Histamine releasability of basophils and skin mast cells in chronic urticaria

Zuberbier, T. and Schwarz, S. and Hartmann, K. and Pfrommer, C. and Czarnetzki, B. M.. (1996) Histamine releasability of basophils and skin mast cells in chronic urticaria. Allergy, 51 (1). pp. 24-28.

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Official URL: https://edoc.unibas.ch/70868/

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In order to clarify the pathogenetic role of basophils and mast cells in chronic urticaria, histamine and leukotriene (LT)C4 release was examined in washed mixed leukocytes (n = 8) and skin mast cells (n = 5) from patients with chronic urticaria and compared with the same cells from normal controls (n = 9). Anti-IgE-stimulated basophil histamine release was significantly reduced in urticaria patients (median 2.9% vs 15.1% in normal controls), whereas histamine release to A23187, FMLP, and PAF, as well as anti-IgE-induced LTC4 release, showed no differences in both groups. In contrast, anti-IgE-stimulated skin mast cells from urticaria patients reacted similarly to those of controls (median histamine release 11.4% vs 14.2% in normal controls). Pretreatment of the cells with interleukin (IL)-3 upregulated responsiveness of basophil histamine release to anti-IgE in urticaria patients (median histamine release 14.3%), but pretreatment with the H2-antagonist cimetidine showed no effect. These data show that reduced basophil histamine releasability in chronic urticaria is not H2 mediated. It is a stimulus-, mediator-, and cell type-restricted phenomenon that can, at least partially, be reversed in the presence of the cytokine IL-3.
Faculties and Departments:03 Faculty of Medicine > Departement Biomedizin > Department of Biomedicine, University Hospital Basel > Allergy and Immunity (Hartmann)
UniBasel Contributors:Hartmann, Karin
Item Type:Article, refereed
Article Subtype:Research Article
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:10 Nov 2020 14:26
Deposited On:10 Nov 2020 14:26

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