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Li J, Yi X, Guan K, Yin J. Pru p 3-specific IgE affinity is crucial in severe peach-allergy patients. World Allergy Organ J 2024; 17:100922. [PMID: 38966604 PMCID: PMC11223113 DOI: 10.1016/j.waojou.2024.100922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 05/14/2024] [Accepted: 05/24/2024] [Indexed: 07/06/2024] Open
Abstract
Background Peach allergy is common food allergen. Allergen components-specific antibodies of different isotypes in peach-allergy patients are poorly studied. Factors other than Pru p 3-sIgE levels may be related to severe symptoms. Objective To evaluated peach component-specific-IgE, IgG1, and IgG4 characteristics in individuals with and without peach allergy, and Pru p 3-sIgE affinity in patients with different clinical symptoms. Methods Fifteen healthy controls and 32 peach-allergy patients were enrolled. sIgE, sIgG1, and sIgG4 to 5 Escherichia coli-expressed peach-allergen components were determined by enzyme-linked immunosorbent assays. Pru p 3-sIgE affinity was measured in Pru p 3-sIgE-positive patients, using immunoadsorbance. Results Patients were divided into oral allergy syndrome (OAS) and peach-induced anaphylaxis (PIA) groups. Serum Pru p 1-, Pru p 2-, Pru p 3-, Pru p 4-, and Pru p 7-sIgG1s were detected. Pru p 1- and Pru p 2-sIgG1 levels were higher in healthy controls, but Pru p 3-sIgG1 levels were significantly higher in peach-allergy patients. Pru p 1-, Pru p 3-, and Pru p 4-sIgG4-positivity was significantly greater among patients than among controls. Pru p 3 was the predominant allergen in peach-allergy patients. Allergen-sIgG1 and sIgG4 were similar between OAS and PIA patients. Pru p 3-sIgE levels were significantly higher in PIA patients, but Pru p 3-sIgE-positivity was similar in both groups. In Pru p 3-sIgE-positive patients, Pru p 3-sIgE affinity was significantly higher in PIA than OAS patients. Conclusions Allergen-sIgG1 was associated with allergen exposure. Both Pru p 3-sIgE levels and affinity are key factors in severe peach-allergy patients.
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Affiliation(s)
- JunDa Li
- Department of Allergy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
- Department of Allergy, Peking Union Medical College Hospital, Beijing Key Laboratory of Precision Medicine for Diagnosis and Treatment on Allergic Diseases, Beijing, China
- Department of Allergy, Peking Union Medical College Hospital, National Clinical Research Center for Dermatologic and Immunologic Disease, Beijing, China
| | - XiLian Yi
- Department of Allergy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
- Department of Allergy, Peking Union Medical College Hospital, Beijing Key Laboratory of Precision Medicine for Diagnosis and Treatment on Allergic Diseases, Beijing, China
- Department of Allergy, Peking Union Medical College Hospital, National Clinical Research Center for Dermatologic and Immunologic Disease, Beijing, China
| | - Kai Guan
- Department of Allergy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
- Department of Allergy, Peking Union Medical College Hospital, Beijing Key Laboratory of Precision Medicine for Diagnosis and Treatment on Allergic Diseases, Beijing, China
- Department of Allergy, Peking Union Medical College Hospital, National Clinical Research Center for Dermatologic and Immunologic Disease, Beijing, China
| | - Jia Yin
- Department of Allergy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
- Department of Allergy, Peking Union Medical College Hospital, Beijing Key Laboratory of Precision Medicine for Diagnosis and Treatment on Allergic Diseases, Beijing, China
- Department of Allergy, Peking Union Medical College Hospital, National Clinical Research Center for Dermatologic and Immunologic Disease, Beijing, China
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Sato S, Ebisawa M. Precision allergy molecular diagnosis applications in food allergy. Curr Opin Allergy Clin Immunol 2024; 24:129-137. [PMID: 38529801 DOI: 10.1097/aci.0000000000000977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
Abstract
PURPOSE OF REVIEW Precision medicine has become important in the diagnosis and management of food allergies. This review summarizes the latest information regarding molecular allergology, an essential component of food allergy managements. RECENT FINDINGS Component-resolved diagnostics (CRD) can be used to investigate sensitization to allergens based on symptoms and to reveal co-sensitization and/or cross-sensitization in patients with allergies. The following allergen components are known to be associated with symptoms: ovomucoid from eggs, omega-5 gliadin from wheat, and many storage proteins (Gly m 8 from soy, Ara h 2 from peanut, Cor a 14 from hazelnut, Ana o 3 from cashew nut, Jug r 1 from walnut, and Ses i 1 from sesame). Recent studies on allergens of macadamia nuts (Mac i 1 and Mac i 2), almonds (Pru du 6), fish (parvalbumin and collagen), and shrimp (Pem m 1 and Pem m 14) have provided additional information regarding CRD. In addition, Pru p 7 is a risk factor for systemic reactions to peaches and has recently been found to cross-react with cypress and Japanese cedar pollen. SUMMARY CRD provides information of individualized sensitization profiles related to symptoms and severity of allergies in patients. Clinical practice based on CRD offers many benefits, such as higher diagnostic accuracy and improved management of individual patients.
