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Garriga-Baraut T, Labrador-Horrillo M, Tena M, Linares CD, Esteso-Hontoria O, Pedemonte C, Basagaña-Torrento M, Miquel S, Padró-Casas C, Campa-Falcon N, Ferré-Ybarz L, Gázquez-Garcia V, Muñoz-Cano R, Viñas M, Farrarons L, Baltasar-Dragó M, Cortés N, Asensio O, Bartra J, Belmonte J, Bobolea I, Raga E, Moncín MSM. A real-life ImmunoCAT study: impact of molecular diagnosis through ImmunoCAP TM ISAC 112 on immunotherapy prescription in pollen-polysensitized patients in Catalonia, Spain. Allergol Immunopathol (Madr) 2024; 52:21-29. [PMID: 38970261 DOI: 10.15586/aei.v52i4.1077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 04/05/2024] [Indexed: 07/08/2024]
Abstract
BACKGROUND Molecular diagnosis in allergology helps to identify multiple allergenic molecules simultaneously. The use of purified and/or recombinant allergens increases the accuracy of individual sensitization profiles in allergic patients. OBJECTIVE To assess the impact of molecular diagnosis through the ImmunoCAPTM ISAC 112 microarray on etiological diagnosis and specific immunotherapy (SIT) prescription. This was compared to the use of conventional diagnoses in pediatric, adolescent, and young adult patients with rhinitis or rhinoconjunctivitis and/or allergic asthma, sensitized to three or more pollen allergens of different botanical species. METHODS A multicenter, prospective, observational study was conducted in patients aged 3-25 years who received care at the Allergology service of 14 hospitals in Catalonia from 2017 to 2020. Allergology diagnosis was established based on the patient's clinical assessment and the results of the skin prick test and specific immunoglobulin E assays. Subsequently, molecular diagnosis was conducted using ImmunoCAPTM ISAC® 112 to recombinant and/or purified allergen components. RESULTS A total of 109 patients were included; 35 (32.1%) were pediatric patients and 74 (67.9%) were adolescents or young adults (mean age: 18 years), with 58.0% being females. A change of 51.0% was observed in SIT prescription following molecular etiological diagnosis by means of a multi-parameter microarray. CONCLUSIONS Molecular diagnosis by means of multi-parameter tests increases the accuracy of etiological diagnosis and helps to define an accurate composition of SIT.
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Affiliation(s)
- Teresa Garriga-Baraut
- Pediatric Allergy Unit, Pediatric Department, Vall d'Hebron University Hospital, Barcelona, Spain;
| | - Moises Labrador-Horrillo
- Pediatric Allergy Unit, Pediatric Department, Vall d'Hebron University Hospital, Barcelona, Spain
| | - Mercé Tena
- Thermo Fisher Scientific, Barcelona, Spain
| | | | | | - Carlos Pedemonte
- Pediatric Allergy Department, Hospital de Nens de Barcelona, Barcelona, Spain
| | | | - Sira Miquel
- Allergy Department, Germans Trias i Pujol Hospital, Badalona, Spain
| | | | - Núria Campa-Falcon
- Pediatric Allergy Unit, Pediatric Medicine Service, Parc Taulí Hospital, Sabadell, Spain
| | | | | | | | - Marta Viñas
- Allergy Department, Terrassa Hospital, Terrrassa, Spain
| | - Lidia Farrarons
- Allergy Department, Fundació Althaia Hospital, Manresa, Spain
| | | | - Núria Cortés
- Pediatric Allergy Department, Mútua de Terrassa Hospital, Terrassa, Spain
| | - Oscar Asensio
- Pediatric Allergy Unit, Pediatric Medicine Service, Parc Taulí Hospital, Sabadell, Spain
| | - Joan Bartra
- Allergy Department, Clínic Hospital, Barcelona, Spain
| | | | - Irina Bobolea
- Allergy Department, Clínic Hospital, Barcelona, Spain
| | - Esperanza Raga
- Allergy Department, Centro Médico Téknon, Barcelona, Spain
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Trouche-Estival B, Vitte J, Martin-Blondel A, Michelet M, Gruzelle V, Didier A, Guilleminault L, Mailhol C, Rivera SM, De Lima Correia A, Taurus C, Blancher A, Goret J, Klingebiel C, Apoil PA. NOVEOS and ImmunoCAP Have Similar Performances for Diagnosing Food Allergies. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2024; 12:1605-1613.e5. [PMID: 38458433 DOI: 10.1016/j.jaip.2024.02.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 02/15/2024] [Accepted: 02/28/2024] [Indexed: 03/10/2024]
Abstract
BACKGROUND The clinical significance of newly available platforms for specific IgE measurement must be evaluated. However, data are lacking for NOVEOS (Hycor), especially for food allergens. OBJECTIVE We compared the technical and clinical performance of two platforms (ImmunoCAP and NOVEOS) to measure specific IgE to 10 food allergens. METHODS Sera from 289 clinically characterized patients were tested for IgE specific for six food allergen extracts (egg white, cow's milk, peanut, hazelnut, fish, and shrimp) and four molecular allergens (Gal d 1, Bos d 8, Ara h 2, and Cor a 14). Specific IgE measurements were carried out using ImmunoCAP and NOVEOS methods. Food allergy diagnoses were established according to international guidelines. RESULTS A strong correlation (ρ > 0.9) was present between the two platforms whereas specific IgE concentrations measured with NOVEOS were consistently lower (mean, -15%) than with ImmunoCAP. NOVEOS and ImmunoCAP provided similar overall odds ratios and relative risks for food allergy diagnosis with both allergen extracts and molecular allergens. When all 10 allergens were considered, NOVEOS provided better receiver operating characteristic curves (P = .04). Finally, we found that the most discordant results were observed with hazelnut and peanut extracts and were related to cross-reactive carbohydrate determinants for these two with ImmunoCAP. CONCLUSIONS Specific IgE determination by either ImmunoCAP or NOVEOS (odds ratios of allergy, 25.1 or 33.0, respectively) is highly informative regarding the risk of allergy in the selected population. The NOVEOS platform presents the advantage of being less affected by unwanted reactivity owing to carbohydrate determinant-specific IgE while requiring a 10-fold lower test sample volume.
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Affiliation(s)
| | - Joana Vitte
- INSERM UMR-S 1250, University of Reims-Champagne Ardenne, Reims, France
| | - Audrey Martin-Blondel
- Pneumologie and Allergologie, Hôpital des Enfants, CHU de Toulouse, Toulouse, France
| | - Marine Michelet
- Pneumologie and Allergologie, Hôpital des Enfants, CHU de Toulouse, Toulouse, France
| | - Vianney Gruzelle
- Pneumologie and Allergologie, Hôpital des Enfants, CHU de Toulouse, Toulouse, France
| | - Alain Didier
- Pneumo-Allergologie, Hôpital Larrey, CHU de Toulouse, Toulouse, France; INSERM INFINITy, U1291, Toulouse, France
| | - Laurent Guilleminault
- Pneumo-Allergologie, Hôpital Larrey, CHU de Toulouse, Toulouse, France; INSERM INFINITy, U1291, Toulouse, France
| | - Claire Mailhol
- Pneumo-Allergologie, Hôpital Larrey, CHU de Toulouse, Toulouse, France
| | | | | | - Camille Taurus
- Institut Fédératif de Biologie, CHU de Toulouse, Toulouse, France
| | - Antoine Blancher
- Institut Fédératif de Biologie, CHU de Toulouse, Toulouse, France
| | - Julien Goret
- Laboratoire d'Immunologie, CHU de Bordeaux, Bordeaux, France
| | | | - Pol André Apoil
- Institut Fédératif de Biologie, CHU de Toulouse, Toulouse, France; INSERM INFINITy, U1291, Toulouse, France.
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Giusti D, Guemari A, Perotin JM, Fontaine JF, Tonye Libyh M, Gatouillat G, Tabary T, Pham BN, Vitte J. Molecular allergology: a clinical laboratory tool for precision diagnosis, stratification and follow-up of allergic patients. Clin Chem Lab Med 2024; 0:cclm-2024-0305. [PMID: 38815141 DOI: 10.1515/cclm-2024-0305] [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: 03/06/2024] [Accepted: 05/15/2024] [Indexed: 06/01/2024]
Abstract
Identification of the molecular culprits of allergic reactions leveraged molecular allergology applications in clinical laboratory medicine. Molecular allergology shifted the focus from complex, heterogeneous allergenic extracts, e.g. pollen, food, or insect venom, towards genetically and immunologically defined proteins available for in vitro diagnosis. Molecular allergology is a precision medicine approach for the diagnosis, stratification, therapeutic management, follow-up and prognostic evaluation of patients within a large range of allergic diseases. Exclusively available for in vitro diagnosis, molecular allergology is nonredundant with any of the current clinical tools for allergy investigation. As an example of a major application, discrimination of genuine sensitization from allergen cross-reactivity at the molecular level allows the proper targeting of the culprit allergen and thus dramatically improves patient management. This review aims at introducing clinical laboratory specialists to molecular allergology, from the biochemical and genetic bases, through immunological concepts, to daily use in the diagnosis and management of allergic diseases.
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Affiliation(s)
- Delphine Giusti
- Immunology Laboratory, Biology and Pathology Department, University Hospital of Reims, Reims, France
- University of Reims Champagne Ardenne, EA7509 IRMAIC, Reims, France
| | - Amir Guemari
- Univ Montpellier, Desbrest Institute of Epidemiology and Public Health (IDESP), INSERM, Montpellier, France
| | - Jeanne-Marie Perotin
- Department of Respiratory Diseases, University Hospital of Reims, Reims, France
- University of Reims Champagne Ardenne, INSERM UMR 1250, Reims, France
| | | | - Marcelle Tonye Libyh
- Immunology Laboratory, Biology and Pathology Department, University Hospital of Reims, Reims, France
| | - Gregory Gatouillat
- Immunology Laboratory, Biology and Pathology Department, University Hospital of Reims, Reims, France
| | - Thierry Tabary
- Immunology Laboratory, Biology and Pathology Department, University Hospital of Reims, Reims, France
| | - Bach-Nga Pham
- Immunology Laboratory, Biology and Pathology Department, University Hospital of Reims, Reims, France
- University of Reims Champagne Ardenne, EA7509 IRMAIC, Reims, France
| | - Joana Vitte
- Immunology Laboratory, Biology and Pathology Department, University Hospital of Reims, Reims, France
- University of Reims Champagne Ardenne, INSERM UMR 1250, Reims, France
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Oztop N, Vitus MV, Faihs V, Kugler C, Biedermann T, Brockow K. Test Panel of Hidden Allergens for "Idiopathic Anaphylaxis" Reveals Wheat Allergy Dependent on Augmentation Factors as Common Final Diagnosis. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2024:S2213-2198(24)00568-3. [PMID: 38821438 DOI: 10.1016/j.jaip.2024.05.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Revised: 05/03/2024] [Accepted: 05/21/2024] [Indexed: 06/02/2024]
Abstract
BACKGROUND Idiopathic anaphylaxis (IA) is an unresolved concern. Hidden allergens may be relevant in IA and in nonsteroidal anti-inflammatory drug hypersensitivity (NSAID-HS). OBJECTIVE To identify hidden elicitors for IA and NSAID-HS by a skin prick test (SPT) (13 allergens) and allergen-specific IgE (sIgE) panel (12 allergens) and to determine the value of each tested allergen. METHODS We retrospectively included all patients from 2018 to 2021 referred with a suspicion of IA or NSAID-HS by history in whom SPT and/or sIgE to allergens of the IA panel were performed. Patient characteristics from patients' records included comorbidities, history and symptoms of anaphylaxis, serum baseline tryptase level, total IgE level, SPT, sIgE, challenge results, and final diagnoses. RESULTS A total of 134 patients (77 female, mean age 39.7 ± 14.6 years) were included. Median serum baseline tryptase and total IgE levels were 4.23 μg/L and 133.5 kU/L, respectively. Allergologic workup with the IA panel resulted in positive SPT and sIgE in 61 (47%) and 66 (60%) patients, respectively. In those, confirmation or exclusion of allergy, mostly by challenge, led to a definitive diagnosis in 61 of 134 patients (46%). Skin prick test was most frequently positive to gluten (22.4%) and sIgE to ω5-gliadin (21.6%), which correlated with the history (r = 0.310, P < .001; and r = 0.407, P < .001, respectively). In 28 of 134 patients (21%) with initially suspected IA or NSAID-HS, challenges confirmed occult food allergy in which wheat allergy dependent on augmentation factors was the most frequent cause of anaphylaxis (19%). CONCLUSIONS Wheat allergy dependent on augmentation factors should be considered in all patients with anaphylaxis of unknown cause or after NSAID intake.
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Affiliation(s)
- Nida Oztop
- Department of Dermatology and Allergy Biederstein, Faculty of Medicine and Health, Munich Technical University, Munich, Germany; Department of Adult Immunology and Allergic Diseases, Başakşehir Çam and Sakura City Hospital, Istanbul, Turkey
| | - Martin Valentin Vitus
- Department of Dermatology and Allergy Biederstein, Faculty of Medicine and Health, Munich Technical University, Munich, Germany
| | - Valentina Faihs
- Department of Dermatology and Allergy Biederstein, Faculty of Medicine and Health, Munich Technical University, Munich, Germany
| | - Claudia Kugler
- Department of Dermatology and Allergy Biederstein, Faculty of Medicine and Health, Munich Technical University, Munich, Germany
| | - Tilo Biedermann
- Department of Dermatology and Allergy Biederstein, Faculty of Medicine and Health, Munich Technical University, Munich, Germany
| | - Knut Brockow
- Department of Dermatology and Allergy Biederstein, Faculty of Medicine and Health, Munich Technical University, Munich, Germany.
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Nösslinger H, Mair E, Oostingh GJ, Ahlgrimm-Siess V, Ringauf A, Lang R. Multiplex Assays in Allergy Diagnosis: Allergy Explorer 2 versus ImmunoCAP ISAC E112i. Diagnostics (Basel) 2024; 14:976. [PMID: 38786274 PMCID: PMC11119049 DOI: 10.3390/diagnostics14100976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 04/29/2024] [Accepted: 05/01/2024] [Indexed: 05/25/2024] Open
Abstract
ImmunoCAP ISAC E112i (ISAC) and Allergy Explorer 2 (ALEX2) detect specific immunoglobulin E (IgE) reactivity. Both multiplex assays contain molecular allergens and ALEX2 additionally includes allergen extracts and inhibitors that block the binding of IgE to cross-reacting carbohydrate determinants (CCDs). This study aimed to compare the performance of ISAC and ALEX2 by determining the IgE reactivity against allergen extracts and/or allergen components and by using qualitative, semiquantitative, and quantitative analyses of all comparable allergen components in sera from 216 participants recruited in South Tyrol/Italy. For extract sensitization in ALEX2, the analysis revealed negative corresponding allergen components in 18.4% and at least one positive corresponding allergen component in 81.6% of all cases. For ISAC, the corresponding results were 23.5% and 76.5% of cases, respectively. The ALEX2 CCD inhibitor eliminated CCD-positive signals detected by ISAC in 88.5% of cases. Based on sensitization values of 0.3-14.9 ISU or kUA/L, there was good agreement between ALEX2 and ISAC, although ALEX2 showed higher values than ISAC. The addition of allergen-extract tests in ALEX2 resulted in the detection of more sensitizations than with corresponding allergen components alone. In the range of <15 ISU or kUA/L, ALEX2 may be more effective in detecting sensitizations.
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Affiliation(s)
- Hannes Nösslinger
- Department of Nutrition and Dietetics, Hospital of Merano (SABES-ASDAA), Lehrkrankenhaus der Paracelsus Medizinischen Privatuniversität, 39012 Merano-Meran, Italy
| | - Ewald Mair
- Registered pediatrician (SABES-ASDAA), 39031 Brunico-Bruneck, Italy;
| | - Gertie J. Oostingh
- Biomedical Sciences, Salzburg University of Applied Sciences, 5431 Puch/Salzburg, Austria;
| | - Verena Ahlgrimm-Siess
- Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, 5020 Salzburg, Austria; (V.A.-S.); (R.L.)
| | - Anna Ringauf
- MacroArray Diagnostics (MADx), 1230 Vienna, Austria;
| | - Roland Lang
- Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, 5020 Salzburg, Austria; (V.A.-S.); (R.L.)
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Foti Randazzese S, Panasiti I, Caminiti L, Catamerò F, Landi M, De Filippo M, Votto M, Olcese R, Favuzza F, Giovannini M, Barberi S. Current state and advances in desensitization for peanut allergy in pediatric age. Pediatr Allergy Immunol 2024; 35:e14127. [PMID: 38646959 DOI: 10.1111/pai.14127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 03/15/2024] [Accepted: 04/01/2024] [Indexed: 04/25/2024]
Abstract
Peanut allergy affects about 1%-3% of the pediatric population in the world, with an important increase in the last decades. Nowadays, international guidelines recommend the early introduction of peanuts in the infant diet, with poor information about the quantity and the frequency of the intake. Allergen immunotherapy may represent the only therapeutic strategy able to modify the natural history of peanut allergy. In particular, oral immunotherapy showed the most promising results in terms of efficacy, but with significant rates of adverse reactions, mostly gastrointestinal. In 2020, the Food and Drug Administration and the European Medicines Agency approved Palforzia®, an oral drug for patients aged 4-17 years. Several studies are ongoing to improve the tolerability of oral immunotherapy and standardize the desensitization protocols. Sublingual immunotherapy permits to offer much lower doses than oral immunotherapy, but fewer adverse events are shown. Subcutaneous immunotherapy is associated with the greatest systemic adverse effects. Epicutaneous immunotherapy, for which Viaskin® patch was approved, has the highest safety profile. Innovative studies are evaluating the use of biological drugs, such as omalizumab or dupilumab, and probiotics, such as Lactobacillus rhamnosus, in monotherapy or associated with oral immunotherapy. Therapy for peanut allergy is constantly evolving, and new perspectives are ongoing to develop.
