Cargando…

Allergenicity of partially hydrolyzed whey and casein formulas evaluated by ImmunoCAP inhibition assay and basophil activation test

BACKGROUND: When exclusive breastfeeding is not possible, partially hydrolyzed formula (PHF) is often used as a starter formula for infants. Some children develop allergic symptoms, including anaphylaxis, after the first intake of cow protein. Therefore, the tolerability of PHF in infants with cow&#...

Descripción completa

Detalles Bibliográficos
Autores principales: Matsubara, Takeshi, Ishikawa, Fuka, Inuo, Chisato, Fujita, Mayumi, Tsukahara, Ayumi, Koyama, Takahiro, Iwamoto, Hiroshi, Miyaji, Kazuhiro
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10403286/
https://www.ncbi.nlm.nih.gov/pubmed/37546176
http://dx.doi.org/10.3389/falgy.2023.1207924
_version_ 1785085032817229824
author Matsubara, Takeshi
Ishikawa, Fuka
Inuo, Chisato
Fujita, Mayumi
Tsukahara, Ayumi
Koyama, Takahiro
Iwamoto, Hiroshi
Miyaji, Kazuhiro
author_facet Matsubara, Takeshi
Ishikawa, Fuka
Inuo, Chisato
Fujita, Mayumi
Tsukahara, Ayumi
Koyama, Takahiro
Iwamoto, Hiroshi
Miyaji, Kazuhiro
author_sort Matsubara, Takeshi
collection PubMed
description BACKGROUND: When exclusive breastfeeding is not possible, partially hydrolyzed formula (PHF) is often used as a starter formula for infants. Some children develop allergic symptoms, including anaphylaxis, after the first intake of cow protein. Therefore, the tolerability of PHF in infants with cow's milk allergy (CMA) is important information. Partially hydrolyzed whey formula (PHWF) is well characterized, but those containing both whey and casein are also available. We evaluated the characteristics of two whey and casein PHFs, PHF1 and PHF2, in vitro and ex vivo, and compared them with a PHWF, PHWF1. METHODS: Residual antigenicity of β-lactoglobulin (β-LG) and casein in the formulas was measured using ELISA. The molecular weight profile was determined using high-pressure liquid chromatography. IgE reactivity and allergenic activity of the formulas were evaluated by ImmunoCAP inhibition assay and by basophil activation test using blood from patients with CMA, respectively. RESULTS: All the participants (n = 10) had casein-specific IgE. The antigenicity of β-LG in PHF1 was similar to that in PHWF1, but it was slightly higher than that in PHWF1 for casein. PHF1 had a higher IgE reactivity than PHWF1. However, PHF1 and PHWF1 had a similar ability to activate basophils. PHF2 had lower antigenicity of casein and β-LG, IgE reactivity and basophil activation than PHWF1. CONCLUSION: These results suggest that the tolerability of PHF1 and PHF2 in patients with CMA is similar to and higher than that of PHWF1, respectively, and that the degree of IgE binding to PHFs does not necessarily correspond to basophil activation.
format Online
Article
Text
id pubmed-10403286
institution National Center for Biotechnology Information
language English
publishDate 2023
publisher Frontiers Media S.A.
record_format MEDLINE/PubMed
spelling pubmed-104032862023-08-05 Allergenicity of partially hydrolyzed whey and casein formulas evaluated by ImmunoCAP inhibition assay and basophil activation test Matsubara, Takeshi Ishikawa, Fuka Inuo, Chisato Fujita, Mayumi Tsukahara, Ayumi Koyama, Takahiro Iwamoto, Hiroshi Miyaji, Kazuhiro Front Allergy Allergy BACKGROUND: When exclusive breastfeeding is not possible, partially hydrolyzed formula (PHF) is often used as a starter formula for infants. Some children develop allergic symptoms, including anaphylaxis, after the first intake of cow protein. Therefore, the tolerability of PHF in infants with cow's milk allergy (CMA) is important information. Partially hydrolyzed whey formula (PHWF) is well characterized, but those containing both whey and casein are also available. We evaluated the characteristics of two whey and casein