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Affiliation(s)
- Sakura Sato
- Department of Allergy, Clinical Research Center for Allergy and Rheumatology, NHO Sagamihara National Hospital, Kanagawa, Japan
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Cecchi L, Poncet P, Maltagliati L, Carli G, Macchia D, Maggi L, Meucci E, Parronchi P, Mazzoni A, Salvati L, Scala E, Sénéchal H, Aizawa T, Villalta D, Annunziato F, Cosmi L, Farsi A. Optimization of the diagnosis and characterization of gibberellin-regulated protein sensitization: An Italian cohort study. Ann Allergy Asthma Immunol 2024; 132:82-90.e1. [PMID: 37758056 DOI: 10.1016/j.anai.2023.09.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 09/07/2023] [Accepted: 09/20/2023] [Indexed: 10/03/2023]
Abstract
BACKGROUND Pru p 7 was the first gibberellin-regulated protein (GRP) to be identified as a food allergen as the basis of a pollen food allergy syndrome. OBJECTIVE To clinically and biologically characterize a group of patients with suspected allergy to Pru p 7 to optimize the diagnostic workup of GRP sensitization. METHODS Allergy to Pru p 7 was suspected in the presence of a systemic allergic reaction to plant food, positive skin prick test results for cypress pollen and lipid-transfer protein-enriched peach extract, and absence of Pru p 3-specific immunoglobulin E. Controls were patients with food allergies, patients sensitized to Pru p 3, and patients with cypress allergy without food allergy. Diagnostic workup included skin tests, basophil activation test, Western blot, and single and multiplex assays. RESULTS In total, 23 patients and 14 controls were enrolled. The most implicated food was peach (91.3%). Approximately 70% of patients reacted to multiple foods. Mueller 4 reactions were 8.7%. In 26.1% of cases, a cofactor triggered the reaction. The basophil activation test results were positive for rPru p 7 in 87% of the patients. Specific immunoglobulin E to Pru p 7 was detected in 95.7% by singleplex and in 73.9% by multiplex assays in patients with suspected allergies; 73.9% of them also reacted to cypress pollen GRP (Cup s 7) in Western blot analysis. CONCLUSION Patients with Pru p 7-Cup s 7 allergy in our cohort confirm a mild-to-severe clinical syndrome characterized by pollen and food allergy. The diagnosis may benefit from the proposed selection criteria that can be used as preliminary steps to further characterize the cross-reactive GRP sensitization.
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Affiliation(s)
- Lorenzo Cecchi
- SOSD Allergology and Clinical Immunology, Ospedale S. Stefano, USL Toscana Centro, Prato, Italy.
