Evidence map›Paper›PMID 26111639›Full record

ArticlePurinergic signalling2015

Efficient, large-scale synthesis and preclinical studies of MRS5698, a highly selective A3 adenosine receptor agonist that protects against chronic neuropathic pain.

Dilip K Tosh, Janak Padia, Daniela Salvemini, Kenneth A Jacobson

Open access · bronzeAbstract read
In one paragraph

Article in Purinergic signalling, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
4.5field-weighted citation impact, top 6% 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

43 citing papers in PubMed, 51 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Review
  5. Mitochondrial AThe Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  6. Potent and Selective Human 5-HTJournal of medicinal chemistry · 2024
    Article
  7. Article
  8. 2-Substituted (N)-Methanocarba AACS pharmacology & translational science · 2024
    Article
  9. Covalently Binding Adenosine APurinergic signalling · 2024
    Article
  10. Structure activity relationships of 5-HTEuropean journal of medicinal chemistry · 2023
    Article
  11. First Potent Macrocyclic AACS pharmacology & translational science · 2023
    Article
  12. Therapeutic Potential of Highly Selective AMolecules (Basel, Switzerland) · 2022
    Review
  13. Interaction of AEuropean journal of medicinal chemistry · 2022
    Article
  14. AEuropean journal of medicinal chemistry · 2022
    Article
  15. Optical Control of Adenosine AFrontiers in immunology · 2022
    Article
  16. Review
  17. Article
  18. Optical control of adenosine APharmacological research · 2021
    Article
  19. Review
  20. 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 3 institutions in 1 country.

Dilip K ToshMolecular Recognition Section, Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, 20892, USA.
Janak Padia
Daniela Salvemini
Kenneth A Jacobson
National Institute of Diabetes and Digestive and Kidney Diseases · USNational Institutes of Health · USSaint Louis University · US

Funding

Development Of Drugs Acting At Adenosine ReceptorsZIADK031117 · NIDDK · NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES · PI JACOBSON, KENNETH ALAN · 2009 to 2025
$10.4M
A3AR agonists to prevent chemotherapy-induced painful peripheral neuropathyR01CA169519 · NCI · SAINT LOUIS UNIVERSITY · PI SALVEMINI, DANIELA · 2013 to 2017
$1.5M
Drugs that Act at Adenosine ReceptorsZ01DK031117 · NIDDK · NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES · PI JACOBSON, KENNETH ALAN · 1991 to 2008
$854k
Intramural NIH HHS Z01 DK031117Intramural NIH HHS ZIA DK031117NCI NIH HHS R01 CA169519NCI NIH HHS R01CA169519NIDDK NIH HHS Z01 DK031117-27
6 · The paper itself

Abstract

We reported that 2-(3,4-difluorophenylethynyl)-N (6)-3-chlorobenzyl (N)-methanocarba adenosine derivative 1 (MRS5698) binds selectively to human and mouse A3 adenosine receptors (A3ARs, K i 3 nM). It is becoming an important pharmacological tool for defining A3AR effects and is orally active in a chronic neuropathic pain model. Here, we introduce a new synthetic route for MRS5698 from D-ribose, suitable for a scale-up on a multi-gram scale, and we measure in vitro and in vivo ADME-Tox parameters. MRS5698 was very stable in vitro, failed to inhibit CYPs at <10 μM, and was largely bound to plasma proteins. It was well tolerated in the rat at doses of ≤200 mg/kg i.p. A 1 mg/kg i.p. dose in the mouse displayed t 1/2 of 1.09 h and plasma Cmax of 204 nM at 1 h with an AUC of 213 ng × h/mL. CACO-2 bidirectional transport studies suggested intestinal efflux of MRS5698 (efflux ratio 86). Although the oral %F is only 5 %, the beneficial effect to reverse pain lasted for at least 2 h in the CCI model in rats, using the same vehicle for oral administration of a high dose. The stability, low toxicity, lack of CYP interaction, pharmacokinetic half-life, and in vivo efficacy suggest that MRS5698 is a preferred compound for further consideration as a treatment for neuropathic pain.

Indexed as

AdenosineAdenosine A3 Receptor AgonistsAnimalsBiological Transport, ActiveBlood ProteinsCaco-2 CellsChronic DiseaseConstriction, PathologicHalf-LifeHumansIn Vitro TechniquesMaleMicrosomes, LiverMutagenicity TestsNeuralgiaProtein BindingAdenosineAdenosine A3 Receptor AgonistsBlood ProteinsMRS5698

Identifiers

PMID26111639
PMCPMC4529848
OpenAlexW785553194

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.