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Affiliation(s)
- Simone Foti Randazzese
- Pediatric Unit, Department of Human Pathology in Adult and Developmental Age "Gaetano Barresi", University of Messina, Messina, Italy
| | - Ilenia Panasiti
- Pediatric Unit, Department of Human Pathology in Adult and Developmental Age "Gaetano Barresi", University of Messina, Messina, Italy
| | - Lucia Caminiti
- Pediatric Unit, Department of Human Pathology in Adult and Developmental Age "Gaetano Barresi", University of Messina, Messina, Italy
| | - Francesco Catamerò
- Allergy Unit, Meyer Children's Hospital IRCCS, Florence, Italy
- Department of Health Sciences, University of Florence, Florence, Italy
| | - Massimo Landi
- Institute of Biomedicine and Molecular Immunology, Pediatric National Healthcare System, Turin, Italy
| | - Maria De Filippo
- Pediatric Unit, Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy
- Pediatric Clinic, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Martina Votto
- Pediatric Unit, Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy
- Pediatric Clinic, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | | | - Filippo Favuzza
- Pediatric Unit, Hospital Holy Family Fatebenefratelli Company, Erba, Italy
| | - Mattia Giovannini
- Allergy Unit, Meyer Children's Hospital IRCCS, Florence, Italy
- Department of Health Sciences, University of Florence, Florence, Italy
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Benninger MS, Falcetano GA. Molecular Allergology and Component-Resolved Diagnosis in Current Clinical Practice. Otolaryngol Clin North Am 2024; 57:329-342. [PMID: 37951722 DOI: 10.1016/j.otc.2023.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2023]
Abstract
Specific immunoglobulin E immunodiagnostics is becoming a convenient way to identify allergic patients and their specific allergies. These results are comparable to skin testing and may be more accessible for some populations. Each allergen contains thousands of molecules but only a few of these molecules are allergenic to humans. Each allergen has a number of individual components-generally proteins-which have different characteristics that may impact the effects of sensitization. Identification of the specific component allows for differentiation of the true allergies and can help to determine the risk of a significant clinical response.
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Affiliation(s)
- Michael S Benninger
- Department of Otolaryngology-Head and Neck Surgery, Cleveland Clinic Lerner College of Medicine, Head and Neck Institute, The Cleveland Clinic, 9500, Euclid Avenue. A-71, Cleveland, OH 44195, USA.
| | - Gary A Falcetano
- Immuno Diagnostics Division, Thermo Fisher Scientific, 4169 Commercial Avenue, Portage, MI 49002, USA
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Yamamoto R, Ando T, Kitaura J, Narita M, Miura K, Takasato Y, Nagao M, Okumura K, Ogawa H, Ohnishi H, Watanabe T, Ito K, Fujisawa T, Ebisawa M, Ohya Y, Kabasser S, Bublin M, Yasudo H. The utility of macadamia nut legumin Mac i 2 and its conformational epitopes in the diagnosis of macadamia nut allergy. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2024; 12:786-788.e1. [PMID: 37984796 DOI: 10.1016/j.jaip.2023.11.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 10/26/2023] [Accepted: 11/12/2023] [Indexed: 11/22/2023]
Affiliation(s)
- Risa Yamamoto
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Tomoaki Ando
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, Japan.
| | - Jiro Kitaura
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Masami Narita
- Allergy Center, National Center for Child Health and Development, Tokyo, Japan
| | - Katsushi Miura
- Department of Allergy, Miyagi Children's Hospital, Miyagi, Japan
| | - Yoshihiro Takasato
- Allergy and Immunology Center, Aichi Children's Health and Medical Center, Aichi, Japan
| | - Mizuho Nagao
- Allergy Center and Department of Clinical Research, National Hospital Organization Mie National Hospital, Mie, Japan
| | - Ko Okumura
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Hideoki Ogawa
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Hiroaki Ohnishi
- Department of Laboratory Medicine, Kyorin University School of Medicine, Tokyo, Japan
| | - Takashi Watanabe
- Department of Laboratory Medicine, Kyorin University School of Medicine, Tokyo, Japan
| | - Komei Ito
- Allergy and Immunology Center, Aichi Children's Health and Medical Center, Aichi, Japan
| | - Takao Fujisawa
- National Hospital Organization Mie National Hospital, Mie, Japan
| | - Motohiro Ebisawa
- Clinical Research Center for Allergy and Rheumatology, National Hospital Organization Sagamihara National Hospital, Kanagawa, Japan
| | - Yukihiro Ohya
- Allergy Center, National Center for Child Health and Development, Tokyo, Japan
| | - Stefan Kabasser
- Department of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Merima Bublin
- Department of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Hiroki Yasudo
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, Japan; Allergy Center, National Center for Child Health and Development, Tokyo, Japan; Department of Laboratory Medicine, Kyorin University School of Medicine, Tokyo, Japan; Department of Pediatrics, Graduate School of Medicine, Tokyo University, Tokyo, Japan.
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9
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Manzanares B, González R, Serrano P, Navas A, Alonso C, Fernandez L, Jurado A, Moreno-Aguilar C. Back to basics: likelihood ratios for olive and grass pollen specific IgE in seasonal allergic rhinitis. FRONTIERS IN ALLERGY 2023; 4:1241650. [PMID: 37859976 PMCID: PMC10582635 DOI: 10.3389/falgy.2023.1241650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Accepted: 09/18/2023] [Indexed: 10/21/2023] Open
Abstract
Introduction Specific IgE (sIgE) is merely a sensitization marker that cannot be used for allergy diagnosis if there are no associated clinical symptoms. As of 2023, there is still no evidence regarding the quantity of sIgE necessary to confirm or exclude clinical disease. Therefore, this study aimed to calculate cut-offs for sIgE, allowing us to effectively diagnose olive or grass pollen allergy and select allergenic immunotherapy (AIT) candidate patients in a region under high olive and grass allergenic pressure. Methods An observational retrospective study consisting of the review of electronic medical records from 1,172 patients diagnosed with seasonal rhino-conjunctivitis and suspected allergy to olive or grass pollen. Symptoms correlated with sIgE to Poaceae and Oleaceae whole extracts and sIgE to genuine allergenic components were evaluated. Optimal cut-off values were calculated using receiver operating characteristic curves. Relevant clinical symptoms and AIT indications were taken into consideration when determining the clinical allergy diagnosis. Results sIgE to Lolium showed the best area under the curve (AUC) for both diagnosis (0.957) and an indication of AIT (0.872). The optimal cut-off values for grass diagnosis and AIT indication were 1.79 kUA/L and 8.83 kUA/L, respectively. A value of 5.62 kUA/L was associated with a positive likelihood ratio (LR) of 10.08 set for grass allergy. Olea sIgE showed the best AUC for the diagnosis (0.950). The optimal cut-off for diagnosis was 2.41 kUA/L. A value of 6.49 kUA/L was associated with a positive LR of 9.98 to confirm olive pollen allergy. In regard to immunotherapy, Ole e 1 sIgE showed the best AUC (0.860). The optimal cut-off was 14.05 kUA/L. Ole e 1 sIgE value of 4.8 kUA/L was associated with a 0.09 negative LR to exclude olive AIT indication. Conclusions The sIgE cut-offs found in this population under high olive and grass allergenic pressure reduce the gap between sensitization and clinical allergy, providing a new tool for the diagnosis of seasonal allergic rhinitis/asthma and helping to discriminate patients who will benefit from AIT.
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Affiliation(s)
- Bárbara Manzanares
- Maimonides Biomedical Research Institute of Córdoba (IMIBIC), Reina Sofia University Hospital/ University of Córdoba, Córdoba, Spain
- Department of Immunology and Allergy, Reina Sofia University Hospital, Córdoba, Spain
- Postdocs CSYF, Code RH-0060-2020, European Social Fund, Sevilla, Spain
| | - Rafael González
- Maimonides Biomedical Research Institute of Córdoba (IMIBIC), Reina Sofia University Hospital/ University of Córdoba, Córdoba, Spain
- Department of Immunology and Allergy, Reina Sofia University Hospital, Córdoba, Spain
- National Network ARADyAL, Health Institute Carlos III, Madrid, Spain
| | - Pilar Serrano
- Maimonides Biomedical Research Institute of Córdoba (IMIBIC), Reina Sofia University Hospital/ University of Córdoba, Córdoba, Spain
- Department of Immunology and Allergy, Reina Sofia University Hospital, Córdoba, Spain
- National Network ARADyAL, Health Institute Carlos III, Madrid, Spain
| | - Ana Navas
- Maimonides Biomedical Research Institute of Córdoba (IMIBIC), Reina Sofia University Hospital/ University of Córdoba, Córdoba, Spain
- Department of Immunology and Allergy, Reina Sofia University Hospital, Córdoba, Spain
| | - Corona Alonso
- Maimonides Biomedical Research Institute of Córdoba (IMIBIC), Reina Sofia University Hospital/ University of Córdoba, Córdoba, Spain
- Department of Immunology and Allergy, Reina Sofia University Hospital, Córdoba, Spain
| | - Lourdes Fernandez
- Maimonides Biomedical Research Institute of Córdoba (IMIBIC), Reina Sofia University Hospital/ University of Córdoba, Córdoba, Spain
- Department of Immunology and Allergy, Reina Sofia University Hospital, Córdoba, Spain
| | - Aurora Jurado
- Maimonides Biomedical Research Institute of Córdoba (IMIBIC), Reina Sofia University Hospital/ University of Córdoba, Córdoba, Spain
- Department of Immunology and Allergy, Reina Sofia University Hospital, Córdoba, Spain
- National Network ARADyAL, Health Institute Carlos III, Madrid, Spain
| | - Carmen Moreno-Aguilar
- Maimonides Biomedical Research Institute of Córdoba (IMIBIC), Reina Sofia University Hospital/ University of Córdoba, Córdoba, Spain
- Department of Immunology and Allergy, Reina Sofia University Hospital, Córdoba, Spain
- National Network ARADyAL, Health Institute Carlos III, Madrid, Spain
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10
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Yang L, Li W, Qi S, Jiang Q, Huang N, Yang Y, Ma D, Zhang W, Chen H, Zhu R. A Survey of Airborne Fungi and Their Sensitization Profile in Wuhan, China. Int Arch Allergy Immunol 2023; 184:1153-1164. [PMID: 37611554 DOI: 10.1159/000531245] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 05/09/2023] [Indexed: 08/25/2023] Open
Abstract
INTRODUCTION Airborne fungi induce allergic symptoms in 3-10% of the population worldwide. To better prevent and manage fungi-related allergic diseases, it is essential to identify the genus and the distribution profile of airborne fungi. METHODS With this purpose in mind, we carried out a 12-month volumetric sampling study to monitor the airborne fungi and retrospectively analyzed the sensitization profile of four dominant fungi (Cladosporium, Alternaria, Aspergillus, and Penicillium) among respiratory allergies during the same study period in Wuhan, China. RESULTS A total of 29 different fungal genuses were identified, and the peak fungal concentration period was found to be in September and October, followed by May and June. The most prevalent fungi in this area were Cladosporium (36.36%), Ustilago (20.12%), and Alternaria (13.87%). In addition, the skin prick test data from 1,365 respiratory allergies patients showed that 202 (14.80%) of them were sensitized to fungi. The sensitization rates to Cladosporium, Alternaria, Aspergillus, and Penicillium were 11.72%, 4.69%, 1.98%, and 4.76%, respectively. The seasonal fluctuation of Alternaria and Aspergillus correlated with their sensitization rates. Among the fungal sensitized patients, 76 (37.62%) were sensitized to two or more kinds of fungi. The serum-specific IgE tests suggested low to high correlations existed between these fungi; however, these correlations were not found between fungi and other allergens. CONCLUSION Our study provides the distribution profile and reveals the clinical significance of the airborne fungi in Wuhan, which will facilitate the precise management of fungal allergy.
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Affiliation(s)
- Lin Yang
- Department of Allergy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China,
- Institute of Allergy and Clinical Immunology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China,
| | - Wenjing Li
- Department of Allergy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shanshan Qi
- Department of Allergy, Wuhan No. 1 Hospital, Wuhan, China
| | - Qing Jiang
- Department of Allergy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Nan Huang
- Department of Allergy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yaqi Yang
- Department of Allergy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Dongxia Ma
- Department of Allergy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wei Zhang
- Department of Allergy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hao Chen
- Department of Allergy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Institute of Allergy and Clinical Immunology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Rongfei Zhu
- Department of Allergy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Institute of Allergy and Clinical Immunology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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11
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Lis K, Bartuzi Z. Selected Technical Aspects of Molecular Allergy Diagnostics. Curr Issues Mol Biol 2023; 45:5481-5493. [PMID: 37504263 PMCID: PMC10378047 DOI: 10.3390/cimb45070347] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 06/21/2023] [Accepted: 06/28/2023] [Indexed: 07/29/2023] Open
Abstract
Diagnosis of allergic diseases is a complex, multi-stage process. It often requires the use of various diagnostic tools. The in vitro diagnostics (IVD), which includes various laboratory tests, is one of the stages of this process. Standard laboratory tests include the measurement of the serum concentration of specific immunoglobulin E (sIgE) for selected allergens, full allergen extracts and/or single allergen components (molecules). The measurement of IgE sIgE to the allergen components is called molecular allergy diagnosis. During the standard laboratory diagnostic process, various models of immunochemical tests are used, which enable the measurement of sIgE for single allergens (one-parameter tests, singleplex) or IgE specific for many different allergens (multi-parameter tests, multiplex) in one test. Currently, there are many different test kits available, validated for IVD, which differ in the method type and allergen profile. The aim of the manuscript is to present various technical aspects related to modern allergy diagnostics, especially in the area of molecular allergy diagnostics.
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Affiliation(s)
- Kinga Lis
- Department of Allergology, Clinical Immunology and Internal Medicine, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-168 Bydgoszcz, Poland
| | - Zbigniew Bartuzi
- Department of Allergology, Clinical Immunology and Internal Medicine, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-168 Bydgoszcz, Poland
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12
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Garib V, Trifonova D, Freidl R, Linhart B, Schlederer T, Douladiris N, Pampura A, Dolotova D, Lepeshkova T, Gotua M, Varlamov E, Beltyukov E, Naumova V, Taka S, Kiyamova A, Katsamaki S, Karaulov A, Valenta R. Milk Allergen Micro-Array (MAMA) for Refined Detection of Cow's-Milk-Specific IgE Sensitization. Nutrients 2023; 15:nu15102401. [PMID: 37242284 DOI: 10.3390/nu15102401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 05/04/2023] [Accepted: 05/11/2023] [Indexed: 05/28/2023] Open
Abstract
BACKGROUND Immunoglobulin-E(IgE)-mediated hypersensitivity to cow's milk allergens is a frequent cause of severe and life-threatening anaphylactic reactions. Besides case histories and controlled food challenges, the detection of the IgE antibodies specific to cow's milk allergens is important for the diagnosis of cow-milk-specific IgE sensitization. Cow´s milk allergen molecules provide useful information for the refined detection of cow-milk-specific IgE sensitization. METHODS A micro-array based on ImmunoCAP ISAC technology was developed and designated milk allergen micro-array (MAMA), containing a complete panel of purified natural and recombinant cow's milk allergens (caseins, α-lactalbumin, β-lactoglobulin, bovine serum albumin-BSA and lactoferrin), recombinant BSA fragments, and α-casein-, α-lactalbumin- and β-lactoglobulin-derived synthetic peptides. Sera from 80 children with confirmed symptoms related to cow's milk intake (without anaphylaxis: n = 39; anaphylaxis with a Sampson grade of 1-3: n = 21; and anaphylaxis with a Sampson grade of 4-5: n = 20) were studied. The alterations in the specific IgE levels were analyzed in a subgroup of eleven patients, i.e., five who did not and six who did acquire natural tolerance. RESULTS The use of MAMA allowed a component-resolved diagnosis of IgE sensitization in each of the children suffering from cow's-milk-related anaphylaxis according to Sampson grades 1-5 requiring only 20-30 microliters of serum. IgE sensitization to caseins and casein-derived peptides was found in each of the children with Sampson grades of 4-5. Among the grade 1-3 patients, nine patients showed negative reactivity to caseins but showed IgE reactivity to alpha-lactalbumin (n = 7) or beta-lactoglobulin (n = 2). For certain children, an IgE sensitization to cryptic peptide epitopes without detectable allergen-specific IgE was found. Twenty-four children with cow-milk-specific anaphylaxis showed additional IgE sensitizations to BSA, but they were all sensitized to either caseins, alpha-lactalbumin, or beta-lactoglobulin. A total of 17 of the 39 children without anaphylaxis lacked specific IgE reactivity to any of the tested components. The children developing tolerance showed a reduction in allergen and/or peptide-specific IgE levels, whereas those remaining sensitive did not. CONCLUSIONS The use of MAMA allows for the detection, using only a few microliters of serum, of IgE sensitization to multiple cow's milk allergens and allergen-derived peptides in cow-milk-allergic children with cow-milk-related anaphylaxis.
