ArticleJournal of neurophysiology2021
Dopamine D1 and D4 receptors contribute to light adaptation in ON-sustained retinal ganglion cells.
Article in Journal of neurophysiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 13 citations in OpenAlex.
- Optogenetic Isolation of the Amacrine Cell-OFF Bipolar Cell Synapse Shows Selective D1R Control of Glycinergic Transmission.bioRxiv : the preprint server for biology · 2026Article
- Amine-responsive Rhodopsin-like GPCRs in ocular pathology: mechanistic associations, candidate biomarkers, and therapeutic potential.Frontiers in physiology · 2026Review
- Molecular characterization of chicken DA systems reveals that the avian personality gene,Frontiers in neuroanatomy · 2025Article
- Impaired dopamine signaling in early diabetic retina: Insights from D1R and D4R agonist effects on whole retina responses.Experimental eye research · 2024Article
- Dopamine enhances GABAJournal of neurophysiology · 2024Article
- Acute retinal pigment epitheliitis during treatment of hyperprolactinaemia.BMC ophthalmology · 2024Article
- Dopamine enhances GABAbioRxiv : the preprint server for biology · 2023Article
- Retinal Changes in Parkinson's Disease: A Non-invasive Biomarker for Early Diagnosis.Cellular and molecular neurobiology · 2023Review
- Impaired Light Adaptation of ON-Sustained Ganglion Cells in Early Diabetes Is Attributable to Diminished Response to Dopamine D4 Receptor Activation.Investigative ophthalmology & visual science · 2022Article
Corrections and comments
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
Abstract
The adaptation of ganglion cells to increasing light levels is a crucial property of the retina. The retina must respond to light intensities that vary by 10-12 orders of magnitude, but the dynamic range of ganglion cell responses covers only ∼3 orders of magnitude. Dopamine is a crucial neuromodulator for light adaptation and activates receptors in the D1 and D2 families. Dopamine type D1 receptors (D1Rs) are expressed on horizontal cells and some bipolar, amacrine, and ganglion cells. In the D2 family, D2Rs are expressed on dopaminergic amacrine cells and D4Rs are primarily expressed on photoreceptors. However, the roles of activating these receptors to modulate the synaptic properties of the inputs to ganglion cells are not yet clear. Here, we used single-cell retinal patch-clamp recordings from the mouse retina to determine how activating D1Rs and D4Rs changed the light-evoked and spontaneous excitatory inputs to ON-sustained (ON-s) ganglion cells. We found that both D1R and D4R activation decrease the light-evoked excitatory inputs to ON-s ganglion cells, but that only the sum of the peak response decrease due to activating the two receptors was similar to the effect of light adaptation to a rod-saturating background. The largest effects on spontaneous excitatory activity of both D1R and D4R agonists was on the frequency of events, suggesting that both D1Rs and D4Rs are acting upstream of the ganglion cells.
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