is played by FA related to plant-derived food which can result from the sensitization to a single protein (specific FA) or to homologous proteins present in different foods (cross-reactive FA) including non-specific lipid transfer proteins (nsLTPs), profilins, and pathogenesis-related class 10 (PR-10). In addition, the clinical presentation of FA is widely heterogeneous ranging from mild symptoms to severe reactions up to anaphylaxis, most frequently associated with nsLTP-related FA (LTP syndrome). Considering the potential life-threatening nature of nsLTP-related FA, the patient's geographical setting should always be taken into account; thereby, it is highly recommended to build a personalized approach for managing FA across the world in the precision medicine era. For this reason, in this review, we aim to provide an overview of the prevalence of nsLTP-mediated allergies in the Mediterranean area and to point out the potential reasons for the different geographical significance of LTP-driven allergies with a particular focus on the allergenic properties of food allergens and their cross reactivity.
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Affiliation(s)
- Valentina D’Aiuto
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (V.D.); (I.M.); (F.N.); (F.D.C.); (A.d.P.); (F.W.R.)
| | - Ilaria Mormile
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (V.D.); (I.M.); (F.N.); (F.D.C.); (A.d.P.); (F.W.R.)
| | - Francescopaolo Granata
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (V.D.); (I.M.); (F.N.); (F.D.C.); (A.d.P.); (F.W.R.)
| | - Filomena Napolitano
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (V.D.); (I.M.); (F.N.); (F.D.C.); (A.d.P.); (F.W.R.)
| | - Laura Lamagna
- Department of Clinical Medicine and Surgery, University of Naples Federico II, 80131 Naples, Italy;
| | - Francesca Della Casa
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (V.D.); (I.M.); (F.N.); (F.D.C.); (A.d.P.); (F.W.R.)
| | - Amato de Paulis
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (V.D.); (I.M.); (F.N.); (F.D.C.); (A.d.P.); (F.W.R.)
- Center for Basic and Clinical Immunology Research (CISI), WAO Center of Excellence, University of Naples Federico II, 80131 Naples, Italy
| | - Francesca Wanda Rossi
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (V.D.); (I.M.); (F.N.); (F.D.C.); (A.d.P.); (F.W.R.)
- Center for Basic and Clinical Immunology Research (CISI), WAO Center of Excellence, University of Naples Federico II, 80131 Naples, Italy
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Pauli G, Wurmser C, Roos A, Kokou C, Huang HJ, D’souza N, Lupinek C, Zakzuk J, Regino R, Acevedo N, Caraballo L, Vrtala S, Valenta R. Frequent IgE recognition of Blomia tropicalis allergen molecules in asthmatic children and young adults in equatorial Africa. Front Immunol 2023; 14:1133935. [PMID: 37359512 PMCID: PMC10286740 DOI: 10.3389/fimmu.2023.1133935] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Accepted: 05/12/2023] [Indexed: 06/28/2023] Open
Abstract
Background Asthma is not well investigated in equatorial Africa and little is known about the disease-associated allergen molecules recognized by IgE from patients in this area. The aim was to study the molecular IgE sensitization profile of asthmatic children and young adults in a semi-rural area (Lambaréné) of an equatorial African country (Gabon), to identify the most important allergen molecules associated with allergic asthma in equatorial Africa. Methods Fifty-nine asthmatic patients, mainly children and few young adults, were studied by skin prick testing to Dermatophagoides pteronyssinus (Der p), D. farinae (Der f), cat, dog, cockroach, grass, Alternaria and peanut. Sera were obtained from a subset of 35 patients, 32 with positive and 3 with negative skin reaction to Der p and tested for IgE reactivity to 176 allergen molecules from different allergen sources by ImmunoCAP ISAC microarray technology and to seven recombinant Blomia tropicalis (Blo t) allergens by IgE dot blot assay. Results Thirty-three of the 59 patients (56%) were sensitized to Der p and 23 of them (39%) were also sensitized to other allergen sources, whereas 9 patients (15%) were only sensitized to allergen sources other than Der p. IgE serology analyses (n=35) showed high IgE-binding frequencies to the Blo t allergens Blo t 5 (43%), Blo t 21 (43%) and Blo t 2 (40%), whereas the Der p allergens rDer p 2, rDer p 21 and rDer p 5 (34%, 29% and 26%) were less frequently recognized. Only few patients showed IgE reactivity to allergens from other allergen sources, except to allergens containing carbohydrate determinants (CCDs) or to wasp venom allergens (i.e., antigen 5). Conclusion Our results thus demonstrate that IgE sensitization to mite allergens is very prevalent in asthmatics in Equatorial Africa with B. tropicalis allergen molecules representing the most important ones associated with allergic asthma.
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Affiliation(s)
- Gabrielle Pauli
- Faculty of Medicine, University Louis Pasteur, Strasbourg, France
- Hôpital Albert Schweitzer, Lambaréné, Gabon
| | - Carole Wurmser
- Faculty of Medicine, University Louis Pasteur, Strasbourg, France
- Hôpital Albert Schweitzer, Lambaréné, Gabon
| | - Antoine Roos
- Faculty of Medicine, University Louis Pasteur, Strasbourg, France
- Hôpital Albert Schweitzer, Lambaréné, Gabon
| | | | - Huey-Jy Huang
- Division of Immunopathology, Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Nishelle D’souza
- Division of Immunopathology, Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Christian Lupinek
- Division of Immunopathology, Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Josefina Zakzuk
- Institute for Immunological Research, Universidad de Cartagena, Cartagena, Colombia
| | - Ronald Regino
- Institute for Immunological Research, Universidad de Cartagena, Cartagena, Colombia
| | - Nathalie Acevedo
- Institute for Immunological Research, Universidad de Cartagena, Cartagena, Colombia
| | - Luis Caraballo
- Institute for Immunological Research, Universidad de Cartagena, Cartagena, Colombia
| | - Susanne Vrtala
- Division of Immunopathology, Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Rudolf Valenta
- Division of Immunopathology, Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
- National Research Center, Institute of Immunology FMBA of Russia, Moscow, Russia
- Laboratory for Immunopathology, Department of Clinical Immunology and Allergy, Sechenov First Moscow State Medical University, Moscow, Russia
- Karl Landsteiner University of Health Sciences, Krems, Austria
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3
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Huang HJ, Sarzsinszky E, Vrtala S. House dust mite allergy: The importance of house dust mite allergens for diagnosis and immunotherapy. Mol Immunol 2023; 158:54-67. [PMID: 37119758 DOI: 10.1016/j.molimm.2023.04.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 04/11/2023] [Accepted: 04/14/2023] [Indexed: 05/01/2023]
Abstract
House dust mite (HDM) allergy belongs to the most important allergies and affects approximately 65-130 million people worldwide. Additionally, untreated HDM allergy may lead to the development of severe disease manifestations such as atopic dermatitis or asthma. Diagnosis and immunotherapy of HDM allergic patients are well established but are often hampered by the use of mite extracts that are of bad quality and lack important allergens. The use of individual allergens seems to be a promising alternative to natural allergen extracts, since they represent well-defined components that can easily be produced and quantified. However, a thorough characterization of the individual allergens is required to determine their clinical relevance and to identify those allergens that are required for correct diagnosis of HDM allergy and for successful immunotherapy. This review gives an update on the individual HDM allergens and their benefits for diagnosis and immunotherapy of HDM allergic patients.
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Affiliation(s)
- Huey-Jy Huang
- Division of Immunopathology, Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Eszter Sarzsinszky
- Division of Immunopathology, Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Susanne Vrtala
- Division of Immunopathology, Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria.
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Warren C, Nimmagadda SR, Gupta R, Levin M. The epidemiology of food allergy in adults. Ann Allergy Asthma Immunol 2023; 130:276-287. [PMID: 36509408 DOI: 10.1016/j.anai.2022.11.026] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/31/2022] [Accepted: 11/23/2022] [Indexed: 12/13/2022]
Abstract
The prevalence and awareness of food allergy (FA) among US adults is arguably at a historical high, both with respect to primary immunoglobulin E-mediated food hypersensitivity and other food-triggered conditions that operate through a variety of immunologic mechanisms (eg, pollen-FA syndrome, alpha-gal syndrome, food protein-induced enterocolitis syndrome, eosinophilic esophagitis). Worryingly, not only are many adults retaining childhood-onset food allergies as they age into adulthood, it seems that many adults are experiencing adult-onset allergies to previously tolerated foods, with correspondingly adverse physical, and psychological health impacts. Consequently, this review aims to summarize what is currently known about the epidemiology and population-level burden of FA among adult populations in North America and around the globe. This article also provides insights into the natural history of these conditions and what we need to know as we look to the future to support effective care and prevent FA.
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Affiliation(s)
- Christopher Warren
- Department of Preventive Medicine, Feinberg School of Medicine, Northwestern University, Evanston, Illinois; Center for Food Allergy and Asthma Research, Institute for Public Health and Medicine, Feinberg School of Medicine, Northwestern University, Evanston, Illinois.
| | - Sai R Nimmagadda
- Center for Food Allergy and Asthma Research, Institute for Public Health and Medicine, Feinberg School of Medicine, Northwestern University, Evanston, Illinois; Division of Allergy and Immunology, Ann and Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois
| | - Ruchi Gupta
- Center for Food Allergy and Asthma Research, Institute for Public Health and Medicine, Feinberg School of Medicine, Northwestern University, Evanston, Illinois; Ann and Robert H. Lurie Children's Hospital of Chicago, Department of Pediatrics, Chicago, Illinois
| | - Michael Levin
- Division Paediatric Allergology, University of Cape Town, Cape Town, South Africa
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5
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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: 63] [Impact Index Per Article: 63.0] [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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Figo DD, Cordeiro Macedo PR, Gadermaier G, Remuzgo C, Castro FFM, Kalil J, Galvão CES, Santos KS. IgE and IgG4 Epitopes of Dermatophagoides and Blomia Allergens before and after Sublingual Immunotherapy. Int J Mol Sci 2023; 24:ijms24044173. [PMID: 36835585 PMCID: PMC9958541 DOI: 10.3390/ijms24044173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 02/04/2023] [Accepted: 02/13/2023] [Indexed: 02/22/2023] Open
Abstract
Sublingual immunotherapy (SLIT) is used worldwide to treat house dust mites (HDM) allergy. Epitope specific immunotherapy with peptide vaccines is used far less, but it is of great interest in the treatment of allergic reactions, as it precludes the drawbacks of allergen extracts. The ideal peptide candidates would bind to IgG, blocking IgE-binding. To better elucidate IgE and IgG4 epitope profiles during SLIT, sequences of main allergens, Der p 1, 2, 5, 7, 10, 23 and Blo t 5, 6, 12, 13, were included in a 15-mer peptide microarray and tested against pooled sera from 10 patients pre- and post-1-year SLIT. All allergens were recognized to some extent by at least one antibody isotype and peptide diversity was higher post-1-year SLIT for both antibodies. IgE recognition diversity varied among allergens and timepoints without a clear tendency. Der p 10, a minor allergen in temperate regions, was the molecule with more IgE-peptides and might be a major allergen in populations highly exposed to helminths and cockroaches, such as Brazil. SLIT-induced IgG4 epitopes were directed against several, but not all, IgE-binding regions. We selected a set of peptides that recognized only IgG4 or were able to induce increased ratios of IgG4:IgE after one year of treatment and might be potential targets for vaccines.
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Affiliation(s)
- Daniele Danella Figo
- LIM-19, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo 05403-900, Brazil
- Laboratorio de Imunologia, INCOR, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo 05403-900, Brazil
- Departamento de Clinica Medica, Disciplina de Imunologia Clinica e Alergia, Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo 01246-903, Brazil
| | - Priscilla Rios Cordeiro Macedo
- Departamento de Clinica Medica, Disciplina de Imunologia Clinica e Alergia, Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo 01246-903, Brazil
- Servico de Imunologia Clinica e Alergia, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo 05403-000, Brazil
| | - Gabriele Gadermaier
- Department of Biosciences and Medical Biology, Paris Lodron University Salzburg, 5020 Salzburg, Austria
| | - Cesar Remuzgo
- Laboratorio de Imunologia, INCOR, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo 05403-900, Brazil
| | - Fábio Fernandes Morato Castro
- Departamento de Clinica Medica, Disciplina de Imunologia Clinica e Alergia, Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo 01246-903, Brazil
- Servico de Imunologia Clinica e Alergia, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo 05403-000, Brazil
- Instituto Nacional de Ciencia e Tecnologia de Investigação em Imunologia (iii-INCT), Sao Paulo 05403-900, Brazil
| | - Jorge Kalil
- LIM-19, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo 05403-900, Brazil
- Laboratorio de Imunologia, INCOR, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo 05403-900, Brazil
- Departamento de Clinica Medica, Disciplina de Imunologia Clinica e Alergia, Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo 01246-903, Brazil
- Instituto Nacional de Ciencia e Tecnologia de Investigação em Imunologia (iii-INCT), Sao Paulo 05403-900, Brazil
| | - Clovis Eduardo Santos Galvão
- Departamento de Clinica Medica, Disciplina de Imunologia Clinica e Alergia, Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo 01246-903, Brazil
- Servico de Imunologia Clinica e Alergia, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo 05403-000, Brazil
| | - Keity Souza Santos
- LIM-19, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo 05403-900, Brazil
- Laboratorio de Imunologia, INCOR, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo 05403-900, Brazil
- Departamento de Clinica Medica, Disciplina de Imunologia Clinica e Alergia, Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo 01246-903, Brazil
- Instituto Nacional de Ciencia e Tecnologia de Investigação em Imunologia (iii-INCT), Sao Paulo 05403-900, Brazil
- Correspondence:
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Ndlovu V, Chimbari M, Ndarukwa P, Sibanda E. Sensitisation to Imbrasia belina (mopane worm) and other local allergens in rural Gwanda district of Zimbabwe. Allergy Asthma Clin Immunol 2022; 18:33. [PMID: 35397611 PMCID: PMC8994392 DOI: 10.1186/s13223-022-00668-0] [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: 09/19/2021] [Accepted: 03/08/2022] [Indexed: 11/30/2022] Open
Abstract
Background The prevalence of allergic diseases is increasing in Zimbabwe and the data relate to local as well as exotic allergen sources. As entomophagy, the practice of eating insects, is a recognised source of local allergens, we sought to measure the prevalence of and risk factors for sensitisation to Imbrasia belina (mopane worm), a popular edible insect. This was investigated alongside other locally relevant allergens in a rural community in Gwanda district, south of Zimbabwe. Methods A cross sectional study was conducted among 496 adults and children aged 10 years and above in Gwanda district, a mopane worm harvesting area in Zimbabwe. Data on individual characteristics and mopane worm exposure factors were collected using questionnaires. Sensitivity to allergens was assessed by performing skin prick tests at a local clinic using 10 different commercial allergen extracts (Stallergenes, France) and in-house extracts of mopane worm (Imbrasia belina) and mopane leaves (Colophospermum mopane). Data were analysed using Stata version 13 software. Results The prevalence of sensitisation to at least one allergen was 31.17% (n = 144). The prevalence of atopy was higher in adults (33.33%) than in children (23.53%) (p = 0.059). The commonest inhalant allergen sources were mopane worm (14.29%), Tyrophagus putrescentiae (14.29%), mopane leaves (13.42%), Alternaria alternata (6.49%) and Dermatophagoides pteronyssinus (6.49%). Polysensitisation was demonstrated in the study population and of the 108 participants (75%) who were sensitised to two or more allergens, 66 (61%) were women. Sensitisation to mopane worm and mopane leaves often clustered with Tyrophagus putrescentiae amongst adults. Adjusted logistic regression analyses between mopane worm sensitisation and self-reported exposure variables showed that sensitisation was more likely amongst mopane worm harvesters (OR = 1.92, 95%CI = 0.77–4.79), those who cooked or roasted mopane worms during harvesting (OR = 2.69, 95%CI = 0.78–9.31) and harvesting without personal protective equipment (PPE) (OR = 2.12, 95%CI = 0.83–5.44) compared to non-harvesters. Conclusion Atopic sensitization was common in this mopane worm harvesting community in Gwanda district of Zimbabwe. There was frequent co-sensitisation of mopane worm and mopane leaves with Tyrophagus putrescentiae in children and adults. It is important to determine the clinical relevance of our findings, particularly relating to mopane worm sensitisation. Supplementary Information The online version contains supplementary material available at 10.1186/s13223-022-00668-0.
