Cited by 42Nicotinic Acetylcholine Receptors StudySmoking Behavior and CessationNeuroscience and Neuropharmacology Research

Chronic Nicotine Exposure Alters the Neurophysiology of Habenulo-Interpeduncular Circuitry

Open access
Arvin, Matthew C., Jin, Xiao-Tao, Yan, Yijin, Wang, Yong, Ramsey, Matthew D., Kim, Veronica J., Beckley, Nicole A., Henry, Brittany A. +1 more·2019·The Journal of Neuroscience

Abstract

Antagonism of nicotinic acetylcholine receptors (nAChRs) in the medial habenula (MHb) or interpeduncular nucleus (IPN) triggers withdrawal-like behaviors in mice chronically exposed to nicotine, implying that nicotine dependence involves the sensitization of nicotinic signaling. Identification of receptor and/or neurophysiological mechanisms underlying this sensitization is important, as it could promote novel therapeutic strategies to reduce tobacco use. Using an approach involving photoactivatable nicotine, we previously demonstrated that chronic nicotine (cNIC) potently enhances nAChR function in dendrites of MHb neurons. However, whether cNIC modulates downstream components of the habenulo-interpeduncular (Hb-IP) circuit is unknown. In this study, cNIC-mediated changes to Hb-IP nAChR function were examined in mouse (male and female) brain slices using molecular, electrophysiological, and optical techniques. cNIC enhanced action potential firing and modified spike waveform characteristics in MHb neurons. Nicotine uncaging revealed nAChR functional enhancement by cNIC on proximal axonal membranes. Similarly, nAChR-driven glutamate release from MHb axons was enhanced by cNIC. In IPN, the target structure of MHb axons, neuronal morphology, and nAChR expression is complex, with stronger nAChR function in the rostral subnucleus [rostral IPN (IPR)]. As in MHb, cNIC induced strong upregulation of nAChR function in IPN neurons. This, coupled with cNIC-enhanced nicotine-stimulated glutamate release, was associated with stronger depolarization responses to brief (1 ms) nicotine uncaging adjacent to IPR neurons. Together, these results indicate that chronic exposure to nicotine dramatically alters nicotinic cholinergic signaling and cell excitability in Hb-IP circuits, a key pathway involved in nicotine dependence. SIGNIFICANCE STATEMENT This study uncovers several neuropharmacological alterations following chronic exposure to nicotine in a key brain circuit involved in nicotine dependence. These results suggest that smokers or regular users of electronic nicotine delivery systems (i.e., “e-cigarettes”) likely undergo sensitization of cholinergic circuitry in the Hb-IP system. Reducing the activity of Hb-IP nAChRs, either volitionally during smoking cessation or inadvertently via receptor desensitization during nicotine intake, may be a key trigger of withdrawal in nicotine dependence. Escalation of nicotine intake in smokers, or tolerance, may involve stimulation of these sensitized cholinergic pathways. Smoking cessation therapeutics are only marginally effective, and by identifying cellular/receptor mechanisms of nicotine dependence, our results take a step toward improved therapeutic approaches for this disorder.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1523/jneurosci.2816-18.2019

Cites

51 of 51 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Chronic nicotine exposure increases action potential firing and nicotine sensitivity of MHb and IPN neurons.

    “Interestingly, chronic nicotine exposure increases action potential firing and nicotine sensitivity of MHb and IPN neurons (Arvin et al. 2019).”

    From Mechanisms of Nicotine Addiction (2021) · cites this paper as Arvin et al. 2019

    The Discussion (page not provided) reports enhanced action-potential firing in MHb neurons and increased nicotinic receptor function in MHb and IPN neurons. The section on nicotine sensitivity in rostral IPN neurons reports stronger nicotine-evoked depolarization, but does not report increased action-potential firing in IPN neurons; most recorded IPN neurons were not spontaneously firing. (LLM, conf=0.88)

    Experimental — accuracy not yet measured

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Arvin, M. C., Jin, X.-T., Yan, Y., Wang, Y., Ramsey, M. D., Kim, V. J., Beckley, N. A., Henry, B. A., & Drenan, R. M.
Affiliations
Northwestern University (US)
Venue
The Journal of Neuroscience
Published
2019-03-13
Volume
39
Issue
22
Pages
4268-4281
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W2921744291
Cited by
42
References
51
Citations by year
2026: 2 · 2025: 8 · 2024: 5 · 2023: 7 · 2022: 5 · 2021: 5 · 2020: 9 · 2019: 1
FWCI
1.65
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Pharmaceutical Research and Manufacturers of America Foundation
  • National Institutes of Health
  • National Institute on Drug Abuse (R33DA044460, R21DA044460, R01DA040626)
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 exposure, nicotinic acetylcholine receptors, medial habenula, interpeduncular nucleus, nicotine dependence, nicotine withdrawal, glutamate release, neuronal excitability, electronic cigarettes, tobacco use reduction, sex differences, nicotine tolerance, receptor desensitization
MeSH terms
Animals, Female, Male, Neural Pathways, Synaptic Transmission, Nicotine, Receptors, Nicotinic, Tobacco Use Disorder, Nicotinic Agonists, Habenula, Mice, Interpeduncular Nucleus

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review