Targeting spleen tyrosine kinase (SYK): structure, mechanisms and drug discovery.

Spleen tyrosine kinase (SYK) is a crucial non-receptor tyrosine kinase involved in signaling pathways that regulate various cellular processes. It is primarily expressed in hematopoietic cells and myeloid cells, which are crucial for B-cell development, maturation and antibody production, and it is a key therapeutic target for autoimmune and allergic diseases. Overexpression of SYK is also associated with cancer and cardiovascular, cerebrovascular and neurodegenerative diseases, contributing to their initiation and progression. SYK is a promising target for drug development, and several inhibitors have already been reported. This review covers the structure and regulatory pathways of SYK, as well as its links to various diseases. It also highlights key small-molecule SYK inhibitors, their design strategies and their potential therapeutic benefits, aiming to enhance our understanding and aid in the discovery of more-effective SYK inhibitors. Copyright © 2024 Elsevier Ltd. All rights reserved.

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Shuangqian Zhang, Lilin Wang, Yingying Lu, Chuanxin Guo, Tongtong Zhang, Lan Zhang. Targeting spleen tyrosine kinase (SYK): structure, mechanisms and drug discovery. Drug discovery today. 2025 Jan;30(1):104257

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PMID: 39653169

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