BACKGROUND: The availability of allergenic molecules and high-throughput microtechnologies allow the collection of a large number of IgE results at the same time in a single test. This can be carried out applying the test in the routine diagnostic work-up. OBJECTIVE: The aim of this study was to make a cross-sectional evaluation of the raw prevalence of IgE reactivity to allergenic molecules in serum samples from a cohort of Italian patients using an innovative tool. METHODS: The ISAC, a microarray system, has been used for specific IgE detection using 75 different allergenic molecules. Sera were collected from 23,077 unselected consecutive individuals complaining about any allergic disease. RESULTS: Sixteen thousand four hundred and eight of 23,077 patients had IgE to at least one of 75 allergenic molecules. The top-ranked molecules in this cohort were Cup a 1 (42.7%), Der f 2 (38.7%), and Phl p 1 (37.9%), whereas all the other allergens tested scored in a range between 36.8% and 0.04%, including the first food allergen, Pru p 3, ranked 15th (9.79%). Prevalence varied quite markedly depending on the age range considered, and showing a different behaviour in the lifetime sensitization process. Unsupervised two-way hierarchical clustering analysis generated distinctive patterns of reactivity as the result of IgE recognition of either homologous allergens belonging to different biological sources or non-homologous belonging to the same biological source. CONCLUSIONS: Allergen-based microarray is a tool for the detection of IgE-related sensitization to panels of allergens and gives a more precise and comprehensive evaluation for an IgE-based epidemiology. This insight brings data for better understanding of the sensitization process.
BACKGROUND: The availability of allergenic molecules and high-throughput microtechnologies allow the collection of a large number of IgE results at the same time in a single test. This can be carried out applying the test in the routine diagnostic work-up. OBJECTIVE: The aim of this study was to make a cross-sectional evaluation of the raw prevalence of IgE reactivity to allergenic molecules in serum samples from a cohort of Italian patients using an innovative tool. METHODS: The ISAC, a microarray system, has been used for specific IgE detection using 75 different allergenic molecules. Sera were collected from 23,077 unselected consecutive individuals complaining about any allergic disease. RESULTS: Sixteen thousand four hundred and eight of 23,077 patients had IgE to at least one of 75 allergenic molecules. The top-ranked molecules in this cohort were Cup a 1 (42.7%), Der f 2 (38.7%), and Phl p 1 (37.9%), whereas all the other allergens tested scored in a range between 36.8% and 0.04%, including the first food allergen, Pru p 3, ranked 15th (9.79%). Prevalence varied quite markedly depending on the age range considered, and showing a different behaviour in the lifetime sensitization process. Unsupervised two-way hierarchical clustering analysis generated distinctive patterns of reactivity as the result of IgE recognition of either homologous allergens belonging to different biological sources or non-homologous belonging to the same biological source. CONCLUSIONS: Allergen-based microarray is a tool for the detection of IgE-related sensitization to panels of allergens and gives a more precise and comprehensive evaluation for an IgE-based epidemiology. This insight brings data for better understanding of the sensitization process.
Authors: Ignacio J Ansotegui; Giovanni Melioli; Giorgio Walter Canonica; Luis Caraballo; Elisa Villa; Motohiro Ebisawa; Giovanni Passalacqua; Eleonora Savi; Didier Ebo; R Maximiliano Gómez; Olga Luengo Sánchez; John J Oppenheimer; Erika Jensen-Jarolim; David A Fischer; Tari Haahtela; Martti Antila; Jean J Bousquet; Victoria Cardona; Wen Chin Chiang; Pascal M Demoly; Lawrence M DuBuske; Marta Ferrer Puga; Roy Gerth van Wijk; Sandra Nora González Díaz; Alexei Gonzalez-Estrada; Edgardo Jares; Ayse Füsun Kalpaklioğlu; Luciana Kase Tanno; Marek L Kowalski; Dennis K Ledford; Olga Patricia Monge Ortega; Mário Morais Almeida; Oliver Pfaar; Lars K Poulsen; Ruby Pawankar; Harald E Renz; Antonino G Romano; Nelson A Rosário Filho; Lanny Rosenwasser; Mario A Sánchez Borges; Enrico Scala; Gian-Enrico Senna; Juan Carlos Sisul; Mimi L K Tang; Bernard Yu-Hor Thong; Rudolf Valenta; Robert A Wood; Torsten Zuberbier Journal: World Allergy Organ J Date: 2020-02-25 Impact factor: 4.084
Authors: D Zennaro; E Scala; D Pomponi; E Caprini; D Arcelli; E Gambineri; G Russo; A Mari Journal: Clin Exp Immunol Date: 2012-01 Impact factor: 4.330
Authors: Päivi M Salo; Agustin Calatroni; Peter J Gergen; Jane A Hoppin; Michelle L Sever; Renee Jaramillo; Samuel J Arbes; Darryl C Zeldin Journal: J Allergy Clin Immunol Date: 2011-02-12 Impact factor: 10.793
Authors: Päivi M Salo; Samuel J Arbes; Renee Jaramillo; Agustin Calatroni; Charles H Weir; Michelle L Sever; Jane A Hoppin; Kathryn M Rose; Andrew H Liu; Peter J Gergen; Herman E Mitchell; Darryl C Zeldin Journal: J Allergy Clin Immunol Date: 2014-02-09 Impact factor: 10.793