| | - Pascal Poncet
- Department of Biochemistry, Armand Trousseau Children Hospital, Assistance Publique-Hôpitaux de Paris, Allergy & Environment Research Team, Paris, France; Department of Immunology, Institut Pasteur, Paris, France
| | - Lucia Maltagliati
- SOSD Allergology and Clinical Immunology, Ospedale S. Giovanni di Dio, USL Toscana Centro, Firenze, Italy
| | - Giulia Carli
- SOSD Allergology and Clinical Immunology, Ospedale S. Stefano, USL Toscana Centro, Prato, Italy
| | - Donatella Macchia
- SOSD Allergology and Clinical Immunology, Ospedale S. Giovanni di Dio, USL Toscana Centro, Firenze, Italy
| | - Laura Maggi
- Department of Experimental and Clinical Medicine, University of Florence, Firenze, Italy
| | - Elisa Meucci
- SOSD Allergology and Clinical Immunology, Ospedale S. Giovanni di Dio, USL Toscana Centro, Firenze, Italy
| | - Paola Parronchi
- Department of Experimental and Clinical Medicine, University of Florence, Firenze, Italy; Immunology and Cell Therapy Unit, Careggi University Hospital, Firenze, Italy
| | - Alessio Mazzoni
- Department of Experimental and Clinical Medicine, University of Florence, Firenze, Italy
| | - Lorenzo Salvati
- Department of Experimental and Clinical Medicine, University of Florence, Firenze, Italy
| | - Enrico Scala
- Clinical and Laboratory Molecular Allergy Unit, Istituto Dermopatico dell'Immacolata-IRCCS, Rome, Italy
| | - Hélène Sénéchal
- Department of Biochemistry, Armand Trousseau Children Hospital, Assistance Publique-Hôpitaux de Paris, Allergy & Environment Research Team, Paris, France
| | - Tomoyasu Aizawa
- Hokkaido University, Protein Science Laboratory, Sapporo, Japan
| | - Danilo Villalta
- Immunologia e allergologia, Ospedale S. Maria degli Angeli, Pordenone, Italy
| | - Francesco Annunziato
- Department of Experimental and Clinical Medicine, University of Florence, Firenze, Italy; Flow Cytometry Diagnostic Center and Immunotherapy, Careggi University Hospital, Firenze, Italy
| | - Lorenzo Cosmi
- Department of Experimental and Clinical Medicine, University of Florence, Firenze, Italy; Immunoallergology Unit, Careggi University Hospital, Florence, Italy
| | - Alessandro Farsi
- SOSD Allergology and Clinical Immunology, Ospedale S. Stefano, USL Toscana Centro, Prato, Italy
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Kallen EJJ, Revers A, Fernández-Rivas M, Asero R, Ballmer-Weber B, Barreales L, Belohlavkova S, de Blay F, Clausen M, Dubakiene R, Ebisawa M, Fernández-Perez C, Fritsche P, Fukutomi Y, Gislason D, Hoffmann-Sommergruber K, Jedrzejczak-Czechowicz M, Knulst AC, Kowalski ML, Kralimarkova T, Lidholm J, Metzler C, Mills ENC, Papadopoulos NG, Popov TA, Purohit A, Reig I, Seneviratne SL, Sinaniotis A, Takei M, Versteeg SA, Vassilopoulou AE, Vieths S, Welsing PMJ, Zwinderman AH, Le TM, Van Ree R. A European-Japanese study on peach allergy: IgE to Pru p 7 associates with severity. Allergy 2023; 78:2497-2509. [PMID: 37334557 DOI: 10.1111/all.15783] [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: 01/23/2023] [Revised: 04/28/2023] [Accepted: 05/05/2023] [Indexed: 06/20/2023]
Abstract
BACKGROUND Pru p 3 and Pru p 7 have been implicated as risk factors for severe peach allergy. This study aimed to establish sensitization patterns to five peach components across Europe and in Japan, to explore their relation to pollen and foods and to predict symptom severity. METHODS In twelve European (EuroPrevall project) and one Japanese outpatient clinic, a standardized clinical evaluation was conducted in 1231 patients who reported symptoms to peach and/or were sensitized to peach. Specific IgE against Pru p 1, 2, 3, 4 and 7 and against Cup s 7 was measured in 474 of them. Univariable and multivariable Lasso regression was applied to identify combinations of parameters predicting severity. RESULTS Sensitization to Pru p 3 dominated in Southern Europe but was also quite common in Northern and Central Europe. Sensitization to Pru p 7 was low and variable in the European centers but very dominant in Japan. Severity could be predicted by a model combining age of onset of peach allergy, probable mugwort, Parietaria pollen and latex allergy, and sensitization to Japanese cedar pollen, Pru p 4 and Pru p 7 which resulted in an AUC of 0.73 (95% CI 0.73-0.74). Pru p 3 tended to be a risk factor in South Europe only. CONCLUSIONS Pru p 7 was confirmed as a significant risk factor for severe peach allergy in Europe and Japan. Combining outcomes from clinical and demographic background with serology resulted in a model that could better predict severity than CRD alone.
