Anti-Adipogenic Lanostane-Type Triterpenoids from the Edible and Medicinal Mushroom
Overview
Affiliations
Our previous research has shown that lanostane triterpenoids from exhibit significant anti-adipogenesis effects. In order to obtain more structurally diverse lanostane triterpenoids to establish a structure-activity relationship, we continued the study of lanostane triterpenoids from the fruiting bodies of , and forty highly oxygenated lanostane-type triterpenoinds (-), including sixteen new compounds (-), were isolated. Their structures were elucidated using NMR spectra, X-ray crystallographic analysis, and Mosher's method. In addition, some of their parts were evaluated to determine their anti-adipogenesis activities in the 3T3-L1 cell model. The results showed that compounds , , , and exhibited stronger anti-adipogenesis effects than the positive control (LiCl, 20 mM) at the concentration of 20 μM. Compounds and could significantly reduce the lipid accumulation during the differentiation process of 3T3-L1 cells, comparable to the untreated group. Their IC values were 6.42 and 5.39 μM, respectively. The combined results of our previous and present studies allow us to establish a structure-activity relationship of lanostane triterpenoids, indicating that the A--23→26 lactone skeleton could play a key role in anti-adipogenesis activity.
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