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Deprecated: Implicit conversion from float 247.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Med+Sci+Monit 2018 ; 24 (ä): 2720-7 Nephropedia Template TP
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Ouabain Attenuates Sepsis-Induced Immunosuppression in Mice by Activation and Anti-Apoptosis of T Cells #MMPMID29717720
Niu R; Gao H; Zhou Y; Zhang J
Med Sci Monit 2018[]; 24 (ä): 2720-7 PMID29717720show ga
Background: Sepsis is known to trigger impaired T cell function, which relates to immunosuppression, contributing to refractory infection and high mortality. The mechanisms of T cell recovery remain to be elucidated, and novel and effective therapeutics for sepsis are needed. Ouabain, a small molecule of cardiac glycosides, can reverse immunoparalysis in many settings. Material/Methods: Our study was designed to determine if ouabain can relieve sepsis by modulating T cell response and related pathways. The ?two-hit? model of sepsis was applied, established by intraperitoneally LPS injection 3 days after cecal ligation puncture (CLP-LPS). Ouabain was administered to mice intravenously (0.1 mg/kg) after in vivo LPS stimulation every day for 4 days. The survival rate of mice, level of serum cytokines, percentage of activated T cells, apoptosis of T cells, and possibly related genes were assessed. Results: The results suggest that ouabain administration after establishment of the CLP-LPS model improved survival rates, elevated pro-inflammatory cytokines, and decreased anti-inflammatory cytokines in serum. More activated T cells and fewer apoptotic T cells were detected in the spleens after treatment with ouabain. Such changes might correlate with the genes of Bcl-2, PUMA, IRAK-M, and SOCS1. Conclusions: Taken together, our data show ouabain is a T cell mediator during sepsis recovery.