Expression and Function of Siglec-8 in Human Eosinophils, Basophils, and Mast Cells

von Gunten, Stephan; Bochner, Bruce S (2009). Expression and Function of Siglec-8 in Human Eosinophils, Basophils, and Mast Cells. In: Pawankar, Ruby; Holgate, Stephen T; Rosenwasser, Lanny J (eds.) Allergy Frontiers: Classification and Pathomechanisms. Allergy Frontiers: Vol. 2 (pp. 297-313). Japan: Springer 10.1007/978-4-431-88315-9_19

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Siglec-8, the eighth member of the sialic acid-binding, immunoglobulin [Ig]-like lectin family, was initially discovered as a cell surface protein selectively expressed on human eosinophils. It is now know to also be expressed by mast cells and basophils. Siglec-8 engagement with specific antibodies causes apoptosis via caspase and mitochondrial-dependent pathways. For mast cells, inhibition of mediator release, but no apoptosis, is observed. Siglec-F is the closest mouse paralog to Siglec-8, and both selectively bind the sulfated glycan 6’-sulfo-sialyl Lewis X. Antibodies to Siglec-F reduce blood and tissue eosinophil numbers in vivo. This suggests that Siglec-8 may be a useful future therapeutic target for allergic and other eosinophilic disorders.

Item Type:

Book Section (Book Chapter)


04 Faculty of Medicine > Pre-clinic Human Medicine > Institute of Pharmacology

UniBE Contributor:

von Gunten, Stephan


600 Technology > 610 Medicine & health




Allergy Frontiers






Factscience Import

Date Deposited:

04 Oct 2013 15:10

Last Modified:

05 Dec 2022 14:21

Publisher DOI:


URI: (FactScience: 194976)

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