Targeting SphK1/S1PR3 axis ameliorates sepsis-induced multiple organ injury via orchestration of macrophage polarization and glycolysis.

Autor: Wang D; Surgical Anesthesia Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China; Scientific Research Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China., Bi X; Surgical Anesthesia Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China; Scientific Research Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China., Zhao L; Surgical Anesthesia Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China; Scientific Research Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China., Xiang S; Department of Pharmacy, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China; Shenzhen Key Laboratory of Chinese Medicine Active Substance Screening and Translational Research, Shenzhen, China., Xi W; Surgical Anesthesia Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China., Yang S; Scientific Research Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China., Wu W; Surgical Anesthesia Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China., Chen T; Department of Gastrointestinal Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China., Zheng L; Surgical Anesthesia Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China. Electronic address: zhenglei3@mail.sysu.edu.cn., Chi X; Surgical Anesthesia Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China. Electronic address: chixj@mail.sysu.edu.cn., Kang Y; Scientific Research Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China. Electronic address: kangy26@mail.sysu.edu.cn.
Jazyk: angličtina
Zdroj: Biochimica et biophysica acta. Molecular cell research [Biochim Biophys Acta Mol Cell Res] 2025 Jan; Vol. 1872 (1), pp. 119877. Date of Electronic Publication: 2024 Nov 14.
DOI: 10.1016/j.bbamcr.2024.119877
Abstrakt: Sepsis is a heterogeneous and imprecise disorder characterized by aberrant response to infection which has been accredited for detrimental impact on immune homeostasis. Recently, macrophage metabolism has been recognized as attractive targets to develop novel immunomodulatory therapy for sepsis research. However, the fine-tuning regulators dictating macrophage functions and the specific mechanisms underlying macrophage metabolic reprogramming remain largely obscure. Sphingosine-1-phosphate (S1P), a metabolic mediator of sphingolipid catabolism, predominantly formed through sphingosine kinase 1 (SphK1) catalyzing, mediates inflammation in sepsis by binding to S1P receptor 3 (S1PR3) expressed in macrophages. Here we demonstrate that SphK1/S1PR3 axis was upregulated in lipopolysaccharide (LPS)-induced macrophages and septic mice lungs, cascading the activation of proglycolytic signaling such as HIF-1α, HK2 and PFKFB3. Targeted inhibition of Sphk1 by PF-543 effectively abrogated upregulated SphK1/S1PR3 axis in vitro and in vivo. In addition, PF-543 significantly suppressed sepsis-related inflammation and multi-organ injury in vivo. Furthermore, PF-543 not only blunted key glycolytic enzymes HIF-1α, HK2, and PFKFB3 in LPS-treated macrophages but also inhibited HK2 and PFKFB3 in septic mice. Silencing or inhibiting SphK1 tempered pro-inflammatory M1 macrophages while boosted anti-inflammatory M2 macrophages. Intriguingly, S1PR3 knockdown proficiently dampened glycolysis-associated markers, retrieved LPS-modulated M1/M2 polarization and attenuated NF-κB p65 activation. In conclusion, our study provides the first evidence that PF-543 orchestrates proportional imbalance of macrophage polarization and the Warburg effect in a SphK1/S1PR3 dependent manner during sepsis, mitigating both hyperinflammation and multi-organ failure, adding a novel puzzle piece to pharmacologically exploitable therapy for sepsis.
Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Xinjin Chi reports financial support was provided by the National Natural Science Foundation of China. Yang Kang reports financial support was provided by Shenzhen Science and Technology Program. Yang Kang reports financial support was provided by Guangdong Basic and Applied Basic Research Foundation. Yang Kang reports financial support was provided by Research Start-up Fund of the Seventh Affiliated Hospital, Sun Yat-sen University. Xinjin Chi reports financial support was provided by Research Start-up Fund of the Seventh Affiliated Hospital, Sun Yat-sen University. Shijian Xiang reports financial support was provided by Shenzhen Key Laboratory of Chinese Medicine Active Substance Screening and Translational Research. Weijie Wu reports financial support was provided by Shenzhen Medical Research Fund. Tufeng Chen reports financial support was provided by Guangzhou Science and Technology Plan Project. If there are other authors, they declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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