Bioaerosols and innate immune responses in airway diseases

Current Opinion in Allergy and Clinical Immunology
David W Hauswirth, John S Sundy

Abstract

We review the role of bioaerosols in the pathogenesis of inflammatory airway disease. The focus is on recent discoveries in innate immune responses induced by common components of bioaerosols. Common components of bioaerosols include endotoxin, peptidoglycan and beta-glucan; all of which have been associated with inflammatory airway disease. Endotoxin signaling through toll-like receptor 4 is well characterized and updated. Peptidoglycan is now known to signal through three types of molecules: toll-like receptor 2; peptidoglycan recognition proteins; and nucleotide-binding oligomerization domain molecules. Beta-glucan, a common fungal cell wall component, signals through the newly discovered receptor, dectin-1. Emerging data indicate that genetic polymorphisms influence the response to bioaerosols. Activation of the innate immune system by bioaerosols is becoming better understood. This knowledge provides an opportunity to better prevent and treat airway diseases that result from environmental exposure.

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Citations

May 31, 2011·Journal of Toxicology and Environmental Health. Part a·Edilson R Alves-FilhoJane L Dos Santos
Dec 26, 2013·International Journal of Environmental Research and Public Health·Min-Wei ChangChun-Yu Chuang
Feb 8, 2006·The Journal of Allergy and Clinical Immunology·Leena von Hertzen, Tari Haahtela

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