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Affiliation(s)
- Vuyelwa Ndlovu
- School of Nursing and Public Health, College of Health Sciences, Howard College Campus, University of KwaZulu-Natal, Durban, South Africa. .,Department of Environmental Science and Health, Faculty of Applied Sciences, National University of Science and Technology, Corner Gwanda Road and Cecil Avenue, PO Box AC 939, Ascot, Bulawayo, Zimbabwe.
| | - Moses Chimbari
- School of Nursing and Public Health, College of Health Sciences, Howard College Campus, University of KwaZulu-Natal, Durban, South Africa.,Great Zimbabwe University , P.O Box 1235, Masvingo, Zimbabwe
| | - Pisirai Ndarukwa
- School of Nursing and Public Health, College of Health Sciences, Howard College Campus, University of KwaZulu-Natal, Durban, South Africa.,Department of Health Sciences and Faculty of Sciences, Bindura University of Science Education, P Bag 1020, Bindura, Zimbabwe
| | - Elopy Sibanda
- Asthma, Allergy and Immune Dysfunction Clinic, Twin Palms Medical Centre, 113 Kwame Nkrumah Avenue, Harare, Zimbabwe.,Department of Pathology, Medical School, National University of Science and Technology, Bulawayo, Zimbabwe
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Brandt O, Wegenstein B, Müller I, Smith D, Nqweniso S, Adams L, Müller S, du Randt R, Pühse U, Gerber M, Navarini AA, Utzinger J, Daniel Labhardt N, Schindler C, Walter C. Association between allergic sensitization and intestinal parasite infection in schoolchildren in Gqeberha, South Africa. Clin Exp Allergy 2022; 52:670-683. [PMID: 35073608 PMCID: PMC9310757 DOI: 10.1111/cea.14100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 01/03/2022] [Accepted: 01/17/2022] [Indexed: 11/30/2022]
Abstract
Background Inconsistent data exist regarding the influence of parasitic infection on the prevalence of allergic sensitization and disorders. Objective To investigate the impact of geohelminth and protozoan infections on sensitization patterns and allergic symptoms of children living in low‐income communities in Gqeberha, South Africa. Methods In a cross‐sectional study, 587 schoolchildren aged 8–12 years were recruited in June 2016 and screened for reactivity to common allergens by skin prick tests (SPTs) and for parasitic infections by stool examination. Additionally, questionnaires were completed to record allergic symptoms the children may have experienced. Results Positive SPTs were found in 237/587 children (40.4%), and about one‐third of whom were polysensitized. Sensitizations were most frequently detected against the house dust mites (HDM) Dermatophagoides spp. (31.9%) and Blomia tropicalis (21.0%). Infections with geohelminths (Ascaris lumbricoides, Trichuris trichiura) were found in 26.8% and protozoan infections (Giardia intestinalis, Cryptosporidia spp.) in 13.9% of study participants. Mixed logistic regression analyses revealed negative associations between parasite infection and sensitization to Blomia tropicalis (OR: 0.54, 95% CI 0.33–0.89) and to Dermatophagoides spp. (OR 0.65, 95% CI 0.43–0.96), and between protozoan infection and allergic sensitization to any aeroallergen, although these associations were not significant when adjusted for false discovery. Geohelminth infection and intensity of geohelminth infection were both associated with reduced risk of polysensitization (OR 0.41, 95% CI 0.21–0.86), and this association remained significant with adjustment for false discovery. Reported respiratory symptoms were associated with HDM sensitization (ORs from 1.54 to 2.48), but not with parasite infection. Conclusions and clinical relevance Our data suggest that geohelminth infection and high geohelminth infection intensity are associated with a reduced risk of polysensitization.
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Affiliation(s)
- Oliver Brandt
- Department of Dermatology, Allergy Unit, University Hospital, University of Basel, Basel, Switzerland.,Department of Dermatology, University Hospital, University of Basel, Basel, Switzerland.,Pediatric Respiratory Medicine, Children's University Hospital of Bern, University of Bern, Bern, Switzerland
| | - Benjamin Wegenstein
- Department of Dermatology, Allergy Unit, University Hospital, University of Basel, Basel, Switzerland.,Swiss Tropical and Public Health Institute, Basel, Switzerland
| | - Ivan Müller
- Swiss Tropical and Public Health Institute, Basel, Switzerland.,Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
| | - Danielle Smith
- Department of Human Movement Science, Nelson Mandela University, Ggeberha, South Africa
| | - Siphesihle Nqweniso
- Department of Human Movement Science, Nelson Mandela University, Ggeberha, South Africa
| | - Larissa Adams
- Department of Human Movement Science, Nelson Mandela University, Ggeberha, South Africa
| | - Simon Müller
- Department of Dermatology, University Hospital, University of Basel, Basel, Switzerland
| | - Rosa du Randt
- Department of Human Movement Science, Nelson Mandela University, Ggeberha, South Africa
| | - Uwe Pühse
- Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
| | - Markus Gerber
- Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
| | - Alexander A Navarini
- Department of Dermatology, University Hospital, University of Basel, Basel, Switzerland
| | - Jürg Utzinger
- Swiss Tropical and Public Health Institute, Basel, Switzerland
| | | | | | - Cheryl Walter
- Department of Human Movement Science, Nelson Mandela University, Ggeberha, South Africa
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Fungal allergic sensitisation in young rural Zimbabwean children: Gut mycobiome and seroreactivity characteristics. CURRENT RESEARCH IN MICROBIAL SCIENCES 2022; 2:100082. [PMID: 35028627 PMCID: PMC8714770 DOI: 10.1016/j.crmicr.2021.100082] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 11/09/2021] [Accepted: 11/12/2021] [Indexed: 11/20/2022] Open
Abstract
Background The prevalence of allergic diseases has increased over the last few decades, with sensitisation to fungal allergens and gut microbiome dysbiosis implicated in this trend. The fungal community in the gut (mycobiome) has yet to be characterised and related to fungal allergic sensitisation. Thus, we characterised the gut mycobiome and related it to fungal sensitisation and seroreactivity among Zimbabwean children. We further determined the effect of host age, sex, Schistosoma haematobium infection and mycobiome composition on fungal sensitisation and seroreactivity. Methods Using shotgun metagenomic sequencing, we characterised the gut microbiome of stool samples of 116 preschool aged children (PSAC) (≤5 years old, 57(49.1%) male and 59 (50.9%) female). Sensitisation to common fungi in Zimbabwe was assessed using skin prick tests (SPTs). Allergen-specific IgM, IgA, IgG, IgE and IgG4 antibodies were quantified by ELISA. We analysed the relationship between fungal genera and SPT reactivity by ANOVA; fungal genera and IgE antibody reactivity by linear regression; variation in mycobiome abundance with host and environmental factors by PERMANOVA; SPT reactivity and host and environmental factors by logistic regression; seroreactivity and host and environmental factors by ANOVA. Results The mycobiome formed <1% of the sequenced gut microbiome and 228 fungal genera were identified. The most abundant genera detected were Protomyces, Taphrina, and Aspergillus. S.haematobium infection had a significant effect on fungal genera. Prevalence of SPT sensitisation to ≥1 fungal species was 96%, and individuals were frequently sensitised to Saccharomyces cerevisiae. Antibodies were detected in 100% of the population. There was no relationship between mycobiome abundance and IgE titres or IgE/IgG4 ratios for each fungal species; no significant differences between SPT reactivity and abundance of fungal species except for S. cerevisiae; and fungal seroreactivity did not significantly differ with age. There were some sex (m>f for, Epicoccum nigrum and Penicillium chrysogenum) and SPT reactivity -related differences in seroreactivity. Conclusion This is the first comprehensive characterisation of gut mycobiome and fungal allergic sensitisation of rural children in Zimbabwe. Although reported allergic disease is low there is a high percentage of sensitisation. Further studies with larger populations are required to understand the role of the mycobiome in allergic diseases.
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Skevaki C, Ngocho JS, Amour C, Schmid-Grendelmeier P, Mmbaga BT, Renz H. Epidemiology and management of asthma and atopic dermatitis in Sub-Saharan Africa. J Allergy Clin Immunol 2021; 148:1378-1386. [PMID: 34715154 DOI: 10.1016/j.jaci.2021.10.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 10/08/2021] [Accepted: 10/22/2021] [Indexed: 11/17/2022]
Abstract
Sub-Saharan Africa (SSA) is currently undergoing a transformation process of unprecedented magnitude owing to economic development and urbanization. This process is paralleled by a dramatic increase in prevalence and incidence of noncommunicable diseases. In this article we analyze the current situation with regard to 1 group of the earliest noncommunicable diseases in a person's life, namely, allergies and asthma. This article provides an update on the epidemiology, availability, and access to management strategies by patients experiencing bronchial asthma or atopic dermatitis in SSA. Despite all of the progress, there is still a tremendous need to support education and training, transfer of resources, and cooperation with pharmaceutical and diagnostic companies to achieve adequate treatment and sustainability in SSA with regard to allergy, asthma, and eczema management.
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Affiliation(s)
- Chrysanthi Skevaki
- Institute of Laboratory Medicine, Universities of Giessen and Marburg Lung Center, Philipps Universität Marburg, Member of the German Center for Lung Research, Marburg, Germany
| | - James S Ngocho
- Department of Epidemiology and Applied Biostatistics, Kilimanjaro Christian Medical University College, Moshi, Tanzania
| | - Caroline Amour
- Department of Epidemiology and Applied Biostatistics, Kilimanjaro Christian Medical University College, Moshi, Tanzania
| | | | - Blandina T Mmbaga
- Department of Pediatric and Child Health, Kilimanjaro Christian Medical University College, Moshi, Tanzania; Kilimanjaro Clinical Research Institute, Moshi, Tanzania
| | - Harald Renz
- Institute of Laboratory Medicine, Universities of Giessen and Marburg Lung Center, Philipps Universität Marburg, Member of the German Center for Lung Research, Marburg, Germany; Department of Epidemiology and Applied Biostatistics, Kilimanjaro Christian Medical University College, Moshi, Tanzania; Department of Clinical Immunology and Allergology, Laboratory of Immunopathology, Sechenov University, Moscow, Russia.
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11
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Kulalert P, Sritipsukho P, Nanthapisal S, Poachanukoon O. Concordance of skin test reactivity between indoor inhalant allergens among children with allergic respiratory disease. BMC Pediatr 2021; 21:338. [PMID: 34380462 PMCID: PMC8356470 DOI: 10.1186/s12887-021-02800-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 07/15/2021] [Indexed: 11/24/2022] Open
Abstract
Background In vitro studies have demonstrated cross-reactivity among indoor allergen proteins in children with allergic respiratory diseases. However, there are only few studies evaluating in vivo response. A skin prick test (SPT) with commercial indoor solutions is widely used in clinical practice. We aimed to evaluate SPT agreement in children with allergic respiratory disease between pairs of common indoor allergens. Methods We reviewed SPT results of children 2 to 18 years old, diagnosed with respiratory allergic disease. Results from house dust mite (Dermatophagoides farinae, Dermatophagoides pteronyssinus), cockroach (Periplaneta americana, Blatella germanica), cat and dog were collected. Sensitization was defined as ≥ 3 mm in wheal diameter. Kappa coefficient (κ) was used to analyze sensitization concordance for each allergen pair. Results The charts of 300 children, 187 (62.33%) males, were reviewed. Mean age was 7.43 ± 3.29 years with 183 (61%), 140 (46.67%), 45 (15%), 30 (10%) sensitizations to house dust mite (HDM), cockroach, cat and dog, respectively. Sensitization concordance between HDM and cockroach was moderate: κ = 0.53 (95% CI: 0.42–0.64). Moderate agreement occurred between dog and cat: κ = 0.41 (95%CI: 0.30–0.52). HDM-sensitized children showed poor concordance with both cat κ = 0.17 (95%CI: 0.09–0.24) and dog κ = 0.09 (95%CI: 0.03–0.14). There was also poor concordance between cockroach-sensitized children to cat κ = 0.19 (95%CI; 0.11–0.28) and dog κ = 0.11 (95%CI; 0.04–0.18). Conclusion We demonstrated moderate agreement of SPT response between HDM and cockroach as well as dog and cat. This may be due to cross-reactivity. Component-resolved diagnosis should be considered in children with co-sensitization of these allergen pairs.
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Affiliation(s)
- Prapasri Kulalert
- Department of Clinical Epidemiology, Faculty of Medicine, Thammasat University, Pathumthani, 12120, Thailand. .,Division of Allergy and Immunology, Department of Pediatrics, Faculty of Medicine, Thammasat University, Pathumthani, Thailand. .,Center of Excellence in Applied Epidemiology, Thammasat University, Pathumthani, Thailand. .,Center of Excellence for Allergy, Asthma and Pulmonary Disease, Thammasat University, Pathumthani, Thailand.
| | - Paskorn Sritipsukho
- Division of Allergy and Immunology, Department of Pediatrics, Faculty of Medicine, Thammasat University, Pathumthani, Thailand.,Center of Excellence in Applied Epidemiology, Thammasat University, Pathumthani, Thailand.,Center of Excellence for Allergy, Asthma and Pulmonary Disease, Thammasat University, Pathumthani, Thailand
| | - Sira Nanthapisal
- Division of Allergy and Immunology, Department of Pediatrics, Faculty of Medicine, Thammasat University, Pathumthani, Thailand.,Center of Excellence in Applied Epidemiology, Thammasat University, Pathumthani, Thailand.,Center of Excellence for Allergy, Asthma and Pulmonary Disease, Thammasat University, Pathumthani, Thailand
| | - Orapan Poachanukoon
- Division of Allergy and Immunology, Department of Pediatrics, Faculty of Medicine, Thammasat University, Pathumthani, Thailand.,Center of Excellence in Applied Epidemiology, Thammasat University, Pathumthani, Thailand.,Center of Excellence for Allergy, Asthma and Pulmonary Disease, Thammasat University, Pathumthani, Thailand
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12
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Cantillo JF, Puerta L. Mosquitoes: Important Sources of Allergens in the Tropics. FRONTIERS IN ALLERGY 2021; 2:690406. [PMID: 35387048 PMCID: PMC8974784 DOI: 10.3389/falgy.2021.690406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 06/03/2021] [Indexed: 11/13/2022] Open
Abstract
There are more than 3,000 mosquito species. Aedes aegypti, Ae. communis, and C. quinquefasciatus are, among others, three of the most important mosquito allergen sources in the tropics, western, and industrialized countries. Several individuals are sensitized to mosquito allergens, but the epidemiological data indicates that the frequency of sensitization markedly differs depending on the geographical region. Additionally, the geographical localization of mosquito species has been affected by global warming and some mosquito species have invaded areas where they were not previously found, at the same time as other species have been displaced. This phenomenon has repercussions in the pathogenesis and the accuracy of the diagnosis of mosquito allergy. Allergic individuals are sensitized to mosquito allergens from two origins: saliva and body allergens. Exposure to saliva allergens occurs during mosquito bite and induces cutaneous allergic reactions. Experimental and clinical data suggest that body allergens mediate different manifestations of allergic reactions such as asthma and rhinitis. The most studied mosquito species is Ae. aegypti, from which four and five allergens of the saliva and body, respectively, have been reported. Many characterized allergens are homologs to arthropod-derived allergens, which cause strong cross-reactivity at the humoral and cellular level. The generalized use of whole body Ae. communis or C. quinquefasciatus extracts complicates the diagnosis of mosquito allergy because they have low concentration of saliva allergens and may result in poor diagnosis of the affected population when other species are the primary sensitizer. This review article discusses the current knowledge about mosquito allergy, allergens, cross-reactivity, and proposals of component resolved approaches based on mixtures of purified recombinant allergens to replace saliva-based or whole-body extracts, in order to perform an accurate diagnosis of allergy induced by mosquito allergen exposure.
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Affiliation(s)
- Jose Fernando Cantillo
- Institute for Immunological Research, University of Cartagena, Cartagena, Colombia
- Inmunotek, S.L., Madrid, Spain
| | - Leonardo Puerta
- Institute for Immunological Research, University of Cartagena, Cartagena, Colombia
- *Correspondence: Leonardo Puerta
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13
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Eder K, Becker S, Gellrich D, Zieglmayer P, Gröger M. The Role of Der p 23 Sensitization: An Analysis of 474 Patients Sensitized to Mite. Int Arch Allergy Immunol 2020; 181:689-698. [PMID: 32554970 DOI: 10.1159/000508522] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 05/04/2020] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION House dust mite contains several allergen components and causes perennial allergy. Lately, a new major allergen, Der p 23, was described with relatively high sensitization rates in different European Countries. In addition, Der p 23 is supposed to cause asthmatic disease. OBJECTIVE We would like to question the prevalence and clinical impact of specific immunoglobulin E to Der p 23 in a large patient sample in southern Bavaria, Germany. METHODS 474 patients from southern Bavaria, who visited the allergy department within the Department of Oto-Rhino-Laryngology of a university hospital, with sensitization to Dermatophagoides pteronyssinus were retrospectively compared regarding their sensitization profile to Der p 1, Der p 2, and Der p 23 and their clinical characteristics. RESULTS Among D. pteronyssinus-sensitized patients, the overall sensitization rate to Der p 23 was 42% in southern Bavaria. Most likely, patients were simultaneously sensitized to Der p 1, Der p 2, and Der p 23. Der p 23-sensitized patients reported more frequently asthma and showed higher prevalence of poly-sensitization towards 3 additional allergen groups and higher prevalence of double-sensitization to Der p 1 and Der p 2 compared to patients with missing sensitization to Der p 23. Considering the results of allergen provocation tests, neither IgE sensitization against Der p 23 nor levels of specific immunoglobulin E to Der p 23 allow a clear prediction of the clinical relevance of the sensitization. CONCLUSION With a sensitization rate of 42%, Der p 23 closely misses the criterion of a major allergen in our southern Bavarian patient collective. A higher prevalence of polysensitization and self-reported asthma was the only clinical feature found in Der p 23-sensitized patients.