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Affiliation(s)
- E J J Kallen
- Department of Dermatology/Allergology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - A Revers
- Epidemiology and Data Science (EDS), Amsterdam University Medical Center location University of Amsterdam, Amsterdam, The Netherlands
| | - M Fernández-Rivas
- Department of Allergy, Hospital Clinico San Carlos, Universidad Complutense, IdISSC, ARADyAL, Madrid, Spain
| | - R Asero
- Ambulatorio di Allergologia, Clinica San Carlo, Paderno Dugnano, Italy
| | - B Ballmer-Weber
- Allergy Unit, Department of Dermatology, University Hospital of Zürich, Zürich, Switzerland
- Faculty of Medicine, University of Zürich, Zürich, Switzerland
- Clinic for Dermatology and Allergology, Kantonsspital St. Gallen, St. Gallen, Switzerland
| | - L Barreales
- Department of Allergy, Hospital Clinico San Carlos, Universidad Complutense, IdISSC, ARADyAL, Madrid, Spain
| | - S Belohlavkova
- Medical Faculty Pilsen, Charles University Prague, Prague, Czech Republic
| | - F de Blay
- Allergy Division, Chest Disease Department, Strasbourg University Hospital, Strasbourg, France
| | - M Clausen
- Landspitali University Hospital, University of Iceland, Faculty of Medicine, Reykjavik, Iceland
| | - R Dubakiene
- Clinic of Chest diseases, Allergology and Immunology Institute of Clinic al Medicine Medical Faculty Vilnius University, Vilnius, Lithuania
| | - M Ebisawa
- Clinical Research Center for Allergy and Rheumatology, National Hospital Organization, Sagamihara National Hospital, Kanagawa, Japan
| | - C Fernández-Perez
- Servicio de Medicina Preventiva, Area De Santiago de Compostela y Barbanza, Instituto de Investigación Sanitaria de Santiago (IDIS) A Coruña, Santiago, Spain
| | - P Fritsche
- Allergy Unit, Department of Dermatology, University Hospital of Zürich, Zürich, Switzerland
| | - Y Fukutomi
- Clinical Research Center for Allergy and Rheumatology, National Hospital Organization, Sagamihara National Hospital, Kanagawa, Japan
| | - D Gislason
- Landspitali University Hospital, University of Iceland, Faculty of Medicine, Reykjavik, Iceland
| | - K Hoffmann-Sommergruber
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria
| | - M Jedrzejczak-Czechowicz
- Department of Immunology and Allergy, Faculty of Medicine, Medical University of Lodz, Lodz, Poland
| | - A C Knulst
- Department of Dermatology/Allergology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - M L Kowalski
- Department of Immunology and Allergy, Faculty of Medicine, Medical University of Lodz, Lodz, Poland
| | - T Kralimarkova
- Clinic of Occupational Diseases, University Hospital Sv. Ivan Rilski, Sofia, Bulgaria
| | - J Lidholm
- Thermo Fisher Scientific, Uppsala, Sweden
| | - C Metzler
- Allergy Unit, Department of Dermatology, University Hospital of Zürich, Zürich, Switzerland
| | - E N C Mills
- Division of Infection, Immunity and Respiratory Medicine, Manchester Institute of Biotechnology & Lydia Becker Institute of Immunology and Inflammation, University of Manchester, Manchester, UK
| | - N G Papadopoulos
- Allergy Department, 2nd Pediatric Clinic, University of Athens, Athens, Greece
| | - T A Popov
- Clinic of Occupational Diseases, University Hospital Sv. Ivan Rilski, Sofia, Bulgaria
| | - A Purohit
- Allergy Division, Chest Disease Department, Strasbourg University Hospital, Strasbourg, France
| | - I Reig
- Allergist and Pediatrician, Nápoles y Sicilia Health Center, Valencia, Spain
| | - S L Seneviratne
- Institute of Immunity and Transplantation, University College London, London, UK
| | - A Sinaniotis
- Allergy Department, 2nd Pediatric Clinic, University of Athens, Athens, Greece
| | - M Takei
- Clinical Research Center for Allergy and Rheumatology, National Hospital Organization, Sagamihara National Hospital, Kanagawa, Japan
| | - S A Versteeg
- Department of Experimental Immunology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - A E Vassilopoulou
- Department of Nutritional Sciences and Dietetics, International Hellenic University, Thessaloniki, Greece
| | - S Vieths
- Paul-Ehrlich-Institut, Federal Institute for Vaccines and Biomedicines, Langen, Germany
| | - P M J Welsing
- Department of Dermatology/Allergology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - A H Zwinderman
