Cited by 44Nicotinic Acetylcholine Receptors StudySmoking Behavior and CessationNeuroscience and Neuropharmacology Research

Increases in α4* but not α3*/α6* nicotinic receptor sites and function in the primate striatum following chronic oral nicotine treatment

McCallum, Sarah E., Parameswaran, Neeraja, Bordia, Tanuja, Fan, Hong, Tyndale, Rachel F., Langston, J. William, McIntosh, J. Michael, Quik, Maryka·2006·Journal of Neurochemistry

Abstract

Knowledge of the effects of chronic nicotine is critical considering its widespread use in tobacco products and smoking cessation therapies. Although nicotine is well known to up-regulate alpha4* nAChR sites and function in the cortex, its actions in the striatum are uncertain because of the presence of multiple subtypes with potentially opposing effects. We therefore investigated the effect of long-term nicotine treatment on nAChR sites and function in the primate striatum, which offers the advantage of similar proportions of alpha3*/alpha6* and alpha4* nAChRs. Nicotine was given in drinking water, which resembles smoking in its intermittent but chronic delivery. Plasma nicotine and cotinine levels were similar to smokers. Chronic nicotine treatment (> 6 months) enhanced alpha4* nAChR-evoked [(3)H]dopamine release in striatal subregions, with an overall pattern of increase throughout the striatum when normalized to uptake. This increase correlated with elevated striatal alpha4* nAChRs. Under the same conditions, striatal alpha3*/alpha6* nAChR sites and function were decreased or unchanged. These divergent actions of chronic nicotine treatment on alpha4* versus alpha6* nAChRs, as well as effects on dopamine uptake, allow for a complex control of striatal activity to maintain dopaminergic function. Such knowledge is important for understanding nicotine dependence and the consequences of nicotine administration for the treatment of neurological disorders.

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Crossref · 10.1111/j.1471-4159.2005.03646.x

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  • Different β2*-subunit combinations appear to be differentially regulated by nicotine, with α3/α6 and α6α4β2* and α5α4β2* not upregulating or decreasing in response to nicotine while α6β2 (nonα4) nAChR increase in response to nicotine.

    “Importantly, different β2*-subunit combinations appear to be differentially regulated by nicotine, with α3/α6 and α6α4β2* and α5α4β2* not upregulating or decreasing in response to nicotine38, 85-88 while α6β2 (nonα4) nAChR increase in response to nicotine88.”

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Authors
McCallum, S. E., Parameswaran, N., Bordia, T., Fan, H., Tyndale, R. F., Langston, J. W., McIntosh, J. M., & Quik, M.
Affiliations
  • Parkinson's Institute and Clinical Center (US)
  • Johns Hopkins University (US)
  • Centre for Addiction and Mental Health (CA)
  • University of Utah (US)
Corresponding author
Quik, Maryka
Venue
Journal of Neurochemistry
Publisher
Wiley
Published
2006-01-26
Volume
96
Issue
4
Pages
1028-1041
ISSN
  • 0022-3042 (ISSN-L)
  • 1471-4159
OpenAlex
W1579854617
Cited by
44
References
9
Citations by year
2020: 2 · 2019: 2 · 2018: 1 · 2015: 6 · 2014: 5 · 2013: 2 · 2012: 1
FWCI
2.44
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Neurochemistry (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • National Institute of Mental Health (MH53631, R01MH053631)
  • National Institute on Drug Abuse (R01DA012242, DA12242)
  • National Institute of Neurological Disorders and Stroke (R01NS047162, NS42091, NS47162, R01NS042091)
  • National Institute of Environmental Health Sciences (U54ES012077, ES12077)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Nicotinic Acetylcholine Receptors Study
  • Health Sciences › Medicine › Physiology › Smoking Behavior and Cessation
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
chronic nicotine, nicotinic acetylcholine receptors, alpha4 nAChR, striatum, dopamine release, dopamine uptake, receptor up-regulation, primate brain, nicotine dependence, smoking
MeSH terms
Administration, Oral, Animals, Biological Transport, Corpus Striatum, Cotinine, Dopamine, Nicotine, Putamen, Receptors, Nicotinic, Saimiri, Synaptosomes

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