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Affiliation(s)
- Katharina Eder
- Department of Oto-Rhino-Laryngology, Head and Neck Surgery, Ludwig Maximilian University of Munich, Munich, Germany,
| | - Sven Becker
- Department of Oto-Rhino-Laryngology, Head and Neck Surgery, Eberhard Karls University of Tübingen, Tübingen, Germany
| | - Donata Gellrich
- Department of Oto-Rhino-Laryngology, Head and Neck Surgery, Ludwig Maximilian University of Munich, Munich, Germany
| | - Petra Zieglmayer
- Vienna Challenge Chamber, Allergy Center Vienna West, Vienna, Austria
| | - Moritz Gröger
- Department of Oto-Rhino-Laryngology, Head and Neck Surgery, Ludwig Maximilian University of Munich, Munich, Germany
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Arrais M, Lulua O, Quifica F, Rosado-Pinto J, Gama JM, Brito M, Taborda-Barata L. Sensitisation to aeroallergens in relation to asthma and other allergic diseases in Angolan children: a cross-sectional study. Allergol Immunopathol (Madr) 2020; 48:281-289. [PMID: 32035729 DOI: 10.1016/j.aller.2019.10.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Revised: 10/06/2019] [Accepted: 10/17/2019] [Indexed: 02/05/2023]
Abstract
INTRODUCTION AND OBJECTIVES In Africa, few studies of sensitisation profiles have been performed in children or adolescents and, in Angola, there are none. The objectives of the present study were to assess the sensitisation profile of Angolan schoolchildren and to determine the relationship between that pattern, sociodemographic factors, asthma and other allergic diseases. MATERIALS AND METHODS Cross-sectional, observational study in 5-14-year-old children, performed between September and November 2017, in the Province of Bengo, Angola. Five schools (15%) were randomly selected in the geographical area of the study: three from an urban area, and two from a rural area. Data were collected using the Portuguese versions of the ISAAC questionnaires for children and adolescents, regarding asthma, rhinitis and eczema. Skin prick tests (SPT) were performed with a battery of 12 aeroallergens. Stools were assessed for the presence of helminths. Descriptive statistics were used, as well as univariate calculation of odds ratios. RESULTS Sensitisation to aeroallergens was low (8%) and most sensitised children were asymptomatic. Most frequent sensitisations involved house dust mites, cockroach or fungi, and a high proportion of children (78.1%) were monosensitised. No relationship was detected between sensitisations and asthma, rhinitis or eczema. Place of residence, gender, age or helminthic infection did not affect the probability of having positive SPTs. CONCLUSIONS The most frequent sensitisations in children from Bengo Province in Angola involve house dust mites, followed by cockroach and fungi. No relationship was found between atopic sensitisation and asthma or other allergic diseases.
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15
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Hossny E, Ebisawa M, El-Gamal Y, Arasi S, Dahdah L, El-Owaidy R, Galvan CA, Lee BW, Levin M, Martinez S, Pawankar R, Tang ML, Tham EH, Fiocchi A. Challenges of managing food allergy in the developing world. World Allergy Organ J 2019; 12:100089. [PMID: 31871534 PMCID: PMC6909084 DOI: 10.1016/j.waojou.2019.100089] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 10/30/2019] [Accepted: 10/30/2019] [Indexed: 02/07/2023] Open
Abstract
Food allergy (FA) is currently a significant health care problem in the developing world. Widely varying study populations and methodologies, the use of surrogate markers such as self report or hospitalization rates due to anaphylaxis rather than objective methods, limits robust estimation of FA prevalence in low income settings. Also, allergy is under-recognized as a clinical specialty in the developing world which compromises the chance for accurate diagnosis. In this review, most published data on food allergens from developing or low income countries are displayed. The diagnostic challenges and limitations of treatment options are discussed. It seems that FA is an under-appreciated health care issue in the developing world, and accurate determination of its burden in low-income settings represents an important unmet need. Multicenter surveillance studies, using standardized methodologies, are, therefore, needed to reveal the true extent of the problem and provide epidemiological clues for prevention. Preventive strategies should be tailored to fit local circumstances in different geographic regions. In addition, studying the gene environment interactions and impact of early life microbiota on the expression of FA in developing communities would be worthwhile. Efforts and resources should be directed toward public health education and training of health care providers dealing with food allergic patients.
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Affiliation(s)
- Elham Hossny
- Pediatric Allergy and Immunology Unit, Children's Hospital, Ain Shams University, Cairo, Egypt
| | - Motohiro Ebisawa
- Clinical Research Center for Allergy and Rheumatology, National Hospital Organization, Sagamihara National Hospital, Kanagawa, Japan
| | - Yehia El-Gamal
- Pediatric Allergy and Immunology Unit, Children's Hospital, Ain Shams University, Cairo, Egypt
| | | | - Lamia Dahdah
- Pediatric Hospital Bambino Gesù, Vatican City, Italy
| | - Rasha El-Owaidy
- Pediatric Allergy and Immunology Unit, Children's Hospital, Ain Shams University, Cairo, Egypt
| | - Cesar A. Galvan
- Centro Nacional de Referencia de Alergia Asma e Inmunología (CERNAAI), Instituto Nacional de Salud del Niño, Lima-Perú, Peru
| | - Bee Wah Lee
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Michael Levin
- Division Paediatric Allergology, University of Cape Town, Red Cross Children's Hospital, Cape Town, South Africa
| | - Santiago Martinez
- Arnold Palmer Hospital for Children, Florida State University College of Medicine, Florida, United States
| | - Ruby Pawankar
- Department of Pediatrics, Nippon Medical School, Tokyo, Japan
| | - Mimi L.K. Tang
- Department of Allergy and Immunology, The Royal Children's Hospital, Melbourne, Australia
- Murdoch Children's Research Institute, Department of Paediatrics, University of Melbourne, Victoria, Melbourne, Australia
- Department of Paediatrics, University of Melbourne, Victoria, Melbourne, Australia
| | - Elizabeth H. Tham
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
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Schmid‐Grendelmeier P, Takaoka R, Ahogo K, Belachew W, Brown S, Correia J, Correia M, Degboe B, Dorizy‐Vuong V, Faye O, Fuller L, Grando K, Hsu C, Kayitenkore K, Lunjani N, Ly F, Mahamadou G, Manuel R, Kebe Dia M, Masenga E, Muteba Baseke C, Ouedraogo A, Rapelanoro Rabenja F, Su J, Teclessou J, Todd G, Taïeb A. Position Statement on Atopic Dermatitis in Sub-Saharan Africa: current status and roadmap. J Eur Acad Dermatol Venereol 2019; 33:2019-2028. [PMID: 31713914 PMCID: PMC6899619 DOI: 10.1111/jdv.15972] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Accepted: 09/05/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND The first International Society of Atopic Dermatitis (ISAD) global meeting dedicated to atopic dermatitis (AD) in Sub-Saharan Africa (SSA) was held in Geneva, Switzerland in April 2019. A total of 30 participants were present at the meeting, including those from 17 SSA countries, representatives of the World Health Organization (WHO), the International Foundation for Dermatology (IFD) (a committee of the International League of Dermatological Societies, ILDS www.ilds.org), the Fondation pour la Dermatite Atopique, as well as specialists in telemedicine, artificial intelligence and therapeutic patient education (TPE). RESULTS AD is one of the most prevalent chronic inflammatory skin diseases in SSA. Besides neglected tropical diseases (NTDs) with a dermatological presentation, AD requires closer attention from the WHO and national Departments of Health. CONCLUSIONS A roadmap has been defined with top priorities such as access to essential medicines and devices for AD care, in particular emollients, better education of primary healthcare workers for adequate triage (e.g. better educational materials for skin diseases in pigmented skin generally and AD in particular, especially targeted to Africa), involvement of traditional healers and to a certain extent also patient education, bearing in mind the barriers to effective healthcare faced in SSA countries such as travel distances to health facilities, limited resources and the lack of dermatological expertise. In addition, several initiatives concerning AD research in SSA were discussed and should be implemented in close collaboration with the WHO and assessed at follow-up meetings, in particular, at the next ISAD meeting in Seoul, South Korea and African Society of Dermatology and Venereology (ASDV) meeting in Nairobi, Kenya, both in 2020.
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Affiliation(s)
| | - R. Takaoka
- Department of DermatologyUniversity of São Paulo Medical SchoolSão PauloBrazil
| | - K.C. Ahogo
- Département de médecine et Spécialités MédicalesDermatologie et VénérologieCHU TreichvilleUniversité Félix Houphouët‐Boigny UFR Sciences MédicalesAbidjanCôte d'Ivoire
| | - W.A. Belachew
- College of Health ScienceAyder Comprehensive Specialized Teaching HospitalMekelle UniversityMekelleEthiopia
| | - S.J. Brown
- Skin Research GroupSchool of MedicineNinewells Hospital & Medical SchoolUniversity of DundeeDundeeUK
| | - J.C. Correia
- Division of Therapeutic Education for Chronic DiseasesWHO Collaborating CenterDepartment of First Aid MedecineGeneva University HospitalsGenevaSwitzerland
| | - M. Correia
- Department of DermatologyHospital Cuf Descobertas and Hospital Cuf Torres VedrasTorres VedrasPortugal
| | - B. Degboe
- Department of DermatologyFaculty of Health SciencesNational and Teaching Hospital HKM of CotonouUniversity of Abomey‐CalaviCotonouBenin
| | - V. Dorizy‐Vuong
- Department of Adult and Pediatric DermatologyCHU BordeauxBordeauxFrance
- INSERM U 1035University of BordeauxBordeauxFrance
| | - O. Faye
- Department of DermatologyFaculty of MedicineCNAMBamakoMali
| | - L.C. Fuller
- Chair of International Foundation for DermatologyChelsea and Westminster HospitalLondonUK
| | - K. Grando
- Allergy UnitDepartment of DermatologyUniversity HospitalZurichSwitzerland
| | - C. Hsu
- Department of DermatologyTeledermatology and AIUniversity Hospital of BaselBaselSwitzerland
| | - K. Kayitenkore
- Kigali Dermatology CenterUniversity of RwandaKigaliRwanda
| | - N. Lunjani
- University of Cape TownCape TownSouth Africa
| | - F. Ly
- Université Cheikh Anta DiopDakarSenegal
| | - G. Mahamadou
- Department of Adult and Pediatric DermatologyCHU BordeauxBordeauxFrance
- Service de Dermatologie‐VénéréologieCHU Sylvanus OlympioLoméTogo
| | - R.C.F. Manuel
- Department of DermatologyMinistry of HealthHospital Central de MaputoMaputoMozambique
| | | | - E.J. Masenga
- Regional Dermatology Training CenterKilimanjaro Christian Medical University CollegeMoshiTanzania
| | | | - A.N. Ouedraogo
- University Hospital Yalgado Ouedraogo of OuagadougouUniversity Ouaga I Pr Joseph Ki‐Zerbo OuagadougouOuagadougouBurkina Faso
| | - F. Rapelanoro Rabenja
- Department of DermatologyUniversity Hospital Joseph Raseta BefelatananaAntananarivoMadagascar
| | - J. Su
- Department of PaediatricsMurdoch Children's Research InstituteRoyal Children's HospitalThe University of MelbourneParkvilleVictoriaAustralia
| | - J.N. Teclessou
- Service dermatologie et ISTCHU Sylvanus OlympioUniversité de LoméLoméTogo
| | - G. Todd
- Department of MedicineUniversity of Cape TownCape TownSouth Africa
| | - A. Taïeb
- Department of Adult and Pediatric DermatologyCHU BordeauxBordeauxFrance
- INSERM U 1035University of BordeauxBordeauxFrance
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Soogali NB, Soon JM. Food allergies and perceptions towards food allergen labelling in Mauritius. Food Control 2018. [DOI: 10.1016/j.foodcont.2018.06.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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18
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Cantillo JF, Puerta L, Fernandez-Caldas E, Subiza JL, Soria I, Wöhrl S, Ebner C, Keller W, Resch-Marat Y, Vrtala S, Bohle B. Tropomyosins in mosquito and house dust mite cross-react at the humoral and cellular level. Clin Exp Allergy 2018; 48:1354-1363. [DOI: 10.1111/cea.13229] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 06/01/2018] [Accepted: 07/02/2018] [Indexed: 12/17/2022]
Affiliation(s)
- Jose F. Cantillo
- Complutense University of Madrid; Madrid Spain
- Institute for Immunological Research/University of Cartagena; Cartagena Colombia
| | - Leonardo Puerta
- Institute for Immunological Research/University of Cartagena; Cartagena Colombia
| | - Enrique Fernandez-Caldas
- Inmunotek S.L.; Alcalá de Henares Spain
- University of South Florida College of Medicine; Tampa Florida
| | | | | | - Stefan Wöhrl
- Floridsdorf Allergy Center (FAZ); Vienna Austria
| | | | - Walter Keller
- Division of Structural Biology; Institute of Molecular Biosciences; BioTechMed University of Graz; Graz Austria
| | - Yvonne Resch-Marat
- Department of Pathophysiology and Allergy Research; Medical University of Vienna; Vienna Austria
| | - Susanne Vrtala
- Department of Pathophysiology and Allergy Research; Medical University of Vienna; Vienna Austria
| | - Barbara Bohle
- Department of Pathophysiology and Allergy Research; Medical University of Vienna; Vienna Austria
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Panzner P, Vachová M, Vlas T, Vítovcová P, Brodská P, Malý M. Cross-sectional study on sensitization to mite and cockroach allergen components in allergy patients in the Central European region. Clin Transl Allergy 2018; 8:19. [PMID: 29881542 PMCID: PMC5985581 DOI: 10.1186/s13601-018-0207-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Accepted: 04/23/2018] [Indexed: 01/19/2023] Open
Abstract
Background The major sources of allergens in the indoor air include house dust mites, dander derived from domestic animals and rodents, cockroach, and several fungi. Mites are the main cause of allergies in some countries with a warmer climate, but the epidemiological significance of mite and cockroach allergens in Central Europe has not been established yet. Methods We assessed sensitization profiles of allergy patients in a Central European region in regard to sensitization to mites and cockroach. We used molecular diagnosis by means of the microarray ISAC, and we investigated 1766 patients with clinical suspicion to an allergic disorder. 1255 of them were positive to at least one allergen component, and this group was subjected to statistical analysis. Results The sensitization to at least one mite-specific molecule (Der p 1, 2, Der f 1, 2) was observed relatively frequently in 32.7% of patients. Specific IgE to mite group 2 molecules is almost fully cross-reactive. Group 1 allergens are also cross-reactive, but in some patients, a species-specific response was observed. Relatively high rate of sensitization both to group 1 and 2 allergens in our patients indicates the greater role of co-sensitizations. Isolated sensitizations to molecules derived from glyciphagid mites Lep d 2 and/or Blo t 5 without sensitization to other mite-derived molecules were observed only exceptionally (in 0.6% of cases). True sensitization to at least one cockroach-specific molecule (Bla g 1, 2, 5) was very rare (in 0.6% of cases), and nearly all of them were co-sensitizations with other noncockroach-derived molecules. Sensitization to an inhaled tropomyosin was observed rarely in 2.2% of patients (Der p 10 in 1.9% and Bla g 7 in 1.5%). Co-sensitization of inhaled tropomyosins with the respective mite- or cockroach-specific molecules was observed only in the minority of patients suggesting the different route of sensitization being more frequent. Conclusions The majority of patients are co-sensitized to several molecules of the respective allergen source. The knowledge of this molecular spectrum of sensitization is important for optimal diagnosis and treatment in respect to allergen content in mite extracts used for diagnostic and therapeutic purposes. In regard to the sensitization patterns of Central European patients, it is necessary to point out the importance of quantifying at least three major mite components Der f 1, Der p 1 and Der f 2 (or Der p 2).