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Affiliation(s)
- Victoria Garib
- Center for Pathophysiology, Infectiology and Immunology, Institute of Pathophysiology and Allergy Research, Medical University of Vienna, 1090 Vienna, Austria
- International Center of Molecular Allergology, Ministry of Innovation Development, Tashkent 100174, Uzbekistan
| | - Daria Trifonova
- Center for Pathophysiology, Infectiology and Immunology, Institute of Pathophysiology and Allergy Research, Medical University of Vienna, 1090 Vienna, Austria
- Laboratory of Immunopathology, Department of Clinical Immunology and Allergy, Sechenov First Moscow State Medical University, 119991 Moscow, Russia
| | - Raphaela Freidl
- Center for Pathophysiology, Infectiology and Immunology, Institute of Pathophysiology and Allergy Research, Medical University of Vienna, 1090 Vienna, Austria
| | - Birgit Linhart
- Center for Pathophysiology, Infectiology and Immunology, Institute of Pathophysiology and Allergy Research, Medical University of Vienna, 1090 Vienna, Austria
| | - Thomas Schlederer
- Center for Pathophysiology, Infectiology and Immunology, Institute of Pathophysiology and Allergy Research, Medical University of Vienna, 1090 Vienna, Austria
| | - Nikolaos Douladiris
- Allergy Department, 2nd Pediatric Clinic, National & Kapodistrian University of Athens, 11527 Athens, Greece
| | - Alexander Pampura
- Department of Allergology and Clinical Immunology, Research and Clinical Institute for Pediatrics Named after Yuri Veltischev at the Pirogov Russian National Research Medical University of the Russian Ministry of Health, 117997 Moscow, Russia
| | - Daria Dolotova
- Department of Bioinformatics, Department of Pediatric Surgery, Pirogov Russian National Research Medical University of the Russian Ministry of Health, 117997 Moscow, Russia
| | - Tatiana Lepeshkova
- Department of Faculty Therapy, Endocrinology, Allergology and Immunology, Ural State Medical University, 620028 Ekaterinburg, Russia
| | - Maia Gotua
- Center of Allergy and Immunology, 123182 Tbilisi, Georgia
| | - Evgeniy Varlamov
- Department of Allergology and Clinical Immunology, Research and Clinical Institute for Pediatrics Named after Yuri Veltischev at the Pirogov Russian National Research Medical University of the Russian Ministry of Health, 117997 Moscow, Russia
| | - Evgeny Beltyukov
- Department of Faculty Therapy, Endocrinology, Allergology and Immunology, Ural State Medical University, 620028 Ekaterinburg, Russia
| | - Veronika Naumova
- Department of Faculty Therapy, Endocrinology, Allergology and Immunology, Ural State Medical University, 620028 Ekaterinburg, Russia
| | - Styliani Taka
- Allergy Department, 2nd Pediatric Clinic, National & Kapodistrian University of Athens, 11527 Athens, Greece
| | - Alina Kiyamova
- International Center of Molecular Allergology, Ministry of Innovation Development, Tashkent 100174, Uzbekistan
| | - Stefani Katsamaki
- International Center of Molecular Allergology, Ministry of Innovation Development, Tashkent 100174, Uzbekistan
| | - Alexander Karaulov
- Laboratory of Immunopathology, Department of Clinical Immunology and Allergy, Sechenov First Moscow State Medical University, 119991 Moscow, Russia
| | - Rudolf Valenta
- Center for Pathophysiology, Infectiology and Immunology, Institute of Pathophysiology and Allergy Research, Medical University of Vienna, 1090 Vienna, Austria
- Laboratory of Immunopathology, Department of Clinical Immunology and Allergy, Sechenov First Moscow State Medical University, 119991 Moscow, Russia
- NRC Institute of Immunology FMBA of Russia, 115478 Moscow, Russia
- Karl Landsteiner University for Health Sciences, 3500 Krems, Austria
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13
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Garriga-Baraut T, Moncín MMSM, Tena M, Labrador-Horrillo M. INMUNOCAT study: The impact of molecular diagnosis on immunotherapy prescription in pollen polysensitized patients from Catalonia. Clin Transl Allergy 2023; 13:e12246. [PMID: 37227418 DOI: 10.1002/clt2.12246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 02/23/2023] [Accepted: 04/08/2023] [Indexed: 05/26/2023] Open
Abstract
BACKGROUND Recognition of specific allergens triggering immune response is key for the appropriate prescription of allergen-specific immunotherapy (SIT). This study aimed at evaluating the impact of using the commercially available microarray ImmunoCAPTM ISAC 112 (Thermo Fisher Scientific) on the etiological diagnosis and SIT prescription compared to the conventional diagnostic methods in patients with allergic rhinitis/rhinoconjunctivitis and/or asthma. METHODS 300 patients with respiratory allergic disease, sensitized to three or more pollen aeroallergens from different species, as assessed by a skin prick test (SPT) and specific IgE assays (sIgE), were included in this multicentric, prospective observational study. SPT and a blood test were performed to all patients. Total serum IgE and sIgE (ImmunoCAPTM) for allergens found positive in the SPT and sIgE allergen components (ImmunoCAPTM ISAC 112) were measured. RESULTS According to SPT results, the most prevalent pollen sensitizers in our population were Olea europaea followed by grass, Platanus acerifolia and Parietaria judaica. The molecular diagnosis (MD) revealed Ole e 1 as the most prevalent pollen sensitizer, followed by Cup a 1, Phl p 1, Cyn d 1, Par j 2, Pla a 1, 2, and 3 and Phl p 5. Immunotherapy prescription changed, due to MD testing, in 51% of the cases, with an increase of prescription of SIT from 39% to 65%. CONCLUSION The identification of the allergen eliciting the respiratory disease is essential for a correct immunotherapy prescription. The advances in allergen characterization using methods, such as the commercial microarray ImmunoCAPTM ISAC 112, can help clinicians to improve SIT prescription.
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Affiliation(s)
| | | | - Mercè Tena
- Thermo Fisher Scientific, Barcelona, Spain
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14
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Morii W, Kasai K, Nakamura T, Hayashi D, Hara M, Naito T, Sonehara K, Fukuie T, Saito-Abe M, Yang L, Yamamoto-Hanada K, Narita M, Maruo K, Okada Y, Noguchi E, Ohya Y. A genome-wide association study for allergen component sensitizations identifies allergen component-specific and allergen protein group-specific associations. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. GLOBAL 2023; 2:100086. [PMID: 37780799 PMCID: PMC10509904 DOI: 10.1016/j.jacig.2023.100086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 10/03/2022] [Accepted: 11/04/2022] [Indexed: 10/03/2023]
Abstract
Background Allergic diseases are some of the most common diseases worldwide. Genome-wide association studies (GWASs) have been conducted to elucidate the genetic factors of allergic diseases. However, no GWASs for allergen component sensitization have been performed. Objective We sought to detect genetic variants associated with differences in immune responsiveness against allergen components. Methods The participants of the present study were recruited from the Tokyo Children's Health, Illness, and Development study, and allergen component-specific IgE level at age 9 years was measured by means of allergen microarray immunoassays. We performed GWASs for allergen component sensitization against each allergen (single allergen component sensitization, number of allergen components analyzed, n = 31), as well as against allergen protein families (allergen protein group sensitization, number of protein groups analyzed, n = 16). Results We performed GWAS on 564 participants of the Tokyo Children's Health, Illness, and Development study and found associations between Amb a 1 sensitization and the immunoglobulin heavy-chain variable gene on chromosome 14 and between Phl p 1 sensitization and the HLA class II region on chromosome 6 (P < 5.0 × 10-8). A GWAS-significant association was also observed between the HLA class II region and profilin sensitization (P < 5.0 × 10-8). Conclusions Our data provide the first demonstration of genetic risk for allergen component sensitization and show that this genetic risk is related to immune response genes including immunoglobulin heavy-chain variable gene and HLA.
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Affiliation(s)
- Wataru Morii
- Department of Medical Genetics, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Koki Kasai
- Department of Medical Genetics, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Takako Nakamura
- Department of Medical Genetics, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Daisuke Hayashi
- Department of Medical Genetics, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Monami Hara
- Department of Medical Genetics, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Tatsuhiko Naito
- Department of Statistical Genetics, Osaka University Graduate School of Medicine, Suita, Japan
- Department of Neurology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Laboratory for Systems Genetics, RIKEN Center for Integrative Medical Sciences, Kanagawa, Japan
| | - Kyuto Sonehara
- Department of Statistical Genetics, Osaka University Graduate School of Medicine, Suita, Japan
- Integrated Frontier Research for Medical Science Division, Institute for Open and Transdisciplinary Research Initiatives, Osaka University, Suita, Japan
| | - Tatsuki Fukuie
- Allergy Center, National Center for Child Health and Development, Tokyo, Japan
| | - Mayako Saito-Abe
- Allergy Center, National Center for Child Health and Development, Tokyo, Japan
| | - Limin Yang
- Allergy Center, National Center for Child Health and Development, Tokyo, Japan
| | | | - Masami Narita
- Allergy Center, National Center for Child Health and Development, Tokyo, Japan
- Department of Pediatrics, School of Medicine, Kyorin University, Tokyo, Japan
| | - Kazushi Maruo
- Department of Biostatistics, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Yukinori Okada
- Department of Statistical Genetics, Osaka University Graduate School of Medicine, Suita, Japan
- Laboratory for Systems Genetics, RIKEN Center for Integrative Medical Sciences, Kanagawa, Japan
- Integrated Frontier Research for Medical Science Division, Institute for Open and Transdisciplinary Research Initiatives, Osaka University, Suita, Japan
- Laboratory of Statistical Immunology, Immunology Frontier Research Center (WPI-IFReC), Osaka University, Suita, Japan
- Department of Genome Informatics, Graduate School of Medicine, the University of Tokyo, Japan
| | - Emiko Noguchi
- Department of Medical Genetics, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Yukihiro Ohya
- Allergy Center, National Center for Child Health and Development, Tokyo, Japan
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15
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Wise SK, Damask C, Roland LT, Ebert C, Levy JM, Lin S, Luong A, Rodriguez K, Sedaghat AR, Toskala E, Villwock J, Abdullah B, Akdis C, Alt JA, Ansotegui IJ, Azar A, Baroody F, Benninger MS, Bernstein J, Brook C, Campbell R, Casale T, Chaaban MR, Chew FT, Chambliss J, Cianferoni A, Custovic A, Davis EM, DelGaudio JM, Ellis AK, Flanagan C, Fokkens WJ, Franzese C, Greenhawt M, Gill A, Halderman A, Hohlfeld JM, Incorvaia C, Joe SA, Joshi S, Kuruvilla ME, Kim J, Klein AM, Krouse HJ, Kuan EC, Lang D, Larenas-Linnemann D, Laury AM, Lechner M, Lee SE, Lee VS, Loftus P, Marcus S, Marzouk H, Mattos J, McCoul E, Melen E, Mims JW, Mullol J, Nayak JV, Oppenheimer J, Orlandi RR, Phillips K, Platt M, Ramanathan M, Raymond M, Rhee CS, Reitsma S, Ryan M, Sastre J, Schlosser RJ, Schuman TA, Shaker MS, Sheikh A, Smith KA, Soyka MB, Takashima M, Tang M, Tantilipikorn P, Taw MB, Tversky J, Tyler MA, Veling MC, Wallace D, Wang DY, White A, Zhang L. International consensus statement on allergy and rhinology: Allergic rhinitis - 2023. Int Forum Allergy Rhinol 2023; 13:293-859. [PMID: 36878860 DOI: 10.1002/alr.23090] [Citation(s) in RCA: 79] [Impact Index Per Article: 79.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 11/11/2022] [Accepted: 09/13/2022] [Indexed: 03/08/2023]
Abstract
BACKGROUND In the 5 years that have passed since the publication of the 2018 International Consensus Statement on Allergy and Rhinology: Allergic Rhinitis (ICAR-Allergic Rhinitis 2018), the literature has expanded substantially. The ICAR-Allergic Rhinitis 2023 update presents 144 individual topics on allergic rhinitis (AR), expanded by over 40 topics from the 2018 document. Originally presented topics from 2018 have also been reviewed and updated. The executive summary highlights key evidence-based findings and recommendation from the full document. METHODS ICAR-Allergic Rhinitis 2023 employed established evidence-based review with recommendation (EBRR) methodology to individually evaluate each topic. Stepwise iterative peer review and consensus was performed for each topic. The final document was then collated and includes the results of this work. RESULTS ICAR-Allergic Rhinitis 2023 includes 10 major content areas and 144 individual topics related to AR. For a substantial proportion of topics included, an aggregate grade of evidence is presented, which is determined by collating the levels of evidence for each available study identified in the literature. For topics in which a diagnostic or therapeutic intervention is considered, a recommendation summary is presented, which considers the aggregate grade of evidence, benefit, harm, and cost. CONCLUSION The ICAR-Allergic Rhinitis 2023 update provides a comprehensive evaluation of AR and the currently available evidence. It is this evidence that contributes to our current knowledge base and recommendations for patient evaluation and treatment.
