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ID: ALA1806496
Journal: Bioorg Med Chem Lett
Title: Nothospondin, a new AP-1 inhibitory quassinoid from the Cameroonian plant Nothospondias staudtii.
Authors: Diyabalanage T, Ratnayake R, Wilson JA, Henrich CJ, Beutler JA, Colburn NH, McMahon JB, Gustafson KR.
Abstract: A high throughput screen for inhibitors of the oncogenic transcription factor activator protein-1 (AP-1) was applied to the NCI repository of natural product extracts. The liphophilic extract of the plant Nothospondias staudtii (Simaroubaceae) displayed significant AP-1 inhibition. Bioassay-guided fractionation of the extract lead to a new quassinoid named nothospondin (1), and the known compound glaucarubinone (2). The structure of 1 was elucidated by spectroscopic methods. Compounds 1 and 2 showed potent, dose-dependent AP-1 inhibition at noncytotoxic concentrations.
CiteXplore: 21733691