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Bringheli I, Brindisi G, Morelli R, Marchetti L, Cela L, Gravina A, Pastore F, Semeraro A, Cinicola B, Capponi M, Gori A, Pignataro E, Piccioni MG, Zicari AM, Anania C. Kiwifruit's Allergy in Children: What Do We Know? Nutrients 2023; 15:3030. [PMID: 37447357 DOI: 10.3390/nu15133030] [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: 06/08/2023] [Revised: 06/28/2023] [Accepted: 06/30/2023] [Indexed: 07/15/2023] Open
Abstract
Kiwifruit allergy is an emerging pathological condition in both general and pediatric populations with a wide range of symptoms linked to variable molecular patterns, justifying systemic and cross-reactions with other allergens (i.e., latex, pollen, and fruit). Skin prick test (SPT), specific serum IgE (Act d 1, Act d 2, Act d 5, Act d 8, and Act d 10) directed against five out of thirteen molecular allergens described in the literature, and oral test challenge with kiwifruit are available for defining diagnosis. The management is similar to that of other food allergies, mostly based on an elimination diet. Although kiwi allergy has been on the rise in recent years, few studies have evaluated the clinical characteristics and methods of investigating this form of allergy. Data collected so far show severe allergic reaction to be more frequent in children compared to adults. Therefore, the aim of this review is to collect the reported clinical features and the available association with specific molecular patterns of recognition to better understand how to manage these patients and improve daily clinical practice.
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Affiliation(s)
- Ivana Bringheli
- Department of Maternal Infantile and Urological Science, Sapienza University of Rome, 00161 Rome, Italy
| | - Giulia Brindisi
- Department of Maternal Infantile and Urological Science, Sapienza University of Rome, 00161 Rome, Italy
| | - Rebecca Morelli
- Department of Maternal Infantile and Urological Science, Sapienza University of Rome, 00161 Rome, Italy
| | - Lavinia Marchetti
- Department of Maternal Infantile and Urological Science, Sapienza University of Rome, 00161 Rome, Italy
| | - Ludovica Cela
- Department of Maternal Infantile and Urological Science, Sapienza University of Rome, 00161 Rome, Italy
| | - Alessandro Gravina
- Department of Maternal Infantile and Urological Science, Sapienza University of Rome, 00161 Rome, Italy
| | - Francesca Pastore
- Department of Maternal Infantile and Urological Science, Sapienza University of Rome, 00161 Rome, Italy
| | - Antonio Semeraro
- Department of Maternal Infantile and Urological Science, Sapienza University of Rome, 00161 Rome, Italy
| | - Bianca Cinicola
- Department of Maternal Infantile and Urological Science, Sapienza University of Rome, 00161 Rome, Italy
| | - Martina Capponi
- Department of Maternal Infantile and Urological Science, Sapienza University of Rome, 00161 Rome, Italy
| | - Alessandra Gori
- Department of Maternal Infantile and Urological Science, Sapienza University of Rome, 00161 Rome, Italy
| | - Elia Pignataro
- Department of Maternal Infantile and Urological Science, Sapienza University of Rome, 00161 Rome, Italy
| | - Maria Grazia Piccioni
- Department of Maternal Infantile and Urological Science, Sapienza University of Rome, 00161 Rome, Italy
| | - Anna Maria Zicari
- Department of Maternal Infantile and Urological Science, Sapienza University of Rome, 00161 Rome, Italy
| | - Caterina Anania
- Department of Maternal Infantile and Urological Science, Sapienza University of Rome, 00161 Rome, Italy
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Čelakovská J, Čermákova E, Vaňková R, Boudková P, Andrýs C, Krejsek J. Kiwi allergy in atopic dermatitis patients – analysis of specific IgE results in ALEX2 multiplex examination. Latex fruit syndrome. FOOD AGR IMMUNOL 2022. [DOI: 10.1080/09540105.2022.2095985] [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
| | - E. Čermákova
- Department of Medical Biophysic, 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
| | - P. Boudková
- 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
| | - J. Krejsek
- Department of Clinical Immunology and Allergy, Faculty Hospital and Medical Faculty of Charles University, Hradec Králové, Czech Republic
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Bird JA, Leonard S, Groetch M, Assa'ad A, Cianferoni A, Clark A, Crain M, Fausnight T, Fleischer D, Green T, Greenhawt M, Herbert L, Lanser BJ, Mikhail I, Mustafa S, Noone S, Parrish C, Varshney P, Vlieg-Boerstra B, Young MC, Sicherer S, Nowak-Wegrzyn A. Conducting an Oral Food Challenge: An Update to the 2009 Adverse Reactions to Foods Committee Work Group Report. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2021; 8:75-90.e17. [PMID: 31950914 DOI: 10.1016/j.jaip.2019.09.029] [Citation(s) in RCA: 95] [Impact Index Per Article: 31.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 09/27/2019] [Indexed: 11/17/2022]
Abstract
Oral food challenges are an integral part of an allergist's practice and are used to evaluate the presence or absence of allergic reactivity to foods. A work group within the Adverse Reactions to Foods Committee of the American Academy of Allergy, Asthma & Immunology was formed to update a previously published oral food challenge report. The intention of this document was to supplement the previous publication with additional focus on safety, treatment of IgE-mediated allergic reactions, guidance for challenges in infants and adults, psychosocial considerations for children and families participating in an oral food challenge, specific guidance for baked milk or baked egg challenges, masking agents and validated blinding recipes for common food allergens, and recommendations for conducting and interpreting challenges in patients with suspected food protein-induced enterocolitis syndrome. Tables and figures within the report and an extensive online appendix detail age-specific portion sizes, appropriate timing for antihistamine discontinuation, serum and skin test result interpretation, written consents, and instructional handouts that may be used in clinical practice.
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Affiliation(s)
- J Andrew Bird
- University of Texas Southwestern Medical Center, Dallas, Texas.
| | - Stephanie Leonard
- University of California, San Diego, Calif; Rady Children's Hospital, San Diego, Calif
| | - Marion Groetch
- Jaffe Food Allergy Institute, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Amal Assa'ad
- Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | | | | | | | | | - David Fleischer
- Children's Hospital Colorado, Denver, Colo; University of Colorado School of Medicine, Aurora, Colo
| | - Todd Green
- UPMC Children's Hospital of Pittsburgh, Pittsburgh, Pa
| | - Matthew Greenhawt
- Children's Hospital Colorado, Denver, Colo; University of Colorado School of Medicine, Aurora, Colo
| | - Linda Herbert
- Children's National Hospital, Washington, DC; GW School of Medicine and Health Sciences, George Washington University, Washington, DC
| | | | - Irene Mikhail
- Division of Allergy and Immunology, Nationwide Children's Hospital, Columbus, Ohio
| | - Shahzad Mustafa
- Rochester Regional Health, Rochester, NY; University of Rochester School of Medicine and Dentistry, Rochester, NY
| | - Sally Noone
- Jaffe Food Allergy Institute, Icahn School of Medicine at Mount Sinai, New York, NY
| | | | - Pooja Varshney
- Dell Children's Medical Center, Austin, Texas; Dell Medical School at University of Texas Austin, Austin, Texas
| | - Berber Vlieg-Boerstra
- OLVG, Department of Pediatrics, Amsterdam, The Netherlands; Department of Nutrition & Dietetics, Hanze University of Applied Sciences, Groningen, The Netherlands
| | | | - Scott Sicherer
- Jaffe Food Allergy Institute, Icahn School of Medicine at Mount Sinai, New York, NY
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Wang J, Vanga SK, McCusker C, Raghavan V. A Comprehensive Review on Kiwifruit Allergy: Pathogenesis, Diagnosis, Management, and Potential Modification of Allergens Through Processing. Compr Rev Food Sci Food Saf 2019; 18:500-513. [PMID: 33336949 DOI: 10.1111/1541-4337.12426] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 12/27/2018] [Accepted: 01/05/2019] [Indexed: 12/22/2022]
Abstract
Kiwifruit is rich in bioactive components including dietary fibers, carbohydrates, natural sugars, vitamins, minerals, omega-3 fatty acids, and antioxidants. These components are beneficial to boost the human immune system and prevent cancer and heart diseases. However, kiwifruit is emerging as one of the most common elicitors of food allergies worldwide. Kiwifruit allergy results from an abnormal immune response to kiwifruit proteins and occur after consuming this fruit. Symptoms range from the oral allergy syndrome (OAS) to the life-threatening anaphylaxis. Thirteen different allergens have been identified in green kiwifruit and, among these allergens, Act d 1, Act d 2, Act d 8, Act d 11, and Act d 12 are defined as the "major allergens." Act d 1 and Act d 2 are ripening-related allergens and are found in abundance in fully ripe kiwifruit. Structures of several kiwifruit allergens may be altered under high temperatures or strong acidic conditions. This review discusses the pathogenesis, clinical features, and diagnosis of kiwifruit allergy and evaluates food processing methods including thermal, ultrasound, and chemical processing which may be used to reduce the allergenicity of kiwifruit. Management and medical treatments for kiwifruit allergy are also summarized.
