Striatal spreading depolarization: Possible implication in levodopa-induced dyskinetic-like behavior

Paolo Calabresi, Antonio De Iure, Francesco Napolitano, Goichi Beck, Ana Quiroga Varela, Valentina Durante, Miriam Sciaccaluga, Petra Mazzocchetti, Alfredo Megaro, Michela Tantucci, Antonella Cardinale, Daniela Punzo, Andrea Mancini, Cinzia Costa, Veronica Ghiglieri, Alessandro Tozzi, Barbara Picconi, Stella M. Papa, Alessandro Usiello

Risultato della ricerca: Contributo in rivistaArticolo in rivista

3 Citazioni (Scopus)

Abstract

Objective: Spreading depolarization (SD) is a transient self-propagating wave of neuronal and glial depolarization coupled with large membrane ionic changes and a subsequent depression of neuronal activity. Spreading depolarization in the cortex is implicated in migraine, stroke, and epilepsy. Conversely, spreading depolarization in the striatum, a brain structure deeply involved in motor control and in Parkinson's disease (PD) pathophysiology, has been poorly investigated. Methods: We characterized the participation of glutamatergic and dopaminergic transmission in the induction of striatal spreading depolarization by using a novel approach combining optical imaging, measurements of endogenous DA levels, and pharmacological and molecular analyses. Results: We found that striatal spreading depolarization requires the concomitant activation of D1-like DA and N-methyl-d-aspartate receptors, and it is reduced in experimental PD. Chronic l-dopa treatment, inducing dyskinesia in the parkinsonian condition, increases the occurrence and speed of propagation of striatal spreading depolarization, which has a direct impact on one of the signaling pathways downstream from the activation of D1 receptors. Conclusion: Striatal spreading depolarization might contribute to abnormal basal ganglia activity in the dyskinetic condition and represents a possible therapeutic target. © 2019 International Parkinson and Movement Disorder Society.
Lingua originaleEnglish
pagine (da-a)832-844
Numero di pagine13
RivistaMovement Disorders
Volume34
DOI
Stato di pubblicazionePubblicato - 2019

Keywords

  • Animals
  • Antineoplastic Combined Chemotherapy Protocols
  • Antiparkinson Agents
  • Corpus Striatum
  • D1 like receptor
  • Dopaminergic Neurons
  • Dyskinesia, Drug-Induced
  • LIDs
  • Levodopa
  • Neurons
  • Nitrogen Mustard Compounds
  • Parkinson's disease
  • Parkinsonian Disorders
  • Prednisolone
  • Procarbazine
  • Rats
  • Rats, Wistar
  • Spreading depolarization
  • Striatum
  • Synaptic Transmission
  • Vincristine

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