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Affiliation(s)
- Petr Panzner
- 1Department of Immunology and Allergology, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic
| | - Martina Vachová
- 1Department of Immunology and Allergology, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic
| | - Tomáš Vlas
- 2Department of Immunology and Allergology, Faculty Hospital in Pilsen, Pilsen, Czech Republic
| | - Petra Vítovcová
- 2Department of Immunology and Allergology, Faculty Hospital in Pilsen, Pilsen, Czech Republic
| | - Petra Brodská
- 3Department of Dermatovenerology, Faculty Hospital in Pilsen, Pilsen, Czech Republic
| | - Marek Malý
- 4The National Institute of Public Health, Prague, Czech Republic
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20
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Yang Z, Zhao J, Wei N, Feng M, Xian M, Shi X, Zheng Z, Su Q, Wong GWK, Li J. Cockroach is a major cross-reactive allergen source in shrimp-sensitized rural children in southern China. Allergy 2018; 73:585-592. [PMID: 29072879 DOI: 10.1111/all.13341] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/21/2017] [Indexed: 01/10/2023]
Abstract
BACKGROUND Little is known about the prevalence of food allergy (FA) in China. The aim of this study was to investigate the disparity of FA between urban and rural areas in southern China. METHODS EuroPrevall questionnaire responses were obtained from 5542 school-age children in urban Guangzhou and 5319 in rural Shaoguan. A case-control study enrolled 190 children with adverse reactions (ARs) after food intake as cases and 212 controls in Guangzhou, whereas 116 cases and 233 controls in Shaoguan. These subjects underwent skin prick test (SPT) and serum IgE measurements to food and inhalant allergens. Allergen extracts from shrimp, house dust mite (HDM), and cockroach were prepared for IgE cross-reactivity testing in 23 Guangzhou and 20 Shaoguan shrimp-sensitized subjects. RESULTS The prevalence of ARs to shrimp was higher in Guangzhou than in Shaoguan children (3.5% vs 1.4%, P < .001). However, sensitization rate to shrimp (SPT: 3.7% vs 11.2%, P = .015; IgE: 12.6% vs 36.2%, P < .001) and cockroach (SPT: 5.3% vs 33.5%; IgE: 2.6% vs 27.6%, P < .001) was lower in Guangzhou. A significant correlation between shrimp and HDM/cockroach IgE was found in Shaoguan children. The proportions of positive IgE to tropomyosin (Pen a 1, Der p 10) were lower than 7.4% in both areas. Cockroach allergen has a significantly higher inhibition rate of binding to IgE to house dust mite allergens in Shaoguan sera. CONCLUSION Shrimp is a common allergic food in southern China. Higher proportion of shrimp sensitization in rural subjects could be explained by cross-reactivity to cockroach. Tropomyosin was not a major allergen responding to the cross-reactivity.
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Affiliation(s)
- Z. Yang
- Department of Allergy and Clinical Immunology; Guangzhou Institute of Respiratory Disease; State Key Laboratory of Respiratory Disease; The First Affiliated Hospital of Guangzhou Medical University; Guangzhou China
| | - J. Zhao
- Department of Allergy and Clinical Immunology; Guangzhou Institute of Respiratory Disease; State Key Laboratory of Respiratory Disease; The First Affiliated Hospital of Guangzhou Medical University; Guangzhou China
| | - N. Wei
- Department of Allergy and Clinical Immunology; Guangzhou Institute of Respiratory Disease; State Key Laboratory of Respiratory Disease; The First Affiliated Hospital of Guangzhou Medical University; Guangzhou China
| | - M. Feng
- Department of Allergy and Clinical Immunology; Guangzhou Institute of Respiratory Disease; State Key Laboratory of Respiratory Disease; The First Affiliated Hospital of Guangzhou Medical University; Guangzhou China
| | - M. Xian
- Department of Allergy and Clinical Immunology; Guangzhou Institute of Respiratory Disease; State Key Laboratory of Respiratory Disease; The First Affiliated Hospital of Guangzhou Medical University; Guangzhou China
| | - X. Shi
- Department of Allergy and Clinical Immunology; Guangzhou Institute of Respiratory Disease; State Key Laboratory of Respiratory Disease; The First Affiliated Hospital of Guangzhou Medical University; Guangzhou China
| | - Z. Zheng
- Department of Allergy and Clinical Immunology; Guangzhou Institute of Respiratory Disease; State Key Laboratory of Respiratory Disease; The First Affiliated Hospital of Guangzhou Medical University; Guangzhou China
| | - Q. Su
- Department of Allergy and Clinical Immunology; Guangzhou Institute of Respiratory Disease; State Key Laboratory of Respiratory Disease; The First Affiliated Hospital of Guangzhou Medical University; Guangzhou China
| | - G. W. K. Wong
- Department of Paediatrics; Prince of Wales Hospital; The Chinese University of Hong Kong; Hong Kong China
| | - J. Li
- Department of Allergy and Clinical Immunology; Guangzhou Institute of Respiratory Disease; State Key Laboratory of Respiratory Disease; The First Affiliated Hospital of Guangzhou Medical University; Guangzhou China
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Garib V, Wollmann E, Djambekova G, Lemell P, Kmenta M, Berger U, Zieglmayer P, Valenta R. Possible effect of landscape design on IgE recognition profiles of two generations revealed with micro-arrayed allergens. Allergy 2017; 72:1579-1582. [PMID: 28369950 PMCID: PMC5638056 DOI: 10.1111/all.13169] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/23/2017] [Indexed: 02/03/2023]
Abstract
The aim of this study was to investigate possible effects of landscape design on the IgE sensitization profile toward inhalant allergens in patients with respiratory allergy from Uzbekistan where green areas have been changed during the last two decades by a State program. Sera from two different generations of Uzbek (n=58) and, for control purposes, from two generations of Austrian (n=58) patients were analyzed for IgE reactivity to 112 different micro‐arrayed allergen molecules by ImmunoCAP ISAC technology. Changes in molecular IgE sensitization profiles to pollen allergens in the young vs the middle‐aged Uzbek population were associated with replanting, whereas those in the Vienna populations reflected natural changes in plant growth. Our data indicate that anthropologic as well as natural changes in the biome may have effects on IgE sensitization profiles already from one to another generation.
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Affiliation(s)
- V. Garib
- Division of Immunopathology; Department of Pathophysiology and Allergy Research; Center of Pathophysiology; Infectiology and Immunology; Medical University of Vienna; Vienna Austria
| | - E. Wollmann
- Division of Immunopathology; Department of Pathophysiology and Allergy Research; Center of Pathophysiology; Infectiology and Immunology; Medical University of Vienna; Vienna Austria
| | - G. Djambekova
- Specialized Scientific-Practical Center for Therapy and Medical Rehabilitation (RSSPMC T&R); Tashkent Uzbekistan
| | - P. Lemell
- Vienna Challenge Chamber; Vienna Austria
| | - M. Kmenta
- Department of Oto-Rhino-Laryngology; Medical University of Vienna; Vienna Austria
| | - U. Berger
- Department of Oto-Rhino-Laryngology; Medical University of Vienna; Vienna Austria
| | | | - R. Valenta
- Division of Immunopathology; Department of Pathophysiology and Allergy Research; Center of Pathophysiology; Infectiology and Immunology; Medical University of Vienna; Vienna Austria
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Zeng G, Luo W, Wu Z, Li L, Zheng P, Huang H, Wei N, Luo J, Sun B, Liu Y. A cross-sectional observational study on allergen-specific IgE positivity in a southeast coastal versus a southwest inland region of China. Sci Rep 2017; 7:9593. [PMID: 28855606 PMCID: PMC5577243 DOI: 10.1038/s41598-017-10109-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Accepted: 08/04/2017] [Indexed: 11/09/2022] Open
Abstract
Few studies addressed trans-regional differences in allergen sensitization between areas within a similar latitudinal range but with distinct geomorphological features. We investigated specific IgE (sIgE) positivity to common allergens in populations from two southern China provinces. Using a uniformed protocol, serum samples were collected from 2778 subjects with suspected atopy in coastal Guangdong and inland Yunnan. The overall prevalence of sIgE positivity were 57.8% (95% CI: 56.0%, 59.6%) from Guangdong vs 60.9% (95% CI: 59.1%, 62.7%) from Yunnan. House dust mite (d1) was the most common allergen in both regions. Among d1-sensitized subjects, only 35.7% (208/583) in Guangdong and 22.9% (147/642) in Yunnan tested positive for d1 alone. Among those poly-sensitized d1-positive subjects, cockroach was the most common co-sensitizing aeroallergen. 41.9% of the d1-sensitized Guangdong subjects showed high-class sIgE reactivity (≥class 4), in contrast to a very low percentage of such reactivity in Yunnan. However, 36.3% of d1-sensitized subjects in Yunnan were concomitantly positive for tree pollen mix. Surprisingly, Yunnan subjects showed high prevalence of sIgE positivity for crabs and shrimps, either by overall or by age-group analysis, compared with their Guangdong counterparts (both P < 0.05). These findings may add to data about local allergies in China and worldwide.
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Affiliation(s)
- Guangqiao Zeng
- State Key Laboratory of Respiratory Disease, Guangzhou, 510120, Guangdong, China
- National Clinical Research Center of Respiratory Disease, Guangzhou, 510120, Guangdong, China
- Guangzhou Institute of Respiratory Disease, Guangzhou, 510120, Guangdong, China
- Department of Allergy and Clinical Immunology, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, Guangdong, China
| | - Wenting Luo
- State Key Laboratory of Respiratory Disease, Guangzhou, 510120, Guangdong, China
- National Clinical Research Center of Respiratory Disease, Guangzhou, 510120, Guangdong, China
- Guangzhou Institute of Respiratory Disease, Guangzhou, 510120, Guangdong, China
- Department of Allergy and Clinical Immunology, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, Guangdong, China
- Sino-French Hoffmann Institute, Guangzhou Medical University, Guangzhou, 510120, Guangdong, China
| | - Zehong Wu
- State Key Laboratory of Respiratory Disease, Guangzhou, 510120, Guangdong, China
- National Clinical Research Center of Respiratory Disease, Guangzhou, 510120, Guangdong, China
- Guangzhou Institute of Respiratory Disease, Guangzhou, 510120, Guangdong, China
- Department of Allergy and Clinical Immunology, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, Guangdong, China
- Sino-French Hoffmann Institute, Guangzhou Medical University, Guangzhou, 510120, Guangdong, China
| | - Ling Li
- Guangzhou Kingmed Diagnostics Group Co., Ltd., Guangzhou, 510120, Guangdong, China
| | - Peiyan Zheng
- State Key Laboratory of Respiratory Disease, Guangzhou, 510120, Guangdong, China
- National Clinical Research Center of Respiratory Disease, Guangzhou, 510120, Guangdong, China
- Guangzhou Institute of Respiratory Disease, Guangzhou, 510120, Guangdong, China
- Department of Allergy and Clinical Immunology, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, Guangdong, China
- Sino-French Hoffmann Institute, Guangzhou Medical University, Guangzhou, 510120, Guangdong, China
| | - Huimin Huang
- State Key Laboratory of Respiratory Disease, Guangzhou, 510120, Guangdong, China
- National Clinical Research Center of Respiratory Disease, Guangzhou, 510120, Guangdong, China
- Guangzhou Institute of Respiratory Disease, Guangzhou, 510120, Guangdong, China
- Department of Allergy and Clinical Immunology, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, Guangdong, China
- Sino-French Hoffmann Institute, Guangzhou Medical University, Guangzhou, 510120, Guangdong, China
| | - Nili Wei
- State Key Laboratory of Respiratory Disease, Guangzhou, 510120, Guangdong, China
- National Clinical Research Center of Respiratory Disease, Guangzhou, 510120, Guangdong, China
- Guangzhou Institute of Respiratory Disease, Guangzhou, 510120, Guangdong, China
- Department of Allergy and Clinical Immunology, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, Guangdong, China
- Sino-French Hoffmann Institute, Guangzhou Medical University, Guangzhou, 510120, Guangdong, China
| | - Jiaying Luo
- State Key Laboratory of Respiratory Disease, Guangzhou, 510120, Guangdong, China
- National Clinical Research Center of Respiratory Disease, Guangzhou, 510120, Guangdong, China
- Guangzhou Institute of Respiratory Disease, Guangzhou, 510120, Guangdong, China
- Department of Allergy and Clinical Immunology, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, Guangdong, China
- Sino-French Hoffmann Institute, Guangzhou Medical University, Guangzhou, 510120, Guangdong, China
| | - Baoqing Sun
- State Key Laboratory of Respiratory Disease, Guangzhou, 510120, Guangdong, China.
- National Clinical Research Center of Respiratory Disease, Guangzhou, 510120, Guangdong, China.
- Guangzhou Institute of Respiratory Disease, Guangzhou, 510120, Guangdong, China.
- Department of Allergy and Clinical Immunology, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, Guangdong, China.
- Sino-French Hoffmann Institute, Guangzhou Medical University, Guangzhou, 510120, Guangdong, China.
| | - Yong Liu
- Guangzhou Kingmed Diagnostics Group Co., Ltd., Guangzhou, 510120, Guangdong, China.
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Conti A, Burastero GJ, Suli C, Banerjee S, Vrtala S, Alessio M, Burastero SE. Identification by serological proteome analysis of paramyosin as prominent allergen in dust mite allergy. J Proteomics 2017; 166:19-26. [DOI: 10.1016/j.jprot.2017.06.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Revised: 06/20/2017] [Accepted: 06/30/2017] [Indexed: 11/15/2022]
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Luo W, Pan G, Huang H, Zheng P, Wei N, Zhang Y, Zeng G, Sun B. A Component-resolved Diagnostic Approach for a Study on Grass Pollen Allergens in Chinese Southerners with Allergic Rhinitis and/or Asthma. J Vis Exp 2017. [PMID: 28605372 DOI: 10.3791/55723] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Sensitization to grass pollen imposes a global risk for allergic airway diseases. Although prevention relies on local investigation of the pollen allergens, data on this topic are limited in southern China. Any available data were obtained by self-report questionnaires, skin prick tests, and total or specific IgE tests using crude extracts. For many reasons, these methods are unreliable. Serum sIgE reactivity to Bermuda grass, Timothy grass, and Humulus scandens allergens in a cohort of patients from Greater Guangzhou (southern China's largest city and its outskirts) with allergic rhinitis and/or asthma were examined using a fully-automated immunoassay analyzer as a component-resolved diagnostics (CRD) tool. For the first time, a considerably high prevalence of Bermuda grass sIgE positivity was demonstrated in Chinese southerners with allergic rhinitis and/or asthma. In these patients, a subtle prevalence of sensitization to Timothy grass and Humulus scandens was also noted, which may arise from cross-reactivity, as the latter two are not common in the region. This was also supported by the detection of allergen components. Fully-automated immunoassay analyzers may offer satisfactory consistency between regions, laboratories, and institutions and over time. The automaticity of the instrument may enable a standardized detection that would not have been readily revealed before the advent of CRD. This is a study that uses a CRD approach to investigate sensitization to grass pollen allergens in southern China. It adds to current evidence in the literature. Future studies are needed to validate these findings. However, although CRD is a useful tool, the findings made with the fully-automated immunoassay analyzer should not substitute for other laboratory investigations, clinical evaluations, and physician expertise.
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Affiliation(s)
- Wenting Luo
- State Key Laboratory of Respiratory Disease; National Clinical Research Center of Respiratory Disease; Guangzhou Institute of Respiratory Diseases; Department of Allergy and Clinical Immunology, First Affiliated Hospital of Guangzhou Medical University
| | - Guichang Pan
- Department of Respiratory Medicine, Sixth Affiliated Hospital of Guangzhou Medical University
| | - Huimin Huang
- State Key Laboratory of Respiratory Disease; National Clinical Research Center of Respiratory Disease; Guangzhou Institute of Respiratory Diseases; Department of Allergy and Clinical Immunology, First Affiliated Hospital of Guangzhou Medical University
| | - Peiyan Zheng
- State Key Laboratory of Respiratory Disease; National Clinical Research Center of Respiratory Disease; Guangzhou Institute of Respiratory Diseases; Department of Allergy and Clinical Immunology, First Affiliated Hospital of Guangzhou Medical University
| | - Nili Wei
- State Key Laboratory of Respiratory Disease; National Clinical Research Center of Respiratory Disease; Guangzhou Institute of Respiratory Diseases; Department of Allergy and Clinical Immunology, First Affiliated Hospital of Guangzhou Medical University
| | - Yifei Zhang
- Department of Respiratory Medicine, Sixth Affiliated Hospital of Guangzhou Medical University
| | - Guangqiao Zeng
- State Key Laboratory of Respiratory Disease; National Clinical Research Center of Respiratory Disease; Guangzhou Institute of Respiratory Diseases; Department of Allergy and Clinical Immunology, First Affiliated Hospital of Guangzhou Medical University;
| | - Baoqing Sun
- State Key Laboratory of Respiratory Disease; National Clinical Research Center of Respiratory Disease; Guangzhou Institute of Respiratory Diseases; Department of Allergy and Clinical Immunology, First Affiliated Hospital of Guangzhou Medical University;
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25
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Luo W, Huang H, Zheng P, Wei N, Luo J, Sun B, Zeng G. Major grass pollen allergens and components detected in a southern Chinese cohort of patients with allergic rhinitis and/or asthma. Mol Immunol 2016; 78:105-112. [PMID: 27614266 DOI: 10.1016/j.molimm.2016.08.013] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Revised: 08/18/2016] [Accepted: 08/23/2016] [Indexed: 01/13/2023]
Abstract
There is so far a paucity of data about allergen component-resolved diagnosis, and the prevalence of grass pollen allergen components in China, in contrast to those from western countries. Even in this country, allergies to grass pollen allergen components in the vast south are inadequately described. This study aimed to determine the major sensitizing grass pollens in Guangzhou, the largest city in Guangdong province of southern China. Included in this study were 258 patients having allergic rhinitis with or without asthma and 88 healthy controls. ImmunoCap100 was used to examine the serum samples for sIgE to Bermuda, Timothy, and Humulus scandens. Subjects who tested positive were further examined for sIgE to Bermuda antigen Cyn d 1, Timothy antigens Phl p 1/4/5/6/7/11/12, and CCD. The relationship of grass pollen allergy to specific antigen sensitization was assessed. As a result, 22.5% of patients with allergic rhinitis and/or asthma were positive for Bermuda-sIgE, 13.6% for Timothy-sIgE, and 7.0% for Humulus scandens-sIgE. These patients were more likely to be sensitized compared with controls (P<0.001). Of the Bermuda-sIgE positive patients, 53.4% were Cyn d 1 positive and 60.3% were Timothy-sIgE positive. Of the Timothy positive patients, 100% were positive for Phl p 4, 17.1% were positive for Phl p 1 and 8.6% tested positive for Phl p 5/6/7/11/12. Patients with high Bermuda-sIgE levels were more likely to be positive for other grasses. In 41.4% of Bermuda grass positive patients, CCD-sIgE was also positive. Sensitization to Phl p 4 was significantly correlated with CCD (rs=0.928).In summary, we found that these southern Chinese patients with allergic rhinitis and/or asthma tested positive for Bermuda, Timothy, and Humulus scandens IgE. A high Bermuda-sIgE level may predict sensitization to other grasses. Correlations between sensitization to CCD and grass pollen allergens suggested a likelihood of cross-reactivity. Further in vitro inhibition assays are required to confirm this relationship.