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Affiliation(s)
- Sarah K Wise
- Otolaryngology-HNS, Emory University, Atlanta, Georgia, USA
| | - Cecelia Damask
- Otolaryngology-HNS, Private Practice, University of Central Florida, Lake Mary, Florida, USA
| | - Lauren T Roland
- Otolaryngology-HNS, Washington University, St. Louis, Missouri, USA
| | - Charles Ebert
- Otolaryngology-HNS, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Joshua M Levy
- Otolaryngology-HNS, Emory University, Atlanta, Georgia, USA
| | - Sandra Lin
- Otolaryngology-HNS, University of Wisconsin, Madison, Wisconsin, USA
| | - Amber Luong
- Otolaryngology-HNS, McGovern Medical School of the University of Texas, Houston, Texas, USA
| | - Kenneth Rodriguez
- Otolaryngology-HNS, University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA
| | - Ahmad R Sedaghat
- Otolaryngology-HNS, University of Cincinnati, Cincinnati, Ohio, USA
| | - Elina Toskala
- Otolaryngology-HNS, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | | | - Baharudin Abdullah
- Otolaryngology-HNS, Universiti Sains Malaysia, Kubang, Kerian, Kelantan, Malaysia
| | - Cezmi Akdis
- Immunology, Infectious Diseases, Swiss Institute of Allergy and Asthma Research, Davos, Switzerland
| | - Jeremiah A Alt
- Otolaryngology-HNS, University of Utah, Salt Lake City, Utah, USA
| | | | - Antoine Azar
- Allergy/Immunology, Johns Hopkins University, Baltimore, Maryland, USA
| | - Fuad Baroody
- Otolaryngology-HNS, University of Chicago, Chicago, Illinois, USA
| | | | | | - Christopher Brook
- Otolaryngology-HNS, Harvard University, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
| | - Raewyn Campbell
- Otolaryngology-HNS, Macquarie University, Sydney, NSW, Australia
| | - Thomas Casale
- Allergy/Immunology, University of South Florida College of Medicine, Tampa, Florida, USA
| | - Mohamad R Chaaban
- Otolaryngology-HNS, Cleveland Clinic, Case Western Reserve University, Cleveland, Ohio, USA
| | - Fook Tim Chew
- Allergy/Immunology, Genetics, National University of Singapore, Singapore, Singapore
| | - Jeffrey Chambliss
- Allergy/Immunology, University of Texas Southwestern, Dallas, Texas, USA
| | - Antonella Cianferoni
- Allergy/Immunology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | | | | | | | - Anne K Ellis
- Allergy/Immunology, Queens University, Kingston, ON, Canada
| | | | - Wytske J Fokkens
- Otorhinolaryngology, Amsterdam University Medical Centres, Amsterdam, Netherlands
| | | | - Matthew Greenhawt
- Allergy/Immunology, Pediatrics, University of Colorado, Children's Hospital Colorado, Aurora, Colorado, USA
| | - Amarbir Gill
- Otolaryngology-HNS, University of Michigan, Ann Arbor, Michigan, USA
| | - Ashleigh Halderman
- Otolaryngology-HNS, University of Texas Southwestern, Dallas, Texas, USA
| | - Jens M Hohlfeld
- Respiratory Medicine, Fraunhofer Institute for Toxicology and Experimental Medicine ITEM, Hannover Medical School, German Center for Lung Research, Hannover, Germany
| | | | - Stephanie A Joe
- Otolaryngology-HNS, University of Illinois Chicago, Chicago, Illinois, USA
| | - Shyam Joshi
- Allergy/Immunology, Oregon Health and Science University, Portland, Oregon, USA
| | | | - Jean Kim
- Otolaryngology-HNS, Johns Hopkins University, Baltimore, Maryland, USA
| | - Adam M Klein
- Otolaryngology-HNS, Emory University, Atlanta, Georgia, USA
| | - Helene J Krouse
- Otorhinolaryngology Nursing, University of Texas Rio Grande Valley, Edinburg, Texas, USA
| | - Edward C Kuan
- Otolaryngology-HNS, University of California Irvine, Orange, California, USA
| | - David Lang
- Allergy/Immunology, Cleveland Clinic, Cleveland, Ohio, USA
| | | | | | - Matt Lechner
- Otolaryngology-HNS, University College London, Barts Health NHS Trust, London, UK
| | - Stella E Lee
- Otolaryngology-HNS, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Victoria S Lee
- Otolaryngology-HNS, University of Illinois Chicago, Chicago, Illinois, USA
| | - Patricia Loftus
- Otolaryngology-HNS, University of California San Francisco, San Francisco, California, USA
| | - Sonya Marcus
- Otolaryngology-HNS, Stony Brook University, Stony Brook, New York, USA
| | - Haidy Marzouk
- Otolaryngology-HNS, State University of New York Upstate, Syracuse, New York, USA
| | - Jose Mattos
- Otolaryngology-HNS, University of Virginia, Charlottesville, Virginia, USA
| | - Edward McCoul
- Otolaryngology-HNS, Ochsner Clinic, New Orleans, Louisiana, USA
| | - Erik Melen
- Pediatric Allergy, Karolinska Institutet, Stockholm, Sweden
| | - James W Mims
- Otolaryngology-HNS, Wake Forest University, Winston Salem, North Carolina, USA
| | - Joaquim Mullol
- Otorhinolaryngology, Hospital Clinic Barcelona, Barcelona, Spain
| | - Jayakar V Nayak
- Otolaryngology-HNS, Stanford University, Palo Alto, California, USA
| | - John Oppenheimer
- Allergy/Immunology, Rutgers, State University of New Jersey, Newark, New Jersey, USA
| | | | - Katie Phillips
- Otolaryngology-HNS, University of Cincinnati, Cincinnati, Ohio, USA
| | - Michael Platt
- Otolaryngology-HNS, Boston University, Boston, Massachusetts, USA
| | | | | | - Chae-Seo Rhee
- Rhinology/Allergy, Seoul National University Hospital and College of Medicine, Seoul, Korea
| | - Sietze Reitsma
- Otolaryngology-HNS, University of Amsterdam, Amsterdam, Netherlands
| | - Matthew Ryan
- Otolaryngology-HNS, University of Texas Southwestern, Dallas, Texas, USA
| | - Joaquin Sastre
- Allergy, Fundacion Jiminez Diaz, University Autonoma de Madrid, Madrid, Spain
| | - Rodney J Schlosser
- Otolaryngology-HNS, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Theodore A Schuman
- Otolaryngology-HNS, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Marcus S Shaker
- Allergy/Immunology, Dartmouth Geisel School of Medicine, Lebanon, New Hampshire, USA
| | - Aziz Sheikh
- Primary Care, University of Edinburgh, Edinburgh, Scotland
| | - Kristine A Smith
- Otolaryngology-HNS, University of Utah, Salt Lake City, Utah, USA
| | - Michael B Soyka
- Otolaryngology-HNS, University of Zurich, University Hospital of Zurich, Zurich, Switzerland
| | - Masayoshi Takashima
- Otolaryngology-HNS, Houston Methodist Academic Institute, Houston, Texas, USA
| | - Monica Tang
- Allergy/Immunology, University of California San Francisco, San Francisco, California, USA
| | | | - Malcolm B Taw
- Integrative East-West Medicine, University of California Los Angeles, Westlake Village, California, USA
| | - Jody Tversky
- Allergy/Immunology, Johns Hopkins University, Baltimore, Maryland, USA
| | - Matthew A Tyler
- Otolaryngology-HNS, University of Minnesota, Minneapolis, Minnesota, USA
| | - Maria C Veling
- Otolaryngology-HNS, University of Texas Southwestern, Dallas, Texas, USA
| | - Dana Wallace
- Allergy/Immunology, Nova Southeastern University, Ft. Lauderdale, Florida, USA
| | - De Yun Wang
- Otolaryngology-HNS, National University of Singapore, Singapore, Singapore
| | - Andrew White
- Allergy/Immunology, Scripps Clinic, San Diego, California, USA
| | - Luo Zhang
- Otolaryngology-HNS, Beijing Tongren Hospital, Beijing, China
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16
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Lecolant S, Khelifi D, Neukirch C, Taillé C, Chabane H, Giboury Lafarge S, Sève E, Pham Thi N, Epstein M, Chollet Martin S, Nicaise Roland P. Comparaison des performances diagnostiques de deux biopuces IgE : ISAC® et ALEX2®. REVUE FRANÇAISE D'ALLERGOLOGIE 2023. [DOI: 10.1016/j.reval.2023.103289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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17
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Juste-Dolz A, Fernández E, Puchades R, Avella-Oliver M, Maquieira Á. Patterned Biolayers of Protein Antigens for Label-Free Biosensing in Cow Milk Allergy. BIOSENSORS 2023; 13:214. [PMID: 36831980 PMCID: PMC9953870 DOI: 10.3390/bios13020214] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 01/29/2023] [Accepted: 01/30/2023] [Indexed: 06/18/2023]
Abstract
This paper focuses on creating one-dimensional diffractive grooved structures of antigen proteins on glass substrates for the label-free detection of antibodies to dairy allergens. In particular, the fabrication of protein structures is carried out by combining microcontact printing with physisorption, imines coupling, and thiol-ene click chemistry. The work first sets up these patterning methods and discusses and compares the main aspects involved in them (structure, biolayer thickness, functionality, stability). Homogeneous periodic submicron structures of proteins are created and characterized by diffractive measurements, AFM, FESEM, and fluorescence scanning. Then, this patterning method is applied to proteins involved in cow milk allergy, and the resulting structures are implemented as optical transducers to sense specific immunoglobulins G. In particular, gratings of bovine serum albumin, casein, and β-lactoglobulin are created and assessed, reaching limits of detection in the range of 30-45 ng·mL-1 of unlabeled antibodies by diffractive biosensing.
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Affiliation(s)
- Augusto Juste-Dolz
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València, Universitat de València, 46022 Valencia, Spain
| | - Estrella Fernández
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València, Universitat de València, 46022 Valencia, Spain
| | - Rosa Puchades
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València, Universitat de València, 46022 Valencia, Spain
- Departamento de Química, Universitat Politècnica de València, 46022 Valencia, Spain
| | - Miquel Avella-Oliver
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València, Universitat de València, 46022 Valencia, Spain
- Departamento de Química, Universitat Politècnica de València, 46022 Valencia, Spain
| | - Ángel Maquieira
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València, Universitat de València, 46022 Valencia, Spain
- Departamento de Química, Universitat Politècnica de València, 46022 Valencia, Spain
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Vlastos IM, Kalentakis Z, Doulaptsi M, Karatzanis A, Prokopakis EP. Multimorbidities in Allergic Rhinitis-Current Evidence from Epidemiological Studies, Treatment Trials, and Molecular Data. Curr Allergy Asthma Rep 2023; 23:133-140. [PMID: 36692819 DOI: 10.1007/s11882-022-01063-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/06/2022] [Indexed: 01/25/2023]
Abstract
PURPOSE OF REVIEW Given that allergic rhinitis (AR) commonly coexists with other diseases, the present narrative review attempts a brief presentation of current theories on multimorbidities in relation to phenotypes, genotypes, age, and treatment responses with the term "multimorbidities" indicating the uncertainty regarding the primary defect, organ, or pathophysiologic mechanism involved. RECENT FINDINGS Though age-related manifestations allow for the generation of several hypotheses on AR's specific mechanisms, the various theories regarding the initiation or the aggravation of atopic disorders have yet to be proved. Multimorbid AR seems to have a different genetic basis from "stand-alone" AR as well a more severe phenotype. Most studies on the treatment of AR and its multimorbidities focus on allergen immunotherapy, which improves the atopic symptoms and may play a preventive role in the onset of new allergen sensitizations. The use of biological factors may also have a beneficial effect, even though it has currently been approved only for some comorbidities of AR, such as asthma. Employing the use of phenotypes and genotypes concerning multimorbidity broadens current knowledge, but further research is needed to develop diagnostic, stratificational, and predictive algorithms for single and multimorbid allergic diseases (Fig. 1). The real-time data obtained by mobile apps and the new insights on the pathophysiology of AR and its comorbidities will permit both timed preventive measures and better individualized and effective antiallergic treatment. Fig. 1 Current concepts and future trends in diagnosis and management of multimorbid allergic rhinitis.
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Affiliation(s)
- Ioannis M Vlastos
- Department of Otorhinolaryngology, Evangelismos Hospital, Ipsilantou 45-47, Athens, 106 76, Greece.
| | | | - Maria Doulaptsi
- Department of Otorhinolaryngology-Head and Neck Surgery, University of Crete School of Medicine, Heraklion, Greece
| | - Alexander Karatzanis
- Department of Otorhinolaryngology-Head and Neck Surgery, University of Crete School of Medicine, Heraklion, Greece
| | - Emmanuel P Prokopakis
- Department of Otorhinolaryngology-Head and Neck Surgery, University of Crete School of Medicine, Heraklion, Greece
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Roger A, Lazo C, Arias N, Quirant B, Albert N, Gómez M, Schayman W. Using Component-Resolved Diagnosis to Characterize the Sensitization to Specific Cat and Dog Allergens in Patients with Allergic Respiratory Diseases in Catalonia, Spain. Int Arch Allergy Immunol 2023; 184:440-446. [PMID: 36657403 PMCID: PMC10906471 DOI: 10.1159/000528643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 11/21/2022] [Indexed: 01/20/2023] Open
Abstract
INTRODUCTION Sensitization to cat and dog allergens is common in patients with allergic respiratory diseases. The study objective was to determine the prevalence of immunoglobulin E (IgE) sensitization to specific cat and dog allergens using component-resolved diagnosis (CRD) in patients with allergic respiratory diseases plus cat and/or dog sensitization. METHODS We included 87 patients aged 8-62 years, diagnosed with allergic asthma and/or rhinitis plus cat and/or dog sensitization, and attended at the allergy section of a tertiary hospital in Badalona (Catalonia, Spain). We used CRD to determine IgE sensitization to specific cat/dog allergens and skin prick tests (SPTs) to determine differences between diagnostic test results. RESULTS Patients were monosensitized to cats (20.7%) or dogs (3.4%) or sensitized to both (75.9%). The highest positive allergen rates were for Fel d 1 (91.7%) and Fel d 4 (41%) in patients sensitized to cat allergens and for Can f 5 (80%) and Can f 1 (70%) in those sensitized to dog allergens. CRD and SPT results differed somewhat: 16.1% and 27.6% of patients CRD positive for cat or dog sensitization, respectively, were SPT negative, and 6.9% SPT positive for dog sensitization were CRD negative. Few statistically significant relationships were found between any allergen components and any respiratory disease characteristic or contact with furry animals. CONCLUSIONS CRD may be used to determine the prevalence of IgE sensitization to specific cat and dog allergens in patients with allergic respiratory diseases plus cat and/or dog sensitization. As SPT may not correctly identify all patients sensitized to cats and dogs, our results support the use of CRD.
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Affiliation(s)
- Albert Roger
- Allergy Section, University Hospital Germans Trias Pujol, Badalona, Spain
| | - Carlota Lazo
- Allergy Section, University Hospital Germans Trias Pujol, Badalona, Spain
| | - Noelia Arias
- Immunology Department, University Hospital Germans Trias Pujol, Badalona, Spain
| | - Bibiana Quirant
- Immunology Department, University Hospital Germans Trias Pujol, Badalona, Spain
| | - Nereida Albert
- Allergy Section, University Hospital Germans Trias Pujol, Badalona, Spain
| | - Mireia Gómez
- Allergy Section, University Hospital Germans Trias Pujol, Badalona, Spain
| | - Waleska Schayman
- Allergy Section, University Hospital Germans Trias Pujol, Badalona, Spain
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Cafarotti A, Giovannini M, Begìn P, Brough HA, Arasi S. Management of IgE-mediated food allergy in the 21st century. Clin Exp Allergy 2023; 53:25-38. [PMID: 36200952 PMCID: PMC10092460 DOI: 10.1111/cea.14241] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 09/15/2022] [Accepted: 09/26/2022] [Indexed: 01/24/2023]
Abstract
The 21st century has seen the propulsion of research in the field of food allergy, which has driven real changes in the clinical approach. Allergen immunotherapy has been recommended for the active management of food allergy. Data have shown promising additional methods of treatment, including biologics. Efforts have been devoted to the risk stratification of food allergy and the standardization of the assessment of food-allergic severity. Alternative routes of administration of epinephrine are under investigation to minimize any mechanical issue and the fear of injections. Evidence-based guidelines have been published by the main international societies in the field of anaphylaxis and food allergy management and new updates are in preparation. In the coming years, treatment options that are currently in pre-clinical or early clinical evaluation will hopefully lead to safe and effective disease-modifying therapies for food allergy in clinical practice. The identification of reliable biomarkers and the standardization of definitions and measurement approaches, alongside a shared decision-making with patients and families, will be key for the development of personalized care and to help minimize the substantial burden of food allergy.
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Affiliation(s)
- Arianna Cafarotti
- Allergy Unit - Area of Translational Research in Pediatric Specialities, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Mattia Giovannini
- Allergy Unit, Department of Pediatrics, Meyer Children's University Hospital, Florence, Italy
| | - Philippe Begìn
- Allergy, Immunology and Rheumatology Division, Department of Pediatrics, CHU Sainte-Justine, Montreal, Quebec, Canada.,Allergy and Clinical Immunology Division, Department of Medicine, Centre Hospitalier de l'Université de Montréal, Montreal, Quebec, Canada
| | - Helen A Brough
- Children's Allergy Service, Evelina Children's Hospital, Guy's and St. Thomas' NHS Foundation Hospital, London, UK.,Paediatric Allergy Group, Department of Women and Children's Health, School of Life Course Sciences, King's College London, London, UK
| | - Stefania Arasi
- Allergy Unit - Area of Translational Research in Pediatric Specialities, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
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Čelakovská J, Vaňková R, Skalská H, Krejsek J, Andrýs C. The role of PR 10 proteins and molecular components of moulds and yeast in atopic dermatitis patients. FOOD AGR IMMUNOL 2022. [DOI: 10.1080/09540105.2022.2130183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Affiliation(s)
- J. Čelakovská
- Department of Dermatology and Venereology, Faculty Hospital and Medical Faculty of Charles University, Hradec Králové, Czech Republic
| | - R. Vaňková
- Department of Clinical Immunology and Allergy, Faculty Hospital and Medical Faculty of Charles University, Hradec Králové, Czech Republic
| | - H. Skalská
- Department of Informatics and Quantitative Methods, University of Hradec Králové, Hradec Králové, Czech Republic
| | - J. Krejsek
- Department of Clinical Immunology and Allergy, Faculty Hospital and Medical Faculty of Charles University, Hradec Králové, Czech Republic
| | - C. Andrýs
- Department of Clinical Immunology and Allergy, Faculty Hospital and Medical Faculty of Charles University, Hradec Králové, Czech Republic
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Riaz F, Pan F, Wei P. Aryl hydrocarbon receptor: The master regulator of immune responses in allergic diseases. Front Immunol 2022; 13:1057555. [PMID: 36601108 PMCID: PMC9806217 DOI: 10.3389/fimmu.2022.1057555] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 12/02/2022] [Indexed: 12/23/2022] Open
Abstract
The aryl hydrocarbon receptor (AhR) is a widely studied ligand-activated cytosolic transcriptional factor that has been associated with the initiation and progression of various diseases, including autoimmune diseases, cancers, metabolic syndromes, and allergies. Generally, AhR responds and binds to environmental toxins/ligands, dietary ligands, and allergens to regulate toxicological, biological, cellular responses. In a canonical signaling manner, activation of AhR is responsible for the increase in cytochrome P450 enzymes which help individuals to degrade and metabolize these environmental toxins and ligands. However, canonical signaling cannot be applied to all the effects mediated by AhR. Recent findings indicate that activation of AhR signaling also interacts with some non-canonical factors like Kruppel-like-factor-6 (KLF6) or estrogen-receptor-alpha (Erα) to affect the expression of downstream genes. Meanwhile, enormous research has been conducted to evaluate the effect of AhR signaling on innate and adaptive immunity. It has been shown that AhR exerts numerous effects on mast cells, B cells, macrophages, antigen-presenting cells (APCs), Th1/Th2 cell balance, Th17, and regulatory T cells, thus, playing a significant role in allergens-induced diseases. This review discussed how AhR mediates immune responses in allergic diseases. Meanwhile, we believe that understanding the role of AhR in immune responses will enhance our knowledge of AhR-mediated immune regulation in allergic diseases. Also, it will help researchers to understand the role of AhR in regulating immune responses in autoimmune diseases, cancers, metabolic syndromes, and infectious diseases.
