Childhood allergies and asthma: New insights on environmental exposures and local immunity at the lung barrier.

Childhood allergies and asthma: New insights on environmental exposures and local immunity at the lung barrier. Curr Opin Immunol. 2016 May 30;42:41-47 Authors: Smits HH, van der Vlugt LE, von Mutius E, Hiemstra PS Abstract While certain bacteria and respiratory viruses promote local inflammation and disease onset, a more diverse colonization of the different species in the (gut) microbiome may be linked to more regulatory responses and protection against asthma and allergies. These processes are also influenced in part by food intake, both targeting the composition of the gut microbiome and influencing the immune system via metabolites. Early life environmental microbial exposure also contributes to protection against asthma and allergy and is linked with an early activation of the innate immune system and the development of regulatory immune responses. Although greater mechanistic insight is needed, it is tempting to speculate that part of the environmental effect can be explained by modulation of the microbiome composition at mucosal surfaces, epithelial barrier function and/or local immunity. A review of the latest studies is provided. PMID: 27254380 [PubMed - as supplied by publisher]
Source: Current Opinion in Immunology - Category: Allergy & Immunology Authors: Tags: Curr Opin Immunol Source Type: research

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