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- W2427652926 abstract "Spinal cord injury (SCI) causes long‐term disability and has no clinically effective treatment. After SCI, adenosine triphosphate (ATP) may be released from neuronal cells and astrocytes in large amounts. Our previous studies have shown that the extracellular release of ATP increases the phosphorylation of cytosolic phospholipase A2 (cPLA 2 ) and triggers the rapid release of arachidonic acid (AA) and prostaglandin E2 (PGE2) via the stimulation of epidermal growth factor receptor (EGFR) and the downstream phosphorylation of extracellular‐regulated protein kinases 1 and 2. Leptin, a glycoprotein, induces the activation of the Janus kinase (JAK2)/signal transducers and activators of transcription‐3 (Stat3) pathway via the leptin receptor. In this study, we found that 1) prolonged leptin treatment suppressed the ATP‐stimulated release of AA and PGE2 from cultured spinal cord astrocytes; 2) leptin elevated the expression of caveolin‐1 (Cav‐1) via the JAK2/Stat3 signaling pathway; 3) Cav‐1 blocked the interaction between Src and EGFR, thereby inhibiting the phosphorylation of EGFR and cPLA 2 and attenuating the release of AA or PGE2; 4) pretreatment with leptin decreased ;he level of apoptosis and the release of interleukin‐6 from cocultured neurons and astrocytes; and 5) leptin improved the recovery of locomotion in mice after SCI. Our results highlight leptin as a promising therapeutic agent for SCI. © 2016 Wiley Periodicals, Inc." @default.
- W2427652926 created "2016-06-24" @default.
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- W2427652926 date "2016-06-18" @default.
- W2427652926 modified "2023-10-06" @default.
- W2427652926 title "Leptin suppresses adenosine triphosphate-induced impairment of spinal cord astrocytes" @default.
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- W2427652926 doi "https://doi.org/10.1002/jnr.23795" @default.
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