期刊
ACS CHEMICAL NEUROSCIENCE
卷 12, 期 1, 页码 99-108出版社
AMER CHEMICAL SOC
DOI: 10.1021/acschemneuro.0c00606
关键词
Alzheimer's disease; amyloid-beta aggregates; benzofuran derivatives; hippocampus; synapse; 5XFAD mouse models
资金
- Korea Health Industry Development Institute (KHIDI) [HI18C0836]
- National Research Foundation of Korea [NRF-2018R1A6A1A03023718, NRF-2018R1D1A1B07048857, NRF-2018M3C7A1021858, NRF-2020R1A2C2005961]
- POSCO TJ Foundation (POSCO Science Fellowship)
- National Research Foundation of Korea [2018M3C7A1021858] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
The study showed that YB-9 administration in a mouse model reduced Aβ oligomers and plaques in the hippocampus, leading to decreased astrogliosis and improved synaptic dysfunction.
Amyloid-beta (A beta) aggregated forms are highly associated with the onset of Alzheimer's disease (AD). A beta abnormally accumulates in the brain and induces neuronal damages and symptoms of AD such as cognitive impairment and memory loss. Since an antibody drug, aducanumab, reduces A beta aggregates and delays clinical decline, clearance of accumulated A beta in the brain is accounted as a therapeutic approach to treat AD. In this study, we synthesized 17 benzofuran derivatives that may disaggregate A beta oligomers and plaques into inert monomers. By a series of A beta aggregation inhibition and aggregates' disaggregation assays utilizing thioflavin T assays and gel electrophoresis, YB-9, 2-((5-methoxy-3-(4-methoxyphenyl)benzofuran-6-yl)oxy)acetic acid, was selected as the final A beta-disaggregator candidate. When it was orally administered to the 8-month-old male transgenic mouse model with five familial AD mutations (5XFAD) via drinking water daily for two months, A beta oligomers and plaques in hippocampus were reduced. Consequently, decreased astrogliosis and rescued synaptic dysfunction were observed in the hippocampus of YB-9-treated 5XFAD mice compared with the untreated transgenic control group.
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