isomeric pregnadienedione steroids were investigated against lipopolysaccharide-induced inflammatory reaction in RAW264.7 mouse macrophages. Our results showed that both guggulsterones inhibited the production of NO in macrophages treated with lipopolysaccharide, with IC50 values ranging from 3.0 to 6.7 μM. E-GS exerted higher efficacy than Z-GS, and its anti-inflammatory effects was mediated through inhibition
Guggulsterone是一种天然存在于移栖植物中的
生物活性植物
固醇。它以各种形式存在,其活性化合物包括异构体顺式古古甾酮(E-GS)和反式古古甾酮(Z-GS)。在这项研究中,这两种异构的孕二烯
酮类固醇的抗炎作用针对RAW264.7小鼠巨噬细胞中脂
多糖诱导的炎症反应进行了研究。我们的研究结果表明,两种古古甾酮均可以抑制经脂
多糖处理的巨噬细胞中NO的产生,IC50值范围为3.0至6.7μM。E-GS具有比Z-GS更高的功效,并且其抗炎作用是通过抑制iNOS和COX-2的表达来介导的。