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There are a large number of people worldwide who suffer from osteoporosis, which imposes a huge economic burden, so it is necessary to explore the underlying mechanisms to achieve better supportive and curative care outcomes. Sphingosine kinase (SphK) is an enzyme that plays a crucial role in the synthesis of sphingosine-1-phosphate (S1P). S1P with paracrine and autocrine activities that act through its cell surface S1P receptors (S1PRs) and intracellular signals. In osteoporosis, S1P is indispensable for both normal and disease conditions. S1P has complicated roles in regulating osteoblast and osteoclast, respectively, and there have been exciting developments in understanding how SphK/S1P/S1PR signaling regulates these processes in response to osteoporosis therapy. Here, we review the proliferation, differentiation, apoptosis, and functions of S1P, specifically detailing the roles of S1P and S1PRs in osteoblasts and osteoclasts. Finally, we focus on the S1P-based therapeutic approaches in bone metabolism, which may provide valuable insights into potential therapeutic strategies for osteoporosis. Copyright © 2023 The Authors. Published by Elsevier Masson SAS.. All rights reserved.


Xuefeng Xu, Yi Han, Tianxin Zhu, Faxin Fan, Xin Wang, Yuqing Liu, Duosheng Luo. The role of SphK/S1P/S1PR signaling pathway in bone metabolism. Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie. 2023 Dec 31;169:115838

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PMID: 37944444

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