title: Valproic acid-mediated Hsp70 induction and anti-apoptotic neuroprotection in SH-SY5Y cells.
abstract: Valproic acid (VPA), an anticonvulsant and mood-stabilizing drug, has been reported to exert neuroprotection against a variety of insults. We now show that VPA attenuates rotenone (a potent complex I inhibitor)-induced apoptosis through the induction of heat shock protein 70, which may interact with apoptotic-protease-activating factor 1. Activation of p-Akt, p-Bcl-2, as well as p-Erk1/2 by VPA may be co-contributors to the protection.
authors.affiliation: Parkinson Disease Research Laboratory, Department of Neurology, Baylor College of Medicine, Houston, TX 77030, USA.
authors.forename: Tianhong
authors.initials: T
authors.lastname: Pan
authors.forename: Xinqun
authors.initials: X
authors.lastname: Li
authors.forename: Wenjie
authors.initials: W
authors.lastname: Xie
authors.forename: Joseph
authors.initials: J
authors.lastname: Jankovic
authors.forename: Weidong
authors.initials: W
authors.lastname: Le
mesh_terms: D017209:Apoptosis / Q000187:drug effects*; D053477:Apoptotic Protease-Activating Factor 1; D001559:Benzhydryl Compounds / Q000494:pharmacology; D053148:Caspase 3; D053453:Caspase 9; D020169:Caspases / Q000378:metabolism; D045744:Cell Line, Tumor; D004305:Dose-Response Relationship, Drug; D004347:Drug Interactions; D004789:Enzyme Activation / Q000187:drug effects; D018840:HSP70 Heat-Shock Proteins / Q000378:metabolism*; D006801:Humans; D047908:Intracellular Signaling Peptides and Proteins / Q000378:metabolism; D019950:Mitogen-Activated Protein Kinase 1 / Q000378:metabolism; D048052:Mitogen-Activated Protein Kinase 3 / Q000378:metabolism; D009474:Neurons / Q000187:drug effects* / Q000473:pathology; D018696:Neuroprotective Agents / Q000494:pharmacology*; D000071137:Poly (ADP-Ribose) Polymerase-1; D011065:Poly(ADP-ribose) Polymerases / Q000032:analysis / Q000378:metabolism; D011233:Precipitin Tests; D011506:Proteins / Q000378:metabolism; D051057:Proto-Oncogene Proteins c-akt / Q000378:metabolism; D019253:Proto-Oncogene Proteins c-bcl-2 / Q000378:metabolism; D011760:Pyrrolidinones / Q000494:pharmacology; D012402:Rotenone / Q000494:pharmacology; D013997:Time Factors; D014635:Valproic Acid / Q000494:pharmacology*
chemical_list: C506592:APAF1 protein, human; D053477:Apoptotic Protease-Activating Factor 1; D001559:Benzhydryl Compounds; D018840:HSP70 Heat-Shock Proteins; D047908:Intracellular Signaling Peptides and Proteins; C410027:KNK 437; D018696:Neuroprotective Agents; D011506:Proteins; D019253:Proto-Oncogene Proteins c-bcl-2; D011760:Pyrrolidinones; D012402:Rotenone; D014635:Valproic Acid; C499320:PARP1 protein, human; D000071137:Poly (ADP-Ribose) Polymerase-1; D011065:Poly(ADP-ribose) Polymerases; D051057:Proto-Oncogene Proteins c-akt; D019950:Mitogen-Activated Protein Kinase 1; D048052:Mitogen-Activated Protein Kinase 3; C505407:CASP3 protein, human; C506433:CASP9 protein, human; D053148:Caspase 3; D053453:Caspase 9; D020169:Caspases