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Cord blood allergen-specific IgE is associated with reduced IFN-gamma production by cord blood cells: the protection against allergy-study in rural environments (PASTURE) study


Pfefferle, P I; Sel, S; Ege, M J; Büchele, G; Blümer, N; Krauss-Etschmann, S; Herzum, I; Albers, C E; Lauener, R P; Roponen, M; Hirvonen, M R; Vuitton, D A; Riedler, J; Brunekreef, B; Dalphin, J C; Braun-Fahrländer, C; Pekkanen, J; von Mutius, E; Renz, H (2008). Cord blood allergen-specific IgE is associated with reduced IFN-gamma production by cord blood cells: the protection against allergy-study in rural environments (PASTURE) study. Journal of Allergy and Clinical Immunology, 122(4):711-716.

Abstract

BACKGROUND: It is currently discussed whether allergic sensitization may start in utero under the influence of the maternal immune system and environmental determinants. OBJECTIVE: To investigate the relationship between allergen-specific cord blood (CB) IgE levels, parental sensitization, CB cytokine production, and environmental influences. METHODS: As part of an ongoing multicenter birth cohort study, allergen-specific IgE antibodies against 20 common seasonal, perennial, and food allergens were measured in blood samples from 922 neonates, 922 mothers, and 835 fathers. Supernatants from stimulated CB cells were assessed for the production of IL-5, IFN-gamma, IL-10, and TNF-alpha. RESULTS: Allergen-specific IgE antibodies were detectable in 23.9% of newborns. Contamination with maternal serum was excluded by several means of analyses, including the absence of IgA antibodies. Clear correlation between maternal and fetal IgE was found only for hen's egg, cow's milk, and soybean allergen. Fetal IgE correlated negatively with the level of IFN-gamma production, but not with IL-5 and IL-10. CONCLUSION: Allergen-specific IgE antibodies most probably of fetal origin are detectable in CB and correlate with a lowered CB IFN-gamma production.

BACKGROUND: It is currently discussed whether allergic sensitization may start in utero under the influence of the maternal immune system and environmental determinants. OBJECTIVE: To investigate the relationship between allergen-specific cord blood (CB) IgE levels, parental sensitization, CB cytokine production, and environmental influences. METHODS: As part of an ongoing multicenter birth cohort study, allergen-specific IgE antibodies against 20 common seasonal, perennial, and food allergens were measured in blood samples from 922 neonates, 922 mothers, and 835 fathers. Supernatants from stimulated CB cells were assessed for the production of IL-5, IFN-gamma, IL-10, and TNF-alpha. RESULTS: Allergen-specific IgE antibodies were detectable in 23.9% of newborns. Contamination with maternal serum was excluded by several means of analyses, including the absence of IgA antibodies. Clear correlation between maternal and fetal IgE was found only for hen's egg, cow's milk, and soybean allergen. Fetal IgE correlated negatively with the level of IFN-gamma production, but not with IL-5 and IL-10. CONCLUSION: Allergen-specific IgE antibodies most probably of fetal origin are detectable in CB and correlate with a lowered CB IFN-gamma production.

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Additional indexing

Item Type:Journal Article, refereed, further contribution
Communities & Collections:04 Faculty of Medicine > University Children's Hospital Zurich > Medical Clinic
Dewey Decimal Classification:610 Medicine & health
Language:English
Date:2008
Deposited On:04 Mar 2009 20:58
Last Modified:05 Apr 2016 13:03
Publisher:Elsevier
ISSN:0091-6749
Publisher DOI:https://doi.org/10.1016/j.jaci.2008.06.035
PubMed ID:18718651
Permanent URL: https://doi.org/10.5167/uzh-14501

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