Cited by 69Neuroscience and Neuropharmacology ResearchNicotinic Acetylcholine Receptors StudyAmino Acid Enzymes and Metabolism

Localisation of glycine receptors in the human forebrain, brainstem, and cervical spinal cord: an immunohistochemical review

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Baer, Kristin·2009·Frontiers in Molecular Neuroscience

Abstract

Inhibitory neurotransmitter receptors for glycine (GlyR) are heteropentameric chloride ion channels that are comprised of four functional subunits, alpha1-3 and beta and that facilitate fast-response, inhibitory neurotransmission in the mammalian brain and spinal cord. We have investigated the distribution of GlyRs in the human forebrain, brainstem, and cervical spinal cord using immunohistochemistry at light and confocal laser scanning microscopy levels. This review will summarize the present knowledge on the GlyR distribution in the human brain using our established immunohistochemical techniques. The results of our immunohistochemical labeling studies demonstrated GlyR immunoreactivity (IR) throughout the human basal ganglia, substantia nigra, various pontine regions, rostral medulla oblongata and the cervical spinal cord present an intense and abundant punctate IR along the membranes of the neuronal soma and dendrites. This work is part of a systematic study of inhibitory neurotransmitter receptor distribution in the human CNS, and provides a basis for additional detailed physiological and pharmacological studies on the inter-relationship of GlyR, GABA(A)R and gephyrin in the human brain. This basic mapping exercise, we believe, will provide important baselines for the testing of future pharmacotherapies and drug regimes that modulate neuroinhibitory systems. These findings provide new information for understanding the complexity of glycinergic functions in the human brain, which will translate into the contribution of inhibitory mechanisms in paroxysmal disorders and neurodegenerative diseases such as Epilepsy, Huntington's and Parkinson's Disease and Motor Neuron Disease.

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Crossref · 10.3389/neuro.02.025.2009

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Authors
Baer, K.
Affiliations
Swansea University (GB)
Corresponding author
Baer, Kristin
Venue
Frontiers in Molecular Neuroscience
Published
2009
Volume
2
Pages
25-25
ISSN
1662-5099 (ISSN-L)
OpenAlex
W2086984446
Cited by
69
References
90
Citations by year
2026: 4 · 2025: 2 · 2024: 6 · 2023: 5 · 2022: 4 · 2021: 3 · 2020: 3 · 2019: 3 · 2018: 4 · 2017: 3 · 2016: 4 · 2015: 4 · 2014: 5 · 2013: 6 · 2012: 8
FWCI
1.80
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Frontiers in Molecular Neuroscience (publishedVersion, cc-by)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Royal Society
  • Neurological Foundation of New Zealand
  • Health Research Council of New Zealand
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Nicotinic Acetylcholine Receptors Study
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Amino Acid Enzymes and Metabolism
Keywords
glycine receptor, human brain, forebrain, brainstem, cervical spinal cord, basal ganglia, substantia nigra, Pontine region, medulla oblongata, inhibitory neurotransmission, chloride channels, GABAA receptor, gephyrin, glycinergic inhibition, epilepsy, Huntington's disease, Parkinson's disease, motor neuron disease

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