Anticomplement activity of terpenoids from the spores of Ganoderma lucidum

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Anticomplement activity of terpenoids from the spores of Ganoderma lucidum
Byung Sun Min; Jiang Jing Gao; Masao Hattori; Hyeong Kyu Lee; Young Ho Kim
Bibliographic Citation
Planta Medica, vol. 67, no. 9, pp. 811-814
Publication Year
A new lanostane-type terpenoid, lucidenic acid SP1 (1), was isolated from a CHCl3-soluble fraction of Ganoderma lucidum spores together with four other known compounds (2-5). The structure of lucidenic acid SP1 was determined to be 3β,7β-dihydroxy-4,4,14α-trimethyl-11,15-dioxo-5α-chol- 8-en-24-oic acid by spectroscopic means including 2D-NMR. Twelve triterpenes (1-12) isolated from G. lucidum spores were investigated in vitro for their anticomplementary activity. Compounds 1-5 were inactive, whereas ganoderiol F (8), ganodermanondiol (9) and ganodermanontriol (10) showed a strong anticomplement activity against the classical pathway (CP) of the complement system with IC50 values of 4.8, 41.7, and 17.2 μM, respectively. The potency of these triterpene alcohols (8-10) in inhibiting CP activity was improved when the number of hydroxymethyl groups on the side chain moiety is increased. On the other hand, the ganoderic acids 1-7, which contain a carboxyl group in the side chain, and lucidumols A and B (11, 12) had little activity on this system.
Anticomplementary activityGanoderiol FGanoderma lucidumLanostane-type triterpeneLucidenic acid SP1Polyporaceae
Georg Thieme Verlag Kg
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