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Affiliation(s)
- Jin Wang
- Dept. of Bioresource Engineering, Faculty of Agricultural and Environmental Sciences, McGill Univ., Sainte-Anne-de-Bellevue, Quebec, Canada
| | - Sai Kranthi Vanga
- Dept. of Bioresource Engineering, Faculty of Agricultural and Environmental Sciences, McGill Univ., Sainte-Anne-de-Bellevue, Quebec, Canada
| | - Christine McCusker
- Meakins-Christie Laboratories, Research Inst. of the McGill Univ. Health Centre, Montreal, Quebec, Canada
| | - Vijaya Raghavan
- Dept. of Bioresource Engineering, Faculty of Agricultural and Environmental Sciences, McGill Univ., Sainte-Anne-de-Bellevue, Quebec, Canada
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Remington B, Broekman HCH, Blom WM, Capt A, Crevel RWR, Dimitrov I, Faeste CK, Fernandez-Canton R, Giavi S, Houben GF, Glenn KC, Madsen CB, Kruizinga AK, Constable A. Approaches to assess IgE mediated allergy risks (sensitization and cross-reactivity) from new or modified dietary proteins. Food Chem Toxicol 2017; 112:97-107. [PMID: 29258956 DOI: 10.1016/j.fct.2017.12.025] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2017] [Revised: 11/03/2017] [Accepted: 12/15/2017] [Indexed: 11/16/2022]
Abstract
The development and introduction of new dietary protein sources has the potential to improve food supply sustainability. Understanding the potential allergenicity of these new or modified proteins is crucial to ensure protection of public health. Exposure to new proteins may result in de novo sensitization, with or without clinical allergy, or clinical reactions through cross-reactivity. In this paper we review the potential of current methodologies (in silico, in vitro degradation, in vitro IgE binding, animal models and clinical studies) to address these outcomes for risk assessment purposes for new proteins, and especially to identify and characterise the risk of sensitization for IgE mediated allergy from oral exposure. Existing tools and tests are capable of assessing potential crossreactivity. However, there are few possibilities to assess the hazard due to de novo sensitization. The only methods available are in vivo models, but many limitations exist to use them for assessing risk. We conclude that there is a need to understand which criteria adequately define allergenicity for risk assessment purposes, and from these criteria develop a more suitable battery of tests to distinguish between proteins of high and low allergenicity, which can then be applied to assess new proteins with unknown risks.
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Affiliation(s)
| | - H C H Broekman
- Dep. Dermatology/Allergology, University Medical Centre Utrecht (UMCU), P.O. Box 85500, The Netherlands
| | | | - A Capt
- Bayer SAS, Sophia Antipolis, France
| | - R W R Crevel
- Safety & Environmental Assurance Centre, Unilever, Bedford, UK
| | - I Dimitrov
- Faculty of Pharmacy, Medical University of Sofia, Sofia, 1000 Bulgaria
| | - C K Faeste
- Norwegian Veterinary Institute, Oslo, Norway
| | - R Fernandez-Canton
- Monsanto Europe S.A., Avenue de Tervuren 270-272, B-1150 Brussels, Belgium
| | - S Giavi
- Allergy Department, 2nd Paediatric Clinic, University of Athens, Athens, Greece
| | | | - K C Glenn
- Monsanto Company, 800 N. Lindbergh Boulevard, St. Louis, MO 63017, USA
| | - C B Madsen
- National Food Institute, Technical University of Denmark, Søborg, Denmark
| | | | - A Constable
- Nestec Ltd, P.O. Box 44, CH-1000 Lausanne 26, Switzerland
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Asaumi T, Yanagida N, Sato S, Takahashi K, Ebisawa M. Negative Act d 8 indicates systemic kiwifruit allergy among kiwifruit-sensitized children. Pediatr Allergy Immunol 2017; 28:291-294. [PMID: 28140468 DOI: 10.1111/pai.12700] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- T Asaumi
- Department of Pediatrics, Sagamihara National Hospital, Sagamihara, Kanagawa, Japan
| | - N Yanagida
- Department of Pediatrics, Sagamihara National Hospital, Sagamihara, Kanagawa, Japan
| | - S Sato
- Department of Allergy, Clinical Research Center for Allergy and Rheumatology, Sagamihara National Hospital, Sagamihara, Kanagawa, Japan
| | - K Takahashi
- Department of Pediatrics, Sagamihara National Hospital, Sagamihara, Kanagawa, Japan
| | - M Ebisawa
- Department of Allergy, Clinical Research Center for Allergy and Rheumatology, Sagamihara National Hospital, Sagamihara, Kanagawa, Japan
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Haktanir Abul M, Dereci S, Hacisalihoglu S, Orhan F. Is kiwifruit allergy a matter in kiwifruit-cultivating regions? A population-based study. Pediatr Allergy Immunol 2017; 28:38-43. [PMID: 27732749 DOI: 10.1111/pai.12666] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/09/2016] [Indexed: 11/30/2022]
Abstract
BACKGROUND Although kiwifruit is known as a common cause of food allergy, population-based studies concerning the prevalence of kiwifruit allergy do not exist. We aimed to determine the prevalence and clinical characteristics of IgE-mediated kiwifruit allergy in 6-18-year-old urban schoolchildren in a region where kiwifruit is widely cultivated. METHODS This cross-sectional study recruited 20,800 of the randomly selected 6-18-year-old urban schoolchildren from the Rize city in the eastern Black Sea region of Turkey during 2013. Following a self-administered questionnaire completed by the parents and the child, consenting children were invited for skin prick tests (SPTs) and oral food challenges (OFCs). Children with suspected IgE-mediated kiwifruit were skin prick tested with kiwifruit (commercial allergen and prick-to-prick test with fresh kiwifruit) and a pre-defined panel of allergens (banana, avocado, latex, sesame seed, birch, timothy, hazel, cat, Dermatophagoides pteronyssinus, and Dermatophagoides farinae). All children with a positive SPT to kiwifruit were invited for an open OFC. The prevalence of IgE-mediated kiwifruit allergy was established using open OFCs. RESULTS The response rate to the questionnaire was 75.9% (15783/20800). The estimated prevalence of parental-perceived IgE-mediated kiwifruit allergy was 0.5% (72/15783) (95% CI, 0.39-0.61%). Of the 72 children, 52 (72.2%) were skin tested, and 17 (32.7%) were found to be positive to kiwifruit with both commercial extract and kiwifruit. The most frequently reported symptoms in kiwifruit SPT-positive children were cutaneous (n = 10, 58.8%) followed by gastrointestinal (n = 6, 35.3%) and bronchial (n = 4, 23.5%). Oral symptoms were reported in six (35.3%) children. All children who were kiwifruit positive by SPT were found positive during the oral challenge. The confirmed prevalence of IgE-mediated kiwifruit allergy by means of open OFC in 6-18-year-old urban schoolchildren living in Rize city was 0.10% (95% CI, 0.06-0.16). CONCLUSION Prevalence of parental-perceived and clinically confirmed kiwifruit allergy is not consistent. In contrast to expectations, kiwifruit allergy prevalence was low in a city where it is cultivated and highly consumed.
