Evidence map›Paper›PMID 23754417›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2013

Discovery of positive allosteric modulators and silent allosteric modulators of the μ-opioid receptor.

Neil T Burford, Mary J Clark, Tom S Wehrman, Samuel W Gerritz, Martyn Banks, Jonathan O'Connell, John R Traynor, Andrew Alt

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 93 papers.

0numbers the graph read from it
0cells of the map it votes in
93citing papers in PubMed
4.9field-weighted citation impact, top 4% 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

93 citing papers in PubMed, 151 citations in OpenAlex.

  1. Article
  2. Molecular mechanism of allosteric modulation of opioid receptors.Signal transduction and targeted therapy · 2026
    Article
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  16. Article
  17. Advances in the structural understanding of opioid allostery.Trends in pharmacological sciences · 2025
    Review
  18. Article
  19. Article
  20. Article

33 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

8 authors at 3 institutions in 1 country.

Neil T BurfordMolecular Sciences and Candidate Optimization, Bristol-Myers Squibb Company, Wallingford, CT 06492, USA.
Mary J Clark
Tom S Wehrman
Samuel W Gerritz
Martyn Banks
Jonathan O'Connell
John R Traynor
Andrew Alt
Bristol-Myers Squibb (United States) · USUniversity of Michigan–Ann Arbor · USDiscoveRx (United States) · US

Funding

Cellular Mechanisms in Animal Models of DepressionR01MH083754 · NIMH · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI TRAYNOR, JOHN R. · 2011 to 2011
$386k
NIMH NIH HHS MH083754NIMH NIH HHS R01 MH083754
6 · The paper itself

Abstract

μ-Opioid receptors are among the most studied G protein-coupled receptors because of the therapeutic value of agonists, such as morphine, that are used to treat chronic pain. However, these drugs have significant side effects, such as respiratory suppression, constipation, allodynia, tolerance, and dependence, as well as abuse potential. Efforts to fine tune pain control while alleviating the side effects of drugs, both physiological and psychological, have led to the development of a wide variety of structurally diverse agonist ligands for the μ-opioid receptor, as well as compounds that target κ- and δ-opioid receptors. In recent years, the identification of allosteric ligands for some G protein-coupled receptors has provided breakthroughs in obtaining receptor subtype-selectivity that can reduce the overall side effect profiles of a potential drug. However, positive allosteric modulators (PAMs) can also have the specific advantage of only modulating the activity of the receptor when the orthosteric agonist occupies the receptor, thus maintaining spatial and temporal control of receptor signaling in vivo. This second advantage of allosteric modulators may yield breakthroughs in opioid receptor research and could lead to drugs with improved side-effect profiles or fewer tolerance and dependence issues compared with orthosteric opioid receptor agonists. Here, we describe the discovery and characterization of μ-opioid receptor PAMs and silent allosteric modulators, identified from high-throughput screening using a β-arrestin-recruitment assay.

Indexed as

Allosteric RegulationAllosteric SiteAnimalsArrestinsbeta-ArrestinsCell LineCHO CellsCricetinaeCricetulusDrug DiscoveryHigh-Throughput Screening AssaysHumansLigandsRatsReceptors, Opioid, muSulfonesArrestinsbeta-ArrestinsBMS-986121BMS-986122LigandsReceptors, Opioid, muSulfonesThiazolesanalgesiaDAMGOendomorphinendorphinsenkephalins

Identifiers

PMID23754417
PMCPMC3696790
OpenAlexW2086618906

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.