ArticleMolecular pain
Spinal GABAergic neurons are under feed-forward inhibitory control driven by A
Article in Molecular pain. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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6 citing papers in PubMed, 17 citations in OpenAlex.
- GABAA receptor mediated facilitation of proprioceptive afferent transmission to motoneurons is facilitated by TRPM8 channels on C-fibres that are gated by serotonin.bioRxiv : the preprint server for biology · 2026Article
- Biologically-constrained spiking neural network for neuromodulation in locomotor recovery after spinal cord injury.PLoS computational biology · 2026Article
- Pharmacological and Genetic Approaches to Downregulate FIS1 Mitigate Neuropathic Pain.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025Article
- Article
- Mast cell-neuron axis as a core mechanism in chronic pruritus of atopic dermatitis: from mechanistic insights to therapeutic targets.Frontiers in immunology · 2025Review
- Synaptic Targets of Glycinergic Neurons in Laminae I-III of the Spinal Dorsal Horn.International journal of molecular sciences · 2023Article
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6 authors at 1 institution in 1 country.
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Abstract
backgroundSpinal GABAergic neurons act as a critical modulator in sensory transmission like pain or itch. The monosynaptic or polysynaptic primary afferent inputs onto GABAergic neurons, along with other interneurons or projection neurons make up the direct and feed-forward inhibitory neural circuits. Previous research indicates that spinal GABAergic neurons mainly receive excitatory inputs from Aδ and C fibers. However, whether they are controlled by other inhibitory sending signals is not well understood.
methodsWe applied a transgenic mouse line in which neurons co-expressed the GABA-synthesizing enzyme Gad65 and the enhanced red fluorescence (td-Tomato) to characterize the features of morphology and electrophysiology of GABAergic neurons. Patch-clamp whole cell recordings were used to record the evoked postsynaptic potentials of fluorescent neurons in spinal slices in response to dorsal root stimulation.
resultsWe demonstrated that GABAergic neurons not only received excitatory drive from peripheral Aβ, Aδ and C fibers, but also received inhibitory inputs driven by Aδ and C fibers. The evoked inhibitory postsynaptic potentials (eIPSPs) mediated by C fibers were mainly Glycinergic (66.7%) as well as GABAergic mixed with Glycinergic (33.3%), whereas the inhibition mediated by Aδ fibers was predominately both GABA and Glycine-dominant (57.1%), and the rest of which was purely Glycine-dominant (42.9%).
conclusionThese results indicated that spinal GABAergic inhibitory neurons are under feedforward inhibitory control driven by primary C and Aδ fibers, suggesting that this feed-forward inhibitory pathway may play an important role in balancing the excitability of GABAergic neurons in spinal dorsal horn.
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