Journal
IMMUNOLOGY AND CELL BIOLOGY
Volume 85, Issue 6, Pages 463-470Publisher
WILEY
DOI: 10.1038/sj.icb.7100104
Keywords
asthma; pathogenesis; toll-like receptors
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Asthma is a major disease in the westernized world and its incidence has significantly increased over the past 40 years. Our understanding of the pathogenesis of asthma remains rudimentary, and for this reason, little has been accomplished by way of targeted intervention, either at a population level ( to reduce the overall prevalence) or at an individual level ( to treat the cause). Instead, the management strategy currently in use relies on broad-spectrum anti-inflammatory agents, generally glucocorticoids and long-acting beta 2 agonists. The recent discovery of toll-like receptors (TLRs), with their role as the initiators of the innate immune response and inflammation, suggests that modulating these receptors may be beneficial in the treatment of allergic disorders. We review here the cellular distribution of TLR in the lung and their potential contribution to the processes that promote T helper 2 (Th2) immunity and infection-induced exacerbations of allergic lung disease.
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