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Potential allergenicity of Medicago sativa investigated by a combined IgE-binding inhibition, proteomics and in silico approach.

Identifieur interne : 000704 ( Main/Exploration ); précédent : 000703; suivant : 000705

Potential allergenicity of Medicago sativa investigated by a combined IgE-binding inhibition, proteomics and in silico approach.

Auteurs : Marwa Yakhlef [Algérie, Italie] ; Ivana Giangrieco [Italie] ; Maria A. Ciardiello [Italie] ; Immacolata Fiume [Italie] ; Adriano Mari [Italie] ; Lynda Souiki [Algérie] ; Gabriella Pocsfalvi [Italie]

Source :

RBID : pubmed:32790067

Descripteurs français

English descriptors

Abstract

BACKGROUND

Alfalfa (Medicago sativa L) is one of the most planted crops worldwide primarily used to feed animals. The use of alfalfa in human diet as sprouts, infusions and nutritional supplements is rapidly gaining popularity. Despite this, allergenicity assessment of this novel plant food is largely lacking.

RESULTS

Here, leaf protein extract of alfalfa was studied using a combined proteomics, Immunoglobulin E (IgE)-binding inhibition assay and in silico approach to find potential allergens. We have identified and annotated 129 proteins using in-gel digestion proteomics and Blast2Go suit. A search against COMPARE database, using the identified proteins as query sequences, revealed high similarity with several allergenic proteins. The Single Point Highest Inhibition Achievable assay (SPHIAa) performed on the multiplex FABER

CONCLUSION

This study reports for the first time potential allergenic proteins in alfalfa. The results suggest that this plant food can be safely introduced, as a protein-rich supplement, in the diet of patients allergic to animal food allergens. Allergic patients towards certain plant food allergens need to be careful about consuming alfalfa because they might have allergic symptoms. © 2020 Society of Chemical Industry.


DOI: 10.1002/jsfa.10730
PubMed: 32790067


Affiliations:


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<term>Allergens (chemistry)</term>
<term>Allergens (genetics)</term>
<term>Allergens (immunology)</term>
<term>Amino Acid Sequence (MeSH)</term>
<term>Computer Simulation (MeSH)</term>
<term>Cross Reactions (MeSH)</term>
<term>Immunoglobulin E (immunology)</term>
<term>Medicago sativa (chemistry)</term>
<term>Medicago sativa (genetics)</term>
<term>Medicago sativa (immunology)</term>
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<term>Plant Leaves (genetics)</term>
<term>Plant Leaves (immunology)</term>
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<term>Allergènes (génétique)</term>
<term>Allergènes (immunologie)</term>
<term>Feuilles de plante (composition chimique)</term>
<term>Feuilles de plante (génétique)</term>
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<term>Medicago sativa (immunologie)</term>
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<term>Protéines végétales (génétique)</term>
<term>Protéines végétales (immunologie)</term>
<term>Protéomique (MeSH)</term>
<term>Réactions croisées (MeSH)</term>
<term>Simulation numérique (MeSH)</term>
<term>Séquence d'acides aminés (MeSH)</term>
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<keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en">
<term>Allergens</term>
<term>Plant Proteins</term>
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<keywords scheme="MESH" type="chemical" qualifier="genetics" xml:lang="en">
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<term>Plant Proteins</term>
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<term>Allergens</term>
<term>Immunoglobulin E</term>
<term>Plant Proteins</term>
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<term>Medicago sativa</term>
<term>Plant Leaves</term>
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<term>Allergènes</term>
<term>Feuilles de plante</term>
<term>Medicago sativa</term>
<term>Protéines végétales</term>
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<term>Plant Leaves</term>
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<term>Feuilles de plante</term>
<term>Medicago sativa</term>
<term>Protéines végétales</term>
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<term>Allergènes</term>
<term>Feuilles de plante</term>
<term>Immunoglobuline E</term>
<term>Medicago sativa</term>
<term>Protéines végétales</term>
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<div type="abstract" xml:lang="en">
<p>
<b>BACKGROUND</b>
</p>
<p>Alfalfa (Medicago sativa L) is one of the most planted crops worldwide primarily used to feed animals. The use of alfalfa in human diet as sprouts, infusions and nutritional supplements is rapidly gaining popularity. Despite this, allergenicity assessment of this novel plant food is largely lacking.</p>
</div>
<div type="abstract" xml:lang="en">
<p>
<b>RESULTS</b>
</p>
<p>Here, leaf protein extract of alfalfa was studied using a combined proteomics, Immunoglobulin E (IgE)-binding inhibition assay and in silico approach to find potential allergens. We have identified and annotated 129 proteins using in-gel digestion proteomics and Blast2Go suit. A search against COMPARE database, using the identified proteins as query sequences, revealed high similarity with several allergenic proteins. The Single Point Highest Inhibition Achievable assay (SPHIAa) performed on the multiplex FABER</p>
</div>
<div type="abstract" xml:lang="en">
<p>
<b>CONCLUSION</b>
</p>
<p>This study reports for the first time potential allergenic proteins in alfalfa. The results suggest that this plant food can be safely introduced, as a protein-rich supplement, in the diet of patients allergic to animal food allergens. Allergic patients towards certain plant food allergens need to be careful about consuming alfalfa because they might have allergic symptoms. © 2020 Society of Chemical Industry.</p>
</div>
</front>
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