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  • Title: Comparative studies of human eosinophil migration towards platelet-activating factor and leukotriene B4.
    Author: Czarnetzki BM, Csatò M.
    Journal: Int Arch Allergy Appl Immunol; 1989; 88(1-2):191-3. PubMed ID: 2540094.
    Abstract:
    Peripheral-blood polymorphonuclear cells from 36 donors with or without eosinophilia were studied for their in vitro responsiveness towards a wide range of concentrations of leukotriene B4 (LTB4) and platelet-activating factor (PAF). The mean percentage of migrated eosinophils was 17.6 for PAF, 21.1 for LTB4, 20.1 for buffer controls with cells from eosinophil patients, and 1.1 for PAF, 8.9 for LTB4 and 3.2 for buffer control with noneosinophil donors. The quantitative response of eosinophils towards PAF was lower than that towards LTB4 on a molar basis. The data showed high interindividual variations for eosinophil responsiveness towards mediators and buffer and suggest disease-dependent alterations of receptor expression or of basic metabolic activity of eosinophils as possible reasons for this variability.
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