Maternal vitamin D and E intakes during early pregnancy are associated with airway epithelial cell responses in neonates.

Autor: Miller DR; Institute of Medical Sciences, University of Aberdeen, Aberdeen, UK.; Department of Child Health, Royal Aberdeen Children's Hospital, University of Aberdeen, Aberdeen, UK., Turner SW; Department of Child Health, Royal Aberdeen Children's Hospital, University of Aberdeen, Aberdeen, UK., Spiteri-Cornish D; Institute of Medical Sciences, University of Aberdeen, Aberdeen, UK.; Department of Child Health, Royal Aberdeen Children's Hospital, University of Aberdeen, Aberdeen, UK., Scaife AR; Institute of Medical Sciences, University of Aberdeen, Aberdeen, UK., Danielian PJ; Aberdeen Maternity Hospital, Aberdeen, UK., Devereux GS; Department of Child Health, Royal Aberdeen Children's Hospital, University of Aberdeen, Aberdeen, UK., Walsh GM; Institute of Medical Sciences, University of Aberdeen, Aberdeen, UK.
Jazyk: angličtina
Zdroj: Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology [Clin Exp Allergy] 2015 May; Vol. 45 (5), pp. 920-927.
DOI: 10.1111/cea.12490
Abstrakt: Background: Antenatal factors including maternal diet may predispose to airway disease, possibly by impacting on fetal airway development.
Objective: This cohort study tested the hypothesis that maternal vitamin D and E status in early pregnancy is associated with airway epithelial cell (AEC) responses in new born infants and examined constitutive and TNFα/IL-1β, house dust mite (HDM) extract or lipopolysaccharide (LPS)-stimulated neonatal AEC responses in vitro.
Methods: Maternal dietary vitamin D and E intakes (plasma 25[OH]D3 or α-tocopherol) were characterized at 10-12 weeks gestation. Neonatal nasal AECs were collected soon after birth and cultured to tertiary passage. Constitutive and stimulated - TNFα/IL-1β, HDM extract or LPS - secretory responses (VEGF, RANTES, MCP-1, IL-17A, IFN-γ, GM-CSF, eotaxin, MIP1-α, MIP1-β, ICAM, IL-6, IL-8, IL-10, TNF) in 139 AEC cultures were quantified.
Results: AEC mediator release was greater following TNF-α/IL-1β, HDM or LPS stimulation compared to constitutive release. Increased maternal dietary vitamin D was associated with significant increases in IL-10 release by AEC after stimulation with TNF-α/IL-1β (P = 0.024) or HDM (P = 0.049). Maternal plasma α-tocopherol at 10-12 weeks gestation was positively associated with MIP1α (Spearman's rho 0.242, P = 0.009) and IL-3 (ρ 0.189, P = 0.043) responses after TNF-α/IL-1β stimulation and negatively associated with TNF (ρ -0.404, P = 0.011) and MIP1β (ρ -0.322, P = 0.046) responses after LPS stimulation.
Discussion: Neonatal AECs respond to pro-inflammatory and allergenic stimuli in vitro demonstrating their potential to function as components of the innate immune response. Our findings suggest that associations exist between maternal micronutrient intake during early pregnancy and aspects of stimulated neonatal airway epithelial cell secretory function that may in turn impact on the development of asthma and/or allergic rhinitis in later life.
(© 2015 The Authors. Clinical & Experimental Allergy Published by John Wiley & Sons Ltd.)
Databáze: MEDLINE
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