Xylopins A–F, six rare guaiane dimers with three different connecting modes from Xylopia vielana

Autor: Shi-Kai Yan, Xisong Ke, Rong Yan, Yuanqiang Guo, Huang Piao, Weidong Zhang, Yang-Guo Xie, Xianglong Zhong, Hui-Zi Jin, Ishaq Muhammad
Rok vydání: 2019
Předmět:
Zdroj: RSC Advances. 9:9235-9242
ISSN: 2046-2069
DOI: 10.1039/c9ra00347a
Popis: Six rare guaiane-type sesquiterpene dimers xylopins A–F, having three different connecting modes through two direct C–C bonds, were isolated from the roots of Xylopia vielana. Their absolute configurations were established by NOESY analysis, Cu Kα X-ray crystallography, and experimental and calculated electronic circular dichroism spectra. Flow cytometry demonstrated the fact that compound 6 arrested the cell cycle at G2 phase and concentration-dependently induced apoptosis of DU145 cells. Furthermore, the EPT2-TGC cell model, zebrafish study and western blot analysis illustrated compound 6 could induce apoptosis by efficiently inhibiting the Wnt/β-catenin signaling pathway via decreasing the expression of β-catenin.
Databáze: OpenAIRE