The LINA Study: Higher Sensitivity of Infant Compared to Maternal Eosinophil/Basophil Progenitors to Indoor Chemical Exposures

• Published in: Journal of Environmental and Public Health 2016-01, Vol.2016 (2016), p.128-137
• Main Authors: Hörnig, Friederike, Kohajda, Tibor, Röder, Stefan, Herberth, Gunda, von Bergen, Martin, Borte, Michael, Diez, Ulrike, Rolle-Kampczyk, Ulrike, Simon, Jan-C, Denburg, Judah A, Lehmann, Irina, Junge, Kristin M
• Format: Article
• Language: English
• Subjects: Adult; Age Factors; Air Pollutants - adverse effects; Air Pollution, Indoor - adverse effects; Allergies; Babies; Basophils - immunology; Bone marrow; Child, Preschool; Children & youth; Confidence intervals; Cytokines; Disease; Environmental Exposure; Eosinophils - immunology; Female; Granulocyte Precursor Cells - immunology; Hospitals; Humans; Immunology; Infant; Leukocytes, Mononuclear - immunology; Lifestyles; Male; Mothers; Pollutants; Pregnancy; Smoke - adverse effects; Studies; Tobacco smoke; VOCs; Volatile organic compounds; Volatile Organic Compounds - adverse effects; Young Adult
• ISSN: 1687-9805; 1687-9813
• DOI: 10.1155/2016/5293932

Purpose. Enhanced eosinophil/basophil (Eo/B) progenitor cell levels are known to be associated with allergic inflammation and atopy risk. The aim of the present study was to investigate the influence of different indoor exposures on the recruitment and differentiation of Eo/B progenitors in mother-child pairs. Methods. In 68 mother-child pairs of the LINA study peripheral blood mononuclear cells were used to assess Eo/B colony forming units (CFUs). Information about disease outcomes and indoor exposures was obtained from questionnaires. Indoor concentrations of volatile organic compounds (VOCs) were measured by passive sampling. Results. Infant’s Eo/B CFUs were positively associated with exposure to tobacco smoke, disinfectants, or VOCs. In contrast, for maternal Eo/B CFUs, only a few associations were seen. Higher numbers of infant Eo/B CFUs were observed in children with wheezing symptoms within the second year of life. Conclusions. We demonstrate that infant’s hematopoietic cells seem to respond with more sensitivity to environmental exposure compared to maternal cells. At least in infants, an activation of these hematopoietic cells by environmental exposure could contribute to an enhanced risk for the development of respiratory outcomes.