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Affiliation(s)
- Mehtap Haktanir Abul
- Department of Pediatric Allergy and Immunology, School of Medicine, Karadeniz Technical University, Trabzon, Turkey
| | - Selim Dereci
- Department of Pediatrics, School of Medicine, Recep Tayyip Erdogan University, Rize, Turkey
| | - Sadan Hacisalihoglu
- Department of Pediatrics, School of Medicine, Recep Tayyip Erdogan University, Rize, Turkey
| | - Fazil Orhan
- Department of Pediatric Allergy and Immunology, School of Medicine, Karadeniz Technical University, Trabzon, Turkey
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Garzorz N, Thomas J, Eberlein B, Haferlach C, Ring J, Biedermann T, Schmidt‐Weber C, Eyerich K, Seifert F, Eyerich S. Newly acquired kiwi fruit allergy after bone marrow transplantation from a kiwi‐allergic donor. J Eur Acad Dermatol Venereol 2016; 30:1136-9. [DOI: 10.1111/jdv.13617] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Accepted: 12/23/2015] [Indexed: 11/29/2022]
Affiliation(s)
- N. Garzorz
- Department of Dermatology and Allergy Technical University of Munich Munich Germany
| | - J. Thomas
- ZAUM ‐ Center of Allergy and Environment Member of the German Center for Lung Research (DZL) Technical University of Munich and Helmholtz Center Munich Munich Germany
| | - B. Eberlein
- Department of Dermatology and Allergy Technical University of Munich Munich Germany
| | | | - J. Ring
- Department of Dermatology and Allergy Technical University of Munich Munich Germany
| | - T. Biedermann
- Department of Dermatology and Allergy Technical University of Munich Munich Germany
| | - C. Schmidt‐Weber
- ZAUM ‐ Center of Allergy and Environment Member of the German Center for Lung Research (DZL) Technical University of Munich and Helmholtz Center Munich Munich Germany
| | - K. Eyerich
- Department of Dermatology and Allergy Technical University of Munich Munich Germany
| | - F. Seifert
- Department of Dermatology and Allergy Technical University of Munich Munich Germany
| | - S. Eyerich
- ZAUM ‐ Center of Allergy and Environment Member of the German Center for Lung Research (DZL) Technical University of Munich and Helmholtz Center Munich Munich Germany
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The Incidence and Clinical Characteristics of IgE-Mediated Hazelnut Allergy in Children Living in the Eastern Black Sea Region of Turkey. PEDIATRIC ALLERGY, IMMUNOLOGY, AND PULMONOLOGY 2016. [DOI: 10.1089/ped.2015.0569] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Kiwifruit Allergy in Children: Characterization of Main Allergens and Patterns of Recognition. CHILDREN-BASEL 2015; 2:424-38. [PMID: 27417374 PMCID: PMC4928771 DOI: 10.3390/children2040424] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Revised: 09/24/2015] [Accepted: 10/02/2015] [Indexed: 11/17/2022]
Abstract
Kiwifruit allergy has been described mostly in the adult population, but immunoglobulin (Ig)E-mediated allergic reactions to kiwifruit appear to be occurring more frequently in children. To date, 13 allergens from kiwifruit have been identified. Our aim was to identify kiwifruit allergens in a kiwifruit allergic-pediatric population, describing clinical manifestations and patterns of recognition. Twenty-four children were included. Diagnosis of kiwifruit allergy was based on compatible clinical manifestations and demonstration of specific IgE by skin prick test (SPT) and/or serum-specific IgE determination. SDS-PAGE and immunoblotting were performed with kiwifruit extract, and proteins of interest were further analyzed by mass spectrometry/mass spectrometry. For component-resolved in vitro diagnosis, sera of kiwifruit-allergic patients were analyzed by an allergen microarray assay. Act d 1 and Act d 2 were bound by IgE from 15 of 24 children. Two children with systemic manifestations recognized a protein of 15 kDa, homologous to Act d 5. Act d 1 was the allergen with the highest frequency of recognition on microarray chip, followed by Act d 2 and Act d 8. Kiwifruit allergic children develop systemic reactions most frequently following ingestion compared to adults. Act d 1 and Act d 2 are major allergens in the pediatric age group.
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Ozturk AB, Özyiğit LP. Familial kiwi fruit allergy: a case report. Allergol Int 2015; 64:190-1. [PMID: 25838097 DOI: 10.1016/j.alit.2014.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Revised: 08/17/2014] [Accepted: 09/08/2014] [Indexed: 11/27/2022] Open
Affiliation(s)
- Ayse Bilge Ozturk
- Allergy and Immunology Department, Koç University Hospital, Istanbul, Turkey.
| | - Leyla Pur Özyiğit
- Allergy and Immunology Department, American Hospital, Istanbul, Turkey
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Uberti F, Peñas E, Manzoni Y, di Lorenzo C, Ballabio C, Fiocchi A, Terracciano L, Restani P. Molecular characterization of allergens in raw and processed kiwifruit. Pediatr Allergy Immunol 2015; 26:139-44. [PMID: 25640609 DOI: 10.1111/pai.12345] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/27/2015] [Indexed: 11/30/2022]
Abstract
BACKGROUND The prevalence of allergy to kiwifruit is increasing in Europe since the last two decades. Different proteins have been identified as kiwifruit allergens; even though with geographic differences, Act d 1, a cysteine protease protein of 30 kDa, and Act d 2, a thaumatin-like protein of 24 kDa, are normally considered the most important. The aim of this study was (i) to identify at molecular level the sensitization pattern in a group of well-characterized patients allergic to kiwifruit and (ii) to assess the role of technological treatments on kiwifruit allergenic potential. METHODS The differences in the pattern of antigenicity between fresh and processed kiwifruit were evaluated by both immunoelectrophoretic techniques and clinical tests. RESULTS In the group of patients included in this study, three proteins were identified as major allergens in fresh kiwifruit, as the specific sensitization was present in ≥50% of the subjects. These proteins corresponded to actinidin (Act d 1), pectin methyl aldolase (Act d 6), and thaumatin-like protein (Act d 2). Kiwellin (Act d 5) and proteins of Bet v 1 family (Act d 8/act d 11) were also recognized as minor allergens. Immunoreactivity was totally eliminated by industrial treatments used for the production of kiwifruit strained derivative. CONCLUSIONS In this group of allergic children, the technological treatments used in the production of kiwifruit strained product reduced drastically the allergenic potential of kiwifruit.
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Affiliation(s)
- Francesca Uberti
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milan, Italy
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Cavic M, Grozdanovic MM, Bajic A, Jankovic R, Andjus PR, Gavrovic-Jankulovic M. The effect of kiwifruit (Actinidia deliciosa) cysteine protease actinidin on the occludin tight junction network in T84 intestinal epithelial cells. Food Chem Toxicol 2014; 72:61-8. [PMID: 25042511 DOI: 10.1016/j.fct.2014.07.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Revised: 04/30/2014] [Accepted: 07/07/2014] [Indexed: 12/14/2022]
Abstract
Actinidin, a kiwifruit cysteine protease, is a marker allergen for genuine sensitization to this food allergen source. Inhalatory cysteine proteases have the capacity for disruption of tight junctions (TJs) enhancing the permeability of the bronchial epithelium. No such properties have been reported for allergenic food proteases so far. The aim was to determine the effect of actinidin on the integrity of T84 monolayers by evaluating its action on the TJ protein occludin. Immunoblot and immunofluorescence were employed for the detection of occludin protein alterations. Gene expression was evaluated by RT-PCR. Breach of occludin network was assessed by measuring transepithelial resistance, blue dextran leakage and passage of allergens from the apical to basolateral compartment. Actinidin exerted direct proteolytic cleavage of occludin; no alteration of occludin gene expression was detected. There was a reduction of occludin staining upon actinidin treatment as a consequence of its degradation and dispersion within the membrane. There was an increase in permeability of the T84 monolayer resulting in reduced transepithelial resistance, blue dextran leakage and passage of allergens actinidin and thaumatin-like protein from the apical to basolateral compartment. Opening of TJs by actinidin may increase intestinal permeability and contribute to the process of sensitization in kiwifruit allergy.
