Triterpenoid saponins with anti-inflammatory activities from Ilex pubescens roots
作者:Peng Wu、Hui Gao、Jian-Xin Liu、Liang Liu、Hua Zhou、Zhong-Qiu Liu
DOI:10.1016/j.phytochem.2016.11.012
日期:2017.2
Seven triterpenoid saponins, named ilexsaponin I-O, along with twelve known ones, were isolated from the roots of Ilex pubescens. The structures of all compounds were elucidated by use of extensive spectroscopic methods (IR, HR-ESI-MS, and 1D and 2D NMR). Sugar residues obtained after acid hydrolysis were identified by TLC and HPLC. The in vitro anti-inflammatory effects of the triterpenoid saponins
从毛冬青的根中分离出七种三萜皂苷,命名为 ilexsaponin IO,以及 12 种已知的三萜皂苷。通过使用广泛的光谱方法(IR、HR-ESI-MS 以及 1D 和 2D NMR)阐明了所有化合物的结构。酸水解后得到的糖残留物通过TLC和HPLC鉴定。还在脂多糖 (LPS) 刺激的 RAW 264.7 巨噬细胞中评估了三萜皂苷的体外抗炎作用。在分离的皂苷中,七种化合物分别通过抑制诱导型 NO 合酶 (iNOS) 和环氧合酶-2 (COX-2) 的表达来抑制 LPS 诱导的一氧化氮 (NO) 和前列腺素 E2 (PGE2) 的产生。 LPS 刺激的 RAW 264.7 细胞。