Organic and Biomolecular Chemistry p. 9564 - 9569 (2015)
Update date:2022-08-03
Topics:
Kim, Kyoungdo
Park, Kwang-Su
Kim, Mi Kyoung
Choo, Hyunah
Chong, Youhoon
A series of novel J147 derivatives were synthesized, and their inhibitory activities against β-amyloid (Aβ) aggregation and toxicity were evaluated by using the oligomer-specific antibody assay, the thioflavin-T fluorescence assay, and a cell viability assay in the transformed SH-SY5Y cell culture. Among the synthesized J147 derivatives, 3j with a 2,2-dicyanovinyl substituent showed the most potent inhibitory activity against Aβ42 oligomerization (IC50 = 17.3 μM) and Aβ42 fibrillization (IC50 = 10.5 μM), and disassembled the preformed Aβ42 fibrils with an EC50 of 10.2 μM. Finally, we confirmed that 3j is also effective at preventing neurotoxicity induced by Aβ42-oligomers as well as Aβ42-fibrils.
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