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Neurochemical Research

, Volume 33, Issue 12, pp 2401–2406 | Cite as

The Wnt Antagonist, Dickkopf-1, as a Target for the Treatment of Neurodegenerative Disorders

  • Filippo CaraciEmail author
  • Carla Busceti
  • Francesca Biagioni
  • Eleonora Aronica
  • Federica Mastroiacovo
  • Irene Cappuccio
  • Giuseppe Battaglia
  • Valeria Bruno
  • Andrea Caricasole
  • Agata Copani
  • Ferdinando Nicoletti
Original Paper

Abstract

The canonical Wnt pathway contributes to the regulation of neuronal survival and homeostasis in the CNS. Recent evidence suggests that an increased expression of Dickkopf-1 (Dkk-1), a secreted protein that negatively modulates the canonical Wnt pathway, is causally related to processes of neurodegeneration in a number of CNS disorders, including Alzheimer’s disease (AD), brain ischemia and temporal lobe epilepsy (TLE). Dkk-1 induction precedes neuronal death in cellular and animal models of excitotoxicity, β-amyloid toxicity, transient global ischemia, and kainate-induced epilepsy. In addition, Dkk-1, which is barely visible in the healthy brain, is strongly induced in brain tissue from AD patients or from patients with TLE associated with hippocampal sclerosis. These data raise the attractive possibility that Dkk-1 antagonists or neutralizing antibodies behave as neuroprotective agents by rescuing the activity of the canonical Wnt pathway.

Keywords

Canonical Wnt pathway Dkk-1 Neuronal death β-Catenin Neurodegeneration Lithium 

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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • Filippo Caraci
    • 1
    Email author
  • Carla Busceti
    • 2
  • Francesca Biagioni
    • 2
  • Eleonora Aronica
    • 3
  • Federica Mastroiacovo
    • 2
  • Irene Cappuccio
    • 4
  • Giuseppe Battaglia
    • 2
  • Valeria Bruno
    • 2
    • 4
  • Andrea Caricasole
    • 5
  • Agata Copani
    • 1
    • 6
  • Ferdinando Nicoletti
    • 2
    • 4
  1. 1.Department of Pharmaceutical SciencesUniversity of CataniaCataniaItaly
  2. 2.I.N.M. NeuromedPozzilliItaly
  3. 3.Department of Neuropathology, Academic Medical CenterUniversity of AmsterdamAmsterdamThe Netherlands
  4. 4.Department of Human Physiology and PharmacologyUniversity of Rome La SapienzaRomeItaly
  5. 5.Siena BiotechSienaItaly
  6. 6.I.B.B., CNR-CataniaCataniaItaly

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