期刊
JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY
卷 115, 期 3, 页码 459-465出版社
MOSBY-ELSEVIER
DOI: 10.1016/j.jaci.2004.11.053
关键词
IgE; omalizumab; anti-inflammatory; Fc epsilon RI; Fc epsilon RII; T cell; B cell; allergic inflammation
Anti-IgE therapy with omalizumab reduces serum levels of free IgE and downregulates expression of IgE receptors (Fc is an element of RI) on mast cells and basophils. In the airways of patients with mild allergic asthma, omalizumab reduces Fc is an element of RI+ and IgE(+) cells and causes a profound reduction in tissue eosinophilia, together with reductions in submucosal T-cell and B-cell numbers. In patients with seasonal allergic rhinitis, omalizumab inhibits the allergen-induced seasonal increases in circulating and tissue eosinophils. Omalizumab decreases Fc is an element of RI expression on circulating dendritic cells, which might lead to a reduction in allergen presentation, T(H)2 cell activation, and proliferation. As a systemic anti-IgE agent, omalizumab has demonstrated clinical efficacy in patients with moderate and severe allergic asthma and in those with seasonal and perennial allergic rhinitis, as well as in patients with concomitant allergic asthma and allergic rhinitis. The anti-inflammatory effects of omalizumab at different sites of allergic inflammation and the clinical benefits of anti-IgE therapy in patients with allergic asthma and allergic rhinitis emphasize the fundamental importance of IgE in allergic inflammation.
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