نتایج جستجو برای: eosinophils
تعداد نتایج: 8372 فیلتر نتایج به سال:
Because T cell-derived cytokines may affect the functioning of eosinophils, we have investigated the capacity of human eosinophils to respond to IL-2. IL-2 was a potent chemoattractant with ED50 of 10(-12) M with eosinophils from all normal and eosinophilic donors tested. The monoclonal antibodies anti-Tac and TU27 against p55 (Tac/CD25) and p75 receptor subunits, respectively, each inhibited I...
BACKGROUND An increase in the number of mastocytes has been described in some human neoplasms, mainly in gastric and colorectal cancer. MATERIALS AND METHODS A case of diffuse-type gastric carcinoma, mainly infiltrated by eosinophils and mast cells, was studied using light and electron microscopy. RESULTS Using light microscopy, cell clusters containing one mast cell and one to three eosino...
Eosinophils are the major cellular effectors of allergic inflammation and represent an important therapeutic target. Although the genesis and activation of eosinophils have been extensively explored, little is known about their intravascular kinetics or physiological fate. This study was designed to determine the intravascular life span of eosinophils, their partitioning between circulating and...
Human eosinophils were cultured in the presence of recombinant human IL-3 for up to 14 d and their biochemical, functional, and density properties were assessed. After 3 d of culture in 10 pM IL-3, eosinophils had a viability of 70% compared with only 10% in enriched medium alone. Neither IL-1 alpha, IL-2, IL-4, tumor necrosis factor, basic fibroblast growth factor, nor platelet-derived growth ...
Chronic infection with Schistosoma mansoni induces in humans and mice a Th2-dominant immune response in which eosinophils and IgE are conspicuously elevated. Human eosinophils express IgE receptors that participate in an IgE-dependent eosinophil-mediated ADCC reaction against Schistosomula larvae in vitro. To investigate the expression of IgE receptors on murine eosinophils, they were purified ...
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