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Affiliation(s)
- Wenting Luo
- State Key Laboratory of Respiratory Disease, Guangzhou 510120, Guangdong, China; National Clinical Research Center of Respiratory Disease, Guangzhou 510120, Guangdong, China; Guangzhou Institute of Respiratory Diseases, Guangzhou 510120, Guangdong, China; First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, Guangdong, China; Guangzhou Medical University, Guangzhou 510120, Guangdong, China
| | - Huimin Huang
- State Key Laboratory of Respiratory Disease, Guangzhou 510120, Guangdong, China; National Clinical Research Center of Respiratory Disease, Guangzhou 510120, Guangdong, China; Guangzhou Institute of Respiratory Diseases, Guangzhou 510120, Guangdong, China; First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, Guangdong, China; Guangzhou Medical University, Guangzhou 510120, Guangdong, China
| | - Peiyan Zheng
- State Key Laboratory of Respiratory Disease, Guangzhou 510120, Guangdong, China; National Clinical Research Center of Respiratory Disease, Guangzhou 510120, Guangdong, China; Guangzhou Institute of Respiratory Diseases, Guangzhou 510120, Guangdong, China; First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, Guangdong, China; Guangzhou Medical University, Guangzhou 510120, Guangdong, China
| | - Nili Wei
- State Key Laboratory of Respiratory Disease, Guangzhou 510120, Guangdong, China; National Clinical Research Center of Respiratory Disease, Guangzhou 510120, Guangdong, China; Guangzhou Institute of Respiratory Diseases, Guangzhou 510120, Guangdong, China; First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, Guangdong, China; Guangzhou Medical University, Guangzhou 510120, Guangdong, China
| | - Jiaying Luo
- State Key Laboratory of Respiratory Disease, Guangzhou 510120, Guangdong, China; National Clinical Research Center of Respiratory Disease, Guangzhou 510120, Guangdong, China; Guangzhou Institute of Respiratory Diseases, Guangzhou 510120, Guangdong, China; First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, Guangdong, China; Guangzhou Medical University, Guangzhou 510120, Guangdong, China
| | - Baoqing Sun
- State Key Laboratory of Respiratory Disease, Guangzhou 510120, Guangdong, China; National Clinical Research Center of Respiratory Disease, Guangzhou 510120, Guangdong, China; Guangzhou Institute of Respiratory Diseases, Guangzhou 510120, Guangdong, China; First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, Guangdong, China; Guangzhou Medical University, Guangzhou 510120, Guangdong, China.
| | - Guangqiao Zeng
- State Key Laboratory of Respiratory Disease, Guangzhou 510120, Guangdong, China; National Clinical Research Center of Respiratory Disease, Guangzhou 510120, Guangdong, China; Guangzhou Institute of Respiratory Diseases, Guangzhou 510120, Guangdong, China; First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, Guangdong, China; Guangzhou Medical University, Guangzhou 510120, Guangdong, China.
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26
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Becker S, Schlederer T, Kramer MF, Haack M, Vrtala S, Resch Y, Lupinek C, Valenta R, Gröger M. Real-Life Study for the Diagnosis of House Dust Mite Allergy - The Value of Recombinant Allergen-Based IgE Serology. Int Arch Allergy Immunol 2016; 170:132-7. [DOI: 10.1159/000447694] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 06/15/2016] [Indexed: 11/19/2022] Open
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27
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Cantillo JF, Puerta L, Lafosse-Marin S, Subiza JL, Caraballo L, Fernández-Caldas E. Identification and Characterization of IgE-Binding Tropomyosins in Aedes aegypti. Int Arch Allergy Immunol 2016; 170:46-56. [PMID: 27355916 DOI: 10.1159/000447298] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Accepted: 05/31/2016] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND The mosquito Aedes aegypti is a potential source of important clinically relevant allergens. However, the allergenicity and cross-reactivity of most of these has not been fully described. METHODS Natural wild-type mosquito tropomyosin was purified by size exclusion and anionic-exchange chromatography from an A. aegypti extract. Further characterization was accomplished by MALDI-TOF/TOF. Two recombinant variants of tropomyosin were obtained by expression in Escherichia coli. Specific IgE measurement by ELISA and skin tests for mosquito extract were performed in 12 patients with asthma or allergy rhinitis residing on the Caribbean island of Martinique. Cross-reactivity between natural A. aegypti tropomyosin and recombinant tropomyosins from A. aegypti, house dust mite, shrimp and Ascaris lumbricoides was analyzed by ELISA competition. RESULTS Four variants of natural tropomyosin were purified. A band of 32 kDa in SDS-PAGE representing 2 tropomyosin variants (Aed a 10.0101 and Aed a 10.0201) reacted with specific IgE of 4 of the 12 (33%) allergic patients and with rabbit polyclonal anti-shrimp tropomyosin. A high degree of cross-reactivity (60-70%) was detected between natural mosquito tropomyosin and Blo t 10, Der p 10 and Lit v 1, and a lower degree with Asc l 3 from A. lumbricoides (<30%). rAed a 10.0101 inhibited IgE binding to natural A. aegypti tropomyosin; however, rAed a 10.0201 showed a low inhibitory capacity. CONCLUSION Tropomyosin is a new IgE-binding protein from A. aegypti. Two of the 4 variants identified showed different degree of cross-reactivity with tropomyosins from other arthropods. The potential allergenic role of each variant should be further investigated.
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28
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Caraballo L, Zakzuk J, Lee BW, Acevedo N, Soh JY, Sánchez-Borges M, Hossny E, García E, Rosario N, Ansotegui I, Puerta L, Sánchez J, Cardona V. Particularities of allergy in the Tropics. World Allergy Organ J 2016; 9:20. [PMID: 27386040 PMCID: PMC4924335 DOI: 10.1186/s40413-016-0110-7] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Accepted: 05/25/2016] [Indexed: 12/27/2022] Open
Abstract
Allergic diseases are distributed worldwide and their risk factors and triggers vary according to geographical and socioeconomic conditions. Allergies are frequent in the Tropics but aspects of their prevalence, natural history, risk factors, sensitizers and triggers are not well defined and some are expected to be different from those in temperate zone countries. The aim of this review is to investigate if allergic diseases in the Tropics have particularities that deserve special attention for research and clinical practice. Such information will help to form a better understanding of the pathogenesis, diagnosis and management of allergic diseases in the Tropics. As expected, we found particularities in the Tropics that merit further study because they strongly affect the natural history of common allergic diseases; most of them related to climate conditions that favor permanent exposure to mite allergens, helminth infections and stinging insects. In addition, we detected several unmet needs in important areas which should be investigated and solved by collaborative efforts led by the emergent research groups on allergy from tropical countries.
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Affiliation(s)
- Luis Caraballo
- />Institute for Immunological Research, University of Cartagena, Cra. 5 # 7-77, Cartagena, Colombia
| | - Josefina Zakzuk
- />Institute for Immunological Research, University of Cartagena, Cra. 5 # 7-77, Cartagena, Colombia
| | - Bee Wah Lee
- />Khoo Teck Puat- National University Children’s Medical Institute, National University Health System, Singapore, Singapore
- />Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Nathalie Acevedo
- />Department of Medicine Solna, Karolinska Institutet, Translational Immunology Unit, Stockholm, Sweden
| | - Jian Yi Soh
- />Khoo Teck Puat- National University Children’s Medical Institute, National University Health System, Singapore, Singapore
- />Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Mario Sánchez-Borges
- />Allergy and Clinical Immunology Department, Centro Médico- Docente La Trinidad and Clínica El Avila, Caracas, Venezuela
| | - Elham Hossny
- />Pediatric Allergy and Immunology Unit, Children’s Hospital, Ain Shams University, Cairo, Egypt
| | - Elizabeth García
- />Allergy Section, Fundación Santa Fe de Bogotá, Faculty of Medicine, Universidad de los Andes, Bogotá, Colombia
| | - Nelson Rosario
- />Federal University of Parana, Rua General Carneiro, Curitiba, Brazil
| | - Ignacio Ansotegui
- />Department of Allergy and Immunology, Hospital Quirón Bizkaia, Bilbao, Spain
| | - Leonardo Puerta
- />Institute for Immunological Research, University of Cartagena, Cra. 5 # 7-77, Cartagena, Colombia
| | - Jorge Sánchez
- />Department of Pediatrics, Graduate Program on Allergology, University of Antioquia, Medellín, Colombia
| | - Victoria Cardona
- />Allergy Section, Department of Internal Medicine, Hospital Vall d’Hebron, Barcelona, Spain
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29
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Matricardi PM, Kleine-Tebbe J, Hoffmann HJ, Valenta R, Hilger C, Hofmaier S, Aalberse RC, Agache I, Asero R, Ballmer-Weber B, Barber D, Beyer K, Biedermann T, Bilò MB, Blank S, Bohle B, Bosshard PP, Breiteneder H, Brough HA, Caraballo L, Caubet JC, Crameri R, Davies JM, Douladiris N, Ebisawa M, EIgenmann PA, Fernandez-Rivas M, Ferreira F, Gadermaier G, Glatz M, Hamilton RG, Hawranek T, Hellings P, Hoffmann-Sommergruber K, Jakob T, Jappe U, Jutel M, Kamath SD, Knol EF, Korosec P, Kuehn A, Lack G, Lopata AL, Mäkelä M, Morisset M, Niederberger V, Nowak-Węgrzyn AH, Papadopoulos NG, Pastorello EA, Pauli G, Platts-Mills T, Posa D, Poulsen LK, Raulf M, Sastre J, Scala E, Schmid JM, Schmid-Grendelmeier P, van Hage M, van Ree R, Vieths S, Weber R, Wickman M, Muraro A, Ollert M. EAACI Molecular Allergology User's Guide. Pediatr Allergy Immunol 2016; 27 Suppl 23:1-250. [PMID: 27288833 DOI: 10.1111/pai.12563] [Citation(s) in RCA: 512] [Impact Index Per Article: 64.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The availability of allergen molecules ('components') from several protein families has advanced our understanding of immunoglobulin E (IgE)-mediated responses and enabled 'component-resolved diagnosis' (CRD). The European Academy of Allergy and Clinical Immunology (EAACI) Molecular Allergology User's Guide (MAUG) provides comprehensive information on important allergens and describes the diagnostic options using CRD. Part A of the EAACI MAUG introduces allergen molecules, families, composition of extracts, databases, and diagnostic IgE, skin, and basophil tests. Singleplex and multiplex IgE assays with components improve both sensitivity for low-abundance allergens and analytical specificity; IgE to individual allergens can yield information on clinical risks and distinguish cross-reactivity from true primary sensitization. Part B discusses the clinical and molecular aspects of IgE-mediated allergies to foods (including nuts, seeds, legumes, fruits, vegetables, cereal grains, milk, egg, meat, fish, and shellfish), inhalants (pollen, mold spores, mites, and animal dander), and Hymenoptera venom. Diagnostic algorithms and short case histories provide useful information for the clinical workup of allergic individuals targeted for CRD. Part C covers protein families containing ubiquitous, highly cross-reactive panallergens from plant (lipid transfer proteins, polcalcins, PR-10, profilins) and animal sources (lipocalins, parvalbumins, serum albumins, tropomyosins) and explains their diagnostic and clinical utility. Part D lists 100 important allergen molecules. In conclusion, IgE-mediated reactions and allergic diseases, including allergic rhinoconjunctivitis, asthma, food reactions, and insect sting reactions, are discussed from a novel molecular perspective. The EAACI MAUG documents the rapid progression of molecular allergology from basic research to its integration into clinical practice, a quantum leap in the management of allergic patients.
