Cited by 769Nicotinic Acetylcholine Receptors StudySmoking Behavior and CessationNeurotransmitter Receptor Influence on Behavior

Nicotine activates and desensitizes midbrain dopamine neurons

Pidoplichko, Volodymyr I., DeBiasi, Mariella, Williams, John T., Dani, John A.·1997·Nature

Abstract

Tobacco use in developed countries is estimated to be the single largest cause of premature death. Nicotine is the primary component of tobacco that drives use, and like other addictive drugs, nicotine reinforces self-administration and place preference in animal studies. Midbrain dopamine neurons normally help to shape behaviour by reinforcing biologically rewarding events, but addictive drugs such as cocaine can inappropriately exert a reinforcing influence by acting upon the mesolimbic dopamine system. Here we show that the same concentration of nicotine achieved by smokers activates and desensitizes multiple nicotinic receptors thereby regulating the activity of mesolimbic dopamine neurons. Initial application of nicotine can increase the activity of the dopamine neurons, which could mediate the rewarding aspects of tobacco use. Prolonged exposure to even these low concentrations of nicotine, however, can cause desensitization of the nicotinic receptors, which helps to explain acute tolerance to nicotine's effects. The effects suggest a cellular basis for reports that the first cigarette of the day is the most pleasurable, whereas the effect of subsequent cigarettes may depend on the interplay between activation and desensitization of multiple nicotinic receptors.

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Crossref · 10.1038/37120

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Authors
Pidoplichko, V. I., DeBiasi, M., Williams, J. T., & Dani, J. A.
Affiliations
  • Baylor College of Medicine (US)
  • Oregon Health & Science University (US)
Corresponding author
Dani, John A.
Venue
Nature
Published
1997-11
Volume
390
Issue
6658
Pages
401-404
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W1635375164
Cited by
769
References
32
Citations by year
2026: 6 · 2025: 11 · 2024: 6 · 2023: 8 · 2022: 13 · 2021: 10 · 2020: 59 · 2019: 12 · 2018: 17 · 2017: 9 · 2016: 25 · 2015: 16 · 2014: 23 · 2013: 35 · 2012: 28
FWCI
10.92
Type
journal article
Language
en
Open access
closed
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
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 › Neurotransmitter Receptor Influence on Behavior
Keywords
nicotine, nicotinic acetylcholine receptors, receptor desensitization, midbrain dopaminergic neurons, mesolimbic dopamine system, nicotine tolerance, tobacco dependence, drug reinforcement, nicotine self-administration
MeSH terms
Acetylcholine, Action Potentials, Animals, Dopamine, Drug Tolerance, Ganglionic Stimulants, Neurons, Nicotine, Nucleus Accumbens, Receptors, Nicotinic, Time Factors, Rats, Sprague-Dawley, Patch-Clamp Techniques, Rats, In Vitro Techniques

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