Isolation and identification of oxygenated lanostane-type triterpenoids from the fungus Ganoderma lucidum

Ganoderma lucidum is widely used throughout the world as a form of traditional medicine. Phytochemical investigation of the chloroform (CHCl3) extract of the fruiting body of G. lucidum resulted in the isolation of four lanostane-type triterpenoids. Based on various spectroscopic data, the isolated triterpenoids were identified as highly oxygenated lanostane-type triterpenoids, including four new compounds (1-4). Furthermore, in vitro bioassays using an adriamycin (ADM)-resistant human breast adenocarcinoma cell line (MCF-7/ADR) and measuring the nitric oxide production in LPS-stimulated macrophages showed that the isolated triterpenoids had no inhibitory effects on p-glycoprotein (p-gp). (C) 2016 Phytochemical Society of Europe. Published by Elsevier B.V. All rights reserved.