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KMID : 0043320120350091645
Archives of Pharmacal Research
2012 Volume.35 No. 9 p.1645 ~ p.1654
A novel 7-O-modified genistein derivative with acetylcholinesterase inhibitory effect, estrogenic activity and neuroprotective effect
Shi Da Hua

Yan Zhi Qiang
Zhang Li Na
Wang Yu Rong
Jiang Chun Ping
Wu Jun Hua
Abstract
To find the multi-target-directed compounds for the treatment of Alzheimer¡¯s disease (AD), we synthesized 7-(4-(diethylamino)butoxy)-5-hydroxy-3-(4-hydroxyphenyl)-4H-chromen-4-one, a novel 7-O-modified genistein derivative (GS-14), and investigated its acetylcholinesterase (AChE) inhibitory effect, estrogenic activity and neuroprotective effect. GS-14 acted as a selective AChE inhibitor in vitro, with an IC50 value of 0.17 ¥ìM and showed no inhibition activity against butyrylcholinesterase (BuChE). The Lineweaver-Burk plot revealed that GS-14 was a non-competitive AChE inhibitor with a Ki value of 0.23 ¥ìM and the molecular docking model indicated that GS-14 interacted with the peripheral anionic site (PAS) of AChE. The MCF-7 proliferation assay demonstrated that GS-14 possessed estrogenic activity and GS-14 exhibited a high specificity for estrogen receptor ¥â (ER¥â) with a dissociation constant (Ki) of 2.86 nM compared with that of 1.01 ¥ìM for estrogen receptor ¥á (ER¥á) in the molecular docking study. GS-14 also possessed a neuroprotective effect and showed the best protective effect against the ¥â-amyloid protein-induced injury on SH-SY5Y cells at a concentration of 1 nM. Considering its AChE-inhibition activity, estrogenic activity and neuroprotective effect, GS-14 may be a potential multi-target agent for the treatment of AD.
KEYWORD
Genistein derivative, Acetylcholinesterase (AChE) inhibitor, SH-SY5Y cell, Alzheimer¡¯s disease (AD), Estrogenic activity, Neuroprotection
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