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Affiliation(s)
- Milena Cavic
- Department of Experimental Oncology, Institute for Oncology and Radiology of Serbia, Pasterova 14, 11000 Belgrade, Serbia
| | - Milica M Grozdanovic
- Department of Biochemistry, Faculty of Chemistry, University of Belgrade, Studentski trg 16, 11000 Belgrade, Serbia
| | - Aleksandar Bajic
- Center for Laser Microscopy, Faculty of Biology, University of Belgrade, Studentski trg 3, 11000 Belgrade, Serbia
| | - Radmila Jankovic
- Department of Experimental Oncology, Institute for Oncology and Radiology of Serbia, Pasterova 14, 11000 Belgrade, Serbia
| | - Pavle R Andjus
- Center for Laser Microscopy, Faculty of Biology, University of Belgrade, Studentski trg 3, 11000 Belgrade, Serbia
| | - Marija Gavrovic-Jankulovic
- Department of Biochemistry, Faculty of Chemistry, University of Belgrade, Studentski trg 16, 11000 Belgrade, Serbia.
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Sirvent S, Cantó B, Cuesta-Herranz J, Gómez F, Blanca N, Canto G, Blanca M, Rodríguez R, Villalba M, Palomares O. Act d 12 and Act d 13: Two novel, masked, relevant allergens in kiwifruit seeds. J Allergy Clin Immunol 2014; 133:1765-7.e4. [DOI: 10.1016/j.jaci.2014.01.035] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Revised: 01/28/2014] [Accepted: 01/29/2014] [Indexed: 12/01/2022]
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Celakovska J, Bukač J, Ettler K. Food hypersensitivity reactions in atopic dermatitis patients and analysis of contomitant diseases. FOOD AGR IMMUNOL 2014. [DOI: 10.1080/09540105.2014.900531] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Vieira T, Cunha L, Neves E, Falcão H. Diagnostic usefulness of component-resolved diagnosis by skin prick tests and specific IgE to single allergen components in children with allergy to fruits and vegetables. Allergol Immunopathol (Madr) 2014; 42:127-35. [PMID: 23266139 DOI: 10.1016/j.aller.2012.09.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2012] [Revised: 09/27/2012] [Accepted: 09/28/2012] [Indexed: 10/27/2022]
Abstract
INTRODUCTION The accurate identification of sensitizing proteins in patients allergic to plant-derived foods is extremely important, allowing a correct dietary advice. We aimed to evaluate the diagnostic usefulness of skin prick tests (SPT) and specific IgE (sIgE) with single molecular allergen components in children with allergy to fruits and vegetables. METHODS Twenty children underwent SPT with a palm profilin (Pho d 2, 50 μg/mL); a Mal d 1-enriched apple extract (2 μg/mL) (PR-10 allergen); and a peach Lipid Transfer Protein (LTP) (Pru p 3, 30 μg/mL). Detection of sIgE to rBet v 1, rBet v 2, Phl p 12 and Pru p 3 was also measured. RESULTS Allergy to multiple fruits and vegetables was observed in 11 (55%) children. Sensitization by SPT to Pho d 2, Mal d 1, and Pru p 3 occurred in 5, 7, and 8 cases, respectively. LTP sensitization appeared to be associated with peach allergy but not with severe reactions, and profilins sensitization to melon and tomato allergy. Kiwi sensitization (12 cases), the plant-derived food that caused more allergic reactions, seemed mostly species-specific. The concordance of SPT extracts and sIgE to the corresponding pan-allergens was high for profilins (k=0.857) and LTP (k=0.706), while for PR-10 allergens it was absent (k=0.079). CONCLUSIONS Pan-allergen sensitization in children with allergy to fruits and vegetables was common and often multiple. There was no association of severe reactions to LTP sensitization. The introduction of routine SPT to pan-allergens can be a simple and feasible way of improving diagnostic and therapeutic efficacy.
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Ballmer-Weber BK, Hoffmann-Sommergruber K. Update: molekulare Diagnose der Gemüse- und Fruchtallergie. ALLERGO JOURNAL 2014. [DOI: 10.1007/s15007-014-0468-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Palazzo P, Tuppo L, Giangrieco I, Bernardi ML, Rafaiani C, Crescenzo R, Tamburrini M, Zuzzi S, Alessandri C, Mari A, Ciardiello MA. Prevalence and peculiarities of IgE reactivity to kiwifruit pectin methylesterase and its inhibitor, Act d 7 and Act d 6, in subjects allergic to kiwifruit. Food Res Int 2013. [DOI: 10.1016/j.foodres.2013.03.041] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Maddumage R, Nieuwenhuizen NJ, Bulley SM, Cooney JM, Green SA, Atkinson RG. Diversity and relative levels of actinidin, kiwellin, and thaumatin-like allergens in 15 varieties of kiwifruit (Actinidia). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:728-739. [PMID: 23289429 DOI: 10.1021/jf304289f] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
In the last 30 years the incidence of kiwifruit allergy has increased with the three major allergenic proteins being identified as actinidin, kiwellin, and thaumatin-like protein (TLP). We report wide variation in the levels of actinidin and TLP in 15 kiwifruit varieties from the four most widely cultivated Actinidia species. Acidic and basic isoforms of actinidin were identified in Actinidia deliciosa 'Hayward' and Actinidia arguta 'Hortgem Tahi', while only a basic isoform of actinidin was identified in Actinidia chinensis 'Hort16A'. One isoform each of kiwellin and TLP were identified in ripe fruit. The cysteine protease activity of actinidin correlated with protein levels in all species except A. arguta. Protein modeling suggested that modifications to the S2 binding pocket influenced substrate specificity of the A. arguta enzyme. Our results indicate that care is necessary when extrapolating allergenicity results from single varieties to others within the same and between different Actinidia species.
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Affiliation(s)
- Ratnasiri Maddumage
- The New Zealand Institute for Plant & Food Research Limited (PFR), Auckland, New Zealand
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Lee JM, Jeon SA, Lee SY. Clinical characteristics and diagnostic value of specific immunoglobulin E antibodies in children with kiwi fruit allergy. ALLERGY ASTHMA & RESPIRATORY DISEASE 2013. [DOI: 10.4168/aard.2013.1.1.73] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Jeong-Min Lee
- Department of Pediatrics, Ajou University School of Medicine, Suwon, Korea
| | - Se-Ah Jeon
- Department of Pediatrics, Ajou University School of Medicine, Suwon, Korea
| | - Soo-Young Lee
- Department of Pediatrics, Ajou University School of Medicine, Suwon, Korea
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Abstract
While kiwifruit has a high nutritive and health value, a small proportion of the world's population appears to be allergic to the fruit. IgE-mediated kiwifruit allergy is often associated with birch and grass pollinosis as well as with latex allergy. Isolated allergy to kiwifruit is also relatively common and often severe. Eleven green kiwifruit (Actinidia deliciosa cv. Hayward) allergens recognized to date are termed as Act d 1 through Act d 11. Bet v 1 homologue (Act d 8) and profilin (Act d 9) are important allergens in polysensitized subjects, whereas actinidin (Act d 1) is important in kiwifruit monosensitized subjects. Differences in allergenicity have been found among kiwifruit cultivars. Allergy sufferers might benefit from the selection and breeding of low-allergenic kiwifruit cultivars.
