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Regulation of exacerbated immune responses in human peripheral blood cells by hydrolysed egg white proteins

AutorLozano-Ojalvo, D.; Molina, Elena ; López-Fandiño, Rosina
Fecha de publicación2016
EditorPublic Library of Science
CitaciónPLoS ONE 11(3): e0151813 (2016)
ResumenThe anti-allergic potential of egg white protein hydrolysates (from ovalbumin, lysozyme and ovomucoid) was evaluated as their ability to hinder cytokine and IgE production by Th2-skewed human peripheral blood mononuclear cells (PBMCs), as well as the release of proinflammatory factors and generation of reactive oxygen species from Th1-stimulated peripheral blood leukocytes (PBLs). The binding to IgE of egg allergic patients was determined and the peptides present in the hydrolysates were identified. The hydrolysates with alcalase down-regulated the production of Th2-biased cytokines and the secretion of IgE to the culture media of Th2-skewed PBMCs, and they significantly neutralized oxidative stress in PBLs. The hydrolysates of ovalbumin and ovomucoid with pepsin helped to re-establish the Th1/Th2 balance in Th2-biased PBMCs, while they also inhibited the release of pro-inflammatory mediators and reduced oxidative stress in PBLs treated with inflammatory stimuli. The hydrolysates with alcalase, in addition to equilibrating Th2 differentiation, exhibited a low IgE-binding. Therefore, they would elicit mild allergic reactions while retaining T cellstimulating abilities, which might correlate with an anti-allergic benefit.
Versión del editorhttps://doi.org/10.1371/journal.pone.0151813
URIhttp://hdl.handle.net/10261/150464
DOI10.1371/journal.pone.0151813
Identificadoresdoi: 10.1371/journal.pone.0151813
e-issn: 1932-6203
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