Evidence map›Paper›PMID 21477640›Full record

ArticleNeuroscience2011

Psychotropic and nonpsychotropic cannabis derivatives inhibit human 5-HT(3A) receptors through a receptor desensitization-dependent mechanism.

W Xiong, B-N Koo, R Morton, L Zhang

Open access · greenAbstract read
In one paragraph

Article in Neuroscience, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.4field-weighted citation impact, top 19% 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

15 citing papers in PubMed, 31 citations in OpenAlex.

  1. The Pharmacological Profile of Plant-Derived Cannabinoids In Vitro.Current topics in behavioral neurosciences · 2026
    Review
  2. Article
  3. Review
  4. Review
  5. Review
  6. The Polypharmacological Effects of Cannabidiol.Molecules (Basel, Switzerland) · 2023
    Review
  7. Cannabidiol as a modulator of α7 nicotinic receptors.Cellular and molecular life sciences : CMLS · 2022
    Article
  8. Review
  9. Article
  10. Neuromolecular Mechanisms of Cannabis Action.Advances in experimental medicine and biology · 2021
    Review
  11. Membrane cholesterol dependence of cannabinoid modulation of glycine receptor.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2020
    Article
  12. Cannabidiol Affects the Bezold-Jarisch ReflexFrontiers in pharmacology · 2019
    Article
  13. Multiple mechanisms involved in the large-spectrum therapeutic potential of cannabidiol in psychiatric disorders.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2012
    Review
  14. Article
  15. Article
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

4 authors at 2 institutions in 1 country.

W XiongLaboratory for Integrative Neuroscience, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892, USA. xiongw@mail.nih.gov
B-N Koo
R Morton
L Zhang
National Institute on Alcohol Abuse and Alcoholism · USNational Institutes of Health · US

Funding

Intramural NIH HHS Z99 AA999999
6 · The paper itself

Abstract

Δ⁹ tetrahydrocannabinol (THC) and cannabidiol (CBD) are the principal psychoactive and nonpsychoactive components of cannabis. While most THC-induced behavioral effects are thought to depend on endogenous cannabinoid 1 (CB1) receptors, the molecular targets for CBD remain unclear. Here, we report that CBD and THC inhibited the function of human 5-HT(3A) receptors (h5-HT(3A)Rs) expressed in HEK 293 cells. The magnitude of THC and CBD inhibition was maximal 5 min after a continuous incubation with cannabinoids. The EC₅₀ values for CBD and THC-induced inhibition were 110 nM and 322 nM, respectively in HEK 293 cells expressing h5-HT(3A)Rs. In these cells, CBD and THC did not stimulate specific [³⁵S]-GTP-γs binding in membranes, suggesting that the inhibition by cannabinoids is unlikely mediated by a G-protein dependent mechanism. On the other hand, both CBD and THC accelerated receptor desensitization kinetics without significantly changing activation time. The extent of cannabinoid inhibition appeared to depend on receptor desensitization. Reducing receptor desensitization by nocodazole, 5-hydroxyindole and a point-mutation in the large cytoplasmic domain of the receptor significantly decreased CBD-induced inhibition. Similarly, the magnitude of THC and CBD-induced inhibition varied with the apparent desensitization rate of h5-HT(3A)Rs expressed in Xenopus oocytes. For instance, with increasing amount of h5-HT(3A)R cRNA injected into the oocytes, the receptor desensitization rate at steady state decreased. THC and CBD-induced inhibition was correlated with the change in the receptor desensitization rate. Thus, CBD and THC inhibit h5-HT(3A) receptors through a mechanism that is dependent on receptor desensitization.

Indexed as

CannabidiolDronabinolHEK293 CellsHumansMutagenesisPsychotropic DrugsReceptors, Serotonin, 5-HT3TransfectionCannabidiolDronabinolPsychotropic DrugsReceptors, Serotonin, 5-HT3

Identifiers

PMID21477640
PMCPMC3100474
OpenAlexW2082171170

What OpenQuestion holds

Textmetadata
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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.