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- W2604271505 abstract "Cyclosporine A (CsA) is an immunosuppressive drug used to treat focal segmental glomerulosclerosis, reduce autoimmune diseases, and prevent allograft rejection; however a limitation of CsA is that it can induce vascular and renal injury as well as hypertension. Myeloid-derived suppressor cells (MDSCs) are a heterogeneous population of immature granulocytes, macrophages, and dendritic cells that suppress pro-inflammatory immune responses by secreting anti-inflammatory cytokines, inhibiting innate and adaptive immune cells, and inducing regulatory T cells (Tregs). We hypothesized that adoptive transfer of MDSCs would prevent CsA-induced vascular and renal injury and hypertension. Daily treatment of male C57BL6/J mice for 1 week with CsA (50 mg/kg/day, i.p. injection) significantly increased systolic blood pressure (Day 7 SBP in mmHg: Con=97±2 vs. CsA=145±3, p<0.05 vs. Con), decreased aortic endothelium-dependent relaxation responses, increased aortic fibronectin levels, increased renal glomerular mesangial expansion, increased renal fibronectin levels, and decreased splenic Treg levels. Adoptive transfer of 1 million MDSCs by i.p. injection on days 1, 4, and 7 partially prevented the CsA-induced rise in systolic blood pressure (CsA+1M MDSCs=120±3 mmHg) and the detrimental vascular and renal effects. However, adoptive transfer of 2 million MDSCs fully prevented the CsA-induced hypertension (CsA+2M MDSCs=105±1 mmHg) and vascular and renal effects. The anti-hypertensive and vascular and renal protective effects of 2 million MDSCs were independent of Treg induction as splenic Treg levels remained significantly decreased. These data suggest that MDSCs can prevent the hypertension and toxicity caused by CsA independent of Tregs and may be a therapeutic target for CsA-treated patients." @default.
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- W2604271505 date "2015-09-01" @default.
- W2604271505 modified "2023-09-27" @default.
- W2604271505 title "Abstract P183: Myeloid-Derived Suppressor Cells Prevent Cyclosporine A-Induced Hypertension, Endothelial Dysfunction, and Renal Injury in Mice" @default.
- W2604271505 doi "https://doi.org/10.1161/hyp.66.suppl_1.p183" @default.
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