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Affiliation(s)
- Merima Bublin
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria.
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Le TM, Bublin M, Breiteneder H, Fernández-Rivas M, Asero R, Ballmer-Weber B, Barreales L, Bures P, Belohlavkova S, de Blay F, Clausen M, Dubakiene R, Gislason D, van Hoffen E, Jedrzejczak-Czechowicz M, Kowalski ML, Kralimarkova T, Lidholm J, DeWitt AM, Mills CEN, Papadopoulos NG, Popov T, Purohit A, van Ree R, Seneviratne S, Sinaniotis A, Summers C, Vázquez-Cortés S, Vieths S, Vogel L, Hoffmann-Sommergruber K, Knulst AC. Kiwifruit allergy across Europe: clinical manifestation and IgE recognition patterns to kiwifruit allergens. J Allergy Clin Immunol 2012; 131:164-71. [PMID: 23141741 DOI: 10.1016/j.jaci.2012.09.009] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2012] [Revised: 08/22/2012] [Accepted: 09/06/2012] [Indexed: 10/27/2022]
Abstract
BACKGROUND Kiwifruit is a common cause of food allergy. Symptoms range from mild to anaphylactic reactions. OBJECTIVE We sought to elucidate geographic differences across Europe regarding clinical patterns and sensitization to kiwifruit allergens. Factors associated with the severity of kiwifruit allergy were identified, and the diagnostic performance of specific kiwifruit allergens was investigated. METHODS This study was part of EuroPrevall, a multicenter European study investigating several aspects of food allergy. Three hundred eleven patients with kiwifruit allergy from 12 countries representing 4 climatic regions were included. Specific IgE to 6 allergens (Act d 1, Act d 2, Act d 5, Act d 8, Act d 9, and Act d 10) and kiwifruit extract were tested by using ImmunoCAP. RESULTS Patients from Iceland were mainly sensitized to Act d 1 (32%), those from western/central and eastern Europe were mainly sensitized to Act d 8 (pathogenesis-related class 10 protein, 58% and 44%, respectively), and those from southern Europe were mainly sensitized to Act d 9 (profilin, 31%) and Act d 10 (nonspecific lipid transfer protein, 22%). Sensitization to Act d 1 and living in Iceland were independently and significantly associated with severe kiwifruit allergy (odds ratio, 3.98 [P = .003] and 5.60 [P < .001], respectively). Using a panel of 6 kiwifruit allergens in ImmunoCAP increased the diagnostic sensitivity to 65% compared with 20% for skin prick tests and 46% ImmunoCAP using kiwi extract. CONCLUSION Kiwifruit allergen sensitization patterns differ across Europe. The use of specific kiwifruit allergens improved the diagnostic performance compared with kiwifruit extract. Sensitization to Act d 1 and living in Iceland are strong risk factors for severe kiwifruit allergy.
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Affiliation(s)
- Thuy-My Le
- Department of Dermatology/Allergology, University Medical Center Utrecht, Utrecht, The Netherlands.
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Flores E, Cervera L, Sanz M, Diaz-Perales A, Fernández J. Plant Food Allergy in Patients with Pollinosis from the Mediterranean Area. Int Arch Allergy Immunol 2012; 159:346-54. [DOI: 10.1159/000338282] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2011] [Accepted: 03/16/2012] [Indexed: 01/15/2023] Open
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Grozdanovic M, Popovic M, Polovic N, Burazer L, Vuckovic O, Atanaskovic-Markovic M, Lindner B, Petersen A, Gavrovic-Jankulovic M. Evaluation of IgE reactivity of active and thermally inactivated actinidin, a biomarker of kiwifruit allergy. Food Chem Toxicol 2011; 50:1013-8. [PMID: 22227218 DOI: 10.1016/j.fct.2011.12.030] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2011] [Revised: 12/13/2011] [Accepted: 12/19/2011] [Indexed: 10/14/2022]
Abstract
Actinidin, an abundant cysteine protease from kiwifruit, is a specific biomarker of isolated allergy to kiwifruit. This study evaluates the IgE-binding properties of biologically active and thermally inactivated actinidin. Employing two different activity assays (caseinolytic assay and zymogram with gelatin) we showed that actinidin obtained from kiwifruit extract under native conditions represents a mixture of inactive and active enzyme. The structural integrity of actinidin was confirmed by SDS-PAGE, Edman degradation, mass fingerprint and Western blot with polyclonal antibodies. Although it was capable of inducing positive skin prick test reactions, we failed to detect IgE reactivity of active actinidin in Western blot with patient sera. Thermally inactivated actinidin exhibited IgE reactivity both in vivo and in vitro, indicating that heat processed kiwifruit products may induce clinical reactivity. These findings imply that apart from the allergenic epitopes on its surface, actinidin also contains hidden epitopes inside the protein which become accessible to IgE upon thermal treatment.
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Affiliation(s)
- Milica Grozdanovic
- Department of Biochemistry, Faculty of Chemistry, University of Belgrade, and Department of Allergology and Pulmonology, University Children's Hospital, Belgrade 11000, Serbia
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Abstract
PURPOSE OF REVIEW The purpose of this paper is to review and discuss studies on molecular diagnosis in fruit and vegetable allergy. RECENT FINDINGS Celeriac, carrot and tomato are the most prevalent allergenic vegetables, whereas fruit allergy is mainly induced by apple, peach and kiwi. Component-resolved molecular diagnosis has been recently applied in two well-defined patient groups with kiwifruit and celeriac allergy, respectively. In kiwifruit allergy Act d 1 and Act d 3 were identified as potential marker allergens for severe symptoms. For celeriac allergy, however, such markers are still missing. In both studies component-resolved molecular diagnosis approach improved in particular sensitivity compared to extract-based diagnostic test assays. SUMMARY Food and vegetable allergy can be acquired both via a direct sensitization over the gastrointestinal tract and via a primary sensitization to pollen or latex. The diagnosis of fruit and vegetable allergy in birch pollen-sensitized patients should not be excluded on a negative IgE testing to extracts. Bet v 1-related allergens are often under-represented in extracts. Few recombinant allergens derived from fruits and vegetables are nowadays commercially available and facilitate diagnosis of fruit and vegetable allergies.
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Le TM, Fritsche P, Bublin M, Oberhuber C, Bulley S, van Hoffen E, Ballmer-Weber BK, Knulst AC, Hoffmann-Sommergruber K. Differences in the allergenicity of 6 different kiwifruit cultivars analyzed by prick-to-prick testing, open food challenges, and ELISA. J Allergy Clin Immunol 2011; 127:677-9.e1-2. [DOI: 10.1016/j.jaci.2010.10.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2010] [Revised: 09/29/2010] [Accepted: 10/07/2010] [Indexed: 10/18/2022]
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Ruëff F, Friedl T, Arnold A, Kramer M, Przybilla B. Release of mast cell tryptase into saliva: a tool to diagnose food allergy by a mucosal challenge test? Int Arch Allergy Immunol 2011; 155:282-8. [PMID: 21293148 DOI: 10.1159/000320492] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2009] [Accepted: 08/13/2010] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Our aim was to examine whether measurement of the saliva mast cell tryptase (MCT) concentrations before and after a mucosal challenge test with the offending food would be helpful in diagnosing food allergy. METHODS We performed a retrospective analysis of 44 food challenge tests performed in 38 patients between 2006 and 2009. Patients with a suspected history of food allergy chewed the food until they developed symptoms or until the amount of time known from the patients' history to usually be required for the provocation of symptoms had passed. In 5 patients, saliva samples for the measurement of MCT were collected at minutes 0, 1, 4, 8, 11, and 16 after the first onset of symptoms. The remainder of the patients only had samples taken before chewing and 4 min after the end of the test period. RESULTS During repeated measurements, MCT peaked about 4 min after the onset of symptoms (p = 0.028). During 33 of the 44 tests (75.0%), we observed oral symptoms during testing; after 25 of the 33 (75.8%) tests evoking symptoms, the saliva MCT concentration increased. The MCT increase was negative in all other tests where no oral symptoms could be provoked. CONCLUSIONS The measurement of saliva MCT 4 min after the onset of symptoms may be helpful to diagnose food allergy. Because of numerous confounding variables, however, a negative saliva MCT increase does not exclude food allergy.
