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Crevel RWR, Verhoeckx K, Bøgh KL, Buck N, Chentouf A, Flanagan S, Galano M, Garthoff JA, Hazebrouck S, Yarham R, Borja G, Houben G. Allergenicity assessment of new or modified protein-containing food sources and ingredients. Food Chem Toxicol 2024; 189:114766. [PMID: 38810945 DOI: 10.1016/j.fct.2024.114766] [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: 04/02/2024] [Revised: 05/10/2024] [Accepted: 05/24/2024] [Indexed: 05/31/2024]
Abstract
The growing world population, changing dietary habits, and increasing pressure on agricultural resources are drivers for the development of novel foods (including new protein sources as well as existing protein sources that are produced or used in an alternative way or in a different concentration). These changes, coupled with consumer inclination to adopt new dietary trends, may heighten the intake of unfamiliar proteins, or escalate consumption of specific ones, potentially amplifying the prevalence of known and undiscovered food allergies. Assessing the allergenicity of novel or modified protein-based foods encounters several challenges, including uncertainty surrounding acceptable risks and assessment criteria for determining safety. Moreover, the available methodological tools for gathering supportive data exhibit significant gaps. This paper synthesises these challenges, addressing the varied interpretations of "safe" across jurisdictions and societal attitudes towards allergenic risk. It proposes a comprehensive two-part framework for allergenicity assessment: the first part emphasises systematic consideration of knowledge and data requirements, while the second part proposes the application of a generic assessment approach, integrating a Threshold of Allergological Concern. This combined framework highlights areas that require attention to bridge knowledge and data gaps, and it delineates research priorities for its development and implementation.
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Affiliation(s)
- R W R Crevel
- René Crevel Consulting Ltd, Suite A, 82 James Carter Road, Mildenhall, IP28 7HP, UK
| | - K Verhoeckx
- University Medical Center Utrecht, Department of Dermatology and Allergology, Utrecht, the Netherlands
| | - K L Bøgh
- National Food Institute, Technical University of Denmark, 2800, Kgs. Lyngby, Denmark
| | - N Buck
- General Mills, Inc. Av. Reverdil 14, 1260 Nyon, Switzerland
| | - A Chentouf
- Roquette Frères, Toxicology & Safety Unit -Nutrition & Health R&D, 1, rue de la Haute Loge, 62136, Lestrem, France
| | | | - M Galano
- dsm-firmenich, Delft, the Netherlands
| | - J A Garthoff
- Danone Food Safety Center, Danone Nutricia Research, the Netherlands
| | - S Hazebrouck
- Université Paris Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé, Gif-sur-Yvette, France
| | | | | | - G Houben
- The Netherlands Organisation for Applied Scientific Research TNO, the Netherlands; University Medical Center Utrecht, the Netherlands
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Krutz NL, Kimber I, Winget J, Nguyen MN, Limviphuvadh V, Maurer-Stroh S, Mahony C, Gerberick GF. Application of AllerCatPro 2.0 for protein safety assessments of consumer products. FRONTIERS IN ALLERGY 2023; 4:1209495. [PMID: 37497076 PMCID: PMC10367106 DOI: 10.3389/falgy.2023.1209495] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 06/27/2023] [Indexed: 07/28/2023] Open
Abstract
Foreign proteins are potentially immunogenic, and a proportion of these are able to induce immune responses that result in allergic sensitization. Subsequent exposure of sensitized subjects to the inducing protein can provoke a variety of allergic reactions that may be severe, or even fatal. It has therefore been recognized for some time that it is important to determine a priori whether a given protein has the potential to induce allergic responses in exposed subjects. For example, the need to assess whether transgene products expressed in genetically engineered crop plants have allergenic properties. This is not necessarily a straightforward exercise (as discussed elsewhere in this edition), but the task becomes even more challenging when there is a need to conduct an overall allergenicity safety assessment of complex mixtures of proteins in botanicals or other natural sources that are to be used in consumer products. This paper describes a new paradigm for the allergenicity safety assessment of proteins that is based on the use of AllerCatPro 2.0, a new version of a previously described web application model developed for the characterization of the allergenic potential of proteins. Operational aspects of AllerCatPro 2.0 are described with emphasis on the application of new features that provide improvements in the predictions of allergenic properties such as the identification of proteins with high allergenic concern. Furthermore, the paper provides a description of strategies of how AllerCatPro 2.0 can best be deployed as a screening tool for identifying suitable proteins as ingredients in consumer products as well as a tool, in conjunction with label-free proteomic analysis, for identifying and semiquantifying protein allergens in complex materials. Lastly, the paper discusses the steps that are recommended for formal allergenicity safety assessment of novel consumer products which contain proteins, including consideration and integration of predicted consumer exposure metrics. The article therefore provides a holistic perspective of the processes through which effective protein safety assessments can be made of potential allergenic hazards and risks associated with exposure to proteins in consumer products, with a particular focus on the use of AllerCatPro 2.0 for this purpose.
