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抑制剂描述:

产品名称:(-)-Huperzine A (HupA)

产品别名:见爱必信官网

英文别名:(-)-Huperzine A (HupA)

靶点:AChE

CAS:102518-79-6

纯度:>98%

外观:见爱必信官网

保存方法:Store at -20℃ for one year(Powder);Store at 2-4℃ for two weeks;Store at -20℃ for six months after dissolution.

描述:

(-)-Huperzine A (HupA)是一种有效的,高度特异性的,可逆acetylcholinesterase (AChE)(乙酰胆碱酯酶)抑制剂,Ki为7 nM,作用于G4 AChE比作用于G1 AChE选择性高200倍。

溶解性:DMSO : 0.66 mg/mL (2.72 mM)

体外研究:

(-)-Huperzine A is a novel alkaloid isolated from the Chinese herb Huperzia serrata. (-)-Huperzine A preferentially inhibits tetrameric AChE (G4 form). (-)-Huperzine A is more potent than tacrine, physostigmine, galanthamine, and rivastigmine with respect to inhibition of AChE activity, whereas HupA is the least potent BuChE inhibitor among the inhibitors. (-)-Huperzine A possesses the ability to protect cells against hydrogen peroxide, β-amyloid protein, glutamate, ischemia and staurosporine-induced cytotoxicity and apoptosis. These protective effects are related to its ability to attenuate oxidative stress, regulate the expression of apoptotic proteins Bcl-2, Bax, P53, and caspase-3, protect mitochondria, upregulate nerve growth factor and its receptors, and interfere with amyloid precursor protein metabolism.

体内研究:(-)-Huperzine A can ameliorate the learning and memory deficiency in animal models and AD patients. Its potentially beneficial actions include modification of β-amyloid peptide processing, reduction of oxidative stress, neuronal protection against apoptosis, and regulation of the expression and secretion of nerve growth factor (NGF) and NGF signaling. (-)-Huperzine A significantly inhibits AChE activity in the cortex, hippocampus, striatum, medial septum, medulla oblongata, cerebellum, and hypothalamus of rats that are killed 30 min following the administration of (-)-Huperzine A at several dose levels compared with the saline control.

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