Evidence map›Paper›PMID 22451652›Full record

ArticleThe Journal of biological chemistry2012

The mechanistic basis for noncompetitive ibogaine inhibition of serotonin and dopamine transporters.

Simon Bulling, Klaus Schicker, Yuan-Wei Zhang, Thomas Steinkellner, Thomas Stockner, Christian W Gruber, Stefan Boehm, Michael Freissmuth, Gary Rudnick, Harald H Sitte and 1 more

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 78 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
78citing papers in PubMed, 1 pooled it
3.1field-weighted citation impact, top 8% 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

78 citing papers in PubMed, 1 synthesis or guideline pooled it, 123 citations in OpenAlex.

  1. Pooled it
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  13. Tricyclic and tetracyclic antidepressants upregulate VMAT2 activity and rescue disease-causing VMAT2 variants.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2024
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  15. The Nonclassic Psychedelic Ibogaine Disrupts Cognitive Maps.Biological psychiatry global open science · 2024
    Article
  16. Emerging functions within the enzyme families of plant alkaloid biosynthesis.Phytochemistry reviews : proceedings of the Phytochemical Society of Europe · 2023
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  18. Molecular basis and mechanism of action ofChinese herbal medicines · 2023
    Review
  19. Persistent binding at dopamine transporters determines sustained psychostimulant effects.Proceedings of the National Academy of Sciences of the United States of America · 2023
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  20. Article

18 more citing papers are in PubMed but not listed here.

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

11 authors at 2 institutions in 2 countries.

Simon BullingCenter of Physiology and Pharmacology, Medical University Vienna, Vienna, Austria.
Klaus Schicker
Yuan-Wei Zhang
Thomas Steinkellner
Thomas Stockner
Christian W Gruber
Stefan Boehm
Michael Freissmuth
Gary Rudnick
Harald H Sitte
Walter Sandtner
Medical University of Vienna · ATYale University · US

Funding

ION AND BIOGENIC AMINE TRANSPORT MECHANISMSR01DA007259 · NIDA · YALE UNIVERSITY · PI RUDNICK, GARY W · 1992 to 2016
$4.7M
NEUROTRANSMITTER TRANSPORTR01DA008213 · NIDA · YALE UNIVERSITY · PI RUDNICK, GARY W · 1993 to 2014
$3.5M
Austrian Science Fund FWF W 1232NIDA NIH HHS DA007259NIDA NIH HHS R01 DA007259NIDA NIH HHS R01 DA008213
6 · The paper itself

Abstract

Ibogaine, a hallucinogenic alkaloid proposed as a treatment for opiate withdrawal, has been shown to inhibit serotonin transporter (SERT) noncompetitively, in contrast to all other known inhibitors, which are competitive with substrate. Ibogaine binding to SERT increases accessibility in the permeation pathway connecting the substrate-binding site with the cytoplasm. Because of the structural similarity between ibogaine and serotonin, it had been suggested that ibogaine binds to the substrate site of SERT. The results presented here show that ibogaine binds to a distinct site, accessible from the cell exterior, to inhibit both serotonin transport and serotonin-induced ionic currents. Ibogaine noncompetitively inhibited transport by both SERT and the homologous dopamine transporter (DAT). Ibogaine blocked substrate-induced currents also in DAT and increased accessibility of the DAT cytoplasmic permeation pathway. When present on the cell exterior, ibogaine inhibited SERT substrate-induced currents, but not when it was introduced into the cytoplasm through the patch electrode. Similar to noncompetitive transport inhibition, the current block was not reversed by increasing substrate concentration. The kinetics of inhibitor binding and dissociation, as determined by their effect on SERT currents, indicated that ibogaine does not inhibit by forming a long-lived complex with SERT, but rather binds directly to the transporter in an inward-open conformation. A kinetic model for transport describing the noncompetitive action of ibogaine and the competitive action of cocaine accounts well for the results of the present study.

Indexed as

AnimalsBinding SitesCell LineDopamine Plasma Membrane Transport ProteinsExcitatory Amino Acid AntagonistsHumansIbogaineKineticsPatch-Clamp TechniquesRadioligand AssaySerotonin Plasma Membrane Transport ProteinsXenopus laevisDopamine Plasma Membrane Transport ProteinsExcitatory Amino Acid AntagonistsIbogaineSerotonin Plasma Membrane Transport Proteins

Identifiers

PMID22451652
PMCPMC3365767
OpenAlexW2045056309

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.