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Affiliation(s)
- Nora L. Krutz
- NV Procter & Gamble Services Company SA, Global Product Stewardship, Strombeek-Bever, Belgium
| | - Ian Kimber
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom
| | - Jason Winget
- The Procter & Gamble Company, Mason, OH, United States
| | - Minh N. Nguyen
- Bioinformatics Institute, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
- IFCS Programme, Singapore Institute for Food and Biotechnology Innovation, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Vachiranee Limviphuvadh
- Bioinformatics Institute, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
- IFCS Programme, Singapore Institute for Food and Biotechnology Innovation, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Sebastian Maurer-Stroh
- Bioinformatics Institute, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
- IFCS Programme, Singapore Institute for Food and Biotechnology Innovation, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
- YLL School of Medicine and Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Catherine Mahony
- Procter & Gamble, Global Product Stewardship, Reading, United Kingdom
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Kopko C, Garthoff J, Zhou K, Meunier L, O'Sullivan A, Fattori V. Are alternative proteins increasing food allergies? Trends, drivers and future perspectives. Trends Food Sci Technol 2022. [DOI: 10.1016/j.tifs.2022.09.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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4
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Taylor SL, Marsh JT, Koppelman SJ, Kabourek JL, Johnson PE, Baumert JL. A perspective on pea allergy and pea allergens. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.07.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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5
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Fiocchi A, Vickery BP, Wood RA. The use of biologics in food allergy. Clin Exp Allergy 2021; 51:1006-1018. [PMID: 33966304 DOI: 10.1111/cea.13897] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 04/29/2021] [Accepted: 04/30/2021] [Indexed: 12/13/2022]
Abstract
BACKGROUND Food allergy continues to pose problems due to its increased frequency and its increasingly high severity. In this context, alongside the traditional avoidance strategies of allergenic foods and desensitization through the cautious progression of exposure to foods in the context of oral immunotherapy (OIT), alternative strategies have made their way in the last decades. We review the possibilities of intervention in food allergy with the use of biological drugs capable of interfering with the synthesis of IgE, with their mechanisms of action, or with complex biological mechanisms that lead to the establishment of a food allergy. METHODS Repeated Entrez PubMed searches using the template algorithm "Food allergy" and "biologics" or "Omalizumab" or "Dupilumab" or "milk desensitization" or "oral tolerance induction" or "oral immunotherapy" or "Etokimab" or "Tezepelumab" or "Quilizumab" or "Ligelizumab" or "Tralokinumab" or "Nemolizumab" or "Mepolizumab" or "Reslizumab" or "Benralizumab". The authors' clinical experience in paediatric allergy units of University hospitals was also drawn upon. RESULTS The landscape in this context has changed dramatically over the past 10 years. We have acquired knowledge mainly on the effect of different types of anti-IgE treatments in poliallergic patients with food allergy, and in patients treated with OIT. However, other mediators are being targeted by specific biologic treatments. Among them, the alarmins Il-33 and TSLP, IL-4 and IL-13, eosinophil-related molecules as IL-6, IL-8, IL-10, IL-12, and mostly IL-5, and integrins involved in the pathogenesis of eosinophilic gastrointestinal diseases (EGIDs), as SIGLEC-8. CONCLUSIONS The ever-better knowledge of the mechanisms of food allergy allowing these developments will improve not only the perspective of patients with the most serious immediate food allergies such as anaphylaxis, but also those of patients with related diseases such as atopic dermatitis, eosinophilic esophagitis, and EGIDs. Biologics are also intended to complement OIT strategies that have developed over the years.