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Affiliation(s)
- Farooq Riaz
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences (CAS), Shenzhen, China
| | - Fan Pan
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences (CAS), Shenzhen, China,*Correspondence: Ping Wei, ; Fan Pan,
| | - Ping Wei
- Department of Otolaryngology, Children’s Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Chongqing, China,*Correspondence: Ping Wei, ; Fan Pan,
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23
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Ando T, Kitaura J, Maruyama N, Narita M, Miura K, Takasato Y, Nogami K, Nagao M, Okumura K, Ogawa H, Onishi H, Watanabe T, Ito K, Fujisawa T, Ebisawa M, Kawakami T, Matsumoto K, Hasegawa S, Ohya Y, Yasudo H. Sensitization to macadamia 7S globulin amino-terminus with clinical relevance in Japanese children with macadamia nut allergy. Allergol Int 2022; 72:351-353. [PMID: 36470788 DOI: 10.1016/j.alit.2022.11.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 10/19/2022] [Accepted: 10/31/2022] [Indexed: 12/03/2022] Open
Affiliation(s)
- Tomoaki Ando
- Atopy (Allergy) Research Centre, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Jiro Kitaura
- Atopy (Allergy) Research Centre, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Nobuyuki Maruyama
- Laboratory of Food Quality Design and Development, Division of Agronomy and Horticultural Science, Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Masami Narita
- Allergy Centre, National Centre for Child Health and Development, Tokyo, Japan
| | - Katsushi Miura
- Department of Allergy, Miyagi Children's Hospital, Miyagi, Japan
| | - Yoshihiro Takasato
- Department of Pediatrics, Aichi Children's Health and Medical Centre, Aichi, Japan
| | | | - Mizuho Nagao
- Department of Pediatrics, National Mie Hospital, Mie, Japan
| | - Ko Okumura
- Atopy (Allergy) Research Centre, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Hideoki Ogawa
- Atopy (Allergy) Research Centre, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Hiroaki Onishi
- Department of Laboratory Medicine, Kyorin University School of Medicine, Tokyo, Japan
| | - Takashi Watanabe
- Department of Laboratory Medicine, Kyorin University School of Medicine, Tokyo, Japan
| | - Komei Ito
- Department of Pediatrics, Aichi Children's Health and Medical Centre, Aichi, Japan
| | - Takao Fujisawa
- Department of Pediatrics, National Mie Hospital, Mie, Japan
| | - Motohiro Ebisawa
- Clinical Research Centre for Allergy and Rheumatology, National Hospital Organization, Sagamihara National Hospital, Kanagawa, Japan
| | - Toshiaki Kawakami
- Division of Cell Biology, La Jolla Institute for Immunology, La Jolla, CA, USA
| | - Kenji Matsumoto
- Department of Allergy and Clinical Immunology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Shunji Hasegawa
- Department of Pediatrics, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Yukihiro Ohya
- Allergy Centre, National Centre for Child Health and Development, Tokyo, Japan
| | - Hiroki Yasudo
- Atopy (Allergy) Research Centre, Juntendo University Graduate School of Medicine, Tokyo, Japan; Allergy Centre, National Centre for Child Health and Development, Tokyo, Japan; Department of Laboratory Medicine, Kyorin University School of Medicine, Tokyo, Japan; Department of Pediatrics, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan; Department of Pediatrics, Graduate School of Medicine, Tokyo University, Tokyo, Japan.
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王 晓, 普 晓, 陈 力, 郭 淼, 郑 长, 王 洪, 王 学. [Profiles of IgE sensitization to dust mite allergen components in patients with allergic rhinitis and asthma]. LIN CHUANG ER BI YAN HOU TOU JING WAI KE ZA ZHI = JOURNAL OF CLINICAL OTORHINOLARYNGOLOGY, HEAD, AND NECK SURGERY 2022; 36:576-581. [PMID: 35959573 PMCID: PMC10128206 DOI: 10.13201/j.issn.2096-7993.2022.08.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Indexed: 06/15/2023]
Abstract
Objective:To study the differences and clinical significance of dust mite allergen components in allergic rhinitis(AR) and allergic rhinitis with asthma syndrome(ARAS) patients. Methods:The clinical data of 42 AR patients were retrospectively analyzed and patients were divided into AR and ARAS group. The serum sIgE concentrations of house dust mites were detected by ImmunoCAP system. The allergen components of Der p(Der p 1, Der p 2, Der p 7, Der p 10, Der p 21, Der p 23) and Der f(Der f 1, Der f 2) were analyzed by protein microarray method. The concentration differences of dust mite allergen and its components in AR and ARAS groups were analyzed. Results:Thirty-one cases of AR and 11 cases of ARAS were included. The positive rate of Der p and Der f was 100.0% and 97.6%, respectively. The highest sensitization rates of Der p allergen components were as following: Der p 1(73.8%), Der f 1(66.7%), Der f 2(64.3%) and Der p 2(61.9%). The sensitization rates of Der f 1(100.0% vs 54.8%, P=0.006), Der p 2(90.9% vs 51.6%, P=0.021) and Der f 2(100.0% vs 51.6%, P=0.004) in ARAS group were significantly higher than those in AR group. The sIgE concentrations of Der p in AR group were significantly lower than those in ARAS group([7.65±12.15]kUA/L vs[15.20±18.77]kUA/L, P<0.05). The sIgE concentrations of Der p 1([5.39±4.61]kUA/L vs[2.03±2.97]kUA/L, P=0.013), Der p 2([8.82± 13.58]kUA/L vs[2.78±5.80]kUA/L, P=0.001), Der p 23([1.76± 3.88]kUA/L vs[0.28±0.65]kUA/L, P<0.001) was significantly higher in ARAS group than that of AR group. Correlation analysis showed that Der p 1, Der p 2, Der f 1 and Der f 2 had high positive correlation(P<0.01). The dust mite components sensitization showed a multiple-sensitized mode. 66.7% of the 42 patients were positive for two or more components while it was 58.1% of the AR group and 90.9% of the ARAS group. The sensitization rate of 3 or more components in ARAS group was significantly higher than that in AR group(54.6% vs 29.1%, P<0.05). Conclusion:The concentration of dust mites allergens in ARAS group is higher than that in AR group. Der p 1, Der f 1, Der p 2 and Der f 2 are the main allergen components with a higher sensitization rate in ARAS group. The concentrations of Der p 1, Der p 2 and Der p 23 were higher in ARAS group. The ARAS group is prone to multi-sensitzed to allergen components.
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Affiliation(s)
- 晓艳 王
- 首都医科大学附属北京世纪坛医院变态反应科(北京,100038)Department of Allergy, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
- 首都医科大学附属北京世纪坛医院变态反应中心Allergy Center, Beijing Shijitan Hospital, Capital Medical University
| | - 晓瑜 普
- 首都医科大学附属北京世纪坛医院变态反应中心Allergy Center, Beijing Shijitan Hospital, Capital Medical University
- 首都医科大学附属北京世纪坛医院耳鼻咽喉头颈外科Department of Otolaryngology Head and Neck Surgery, Beijing Shijitan Hospital, Capital Medical University
| | - 力嘉 陈
- 首都医科大学附属北京世纪坛医院变态反应科(北京,100038)Department of Allergy, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
- 首都医科大学附属北京世纪坛医院变态反应中心Allergy Center, Beijing Shijitan Hospital, Capital Medical University
| | - 淼颖 郭
- 首都医科大学附属北京世纪坛医院变态反应科(北京,100038)Department of Allergy, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
- 首都医科大学附属北京世纪坛医院变态反应中心Allergy Center, Beijing Shijitan Hospital, Capital Medical University
| | - 长波 郑
- 首都医科大学附属北京世纪坛医院变态反应科(北京,100038)Department of Allergy, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
- 首都医科大学附属北京世纪坛医院变态反应中心Allergy Center, Beijing Shijitan Hospital, Capital Medical University
| | - 洪田 王
- 首都医科大学附属北京世纪坛医院变态反应科(北京,100038)Department of Allergy, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
- 首都医科大学附属北京世纪坛医院变态反应中心Allergy Center, Beijing Shijitan Hospital, Capital Medical University
| | - 学艳 王
- 首都医科大学附属北京世纪坛医院变态反应科(北京,100038)Department of Allergy, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
- 首都医科大学附属北京世纪坛医院变态反应中心Allergy Center, Beijing Shijitan Hospital, Capital Medical University
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Luengo O, Galvan-Blasco P, Cardona V. Molecular diagnosis contribution for personalized medicine. Curr Opin Allergy Clin Immunol 2022; 22:175-180. [PMID: 35174793 DOI: 10.1097/aci.0000000000000822] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
PURPOSE OF REVIEW The purpose of the current review is to highlight the most recent findings in molecular allergy and its applicability in precision medicine for allergic patients. RECENT FINDINGS Molecular allergy provides useful information in areas of respiratory allergy (house dust mites, pet dander and pollen allergy), food allergy (tree nuts, peanuts, fruits and vegetables), hymenoptera venom allergy and others, in order to improve management of patients. Regional differences in sensitization profiles, assay characteristics and interpretation of molecular sensitization in relation to whole extracts and total immunoglobulin E need to be taken into account. Studies of the impact of such strategies are needed. SUMMARY Molecular allergy diagnosis represents a major contribution for personalized medicine. It aids in the assesment of risk prediction, disease severity, genuine/cross-reactive sensitization, and finally to apply precise management strategies.
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Affiliation(s)
- Olga Luengo
- Allergy Section, Internal Medicine Department, Hospital Universitari Vall d'Hebron
- Vall d'Hebron Institut de Recerca (VHIR), Immunomediated Diseases and Innovative Therapies, Barcelona
- ARADyAL Research Network, Instituto de Salud Carlos III (ISCIII), Madrid
- Universitat Autonomade Barcelona (UAB), Medicine Department, Barcelona, Spain
| | - Paula Galvan-Blasco
- Allergy Section, Internal Medicine Department, Hospital Universitari Vall d'Hebron
- Vall d'Hebron Institut de Recerca (VHIR), Immunomediated Diseases and Innovative Therapies, Barcelona
- ARADyAL Research Network, Instituto de Salud Carlos III (ISCIII), Madrid
- Universitat Autonomade Barcelona (UAB), Medicine Department, Barcelona, Spain
| | - Victoria Cardona
- Allergy Section, Internal Medicine Department, Hospital Universitari Vall d'Hebron
- Vall d'Hebron Institut de Recerca (VHIR), Immunomediated Diseases and Innovative Therapies, Barcelona
- ARADyAL Research Network, Instituto de Salud Carlos III (ISCIII), Madrid
- Universitat Autonomade Barcelona (UAB), Medicine Department, Barcelona, Spain
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Xie Q, Xue W. IgE-Mediated food allergy: Current diagnostic modalities and novel biomarkers with robust potential. Crit Rev Food Sci Nutr 2022; 63:10148-10172. [PMID: 35587740 DOI: 10.1080/10408398.2022.2075312] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Food allergy (FA) is a serious public health issue afflicting millions of people globally, with an estimated prevalence ranging from 1-10%. Management of FA is challenging due to overly restrictive diets and the lack of diagnostic approaches with high accuracy and prediction. Although measurement of serum-specific antibodies combined with patient medical history and skin prick test is a useful diagnostic tool, it is still an imprecise predictor of clinical reactivity with a high false-positive rate. The double-blind placebo-controlled food challenge represents the gold standard for FA diagnosis; however, it requires large healthcare and involves the risk of acute onset of allergic reactions. Improvement in our understanding of the molecular mechanism underlying allergic disease pathology, development of omics-based methods, and advances in bioinformatics have boosted the generation of a number of robust diagnostic biomarkers of FA. In this review, we discuss how traditional diagnostic modalities guide appropriate diagnosis and management of FA in clinical practice, as well as uncover the potential of the latest biomarkers for the diagnosis, monitoring, and prediction of FA. We also raise perspectives for precise and targeted medical intervention to fill the gap in the diagnosis of FA.
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Affiliation(s)
- Qiang Xie
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, P.R. China
| | - Wentong Xue
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, P.R. China
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27
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Scadding GK, Smith PK, Blaiss M, Roberts G, Hellings PW, Gevaert P, Mc Donald M, Sih T, Halken S, Zieglmayer PU, Schmid-Grendelmeier P, Valovirta E, Pawankar R, Wahn U. Allergic Rhinitis in Childhood and the New EUFOREA Algorithm. FRONTIERS IN ALLERGY 2022; 2:706589. [PMID: 35387065 PMCID: PMC8974858 DOI: 10.3389/falgy.2021.706589] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 06/11/2021] [Indexed: 12/25/2022] Open
Abstract
Allergic rhinitis in childhood has been often missed, mistreated and misunderstood. It has significant comorbidities, adverse effects upon quality of life and educational performance and can progress to asthma or worsen control of existing asthma. Accurate diagnosis and effective treatment are important. The new EUFOREA algorithm provides a succinct but wide- ranging guide to management at all levels, based on previous guidelines with updated evidence and has been adjusted and approved by experts worldwide.
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Affiliation(s)
- Glenis Kathleen Scadding
- Ear, Nose and Throat Department, University College London Hospitals National Health Service Foundation Trust, London, United Kingdom.,Faculty of Medical Sciences, University College London, London, United Kingdom
| | | | - Michael Blaiss
- Department of Paediatrics, Medical College of Georgia, Augusta University, Augusta, GA, United States
| | - Graham Roberts
- National Institute of Health Research Biomedical Research Centre, Southampton General Hospital, Southampton, United Kingdom.,The David Hide Asthma and Allergy Research Centre, Newport, United Kingdom.,Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Peter William Hellings
- Department of Microbiology and Immunology, Department of Otorhinolaryngology, Katholieke Universiteit Leuven, Leuven, Belgium.,Department of Otorhinolaryngology, Academic Medical Center, Amsterdam, Netherlands
| | - Philippe Gevaert
- Department of Otorhinolaryngology, Ghent University, Ghent, Belgium
| | | | - Tania Sih
- Medical School, University of São Paulo, São Paulo, Brazil
| | - Suzanne Halken
- Paediatric Allergy, University of Southern Denmark, Odense, Denmark
| | - Petra Ursula Zieglmayer
- Karl Landsteiner University of Health Sciences, Krems an der Donau, Austria.,Vienna Challenge Chamber, Vienna, Austria
| | - Peter Schmid-Grendelmeier
- Allergy Unit, Dermatology Department, University Hospital of Zurich, Eidgenössische Technische Hochschule Zürich, Zurich, Switzerland
| | - Erkka Valovirta
- Department of Lung Diseases and Clinical Immunology, University of Turku and Terveystalo Allergy Clinic, Turku, Finland
| | - Ruby Pawankar
- Division of Allergy, Department of Pediatrics, Nippon Medical School, Tokyo, Japan
| | - Ulrich Wahn
- Klinik für Pädiatrie m.S. Pneumologie und Immunologie, Charite-Berlin, Berlin, Germany
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28
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Borres MP, Sato S, Ebisawa M. Recent advances in diagnosing and managing nut allergies with focus on hazelnuts, walnuts, and cashew nuts. World Allergy Organ J 2022; 15:100641. [PMID: 35493774 PMCID: PMC9020091 DOI: 10.1016/j.waojou.2022.100641] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 03/03/2022] [Accepted: 03/04/2022] [Indexed: 11/17/2022] Open
Affiliation(s)
- Magnus P. Borres
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
| | - Sakura Sato
- Department of Allergy, Clinical Research Center for Allergy and Rheumatology, National Hospital Organization Sagamihara National Hospital, Kanagawa, Japan
- Corresponding author. Sakura Sato, M.D., Department of Allergy, Clinical Research Center for Allergy and Rheumatology, National Hospital Organization Sagamihara National Hospital, 18-1, Sakuradai, Minami-ku, Sagamihara, Kanagawa, 252-0392, Japan.
| | - Motohiro Ebisawa
- Department of Allergy, Clinical Research Center for Allergy and Rheumatology, National Hospital Organization Sagamihara National Hospital, Kanagawa, Japan
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Asthma and Allergy: Unravelling a Tangled Relationship with a Focus on New Biomarkers and Treatment. Int J Mol Sci 2022; 23:ijms23073881. [PMID: 35409241 PMCID: PMC8999577 DOI: 10.3390/ijms23073881] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/21/2022] [Accepted: 03/21/2022] [Indexed: 12/19/2022] Open
Abstract
Asthma is a major driver of health care costs across ages. Despite widely disseminated asthma-treatment guidelines and a growing variety of effective therapeutic options, most patients still experience symptoms and/or refractoriness to standard of care treatments. As a result, most patients undergo a further intensification of therapy to optimize symptom control with a subsequent increased risk of side effects. Raising awareness about the relevance of evaluating aeroallergen sensitizations in asthmatic patients is a key step in better informing clinical practice while new molecular tools, such as the component resolved diagnosis, may be of help in refining the relationship between sensitization and therapeutic recommendations. In addition, patient care should benefit from reliable, easy-to-measure and clinically accessible biomarkers that are able to predict outcome and disease monitoring. To attain a personalized asthma management and to guide adequate treatment decisions, it is of paramount importance to expand clinicians' knowledge about the tangled relationship between asthma and allergy from a molecular perspective. Our review explores the relevance of allergen testing along the asthma patient's journey, with a special focus on recurrent wheezing children. Here, we also discuss the unresolved issues regarding currently available biomarkers and summarize the evidence supporting the eosinophil-derived neurotoxin as promising biomarker.