- Epidemiology and Data Science (EDS), Amsterdam University Medical Center location University of Amsterdam, Amsterdam, The Netherlands
| | - T M Le
- Department of Dermatology/Allergology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - R Van Ree
- Departments of Experimental Immunology and of Otorhinolaryngology, Amsterdam University Medical Center, Amsterdam, The Netherlands
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Kang W, Zhang J, Yu N, He L, Chen Y. Effect of ultrahigh-pressure treatment on the structure and allergenicity of peach allergenic proteins. Food Chem 2023; 423:136227. [PMID: 37201255 DOI: 10.1016/j.foodchem.2023.136227] [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: 08/24/2022] [Revised: 03/24/2023] [Accepted: 04/20/2023] [Indexed: 05/20/2023]
Abstract
Peach is a common plant-derived allergenic food and ultrahigh-pressure treatment is often used in peach products. In our study, an in-depth analysis of the structural and allergenicity changes of peach allergenic proteins after UHP treatment was performed by spectroscopy, mass spectrometry combined with serology and cytology. The results indicated that UHP treatment could reduce the content of peach soluble proteins and cause changes in secondary and tertiary structures. In addition, more hydrophobic residues were exposed and proteins tended to polymerize after UHP-treatment. The results of immunological assays showed that UHP treatment could reduce the IgE binding capacity of peach proteins and affect the ability of basophil degranulation, the upregulation of some cytokines may contribute to the reduction of peach protein allergenicity. Notably, UHP treatment may lead to the masking of some digestion sites in Pru p 3 epitopes, thus impeding human digestion and increasing the potential risk of allergenicity.
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Affiliation(s)
- Wenhan Kang
- Chinese Academy of Inspection and Quarantine, Beijing 100176, PR China
| | - Jiukai Zhang
- Chinese Academy of Inspection and Quarantine, Beijing 100176, PR China
| | - Ning Yu
- Chinese Academy of Inspection and Quarantine, Beijing 100176, PR China
| | - Lei He
- Chinese Academy of Inspection and Quarantine, Beijing 100176, PR China
| | - Ying Chen
- Chinese Academy of Inspection and Quarantine, Beijing 100176, PR China.
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Inuo C, Okazaki F, Shiraki R, Tanaka Y, Momma K, Kondo Y, Narita H. Generalized allergic reaction in response to exercise due to strawberry gibberellin-regulated protein: a case report. ALLERGY, ASTHMA, AND CLINICAL IMMUNOLOGY : OFFICIAL JOURNAL OF THE CANADIAN SOCIETY OF ALLERGY AND CLINICAL IMMUNOLOGY 2022; 18:49. [PMID: 35690877 PMCID: PMC9188171 DOI: 10.1186/s13223-022-00692-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 05/30/2022] [Indexed: 11/10/2022]
Abstract
Background The Rosaceae family includes fruits, such as peach, apple, Japanese apricot, cherry (Prunoideae subfamily), and strawberry (Rosoideae subfamily). The allergens responsible for Rosaceae fruit allergies have been reported to include Bet v 1 and profilin, which mainly cause oral symptoms, and lipid transfer protein (LTP). Recently, gibberellin-regulated protein (GRP) has been identified as an allergen that induces generalized symptoms in peach-, orange-, and plum-related allergies. Most patients with food allergies induced by GRP show allergic symptoms accompanied by cofactors, such as exercise or drugs. To date, there are very few reports of generalized symptoms induced by strawberry. Case presentation We evaluated the reactivity of strawberry GRP in a 15-year-old boy who was confirmed to have generalized symptoms induced by strawberry with exercise using an oral food challenge test (OFCT). The patient’s serum exhibited a strong positive reaction to strawberry GRP but not to peach GRP or peach LTP. The patient’s basophils reacted to strawberry and peach GRP but not to peach LTP. Conclusions Strawberry GRP may be a causative component for strawberry with exercise-induced generalized symptoms in this patient. This is the first study to investigate the role of GRP in strawberry with cofactor-induced allergic symptoms. Further epidemiological and clinical researches are necessary to improve diagnostic and therapeutic approaches for patients with strawberry allergy.