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Affiliation(s)
| | | | - Robert A Wood
- Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Taylor SL, Houben GF, Blom W, Westerhout J, Remington BC, Crevel RW, Brooke-Taylor S, Baumert JL. The population threshold for soy as an allergenic food – Why did the Reference Dose decrease in VITAL 3.0? Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.03.036] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Ranking of 10 legumes according to the prevalence of sensitization as a parameter to characterize allergenic proteins. Toxicol Rep 2021; 8:767-773. [PMID: 33854954 PMCID: PMC8027524 DOI: 10.1016/j.toxrep.2021.03.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 03/19/2021] [Accepted: 03/27/2021] [Indexed: 11/25/2022] Open
Abstract
10 different legumes extracts could be ranked based on the variations in the prevalence of sensitization. Variations in the prevalence of sensitization allowed for ranking of 18 different individual legume proteins. Ranking can be used to select reference proteins to develop predictive assays for the assessment of the sensitizing potential of novel proteins.
Predicting the allergenicity of novel proteins is challenging due to the absence of validated predictive methods and a well-defined reference set of proteins. The prevalence of sensitization could be a parameter to select reference proteins to characterize allergenic proteins. This study investigated whether the prevalence of sensitization of legume extracts and proteins can indeed be used for this purpose. A random sample of suspected food-allergic patients (n=106) was therefore selected. 10 extracts (processed and non-processed) and 18 individual proteins (2S albumins, 7S and 11S globulins) from black lentil, blue and white lupine, chickpea, faba bean, green lentil, pea, peanut, soybean, and white bean were isolated and the prevalence of sensitization and the intensity of IgE binding were evaluated. The prevalence of sensitization ranged from 5.7 % (faba bean and green lentil) to 14.2 % (peanut). The prevalence of sensitization for individual legume proteins ranged from 0.0 % for albumin 1 (pea) to 15.1 %–17.9 % for Ara h 1, 2, 3, and 6 (peanut). The prevalence of sensitization correlated strongly with the intensity of IgE binding for individual proteins (p < 0.05, ρ = 0.894), for extracts no correlation was found. The discovered ranking can be used to select reference proteins for the development and validation of predictive in vitro or in vivo assays for the assessment of the sensitizing potential.
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8
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Houben GF, Baumert JL, Blom WM, Kruizinga AG, Meima MY, Remington BC, Wheeler MW, Westerhout J, Taylor SL. Full range of population Eliciting Dose values for 14 priority allergenic foods and recommendations for use in risk characterization. Food Chem Toxicol 2020; 146:111831. [PMID: 33166672 DOI: 10.1016/j.fct.2020.111831] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 10/08/2020] [Accepted: 10/23/2020] [Indexed: 02/07/2023]
Abstract
Previously, we published selected Eliciting Dose (ED) values (i.e. ED01 and ED05 values) for 14 allergenic foods, predicted to elicit objective allergic symptoms in 1% and 5%, respectively, of the allergic population (Remington et al., 2020). These ED01 and ED05 values were specifically presented and discussed in the context of establishing Reference Doses for allergen management and the calculation of Action Levels for Precautionary Allergen Labeling (PAL). In the current paper, we publish the full range of ED values for these allergenic foods and provide recommendations for their use, specifically in the context of characterizing risks of concentrations of (unintended) allergenic proteins in food products. The data provided in this publication give risk assessors access to full population ED distribution information for 14 priority allergenic foods, based on the largest threshold database worldwide. The ED distributions were established using broad international consensus regarding suitable datapoints and methods for establishing individual patient's NOAELs and LOAELs and state of the art statistical modelling. Access to these ED data enables risk assessors to use this information for state-of-the-art food allergen risk assessment. This paper contributes to a harmonization of food allergen risk assessment and risk management and PAL practices.
