Cytotoxic activities of sesquiterpenoids from the aerial parts of Petasites japonicus against cancer stem cells
作者:Takahiro Matsumoto、Daisuke Imahori、Youhei Saito、Wei Zhang、Tomoe Ohta、Tatsusada Yoshida、Yuji Nakayama、Eishi Ashihara、Tetsushi Watanabe
DOI:10.1007/s11418-020-01420-x
日期:2020.9
AbstractFrom the methanolic extract of the aerial parts of Petasites japonicus, six new eremophilane-type sesquiterpenoids, petasitesterpenes I–VI were isolated together with eight known compounds including S-japonin and eremophilenolide. The chemical structures of the isolated new compounds were elucidated based on chemical/physicochemical evidence. For petasitesterpenes I and II, the absolute configurations
摘要从日本Petasites地上部分的甲醇提取物中,分离出6种新的艾美双环型倍半萜,Petasitesterpenes I-VI以及8种已知化合物,包括S-皂甙元和eremophilenoenolide。根据化学/物理化学证据阐明了分离出的新化合物的化学结构。对于Petasitesterpenes I和II,通过比较实验和预测的电子圆二色性(ECD)数据来确定绝对构型。在分离的化合物中,petasitesterpenes I,II,VI和S-japonin对人星形细胞瘤U-251MG癌细胞(非CSC)及其通过球体形成分离的癌症干细胞(CSC)均显示出细胞毒活性。此外,评估了这些化合物对乳腺癌MDA-MB-231的细胞毒活性,支持Petasitesterpene II比其他分离的化合物更有效。 图形摘要