Cord blood Tregs with stable FOXP3 expression are influenced by prenatal environment and associated with atopic dermatitis at the age of one year
D. Hinz
Department of Environmental Immunology, UFZ – Helmholtz Centre for Environmental Research Leipzig, Leipzig, Germany
Universitätsklinikum, Klinik für Dermatologie, Venerologie und Allergologie, Leipzig, Germany
Search for more papers by this authorM. Bauer
Department of Environmental Immunology, UFZ – Helmholtz Centre for Environmental Research Leipzig, Leipzig, Germany
Search for more papers by this authorS. Röder
Core Facility Studies, UFZ – Helmholtz Centre for Environmental Research Leipzig, Leipzig, Germany
Search for more papers by this authorJ. Huehn
Department of Experimental Immunology, Helmholtz Centre for Infection Research, Braunschweig, Germany
Search for more papers by this authorU. Sack
Institute for Clinical Immunology, University of Leipzig, Leipzig, Germany
Search for more papers by this authorM. Borte
Children's Hospital, Municipal Hospital “St. Georg”, Academic Teaching Hospital of the University of Leipzig, Leipzig, Germany
Search for more papers by this authorJ. C. Simon
Universitätsklinikum, Klinik für Dermatologie, Venerologie und Allergologie, Leipzig, Germany
Search for more papers by this authorCorresponding Author
I. Lehmann
Department of Environmental Immunology, UFZ – Helmholtz Centre for Environmental Research Leipzig, Leipzig, Germany
Correspondence
Dr. Irina Lehmann, Department of Environmental Immunology, UFZ – Helmholtz Centre for Environmental Research, Permoserstrasse 15, 04318 Leipzig, Germany.
Tel.: ++49 341 235 1216
Fax: ++49 341 235 1787
E-mail: [email protected]
Search for more papers by this authorG. Herberth
Department of Environmental Immunology, UFZ – Helmholtz Centre for Environmental Research Leipzig, Leipzig, Germany
Search for more papers by this authorfor the LINA study group
Search for more papers by this authorD. Hinz
Department of Environmental Immunology, UFZ – Helmholtz Centre for Environmental Research Leipzig, Leipzig, Germany
Universitätsklinikum, Klinik für Dermatologie, Venerologie und Allergologie, Leipzig, Germany
Search for more papers by this authorM. Bauer
Department of Environmental Immunology, UFZ – Helmholtz Centre for Environmental Research Leipzig, Leipzig, Germany
Search for more papers by this authorS. Röder
Core Facility Studies, UFZ – Helmholtz Centre for Environmental Research Leipzig, Leipzig, Germany
Search for more papers by this authorJ. Huehn
Department of Experimental Immunology, Helmholtz Centre for Infection Research, Braunschweig, Germany
Search for more papers by this authorU. Sack
Institute for Clinical Immunology, University of Leipzig, Leipzig, Germany
Search for more papers by this authorM. Borte
Children's Hospital, Municipal Hospital “St. Georg”, Academic Teaching Hospital of the University of Leipzig, Leipzig, Germany
Search for more papers by this authorJ. C. Simon
Universitätsklinikum, Klinik für Dermatologie, Venerologie und Allergologie, Leipzig, Germany
Search for more papers by this authorCorresponding Author
I. Lehmann
Department of Environmental Immunology, UFZ – Helmholtz Centre for Environmental Research Leipzig, Leipzig, Germany
Correspondence
Dr. Irina Lehmann, Department of Environmental Immunology, UFZ – Helmholtz Centre for Environmental Research, Permoserstrasse 15, 04318 Leipzig, Germany.
Tel.: ++49 341 235 1216
Fax: ++49 341 235 1787
E-mail: [email protected]
Search for more papers by this authorG. Herberth
Department of Environmental Immunology, UFZ – Helmholtz Centre for Environmental Research Leipzig, Leipzig, Germany
Search for more papers by this authorfor the LINA study group
Search for more papers by this authorEdited by: Hans-Uwe Simon
Abstract
Background:
Regulatory T cells (Tregs) with stable FOXP3 expression are characterized by a specific demethylated region in the FOXP3 gene (Treg-specific demethylated region, TSDR). The aim of this study was to analyse the influence of prenatal factors on cord blood Treg numbers, as detected by changes in the TSDR demethylation, and the subsequent risk for allergic diseases.