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Affiliation(s)
- Geert F Houben
- The Netherlands Organisation for Applied Scientific Research TNO, Utrecht, the Netherlands.
| | - Joseph L Baumert
- Food Allergy Research and Resource Program, University of Nebraska, Lincoln, USA
| | - W Marty Blom
- The Netherlands Organisation for Applied Scientific Research TNO, Utrecht, the Netherlands
| | - Astrid G Kruizinga
- The Netherlands Organisation for Applied Scientific Research TNO, Utrecht, the Netherlands
| | - Marie Y Meima
- The Netherlands Organisation for Applied Scientific Research TNO, Utrecht, the Netherlands
| | - Benjamin C Remington
- Food Allergy Research and Resource Program, University of Nebraska, Lincoln, USA; Remington Consulting Group B.V., Utrecht, the Netherlands
| | - Matthew W Wheeler
- Biostatistics and Computational Biology Branch, National Institute of Environmental Health, Research Triangle Park, NC, USA
| | - Joost Westerhout
- The Netherlands Organisation for Applied Scientific Research TNO, Utrecht, the Netherlands
| | - Steve L Taylor
- Food Allergy Research and Resource Program, University of Nebraska, Lincoln, USA
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9
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Can we define a level of protection for allergic consumers that everyone can accept? Regul Toxicol Pharmacol 2020; 117:104751. [PMID: 32763252 DOI: 10.1016/j.yrtph.2020.104751] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 07/23/2020] [Accepted: 07/27/2020] [Indexed: 01/01/2023]
Abstract
Substantial progress has been made in characterising the risk associated with exposure to allergens in food. However, absence of agreement on what risk is tolerable has made it difficult to set quantitative limits to manage that risk and protect allergic consumers effectively. This paper reviews scientific progress in the area and the diverse status of allergen management approaches and lack of common standards across different jurisdictions, including within the EU. This lack of regulation largely explains why allergic consumers find Precautionary Allergen Labelling confusing and cannot rely on it. We reviewed approaches to setting quantitative limits for a broad range of food safety hazards to identify the reasoning leading to their adoption. This revealed a diversity of approaches from pragmatic to risk-based, but we could not find clear evidence of the process leading to the decision on risk acceptability. We propose a framework built around the criteria suggested by Murphy and Gardoni (2008) for approaches to defining tolerable risks. Applying these criteria to food allergy, we concluded that sufficient knowledge exists to implement the framework, including sufficient expertise across the whole range of stakeholders to allow opinions to be heard and respected, and a consensus to be achieved.
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Holzhauser T, Johnson P, Hindley JP, O'Connor G, Chan CH, Costa J, Fæste CK, Hirst BJ, Lambertini F, Miani M, Robert MC, Röder M, Ronsmans S, Bugyi Z, Tömösközi S, Flanagan SD. Are current analytical methods suitable to verify VITAL® 2.0/3.0 allergen reference doses for EU allergens in foods? Food Chem Toxicol 2020; 145:111709. [PMID: 32866515 DOI: 10.1016/j.fct.2020.111709] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 08/21/2020] [Accepted: 08/24/2020] [Indexed: 01/25/2023]
Abstract
Food allergy affects up to 6% of Europeans. Allergen identification is important for the risk assessment and management of the inadvertent presence of allergens in foods. The VITAL® initiative for voluntary incidental trace allergen labeling suggests protein reference doses, based on clinical reactivity in food challenge studies, at or below which voluntary labelling is unnecessary. Here, we investigated if current analytical methodology could verify the published VITAL® 2.0 doses, that were available during this analysis, in serving sizes between 5 and 500 g. Available data on published and commercial ELISA, PCR and mass spectrometry methods, especially for the detection of peanuts, soy, hazelnut, wheat, cow's milk and hen's egg were reviewed in detail. Limit of detection, quantitative capability, matrix compatibility, and specificity were assessed. Implications by the recently published VITAL® 3.0 doses were also considered. We conclude that available analytical methods are capable of reasonably robust detection of peanut, soy, hazelnut and wheat allergens for levels at or below the VITAL® 2.0 and also 3.0 doses, with some methods even capable of achieving this in a large 500 g serving size. Cow's milk and hen's egg are more problematic, largely due to matrix/processing incompatibility. An unmet need remains for harmonized reporting units, available reference materials, and method ring-trials to enable validation and the provision of comparable measurement results.
