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Platelet ITIM-containing receptors

Soriano Jerez, E. M. and Hughes, C. E. ORCID: https://orcid.org/0000-0002-9790-5820 (2025) Platelet ITIM-containing receptors. In: Gresele, P., López, J. A., Angiolillo, D. J. and Page, C. P. (eds.) Platelet Physiology I. Platelets in Thrombotic and Non-Thrombotic Disorders, 1. Springer, Cham, 319-335. ISBN 9783031963391

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To link to this item DOI: 10.1007/978-3-031-96340-7_19

Abstract/Summary

Platelets express several immunoreceptor tyrosine-based inhibitory motif (ITIM)-containing receptors which regulate platelet production, platelet activation, adhesion, and thrombus stability, and influence both haemostatic and immune responses. In this chapter we detail the structure, expression, ligands and signalling pathways of this family of receptors, and cover their biological relevance in platelets and megakaryocytes. PECAM-1, G6b-B, and LAIR-1 (megakaryocyte-specific) modulate platelet activation. CEACAM-1/2 and LILRB2 balance platelet adhesion and immune interactions. TLT-1 enhances platelet aggregation post-activation, in addition to a role in cancer progression. The downstream signalling proteins, SHP-1 and SHP-2, are essential for the inhibitory signalling of these receptors, and their loss can lead to platelet hyperactivation, increasing thrombotic risk. In this chapter we also discuss strategies for therapeutic targeting and fine-tuning of platelet reactivity. Collectively, this family of receptors play distinct roles in platelet function and regulation, presenting novel opportunities for treatments.

Item Type:Book or Report Section
Refereed:Yes
Divisions:Life Sciences > School of Biological Sciences > Biomedical Sciences
ID Code:127031
Publisher:Springer

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