Hemp seed : An allergen source with potential cross-reactivity to hazelnut
Copyright © 2023 Elsevier Ltd. All rights reserved..
The increasing exposure of the population to Cannabis sativa has revealed allergies to different parts of the plant, among which hemp seed. Nonetheless, the major hemp seed allergens remain to be identified. Several known families of allergens are present in hemp seed, including notably seed storage proteins. We therefore aimed to investigate the potential allergenicity of the hemp seed storage proteins and their potential cross-reactivity to different seeds and nuts. For this, we extracted hemp seed proteins sequentially using buffers with increasing levels of salinity (H2O, T2 and T3) to yield extracts differentially enriched in storage proteins. We used these extracts to perform immunoblots and ELISAs using sera of patients either sensitized to hemp seeds or sensitized/allergic to other seeds and nuts. Immunoblots and proteomics analyses identified vicilins and edestins as potential hemp seed allergens. Moreover, ELISA analyses revealed a correlation between sensitization to hazelnut and the hemp seed T3 extract (enriched in storage proteins). The possible cross-reactivity between hazelnut and hemp seed proteins was further strengthened by the results from inhibition ELISAs: the incubation of sera from hazelnut-sensitized individuals with increasing concentrations of the T3 extract inhibited serum IgE binding to the hazelnut extract by about 25-30%. Our study thus identifies vicilins and edestins as potential hemp seed allergens and highlights a possible cross-reactivity with hazelnut. The clinical relevance of this cross-reactivity between hemp seed and hazelnut needs to be further investigated in hazelnut-allergic individuals.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:169 |
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| Enthalten in: |
Food research international (Ottawa, Ont.) - 169(2023) vom: 30. Juli, Seite 112932 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Beriziky, Princy [VerfasserIn] |
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| Links: |
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| Themen: |
37341-29-0 |
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| Anmerkungen: |
Date Completed 01.06.2023 Date Revised 01.06.2023 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.foodres.2023.112932 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a The increasing exposure of the population to Cannabis sativa has revealed allergies to different parts of the plant, among which hemp seed. Nonetheless, the major hemp seed allergens remain to be identified. Several known families of allergens are present in hemp seed, including notably seed storage proteins. We therefore aimed to investigate the potential allergenicity of the hemp seed storage proteins and their potential cross-reactivity to different seeds and nuts. For this, we extracted hemp seed proteins sequentially using buffers with increasing levels of salinity (H2O, T2 and T3) to yield extracts differentially enriched in storage proteins. We used these extracts to perform immunoblots and ELISAs using sera of patients either sensitized to hemp seeds or sensitized/allergic to other seeds and nuts. Immunoblots and proteomics analyses identified vicilins and edestins as potential hemp seed allergens. Moreover, ELISA analyses revealed a correlation between sensitization to hazelnut and the hemp seed T3 extract (enriched in storage proteins). The possible cross-reactivity between hazelnut and hemp seed proteins was further strengthened by the results from inhibition ELISAs: the incubation of sera from hazelnut-sensitized individuals with increasing concentrations of the T3 extract inhibited serum IgE binding to the hazelnut extract by about 25-30%. Our study thus identifies vicilins and edestins as potential hemp seed allergens and highlights a possible cross-reactivity with hazelnut. The clinical relevance of this cross-reactivity between hemp seed and hazelnut needs to be further investigated in hazelnut-allergic individuals | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Cannabis sativa | |
| 650 | 4 | |a Cross-reactivity | |
| 650 | 4 | |a Food allergy | |
| 650 | 4 | |a Hazelnut | |
| 650 | 4 | |a Hemp seed | |
| 650 | 4 | |a Storage proteins | |
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| 650 | 7 | |a Plant Extracts |2 NLM | |
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| 700 | 1 | |a Linxe, Laura |e verfasserin |4 aut | |
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| 700 | 1 | |a Rogniaux, Hélène |e verfasserin |4 aut | |
| 700 | 1 | |a Denery-Papini, Sandra |e verfasserin |4 aut | |
| 700 | 1 | |a Morisset, Martine |e verfasserin |4 aut | |
| 700 | 1 | |a Larré, Colette |e verfasserin |4 aut | |
| 700 | 1 | |a Dijk, Wieneke |e verfasserin |4 aut | |
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