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Affiliation(s)
- Thomas Holzhauser
- Paul-Ehrlich-Institut, Division of Allergology, D-63225, Langen, Germany.
| | - Philip Johnson
- University of Nebraska-Lincoln, Department of Food Science and Technology, FARRP, Rm 266 Food Innovation Center, 1901 N 21 Street, PO Box 886207, Lincoln, NE, 68588-6207, USA.
| | | | - Gavin O'Connor
- Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116, Braunschweig, Germany.
| | | | - Joana Costa
- REQUIMTE-LAQV, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal.
| | - Christiane K Fæste
- Norwegian Veterinary Institute, Toxicology Research Group, P.O. Box 750 Sentrum, 0106, Oslo, Norway.
| | | | | | - Michela Miani
- International Life Sciences Institute, European Branch, ILSI Europe a.i.s.b.l., Brussels, Belgium.
| | - Marie-Claude Robert
- Nestlé Research, Institute of Food Safety and Analytical Sciences, Lausanne, Switzerland.
| | - Martin Röder
- Ifp Institut für Produktqualität GmbH, Wagner-Régeny-Str. 8, 12489, Berlin, Germany.
| | | | - Zsuzsanna Bugyi
- Budapest University of Technology and Economics, Department of Applied Biotechnology and Food Science, Research Group of Cereal Science and Food Quality, Budapest, Hungary.
| | - Sándor Tömösközi
- Budapest University of Technology and Economics, Department of Applied Biotechnology and Food Science, Research Group of Cereal Science and Food Quality, Budapest, Hungary.
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11
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Krutz NL, Kimber I, Maurer-Stroh S, Gerberick GF. Determination of the relative allergenic potency of proteins: hurdles and opportunities. Crit Rev Toxicol 2020; 50:521-530. [DOI: 10.1080/10408444.2020.1793895] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Nora L. Krutz
- Procter & Gamble Services Company SA, Strombeek-Bever, Belgium
| | - Ian Kimber
- University of Manchester, Faculty of Biology, Medicine and Health, Manchester, UK
| | - Sebastian Maurer-Stroh
- Biomolecular Function Discovery Division, Bioinformatics Institute, Agency for Science, Technology and Research, Singapore, Singapore
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12
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Pierboni E, Rondini C, Zampa S, Tovo GR, Altissimi S, Haouet N. Evaluation of rice as unregulated hidden allergen by fast real-time PCR. J Cereal Sci 2020. [DOI: 10.1016/j.jcs.2020.102929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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13
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Mine Y, Jin Y, Zhang H, Rupa P, Majumder K, Sakurai T, Taniguchi Y, Takagaki R, Watanabe H, Mitsuzumi H. Prophylactic effects of isomaltodextrin in a Balb/c mouse model of egg allergy. NPJ Sci Food 2019; 3:23. [PMID: 31728412 PMCID: PMC6834578 DOI: 10.1038/s41538-019-0057-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 08/23/2019] [Indexed: 12/21/2022] Open
Abstract
The aim of this study was to evaluate the potential effects of isomaltodextrin (IMD), a dietary saccharide polymer derived from enzymatically produced from starch, on the ability to alter immune response (IR) bias to hen egg ovalbumin (Ova) induced allergic inflammation in mice. Groups of Balb/c mice were pre-treated with various doses of IMD in drinking water (1.0, 2.5, and 5.0% w/v) for 6 weeks and subsequently sensitized to the Ova together with continuous administration of IMD. To evaluate changes in immune response bias, immunoglobulin isotype-associated antibody activity, concentrations of type 1 and 2 cytokines and the percentage of T-regulatory cells (T-regs) in blood were measured. Clinical signs of allergy were assessed after oral challenge with Ova. Treatment with IMD did not significantly alter the frequency of clinical signs, however there was a trend in the overall reduction of clinical signs. Effect on IR bias was observed in the treatment groups as reflected by reduction in a type 1-biased phenotype as evident by decrease in isotype-specific IgE, IgG and increase in IL-12 cytokine production and a high proportion of T-regs. This study revealed that IMD could be a useful prophylactic candidate for alteration of allergic IR bias in mice and an immune-stimulator for reducing egg induced allergic reactions.