Methods:
Analyses were performed within the LINA study in blood samples from pregnant women (34th gestational week) and in cord blood (n = 346 mother–child pairs). Treg numbers were detected via DNA demethylation in the FOXP3 TSDR. At age 1, total and specific IgE was measured in children's blood. In addition, maternal cytokine production (Th1/Th2/Th17) was analysed. Exposure and disease outcomes were assessed by questionnaires.
Results:
Boys had lower Treg numbers compared with girls (P < 0.001). Parental atopy history, particularly maternal hay fever and paternal asthma were related to lower Treg numbers in cord blood (adj. MR = 0.81, 95% CI = 0.68–0.97; adj. MR = 0.60, 95% CI = 0.45–0.81). Maternal cytokines (IL-13, IL-17E and IFN-γ) and maternal smoking/exposure to tobacco smoke during pregnancy were also associated with decreased cord blood Treg numbers (adj. MR = 0.89, 95% CI = 0.97–1.00). Children with lower Treg numbers at birth had a higher risk to develop atopic dermatitis (adj. OR = 1.55, 95% CI = 1.00–2.41) and sensitization to food allergens (adj. OR = 1.55, 95% CI = 1.06–2.25) during the first year of life.
Conclusions:
These results indicate that both genetic and environmental factors presumably influence the development of foetal Tregs. Low cord blood Treg numbers may predict early atopic dermatitis.
Supporting Information
Filename | Description |
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all2767-sup-0001-figs1.docxWord document, 34.5 KB | Figure S1. Flow chart of the LINA study population with the analysed subcohort. |
all2767-sup-0002-figs2.docxWord document, 138.4 KB | Figure S2. Regression model with all factors possibly influencing cord blood Treg numbers. |
all2767-sup-0003-tables1.docxWord document, 17.2 KB | Table S1. Relationship between parental history of atopy and Treg numbers in cord blood as detected by demethylation of TSDR in the FOXP3 gene. |
all2767-sup-0004-tables2.docxWord document, 16.1 KB | Table S2. Relationship between maternal prenatal exposure and Treg numbers in cord blood as detected by demethylation of TSDR in the FOXP3 gene. |
all2767-sup-0005-tables3.docxWord document, 16.5 KB | Table S3. Relationship between PHA-/LPS-stimulated cytokine production in maternal blood during pregnancy and number of Tregs in cord blood as detected by demethylation of TSDR in the FOXP3 gene. |
all2767-sup-0006-tables4.docxWord document, 15.3 KB | Table S4. Cytokine production during pregnancy in PHA-/LPS-stimulated blood samples. Values are presented as medians and the interquartile range. |
all2767-sup-0007-tables5.docxWord document, 16.5 KB | Table S5. Relationship between Treg numbers in cord blood as detected by demethylation of TSDR in the FOXP3 gene and the development of allergy as well as sensitisation to food or inhalant specific allergens in the first year of life. |
all2767-sup-0008-tables6.docxWord document, 19.2 KB | Table S6. (a) Association between maternal history of atopy and PHA induced maternal cytokine production in pregnancy. Cytokine concentrations are presented as medians and interquartile range (IQR). (b) Association between maternal history of atopy and PHA induced maternal cytokine production in pregnancy. Cytokine concentrations are presented as medians and interquartile range (IQR). |
all2767-sup-0009-tables7.docxWord document, 20.7 KB | Table S7. (a) Association between exposures during pregnancy and maternal cytokine production upon PHA-stimulation. Cytokine concentrations are presented as medians and interquartile range (IQR). (b) Association between exposures during pregnancy and maternal cytokine production upon PHA-stimulation. Cytokine concentrations are presented as medians and interquartile range (IQR). (c) Association between exposures during pregnancy and maternal cytokine production upon PHA-stimulation. Cytokine concentrations are presented as medians and interquartile range (IQR). |
all2767-sup-0010-Suppl_Material.docWord document, 415.5 KB | Appendix S1. Methods and Results. |
Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
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