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Affiliation(s)
- Chisato Inuo
- Department of Allergy, Kanagawa Children's Medical Center, 2-138-4 Mutsukawa, Minami-ku, Yokohama, Kanagawa, 232-8555, Japan.
| | - Fumiko Okazaki
- Department of Food Science and Human Nutrition Faculty of Agriculture, Ryukoku University, 1-5 Yokotani, Seta Oe-cho, Otsu, Shiga, 520-2194, Japan
| | - Rie Shiraki
- Department of Food Science and Human Nutrition Faculty of Agriculture, Ryukoku University, 1-5 Yokotani, Seta Oe-cho, Otsu, Shiga, 520-2194, Japan
| | - Yutaka Tanaka
- Department of Allergy, Kanagawa Children's Medical Center, 2-138-4 Mutsukawa, Minami-ku, Yokohama, Kanagawa, 232-8555, Japan
| | - Keiko Momma
- Department of Food Science, Kyoto Women's University, 35 Kitahiyoshi-cho, Imakumano, Higashiyama-ku, Kyoto, 605-8501, Japan
| | - Yasuto Kondo
- Department of Pediatrics, Fujita Health University Bantane Hospital, 3-6-10 Otobashi, Nakagawa-Ku, Nagoya, Aichi, Japan
| | - Hiroshi Narita
- Department of Food Science, Kyoto Women's University, 35 Kitahiyoshi-cho, Imakumano, Higashiyama-ku, Kyoto, 605-8501, Japan.,Kyoto College of Nutritional and Medical Sciences, 18 Setogawa-cho, Sagatenryuji, Ukyo-ku, Kyoto, Japan
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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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Phenotypes and Endotypes of Peach Allergy: What Is New? Nutrients 2022; 14:nu14050998. [PMID: 35267973 PMCID: PMC8912752 DOI: 10.3390/nu14050998] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 02/15/2022] [Accepted: 02/25/2022] [Indexed: 02/04/2023] Open
Abstract
Peach allergy is emerging as a common type of fresh-fruit allergy in Europe, especially in the Mediterranean area. The clinical manifestations of peach allergy tend to have a peculiar geographical distribution and can range from mild oral symptoms to anaphylaxis, depending on the allergic sensitization profile. The peach allergen Pru p 7, also known as peamaclein, has recently been identified as a marker of peach allergy severity and as being responsible for peculiar clinical features in areas with high exposure to cypress pollen. This review addresses the latest findings on molecular allergens for the diagnosis of peach allergy, the clinical phenotypes and endotypes of peach allergy in adults and children, and management strategies, including immunotherapy, for peach allergy.
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9
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Wangorsch A, Scheurer S, Blanca M, Blanca-Lopez N, Somoza ML, Martín-Pedraza L. Allergenic Properties and Molecular Characteristics of PR-1 Proteins. FRONTIERS IN ALLERGY 2022; 3:824717. [PMID: 35386656 PMCID: PMC8974740 DOI: 10.3389/falgy.2022.824717] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 01/03/2022] [Indexed: 11/17/2022] Open
Abstract
Only a small fraction of proteins in plants and animals are classified as allergens. The allergenic properties are frequently attributed to certain functional characteristics of the proteins, such as a role in the plant defense against biotic and abiotic stress, to achieve the systematic acquired resistance. In line with this, eight members out of 17 functional pathogenesis-related (PR) protein families have been characterized as allergens. The present review summarizes the molecular features and allergenic significance of allergens of the PR-1 family. Not many allergens have been identified as belonging to this protein family, with most of them having a pollen origin, like mugwort or Bermuda grass. Molecular and structural features of allergenic PR-1 proteins are discussed and attributed to their IgE-reactive properties, clinical manifestation, and cross-reactivity among different foods and inhalants.
