title: Protective effects of huperzine A on beta-amyloid(25-35) induced oxidative injury in rat pheochromocytoma cells.
abstract: The effects of huperzine A (HupA), a novel acetylcholinesterase inhibitor, on Abeta(25-35)-induced cell lesion, level of lipid peroxidation, antioxidant enzyme activities were investigated in the rat pheochromocytoma line PC12. Following a 48 h exposure of the cells to Abeta(25-35), a significant reduction in cell survival and activities of glutathione peroxidase (GSH-Px) and catalase (CAT), as well as increased production of malondialdehyde (MDA) and superoxide dismutase (SOD) were observed. Preincubation of the cells with HupA prior to Abeta(25-35) exposure elevated the cell survival and GSH-Px and CAT activities, and decreased the level of MDA and SOD activity. The results indicate that HupA has protective effects against Abeta-induced cell toxicity, which might be beneficial for the treatment of Alzheimer's disease.
authors.affiliation: State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 294 Tai-yuan Road, 200031, Shanghai, China.
authors.forename: X Q
authors.initials: XQ
authors.lastname: Xiao
authors.forename: R
authors.initials: R
authors.lastname: Wang
authors.forename: Y F
authors.initials: YF
authors.lastname: Han
authors.forename: X C
authors.initials: XC
authors.lastname: Tang
mesh_terms: D000470:Alkaloids; D016229:Amyloid beta-Peptides / Q000494:pharmacology*; D000818:Animals; D002374:Catalase / Q000037:antagonists & inhibitors / Q000378:metabolism; D002470:Cell Survival / Q000187:drug effects; D002800:Cholinesterase Inhibitors / Q000494:pharmacology*; D005979:Glutathione Peroxidase / Q000037:antagonists & inhibitors / Q000378:metabolism; D008315:Malondialdehyde / Q000378:metabolism; D018696:Neuroprotective Agents / Q000494:pharmacology*; D018384:Oxidative Stress / Q000502:physiology*; D016716:PC12 Cells / Q000187:drug effects* / Q000201:enzymology / Q000473:pathology* / Q000502:physiology; D010446:Peptide Fragments / Q000494:pharmacology*; D051381:Rats; D012717:Sesquiterpenes / Q000494:pharmacology*; D013482:Superoxide Dismutase / Q000378:metabolism
chemical_list: D000470:Alkaloids; D016229:Amyloid beta-Peptides; D002800:Cholinesterase Inhibitors; D018696:Neuroprotective Agents; D010446:Peptide Fragments; D012717:Sesquiterpenes; C074636:amyloid beta-protein (25-35); C050426:huperzine A; D008315:Malondialdehyde; D002374:Catalase; D005979:Glutathione Peroxidase; D013482:Superoxide Dismutase