Cited by 220Nicotinic Acetylcholine Receptors StudyNeuroscience and Neuropharmacology ResearchReceptor Mechanisms and Signaling

Immunocytochemical localization of a neuronal nicotinic receptor: the beta 2-subunit

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Hill, JA, Zoli, M, Bourgeois, JP, Changeux, JP·1993·The Journal of Neuroscience

Abstract

We have characterized in adult rat the tissue-specific expression of the nicotinic ACh receptor (AChR) beta 2-subunit using antisera raised against fusion protein constructs. Immunohistochemical localization revealed immunoreactivity distributed throughout the neuraxis. Overall, beta 2-like immunoreactivity (beta 2-LI) correlated well with in situ localization of beta 2 transcript in neuronal cell bodies. Particularly strong labeling was detected in the thalamus, and scattered other regions, whereas relatively weak staining was observed in the hypothalamus and amygdala. At the cellular level, beta 2-LI appeared to be exclusively neuronal and concentrated predominantly in perikarya, although strongly positive dendrites (cerebral cortical pyramidal neurons, cerebellar Purkinje cells) and axon terminals (e.g., striatum) were detected. At the ultrastructural level, beta 2-LI was membrane associated, with strong staining observed in endoplasmic reticulum and cytoplasmic transport vesicles. beta 2-LI was rarely detected at synapses. The widespread distribution of beta 2 suggests it may serve as a common subunit in different AChR combinations in various brain regions. Regulation of the expression of beta 2-subunit appears to be relatively unrestrained, with an apparent excess of protein synthesized in the cytoplasm relative to that which ultimately arrives at functional targets in the plasma membrane.

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Crossref · 10.1523/jneurosci.13-04-01551.1993

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  1. Butcher LL, Woolf NJ (1984) Histochemical localization of acetyl- cholinesterase in the central nervous system: clues to the localization of cholinergic neurons. In: Handbook of chemical neuroanatomy, Vol 3, Classical transmitters and transmitter receptors in the CNS, Pt II, pp l-50. Amsterdam: Elsevier.
  2. - Young WS (1989) In situ hvbridization histochemistrv. In: Handbook of chemical nemoanatomy, Vol8, Analysis of neuronal microcircuits and synaptic interactions, pp 48 l-5 12. Amsterdam: Elsevier.

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Authors
Hill, J., Zoli, M., Bourgeois, J., & Changeux, J.
Affiliations
Centre National de la Recherche Scientifique (FR)
ORCID
Zoli, M
Venue
The Journal of Neuroscience
Published
1993-04-01
Volume
13
Issue
4
Pages
1551-1568
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W1926699758
Cited by
220
References
30
Citations by year
2025: 3 · 2024: 3 · 2022: 1 · 2021: 3 · 2020: 3 · 2019: 3 · 2018: 5 · 2017: 2 · 2016: 2 · 2015: 5 · 2014: 7 · 2013: 8 · 2012: 7
FWCI
4.25
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • European Molecular Biology Organization
  • Centre National de la Recherche Scientifique
  • National Institutes of Health
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Nicotinic Acetylcholine Receptors Study
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Receptor Mechanisms and Signaling
Keywords
nicotinic acetylcholine receptors, beta2 subunit, subunit expression, thalamus, hypothalamus, amygdala, neuronal localization, dendrites, axon terminals, Purkinje cells, pyramidal neurons, striatum, endoplasmic reticulum, transport vesicles, rat brain
MeSH terms
Amino Acid Sequence, Animals, Base Sequence, Brain, Immunohistochemistry, Molecular Sequence Data, Neurons, Receptors, Nicotinic, Recombinant Fusion Proteins, Tissue Distribution, Molecular Probes, Rats, Sprague-Dawley, In Situ Hybridization, Rats

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