ArticleChannels (Austin, Tex.)2021
Differential expression of GluN2 NMDA receptor subunits in the dorsal horn of male and female rats.
Article in Channels (Austin, Tex.), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed, 22 citations in OpenAlex.
- Mechanisms and Cell Type-Dependence of Non-Hebbian Long-Term Potentiation at Primary Afferent Synapses in the Mouse Spinal Superficial Dorsal Horn.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2026Article
- Processing and sectioning of organ donor spinal cord tissue for electrophysiology on acute human spinal cord slices.Brain communications · 2026Article
- RIN1 regulates developmental and pain-related plasticity in spinal synapses via NMDA receptor subunit trafficking.PLoS biology · 2025Article
- Expression and localization of NMDA receptor GluN2 subunits in dorsal horn pain circuits across sex, species, and late postnatal development.bioRxiv : the preprint server for biology · 2025Article
- Glycine Transporter 1 Inhibitors Minimize the Analgesic Tolerance to Morphine.International journal of molecular sciences · 2024Article
- Understanding the role of the NMDA receptor subunit, GluN2D, in mediating NMDA receptor antagonist-induced behavioral disruptions in male and female mice.Journal of neuroscience research · 2024Article
- Characterization of Fragile X Mental Retardation Protein expression in human nociceptors and their axonal projections to the spinal dorsal horn.The Journal of comparative neurology · 2023Article
- Novel GluN2B-Selective NMDA Receptor Negative Allosteric Modulator Possesses Intrinsic Analgesic Properties and Enhances Analgesia of Morphine in a Rodent Tail Flick Pain Model.ACS chemical neuroscience · 2023Article
- Sexual dimorphism in a neuronal mechanism of spinal hyperexcitability across rodent and human models of pathological pain.Brain : a journal of neurology · 2022Article
- Advances and Barriers in Understanding PresynapticFrontiers in molecular neuroscience · 2022Review
- Modulation of GABAergic Synaptic Transmission by NMDA Receptors in the Dorsal Horn of the Spinal Cord.Frontiers in molecular neuroscience · 2022Article
- The neurobiology of pain and facial movements in rodents: Clinical applications and current research.Frontiers in veterinary science · 2022Review
- Multiple roles of GluN2D-containing NMDA receptors in short-term potentiation and long-term potentiation in mouse hippocampal slices.Neuropharmacology · 2021Article
- A review of dorsal root ganglia and primary sensory neuron plasticity mediating inflammatory and chronic neuropathic pain.Neurobiology of pain (Cambridge, Mass.)Review
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Authors and funding
7 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
N-methyl-D-aspartate receptors (NMDARs) are excitatory ionotropic glutamate receptors expressed throughout the CNS, including in the spinal dorsal horn. The GluN2 subtypes of NMDAR subunit, which include GluN2A, GluN2B, and GluN2D in the dorsal horn, confer NMDARs with structural and functional variability, enabling heterogeneity in synaptic transmission and plasticity. Despite essential roles for NMDARs in physiological and pathological pain processing, the distribution and function of these specific GluN2 isoforms across dorsal horn laminae remain poorly understood. Surprisingly, there is a complete lack of knowledge of GluN2 expression in female rodents. We, therefore, investigated the relative expression of specific GluN2 variants in the dorsal horn of lumbar (L4/L5) spinal cord from both male and female rats. In order to detect synaptic GluN2 isoforms, we used pepsin antigen-retrieval to unmask these highly cross-linked protein complexes. We found that GluN2B and GluN2D are preferentially localized to the pain-processing superficial regions of the dorsal horn in males, while only GluN2B is predominantly localized to the superficial dorsal horn of female rats. The GluN2A subunit is diffusely localized to neuropil throughout the dorsal horn of both males and females, while GluN2B and GluN2D immunolabelling are found both in the neuropil and on the soma of dorsal horn neurons. Finally, we identified an unexpected enhanced expression of GluN2B in the medial division of the superficial dorsal horn, but in males only. These sex-specific localization patterns of GluN2-NMDAR subunits across dorsal horn laminae have significant implications for the understanding of divergent spinal mechanisms of pain processing.
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