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Review
. 2023 Jul;72(3):359-368.
doi: 10.1016/j.alit.2023.05.003. Epub 2023 May 18.

Chronic urticaria and the pathogenic role of mast cells

Daniel Elieh-Ali-Komi  1 , Martin Metz  1 , Pavel Kolkhir  1 , Emek Kocatürk  2 , Jörg Scheffel  1 , Stefan Frischbutter  1 , Dorothea Terhorst-Molawi  1 , Lena Fox  1 , Marcus Maurer  3
Affiliations
Free article
Review

Chronic urticaria and the pathogenic role of mast cells

Daniel Elieh-Ali-Komi et al. Allergol Int. 2023 Jul.
Free article

Abstract

The signs and symptoms of chronic urticaria (CU) are caused by the activation and degranulation of skin mast cells (MCs). Recent studies have added to our understanding of how and why skin MCs are involved and different in CU. Also, novel and relevant mechanisms of MC activation in CU have been identified and characterized. Finally, the use of MC-targeted and MC mediator-specific treatments has helped to better define the role of the skin environment, the contribution of specific MC mediators, and the relevance of MC crosstalk with other cells in the pathogenesis of CU. Here, we review these recent findings and their impact on our understanding of CU, with a focus on chronic spontaneous urticaria (CSU). Also, we highlight open questions, issues of controversy, and unmet needs, and we suggest what studies should be performed moving forward.

Keywords: Chronic spontaneous urticaria; FcεRI; IgE; MRGPRX2; Mast cells.

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