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Affiliation(s)
- P M Matricardi
- Paediatric Pneumology and Immunology, Charitè Medical University, Berlin, Germany
| | - J Kleine-Tebbe
- Allergy & Asthma Center Westend, Outpatient Clinic Ackermann, Hanf, & Kleine-Tebbe, Berlin, Germany
| | - H J Hoffmann
- Department of Respiratory Diseases and Allergy, Institute of Clinical Medicine, Aarhus University and Aarhus University Hospital, Aarhus, Denmark
| | - R Valenta
- Division of Immunopathology, Department of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - C Hilger
- Department of Infection & Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
| | - S Hofmaier
- Paediatric Pneumology and Immunology, Charitè Medical University, Berlin, Germany
| | - R C Aalberse
- Sanquin Research, Department of Immunopathology, Amsterdam, The Netherlands
- Landsteiner Laboratory, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands
| | - I Agache
- Department of Allergy and Clinical Immunology, Faculty of Medicine, Transylvania University of Brasov, Brasov, Romania
| | - R Asero
- Ambulatorio di Allergologia, Clinica San Carlo, Paderno Dugnano, Italy
| | - B Ballmer-Weber
- Allergy Unit, Department of Dermatology, University Hospital Zürich, Zürich, Switzerland
| | - D Barber
- IMMA-School of Medicine, University CEU San Pablo, Madrid, Spain
| | - K Beyer
- Paediatric Pneumology and Immunology, Charitè Medical University, Berlin, Germany
| | - T Biedermann
- Department of Dermatology and Allergology, Technical University Munich, Munich, Germany
| | - M B Bilò
- Allergy Unit, Department of Internal Medicine, University Hospital Ospedali Riuniti di Ancona, Ancona, Italy
| | - S Blank
- Center of Allergy and Environment (ZAUM), Helmholtz Center Munich, Technical University of Munich, Munich, Germany
| | - B Bohle
- Division of Experimental Allergology, Department of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology & Immunology, Medical University of Vienna, Vienna, Austria
| | - P P Bosshard
- Allergy Unit, Department of Dermatology, University Hospital Zürich, Zürich, Switzerland
| | - H Breiteneder
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria
| | - H A Brough
- Paediatric Allergy, Department of Asthma, Allergy and Respiratory Science, King's College London, Guys' Hospital, London, UK
| | - L Caraballo
- Institute for Immunological Research, The University of Cartagena, Cartagena de Indias, Colombia
| | - J C Caubet
- Pediatric Allergy Unit, Department of Child and Adolescent, University Hospitals of Geneva, Geneva, Switzerland
| | - R Crameri
- Swiss Institute of Allergy and Asthma Research, University of Zürich, Davos, Switzerland
| | - J M Davies
- School of Biomedical Sciences, Institute of Biomedical Innovation, Queensland University of Technology, Brisbane, Qld, Australia
| | - N Douladiris
- Allergy Unit, 2nd Paediatric Clinic, National & Kapodistrian University, Athens, Greece
| | - M Ebisawa
- Department of Allergy, Clinical Research Center for Allergology and Rheumatology, Sagamihara National Hospital, Kanagawa, Japan
| | - P A EIgenmann
- Pediatric Allergy Unit, Department of Child and Adolescent, University Hospitals of Geneva, Geneva, Switzerland
| | - M Fernandez-Rivas
- Allergy Department, Hospital Clinico San Carlos IdISSC, Madrid, Spain
| | - F Ferreira
- Division of Allergy and Immunology, Department of Molecular Biology, University of Salzburg, Salzburg, Austria
| | - G Gadermaier
- Division of Allergy and Immunology, Department of Molecular Biology, University of Salzburg, Salzburg, Austria
| | - M Glatz
- Allergy Unit, Department of Dermatology, University Hospital Zürich, Zürich, Switzerland
- Christine Kühne Center for Allergy Research and Education CK-CARE, Davos, Switzerland
| | - R G Hamilton
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - T Hawranek
- Department of Dermatology, Paracelsus Private Medical University, Salzburg, Austria
| | - P Hellings
- Department of Otorhinolaryngology, Academic Medical Center (AMC), Amsterdam, The Netherlands
- Department of Otorhinolaryngology, University Hospitals Leuven, Leuven, Belgium
| | - K Hoffmann-Sommergruber
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria
| | - T Jakob
- Department of Dermatology and Allergology, University Medical Center Giessen and Marburg, Justus Liebig University Giessen, Giessen, Germany
| | - U Jappe
- Division of Clinical and Molecular Allergology, Research Centre Borstel, Airway Research Centre North (ARCN), Member of the German Centre for Lung Research (DZL), Borstel, Germany
- Interdisciplinary Allergy Division, Department of Pneumology, University of Lübeck, Lübeck, Germany
| | - M Jutel
- Department of Clinical Immunology, 'ALL-MED' Medical Research Institute, Wrocław Medical University, Wrocław, Poland
| | - S D Kamath
- Molecular Allergy Research Laboratory, Centre for Biodiscovery and Molecular Development of Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Townsville City, Qld, Australia
| | - E F Knol
- Departments of Immunology and Dermatology/Allergology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - P Korosec
- University Clinic of Respiratory and Allergic Diseases, Golnik, Slovenia
| | - A Kuehn
- Department of Infection & Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
| | - G Lack
- King's College London, MRC & Asthma UK Centre in Allergic Mechanisms of Asthma, London, UK
- Division of Asthma, Allergy and Lung Biology, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - A L Lopata
- Department of Clinical Immunology, 'ALL-MED' Medical Research Institute, Wrocław Medical University, Wrocław, Poland
| | - M Mäkelä
- Skin and Allergy Hospital, Helsinki University Central Hospital and University of Helsinki, Helsinki, Finland
| | - M Morisset
- National Service of Immuno-Allergology, Centre Hospitalier Luxembourg (CHL), Luxembourg, UK
| | - V Niederberger
- Department of Otorhinolaryngology, Medical University of Vienna, Vienna, Austria
| | - A H Nowak-Węgrzyn
- Pediatric Allergy and Immunology, Jaffe Food Allergy Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - N G Papadopoulos
- Centre for Paediatrics and Child Health, Institute of Human Development, University of Manchester, Manchester, UK
| | - E A Pastorello
- Unit of Allergology and Immunology, Niguarda Ca' Granda Hospital, Milan, Italy
| | - G Pauli
- Service de Pneumologie, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - T Platts-Mills
- Department of Microbiology & Immunology, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - D Posa
- Paediatric Pneumology and Immunology, Charitè Medical University, Berlin, Germany
| | - L K Poulsen
- Allergy Clinic, Copenhagen University Hospital, Copenhagen, Denmark
| | - M Raulf
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Ruhr-University Bochum (IPA), Bochum, Germany
| | - J Sastre
- Allergy Division, Fundación Jimenez Díaz, Madrid, Spain
| | - E Scala
- Experimental Allergy Unit, IDI-IRCCS, Rome, Italy
| | - J M Schmid
- Department of Respiratory Diseases and Allergy, Institute of Clinical Medicine, Aarhus University and Aarhus University Hospital, Aarhus, Denmark
| | - P Schmid-Grendelmeier
- Allergy Unit, Department of Dermatology, University Hospital Zürich, Zürich, Switzerland
- Christine Kühne Center for Allergy Research and Education CK-CARE, Davos, Switzerland
| | - M van Hage
- Department of Medicine Solna, Clinical Immunology and Allergy Unit, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - R van Ree
- Departments of Experimental Immunology and of Otorhinolaryngology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - S Vieths
- Department of Allergology, Paul-Ehrlich-Institut, Langen, Germany
| | - R Weber
- School of Medicine, University of Colorado, Denver, CO, USA
- Department of Medicine, National Jewish Health Service, Denver, CO, USA
| | - M Wickman
- Sachs' Children's Hospital, Karolinska Institutet, Stockholm, Sweden
| | - A Muraro
- The Referral Centre for Food Allergy Diagnosis and Treatment Veneto Region, Department of Mother and Child Health, University of Padua, Padua, Italy
| | - M Ollert
- Department of Infection & Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Department of Dermatology and Allergy Center, Odense Research Center for Anaphylaxis, University of Southern Denmark, Odense, Denmark
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López-Matas MA, de Larramendi CH, Moya R, Sánchez-Guerrero I, Ferrer A, Huertas AJ, Flores I, Navarro LA, García-Abujeta JL, Vicario S, Andreu C, Peña M, Carnés J. In vivo diagnosis with purified tropomyosin in mite and shellfish allergic patients. Ann Allergy Asthma Immunol 2016; 116:538-43. [PMID: 27132158 DOI: 10.1016/j.anai.2016.03.034] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Revised: 02/25/2016] [Accepted: 03/31/2016] [Indexed: 10/21/2022]
Abstract
BACKGROUND Tropomyosin is the most studied shellfish allergen and has been involved in cross-reactivity among different invertebrates (crustacean, mollusks, mites, insects, and nematodes). OBJECTIVE To determine the relevance of tropomyosin in mite- and shellfish-sensitized patients using tropomyosin skin testing. METHODS Patients were divided into 3 groups: group M included mite allergic patients (ie, individuals with respiratory symptoms and a positive result on skin prick testing [SPT] to house dust mites), group S included shellfish allergic patients (ie, individuals who reported symptoms with shellfish), and group MS included mite- and shellfish allergic patients (ie, individuals who simultaneously fulfilled the inclusion criteria for groups M and S). Tropomyosin was purified from shrimp, characterized, and used in SPT for diagnosis in the patient population. RESULTS Eight hundred fifty patients were included in the study: 790 (92.9%) in group M, 21 (2.5%) in group S, and 39 (4.6%) in group MS. Tropomyosin was purified from shrimp with a purity higher than 95%. Forty-two individuals tested positive to tropomyosin: the prevalence was 2.7% in group M, 28.6% in group S, and 38.5% in patients of group MS. Twenty-one (50%) of the tropomyosin-positive individuals had symptoms with shellfish, and 3 (14.3%) reported anaphylaxis. CONCLUSION The prevalence of tropomyosin was low in mite-sensitized patients (2.7 %) and high in shellfish allergic patients (28.6%). The higher prevalence of tropomyosin was found in patients sensitized to both mite and shellfish (38.5%). The selection of tropomyosin-sensitized patients by SPT might help in the choice of appropriate treatments or management for these patients.
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Affiliation(s)
| | - Carlos H de Larramendi
- Allergy Section, Hospital Marina Baixa, Villajoyosa and Centro de Especialidades Foietes, Benidorm, Alicante, Spain
| | - Raquel Moya
- R&D Department, Laboratorios LETI S.L., Tres Cantos, Madrid, Spain
| | | | - Angel Ferrer
- Allergy Unit, Hospital General Universitario de Elche, Elche, Alicante, Spain
| | - Angel Julio Huertas
- Allergy Section, Complejo Hospitalario Universitario de Cartagena, Cartagena, Murcia, Spain
| | - Isabel Flores
- Allergy Unit, Hospital de la Vega Baja, Orihuela, Alicante, Spain
| | - Luis Angel Navarro
- Allergy Unit, Centro de Especialidades El Españoleto, Játiva, Valencia, Spain
| | - José Luis García-Abujeta
- Allergy Section, Hospital Marina Baixa, Villajoyosa and Centro de Especialidades Foietes, Benidorm, Alicante, Spain
| | - Sandra Vicario
- Allergy Section, Hospital Marina Baixa, Villajoyosa and Centro de Especialidades Foietes, Benidorm, Alicante, Spain
| | - Carmen Andreu
- Allergy Unit, Hospital de la Vega Baja, Orihuela, Alicante, Spain
| | - Maribel Peña
- Allergy Unit, Hospital de la Vega Baja, Orihuela, Alicante, Spain
| | - Jerónimo Carnés
- R&D Department, Laboratorios LETI S.L., Tres Cantos, Madrid, Spain.
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Ahumada V, García E, Dennis R, Rojas MX, Rondón MA, Pérez A, Peñaranda A, Barragán AM, Jimenez S, Kennedy MW, Caraballo L. IgE responses to Ascaris and mite tropomyosins are risk factors for asthma. Clin Exp Allergy 2016; 45:1189-200. [PMID: 25702830 DOI: 10.1111/cea.12513] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Revised: 02/06/2015] [Accepted: 02/09/2015] [Indexed: 11/28/2022]
Abstract
BACKGROUND The relationship between helminthiases and allergy is a matter of considerable interest and research. In the tropics, house dust mite exposure, a known risk factor for asthma, is frequently concurrent with helminth infections. It remains to be defined whether infection with the common roundworm Ascaris or its bystander immunological effects influence the prevalence and pathogenesis of asthma independently of mite sensitization. OBJECTIVE To investigate the relationship between the IgE responses to Ascaris and its purified allergens and the risk of asthma in a tropical country. METHODS A nested case-control study was performed in 356 subjects who reported current and past asthma symptoms (asthmatics) and 435 controls that had never experienced such symptoms. They were tested for serum levels of total IgE and specific IgE to Ascaris extract, Asc s 1 (ABA-1), Asc l 3 (tropomyosin) and GST (glutathione transferase). In addition, specific IgE to Dermatophagoides pteronyssinus, Blomia tropicalis and their tropomyosins Der p 10 and Blo t 10 was measured. Sensitization was defined as a positive specific IgE result to any extract or recombinant allergen. RESULTS Sensitization to Ascaris and D. pteronyssinus was independently associated with asthma after adjustment for age, gender, socio-economic stratum, city and other IgE levels (adjusted ORs: 2.17; 95% CI 1.37-3.42 and 2.46; 95% CI 1.54-3.92), respectively. There was also a significant association with sensitization to the highly allergenic and cross-reactive tropomyosins Asc l 3, Blo t 10 and Der p10 (aORs: 1.76; 95% CI 1.21-2.57, 1.64; 95% CI 1.14-2.35 and 1.51; 95% CI 1.02-2.24), respectively. CONCLUSION AND CLINICAL RELEVANCE IgE responses to Ascaris are associated with asthma symptoms in a population living in the tropics. Sensitization to the cross-reactive Ascaris and mite tropomyosins partially underlies this finding. These results have potential relevance in asthma diagnosis and management.
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Affiliation(s)
- V Ahumada
- Institute for Immunological Research, University of Cartagena, Cartagena, Colombia
| | - E García
- Division of Pediatric Allergy and Otorhinolaryngology, Fundación Santafé de Bogotá, Bogotá, Colombia
| | - R Dennis
- Research Department, Fundación Cardioinfantil - Instituto de Cardiología, Bogotá, Colombia.,Department of Clinical Epidemiology and Biostatistics, School of Medicine, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - M X Rojas
- Department of Clinical Epidemiology and Biostatistics, School of Medicine, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - M A Rondón
- Department of Clinical Epidemiology and Biostatistics, School of Medicine, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - A Pérez
- Division of Biostatistics, School of Public Health, University of Texas Health Science Center at Houston, Houston, TX, USA.,Michael & Susan Dell Center for Healthy Living, Austin, TX, USA
| | - A Peñaranda
- Division of Pediatric Allergy and Otorhinolaryngology, Fundación Santafé de Bogotá, Bogotá, Colombia
| | - A M Barragán
- Research Department, Fundación Cardioinfantil - Instituto de Cardiología, Bogotá, Colombia.,Health Sciences Research Center (CICS), Universidad del Rosario, Bogotá, Colombia
| | - S Jimenez
- Institute for Immunological Research, University of Cartagena, Cartagena, Colombia.,Foundation for the Development of Medical and Biological Sciences (Fundemeb), Cartagena, Colombia
| | - M W Kennedy
- Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Glasgow, UK.,Institute of Molecular, Cell and Systems Biology, University of Glasgow, Glasgow, UK
| | - L Caraballo
- Institute for Immunological Research, University of Cartagena, Cartagena, Colombia.,Foundation for the Development of Medical and Biological Sciences (Fundemeb), Cartagena, Colombia
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Valenta R, Wollmann E. Bedeutung rekombinanter Allergene und Allergenderivate. ALLERGOLOGIE 2016. [DOI: 10.1007/978-3-642-37203-2_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Araujo L, Rosario N, Mari A. Molecular-based diagnosis of respiratory allergic diseases in children from Curitiba, a city in Southern Brazil. Allergol Immunopathol (Madr) 2016; 44:18-22. [PMID: 25982581 DOI: 10.1016/j.aller.2015.03.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Revised: 03/11/2015] [Accepted: 03/24/2015] [Indexed: 10/23/2022]
Abstract
BACKGROUND Prevalence of respiratory allergic diseases has increased worldwide. Identification of the aeroallergens involved in allergenic sensitisation is important for diagnosis, treatment and prevention. OBJECTIVE To verify the molecular pattern of sensitisation to aeroallergens in patients with allergic respiratory diseases using microarray technique for specific IgE antibody detection. METHODS Cross-sectional study of 101 children with allergic rhinitis was followed in an outpatient clinic. All patients had positive skin prick tests (SPT) to at least one of the following antigens: Dermatophagoides pteronyssinus, Blomia tropicalis, Blattella germanica, Lolium multiflorum, and dog and cat epithelium. Serum specific IgE antibodies (sIgE) to mites, animal epithelia, fungi, cockroach and pollens components were determined by ImmunoCAP ISAC. RESULTS sIgE to group 1 and 2 mite allergens showed higher positive rates: Der p 1 (74.2%), Der p 2 (73.3%), Der f 1 (74.2%), Der f 2 (72.3%). sIgE to animal epithelia were less frequent, Can f 1, Can f 2, Can f 3 in 4.9%, 2.9%, 1.9% respectively and Fel d 1, Fel d 2, Fel d 4 in 16.8%, 0.9% and 1.9%. respectively. Sensitisation to fungi and cockroach were rare, except for Bla g 7, to which 16.8% were positive. There was no significant recognition for tree pollens group. For grass, sIgE were detected to Cyn d 1 in 16.8%, Phl p 1 and Phl p 4 in 14.8% and 12.9%, respectively. CONCLUSION Knowing that the pattern of allergic sensitisation varies according to environment and population, our results reinforce the need for local studies, using molecular-based diagnosis.
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Markerallergene und Panallergene bei Baum- und Gräserpollenallergie. ALLERGO JOURNAL 2015. [DOI: 10.1007/s15007-015-0872-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Gangl K, Niederberger V, Valenta R, Nandy A. Marker allergens and panallergens in tree and grass pollen allergy. ACTA ACUST UNITED AC 2015. [DOI: 10.1007/s40629-015-0055-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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D'Amato G, Holgate ST, Pawankar R, Ledford DK, Cecchi L, Al-Ahmad M, Al-Enezi F, Al-Muhsen S, Ansotegui I, Baena-Cagnani CE, Baker DJ, Bayram H, Bergmann KC, Boulet LP, Buters JTM, D'Amato M, Dorsano S, Douwes J, Finlay SE, Garrasi D, Gómez M, Haahtela T, Halwani R, Hassani Y, Mahboub B, Marks G, Michelozzi P, Montagni M, Nunes C, Oh JJW, Popov TA, Portnoy J, Ridolo E, Rosário N, Rottem M, Sánchez-Borges M, Sibanda E, Sienra-Monge JJ, Vitale C, Annesi-Maesano I. Meteorological conditions, climate change, new emerging factors, and asthma and related allergic disorders. A statement of the World Allergy Organization. World Allergy Organ J 2015; 8:25. [PMID: 26207160 PMCID: PMC4499913 DOI: 10.1186/s40413-015-0073-0] [Citation(s) in RCA: 254] [Impact Index Per Article: 28.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Accepted: 05/29/2015] [Indexed: 01/08/2023] Open
Abstract
The prevalence of allergic airway diseases such as asthma and rhinitis has increased dramatically to epidemic proportions worldwide. Besides air pollution from industry derived emissions and motor vehicles, the rising trend can only be explained by gross changes in the environments where we live. The world economy has been transformed over the last 25 years with developing countries being at the core of these changes. Around the planet, in both developed and developing countries, environments are undergoing profound changes. Many of these changes are considered to have negative effects on respiratory health and to enhance the frequency and severity of respiratory diseases such as asthma in the general population. Increased concentrations of greenhouse gases, and especially carbon dioxide (CO2), in the atmosphere have already warmed the planet substantially, causing more severe and prolonged heat waves, variability in temperature, increased air pollution, forest fires, droughts, and floods – all of which can put the respiratory health of the public at risk. These changes in climate and air quality have a measurable impact not only on the morbidity but also the mortality of patients with asthma and other respiratory diseases. The massive increase in emissions of air pollutants due to economic and industrial growth in the last century has made air quality an environmental problem of the first order in a large number of regions of the world. A body of evidence suggests that major changes to our world are occurring and involve the atmosphere and its associated climate. These changes, including global warming induced by human activity, have an impact on the biosphere, biodiversity, and the human environment. Mitigating this huge health impact and reversing the effects of these changes are major challenges. This statement of the World Allergy Organization (WAO) raises the importance of this health hazard and highlights the facts on climate-related health impacts, including: deaths and acute morbidity due to heat waves and extreme meteorological events; increased frequency of acute cardio-respiratory events due to higher concentrations of ground level ozone; changes in the frequency of respiratory diseases due to trans-boundary particle pollution; altered spatial and temporal distribution of allergens (pollens, molds, and mites); and some infectious disease vectors. According to this report, these impacts will not only affect those with current asthma but also increase the incidence and prevalence of allergic respiratory conditions and of asthma. The effects of climate change on respiratory allergy are still not well defined, and more studies addressing this topic are needed. Global warming is expected to affect the start, duration, and intensity of the pollen season on the one hand, and the rate of asthma exacerbations due to air pollution, respiratory infections, and/or cold air inhalation, and other conditions on the other hand.