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Affiliation(s)
- Yoshinori Mine
- 1Department of Food Science, University of Guelph, Guelph, ON N1G2W1 Canada
| | - Yan Jin
- 1Department of Food Science, University of Guelph, Guelph, ON N1G2W1 Canada.,3Present Address: College of Food Engineering and Biotechnology, Tianjin University of Science and Technology, 300457 Tianjin, People's Republic of China
| | - Hua Zhang
- 1Department of Food Science, University of Guelph, Guelph, ON N1G2W1 Canada
| | - Prithy Rupa
- 1Department of Food Science, University of Guelph, Guelph, ON N1G2W1 Canada
| | - Kaustav Majumder
- 1Department of Food Science, University of Guelph, Guelph, ON N1G2W1 Canada.,4Present Address: Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE 68588-6205 USA
| | - Takeo Sakurai
- 2R&D Center, Hayashibara CO., LTD., 675-1 Fujisaki, Naka-ku, Okayama 702-8006 Japan
| | - Yoshifumi Taniguchi
- 2R&D Center, Hayashibara CO., LTD., 675-1 Fujisaki, Naka-ku, Okayama 702-8006 Japan
| | - Ryodai Takagaki
- 2R&D Center, Hayashibara CO., LTD., 675-1 Fujisaki, Naka-ku, Okayama 702-8006 Japan
| | - Hikaru Watanabe
- 2R&D Center, Hayashibara CO., LTD., 675-1 Fujisaki, Naka-ku, Okayama 702-8006 Japan
| | - Hitoshi Mitsuzumi
- 2R&D Center, Hayashibara CO., LTD., 675-1 Fujisaki, Naka-ku, Okayama 702-8006 Japan
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Westerhout J, Baumert JL, Blom WM, Allen KJ, Ballmer-Weber B, Crevel RW, Dubois AE, Fernández-Rivas M, Greenhawt MJ, Hourihane JO, Koplin JJ, Kruizinga AG, Le TM, Sampson HA, Shreffler WG, Turner PJ, Taylor SL, Houben GF, Remington BC. Deriving individual threshold doses from clinical food challenge data for population risk assessment of food allergens. J Allergy Clin Immunol 2019; 144:1290-1309. [DOI: 10.1016/j.jaci.2019.07.046] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 06/24/2019] [Accepted: 07/22/2019] [Indexed: 10/26/2022]
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15
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Houben G, Blom M, Alvito P, Assunção R, Crevel R, Fæste CK, Le TM, Madsen CB, Remington B, Stroheker T, Vassilopoulou E, Verhoeckx K, Žiarovská J, Constable A. Defining the targets for the assessment of IgE-mediated allergenicity of new or modified food proteins. Food Chem Toxicol 2019; 127:61-69. [PMID: 30826409 DOI: 10.1016/j.fct.2019.02.036] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 02/20/2019] [Accepted: 02/25/2019] [Indexed: 12/20/2022]
Abstract
Many food innovations rely on the introduction and use of new or modified proteins. New or modified food proteins may lead to major health risks due to their inherent potential to cause food allergy. Currently, the pre-market allergenicity assessment for new or modified food proteins and protein sources relies on methods for identifying allergenic hazards based on characteristics of known allergens. However, there is no general consensus on the allergenicity parameters to use and the criteria that should apply for the evaluation and decisions to be made. In this paper, we propose that the strategy for allergenicity risk assessment of new or modified food proteins and the methodologies applied should be governed by the risk management questions to be answered, reflected in the information needed by risk managers to enable their informed decision making. We generated an inventory of health outcome-related assessment parameters and criteria potentially important for risk management decision-making and we discuss the implications of selecting different optional criteria (e.g. cut-off values) for what could be accepted as safe with regards to the health outcomes in the (at risk) population. The impact of these various options on both method development and risk management practices was investigated.
