期刊
JOURNAL OF NATURAL PRODUCTS
卷 70, 期 9, 页码 1397-1405出版社
AMER CHEMICAL SOC
DOI: 10.1021/np060092r
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Manzamine A and related derivatives isolated from a common Indonesian sponge, Acanthostrongylophora, have been identified as a new class of GSK-3 beta inhibitors. The semisynthesis of new analogues and the first structure-activity relationship studies with GSK-3 beta are also reported. Moreover, manzamine A proved to be effective in decreasing tau hyperphosphorylation in human neuroblastoma cell lines, a demonstration of its ability to enter cells and interfere with tau pathology. Inhibition studies of manzamine A against a selected panel of five different kinases related to GSK-3 beta, specifically CDK-1, PKA, CDK-5, MAPK, and GSK-3 alpha, show the specific inhibition of manzamine A on GSK-3 beta and CDK-5, the two kinases involved in tau pathological hyperphosphorylation. These results suggest that manzamine A constitutes a promising scaffold from which more potent and selective GSK-3 inhibitors could be designed as potential therapeutic agents for Alzheimer's disease.
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