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Affiliation(s)
- Gennaro D'Amato
- Department of Respiratory Diseases, Division of Pneumology and Allergology, High Specialty Hospital "A. Cardarelli" Napoli, Italy, University of Naples Medical School, Via Rione Sirignano, 10, 80121 Napoli, Italy
| | - Stephen T Holgate
- Southampton General Hospital, Clinical and Experimental Sciences, University of Southampton, Hampshire, UK
| | - Ruby Pawankar
- Department of Pediatrics, Nippon Medical School, Tokyo, Japan
| | - Dennis K Ledford
- Morsani College of Medicine, University of South Florida, Tampa, Florida
| | - Lorenzo Cecchi
- Interdepartmental Centre of Bioclimatology, University of Florence Allergy and Clinical Immunology Section, Azienda Sanitaria di Prato, Italy
| | - Mona Al-Ahmad
- Department of Allergy, Al-Rashid Center, Ministry of Health, Khobar, Kuwait
| | - Fatma Al-Enezi
- Al-Rashid Allergy and Respiratory Center, Khobar, Kuwait
| | - Saleh Al-Muhsen
- Department of Pediatrics, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Ignacio Ansotegui
- Department of Allergy and Immunology, Hospital Quirón Bizkaia, Erandio, Spain
| | - Carlos E Baena-Cagnani
- Centre for Research in Respiratory Medicine, Faculty of Medicine, Catholic University of Córdoba, Córdoba, Argentina
| | - David J Baker
- Emeritus Consultant Anaesthesiologist, SAMU de Paris, Hôpital Necker - Enfants Malades, Paris, France
| | - Hasan Bayram
- Department of Chest Diseases, Respiratory Research Laboratory, Allergy Division, School of Medicine, University of Gaziantep, Şehitkamil/Gaziantep, 27310 Turkey
| | | | - Louis-Philippe Boulet
- Quebec Heart and Lung Institute, Laval University, 2725 chemin Sainte-Foy, Quebec City, G1V 4G5 Canada
| | - Jeroen T M Buters
- ZAUM - Center of Allergy and Environment, Helmholtz Zentrum München/Technische Universität München, Munich, Germany
| | - Maria D'Amato
- University of Naples, Institute of Respiratory Diseases, Naples, Italy
| | - Sofia Dorsano
- World Allergy Organization, Milwaukee, Wisconsin United States
| | - Jeroen Douwes
- Centre for Public Health Research, Massey University, Wellington, New Zealand
| | - Sarah Elise Finlay
- Consultant in Emergency Medicine, Chelsea and Westminster Hospital, London, UK
| | - Donata Garrasi
- Development Assistance Committee, Organisation of Economic Cooperation and Development, Paris, France
| | | | - Tari Haahtela
- Skin and Allergy Hospital, Helsinki University Hospital, Helsinki, Finland
| | - Rabih Halwani
- Prince Naif Center for Immunology Research, College of Medicine, King Saud University, P.O.Box 2925, Postal Code 11461 Riyadh, Saudi Arabia
| | - Youssouf Hassani
- Epidemiology of Respiratory and Allergic Disease Department, UMR-S, Institute Pierre Louis of Epidemiology and Public Health, INSERM Medical School Saint-Antoine, UPMC Sorbonne Universités, Paris, France
| | - Basam Mahboub
- University of Sharjah, and, Rashid Hospital DHA, Abu Dhabi, United Arab Emirates
| | - Guy Marks
- South Western Sydney Clinical School, UNSW, Australia and Woolcock Institute of Medical Research, University of Sydney, Sydney, Australia
| | - Paola Michelozzi
- Dipartimento Epidemiologia Regione Lazio, UOC Epidemiologia Ambientale, Roma, Italy
| | - Marcello Montagni
- Department of Clinical and Experimental Medicine, University of Parma, Via Gramsci 14, 43100 Parma, Italy
| | - Carlos Nunes
- Center of Allergy of Algarve, Hospital Particular do Algarve, Particular do Algarve, Brasil
| | - Jay Jae-Won Oh
- Department of Pediatrics, Hanyang University College of Medicine, Seoul, Korea
| | - Todor A Popov
- Clinic of Allergy and Asthma, Medical University in Sofia, Sofia, Bulgaria
| | - Jay Portnoy
- Children's Mercy Hospitals & Clinics, Kansas City, Missouri USA
| | - Erminia Ridolo
- Department of Clinical and Experimental Medicine, University of Parma, Via Gramsci 14, 43100 Parma, Italy
| | - Nelson Rosário
- Division of Pediatric Respiratory Medicine, Hospital de Clínicas, Federal University of Parana, Rua Tte. João Gomes da Silva 226, 80810-100 Curitiba, PR Brazil
| | - Menachem Rottem
- Allergy Asthma and Immunology, Emek Medical Center, Afula, and the Rappaport Faculty of Medicine Technion, Israel Institute of Technology, Haifa, Israel
| | | | - Elopy Sibanda
- Asthma, Allergy and Immune Dysfunction Clinic, Harare, Zimbabwe
| | - Juan José Sienra-Monge
- Allergy and Immunology Department, Hospital Infantil de México Federico Gómez, SSA, México City, Mexico
| | - Carolina Vitale
- University of Naples, Institute of Respiratory Diseases, Naples, Italy
| | - Isabella Annesi-Maesano
- Epidemiology of Respiratory and Allergic Disease Department (EPAR), Institute Pierre Louis of Epidemiology and Public Health, UMR-S 1136, INSERM, Paris, France ; UPMC, Sorbonne Universités, Medical School Saint-Antoine, 803-804-806, 8 etage/Floor 27, Rue Chaligny, CEDEX 12, 75571 Paris, France
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Davies JM. Grass pollen allergens globally: the contribution of subtropical grasses to burden of allergic respiratory diseases. Clin Exp Allergy 2015; 44:790-801. [PMID: 24684550 DOI: 10.1111/cea.12317] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Grass pollens of the temperate (Pooideae) subfamily and subtropical subfamilies of grasses are major aeroallergen sources worldwide. The subtropical Chloridoideae (e.g. Cynodon dactylon; Bermuda grass) and Panicoideae (e.g. Paspalum notatum; Bahia grass) species are abundant in parts of Africa, India, Asia, Australia and the Americas, where a large and increasing proportion of the world's population abide. These grasses are phylogenetically and ecologically distinct from temperate grasses. With the advent of global warming, it is conceivable that the geographic distribution of subtropical grasses and the contribution of their pollen to the burden of allergic rhinitis and asthma will increase. This review aims to provide a comprehensive synthesis of the current global knowledge of (i) regional variation in allergic sensitivity to subtropical grass pollens, (ii) molecular allergenic components of subtropical grass pollens and (iii) allergic responses to subtropical grass pollen allergens in relevant populations. Patients from subtropical regions of the world show higher allergic sensitivity to grass pollens of Chloridoideae and Panicoideae grasses, than to temperate grass pollens. The group 1 allergens are amongst the allergen components of subtropical grass pollens, but the group 5 allergens, by which temperate grass pollen extracts are standardized for allergen content, appear to be absent from both subfamilies of subtropical grasses. Whilst there are shared allergenic components and antigenic determinants, there are additional clinically relevant subfamily-specific differences, at T- and B-cell levels, between pollen allergens of subtropical and temperate grasses. Differential immune recognition of subtropical grass pollens is likely to impact upon the efficacy of allergen immunotherapy of patients who are primarily sensitized to subtropical grass pollens. The literature reviewed herein highlights the clinical need to standardize allergen preparations for both types of subtropical grass pollens to achieve optimal diagnosis and treatment of patients with allergic respiratory disease in subtropical regions of the world.
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Affiliation(s)
- J M Davies
- Lung and Allergy Research Centre, School of Medicine, The University of Queensland, Translational Research Institute, Woolloongabba, Qld, Australia
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Abstract
Food allergy has been traditionally perceived as being rare in Africa. However, the prevalence of other allergic manifestations such as asthma and atopic dermatitis continue to rise in the higher-income African countries. Since the food allergy epidemic in westernized countries has lagged behind that of allergic respiratory conditions, we hypothesize that food allergy is increasing in Africa. This article systematically reviews the evidence for food allergy in Africa, obtained through searching databases including PubMed, Medline, MD Consult, and scholarly Google. Articles are divided into categories based on strength of methodological diagnosis of food allergy. Information was found for 11 African countries: Botswana, Democratic Republic of Congo, Ghana, Kenya, Morocco, Mozambique, Nigeria, South Africa, Tanzania, Tunisia, and Zimbabwe. Most studies reflect sensitization to food or self-reported symptoms. However, a few studies had more stringent diagnostic testing that is convincing for food allergy, mostly conducted in South Africa. Apart from the foods that commonly cause allergy in westernized countries, other regionally significant or novel food allergens may include pineapple (Ghana), okra (Nigeria), and mopane worm (Botswana). Food allergy is definitely an emerging disease in Africa and resources need to be diverted to study, diagnose, treat, and prevent this important disease.
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Affiliation(s)
- Shiang-Ju Kung
- Department of Paediatrics, University of Botswana, P O Box AC163, ACH, Riverwalk, Gaborone, Botswana,
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Ramavovololona, Sénéchal H, Andrianarisoa A, Rakotoarimanana V, Godfrin D, Peltre G, Poncet P, Sutra JP. High IgE sensitization to maize and rice pollen in the highlands of Madagascar. Pan Afr Med J 2014; 19:284. [PMID: 25870739 PMCID: PMC4391898 DOI: 10.11604/pamj.2014.19.284.4654] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2014] [Accepted: 11/06/2014] [Indexed: 01/15/2023] Open
Abstract
Introduction Maize and rice are two crops constituting the main food supply in many under-developed and developing countries. Despite the large area devoted to the culture, the sensitization to the pollen from these plants is reported to be low and often considered as an occupational allergy. Methods Sixty five Malagasy pollen allergic patients were clinically and immunochemically investigated with regard to maize and rice pollen allergens. Pollen extracts were electrophoretically separated in 1 and 2 dimensions and IgE and IgG reactivities detected upon immunoblotting. Results When exploring the sensitization profile of Malagasy allergic patients to maize and rice pollen, it appears that a high proportion of these patients consulting during grass pollinating season were sensitized to both pollen as revealed by skin prick testing (62 vs. 59%) and IgE immunoblotting (85 vs. 40%). Several clinically relevant allergens were recognized by patients’ serum IgE in maize and rice pollen extracts. Conclusion The high levels of maize and rice pollen sensitization should be related, in this tropical region, to a specific environmental exposure including i) a proximity of the population to the allergenic sources and ii) a putative exacerbating effect of a highly polluted urban atmosphere on pollen allergenicity. Cross-reactivities between wild and cultivated grasses and also between rice and maize pollen are involved as well as some specific maize sensitizations. The presence of dense urban and peri-urban agriculture, in various African regions and worldwide, could be a high environmental risk factor for people sensitive to maize pollen.
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Affiliation(s)
- Ramavovololona
- Sciences University, Biology and Plant Ecology Department, BP 906, Antananarivo 101, Madagascar
| | - Hélène Sénéchal
- Armand Trousseau Children's Hospital, Biochemistry Department, Allergy & Environment, 26 avenue du Dr Arnold Netter, 75571 Paris cedex 12, France ; Inserm, 101 rue de Tolbiac, 75013 Paris, France
| | - Ange Andrianarisoa
- Medical University, Medecine and Medical Specialities Department, BP 375, Antananarivo 101, Madagascar
| | | | - Dominique Godfrin
- Laboratory of Scientific Police, 31 Avenue Franklin Roosevelt, 69130, Ecully, France
| | - Gabriel Peltre
- Armand Trousseau Children's Hospital, Biochemistry Department, Allergy & Environment, 26 avenue du Dr Arnold Netter, 75571 Paris cedex 12, France ; CNRS, 75794, Paris cedex 16, France
| | - Pascal Poncet
- Armand Trousseau Children's Hospital, Biochemistry Department, Allergy & Environment, 26 avenue du Dr Arnold Netter, 75571 Paris cedex 12, France ; Pasteur Institute, Infections & Epidemiology Department, 25-28 rue du Dr Roux, 75724, Paris cedex 15, France
| | - Jean-Pierre Sutra
- Armand Trousseau Children's Hospital, Biochemistry Department, Allergy & Environment, 26 avenue du Dr Arnold Netter, 75571 Paris cedex 12, France
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Dey D, Ghosh N, Pandey N, Gupta Bhattacharya S. A Hospital-Based Survey on Food Allergy in the Population of Kolkata, India. Int Arch Allergy Immunol 2014; 164:218-21. [DOI: 10.1159/000365629] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Accepted: 06/27/2014] [Indexed: 11/19/2022] Open
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Gangl K, Niederberger V, Valenta R. Multiple grass mixes as opposed to single grasses for allergen immunotherapy in allergic rhinitis. Clin Exp Allergy 2014; 43:1202-16. [PMID: 24152153 DOI: 10.1111/cea.12128] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2012] [Revised: 03/31/2013] [Accepted: 04/08/2013] [Indexed: 12/22/2022]
Abstract
Grass pollen allergy affects approximately 40% of allergic patients. Subcutaneous allergen immunotherapy (SCIT) is the only allergen-specific and disease-modifying treatment available. Currently available therapeutic vaccines for the treatment of grass pollen allergy are based on natural grass pollen extracts which are either made from pollen of one cross-reactive grass species or from several related grass species. Clinical studies have shown that SCIT performed with timothy grass pollen extract is effective for the treatment of grass pollen allergy. Moreover, it has been demonstrated that recombinant timothy grass pollen allergens contain the majority of relevant epitopes and can be used for SCIT in clinical trials. However, recent in vitro studies have suggested that mixes consisting of allergen extracts from several related grass species may have advantages for SCIT over single allergen extracts. Here, we review current knowledge regarding the disease-relevant allergens in grass pollen allergy, available clinical studies comparing SCIT with allergen extracts from timothy grass or from mixes of several related grass species of the Pooideae subfamily, in vitro cross-reactivity studies performed with natural allergen extracts and recombinant allergens and SCIT studies performed with recombinant timothy grass pollen allergens. In vitro and clinical studies performed with natural allergen extracts reveal no relevant advantages of using multiple grass mixes as opposed to single grass pollen extracts. Several studies analysing the molecular composition of natural allergen extracts and the molecular profile of patients' immune responses after SCIT with allergen extracts indicate that the major limitation for the production of a high quality grass pollen vaccine resides in intrinsic features of natural allergen extracts which can only be overcome with recombinant allergen-based technologies.
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Affiliation(s)
- K Gangl
- Department of Otorhinolaryngology, Medical University of Vienna, Vienna, Austria
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42
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Marth K, Wollmann E, Gallerano D, Ndlovu P, Makupe I, Valenta R, Sibanda E. Persistence of IgE-associated allergy and allergen-specific IgE despite CD4+ T cell loss in AIDS. PLoS One 2014; 9:e97893. [PMID: 24896832 PMCID: PMC4045723 DOI: 10.1371/journal.pone.0097893] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2013] [Accepted: 04/25/2014] [Indexed: 11/23/2022] Open
Abstract
The infection of CD4+ cells by HIV leads to the progressive destruction of CD4+ T lymphocytes and, after a severe reduction of CD4+ cells, to AIDS. The aim of the study was to investigate whether HIV-infected patients with CD4 cell counts <200 cells/µl can suffer from symptoms of IgE-mediated allergy, produce allergen-specific IgE antibody responses and show boosts of allergen-specific IgE production. HIV-infected patients with CD4 counts ≤ 200 cells/µl suffering from AIDS and from IgE-mediated allergy were studied. Allergy was diagnosed according to case history, physical examination, skin prick testing (SPT), and serological analyses including allergen microarrays. HIV infection was confirmed serologically and the disease was staged clinically. The predominant allergic symptoms in the studied patients were acute allergic rhinitis (73%) followed by asthma (27%) due to IgE-mediated mast cell activation whereas no late phase allergic symptoms such as atopic dermatitis, a mainly T cell-mediated skin manifestation, were found in patients suffering from AIDS. According to IgE serology allergies to house dust mites and grass pollen were most common besides IgE sensitizations to various food allergens. Interestingly, pollen allergen-specific IgE antibody levels in the patients with AIDS and in additional ten IgE-sensitized patients with HIV infections and low CD4 counts appeared to be boosted by seasonal allergen exposure and were not associated with CD4 counts. Our results indicate that secondary allergen-specific IgE production and IgE-mediated allergic inflammation do not require a fully functional CD4+ T lymphocyte repertoire.
