首页> 外文期刊>Life sciences >METHYLPREDNISOLONE INHIBITS NEUTROPHIL-ENDOTHELIAL CELL INTERACTIONS INDUCED BY INTERLEUKIN-1-BETA UNDER FLOW CONDITIONS
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METHYLPREDNISOLONE INHIBITS NEUTROPHIL-ENDOTHELIAL CELL INTERACTIONS INDUCED BY INTERLEUKIN-1-BETA UNDER FLOW CONDITIONS

机译:甲氧肾上腺素能抑制在流动条件下白介素-1的诱导的中性粒细胞-内皮细胞的相互作用

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The effects of methylprednisolone (m-PSL) on IL-1 beta-induced neutrophil-endothelial cell interactions, which are normally mediated by increased expression of both intercellular adhesion molecule-1 (ICAM-1) and E-selectin on endothelial cells, were examined using an in vitro flow system. Human neutrophilic polymorphonuclear leukocytes (PMN) were perfused at a shear stress of 1 dyne/cm(2) on human umbilical vein endothelial cells (HUVEC) pretreated with IL-1 beta(20 U/mL) for 4 hours. Many PMN adhered to IL-1-stimulated HUVEC and then migrated beneath endothelial cell monolayers. Treatment of HUVEC with m-PSL inhibited adherence and migration of PMN in a dose dependent manner. M-PSL also inhibited IL-1 beta-induced upregulation of E-selectin and ICAM-1 on HUVEC in a dose dependent manner. These results suggest that m-PSL works as an anti-inflammatory agent through inhibiting PMN-endothelial cell interactions. [References: 25]
机译:甲基强的松龙(m-PSL)对IL-1β诱导的嗜中性白细胞-内皮细胞相互作用的影响通常是由细胞间粘附分子1(ICAM-1)和E-选择素在内皮细胞上的表达增加所介导的。使用体外流动系统进行检查。在用IL-1β(20 U / mL)预处理的人脐静脉内皮细胞(HUVEC)上以1达因/厘米(2)的剪切应力灌注人嗜中性多形核白细胞(PMN)4小时。许多PMN粘附在IL-1刺激的HUVEC上,然后迁移到内皮细胞单层下。用m-PSL治疗HUVEC以剂量依赖性方式抑制PMN的粘附和迁移。 M-PSL还以剂量依赖的方式抑制HUVEC上IL-1β诱导的E-选择素和ICAM-1的上调。这些结果表明,m-PSL通过抑制PMN-内皮细胞相互作用而充当抗炎药。 [参考:25]

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