白藜芦醇在体外活动对粒细胞和单核细胞粘附对内皮的粘附。
摘要来源:
am j clin Nutr。 1998年12月; 68(6):1208-14。 pmid: 9846848“> 9846848 M Corsi,M Bonfrate,F Ferrara,R de Caterina,L Giovannini,Bertelli
文章隶属关系:普通病理研究所,Centro di Studio Sulla Patologia Patologia Patologia Patologia del Consiglio consiglio consiglio nazionale delle delle Ricerche,米兰,意大利,意大利。 背景: 白藜芦醇是红酒中存在的植物毒素。已证明它可以保护LDL免受过氧化降解。 目标: In consideration of the low plasma concentration of orally adsorbed resveratrol (which is insufficient for antioxidant protection of LDL), we studied another effect of the compound. DESIGN: Because resveratrol is a tyrosine kinase inhibitor like other members of the tyrphostin family,我们假设它具有通过刺激的内皮细胞来改变细胞内粘附分子1(ICAM-1)和血管细胞粘附分子1(VCAM-1)表达的能力。 We studied the ability of resveratrol to inhibit such adhesion molecule expression and to block the adhesion of monocytes and granulocytes to endothelial cells. RESULTS: We showed that resveratrol, at concentrations as low as 1 micromol/L and 100 nmol/L, significantly肿瘤坏死因子α(TNF-Alpha)抑制了ICAM-1和VCAM-1的表达橄榄糖刺激的人隐静脉内皮细胞(HSVEC)。此外,我们表明白藜芦醇诱导了U937单核细胞对脂多糖刺激的HSVEC的粘附的显着抑制作用。当使用抗VCAM-1单克隆抗体代替白藜芦醇时,这种抑制与获得的抑制作用相当。白藜芦醇还显着抑制了嗜中性粒细胞对TNF-Alpha刺激的NIH/3T3 ICAM-1-1转染的细胞的粘附,而甲基 - 甲基甲基甲基甲基 - 苯基 - 苯基丙氨酸激活的嗜中性粒细胞并未显着使NIH/3T33T3 icam-1-iCAM-1-iCAM-1- class =“ sub_abstract_label”>结论: 我们的结果表明白藜芦醇对内皮细胞的活性,以及对效果的新解释,独立于其抗氧化功能。