title: The anti-inflammatory and cholinesterase inhibitor bifunctional compound IBU-PO protects from beta-amyloid neurotoxicity by acting on Wnt signaling components.
abstract: Changes in signal transduction are implicated in neuronal responses to the Alzheimer's amyloid-beta-peptide (Abeta), which include neurotransmitter systems and pathways involved in the maintenance of the nervous system. We report here that a new bifunctional compound IBU-PO, which combines a non-steroidal anti-inflammatory drug (NSAID) (Ibuprofen) and a cholinesterase (ChE) inhibitor (Octyl-Pyridostigmine), is neuroprotective against Abeta-neurotoxicity, and its activity is associated to Wnt signaling components in rat hippocampal and mouse cortical neurons. IBU-PO (0.01-1 microM) inhibits glycogen-synthase-kinase-3beta (GSK-3beta) and stabilizes cytoplasmic beta-catenin reverting the silencing of the Wnt pathway caused by Abeta-toxicity and GSK-3beta overexpression. In addition, IBU-PO enhances, dose-dependently, the non-amyloidogenic amyloid precursor protein (APP) cleavage by increasing secreted APP and decreasing endogenous Abeta1-40 in rat hippocampal neurons.
authors.affiliation: Centro FONDAP de Regulación Celular y Patología Joaquin V. Luco, MIFAB, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile.
authors.forename: Ginny G
authors.initials: GG
authors.lastname: Farías
authors.forename: Juan A
authors.initials: JA
authors.lastname: Godoy
authors.forename: Mary C
authors.initials: MC
authors.lastname: Vázquez
authors.forename: Rellie
authors.initials: R
authors.lastname: Adani
authors.forename: Haim
authors.initials: H
authors.lastname: Meshulam
authors.forename: Jesús
authors.initials: J
authors.lastname: Avila
authors.forename: Gabi
authors.initials: G
authors.lastname: Amitai
authors.forename: Nibaldo C
authors.initials: NC
authors.lastname: Inestrosa
mesh_terms: D000544:Alzheimer Disease / Q000188:drug therapy* / Q000378:metabolism / Q000503:physiopathology; D016229:Amyloid beta-Peptides / Q000037:antagonists & inhibitors* / Q000378:metabolism / Q000633:toxicity; D016564:Amyloid beta-Protein Precursor / Q000187:drug effects / Q000378:metabolism; D000818:Animals; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000494:pharmacology* / Q000627:therapeutic use; D001921:Brain / Q000187:drug effects / Q000378:metabolism / Q000503:physiopathology; D002478:Cells, Cultured; D002800:Cholinesterase Inhibitors / Q000494:pharmacology* / Q000627:therapeutic use; D003598:Cytoskeletal Proteins / Q000187:drug effects / Q000378:metabolism; D004195:Disease Models, Animal; D015536:Down-Regulation / Q000187:drug effects / Q000502:physiology; D004339:Drug Compounding; D038362:Glycogen Synthase Kinase 3 / Q000037:antagonists & inhibitors / Q000235:genetics / Q000378:metabolism; D000071679:Glycogen Synthase Kinase 3 beta; D007052:Ibuprofen / Q000494:pharmacology / Q000627:therapeutic use; D036341:Intercellular Signaling Peptides and Proteins / Q000378:metabolism*; D051379:Mice; D008822:Mice, Transgenic; D018696:Neuroprotective Agents / Q000494:pharmacology*; D010446:Peptide Fragments / Q000037:antagonists & inhibitors / Q000378:metabolism; D011726:Pyridinium Compounds / Q000494:pharmacology* / Q000627:therapeutic use; D011729:Pyridostigmine Bromide / Q000494:pharmacology / Q000627:therapeutic use; D051381:Rats; D017207:Rats, Sprague-Dawley; D015398:Signal Transduction / Q000502:physiology; D015534:Trans-Activators / Q000187:drug effects / Q000378:metabolism; D051153:Wnt Proteins; D051176:beta Catenin
chemical_list: C500313:1-(8-(2-(4-isobutylphenyl)propionyl)octyl)-3-N,N-dimethylcarbamoyl pyridinium bromide; D016229:Amyloid beta-Peptides; D016564:Amyloid beta-Protein Precursor; D000894:Anti-Inflammatory Agents, Non-Steroidal; C495267:CTNNB1 protein, mouse; D002800:Cholinesterase Inhibitors; C495268:Ctnnb1 protein, rat; D003598:Cytoskeletal Proteins; D036341:Intercellular Signaling Peptides and Proteins; D018696:Neuroprotective Agents; D010446:Peptide Fragments; D011726:Pyridinium Compounds; D015534:Trans-Activators; D051153:Wnt Proteins; C078592:amyloid beta-protein (1-40); D051176:beta Catenin; D000071679:Glycogen Synthase Kinase 3 beta; C000605507:Gsk3b protein, mouse; C000605508:Gsk3b protein, rat; D038362:Glycogen Synthase Kinase 3; D011729:Pyridostigmine Bromide; D007052:Ibuprofen