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首页> 外文期刊>Journal of Cellular Physiology >Fibroblast growth factor and heparin protect endothelial cells from the effects of interleukin 1.
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Fibroblast growth factor and heparin protect endothelial cells from the effects of interleukin 1.

机译:纤维母细胞生长因子和肝素保护内皮细胞白介素的影响1.

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Vascular endothelium is involved in both active and passive processes in haemostasis, but inflammatory cytokines such as interleukin 1 (IL-1) and tumour necrosis factor (TNF) have been reported to convert the comparatively inert endothelial cell to an inflammatory state. Acidic fibroblast growth factor (aFGF) in the presence of heparin has effects opposite to IL-1 on cultured human umbilical vein endothelial cells (HUVEC); therefore, we have investigated the modulation of IL-1-induced effects by the c combination of aFGF and heparin (aFGF/heparin). First passage HUVEC were cultured for 6 days in the presence of 20% human serum with and without the addition of 625 pM human recombinant aFGF (hr aFGF) and 7 microM heparin. On day 5, recombinant IL-1 beta was included for 24 h. The following day the cells were washed and measurements made of the release of prostacyclin, von Willebrand factor, plasminogen activator inhibitor type 1, and thrombospondin, both in the resting state and following stimulation for60 min with 1 U/ml thrombin. Tissue-type plasminogen activator was assayed in HUVEC lysates. Similar experiments were performed to assess effects on the expression of vascular adhesion molecule, intracellular adhesion molecule, and E-selectin using an ELISA on cells in situ. This study indicates that aFGF/heparin in the culture medium of HUVEC abrogates the measured responses to IL-1. These data imply that routine endothelial cell culture with aFGF/heparin may cause artefacts, the effects of FGF and Il-1 may involve common pathways, and FGF/heparin may offer an approach to design therapeutics to counter the adverse effects of IL-1.
机译:血管内皮细胞是参与活动在止血和被动的过程,但炎性细胞因子如白介素1(il - 1)和肿瘤坏死因子(TNF)据报道,把相对惰性内皮细胞炎症状态。纤维母细胞生长因子(aFGF)的存在相反的il - 1在肝素的影响人类脐静脉内皮细胞培养(HUVEC);调制IL-1-induced效果的caFGF和肝素(aFGF /肝素)。首次通过HUVEC培养了6天20%人血清的存在增加625点人类重组aFGF(人力资源aFGF)和7 microM肝素。il - 1β是包括24 h。以下天,细胞被清洗和测量环前列腺素的释放,血管性血友病因子、纤溶酶原激活物抑制剂1型,血小板反应蛋白,在静息状态和刺激后60个分钟1 U /毫升凝血酶。化验在HUVEC溶解产物。进行评估的影响的血管粘附分子的表达,细胞粘附分子,E-selectin使用原位细胞ELISA。表明aFGF /肝素的培养基测量反应HUVEC的废除il - 1。细胞培养与aFGF /肝素可能会导致文物,FGF和il - 1的影响包括常见的途径和FGF /肝素提供一种方法来设计治疗计数器il - 1的不利影响。

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