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  • Title: Reassessing the Th2 cytokine basis of asthma.
    Author: O'Byrne PM, Inman MD, Adelroth E.
    Journal: Trends Pharmacol Sci; 2004 May; 25(5):244-8. PubMed ID: 15120489.
    Abstract:
    T helper (Th) 2 cytokines, particularly interleukin 4 (IL-4), IL-5 and IL-13, might be important in the development of allergic asthma. Humanized monoclonal antibodies (hMAbs) against IL-5, and a recombinant soluble human IL-4 receptor have been developed as possible treatments for this disorder. However, these approaches have not yet proven to be successful in the treatment of persistent asthma, suggesting that neither IL-4 nor IL-5 is important in asthma pathogenesis. Indeed, there is insufficient information about the efficacy of soluble IL-4 receptor and the anti-IL-5 hMAbs in the treatment of asthma to draw firm conclusions about the importance of these Th2 cytokines. Nevertheless, because IL-4 is required for IgE production and IL-5 is required for eosinophilopoesis, these Th2 cytokines must remain important candidates for a role in the pathogenesis of allergic asthma.
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