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Affiliation(s)
- Franziska Ruëff
- Klinik und Poliklinik für Dermatologie und Allergologie, Ludwig-Maximilians-Universität, München, Deutschland.
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Popovic MM, Milovanovic M, Burazer L, Vuckovic O, Hoffmann-Sommergruber K, Knulst AC, Lindner B, Petersen A, Jankov R, Gavrovic-Jankulovic M. Cysteine proteinase inhibitor Act d 4 is a functional allergen contributing to the clinical symptoms of kiwifruit allergy. Mol Nutr Food Res 2010; 54:373-80. [DOI: 10.1002/mnfr.200900035] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Bublin M, Pfister M, Radauer C, Oberhuber C, Bulley S, Dewitt AM, Lidholm J, Reese G, Vieths S, Breiteneder H, Hoffmann-Sommergruber K, Ballmer-Weber BK. Component-resolved diagnosis of kiwifruit allergy with purified natural and recombinant kiwifruit allergens. J Allergy Clin Immunol 2010; 125:687-94, 694.e1. [PMID: 20061012 DOI: 10.1016/j.jaci.2009.10.017] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2009] [Revised: 10/14/2009] [Accepted: 10/15/2009] [Indexed: 10/20/2022]
Abstract
BACKGROUND Kiwifruit is one of the most common causes of food allergic reactions. Component-resolved diagnostics may enable significantly improved detection of sensitization to kiwifruit. OBJECTIVE To evaluate the use of individual allergens for component-resolved in vitro diagnosis of kiwifruit allergy. METHODS Thirty patients with a positive double-blind placebo-controlled food challenge to kiwifruit, 10 atopic subjects with negative open provocation to kiwifruit, and 5 nonatopic subjects were enrolled in the study. Specific IgE to 7 individual allergens (nAct d 1-5 and rAct d 8-9) and allergen extracts was measured by ImmunoCAP. RESULTS The diagnostic sensitivities of the commercial extract and of the sum of single allergens were 17% and 77%, respectively, whereas diagnostic specificities were 100% and 30%. A combination of the kiwi allergens Act d 1, Act d 2, Act d 4, and Act d 5 gave a diagnostic sensitivity of 40%, whereas diagnostic specificity remained high (90%). Exclusion of the Bet v 1 homolog recombinant (r) Act d 8 and profilin rAct d 9 from this allergen panel reduced sensitivity to 50% but increased specificity to 40%. Kiwifruit-monosensitized patients reacted more frequently (P < .001) with Act d 1 than polysensitized patients, whereas the latter group reacted more frequently with rAct d 8 (P = .004). CONCLUSION Use of single kiwifruit allergen ImmunoCAP increases the quantitative test performance and diagnostic sensitivity compared with the commercial extract. Bet v 1 homolog and profilin are important allergens in pollen-related kiwifruit allergy, whereas actinidin is important in monoallergy to kiwifruit, in which symptoms are often more severe.
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Affiliation(s)
- Merima Bublin
- Department of Pathophysiology, Medical University of Vienna, Vienna, Austria
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Orhan F, Karakas T, Cakir M, Aksoy A, Baki A, Gedik Y. Prevalence of immunoglobulin E-mediated food allergy in 6-9-year-old urban schoolchildren in the eastern Black Sea region of Turkey. Clin Exp Allergy 2009; 39:1027-35. [PMID: 19400894 DOI: 10.1111/j.1365-2222.2009.03263.x] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND The prevalence of adverse reactions to food in childhood in Turkey is not known. OBJECTIVE We aimed to investigate the prevalence and characteristics of IgE-mediated food allergies (FAs) in 6-9-year-old urban schoolchildren. METHODS This cross-sectional study recruited 3500 of the randomly selected 6-9-year-old urban schoolchildren from the eastern Black Sea region of Turkey during 2006. Following a self-administered questionnaire completed by the parents and the child, consenting children were invited for skin prick tests (SPTs) and oral food challenges. Children with suspected IgE-mediated FA were skin prick tested with a predefined panel of food allergens (milk, hen's egg, soy, wheat, peanut, fish, and hazelnut), aeroallergens (Dermatophagoides pteronyssinus, Dermatophagoides farinae, cat, dog, Alternaria, grass pollen mix, weed pollen mix, and tree pollen mix), and food allergens reported in the questionnaire. All children with a positive SPT to any food were invited for a double-blind, placebo-controlled food challenge (DBPCFC). The prevalence of IgE-mediated FA was established using DBPCFCs. RESULTS The response rate to the questionnaire was 78.2% (2739/3500). The estimated prevalence of parental-reported IgE-mediated FA was 5.7% (156/2739) [95% confidence interval (CI), 4.83-6.57%]. The rate of sensitization to the food allergens was 33.1% (48/145) in the parental-reported group. The confirmed prevalence of IgE-mediated FA by means of DBPCFC in 6-9-year-old urban schoolchildren living in the eastern Black Sea region of Turkey was 0.80% (22/2739) (95% CI, 0.47-1.13%). The most common allergenic foods were beef (31.8%), cow's milk (18.1%), cocoa (18.1%), hen's egg (13.6%), and kiwi (13.6%). CONCLUSIONS The rate of reported IgE-mediated FA was significantly higher than clinically confirmed FA by means of DBPCFC (odds ratio, 7.46; 95% CI, 4.67-12.01; P<0.0001). The order of allergenic foods was different and somewhat unique to the eastern Black Sea region of Turkey when compared with western countries.
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Affiliation(s)
- F Orhan
- Department of Pediatrics, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey.
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Oberhuber C, Bulley SM, Ballmer-Weber BK, Bublin M, Gaier S, DeWitt AM, Briza P, Hofstetter G, Lidholm J, Vieths S, Hoffmann-Sommergruber K. Characterization of Bet v 1-related allergens from kiwifruit relevant for patients with combined kiwifruit and birch pollen allergy. Mol Nutr Food Res 2009; 52 Suppl 2:S230-40. [PMID: 18925615 DOI: 10.1002/mnfr.200800146] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Allergy to kiwifruit appears to have become more common in Europe and elsewhere during the past several years. Seven allergens have been identified from kiwifruit so far, with actinidin, kiwellin and the thaumatin-like protein as the most relevant ones. In contrast to other fruits, no Bet v 1 homologues were characterized from kiwifruit so far. We cloned, purified, and characterized recombinant Bet v 1-homologous allergens from green (Actinidia deliciosa, Act d 8) and gold (Actinidia chinensis, Act c 8) kiwifruit, and confirmed the presence of its natural counterpart by inhibition assays. Well-characterized recombinant Act d 8 and Act c 8 were recognized by birch pollen/kiwifruit (confirmed by double-blind placebo-controlled food challenge) allergic patients in IgE immunoblots and ELISA experiments. The present data point out that Bet v 1 homologues are allergens in kiwifruit and of relevance for patients sensitized to tree pollen and kiwifruit, and might have been neglected so far due to low abundance in the conventional extracts used for diagnosis.