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Affiliation(s)
| | | | - Paula Alvito
- National Institute of Health Dr. Ricardo Jorge, Lisbon, Portugal
| | - Ricardo Assunção
- National Institute of Health Dr. Ricardo Jorge, Lisbon, Portugal
| | | | | | - Thuy-My Le
- University Medical Center Utrecht, Utrecht, the Netherlands
| | | | | | | | | | | | - Jana Žiarovská
- Slovak University of Agriculture, Nitra, Slovak Republic
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Caffeic acid-assisted cross-linking catalyzed by polyphenol oxidase decreases the allergenicity of ovalbumin in a Balb/c mouse model. Food Chem Toxicol 2018; 111:275-283. [DOI: 10.1016/j.fct.2017.11.026] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Revised: 10/10/2017] [Accepted: 11/18/2017] [Indexed: 02/06/2023]
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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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18
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King T, Cole M, Farber JM, Eisenbrand G, Zabaras D, Fox EM, Hill JP. Food safety for food security: Relationship between global megatrends and developments in food safety. Trends Food Sci Technol 2017. [DOI: 10.1016/j.tifs.2017.08.014] [Citation(s) in RCA: 89] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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19
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Feketea G, Tsabouri S. Common food colorants and allergic reactions in children: Myth or reality? Food Chem 2017; 230:578-588. [DOI: 10.1016/j.foodchem.2017.03.043] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 03/07/2017] [Accepted: 03/08/2017] [Indexed: 01/15/2023]
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20
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Javed B, Padfield P, Sperrin M, Simpson A, Mills ENC. A protocol for a systematic review to identify allergenic tree nuts and the molecules responsible for their allergenic properties. Food Chem Toxicol 2017; 106:411-416. [PMID: 28595954 DOI: 10.1016/j.fct.2017.06.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 05/12/2017] [Accepted: 06/03/2017] [Indexed: 01/13/2023]
Abstract
Food regulations require that tree nuts and derived ingredients are included on food labels in order to help individuals with IgE-mediated allergies to avoid them. However, there is no consensus regarding which tree nut species should be included in this definition and specified on food labels. Allergen detection methods used for monitoring foods target allergen molecules, but it not clear which are the most relevant molecules to choose. A modified population-exposure-comparators-outcome (PECO) approach has been developed to systematically review the evidence regarding (1) which allergenic tree nuts should be included in food allergen labelling lists and (2) which are the clinically relevant allergens which should be used as analytical targets. A search strategy and criteria against which the evidence will be evaluated have been developed. The resulting evidence will be used to rank tree nuts with regards their ability to cause IgE-mediated allergies, and allergen molecules regarding their capacity to elicit an allergic reaction. The results of the systematic review will enable risk assessors and managers to identify tree nut species that should be included in food allergen labelling lists and ensure analytical methods for determination of allergens in foods are targeting appropriate molecules.
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Affiliation(s)
- Bushra Javed
- Manchester Institute of Biotechnology, Manchester M17DN, UK; Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Manchester M17DN, UK
| | | | - Matthew Sperrin
- Division of Informatics, Imaging and Data Sciences, School of Health Sciences, Manchester Academic Health Science Centre, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester M17DN, UK
| | - Angela Simpson
- Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Manchester M17DN, UK; University Hospital of South Manchester, Manchester M17DN, UK
| | - E N Clare Mills
- Manchester Institute of Biotechnology, Manchester M17DN, UK; Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Manchester M17DN, UK.
