Journal
CURRENT OPINION IN PHARMACOLOGY
Volume 10, Issue 3, Pages 218-225Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.coph.2010.03.004
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Asthma is an inflammatory disease which is associated with activated T cells in the airway wall. The contribution of the T lymphocyte to inflammation in asthma has been extensively studied through descriptions of T cell subsets in the airway wall of asthmatic patients and from animal and cellular models. Allergy-driven airway disease is mediated primarily by the T helper (Th)2 cell subset. Other subsets, such as Th1, Th17, invariant natural killer T and CD8+ T cells likely contribute to the development, and possibly the progression of established disease. Resolution of inflammation is controlled in part by regulatory T cells. Therapies directed at T cells and their cytokines have been disappointing in asthma despite, in some instances, promising results on allergen challenge. This suggests that the induction of asthma may be T-cell-mediated and allergen-triggered, whereas disease may be sustained and exacerbated by other mechanisms.
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