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文献信息
A Novel, Multi-Target Natural Drug Candidate, Matrine, Improves Cognitive Deficits in Alzheimer’s Disease Transgenic Mice by Inhibiting Aβ Aggregation and Blocking the RAGE/Aβ Axis
The treatment of AD is a topic that has puzzled researchers for many years. Current mainstream theories still consider Aβ to be the most important target for the cure of AD. In this study, we attempted to explore multiple targets for AD treatments with the aim of identifying a qualified compound that could both inhibit the aggregation of Aβ and block the RAGE/Aβ axis. We believed that a compound that targets both Aβ and RAGE may be a feasible strategy for AD treatment. A novel and small natural compound, Matrine (Mat), was identified by high-throughput screening of the main components of traditional Chinese herbs used to treat dementia. Various experimental techniques were used to evaluate the effect of Mat on these two targets both in vitro and in AD mouse model. Mat could inhibit Aβ42-induced cytotoxicity and suppress the Aβ/RAGE signaling pathway in vitro. Additionally, the results of in vivo evaluations of the effects of Mat on the two targets were consistent with the results of our in vitro studies. Furthermore, Mat reduced proinflammatory cytokines and Aβ deposition and attenuated the memory deficits of AD transgenic mice. We believe that this novel, multi-target strategy to inhibit both Aβ and RAGE, is worthy of further exploration. Therefore, our future studies will focus on identifying even more effective multi-target compounds for the treatment of AD based on the molecular structure of Mat.
... After culturing for 1 day to allow for cell attachment, the cells were treated with 10-μM fresh Aβ42
and Aβ42 oligomers, respectively, adding with 10 μM (low dose) or 50 μM (high dose) Mat
(Chengdu Biopurify Phytochemicals Ltd, Sichuan, China) for 12, 24, and 72 h at 37 °C ...