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Bublin M, Radauer C, Knulst A, Wagner S, Scheiner O, Mackie AR, Mills ENC, Breiteneder H. Effects of gastrointestinal digestion and heating on the allergenicity of the kiwi allergens Act d 1, actinidin, and Act d 2, a thaumatin-like protein. Mol Nutr Food Res 2008; 52:1130-9. [DOI: 10.1002/mnfr.200700167] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Palacin A, Quirce S, Sánchez-Monge R, Fernández-Nieto M, Varela J, Sastre J, Salcedo G. Allergy to kiwi in patients with baker's asthma: identification of potential cross-reactive allergens. Ann Allergy Asthma Immunol 2008; 101:200-5. [PMID: 18727477 DOI: 10.1016/s1081-1206(10)60210-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
BACKGROUND Baker's asthma is a frequent IgE-mediated occupational disorder mainly provoked by inhalation of cereal flour. Allergy to kiwifruit has being increasingly reported in the past few years. No association between both allergic disorders has been described so far. METHODS Twenty patients with occupational asthma caused by wheat flour inhalation were studied. Kiwi allergens Act d 1 and Act d 2 were purified by cation-exchange chromatography. Wheat, rye, and kiwi extracts, purified kiwi allergens, and model plant glycoproteins were analyzed by IgE immunodetection, enzyme-linked immunosorbent assay (ELISA), and inhibition ELISAs. RESULTS Kiwifruit ingestion elicited oral allergy syndrome in 7 of the 20 patients (35%) with baker's asthma. Positive specific IgE and skin prick test responses to this fruit were found in all these kiwi allergic patients, and IgE to Act d 1 and Act d 2 was detected in 57% and 43%, respectively, of the corresponding sera. Actinidin Act d 1 and bromelain (harboring cross-reactive carbohydrate determinants) reached above 50% inhibition of the IgE binding to wheat and/or kiwi extracts. CONCLUSIONS A potential association between respiratory allergy to cereal flour and allergy to kiwifruit has been disclosed. Cross-reactive carbohydrate determinants and thiol-proteaseshomologous to Act d 1 are responsible for wheat-kiwi crossreactivity in some patients.
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Affiliation(s)
- Arantxa Palacin
- Unidad de Bioquímica, Departamento de Biotecnología, E.T.S. Ingenieros Agrónomos, UPM, Madrid, Spain
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Gavrović-Jankulović M, Spasić M, Ćirković Veličković T, Stojanović M, Inić-Kanada A, Dimitrijević L, Lindner B, Petersen A, Becker WM, Jankov RM. Quantification of the thaumatin-like kiwi allergen by a monoclonal antibody-based ELISA. Mol Nutr Food Res 2008; 52:701-7. [DOI: 10.1002/mnfr.200700286] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Tuppo L, Giangrieco I, Palazzo P, Bernardi ML, Scala E, Carratore V, Tamburrini M, Mari A, Ciardiello MA. Kiwellin, a modular protein from green and gold kiwi fruits: evidence of in vivo and in vitro processing and IgE binding. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2008; 56:3812-7. [PMID: 18442249 DOI: 10.1021/jf703620m] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Kiwellin, an allergenic protein formerly isolated from green kiwi fruit, has been identified as the most abundant component of the gold kiwi species. A protein named KiTH, showing a 20 kDa band on reducing SDS-PAGE and 100% identity with the C-terminal region of kiwellin, has been identified in the extract of the ripe green species. In vitro treatment of purified kiwellin with the protease actinidin from green kiwi fruit originated KiTH and kissper, a recently described pore-forming peptide. Primary structure analysis and experimental evidence suggest that kiwellin is a modular protein with two domains. It may undergo in vivo proteolytic processing by actinidin, thus producing KiTH and kissper. When probed with sera recognizing kiwellin from green kiwi fruit, KiTH showed IgE binding, with reactivity levels sometimes different from those of kiwellin. The IgE-binding capacity of kiwellin from gold kiwi fruit appears to be similar to that of the green species.
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Affiliation(s)
- Lisa Tuppo
- Institute of Protein Biochemistry, CNR, Via Pietro Castellino 111, I-80131 Napoli, Italy
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Lucas JSA, Nieuwenhuizen NJ, Atkinson RG, Macrae EA, Cochrane SA, Warner JO, Hourihane JO. Kiwifruit allergy: actinidin is not a major allergen in the United Kingdom. Clin Exp Allergy 2007; 37:1340-8. [PMID: 17845415 DOI: 10.1111/j.1365-2222.2007.02776.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Actinidin has previously been reported as the major allergen in kiwifruit. Objectives To investigate the relevance of actinidin in a well-characterized population of UK patients with kiwifruit allergy. METHODS To identify the allergens in kiwifruit, using Western blots, we examined the IgE-binding patterns of 76 patients with a history of kiwifruit allergy, 23 of who had had a positive double-blind, placebo-controlled food challenge. In addition, IgE binding to purified native actinidin was studied in 30 patients, and to acidic and basic isoforms of recombinant actinidin in five patients. Inhibition of IgE binding to kiwifruit protein extract by purified native actinidin was investigated by both inhibition immunoblots and inhibition ELISAs using pooled sera. RESULTS Twelve protein bands in kiwifruit protein extract were bound by IgE. A protein band with a molecular weight of 38 kDa was the major allergen recognized by 59% of the population. IgE did not bind to actinidin in the kiwifruit protein extract, or to purified native or recombinant forms of actinidin during Western blotting. Pooled sera bound to kiwifruit protein extract but not purified actinidin on ELISA, and pre-incubating sera with actinidin did not inhibit IgE binding to kiwifruit protein extract on immunoblot or ELISA. CONCLUSION A novel 38 kDa protein, not actinidin, is the major allergen in this large study population. Identification of major allergens in one patient group is therefore not necessarily reproducible in another; therefore, major allergens should not be defined until there is a sufficient body of data from diverse geographical and cultural populations.
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Affiliation(s)
- J S A Lucas
- Division of Infection Inflammation and Repair, University of Southampton, Southampton, UK.
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Taguchi H, Watanabe S, Hirao T, Akiyama H, Sakai S, Watanabe T, Matsuda R, Urisu A, Maitani T. Specific detection of potentially allergenic kiwifruit in foods using polymerase chain reaction. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2007; 55:1649-55. [PMID: 17288438 DOI: 10.1021/jf0624446] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Kiwifruit (Actinidia deliciosa and Actinidia chinensis) is allergenic to sensitive patients, and, under Japanese regulations, it is one of the food items that are recommended to be declared on food labeling as much as possible. To develop PCR-based methods for the detection of trace amounts of kiwifruit in foods, two primer pairs targeting the ITS-1 region of the Actinidia spp. were designed using PCR simulation software. On the basis of the known distribution of a major kiwifruit allergen (actinidin) within the Actinidia spp., as well as of reports on clinical and immunological cross-reactivities, one of the primer pairs was designed to detect all Actinidia spp. and the other to detect commercially grown Actinidia spp. (i.e., kiwifruit, Actinidia arguta, and their interspecific hybrids) except for Actinidia polygama. The specificity of the developed methods using the designed primer pairs was verified by performing PCR experiments on 8 Actinidia spp. and 26 other plants including fruits. The methods were considered to be specific enough to yield target-size products only from the target Actinidia spp. and to detect no target-size products from nontarget species. The methods were sensitive enough to detect 5-50 fg of Actinidia spp. DNA spiked in 50 ng of salmon testis DNA used as a carrier (1-10 ppm of kiwifruit DNA) and 1700 ppm (w/w) of fresh kiwifruit puree spiked in a commercial plain yogurt (corresponding to ca. 10 ppm of kiwifruit protein). These methods would be expected to be useful in the detection of hidden kiwifruit and its related species in processed foods.
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Affiliation(s)
- Hiromu Taguchi
- Somatech Center, House Foods Corporation, 1-4 Takanodai, Yotsukaido, Chiba 284-0033, Japan.
