ArticleJournal of neurophysiology2014
Strychnine-sensitive glycine receptors on pyramidal neurons in layers II/III of the mouse prefrontal cortex are tonically activated.
Article in Journal of neurophysiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.
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Who cites it
35 citing papers in PubMed, 49 citations in OpenAlex.
- Synaptic vs. Non-Synaptic Glycine Receptors: Physiological Role and Implications in Alzheimer's Disease Pathology.International journal of molecular sciences · 2026Review
- Simultaneous Detection of GABA and Glycine Using MEGA-PRESS With TE Optimization at 3T.Magnetic resonance in medicine · 2026Article
- Ultrafast endocytosis in mouse cortical inhibitory synapses.bioRxiv : the preprint server for biology · 2025Article
- An increased copy number of glycine decarboxylase (GLDC) associated with psychosis reduces extracellular glycine and impairs NMDA receptor function.Molecular psychiatry · 2025Article
- Allosteric modulation and direct activation of glycine receptors by a tricyclic sulfonamide.Scientific reports · 2025Article
- Changes in ethanol effects in knock-in mice expressing ethanol insensitive alpha1 and alpha2 glycine receptor subunits.Life sciences · 2024Article
- Prefrontal cortex glutamatergic adaptations in a mouse model of alcohol use disorder.Addiction neuroscience · 2023Article
- Chronic ethanol induces a pro-inflammatory switch in interleukin-1β regulation of GABAergic signaling in the medial prefrontal cortex of male mice.Brain, behavior, and immunity · 2023Article
- Targeting prefrontal cortex GABAergic microcircuits for the treatment of alcohol use disorder.Frontiers in synaptic neuroscience · 2022Review
- Presence of ethanol-sensitive and ethanol-insensitive glycine receptors in the ventral tegmental area and prefrontal cortex in mice.British journal of pharmacology · 2021Article
- Increased Synaptic Strength and mGluAlcoholism, clinical and experimental research · 2021Article
- Reduced sedation and increased ethanol consumption in knock-in mice expressing an ethanol insensitive alpha 2 subunit of the glycine receptor.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2021Article
- Modulatory Actions of the Glycine Receptor β Subunit on the Positive Allosteric Modulation of Ethanol in α2 Containing Receptors.Frontiers in molecular neuroscience · 2021Article
- Contribution of GlyR α3 Subunits to the Sensitivity and Effect of Ethanol in the Nucleus Accumbens.Frontiers in molecular neuroscience · 2021Article
- Ethanol consumption and sedation are altered in mice lacking the glycine receptor α2 subunit.British journal of pharmacology · 2020Article
- Modulation of glycine receptor single-channel conductance by intracellular phosphorylation.Scientific reports · 2020Article
- Influence of nonsynaptic α1 glycine receptors on ethanol consumption and place preference.Addiction biology · 2020Article
- Article
- The role of tonic glycinergic conductance in cerebellar granule cell signalling and the effect of gain-of-function mutation.The Journal of physiology · 2019Article
- Prelimbic of Medial Prefrontal Cortex GABA Modulation through Testosterone on Spatial Learning and Memory.Iranian journal of pharmaceutical research : IJPR · 2019Article
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
Abstract
Processing of signals within the cerebral cortex requires integration of synaptic inputs and a coordination between excitatory and inhibitory neurotransmission. In addition to the classic form of synaptic inhibition, another important mechanism that can regulate neuronal excitability is tonic inhibition via sustained activation of receptors by ambient levels of inhibitory neurotransmitter, usually GABA. The purpose of this study was to determine whether this occurs in layer II/III pyramidal neurons (PNs) in the prelimbic region of the mouse medial prefrontal cortex (mPFC). We found that these neurons respond to exogenous GABA and to the α4δ-containing GABAA receptor (GABA(A)R)-selective agonist gaboxadol, consistent with the presence of extrasynaptic GABA(A)R populations. Spontaneous and miniature synaptic currents were blocked by the GABA(A)R antagonist gabazine and had fast decay kinetics, consistent with typical synaptic GABA(A)Rs. Very few layer II/III neurons showed a baseline current shift in response to gabazine, but almost all showed a current shift (15-25 pA) in response to picrotoxin. In addition to being a noncompetitive antagonist at GABA(A)Rs, picrotoxin also blocks homomeric glycine receptors (GlyRs). Application of the GlyR antagonist strychnine caused a modest but consistent shift (∼15 pA) in membrane current, without affecting spontaneous synaptic events, consistent with the tonic activation of GlyRs. Further investigation showed that these neurons respond in a concentration-dependent manner to glycine and taurine. Inhibition of glycine transporter 1 (GlyT1) with sarcosine resulted in an inward current and an increase of the strychnine-sensitive current. Our data demonstrate the existence of functional GlyRs in layer II/III of the mPFC and a role for these receptors in tonic inhibition that can have an important influence on mPFC excitability and signal processing.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.