Evidence map›Paper›PMID 25954526›Full record

ArticleInternational journal of medicinal chemistry2012

MDAN-21: A Bivalent Opioid Ligand Containing mu-Agonist and Delta-Antagonist Pharmacophores and Its Effects in Rhesus Monkeys.

Mario D Aceto, Louis S Harris, S Stevens Negus, Matthew L Banks, Larry D Hughes, Eyup Akgün, Philip S Portoghese

Open access · hybridAbstract read
In one paragraph

Article in International journal of medicinal chemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
0.6field-weighted citation impact, top 36% 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

19 citing papers in PubMed, 33 citations in OpenAlex.

  1. Article
  2. Article
  3. Tryptophan Substitution in CJ-15,208 (Pharmaceuticals (Basel, Switzerland) · 2023
    Article
  4. Review
  5. Review
  6. Novel Mixed NOP/Opioid Receptor Peptide Agonists.Journal of medicinal chemistry · 2021
    Article
  7. Article
  8. Review
  9. Article
  10. Review
  11. Article
  12. Article
  13. Review
  14. Article
  15. Breaking barriers to novel analgesic drug development.Nature reviews. Drug discovery · 2017
    Review
  16. Article
  17. Article
  18. Article
  19. Ligands that interact with putative MOR-mGluR5 heteromer in mice with inflammatory pain produce potent antinociception.Proceedings of the National Academy of Sciences of the United States of America · 2013
    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

7 authors at 2 institutions in 1 country.

Mario D AcetoDepartment of Pharmacology and Toxicology, School of Medicine, Virginia Commonwealth University, Richmond, VA 23298, USA.
Louis S HarrisDepartment of Pharmacology and Toxicology, School of Medicine, Virginia Commonwealth University, Richmond, VA 23298, USA.
S Stevens NegusDepartment of Pharmacology and Toxicology, School of Medicine, Virginia Commonwealth University, Richmond, VA 23298, USA.
Matthew L BanksDepartment of Pharmacology and Toxicology, School of Medicine, Virginia Commonwealth University, Richmond, VA 23298, USA.
Larry D HughesDepartment of Pharmacology and Toxicology, School of Medicine, Virginia Commonwealth University, Richmond, VA 23298, USA.
Eyup AkgünDepartment of Medicinal Chemistry, College of Pharmacy, University of Minnesota, Minneapolis, MN 55455, USA.
Philip S PortogheseDepartment of Medicinal Chemistry, College of Pharmacy, University of Minnesota, Minneapolis, MN 55455, USA.
Virginia Commonwealth University · USUniversity of Minnesota · US

Funding

TRAINING IN THE PHARMACOLOGY OF ABUSED DRUGST32DA007027 · NIDA · VIRGINIA COMMONWEALTH UNIVERSITY · PI William L. Dewey · 1985 to 2026
$14.7M
SELECTIVE NONPEPTIDE OPIOID LIGANDSR37DA001533 · NIDA · UNIVERSITY OF MINNESOTA TWIN CITIES · PI PORTOGHESE, PHILIP S · 1997 to 2006
$3.3M
Selective Opioid LigandsR01DA001533 · NIDA · UNIVERSITY OF MINNESOTA TWIN CITIES · PI PORTOGHESE, PHILIP S · 1985 to 2011
$3.0M
NOVEL DELTA OPIOIDS--ANALGESIC EFFECTS &ABUSE LIABILITYR01DA011460 · NIDA · VIRGINIA COMMONWEALTH UNIVERSITY · PI NEGUS, SIDNEY S · 1999 to 2009
$1.9M
NIDA NIH HHS R01 DA001533NIDA NIH HHS R01 DA011460NIDA NIH HHS R37 DA001533NIDA NIH HHS T32 DA007027
6 · The paper itself

Abstract

MDAN-21, 7'-{2-[(7-{2-[({(5α, 6α)-4,5-Epoxy-3,14-dihydroxy-17-methylmorphin-6-yl}-aminocarbonyl)metoxy]-acetylamino}-heptylaminocarbonyl)-methoxy]-acetylamino}-naltrindole, a bivalent opioid ligand containing a mu-opioid receptor agonist (derived from oxymorphone) linked to the delta-opioid receptor antagonist (related to naltrindole) by a spacer of 21 atoms, was reported to have potent analgesic properties in mice. Tolerance, physical dependence, and conditioned place preference were not evident in that species. The finding that bivalent ligands in this series, with spacers 19 atoms or greater, were devoid of tolerance and dependence led to the proposal that MDAN-21 targets heteromeric mu-delta-opioid receptors. The present study focused on its effects in nonhuman primates (Macaca mulatta), a species with a physiology and behavioral repertoire not unlike humans. With regard to opioids, this species usually better predicts clinical outcomes. MDAN-21 substituted for morphine in morphine-dependent monkeys in the remarkably low dose range 0.006-0.032 mg/kg, subcutaneously. Although MDAN-21 failed to produce reliable thermal analgesia in the dose range 0.0032-0.032 mg/kg, intramuscularly, it was active in the same dose range and by the same route of administration, in the capsaicin-induced thermal allodynia assay. The results suggest that MDAN-21 may be useful in the treatment of opioid dependence and allodynia. The data provide additional evidence that opioid withdrawal is associated with sensitized pain.

Identifiers

PMID25954526
PMCPMC4412046
OpenAlexW2158979382

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.