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Affiliation(s)
- Katharina Marth
- Division of Immunopathology, Department of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
- Christian Doppler Laboratory for Allergy Research, Division of Immunopathology, Department of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Eva Wollmann
- Division of Immunopathology, Department of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Daniela Gallerano
- Division of Immunopathology, Department of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Portia Ndlovu
- Asthma, Allergy and Immune Dysfunction Clinic, Harare, Zimbabwe
| | - Ian Makupe
- Asthma, Allergy and Immune Dysfunction Clinic, Harare, Zimbabwe
| | - Rudolf Valenta
- Division of Immunopathology, Department of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
- Christian Doppler Laboratory for Allergy Research, Division of Immunopathology, Department of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Elopy Sibanda
- Asthma, Allergy and Immune Dysfunction Clinic, Harare, Zimbabwe
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43
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Panzner P, Vachová M, Vítovcová P, Brodská P, Vlas T. A comprehensive analysis of middle-European molecular sensitization profiles to pollen allergens. Int Arch Allergy Immunol 2014; 164:74-82. [PMID: 24903005 DOI: 10.1159/000362760] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2013] [Accepted: 04/09/2014] [Indexed: 11/19/2022] Open
Abstract
Molecular diagnosis of allergy and microarray technology have opened a completely new avenue of insight into sensitization profiles from both the clinical and the epidemiological point of view. We used this innovative tool in the description of sensitization patterns in pollen-sensitized patients in Middle Europe. Immunoglobulin E detection using 112 different allergenic molecules was carried out employing the ImmunoCAP ISAC microarray system. Sera from 826 patients sensitized to at least one pollen-derived molecule were subjected to analysis. The highest observed sensitization rate was 81.0% to grass-specific molecules (the most frequent being Phl p 1; 69.6%). The second most frequent sensitization was 54.8% to Betulaceae-specific molecules (Bet v 1; 54.2%). Together, grasses and Betulaceae components (and their cosensitizations with other components) comprised the vast majority of pollen sensitizations. Unexpectedly frequently observed sensitizations were those to Cupressaceae-specific molecules (14.1%), Oleaceae-specific molecules (10.8%), and the plane tree-derived molecule Pla a 2 (15.5%). The sensitization rates for all other molecules were within the expected range (Art v 1, 13.6%; Pla l 1, 9.6%; Che a 1, 8.4%; Par j 2, 0.9%; Amb a 1, 0.8%, and Sal k 1, 0.5%). Cross-reacting molecule sensitization rates were found to be 12.4% for profilins, 5.0% for polcalcins, and 6.4% for lipid transfer proteins. Molecular diagnosis of allergy gives a more precise and comprehensive insight into pollen sensitization patterns than extract-based testing, allowing a better understanding of the sensitization process and regional differences. The data presented here may help to improve the diagnostic and allergen-specific treatment procedures in the respective region.
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Affiliation(s)
- Petr Panzner
- Department of Immunology and Allergology, Faculty of Medicine and Faculty Hospital in Pilsen, Charles University in Prague, Pilsen, Czech Republic
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44
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Arruda LK, Barbosa MCR, Santos ABR, Moreno AS, Chapman MD, Pomés A. Recombinant allergens for diagnosis of cockroach allergy. Curr Allergy Asthma Rep 2014; 14:428. [PMID: 24563284 DOI: 10.1007/s11882-014-0428-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Molecular cloning of cockroach allergens and their expression as recombinant proteins have allowed a better understanding of the mechanisms of cockroach allergic disease. Recombinant cockroach allergens have been used for skin testing or in vitro methods to measure IgE antibody levels in serum. Early studies evaluating selected U.S. patients revealed that a cocktail of four cockroach allergens, Bla g 1, Bla g 2, Bla g 4, and Bla g 5, would identify 95 % of cockroach allergic patients. More recent studies pointed to an important role of sensitization to tropomyosin among certain populations, and suggested that a cocktail of five allergens Bla g 1 and/or Per a 1, Bla g 2, Bla g 4, Bla g 5, and Bla g 7, and/or Per a 7, would be expected to diagnose 50- 64 % of cockroach-allergic patients worldwide. Variation in IgE reactivity profiles could be in part due to IgE responses to cross-reactive homologous allergens from different origins. The availability of purified natural or recombinant cockroach allergens provides the capacity to improve diagnosis of cockroach allergy and to develop novel forms of immunotherapy for cockroach-allergic patients.
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Affiliation(s)
- L Karla Arruda
- Department of Medicine, Ribeirao Preto Medical School, University of Sao Paulo, Av. Bandeirantes 3900, Ribeirao Preto, SP, 14049-900, Brazil,
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Vrtala S, Huber H, Thomas WR. Recombinant house dust mite allergens. Methods 2014; 66:67-74. [PMID: 23911838 PMCID: PMC4582397 DOI: 10.1016/j.ymeth.2013.07.034] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2012] [Revised: 07/12/2013] [Accepted: 07/15/2013] [Indexed: 01/07/2023] Open
Abstract
House dust mites (HDM) are a globally important source of allergen responsible for the sensitization of more than 50% of allergic patients. Specific immunotherapy with HDM extracts is effective but allergen extracts cannot be fully standardized and severe side-effects can occur during the protracted course of treatment. The introduction of molecular biological techniques into allergy research allowed the indentification of more than 20 groups of HDM allergens. Recombinant HDM allergens can be produced in defined concentrations and consistent quality and allow the development of vaccines for HDM allergy with reduced allergenic activity and retained immunogenicity. The immunotherapy trials in pollen allergic patients with recombinant pollen allergens/hypoallergenic allergen derivatives have shown that this treatment is effective and indicated that recombinant HDM vaccines might improve immunotherapy of HDM allergic patients. Here we report the steps for the development of vaccines for HDM allergy. After selection of the most prevalent HDM species, the panel of allergens to be included into a therapeutic vaccine for HDM allergy needs to be determined. HDM allergens with high IgE-binding frequency and clinical relevance will be modified into hypoallergenic variants and evaluated for their allergenic activity and immunogenicity. Derivatives with reduced allergenic activity but with retained immunogenicity would be good candidates for a HDM vaccine for safe and efficient immunotherapy.
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Affiliation(s)
- Susanne Vrtala
- Division of Immunopathology, Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Hans Huber
- Biomay AG, Lazarettgasse 19. 1090 Vienna, Austria
| | - Wayne R Thomas
- Center for Child Health Research, University of Western Australia, Telethon Institute of Child Health Research, West Perth, Australia.
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46
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Pomés A, Arruda LK. Investigating cockroach allergens: aiming to improve diagnosis and treatment of cockroach allergic patients. Methods 2013; 66:75-85. [PMID: 23916425 DOI: 10.1016/j.ymeth.2013.07.036] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2012] [Revised: 07/24/2013] [Accepted: 07/26/2013] [Indexed: 12/16/2022] Open
Abstract
Cockroach allergy is an important health problem associated with the development of asthma, as a consequence of chronic exposure to low levels of allergens in susceptible individuals. In the last 20 years, progress in understanding the disease has been possible, thanks to the identification and molecular cloning of cockroach allergens and their expression as recombinant proteins. Assays for assessment of environmental allergen exposure have been developed and used to measure Bla g 1 and Bla g 2, as markers of cockroach exposure. IgE antibodies to cockroach extracts and to specific purified allergens have been measured to assess sensitization and analyze association with exposure and disease. With the development of the field of structural biology and the expression of recombinant cockroach allergens, insights into allergen structure, function, epitope mapping and allergen-antibody interactions have provided further understanding of mechanisms of cockroach allergic disease at the molecular level. This information will contribute to develop new approaches to allergen avoidance and to improve diagnosis and therapy of cockroach allergy.
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Affiliation(s)
- Anna Pomés
- Indoor Biotechnologies, Inc., Charlottesville, VA, USA.
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47
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IgE reactivity profiles among house dust mite allergic patients in Bavaria. Eur Arch Otorhinolaryngol 2013; 270:3177-82. [DOI: 10.1007/s00405-013-2516-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Accepted: 04/18/2013] [Indexed: 10/26/2022]
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48
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Barbosa MCR, Santos ABR, Ferriani VPL, Pomés A, Chapman MD, Arruda LK. Efficacy of recombinant allergens for diagnosis of cockroach allergy in patients with asthma and/or rhinitis. Int Arch Allergy Immunol 2013; 161:213-9. [PMID: 23549028 DOI: 10.1159/000346318] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2011] [Accepted: 12/05/2012] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Immunoglobulin E (IgE) reactivity to individual allergens among cockroach-allergic patients has revealed wide variability. The aim of this study was to assess the effectiveness of recombinant cockroach allergens for skin testing, and to determine sensitization profiles among cockroach-allergic patients living in Brazil. METHODS Fifty-seven cockroach-allergic patients with asthma and/or rhinitis were recruited. Skin testing with recombinant (r) allergens from Periplaneta americana (rPer a 1 and rPer a 7) and Blattella germanica (rBla g 2, rBla g 4 and rBla g 5) were performed at 10 μg/ml and 5 μg/ml (rPer a 1). IgE antibodies to rPer a 7 and rPer a 1 were quantitated by ELISA. RESULTS Of 57 patients tested, 3 (5.3%), 24 (42.1%), 4 (7%), 3 (5.3%) and 4 (7%) showed positive reactions to rPer a 1, rPer a 7, rBla g 2, rBla g 4 and rBla g 5, respectively. Twenty-eight patients (49.1%) had positive tests to at least one allergen. In keeping with skin test results, 31/57 patients (54.4%) and 5/55 patients (9%) had detectable IgE to rPer a 7 and rPer a 1, respectively. Levels of IgE to rPer a 7 were higher in patients with positive tests to rPer a 7 than those with negative tests (geometric mean 13.2 and 1.8 IU/ml, p < 0.05). There was good concordance of results of skin tests and measurements of serum IgE to rPer a 7. CONCLUSION IgE reactivity to rPer a 7 (P. americana tropomyosin) was dominant among patients in Brazil. However, 50% of the patients did not present reactivity to any of the recombinant allergens tested.
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Affiliation(s)
- Michelle C R Barbosa
- Department of Medicine, School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
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49
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Herrant M, Loucoubar C, Bassène H, Gonçalves B, Boufkhed S, Diene Sarr F, Fontanet A, Tall A, Baril L, Mercereau-Puijalon O, Mécheri S, Sakuntabhai A, Paul R. Asthma and atopic dermatitis are associated with increased risk of clinical Plasmodium falciparum malaria. BMJ Open 2013; 3:bmjopen-2013-002835. [PMID: 23883878 PMCID: PMC3731724 DOI: 10.1136/bmjopen-2013-002835] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
OBJECTIVES To assess the impact of atopy and allergy on the risk of clinical malaria. DESIGN A clinical and immunological allergy cross-sectional survey in a birth cohort of 175 children from 1 month to 14 years of age followed for up to 15 years in a longitudinal open cohort study of malaria in Senegal. Malaria incidence data were available for 143 of these children (aged 4 months to 14 years of age) for up to 15 years. Mixed-model regression analysis was used to determine the impact of allergy status on malaria incidence, adjusting for age, gender, sickle-cell trait and force of infection. MAIN OUTCOME MEASURES Asthma, allergic rhinoconjunctivitis and atopic dermatitis status, the number of clinical Plasmodium falciparum malaria episodes since birth and associated parasite density. RESULTS 12% of the children were classified as asthmatic and 10% as having atopic dermatitis. These groups had respectively a twofold (OR 2.12 95%; CI 1.46 to 3.08; p=8×10(-5)) and threefold (OR 3.15; 1.56 to 6.33; p=1.3×10(-3)) increase in the risk of clinical P falciparum malaria once older than the age of peak incidence of clinical malaria (3-4 years of age). They also presented with higher P falciparum parasite densities (asthma: mean 105.3 parasites/μL±SE 41.0 vs 51.3±9.7; p=6.2×10(-3). Atopic dermatitis: 135.4±70.7 vs 52.3±11.0; p=0.014). There was no effect of allergy on the number of non-malaria clinical presentations. Individuals with allergic rhinoconjunctivitis did not have an increased risk of clinical malaria nor any difference in parasite densities. CONCLUSIONS These results demonstrate that asthma and atopic dermatitis delay the development of clinical immunity to P falciparum. Despite the encouraging decrease in malaria incidence rates in Africa, a significant concern is the extent to which the increase in allergy will exacerbate the burden of malaria. Given the demonstrated antiparasitic effect of antihistamines, administration to atopic children will likely reduce the burden of clinical malaria in these children, increase the efficacy of first-line treatment antimalarials and alleviate the non-infectious consequences of atopy.
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Affiliation(s)
- Magali Herrant
- Institut Pasteur, Unité de la Génétique Fonctionnelle des Maladies Infectieuses, CNRS URA3012, Paris, France
- Institut Pasteur de Dakar, Unité d'Epidémiologie des Maladies Infectieuses, Dakar, Senegal
| | - Cheikh Loucoubar
- Institut Pasteur, Unité de la Génétique Fonctionnelle des Maladies Infectieuses, CNRS URA3012, Paris, France
- Institut Pasteur de Dakar, Unité d'Epidémiologie des Maladies Infectieuses, Dakar, Senegal
- INSERM, U946, Genetic Variation and Human Diseases Unit,Paris, France
- Université Paris Diderot, Sorbonne Paris Cité, Institut Universitaire d'Hématologie, Paris, France
| | - Hubert Bassène
- Institut de Recherche pour le Développement (IRD), Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes, URMITE CNRS-IRD 198 UMR 6236, Dakar, Sénégal
| | - Bronner Gonçalves
- Institut Pasteur de Dakar, Unité d'Epidémiologie des Maladies Infectieuses, Dakar, Senegal
| | - Sabah Boufkhed
- Institut Pasteur de Dakar, Unité d'Epidémiologie des Maladies Infectieuses, Dakar, Senegal
| | - Fatoumata Diene Sarr
- Institut Pasteur de Dakar, Unité d'Epidémiologie des Maladies Infectieuses, Dakar, Senegal
| | - Arnaud Fontanet
- Institut Pasteur, Unité d'Epidémiologie des Maladies Emergentes, Paris, France
- Conservatoire National des Arts et Métiers, Paris, France
| | - Adama Tall
- Institut Pasteur de Dakar, Unité d'Epidémiologie des Maladies Infectieuses, Dakar, Senegal
| | - Laurence Baril
- Institut Pasteur de Dakar, Unité d'Epidémiologie des Maladies Infectieuses, Dakar, Senegal
| | | | - Salaheddine Mécheri
- Institut Pasteur, Unité de Biologie des Interactions Hôte Parasite, Paris, France
- Centre National de la Recherche Scientifique, Unité de Recherche Associée 2581, Paris, France
| | - Anavaj Sakuntabhai
- Institut Pasteur, Unité de la Génétique Fonctionnelle des Maladies Infectieuses, CNRS URA3012, Paris, France
- Complex Systems Group, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Richard Paul
- Institut Pasteur, Unité de la Génétique Fonctionnelle des Maladies Infectieuses, CNRS URA3012, Paris, France
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Boye JI. Food allergies in developing and emerging economies: need for comprehensive data on prevalence rates. Clin Transl Allergy 2012; 2:25. [PMID: 23256652 PMCID: PMC3551706 DOI: 10.1186/2045-7022-2-25] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2012] [Accepted: 12/11/2012] [Indexed: 01/18/2023] Open
Abstract
Although much is known today about the prevalence of food allergy in the developed world, there are serious knowledge gaps about the prevalence rates of food allergy in developing countries. Food allergy affects up to 6% of children and 4% of adults. Symptoms include urticaria, gastrointestinal distress, failure to thrive, anaphylaxis and even death. There are over 170 foods known to provoke allergic reactions. Of these, the most common foods responsible for inducing 90% of reported allergic reactions are peanuts, milk, eggs, wheat, nuts (e.g., hazelnuts, walnuts, almonds, cashews, pecans, etc.), soybeans, fish, crustaceans and shellfish. Current assumptions are that prevalence rates are lower in developing countries and emerging economies such as China, Brazil and India which raises questions about potential health impacts should the assumptions not be supported by evidence. As the health and social burden of food allergy can be significant, national and international efforts focusing on food security, food safety, food quality and dietary diversity need to pay special attention to the role of food allergy in order to avoid marginalization of sub-populations in the community. More importantly, as the major food sources used in international food aid programs are frequently priority allergens (e.g., peanut, milk, eggs, soybean, fish, wheat), and due to the similarities between food allergy and some malnutrition symptoms, it will be increasingly important to understand and assess the interplay between food allergy and nutrition in order to protect and identify appropriate sources of foods for sensitized sub-populations especially in economically disadvantaged countries and communities.
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Affiliation(s)
- Joyce Irene Boye
- Food Research and Development Centre, Agriculture and Agri-Food Canada, 3600 Casavant Boul West, St Hyacinthe, Quebec J2S 8E3, Canada.
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