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Affiliation(s)
| | | | - Miguel Blanca
- Foundation for Biomedical Research and Innovation, Hospital Universitario Infanta Leonor, Madrid, Spain
| | | | | | - Laura Martín-Pedraza
- Foundation for Biomedical Research and Innovation, Hospital Universitario Infanta Leonor, Madrid, Spain
- *Correspondence: Laura Martín-Pedraza
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Somoza ML, Prieto-Moreno Pfeifer A, Martín-Pedraza L, Victorio Puche L, Esteban Rodríguez A, Blanca-López N, Eva Fernández González A, Fernández-Caldas E, Morán Morales M, Fernández-Sánchez FJ, López Sánchez JD, Garrido-Lestache JLS, Canto G, Blanca M. Skin Testing With Peach Peel Extract Versus Serum IgE to Pru p 3 as a Stronger Predictor of Peach-Induced Anaphylaxis. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2021; 13:922-932. [PMID: 34734509 PMCID: PMC8569022 DOI: 10.4168/aair.2021.13.6.922] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 07/25/2021] [Accepted: 08/17/2021] [Indexed: 11/20/2022]
Abstract
The most important peach fruit allergen is Pru p 3, followed by Pru p 1, Pru p 4, and Pru p 7. We aimed to assess their role in subjects with peach fruit-induced allergy (anaphylaxis and OAS) and compare skin prick tests (SPT) vs. specific immunoglobulin E (sIgE) for predicting anaphylaxis. We also selected a control group. SPT included prevalent inhalant and plant food allergens plus peach peel extract. The sIgE to Pru p 1, Pru p 3, Pru p 4, and Pru p 7 were quantified. Compared with controls (n = 42), cases (n = 41) were younger (P = 0.003), more frequently female (P < 0.05) and had higher SPT positivity to peach peel (44% vs. 2.4%, P < 0.0001). There were significant differences in sensitization to several pollens: Olea europaea, Artemisia vulgaris, Prunus persica, Platanus acerifolia (all P < 0.001); and fruits: apple (P < 0.04), peanut (P < 0.002), tomato (P < 0.005), and melon (P < 0.05). Pru p 3 sIgE was detected in 61% of all cases (85% anaphylaxis and 38% OAS; P < 0.01 each) and 5% of controls (P < 0.001). Pru p 4 sIgE was present in 19% of cases and 7% of controls. The sIgE to Pru p 1 and Pru p 7 were not found. The odds ratio to predict anaphylaxis for peach peel SPT was 113 (confidence interval [CI], 20–613; P < 0.0001); for sIgE to Pru p 3, 22 (CI, 5.3–93; P < 0.0001); and for SPT positivity to selected plant food allergens, 5 (CI, 1–19; P < 0.05). In our study group, SPT with peel peach extract was a better predictor of anaphylaxis than Pru p 3 sIgE or other variables considered. The role of sIgE to Pru p 1, Pru p 4, and Pru p 7 seemed negligible.
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Affiliation(s)
- Maria Luisa Somoza
- Department of Allergy, Infanta Leonor University Hospital, Madrid, Spain.
| | | | - Laura Martín-Pedraza
- Department of Allergy, Fundación para la Investigación e Innovación Biomédica (FIIB) de los Hospitales Universitarios Infanta Leonor y Sureste, Madrid, Spain
| | - Laura Victorio Puche
- Department of Allergy, Morales Meseguer General University Hospital, Murcia, Spain
| | | | | | | | - Enrique Fernández-Caldas
- R&D Department, Inmunotek Laboratories, Madrid, Spain.,Division of Allergy and Immunology, University of South Florida College of Medicine, Tampa, FL, USA
| | | | - Francisco Javier Fernández-Sánchez
- Department of Allergy, General University Hospital of Alicante-ISABIAL, Alicante, Spain.,Department of Clinical Medicine, Miguel Hernandez University, Alicante, Spain
| | | | | | - Gabriela Canto
- Department of Allergy, Infanta Leonor University Hospital, Madrid, Spain.,School of Medicine, Universidad Complutense de Madrid, Madrid, Spain
| | - Miguel Blanca
- Department of Allergy, Infanta Leonor University Hospital, Madrid, Spain
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11
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Tuppo L, Alessandri C, Giangrieco I, Tamburrini M, Arriaza RH, Chruszcz M, Mari A, Ciardiello MA. When the Frequencies of Sensitization and Elicitation of Allergic Reaction Do Not Correlate-The Case of Apple Gibberellin-Regulated Protein Tested in an Italian Population. FRONTIERS IN ALLERGY 2021; 2:745825. [PMID: 35387024 PMCID: PMC8974745 DOI: 10.3389/falgy.2021.745825] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 09/22/2021] [Indexed: 01/28/2023] Open
Abstract
Background: The literature reports describing allergic symptoms against apples in the patients sensitized to the gibberellin-regulated proteins (GRPs) suggested the presence of an allergenic GRP in this fruit. Objective: This study aimed to assess the presence of a GRP protein in apples and investigate its allergenicity. Methods: The protein was isolated and identified by the classical biochemical methods. The bioinformatics tools were used for similar searches and molecular modeling. The immunological features were investigated using the multiplex FABER test. Clinical data were collected by the allergy specialists. Results: A GRP was detected in the apple peel and pulp and it was named applemaclein. This protein displays 94% of sequence identity with peamaclein, Pru p 7, representing the prototype of this allergen family. The applemaclein molecular model shows a very irregular surface with grooves/clefts that may potentially accommodate small molecular ligands. In a population of 4,721 patients in Italy, 187 (4.0%) were sensitized to any allergenic GPR. Of those, 115 (61.5%), 61 (32.6%), 30 (16.0%), and 99 (52.9%) had immunoglobulin E (IgE) to apple, peach, pomegranate, and cypress GRP, respectively. However, in a cohort of the patients in Italy, most individuals IgE positive to the apple GRP did not report allergic reactions against this fruit. Conclusion: Compared with the peach Pru p 7, applemaclein shows some different structural features and higher sensitization frequency, which is often not associated with allergic reactions against apple. Further studies are needed to understand a possible correlation between the applemaclein structural properties, the interaction with still unknown molecules, and immunological behavior.
