Evidence map›Paper›PMID 26269589›Full record

ArticleThe Journal of biological chemistry2015

The nicotine metabolite, cotinine, alters the assembly and trafficking of a subset of nicotinic acetylcholine receptors.

Ashley M Fox, Faruk H Moonschi, Christopher I Richards

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.0field-weighted citation impact, top 14% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

17 citing papers in PubMed, 27 citations in OpenAlex.

  1. Can Treatment Support Mitigate Nicotine Metabolism-Based Disparities in Smoking Abstinence? Secondary Analysis of the Helping HAND 4 Trial.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2023
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Ashley M FoxFrom the Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506.
Faruk H MoonschiFrom the Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506.
Christopher I RichardsFrom the Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506 chris.richards@uky.edu.
University of Kentucky · US

Funding

Training in Drug Abuse Related Research.T32DA016176 · NIDA · UNIVERSITY OF KENTUCKY · PI DWOSKIN, LINDA P · 2004 to 2020
$4.0M
Single molecule determination of nAChR structural assembly for therapeutic targetingR33DA038817 · NIDA · UNIVERSITY OF KENTUCKY · PI RICHARDS, CHRISTOPHER I · 2017 to 2018
$759k
Single molecule determination of nAChR structural assembly for therapeutic targetingR21DA038817 · NIDA · UNIVERSITY OF KENTUCKY · PI RICHARDS, CHRISTOPHER I · 2015 to 2016
$372k
NIDA NIH HHS DA016176NIDA NIH HHS DA038817NIDA NIH HHS R21 DA038817NIDA NIH HHS R33 DA038817NIDA NIH HHS T32 DA016176
6 · The paper itself

Abstract

Exposure to nicotine alters the trafficking and assembly of nicotinic receptors (nAChRs), leading to their up-regulation on the plasma membrane. Although the mechanism is not fully understood, nicotine-induced up-regulation is believed to contribute to nicotine addiction. The effect of cotinine, the primary metabolite of nicotine, on nAChR trafficking and assembly has not been extensively investigated. We utilize a pH-sensitive variant of GFP, super ecliptic pHluorin, to differentiate between intracellular nAChRs and those expressed on the plasma membrane to quantify changes resulting from cotinine and nicotine exposure. Similar to nicotine, exposure to cotinine increases the number of α4β2 receptors on the plasma membrane and causes a redistribution of intracellular receptors. In contrast to this, cotinine exposure down-regulates α6β2β3 receptors. We also used single molecule fluorescence studies to show that cotinine and nicotine both alter the assembly of α4β2 receptors to favor the high sensitivity (α4)2(β2)3 stoichiometry.

Indexed as

AnimalsCell DifferentiationCell Line, TumorCell MembraneCotinineGreen Fluorescent ProteinsHEK293 CellsHumansHydrogen-Ion ConcentrationMiceMicroscopy, FluorescenceNicotineProtein SubunitsProtein TransportReceptors, NicotinicTobacco Use DisorderCotinineGreen Fluorescent ProteinsNicotinenicotinic receptor alpha4beta2Protein SubunitsReceptors, Nicotiniccell surface receptorcotininefluorescencefluorescence microscopyin vivo imagingmembrane proteinmembrane traffickingmicroscopynicotinenicotinic acetylcholine receptors (nAChR)single-molecule biophysicsup-regulation

Identifiers

PMID26269589
PMCPMC4591823
OpenAlexW2157700909

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.