Novel thiocoumarins as inhibitors of TNF-α induced ICAM-1 expression on human umbilical vein endothelial cells (HUVECs) and microsomal lipid peroxidation☆☆☆
作者:Sarvesh Kumar、Brajendra K. Singh、Neerja Kalra、Vineet Kumar、Ajit Kumar、Ashok K. Prasad、Hanumantharao G. Raj、Virinder S. Parmar、Balaram Ghosh
DOI:10.1016/j.bmc.2004.12.013
日期:2005.3.1
adhesion molecule-1 (ICAM-1) on endothelial cells and on NADPH-catalyzed rat liver microsomal lipid peroxidation with a view to identify modulators for expression of cell adhesion molecules and to establish structure-activity relationship. We found that dihydroxy and diacetoxy derivatives of thiocoumarin were more potent in comparison to the corresponding coumarin derivatives in inhibiting TNF-alpha-induced
不同的香豆素/硫代香豆素衍生物,即7-羟基-4-甲基香豆素,7,8-二羟基-4-甲基香豆素,7-乙酰氧基-4-甲基香豆素,7,8-二乙酰氧基-4-甲基香豆素,7-羟基-4合成了-甲基硫代香豆素,7,8-二羟基-4-甲基硫代香豆素,7-乙酰氧基-4-甲基硫代香豆素和7,8-二乙酰氧基-4-甲基硫代香豆素并评估了它们对TNF-α诱导的细胞间黏附分子-1表达的影响( (ICAM-1)在内皮细胞和NADPH催化的大鼠肝微粒体脂质过氧化作用上,以鉴定用于表达细胞粘附分子的调节剂并建立结构-活性关系。我们发现,与相应的香豆素衍生物相比,硫香豆素的二羟基和二乙酰氧基衍生物在抑制TNF-α诱导的ICAM-1表达方面更有效。然而,与相应的硫代香豆素相比,香豆素衍生物在抑制微粒体脂质过氧化方面更有效。我们还测试了中间体化合物7,8-二苄氧基-4-甲基香豆素和7,8-二苄氧基-4-甲基硫香豆素对TNF-α诱导的