Journal
EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY
Volume 46, Issue 7, Pages 3112-3117Publisher
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.ejmech.2011.04.006
Keywords
Cyathane diterpenoids; Scabronine K; Scabronine L; PC12 cells; Sarcodon scabrosus; Neurite outgrowth-promoting activity
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Funding
- National Natural Science Foundation of China [30370019, 30670221, 30770237]
- Program for New Century Excellent Talents in University [NCET-05-0852]
- Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry
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Two novel cyathane diterpenoids, designated scabronines K (1) and L (2), were isolated from the fruiting bodies of the basidiomycete Sarcodon scabrosus together with four known analogues, sarcodonins G (3), A (5), M (6), and scabronine H (4). Their structures were elucidated on the basis of extensive spectroscopic analysis including 2D-NMR (HMBC, HSQC. ROESY, H-1,H-1-COSY) and MS experiments. The isolated compounds were evaluated for nerve growth factor (NGF)-mediated neurite outgrowth using rat pheochromocytoma (PC12) cells as a model system of neuronal differentiation. Among these compounds, only sarcodonins G and A (3 and 5) at 25 mu M showed significant neurite outgrowth (neuritegenesis)-promoting activity in the presence of 20 ng/mL NGF after 24 h treatment. Their structure-neurite inducing activity relationship was also discussed. (C) 2011 Elsevier Masson SAS. All rights reserved.
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