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21
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Smit J, Zeeuw-Brouwer MLD, van Roest M, de Jong G, van Bilsen J. Evaluation of the sensitizing potential of food proteins using two mouse models. Toxicol Lett 2016; 262:62-69. [PMID: 27663974 DOI: 10.1016/j.toxlet.2016.09.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Revised: 08/30/2016] [Accepted: 09/11/2016] [Indexed: 01/01/2023]
Abstract
The current methodology to identify allergenic food proteins is effective in identifying those that are likely to cross-react with known allergens. However, most assays show false positive results for low/non-allergens. Therefore, an ex vivo/in vitro DC-T cell assay and an in vivo mouse model were used to distinguish known allergenic food proteins (Ara h 1, β-Lactoglobulin, Pan b 1, bovine serum albumin, whey protein isolate) from low/non allergenic food proteins (soy lipoxygenase, gelatin, beef tropomyosin, rubisco, Sola t 1). CD4+ T cells from protein/alum-immunized mice were incubated with corresponding protein-pulsed bone marrow-derived DC and analyzed for cytokine release. All known allergens induced Th2 responses in vitro, whereas soy lipoxygenase, gelatin or beef tropomyosin did not. Sola t 1 and rubisco induced a more generalized T cell response due to endotoxin contamination, indicating the endotoxin-sensitivity of the DC-T assay. To analyze responses in vivo, mice were orally sensitized on days 0 and 7. Known allergens induced IgE and mMCP-1 release upon oral challenge at day 16, whereas the low/non-allergens did not. Both the DC-T cell assay and the mouse model were able to distinguish 5 known allergens from 5 low/non-allergens and may be useful to identify novel allergenic food proteins.
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Affiliation(s)
- Joost Smit
- Institute for Risk Assessment Sciences, University Utrecht, Utrecht, The Netherlands; Utrecht Center for Food Allergy, Utrecht, The Netherlands.
| | | | - Manon van Roest
- Institute for Risk Assessment Sciences, University Utrecht, Utrecht, The Netherlands; Utrecht Center for Food Allergy, Utrecht, The Netherlands
| | - Govardus de Jong
- Utrecht Center for Food Allergy, Utrecht, The Netherlands; TNO, Zeist, The Netherlands
| | - Jolanda van Bilsen
- Utrecht Center for Food Allergy, Utrecht, The Netherlands; TNO, Zeist, The Netherlands
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22
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Verhoeckx K, Broekman H, Knulst A, Houben G. Allergenicity assessment strategy for novel food proteins and protein sources. Regul Toxicol Pharmacol 2016; 79:118-124. [PMID: 27012375 DOI: 10.1016/j.yrtph.2016.03.016] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Revised: 02/20/2016] [Accepted: 03/18/2016] [Indexed: 12/26/2022]
Abstract
To solve the future food insecurity problem, alternative and sustainable protein sources (e.g. insects, rapeseed, fava bean and algae) are now being explored for the production of food and feed. To approve these novel protein sources for future food a comprehensive risk assessment is needed according to the European food legislation. Allergenicity risk assessment might pose some major difficulties, since detailed guidance on how to assess the allergenic potential of novel foods is not available. At present, the approach relies mostly on the guidance of allergenicity assessment for genetically modified (GM) plant foods. The most recent one was proposed by EFSA (2010 and 2011); "weight-of-evidence approach". However this guidance is difficult to interpret, not completely applicable or validated for novel foods and therefore needs some adjustments. In this paper we propose a conceptual strategy which is based on the "weight-of-evidence approach" for food derived from GM plants and other strategies that were previously published in the literature. This strategy will give more guidance on how to assess the allergenicity of novel food proteins and protein sources.
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Affiliation(s)
- Kitty Verhoeckx
- TNO, Utrechtseweg 48, 3704 HE Zeist, The Netherlands; Dep. Dermatology/Allergology, University Medical Centre Utrecht (UMCU), P.O. Box 85500, Internal mail no G02.124, 3508 GA, Utrecht, The Netherlands.
| | - Henrike Broekman
- Dep. Dermatology/Allergology, University Medical Centre Utrecht (UMCU), P.O. Box 85500, Internal mail no G02.124, 3508 GA, Utrecht, The Netherlands.
| | - André Knulst
- Dep. Dermatology/Allergology, University Medical Centre Utrecht (UMCU), P.O. Box 85500, Internal mail no G02.124, 3508 GA, Utrecht, The Netherlands.
| | - Geert Houben
- TNO, Utrechtseweg 48, 3704 HE Zeist, The Netherlands; Dep. Dermatology/Allergology, University Medical Centre Utrecht (UMCU), P.O. Box 85500, Internal mail no G02.124, 3508 GA, Utrecht, The Netherlands.
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