Cited by 130Parkinson's Disease Mechanisms and TreatmentsNeurological disorders and treatmentsNeurotransmitter Receptor Influence on Behavior

Dopamine Deficiency Reduces Striatal Cholinergic Interneuron Function in Models of Parkinson’s Disease

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McKinley, Jonathan W., Shi, Ziqing, Kawikova, Ivana, Hur, Matthew, Bamford, Ian J., Sudarsana Devi, Suma Priya, Vahedipour, Annie, Darvas, Martin +1 more·2019·Neuron

Abstract

Motor and cognitive functions depend on the coordinated interactions between dopamine (DA) and acetylcholine (ACh) at striatal synapses. Increased ACh availability was assumed to accompany DA deficiency based on the outcome of pharmacological treatments and measurements in animals that were critically depleted of DA. Using Slc6a3 DTR/+ diphtheria-toxin-sensitive mice, we demonstrate that a progressive and L-dopa-responsive DA deficiency reduces ACh availability and the transcription of hyperpolarization-activated cation (HCN) channels that encode the spike timing of ACh-releasing tonically active striatal interneurons (ChIs). Although the production and release of ACh and DA are reduced, the preponderance of ACh over DA contributes to the motor deficit. The increase in striatal ACh relative to DA is heightened via D1-type DA receptors that activate ChIs in response to DA release from residual axons. These results suggest that stabilizing the expression of HCN channels may improve ACh-DA reciprocity and motor function in Parkinson's disease (PD). VIDEO ABSTRACT.

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Authors
McKinley, J. W., Shi, Z., Kawikova, I., Hur, M., Bamford, I. J., Sudarsana Devi, S. P., Vahedipour, A., Darvas, M., & Bamford, N. S.
Affiliations
  • Yale University (US)
  • University of Washington (US)
Corresponding author
Bamford, Nigel S.
Venue
Neuron
Publisher
Elsevier BV
Published
2019-09
Volume
103
Issue
6
Pages
1056-1072.e6
ISSN
0896-6273 (ISSN-L)
OpenAlex
W2961568329
Cited by
130
References
76
Citations by year
2026: 9 · 2025: 14 · 2024: 20 · 2023: 19 · 2022: 27 · 2021: 21 · 2020: 16 · 2019: 4
FWCI
11.50
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institute of Neurological Disorders and Stroke
Topics
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
  • Health Sciences › Medicine › Neurology › Neurological disorders and treatments
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
Keywords
dopamine deficiency, Parkinson's disease, striatal cholinergic interneurons, HCN channels, dopamine D1 receptor, motor impairment, L-DOPA, cholinergic depletion, diphtheria toxin, transcriptional regulation
MeSH terms
Acetylcholine, Amphetamine, Animals, Disease Models, Animal, Dopamine, Interneurons, Parkinson Disease, Transcription, Genetic, Dopamine Agents, Neostriatum, Receptors, Dopamine D1, Receptors, Dopamine D2, Cyclic AMP-Dependent Protein Kinases, Patch-Clamp Techniques, Dopamine Plasma Membrane Transport Proteins, Mice, Cholinergic Neurons, Hyperpolarization-Activated Cyclic Nucleotide-Gated Channels

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