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30
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Fungal Allergen and Mold Allergy Diagnosis: Role and Relevance of Alternaria alternata Alt a 1 Protein Family. J Fungi (Basel) 2022; 8:jof8030277. [PMID: 35330279 PMCID: PMC8954643 DOI: 10.3390/jof8030277] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 03/03/2022] [Accepted: 03/07/2022] [Indexed: 02/04/2023] Open
Abstract
Alternaria is a genus of worldwide fungi found in different habitats such as soil, the atmosphere, plants or indoor environments. Alternaria species are saprobic—largely involved in the decomposition of organic material—but they can also act as animal pathogens, causing disease in humans and animals, developing infections, toxicosis and allergic diseases. A. alternata is considered one of the most important sources of fungal allergens worldwide and it is associated with severe asthma and respiratory status. Among the A. alternata allergens, Alt a 1 is the main sensitizing allergen and its usefulness in diagnosis and immunotherapy has been demonstrated. Alt a 1 seems to define a protein family that can be used to identify related pathogenic fungi in plants and fruits, and to establish taxonomic relationships between the different fungal divisions.
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31
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Food Allergies: Immunosensors and Management. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12052393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Food allergies (FA) are commonly depicted as immune responses. The mechanism of allergic reactions involves immunoglobulin E (IgE) and non-immunoglobulin E (non-IgE)-related responses caused by contact with specific foods. FAs can be fatal, have negative effects and have become the subject of fanaticism in recent years. In terms of food safety, allergic compounds have become a problem. The immune response to allergens is different to that from food intolerance, pharmacological reactions, and poisoning. The most important allergenic foods are soybeans, milk, eggs, groundnuts, shellfishes, tree nuts, cereals and fish, which together are known as the “Big Eight”. This review will introduce and discuss FAs in milk, peanuts, nuts, shellfishes, eggs and wheat and their detections and potential treatments will also be provided. We believe that this review may provide important information regarding food-induced allergies for children who have allergic reactions and help them avoid the allergenic food in the future.
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Panaitescu C, Haidar L, Buzan MR, Grijincu M, Spanu DE, Cojanu C, Laculiceanu A, Bumbacea R, Agache IO. Precision medicine in the allergy clinic: the application of component resolved diagnosis. Expert Rev Clin Immunol 2022; 18:145-162. [PMID: 35078387 DOI: 10.1080/1744666x.2022.2034501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
INTRODUCTION A precise diagnosis is key for the optimal management of allergic diseases and asthma. In vivo or in vitro diagnostic methods that use allergen extracts often fail to identify the molecules eliciting the allergic reactions. AREAS COVERED Component-resolved diagnosis (CRD) has solved most of the limitations of extract-based diagnostic procedures and is currently valuable tool for the precision diagnosis in the allergy clinic, for venom and food allergy, asthma, allergic rhinitis, and atopic dermatitis. Its implementation in daily practice facilitates: a) the distinction between genuine multiple sensitizations and cross-reactive sensitization in polysensitized patients; b) the prediction of a severe, systemic reaction in food or insect venom allergy; c) the optimal selection of allergen immunotherapy based on the patient sensitization profile. This paper describes its main advantages and disadvantages, cost-effectiveness and future perspectives. EXPERT OPINION The diagnostic strategy based on CRD is part of the new concept of precision immunology, which aims to improve the management of allergic diseases.
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Affiliation(s)
- Carmen Panaitescu
- Department of Functional Sciences, Physiology, Center of Immuno-Physiology and Biotechnologies (CIFBIOTEH), "Victor Babeș" University of Medicine and Pharmacy Timișoara, Romania.,Centre for Gene and Cellular Therapies in The Treatment of Cancer - OncoGen, "Pius Brinzeu" Clinical Emergency Hospital, Timisoara, Romania
| | - Laura Haidar
- Department of Functional Sciences, Physiology, Center of Immuno-Physiology and Biotechnologies (CIFBIOTEH), "Victor Babeș" University of Medicine and Pharmacy Timișoara, Romania
| | - Maria Roxana Buzan
- Department of Functional Sciences, Physiology, Center of Immuno-Physiology and Biotechnologies (CIFBIOTEH), "Victor Babeș" University of Medicine and Pharmacy Timișoara, Romania.,Centre for Gene and Cellular Therapies in The Treatment of Cancer - OncoGen, "Pius Brinzeu" Clinical Emergency Hospital, Timisoara, Romania
| | - Manuela Grijincu
- Department of Functional Sciences, Physiology, Center of Immuno-Physiology and Biotechnologies (CIFBIOTEH), "Victor Babeș" University of Medicine and Pharmacy Timișoara, Romania.,Centre for Gene and Cellular Therapies in The Treatment of Cancer - OncoGen, "Pius Brinzeu" Clinical Emergency Hospital, Timisoara, Romania
| | | | - Catalina Cojanu
- Transylvania University Brasov - Faculty of Medicine, Brasov
| | | | - Roxana Bumbacea
- Department of Allergy, "Carol Davila" University of Medicine and Pharmacy Bucharest, Romania
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Santos SP, Lisboa AB, Silva FS, Tiwari S, Azevedo V, Cruz ÁA, Silva ES, Pinheiro CS, Alcantara-Neves NM, Pacheco LG. Rationally designed hypoallergenic mutant variants of the house dust mite allergen Der p 21. Biochim Biophys Acta Gen Subj 2022; 1866:130096. [DOI: 10.1016/j.bbagen.2022.130096] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 12/22/2021] [Accepted: 01/17/2022] [Indexed: 11/29/2022]
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34
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Medicina de precisión en enfermedades alérgicas. REVISTA MÉDICA CLÍNICA LAS CONDES 2022. [DOI: 10.1016/j.rmclc.2021.12.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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35
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Li JD, Gu JQ, Xu YY, Cui L, Li LS, Wang ZX, Yin J, Guan K. Serum IgE profiles in Chinese pollinosis patients with grass pollen sensitisation. World Allergy Organ J 2022; 15:100624. [PMID: 35079319 PMCID: PMC8760510 DOI: 10.1016/j.waojou.2021.100624] [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: 06/30/2021] [Revised: 12/16/2021] [Accepted: 12/20/2021] [Indexed: 11/28/2022] Open
Abstract
Purpose Methods Results Conclusions
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Affiliation(s)
- Jun-Da Li
- Department of Allergy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, China
- Beijing Key Laboratory of Precision Medicine for Diagnosis and Treatment on Allergic Diseases, China
- National Clinical Research for Dermatologic and Immunologic Diseases, China
| | - Jian-Qing Gu
- Department of Allergy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, China
- Beijing Key Laboratory of Precision Medicine for Diagnosis and Treatment on Allergic Diseases, China
- National Clinical Research for Dermatologic and Immunologic Diseases, China
| | - Ying-Yang Xu
- Department of Allergy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, China
- Beijing Key Laboratory of Precision Medicine for Diagnosis and Treatment on Allergic Diseases, China
- National Clinical Research for Dermatologic and Immunologic Diseases, China
| | - Le Cui
- Department of Allergy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, China
- Beijing Key Laboratory of Precision Medicine for Diagnosis and Treatment on Allergic Diseases, China
- National Clinical Research for Dermatologic and Immunologic Diseases, China
| | - Li-Sha Li
- Department of Allergy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, China
- Beijing Key Laboratory of Precision Medicine for Diagnosis and Treatment on Allergic Diseases, China
- National Clinical Research for Dermatologic and Immunologic Diseases, China
| | - Zi-Xi Wang
- Department of Allergy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, China
- Beijing Key Laboratory of Precision Medicine for Diagnosis and Treatment on Allergic Diseases, China
- National Clinical Research for Dermatologic and Immunologic Diseases, China
| | - Jia Yin
- Department of Allergy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, China
- Beijing Key Laboratory of Precision Medicine for Diagnosis and Treatment on Allergic Diseases, China
- National Clinical Research for Dermatologic and Immunologic Diseases, China
- Corresponding author. Department of Allergy, Peking Union Medical College Hospital, #1 Shuaifuyuan, Wangfujing, Beijing, 100730, China.
| | - Kai Guan
- Department of Allergy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, China
- Beijing Key Laboratory of Precision Medicine for Diagnosis and Treatment on Allergic Diseases, China
- National Clinical Research for Dermatologic and Immunologic Diseases, China
- Corresponding author. Department of Allergy, Peking Union Medical College Hospital, #1 Shuaifuyuan, Wangfujing, Beijing, 100730, China.
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36
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Barber D, Diaz‐Perales A, Escribese MM, Kleine‐Tebbe J, Matricardi PM, Ollert M, Santos AF, Sastre J. Molecular allergology and its impact in specific allergy diagnosis and therapy. Allergy 2021; 76:3642-3658. [PMID: 34057744 DOI: 10.1111/all.14969] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/19/2021] [Accepted: 05/25/2021] [Indexed: 02/06/2023]
Abstract
Progressive knowledge of allergenic structures resulted in a broad availability of allergenic molecules for diagnosis. Component-resolved diagnosis allowed a better understanding of patient sensitization patterns, facilitating allergen immunotherapy decisions. In parallel to the discovery of allergenic molecules, there was a progressive development of a regulation framework that affected both in vitro diagnostics and Allergen Immunotherapy products. With a progressive understanding of underlying mechanisms associated to Allergen immunotherapy and an increasing experience of application of molecular diagnosis in daily life, we focus in analyzing the evidences of the value provided by molecular allergology in daily clinical practice, with a focus on Allergen Immunotherapy decisions.
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Affiliation(s)
- Domingo Barber
- Departamento de Ciencias Médicas Básicas Facultad de Medicina IMMA, Universidad San Pablo CEU, CEU Universities Madrid Spain
- ARADyAL‐RD16/0006/0015 RD16/0006/0003 Thematic Network and Cooperative Research Centers ISCIII Madrid Spain
| | - Araceli Diaz‐Perales
- ARADyAL‐RD16/0006/0015 RD16/0006/0003 Thematic Network and Cooperative Research Centers ISCIII Madrid Spain
- Center for Plant Biotechnology and Genomic Universidad Politécnica de Madrid Pozuelo de Alarcon Spain
| | - Maria M. Escribese
- Departamento de Ciencias Médicas Básicas Facultad de Medicina IMMA, Universidad San Pablo CEU, CEU Universities Madrid Spain
- ARADyAL‐RD16/0006/0015 RD16/0006/0003 Thematic Network and Cooperative Research Centers ISCIII Madrid Spain
| | | | - Paolo M. Matricardi
- Department of Pediatric Pneumology and Immunology Charitè Medical University of Berlin Berlin Germany
| | - Markus Ollert
- Department of Infection and Immunity Luxembourg Institute of Health Esch‐sur‐Alzette Luxembourg
- Department of Dermatology and Allergy Centre Odense University Hospital Odense Denmark
| | - 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 UK
- Peter Gorer Department of Immunobiology School of Immunology and Microbial Sciences King's College London London UK
- Asthma UK Centre in Allergic Mechanisms of Asthma London UK
- Children's Allergy Service Guy's and St Thomas' Hospital London UK
| | - Joaquin Sastre
- Fundación Jiménez Diaz AllergyDepartment Universidad Autonomade Madrid, CIBERES, Instituto de Salud Carlos III Madrid Spain
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Olivry T, Pucheu-Haston CM, Mayer U, Bergvall K, Bexley J. Identification of major and minor chicken allergens in dogs. Vet Dermatol 2021; 33:46-e16. [PMID: 34734435 DOI: 10.1111/vde.13029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/11/2021] [Indexed: 12/18/2022]
Abstract
BACKGROUND Allergens targeted by serum-specific immunoglobulin E (sIgE) in dogs clinically allergic to chicken have not been reported. OBJECTIVES To characterise the allergens targeted by sIgE in dogs sensitised and allergic to chicken. ANIMALS Sera from three dogs not sensitised to chicken, from 10 chicken sensitised dogs and from 12 chicken allergic dogs. METHODS AND MATERIALS Enzyme-linked immunosorbent assay (ELISA) and immunoblotting with a commercial chicken extract were utilized. The bands identified on immunoblotting were sequenced by mass spectrometry for allergen characterization. RESULTS Using ELISA, we detected chicken-sIgE above the positive threshold in zero of three (0%) nonsensitised dogs, five of five (100%) chicken-sensitised dogs (a selection criterion), and in seven of 12 (58%) chicken-allergic dogs. Immunoblotting performed with the same extract revealed IgE-bound protein bands in 100% of all chicken-sensitised and -allergic dogs, respectively. To identify the allergens, we excised the corresponding bands on the electrophoretic gel, and submitted them for sequencing by mass spectrometry. We conclusively identified seven major allergens (serum albumin, pyruvate kinase M, enolase 3, creatine kinase M, lactate dehydrogenase A, glyceraldehyde-3-phosphate dehydrogenase and triose-phosphate isomerase) and one minor allergen (troponin C), which are relevant to dogs. CONCLUSIONS AND CLINICAL RELEVANCE We identified herein seven major chicken allergens for dogs, several of which are known to be cross-reactive allergens for humans. Based on their degree of sequence identity, these allergens exhibit the theoretical potential to be cross-reactive between poultry and mammalian meats; six of these allergens already are known to be cross-reactive between chicken and fish species. Future studies should address the clinical relevance and cross-reactivity potential of these chicken allergens in dogs.
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Affiliation(s)
- Thierry Olivry
- Department of Clinical Sciences, College of Veterinary Medicine, NC State University, 1060 William Moore Drive, Raleigh, NC, 27607, USA
| | - Cherie M Pucheu-Haston
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Skip Bertman Drive, Baton Rouge, LA, 70803, USA
| | - Ursula Mayer
- Anicura Kleintierspezialisten, Max-Josef-Metzger Straße 9, Augsburg, 86157, Germany
| | - Kerstin Bergvall
- Faculty of Veterinary Medicine and Animal Husbandry, Swedish University of Agricultural Sciences, Box 7054, Uppsala, 750 07, Sweden
| | - Jennifer Bexley
- Avacta Animal Health, Unit 651, Street 5, Thorp Arch Estate, Wetherby, Yorkshire, LS23 7FZ, UK
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Scala E, Caprini E, Abeni D, Meneguzzi G, Buzzulini F, Cecchi L, Villalta D, Asero R. A qualitative and quantitative comparison of IgE antibody profiles with two multiplex platforms for component-resolved diagnostics in allergic patients. Clin Exp Allergy 2021; 51:1603-1612. [PMID: 34523179 DOI: 10.1111/cea.14016] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 06/03/2021] [Accepted: 09/08/2021] [Indexed: 12/24/2022]
Abstract
BACKGROUND Clinically complex phenotypes require more and more sophisticated and comprehensive diagnostic approaches, able to discriminate genuine sensitizations from cross-reactivity. Interpretative complexity of multiplex diagnostic arrays has somewhat limited their diffusion. This study compares two currently available methods, namely ISAC® test and ALEX2® test. METHODS In total, 140 allergic individuals, with a history of atopic dermatitis, adverse food reactions, allergic rhinitis and/or bronchial asthma were studied by Allergy Explorer-ALEX2® macroarray and ImmunoCAP ISAC112® . Lin's concordance correlation coefficient, intraclass correlation coefficient and Bland-Altman plots were used to verify the agreement between continuous values. Cohen's kappa coefficient (k) was assessed for the molecules available in both tests. The degree of relationship was analysed using Spearman's correlation (quantitative variables) and Pearson's χ2 or Fisher's exact test (categorical variables). RESULTS A substantial agreement (κ = 0.795) was observed between the two methods with 94,3% concordant results when results were dichotomized as negative or positive, but if double-negative results were discarded, the agreement dropped to 71%. Conversely, little or no concordance was observed comparing raw data. Considering the 102 molecules shared by both systems, 28/102 (27%) showed an almost perfect agreement (k > 0.81), and concordance was good (k > 0.61) in a further 32 (31%) cases. A perfect to substantial agreement was observed by comparing species-specific aeroallergens. Heterogeneous results emerged comparing panallergens (co-recognition ranging from 30% for tropomyosin/serum albumins to 70% for PR-10/profilin). The correlation among LTP, profilin and PR-10 assayed with ISAC® was better than ALEX2® , but the latter identified more positive cases due to the wider number of molecules available. The CCD blocker provided by ALEX® test abolishes the carbohydrate determinants signal in 60% of the 33 cases reactive to MUXF3 on the ISAC® test. CONCLUSION Despite the excellent concordance of the species-specific markers, the analysis of the panallergens provided in both methods suggests a better performance of the ISAC® test on those components, while the ALEX2® test, which includes a larger number of allergens, allowing a broader molecular detection.
