Glycogen synthase kinase-3 (GSK-3) inhibitory activity and structure-activity relationship (SAR) studies of the manzamine alkaloids. Potential for Alzheimer's disease

作者：Hamann Mark; Alonso Diana; Martin Aparicio Ester; Fuertes Ana; Perez Puerto M Jose; Castro Ana; Morales Susana; Navarro Maria Luisa; del Monte Millan Maria; Medina Miguel; Pennaka Hari; Balaiah Akula; Peng Jiangnan; Cook Jennifer; Wahyuono Subagus; Martinez Ana^*

来源：Journal of Natural Products, 2007, 70(9): 1397-1405.

DOI：10.1021/np060092r

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.

• 出版日期2007-9