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Affiliation(s)
- Lisa Tuppo
- Institute of Biosciences and BioResources (IBBR), CNR, Naples, Italy,Allergy Data Laboratories (ADL) S.r.l., Latina, Italy
| | - Claudia Alessandri
- Allergy Data Laboratories (ADL) S.r.l., Latina, Italy,Associated Centers for Molecular Allergology (CAAM), Rome, Italy
| | - Ivana Giangrieco
- Institute of Biosciences and BioResources (IBBR), CNR, Naples, Italy,Allergy Data Laboratories (ADL) S.r.l., Latina, Italy
| | | | | | - Maksymilian Chruszcz
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC, United States
| | - Adriano Mari
- Allergy Data Laboratories (ADL) S.r.l., Latina, Italy,Associated Centers for Molecular Allergology (CAAM), Rome, Italy
| | - Maria Antonietta Ciardiello
- Institute of Biosciences and BioResources (IBBR), CNR, Naples, Italy,*Correspondence: Maria Antonietta Ciardiello
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12
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Brar KK. Food Allergy Evaluation for Dermatologic Disorders. Immunol Allergy Clin North Am 2021; 41:517-526. [PMID: 34225904 DOI: 10.1016/j.iac.2021.04.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Food allergy evaluation for dermatologic disorders is warranted when Type 1 allergy is suspected, and includes skin prick testing (SPT) or measurement of specific immunoglobulin E (IgE) levels. The utility of these tests for identifying triggers is improved with clinical correlation, especially for contact urticaria, and protein contact dermatitis, which are mixed mechanism diseases. In atopic dermatitis (AD), patients are at risk for development of food allergy, and screening with SPT or IgE may be considered in severe AD, especially to guide early food introduction. Management of food-related AD exacerbations should focus on modifications in skincare before evaluating for allergy.
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Affiliation(s)
- Kanwaljit K Brar
- Fink Pediatric Ambulatory Care Center 160 East 32nd St, 3rd floor New York, NY 10016, USA; Department of Pediatrics, NYU Grossman School of Medicine, Hassenfeld Children's Hospital, 160 East 32nd Street, L3, New York, NY 10016, USA.
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13
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Maruyama N. Components of plant-derived food allergens: Structure, diagnostics, and immunotherapy. Allergol Int 2021; 70:291-302. [PMID: 34092500 DOI: 10.1016/j.alit.2021.05.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 04/19/2021] [Indexed: 12/11/2022] Open
Abstract
A large number of plant-derived food allergen components have been identified to date. Although these allergens are diverse, they often share common structural features such as numerous disulfide bonds or oligomeric structures. Furthermore, some plant-derived food allergen components cross-react with pollen allergens. Since the relationship between allergen components and clinical symptoms has been well characterized, measurements of specific IgE to these components have become useful for the accurate clinical diagnosis and selection of optimal treatment methods for various allergy-related conditions including allergy caused by plant-derived foods. Herein, I have described the types and structures of different plant allergen components and outlined the diagnosis as well as treatment strategies, including those reported recently, for such substances. Furthermore, I have also highlighted the contribution of allergen components to this field.
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Affiliation(s)
- Nobuyuki Maruyama
- Food Quality Design and Development Laboratory, Graduate School of Agriculture, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan.
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