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Affiliation(s)
- Enrico Scala
- Clinical and Laboratory Molecular Allergy Unit, IDI - IRCCS, Rome, Italy
| | - Elisabetta Caprini
- Clinical and Laboratory Molecular Allergy Unit, IDI - IRCCS, Rome, Italy
| | - Damiano Abeni
- Clinical and Laboratory Molecular Allergy Unit, IDI - IRCCS, Rome, Italy
| | - Giorgia Meneguzzi
- Clinical and Laboratory Molecular Allergy Unit, IDI - IRCCS, Rome, Italy
| | - Francesca Buzzulini
- Immunologia e allergologia, Ospedale S. Maria degli Angeli, Pordenone, Italy
| | - Lorenzo Cecchi
- SOS Allergy and Clinical Immunology, USL Toscana Centro, Prato, Italy
| | - Danilo Villalta
- Immunologia e allergologia, Ospedale S. Maria degli Angeli, Pordenone, Italy
| | - Riccardo Asero
- Ambulatorio di allergologia, Clinica San Carlo, Paderno Dugnano, Italy
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Mokronosova MA, Filimonova OI, Zheltikova TM. New technologies in molecular allergodiagnostics. Klin Lab Diagn 2021; 66:480-484. [PMID: 34388318 DOI: 10.51620/0869-2084-2021-66-8-480-484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The article presents the characteristics of the ALEX2 (MacroArrayDX, Wien, Austria). It is designed for simultaneous detection of IgE total and specific IgE-aB to 120 extracts and 180 molecules by solid-phase enzyme immunoassay. Extracts and allergen molecules combined with nano-particles are sorbed on a solid-phase substrate, forming a macroscopic multiplex matrix - the immune allergy chip. The Institute of Clinical and Laboratory Standards (CLSI) conducted research on the verification and validation of the ALEX2 in relation to the ImmunoCAP macroarray test system (ThermoFisher Scientific, Uppsala, Sweden), which is often used in allergodiagnostics. The results obtained on the two test systems were comparable. One of the most important features of the ALEX2 test system is that unique allergen molecules and allergenic extracts are included in its composition, and a method has been found to inhibit cross-reactive hydrocarbon determinants (CCDs), which cause frequent non-specific binding of IgE-aT. The use of this test system makes it possible to carry out component allergy diagnostics with the determine of the dominant sensitizing factor in cases of mono- and polyvalent sensitization. The test results affect the determination of indications and the effectiveness of ASIT, allow assessing the risk of anaphylaxis and predicting further treatment tactics for the patient.
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40
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Tiew PY, Hou Lim AY, Keir HR, Dicker AJ, Aogáin MM, Pang SL, Boon LT, Hassan TM, Poh ME, Xu H, Ong TH, Koh MS, Abisheganaden JA, Tee A, Chew FT, Chalmers JD, Chotirmall SH. HIGH FREQUENCY OF ALLERGIC BRONCHOPULMONARY ASPERGILLOSIS IN BRONCHIECTASIS-COPD OVERLAP. Chest 2021; 161:40-53. [PMID: 34364870 DOI: 10.1016/j.chest.2021.07.2165] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 07/22/2021] [Accepted: 07/25/2021] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Allergic bronchopulmonary aspergillosis (ABPA) is associated with frequent exacerbations and poor outcomes in chronic respiratory disease but remains underdiagnosed. The role of fungal sensitization in bronchiectasis-COPD overlap (BCO) is unknown. RESEARCH QUESTION What is the occurrence and clinical relevance of Aspergillus sensitization and ABPA in BCO when compared to individuals with COPD or bronchiectasis without overlap? STUDY DESIGN Prospective, observational and cross-sectional. METHODS We prospectively recruited n=280 patients during periods of clinical stability with bronchiectasis (n=183), COPD (n=50) and BCO (n=47) from six hospitals across three countries (Singapore, Malaysia, and Scotland). We assessed sensitization responses (as specific IgE) to a panel of recombinant Aspergillus fumigatus (rAsp f) allergens and the occurrence of ABPA (ABPA) in relation to clinical outcomes. RESULTS Individuals with BCO illustrate an increased frequency and clinical severity of ABPA compared to COPD and bronchiectasis without overlap. BCO-associated ABPA demonstrates more severe disease, higher exacerbation rates and lower lung function when compared to ABPA occurring in the absence of overlap. BCO with a severe bronchiectasis severity index (BSI) (>9) significantly associates with the occurrence of ABPA that is unrelated to underlying COPD severity. CONCLUSIONS BCO demonstrates a high frequency of ABPA that associates with a severe BSI (>9) and poor clinical outcomes. Clinicians should maintain a high index of suspicion for the potential development of ABPA in BCO patients with high BSI.
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Affiliation(s)
- Pei Yee Tiew
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore; Department of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore
| | - Albert Yick Hou Lim
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore; Department of Respiratory and Critical Care Medicine, Tan Tock Seng Hospital, Singapore
| | - Holly R Keir
- Ninewells Hospital and Medical School, University of Dundee, UK
| | - Alison J Dicker
- Ninewells Hospital and Medical School, University of Dundee, UK
| | - Micheál Mac Aogáin
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore
| | - Sze Lei Pang
- Department of Biological Sciences, National University of Singapore
| | - Low Teck Boon
- Department of Respiratory and Critical Care Medicine, Changi General Hospital, Singapore
| | | | - Mau Ern Poh
- Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Huiying Xu
- Department of Respiratory and Critical Care Medicine, Tan Tock Seng Hospital, Singapore
| | - Thun How Ong
- Department of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore
| | - Mariko Siyue Koh
- Department of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore
| | - John Arputhan Abisheganaden
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore; Department of Respiratory and Critical Care Medicine, Tan Tock Seng Hospital, Singapore
| | - Augustine Tee
- Department of Respiratory and Critical Care Medicine, Changi General Hospital, Singapore
| | - Fook Tim Chew
- Department of Biological Sciences, National University of Singapore
| | | | - Sanjay H Chotirmall
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore.
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41
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Parisi CA, Kelly KJ, Ansotegui IJ, Gonzalez-Díaz SN, Bilò MB, Cardona V, Park HS, Braschi MC, Macias-Weinmann A, Piga MA, Acuña-Ortega N, Sánchez-Borges M, Yañez A. Update on latex allergy: New insights into an old problem. World Allergy Organ J 2021; 14:100569. [PMID: 34386153 PMCID: PMC8335653 DOI: 10.1016/j.waojou.2021.100569] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 06/16/2021] [Accepted: 06/28/2021] [Indexed: 12/04/2022] Open
Abstract
Despite the efforts made to mitigate the consequences of this disease, natural rubber latex allergy (NRLA) continues to be a global health problem and is still considered one of the main worries in the working environment in many countries throughout the world. Due to thousands of products containing latex, it is not surprising that the current statistics suggest that prevalence remains high among healthcare workers and susceptible patients. In developed countries, reduction in the prevalence of IgE-mediated allergy to latex proteins from gloves may lead to lax attention by health care personnel. On the other hand, this situation is different in developing countries where there is a lack of epidemiological data associated with a deficit in education and awareness of this issue. The aim of this review is to provide an update of the current knowledge and practical recommendations regarding NRLA by allergologists from different parts of the world with experience in this field.
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Affiliation(s)
- Claudio A.S. Parisi
- Pediatric and Adult Allergy Sections, Hospital Italiano de Buenos Aires, Argentina
| | - Kevin J. Kelly
- University of North Carolina - Chapel Hill, North Carolina, USA
| | | | - Sandra Nora Gonzalez-Díaz
- Regional Center of Allergy and Clinical Immunology, Hospital Universitario “Dr. José Eleuterio González” y Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, Mexico
| | - Maria Beatrice Bilò
- Department of Clinical and Molecular Sciences, Polytechnic University of Marche, Ancona, Italy
- Allergy Unit - Department of Internal Medicine, University Hospital of Ancona, Italy
| | - Victoria Cardona
- Hospital Vall d’Hebron, Servicio de Medicina Interna, Sección de Alergia, Barcelona, Spain
| | - Hae-Sim Park
- Department of Allergy & Clinical Immunology, Ajou University Medical Center, Seoul, South Korea
| | - Maria Chiara Braschi
- Allergy Unit - Department of Internal Medicine, University Hospital of Ancona, Italy
| | - Alejandra Macias-Weinmann
- Regional Center of Allergy and Clinical Immunology, Hospital Universitario “Dr. José Eleuterio González” y Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, Mexico
| | - Mario A. Piga
- Department of Clinical and Molecular Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Natalhie Acuña-Ortega
- Regional Center of Allergy and Clinical Immunology, Hospital Universitario “Dr. José Eleuterio González” y Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, Mexico
| | - Mario Sánchez-Borges
- Allergy and Clinical Immunology, Centro Médico Docente La Trinidad and Clínica El Avila, Caracas, Venezuela
| | - Anahí Yañez
- InAER -Investigaciones en Enfermedades Alérgicas y Respiratorias, Buenos Aires, Argentina
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42
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García-Foncillas J, Argente J, Bujanda L, Cardona V, Casanova B, Fernández-Montes A, Horcajadas JA, Iñiguez A, Ortiz A, Pablos JL, Pérez Gómez MV. Milestones of Precision Medicine: An Innovative, Multidisciplinary Overview. Mol Diagn Ther 2021; 25:563-576. [PMID: 34331269 DOI: 10.1007/s40291-021-00544-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/04/2021] [Indexed: 12/11/2022]
Abstract
Although the concept of precision medicine, in which healthcare is tailored to the molecular and clinical characteristics of each individual, is not new, its implementation in clinical practice has been heterogenous. In some medical specialties, precision medicine has gone from being just a promise to a reality that achieves better patient outcomes. This is a fact if we consider, for example, the great advances made in the genetic diagnosis and subsequent treatment of countless hereditary diseases, such as cystic fibrosis, which have improved the life expectancy of many of the affected children. In the field of oncology, the development of targeted therapies has prolonged the survival of patients with breast, lung, colorectal, melanoma, and hematological malignancies. In other disciplines, clinical milestones are perhaps less well known, but no less important. The current challenge is to expand and generalize the use of technologies that are central to precision medicine, such as massively parallel sequencing, to improve the management (prevention and treatment) of complex conditions such as cardiovascular, kidney, or autoimmune diseases. This process requires investment in specialized expertise, multidisciplinary collaboration, and the nationwide organization of genetic laboratories for diagnosis of specific diseases.
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Affiliation(s)
- Jesús García-Foncillas
- Department of Oncology, Oncohealth Institute, Fundacion Jimenez Diaz University Hospital, Autonomous University, Madrid, Spain. .,Medical Oncology Department, University Hospital Fundación Jiménez Díaz-Universidad Autonoma de Madrid, Madrid, Spain.
| | - Jesús Argente
- Department of Endocrinology, Instituto de Salud Carlos III, IMDEA Institute, Hospital Infantil Universitario Niño Jesús, Spanish PUBERE Registry, CIBER of Obesity and Nutrition (CIBEROBN), Universidad Autónoma de Madrid, Madrid, Spain.,Department of Pediatrics, Instituto de Salud Carlos III, IMDEA Institute, Hospital Infantil Universitario Niño Jesús, Spanish PUBERE Registry, CIBER of Obesity and Nutrition (CIBEROBN), Universidad Autónoma de Madrid, Madrid, Spain
| | - Luis Bujanda
- Department of Gastroenterology, Hospital Donostia/Instituto Biodonostia, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Universidad del País Vasco (UPV/EHU), San Sebastian, Spain
| | - Victoria Cardona
- Allergy Section, Department of Internal Medicine, Hospital Vall d'Hebron, Barcelona, Spain.,ARADyAL Research Network, Barcelona, Spain
| | - Bonaventura Casanova
- Neuroimmunology Unit, La Fe University and Polytechnic Hospital, Valencia, Spain.,Department of Medicine, Faculty of Medicine, University of Valencia, Valencia, Spain
| | - Ana Fernández-Montes
- Medical Oncology, Complejo Hospitalario Universitario de Ourense, Ourense, Spain
| | | | - Andrés Iñiguez
- Department of Cardiology, Hospital Álvaro Cunqueiro-Complejo Hospitalario Universitario, Vigo, Spain
| | - Alberto Ortiz
- Department of Nephrology and Hypertension, IIS-Fundación Jiménez Díaz-UAM, Madrid, Spain
| | - José L Pablos
- Grupo de Enfermedades Inflamatorias y Autoinmunes, Instituto de Investigación Hospital 12 de Octubre, Madrid, Spain.,Servicio de Reumatología, Hospital 12 de Octubre, Universidad Complutense de Madrid, Madrid, Spain
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Vapor A, Mendonça A, Tomaz CT. Processes for reducing egg allergenicity: Advances and different approaches. Food Chem 2021; 367:130568. [PMID: 34343811 DOI: 10.1016/j.foodchem.2021.130568] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Revised: 07/06/2021] [Accepted: 07/07/2021] [Indexed: 01/03/2023]
Abstract
Egg is a versatile ingredient and ubiquitous food. Nevertheless, egg proteins are a common cause of allergy mainly in childhood. Until now, egg eviction has been the best way to prevent this disorder, however, processed food can contribute to mitigate allergies and to guarantee life quality of allergic individuals. This review focuses on discussing and highlighting recent advances in processes to reduce egg allergenicity as well as new approaches to egg allergy management. In recent times, different methods have been developed to reduce egg allergies, by hiding the epitopes or changing the native or conformational structure of the proteins. Despite processing food has not yet been a solution to completely remove the allergenic potential of egg proteins, innovative strategies, such as addition of phenolic compounds, have been developed with promising results.
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Affiliation(s)
- Alcides Vapor
- Department of Chemistry, Faculty of Sciences, Universidade da Beira Interior, Covilhã, Portugal; CICS-UBI, Health Sciences Research Centre, Universidade da Beira Interior, Covilhã, Portugal
| | - António Mendonça
- Department of Chemistry, Faculty of Sciences, Universidade da Beira Interior, Covilhã, Portugal; CICS-UBI, Health Sciences Research Centre, Universidade da Beira Interior, Covilhã, Portugal
| | - Cândida T Tomaz
- Department of Chemistry, Faculty of Sciences, Universidade da Beira Interior, Covilhã, Portugal; CICS-UBI, Health Sciences Research Centre, Universidade da Beira Interior, Covilhã, Portugal.
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Fukutomi Y, Kawakami Y. Respiratory sensitization to insect allergens: Species, components and clinical symptoms. Allergol Int 2021; 70:303-312. [PMID: 33903033 DOI: 10.1016/j.alit.2021.04.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 03/24/2021] [Indexed: 12/14/2022] Open
Abstract
Airborne insect particles have been identified as an important cause of respiratory allergies, including allergic asthma and rhinitis. In the literature, the significance of respiratory exposure to insect particles as a cause of occupational allergy has been well-documented. Indeed, many cases of occupational allergy have been reported including allergy to the larvae of flies and moths in anglers and occupationally exposed workers, to grain pests in bakers or other workers handling grains, and to crickets and/or locusts in researchers and workers in aquaculture companies. Furthermore, the prevalence of sensitization to insect allergens is considerably high among patients with asthma and/or rhinitis who are not occupationally exposed to insects, suggesting the clinical relevance of exposure to insects in indoor and outdoor environmental non-occupational settings. Exposure to cockroaches, a well-studied indoor insect, is associated with cockroach sensitization and the development and exacerbation of asthma. Booklice, another common indoor insect, were recently identified as a significant sensitizer of asthmatic patients in Japan and India, and potentially of asthma patients living in warm and humid climates around the world. Lip b 1 was identified as an allergenic protein contributing to the species-specific sensitization to booklice. Moths are considered a significant seasonal outdoor allergen and their allergens are considered to have the highest sensitization rate among Japanese patients. However, other than cockroaches, allergenic insect proteins contributing to sensitization have not been fully characterized to date.
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45
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Cloning and immunobiochemical analyses on recombinant chymopapain allergen Cari p 2 showing pollen-fruit cross-reaction. Mol Immunol 2021; 137:42-51. [PMID: 34214828 DOI: 10.1016/j.molimm.2021.06.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 05/11/2021] [Accepted: 06/15/2021] [Indexed: 11/23/2022]
Abstract
Papaya is reported to trigger food and respiratory allergy. Here, we identified chymopapain Cari p 2 as an allergen that can sensitize atopic individuals through fruit consumption followed by respiratory hazards through pollen exposure. Recombinant Cari p 2 displayed IgE-reactivity with 78% of papaya allergic sera. rCari p 2 also displayed allergenic activity through basophil degranulation. rCari p 2 is correctly folded and showed irreversible denaturation in the melting curve. rCari p 2 displayed IgE-cross-reactivity with homologous cysteine proteases from kiwi and pineapple. Cari p 2 transcript was also detected in papaya pulps. rCari p 2 was resistant to pepsin digestion and retained IgE-reactivity after 60 minutes of pepsin digestion. In mouse model, rCari p 2 was found to elicit inflammatory responses in the lung and gastrointestinal epithelium. Hence, Cari p 2 is a newly characterized allergen with diagnostic and immunotherapeutic potential for managing allergic disorders in papaya sensitized individuals.
