Evidence map›Paper›PMID 23276279›Full record

ArticleBiochemistry2013

An unusual conformation of γ-melanocyte-stimulating hormone analogues leads to a selective human melanocortin 1 receptor antagonist for targeting melanoma cells.

Minying Cai, Magda Stankova, Dhanasekaran Muthu, Alexander Mayorov, Zhehui Yang, Devendra Trivedi, Christopher Cabello, Victor J Hruby

Open access · greenAbstract read
In one paragraph

Article in Biochemistry, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
–field-weighted citation impact, top 91% 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

14 citing papers in PubMed, 16 citations in OpenAlex.

  1. An mRNA Display Approach for Covalent Targeting of aJournal of the American Chemical Society · 2025
    Article
  2. Article
  3. Article
  4. Article
  5. An mRNA Display Approach for Covalent Targeting of abioRxiv : the preprint server for biology · 2024
    Article
  6. Article
  7. Demonstration of a Common DPheJournal of medicinal chemistry · 2022
    Article
  8. Review
  9. Review
  10. Article
  11. Bench-top to clinical therapies: A review of melanocortin ligands from 1954 to 2016.Biochimica et biophysica acta. Molecular basis of disease · 2017
    Review
  12. Article
  13. Review
  14. Review
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 1 institution in 1 country.

Minying CaiDepartment of Chemistry and Biochemistry, 1306 East University Boulevard, University of Arizona, Tucson, AZ 85721, USA.
Magda Stankova
Dhanasekaran Muthu
Alexander Mayorov
Zhehui Yang
Devendra Trivedi
Christopher Cabello
Victor J Hruby
University of Arizona · US

Funding

THERAPEUTIC PROFILES OF OPIOID DELTA RECEPTORS--NEW MODALITIESP01DA006284 · NIDA · UNIVERSITY OF ARIZONA · PI HRUBY, VICTOR J · 1989 to 2015
$14.8M
NOVEL NON-PEPTIDE OPIOID LIGANDS FOR PAINR01DA013449 · NIDA · UNIVERSITY OF ARIZONA · PI HRUBY, VICTOR J · 2000 to 2015
$6.8M
PEPTIDE HORMONE STRUCTURE &FUNCTIONR01DK017420 · NIDDK · UNIVERSITY OF ARIZONA · PI HRUBY, VICTOR J · 1986 to 2010
$2.8M
NIDA NIH HHS DA06284NIDA NIH HHS P01 DA006284NIDA NIH HHS R01 DA013449NIDDK NIH HHS DK17420NIDDK NIH HHS R01 DK017420
6 · The paper itself

Abstract

γ-MSH (γ-melanocyte-stimulating hormone, H-Tyr-Val-Met-Gly-His-Phe-Arg-Trp-Asp-Arg-Phe-Gly-OH), with its exquisite specificity and potency, has recently created much excitement as a drug lead. However, this peptide is like most peptides susceptible to proteolysis in vivo, which potentially decreases its beneficial activities. In our continued effort to design a proteolytically stable ligand with specific receptor binding, we have engineered peptides by cyclizing γ-MSH using a thioether bridge. A number of novel cyclic truncated γ-MSH analogues were designed and synthesized, in which a thioether bridge was incorporated between a cysteine side chain and an N-terminal bromoacyl group. One of these peptides, cyclo-[(CH(2))(3)CO-Gly(1)-His(2)-D-Phe(3)-Arg(4)-D-Trp(5)-Cys(S-)(6)]-Asp(7)-Arg(8)-Phe(9)-Gly(10)-NH(2), demonstrated potent antagonist activity and receptor selectivity for the human melanocortin 1 receptor (hMC1R) (IC(50) = 17 nM). This novel peptide is the most selective antagonist for the hMC1R to date. Further pharmacological studies have shown that this peptide can specifically target melanoma cells. The nuclear magnetic resonance analysis of this peptide in a membrane-like environment revealed a new turn structure, specific to the hMC1R antagonist, at the C-terminus, where the side chain and backbone conformation of D-Trp(5) and Phe(9) of the peptide contribute to hMC1R selectivity. Cyclization strategies represent an approach for stabilizing bioactive peptides while keeping their full potencies and should boost applications of peptide-based drugs in human medicine.

Indexed as

Amino Acid SequenceAntineoplastic AgentsCell Line, Tumorgamma-MSHHumansHydrogen BondingInhibitory Concentration 50Melanocyte-Stimulating HormonesMelanomaMolecular Dynamics SimulationMolecular Targeted TherapyPeptides, CyclicProtein BindingProtein Structure, SecondaryReceptor, Melanocortin, Type 1Structure-Activity RelationshipAntineoplastic Agentscyclo((CH2)3-Gly-His-D-Phe-Arg-D-Trp-Cys(S-))-Asp-Arg-Phe-Gly-NH2gamma-MSHMelanocyte-Stimulating HormonesPeptides, CyclicReceptor, Melanocortin, Type 1SHU 9119

Identifiers

PMID23276279
PMCPMC3641192
OpenAlexW1971785927

What OpenQuestion holds

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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.