title: Protective potential of trans-resveratrol against 4-hydroxynonenal induced damage in PC12 cells.
abstract: The role of 4-hydroxynonenal (4-HNE), a byproduct of membrane lipid peroxidation has been suggested in neurodegeneration. However, the underlying mechanisms are poorly understood. The investigations were carried out to study the preventive potential of trans-resveratrol against 4-HNE induced damage in PC12 cells. Trans-resveratrol, a natural compound obtained from grape skin and found in red wine, is reported to have wide pharmacological window. Cells pretreated with trans-resveratrol (5, 10 and 25 microM) for 24 h were exposed to 4-HNE (25 microM) for 2 h. Pre-treatment of trans-resveratrol was found to be significantly effective in countering the cytotoxic responses of 4-HNE. Significant reduction in reactive oxygen species generation, restoration of intracellular glutathione, and lipid peroxidation levels suggest the improved antioxidant defense system in the cells pretreated with trans-resveratrol. Further, 4-HNE induced alterations in the protein expression of mitochondria-mediated apoptosis markers (Bax, Bcl-2 and Caspase-3) were significantly restored by pre-treatment of trans-resveratrol suggesting the protective potential of trans-resveratrol in PC12 cells against 4-HNE induced oxidative damage. Together these data show the prophylactic potential of trans-resveratrol in oxidative stress mediated apoptotic neurodegeneration.
authors.affiliation: DNA Research Chair, Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia.
authors.forename: M A
authors.initials: MA
authors.lastname: Siddiqui
authors.forename: M P
authors.initials: MP
authors.lastname: Kashyap
authors.forename: V
authors.initials: V
authors.lastname: Kumar
authors.forename: A A
authors.initials: AA
authors.lastname: Al-Khedhairy
authors.forename: J
authors.initials: J
authors.lastname: Musarrat
authors.forename: A B
authors.initials: AB
authors.lastname: Pant
mesh_terms: D000447:Aldehydes / Q000633:toxicity*; D000818:Animals; D000975:Antioxidants / Q000494:pharmacology*; D017209:Apoptosis / Q000187:drug effects; D051017:Apoptosis Regulatory Proteins / Q000378:metabolism; D002470:Cell Survival / Q000187:drug effects; D015853:Cysteine Proteinase Inhibitors / Q000633:toxicity*; D019610:Cytoprotection; D004336:Drug Antagonism; D005978:Glutathione / Q000378:metabolism; D015227:Lipid Peroxidation / Q000187:drug effects; D009474:Neurons / Q000187:drug effects* / Q000378:metabolism / Q000473:pathology; D018384:Oxidative Stress / Q000187:drug effects; D016716:PC12 Cells; D051381:Rats; D017382:Reactive Oxygen Species / Q000378:metabolism; D000077185:Resveratrol; D013267:Stilbenes / Q000494:pharmacology*
chemical_list: D000447:Aldehydes; D000975:Antioxidants; D051017:Apoptosis Regulatory Proteins; D015853:Cysteine Proteinase Inhibitors; D017382:Reactive Oxygen Species; D013267:Stilbenes; D005978:Glutathione; C027576:4-hydroxy-2-nonenal; D000077185:Resveratrol