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46
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Skevaki C, Tafo P, Eiringhaus K, Timmesfeld N, Weckmann M, Happle C, Nelson PP, Maison N, Schaub B, Ricklefs I, Fuchs O, von Mutius E, Kopp MV, Renz H, Hansen G, Dittrich AM. Allergen extract- and component-based diagnostics in children of the ALLIANCE asthma cohort. Clin Exp Allergy 2021; 51:1331-1345. [PMID: 34128558 DOI: 10.1111/cea.13964] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 04/06/2021] [Accepted: 04/18/2021] [Indexed: 11/27/2022]
Abstract
BACKGROUND Current in vitro allergen-specific IgE (sIgE) detection assays measure IgE against allergen extracts or molecules in a single- or multiplex approach. Direct comparisons of the performance of such assays among young children with common presentations of allergic diseases regardless of sensitization status are largely missing. OBJECTIVES The aim of this study was a comparison of the analytical and diagnostic performance for common clinical questions of three commonly used technologies which rely upon different laboratory methodologies among children of the All Age Asthma (ALLIANCE) cohort (clinicaltrials.gov: NCT02496468). METHODS Sera from 106 paediatric study participants (mean age 4 years) were assessed for the presence of sIgE by means of the ImmunoCAP™ sx1 and fx5 mixes, the ImmunoCAP ISAC™ 112 microarray and a Euroline™ panel. RESULTS Total and negative concordance was high (>82%->89%), while positive concordance varied considerably (0%-100%) but was also >50% for the most common sensitizations analysed (house dust mite and birch). All three test systems showed good sensitivity and specificity (AUC consistently > 0.7). However, no significant differences with regard to identifying sIgE sensitizations associated with symptoms in children with suspected pollen- or dust-triggered wheeze or presenting with symptoms of allergic rhinoconjunctivitis or food allergy were detected. Extending the number of allergens did not change the similar performance of the three assay systems. CONCLUSION AND CLINICAL RELEVANCE Among young children, the three sIgE assays showed good analytical and diagnostic concordance. Our results caution that the identification of larger numbers of sensitizations by more comprehensive multiplex approaches may not improve the clinical utility of sIgE testing in this age group.
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Affiliation(s)
- Chrysanthi Skevaki
- Institute of Laboratory Medicine, Universities of Giessen and Marburg Lung Center (UGMLC), German Center for Lung Research (DZL), Philipps University Marburg, Marburg, Germany
| | - Pavel Tafo
- Institute of Laboratory Medicine, Universities of Giessen and Marburg Lung Center (UGMLC), German Center for Lung Research (DZL), Philipps University Marburg, Marburg, Germany
| | - Kathrin Eiringhaus
- Institute of Laboratory Medicine, Universities of Giessen and Marburg Lung Center (UGMLC), German Center for Lung Research (DZL), Philipps University Marburg, Marburg, Germany
| | - Nina Timmesfeld
- Department of Medical Informatics, Biometry and Epidemiology, Ruhr University, Bochum, Germany
| | - Markus Weckmann
- Department of Pediatric Pneumology & Allergology, University Medical Center Schleswig-Holstein, Lübeck, Germany.,Member of the German Center of Lung Research (DZL), Airway Research Center North (ARCN), Germany
| | - Christine Happle
- Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, BREATH German Center for Lung Research (DZL), Hannover, Germany
| | - Philipp P Nelson
- Institute of Laboratory Medicine, Universities of Giessen and Marburg Lung Center (UGMLC), German Center for Lung Research (DZL), Philipps University Marburg, Marburg, Germany
| | - Nicole Maison
- Dr. von Hauner Children's Hospital, Ludwig Maximilians University, Munich, Germany.,Institute of Asthma and Allergy Prevention, Helmholtz Centre, Munich, Germany.,German Centre for Lung Research, Munich, Germany
| | - Bianca Schaub
- Dr. von Hauner Children's Hospital, Ludwig Maximilians University, Munich, Germany.,German Centre for Lung Research, Munich, Germany
| | - Isabell Ricklefs
- Department of Pediatric Pneumology & Allergology, University Medical Center Schleswig-Holstein, Lübeck, Germany.,Member of the German Center of Lung Research (DZL), Airway Research Center North (ARCN), Germany
| | - Oliver Fuchs
- Department of Pediatric Pneumology & Allergology, University Medical Center Schleswig-Holstein, Lübeck, Germany.,Member of the German Center of Lung Research (DZL), Airway Research Center North (ARCN), Germany.,Dr. von Hauner Children's Hospital, Ludwig Maximilians University, Munich, Germany
| | - Erika von Mutius
- Dr. von Hauner Children's Hospital, Ludwig Maximilians University, Munich, Germany.,Institute of Asthma and Allergy Prevention, Helmholtz Centre, Munich, Germany.,German Centre for Lung Research, Munich, Germany
| | - Matthias Volkmar Kopp
- Department of Pediatric Pneumology & Allergology, University Medical Center Schleswig-Holstein, Lübeck, Germany.,Member of the German Center of Lung Research (DZL), Airway Research Center North (ARCN), Germany.,Division of Respiratory Medicine, Department of Pediatrics, University Children's Hospital, Inselspital, University of Bern, Bern, Switzerland
| | - Harald Renz
- Institute of Laboratory Medicine, Universities of Giessen and Marburg Lung Center (UGMLC), German Center for Lung Research (DZL), Philipps University Marburg, Marburg, Germany
| | - Gesine Hansen
- Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, BREATH German Center for Lung Research (DZL), Hannover, Germany
| | - Anna-Maria Dittrich
- Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, BREATH German Center for Lung Research (DZL), Hannover, Germany
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Popescu FD, Ganea CS, Panaitescu C, Vieru M. Molecular diagnosis in cat allergy. World J Methodol 2021; 11:46-60. [PMID: 34026578 PMCID: PMC8127422 DOI: 10.5662/wjm.v11.i3.46] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Revised: 02/22/2021] [Accepted: 05/10/2021] [Indexed: 02/06/2023] Open
Abstract
Domestic cats represent one of the most common sources of indoor allergens. All over the world, many households own cats, whose allergens are persistent and widespread. Cat allergy itself is frequent, and its symptoms vary from rhinoconjunctivitis to life-threatening asthma. In vitro diagnosis using precision medicine allergy immunoassays is important because natural cat dander extracts may differ in quality and quantity of some of the individual allergen components and other molecules. In the component-resolved diagnosis of cat allergy, singleplex and multiplex specific immunoglobulin (Ig) E assays include use of the cat-specific major allergen, secretoglobin Fel d 1 (as a species-specific molecule), other allergen components (such as lipocalins Fel d 4, cross-reacting with other animal similar molecules, and Fel d 7, present in small quantities in natural extracts), and serum albumin Fel d 2 (related to the cat-pork syndrome). IgA Fel d 5 and IgM Fel d 6 are not available as allergen components in the current commercial IgE immunoassays, but they may impair the in vitro diagnostic evaluation of cat allergy because galactose-α1,3-galactose is an IgE-binding epitope of these native feline allergens. The benefits of molecular-based cat allergy diagnosis are continually evaluated, as the role of recombinant allergen components already known is detailed and new other molecules of interest may be discovered in the future.
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Affiliation(s)
- Florin-Dan Popescu
- Department of Allergology and Clinical Immunology, “Nicolae Malaxa” Clinical Hospital, Bucharest 022441, Romania
- Department of Allergology, “Carol Davila” University of Medicine and Pharmacy, Bucharest 022441, Romania
| | - Carmen Saviana Ganea
- Department of Allergology and Clinical Immunology, “Nicolae Malaxa” Clinical Hospital, Bucharest 022441, Romania
| | - Carmen Panaitescu
- Department III Functional Sciences, Physiology Discipline, “Victor Babes” University of Medicine and Pharmacy, Timișoara 300041, Romania
- Center for Gene and Cell Therapies in Cancer Treatment OncoGen-SCJUPB Timisoara, Timișoara 300041, Romania
| | - Mariana Vieru
- Department of Allergology and Clinical Immunology, “Nicolae Malaxa” Clinical Hospital, Bucharest 022441, Romania
- Department of Allergology, “Carol Davila” University of Medicine and Pharmacy, Bucharest 022441, Romania
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Čelakovská J, Bukač J, Cermákova E, Vaňková R, Skalská H, Krejsek J, Andrýs C. Analysis of Results of Specific IgE in 100 Atopic Dermatitis Patients with the Use of Multiplex Examination ALEX2-Allergy Explorer. Int J Mol Sci 2021; 22:ijms22105286. [PMID: 34067936 PMCID: PMC8156228 DOI: 10.3390/ijms22105286] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 03/19/2021] [Accepted: 05/10/2021] [Indexed: 12/18/2022] Open
Abstract
Background and aim: Progress in laboratory diagnostics of IgE-mediated allergy is the use of component-resolved diagnosis. Our study analyses the results of specific IgE to 295 allergen reagents (117 allergenic extracts and 178 molecular components) in patients suffering from atopic dermatitis (AD) with the use of ALEX2 Allergy Explorer. Method: The complete dermatological and allergological examination, including the examination of the sensitization to molecular components with ALEX2 Allergy Explorer testing, was performed. The statistical analysis of results was performed with these methods: TURF (total unduplicated reach and frequency), best reach and frequency by group size, two-sided tests, Fisher’s exact test, and chi-square test (at an expected minimum frequency of at least 5). Results: Altogether, 100 atopic dermatitis patients were examined: 48 men, 52 women, the average age 40.9 years, min. age 14 years, max. age 67 years. The high and very high level of specific IgE was reached in 75.0% of patients to 18 molecular components: from PR-10 proteins (Aln g 1, Bet v 1, Cor a1.0103, Cor a1.0401, Fag s 1), lipocalin (Can f 1), NPC2 family (Der f 2, Der p 2), uteroglobin (Fel d 1), from Alternaria alternata (Alt a 1), Beta expansin (Lol p 1, Phl p 1), molecular components from Timothy, cultivated rye (Secc pollen) and peritrophin-like protein domain Der p 23. The high and very high level of specific IgE to other lipocalins (Fel d 7, Can f 4), to arginine kinase (Bla g 9, German cockroach), and to allergen extracts Art v (mugwort), and Cyn d (Bermuda grass) reached 52.0% of patients. The severity of AD is in significant relation to the sensitization to molecular components of storage mites (Gly d 2, Lep d 2—NPC2 family), lipocalins (Can f 1, Can f 2, Can f 4, and Can f 6), arginine kinase (Asp f 6, Bla g 9, Der p 20, Pen m 2), uteroglobin (Fel d 1, Ory c 3), Mn superoxide dismutase (Mala s 11), PR-10 proteins (Fag s 1, Mal d 1, Cor a 1.0401, Cor a 1.0103), molecular components of the peritrophin-like domain (Der p 21, Der p 23), and to Secc pollen. In the subgroup of patients suffering from bronchial asthma, the significant role play molecular components from house dust mites and storage mites (Lep d 2, Der p 2, Der f 2—NPC2 family), cysteine protease (Der p 1), peritrophin-like protein domain (Der p 21, Der p 23), enolase from Alternaria alternata (Alt a 6), and Beta expansin Phl p 1. Conclusion: The results of our study demonstrate the detailed profile of sensitization to allergens reagents (allergen extract and molecular components) in patients with atopic dermatitis. We show the significance of disturbed epidermal barrier, resulting in increased penetration of allergens. We confirmed the significant relationship between the severity of AD, the occurrence of bronchial asthma and allergic rhinitis, and high levels of specific IgE to allergen reagents. Our results may be important for regime measures and immunotherapy; Der p 23 shall be considered as an essential component for the diagnosis and specific immunotherapy of house dust mite allergy.
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Affiliation(s)
- Jarmila Čelakovská
- Department of Dermatology and Venereology, Faculty Hospital and Medical Faculty of Charles University, 50002 Hradec Králové, Czech Republic
- Correspondence:
| | - Josef Bukač
- Department of Medical Biophysic, Medical Faculty of Charles University, 50002 Hradec Králové, Czech Republic; (J.B.); (E.C.)
| | - Eva Cermákova
- Department of Medical Biophysic, Medical Faculty of Charles University, 50002 Hradec Králové, Czech Republic; (J.B.); (E.C.)
| | - Radka Vaňková
- Department of Clinical Immunology and Allergy, Faculty Hospital and Medical Faculty of Charles University, 50002 Hradec Králové, Czech Republic; (R.V.); (J.K.); (C.A.)
| | - Hana Skalská
- Department of Informatics and Quantitative Methods, Faculty of Informatics and Management, University of Hradec Kralove, 50003 Hradec Králové, Czech Republic;
| | - Jan Krejsek
- Department of Clinical Immunology and Allergy, Faculty Hospital and Medical Faculty of Charles University, 50002 Hradec Králové, Czech Republic; (R.V.); (J.K.); (C.A.)
| | - Ctirad Andrýs
- Department of Clinical Immunology and Allergy, Faculty Hospital and Medical Faculty of Charles University, 50002 Hradec Králové, Czech Republic; (R.V.); (J.K.); (C.A.)
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Purification and characterisation of the dimeric group 12 allergen from Blomia tropicalis heterologously expressed by Escherichia coli Top10F´. Mol Biol Rep 2021; 48:3405-3416. [PMID: 33914278 DOI: 10.1007/s11033-021-06361-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Accepted: 04/16/2021] [Indexed: 10/21/2022]
Abstract
Successful research in the wide-ranging field of allergy is usually achieved by definition not only of physicochemical and immunological properties of natural, but also recombinant allergens. Blomia tropicalis mite is a well-known source for various groups of hypersensitivity-causing proteins. The goal of the present work was to produce, purify and characterise by in silico, biochemical and immunological methods the recombinant group-12 allergen of B. tropicalis. The recombinant Blo t 12 aggregation capacity as well as the affinity to antibodies from BALB/c immunised mice and B. tropicalis-sensitised human donors were investigated through in silico analyses, dynamic light scattering, SDS-PAGE, ELISA and Western blot. The presence of Blo t 12 within B. tropicalis extracts was also determined by ELISA and Western blot. High concentrations of dimeric rBlo t 12 were detected through SDS-PAGE next to other aggregates and the results were confirmed by data from DLS and Western blot. The YITVM peptide was predicted to be the most aggregation-prone region. The IgE-reactivity of rBlo t 12 was not completely abolished by aggregate formation but it was significantly decreased compared to rBlo t 5, or B. tropicalis extracts. Natural Blo t 12 may naturally dimerises, but it was detected in non-delipidified B. tropicalis extracts in low amounts. Given that this allergen may be a specific marker for B. tropicalis allergy, the recombinant Blo t 12 herein obtained is characterised as a mid-tier allergen in Brazilian atopic patients and may be useful for the improvement in precision allergy molecular diagnostic applications.
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Maesa JM, Dobrzynska A, Baños-Álvarez E, Isabel-Gómez R, Blasco-Amaro JA. ImmunoCAP ISAC in food allergy diagnosis: a systematic review of diagnostic test accuracy. Clin Exp Allergy 2021; 51:778-789. [PMID: 33847011 DOI: 10.1111/cea.13871] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 03/16/2021] [Accepted: 03/17/2021] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To assess the diagnostic test accuracy of the component-resolved diagnosis device ImmunoCAP ISAC, compared with oral food challenge. DESIGN Systematic review reported according to the PRISMA-DTA recommendations. DATA SOURCES Medline, Embase and Cochrane Library databases were searched from inception to May 2019 and updated in March 2021. ELIGIBILITY CRITERIA FOR SELECTING STUDIES We included diagnostic test accuracy studies comparing ISAC component results as the index test with oral food challenge as the reference test, in people of any age suspected of IgE mediated food allergy to milk, egg, peanut, shrimp, hake, apple, peach, kiwi, melon, walnut, hazelnut, wheat or pineapple. Risk of bias was evaluated using the QUADAS-2 tool. RESULTS We screened 799 titles and included 11 studies - seven prospective and two retrospective cohort studies, two case-control studies. Included studies evaluated IgE to Gald1 (three studies, 300 participants, 140 with egg allergy), Bosd5 (three studies, 242 participants, 146 with milk allergy) and Arah1 or 2 (seven studies, 546 participants, 346 with peanut allergy). No studies were identified for other ISAC components. Risk of bias was high or unclear mainly due to inadequate blinding. Applicability was of high or unclear concern due to unclear thresholds, inappropriate exclusions and variable populations. Gald1 sensitivity ranged from 58 to 84%, specificity 87%-97%. Bosd5 sensitivity 24%-40%, specificity 94%-95%. Arah1 sensitivity 45%-91%, specificity 41%-93%. Arah2 sensitivity 70%-94%, specificity 75%-95%. CONCLUSIONS Diagnostic test accuracy information for ISAC components was only available for milk, egg and peanut. Specificity is generally higher than sensitivity, which contrasts with the performance of skin prick and standard specific IgE tests for diagnosing food allergy. Higher quality information is needed to determine the clinical utility of ISAC for food allergy diagnosis. SYSTEMATIC REVIEW REGISTRATION Not registered.
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Affiliation(s)
- José-María Maesa
- Health Technology Assessment Area of Andalusia (AETSA), Fundación Pública Progreso y Salud, Sevilla, Spain
| | - Agnieszka Dobrzynska
- Health Technology Assessment Area of Andalusia (AETSA), Fundación Pública Progreso y Salud, Sevilla, Spain
| | - Elena Baños-Álvarez
- Health Technology Assessment Area of Andalusia (AETSA), Fundación Pública Progreso y Salud, Sevilla, Spain
| | - Rebeca Isabel-Gómez
- Health Technology Assessment Area of Andalusia (AETSA), Fundación Pública Progreso y Salud, Sevilla, Spain
| | - Juan-Antonio Blasco-Amaro
- Health Technology Assessment Area of Andalusia (AETSA), Fundación Pública Progreso y Salud, Sevilla, Spain
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