PHFs, PHF1 and PHF2, in vitro and ex vivo, and compared them with a PHWF, PHWF1. METHODS: Residual antigenicity of β-lactoglobulin (β-LG) and casein in the formulas was measured using ELISA. The molecular weight profile was determined using high-pressure liquid chromatography. IgE reactivity and allergenic activity of the formulas were evaluated by ImmunoCAP inhibition assay and by basophil activation test using blood from patients with CMA, respectively. RESULTS: All the participants (n = 10) had casein-specific IgE. The antigenicity of β-LG in PHF1 was similar to that in PHWF1, but it was slightly higher than that in PHWF1 for casein. PHF1 had a higher IgE reactivity than PHWF1. However, PHF1 and PHWF1 had a similar ability to activate basophils. PHF2 had lower antigenicity of casein and β-LG, IgE reactivity and basophil activation than PHWF1. CONCLUSION: These results suggest that the tolerability of PHF1 and PHF2 in patients with CMA is similar to and higher than that of PHWF1, respectively, and that the degree of IgE binding to PHFs does not necessarily correspond to basophil activation. Frontiers Media S.A. 2023-07-21 /pmc/articles/PMC10403286/ /pubmed/37546176 http://dx.doi.org/10.3389/falgy.2023.1207924 Text en © 2023 Matsubara, Ishikawa, Inuo, Fujita, Tsukahara, Koyama, Iwamoto and Miyaji. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY) (https://creativecommons.org/licenses/by/4.0/) . The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Allergy
Matsubara, Takeshi
Ishikawa, Fuka
Inuo, Chisato
Fujita, Mayumi
Tsukahara, Ayumi
Koyama, Takahiro
Iwamoto, Hiroshi
Miyaji, Kazuhiro
Allergenicity of partially hydrolyzed whey and casein formulas evaluated by ImmunoCAP inhibition assay and basophil activation test
title Allergenicity of partially hydrolyzed whey and casein formulas evaluated by ImmunoCAP inhibition assay and basophil activation test
title_full Allergenicity of partially hydrolyzed whey and casein formulas evaluated by ImmunoCAP inhibition assay and basophil activation test
title_fullStr Allergenicity of partially hydrolyzed whey and casein formulas evaluated by ImmunoCAP inhibition assay and basophil activation test
title_full_unstemmed Allergenicity of partially hydrolyzed whey and casein formulas evaluated by ImmunoCAP inhibition assay and basophil activation test
title_short Allergenicity of partially hydrolyzed whey and casein formulas evaluated by ImmunoCAP inhibition assay and basophil activation test
title_sort allergenicity of partially hydrolyzed whey and casein formulas evaluated by immunocap inhibition assay and basophil activation test
topic Allergy
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10403286/
https://www.ncbi.nlm.nih.gov/pubmed/37546176
http://dx.doi.org/10.3389/falgy.2023.1207924
work_keys_str_mv AT matsubaratakeshi allergenicityofpartiallyhydrolyzedwheyandcaseinformulasevaluatedbyimmunocapinhibitionassayandbasophilactivationtest
AT ishikawafuka allergenicityofpartiallyhydrolyzedwheyandcaseinformulasevaluatedbyimmunocapinhibitionassayandbasophilactivationtest
AT inuochisato allergenicityofpartiallyhydrolyzedwheyandcaseinformulasevaluatedbyimmunocapinhibitionassayandbasophilactivationtest
AT fujitamayumi allergenicityofpartiallyhydrolyzedwheyandcaseinformulasevaluatedbyimmunocapinhibitionassayandbasophilactivationtest
AT tsukaharaayumi allergenicityofpartiallyhydrolyzedwheyandcaseinformulasevaluatedbyimmunocapinhibitionassayandbasophilactivationtest
AT koyamatakahiro allergenicityofpartiallyhydrolyzedwheyandcaseinformulasevaluatedbyimmunocapinhibitionassayandbasophilactivationtest
AT iwamotohiroshi allergenicityofpartiallyhydrolyzedwheyandcaseinformulasevaluatedbyimmunocapinhibitionassayandbasophilactivationtest
AT miyajikazuhiro allergenicityofpartiallyhydrolyzedwheyandcaseinformulasevaluatedbyimmunocapinhibitionassayandbasophilactivationtest