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Chen L, Lucas JS, Hourihane JO, Lindemann J, Taylor SL, Goodman RE. Evaluation of IgE binding to proteins of hardy (Actinidia arguta), gold (Actinidia chinensis) and green (Actinidia deliciosa) kiwifruits and processed hardy kiwifruit concentrate, using sera of individuals with food allergies to green kiwifruit. Food Chem Toxicol 2006; 44:1100-7. [PMID: 16481086 DOI: 10.1016/j.fct.2006.01.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2005] [Revised: 12/14/2005] [Accepted: 01/05/2006] [Indexed: 10/25/2022]
Abstract
BACKGROUND Allergy to green kiwifruit has become common since the fruit was introduced in North America and Europe 30 years ago. Gold kiwifruit, more recently introduced commercially, has been shown to bind IgE from some individuals allergic to green kiwifruit. Hardy kiwifruit is a third species that is now cultivated in North America with potential application as a fresh fruit and in processed foods. OBJECTIVE To compare the IgE binding properties of proteins in hardy kiwifruit extract and processed hardy kiwifruit concentrate to each other and to extracts of green and gold kiwifruits to evaluate the potential for allergic cross-reactions. METHODS Sera from kiwifruit-allergic subjects and individuals without allergies to kiwifruit were assayed for IgE binding to soluble proteins in green, gold and hardy kiwifruits and heat-processed concentrate from hardy kiwifruit using immunoblots and direct enzyme-linked immunosorbent assay (ELISA). RESULTS Marked IgE binding to specific hardy kiwifruit proteins was identified. However, IgE binding to heat-processed hardy kiwifruit concentrate was remarkably lower than to the raw fruit extract. CONCLUSIONS These results suggest that some kiwifruit-allergic individuals may suffer allergic cross-reactions if they consume raw hardy kiwifruit. However, heat processing of the hardy kiwifruit alters allergenic protein structure, dramatically reducing in vitro IgE binding. Processing likely reduces the risk of eliciting an allergic response in those with allergies to raw kiwifruit.
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Affiliation(s)
- Lingyun Chen
- Food Allergy Research and Resource Program, University of Nebraska, 143 Food Industry Complex, Lincoln, NE 68583 0955, USA
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Lucas JSA, Lewis SA, Trewin JB, Grimshaw KEC, Warner JO, Hourihane JO. Comparison of the allergenicity of Actinidia deliciosa (kiwi fruit) and Actinidia chinensis (gold kiwi). Pediatr Allergy Immunol 2005; 16:647-54. [PMID: 16343086 DOI: 10.1111/j.1399-3038.2005.00330.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Actinidia chinensis (gold kiwi) is a newly available fruit which has been shown to have in vitro immunoglobulin E (IgE) cross-reactivity with green kiwi. This is the first study to investigate clinical reactivity of gold kiwi. Five patients clinically allergic to green kiwi were investigated by skin test and double-blind placebo controlled food challenge (DBPCFC) with gold kiwi fruit. IgE-binding patterns of individual sera from the five challenged patients and a pool of sera from a further nine patients with kiwi allergy were compared in the two fruits by Western blotting. Cross reactivity of proteins in the two fruits was assessed by inhibition of immunoblots and by IgE enzyme-linked immunosorbent assay (ELISA) inhibition. Four of the five patients had a positive DBPCFC to gold kiwi. Western blotting showed marked differences in the allergen patterns of green and gold kiwi. However, inhibition of the immunoblots and ELISA assay reveals extensive inhibition of IgE binding to proteins in each fruit by the alternative species. Gold kiwi fruit is allergenic and patients allergic to green kiwi are at risk of reacting to the gold kiwi fruit. Despite having different protein profiles and IgE-binding patterns, the two species have proteins that extensively cross-inhibit the binding to IgE.
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Affiliation(s)
- Jane S A Lucas
- Allergy and Inflammation Sciences, University of Southampton, Southampton, UK.
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Sathe SK, Teuber SS, Roux KH. Effects of food processing on the stability of food allergens. Biotechnol Adv 2005; 23:423-9. [PMID: 15978770 DOI: 10.1016/j.biotechadv.2005.05.008] [Citation(s) in RCA: 128] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/13/2005] [Indexed: 10/25/2022]
Abstract
The ubiquitous presence of allergens in the human food supply coupled with increased awareness of food allergies warrants undertaking appropriate preventive measures to protect sensitive consumers from unwanted exposure to offending food allergens. Attempts to reduce or eliminate food allergenicity through food processing have met with mixed results. The rationale for using food processing to reduce/eliminate allergenicity and limitations to using this approach are discussed.
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Affiliation(s)
- Shridhar K Sathe
- Department of Nutrition, Food and Exercise Sciences, 402 Sandels Building, College of Human Sciences, Florida State University, Tallahassee, FL 32306-1493, United States.
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Mari A, Ballmer-Weber BK, Vieths S. The oral allergy syndrome: improved diagnostic and treatment methods. Curr Opin Allergy Clin Immunol 2005; 5:267-73. [PMID: 15864087 DOI: 10.1097/01.all.0000168793.27948.b0] [Citation(s) in RCA: 74] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
PURPOSE OF REVIEW The aim of this article is to review recent clinical and molecular findings related to the oral allergy syndrome in order to define its relevance in the field of food allergy, describe current diagnostic approaches and discuss attempts to use specific immunotherapy for treatment. RECENT FINDINGS New allergenic sources causing the oral allergy syndrome have been reported. Their allergenic molecules have been identified. In most of those studies oral allergy syndrome is reported as a clinical manifestation among more severe ones. Some of the molecules generally considered not to be at risk for severe reactions have been demonstrated to pose a threat for inducing generalized reactions. Some studies tried to assess the usefulness of immunotherapy with birch pollen extract by either subcutaneous or sublingual routes for the treatment of associated food allergies. In most of the cases, a well defined study design and a molecular approach at different study levels are lacking and thus the value of the obtained results is limited. To date, no final conclusion can be drawn on the basis of reported results. SUMMARY The knowledge about the highly prevalent phenomenon of oral allergy syndrome is still incomplete, in respect to both, epidemiology and foods inducing symptoms. It is very important to reach consensus on several aspects of this food-induced allergic disease. Further studies are required to highlight whether immunotherapy using co-recognized inhalant allergens is an effective way of curative treatment, or if co-treatment with purified pollen-related food allergens will be required to obtain a long-lasting effect.
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Affiliation(s)
- Adriano Mari
- Allergy Unit, National Health Service, Rome, Italy.
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Palomares O, Cuesta-Herranz J, Vereda A, Sirvent S, Villalba M, Rodríguez R. Isolation and identification of an 11S globulin as a new major allergen in mustard seeds. Ann Allergy Asthma Immunol 2005; 94:586-92. [PMID: 15945563 DOI: 10.1016/s1081-1206(10)61138-6] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND Although mustard seed allergy has been largely reported during the preceding 20 years, currently only 2 allergens, Sin a 1 and Bra j 1, have been identified. OBJECTIVE To improve the characterization of the allergenic profile of yellow mustard seeds by reporting the identification and biochemical characterization of an 11S globulin as a new major allergen. METHODS Mustard seed proteins were separated using size exclusion and ion-exchange chromatographic columns, sodium dodecyl sulfate-polyacrylamide gel electrophoresis, and 2-dimensional polyacrylamide gel electrophoresis. Separation of different polypeptide chains was achieved by reverse-phase high-performance liquid chromatography. Mass spectrometry after tryptic digestion and Edman degradation were used to determine amino acid sequences of peptides. IgE binding assays were performed with 13 serum samples from mustard allergic patients in immunoblotting and enzyme-linked immunosorbent inhibition assays. RESULTS A protein of 51 kDa was recognized as a major allergen by patients allergic to mustard and called Sin a 2. The allergen was dissociated in 2 chains of 36 and 23 kDa, which also bound IgE. N-terminal end and internal amino acid sequences allowed identification of the new allergen as a seed storage 11S globulin belonging to the Cupin super family. Purified allergen was able to inhibit the IgE binding of sera from allergic patients to mustard seeds extract in up to 55% of the responses. CONCLUSIONS An 11S globulin storage protein has been isolated and identified as a novel major allergen of mustard seeds.
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Affiliation(s)
- Oscar Palomares
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Químicas, Universidad Complutense, Madrid, Spain
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Current World Literature. Curr Opin Allergy Clin Immunol 2005. [DOI: 10.1097/01.all.0000168798.22110.c9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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