title: Rosmarinic acid inhibits 6-OHDA-induced neurotoxicity by anti-oxidation in MES23.5 cells.
abstract: Rosmarinic acid (RA) is a naturally occurring polyphenolic compound. It is found in several herbs in the Lamiaceae family, such as Perilla frutescens. RA has been reported to exert anti-oxidative effects on rat erythrocyte, liver, and kidney cells. However, little is known about the effects of RA on dopaminergic cells. In the present study, we investigated whether RA could protect MES23.5 dopaminergic cells from 6-hydroxydopamine (6-OHDA)-induced neurotoxicity. The results showed that RA pretreatment significantly prevented 6-OHDA-induced cell viability reduction. Further experiments demonstrated that 6-OHDA induced intracellular reactive oxygen species generation and decreased the mitochondria membrane potential (DeltaPsim). These effects could be partially reversed by RA pretreatment. However, RA had no direct chemical reaction with 6-OHDA extracellularly in a cell-free system. Taken together, these results suggest that RA could exert its protective effects against 6-OHDA-induced neurotoxicity through its anti-oxidation properties. Thus, we propose that RA should be viewed as a potential chemotherapeutic in Parkinson's disease patients.
authors.affiliation: Department of Physiology, Medical College of Qingdao University, Room 405, Boya Building, No. 308 Ningxia Road, Qingdao 266071, China.
authors.forename: Pei
authors.initials: P
authors.lastname: Ren
authors.forename: Hong
authors.initials: H
authors.lastname: Jiang
authors.forename: Ronggui
authors.initials: R
authors.lastname: Li
authors.forename: Jun
authors.initials: J
authors.lastname: Wang
authors.forename: Ning
authors.initials: N
authors.lastname: Song
authors.forename: Hua-Min
authors.initials: HM
authors.lastname: Xu
authors.forename: Jun-Xia
authors.initials: JX
authors.lastname: Xie
mesh_terms: D018663:Adrenergic Agents / Q000633:toxicity*; D000818:Animals; D000975:Antioxidants / Q000378:metabolism*; D002460:Cell Line; D002934:Cinnamates / Q000378:metabolism*; D053630:Depsides / Q000378:metabolism*; D006801:Humans; D019686:Lamiaceae / Q000737:chemistry; D051379:Mice; D020258:Neurotoxicity Syndromes / Q000378:metabolism*; D016627:Oxidopamine / Q000633:toxicity*; D051381:Rats; D017382:Reactive Oxygen Species / Q000378:metabolism; D000097123:Rosmarinic Acid
chemical_list: D018663:Adrenergic Agents; D000975:Antioxidants; D002934:Cinnamates; D053630:Depsides; D016627:Oxidopamine; D017382:Reactive Oxygen Species; D000097123:Rosmarinic Acid