Evidence map›Paper›PMID 32810771›Full record

ArticleEuropean journal of medicinal chemistry2020

Design, synthesis, and electrophysiological evaluation of NS6740 derivatives: Exploration of the structure-activity relationship for alpha7 nicotinic acetylcholine receptor silent activation.

Maria Chiara Pismataro, Nicole A Horenstein, Clare Stokes, Marta Quadri, Marco De Amici, Roger L Papke, Clelia Dallanoce

Open access · greenAbstract read
In one paragraph

Article in European journal of medicinal chemistry, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.0field-weighted citation impact, top 25% 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

9 citing papers in PubMed, 14 citations in OpenAlex.

  1. Review
  2. Differential Activation and Desensitization States Promoted by NoncanonicalThe Journal of pharmacology and experimental therapeutics · 2022
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  5. AI-Driven Synthetic Route Design Incorporated with Retrosynthesis Knowledge.Journal of chemical information and modeling · 2022
    Article
  6. Article
  7. Review
  8. Stable desensitization of αEuropean journal of pharmacology · 2021
    Article
  9. Therapeutic Targeting ofPharmacological reviews · 2021
    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

7 authors at 2 institutions in 2 countries.

Maria Chiara PismataroDepartment of Pharmaceutical Sciences, Medicinal Chemistry Section "Pietro Pratesi", University of Milan, Via L. Mangiagalli 25, 20133, Milan, Italy; Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, FL 32611-7200, USA; Department of Pharmacology and Therapeutics, University of Florida, P.O. Box 100267, Gainesville, FL 32610-0267, USA.
Nicole A HorensteinDepartment of Chemistry, University of Florida, P.O. Box 117200, Gainesville, FL 32611-7200, USA.
Clare StokesDepartment of Pharmacology and Therapeutics, University of Florida, P.O. Box 100267, Gainesville, FL 32610-0267, USA.
Marta QuadriDepartment of Pharmaceutical Sciences, Medicinal Chemistry Section "Pietro Pratesi", University of Milan, Via L. Mangiagalli 25, 20133, Milan, Italy; Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, FL 32611-7200, USA; Department of Pharmacology and Therapeutics, University of Florida, P.O. Box 100267, Gainesville, FL 32610-0267, USA.
Marco De AmiciDepartment of Pharmaceutical Sciences, Medicinal Chemistry Section "Pietro Pratesi", University of Milan, Via L. Mangiagalli 25, 20133, Milan, Italy.
Roger L PapkeDepartment of Pharmacology and Therapeutics, University of Florida, P.O. Box 100267, Gainesville, FL 32610-0267, USA.
Clelia DallanoceDepartment of Pharmaceutical Sciences, Medicinal Chemistry Section "Pietro Pratesi", University of Milan, Via L. Mangiagalli 25, 20133, Milan, Italy. Electronic address: clelia.dallanoce@unimi.it.
University of Milan · ITUniversity of Florida · US

Funding

Targeting of Alpha7 nAChR for therapeutic effectsR01GM057481 · NIGMS · UNIVERSITY OF FLORIDA · PI PAPKE, ROGER L · 2000 to 2023
$7.6M
NIGMS NIH HHS R01 GM057481
6 · The paper itself

Abstract

The α7 nicotinic acetylcholine receptor (nAChR) silent agonists, able to induce receptor desensitization and promote the α7 metabotropic function, are emerging as new promising therapeutic anti-inflammatory agents. Herein, we report the structure-activity relationship investigation of the archetypal silent agonist NS6740 (1,4-diazabicyclo[3.2.2]nonan-4-yl(5-(3-(trifluoromethyl)-phenyl)-furan-2-yl)methanone) (1) to elucidate the ligand-receptor interactions responsible for the α7 silent activation. In this study, NS6740 fragments 11-16 and analogs 17-32 were designed, synthesized, and assayed on human α7 nAChRs expressed in Xenopus laevis oocytes with two-electrode voltage clamping experiments. All together the structural portions of NS6740 were critical to engender its peculiar activity profile. The diazabicyclic nucleus was essential but not sufficient for inducing α7 silent activation. The central hydrogen-bond acceptor core and the aromatic moiety were crucial for promoting prolonged α7 receptor binding and sustained desensitization. Compounds 13 and 17 were efficacious partial agonists. Compounds 12, 21, 23-26, and 30 strongly desensitized α7 nAChR and therefore may be of interest for additional investigation of inflammation responses. We gained key structural information useful for further silent agonist development.

Indexed as

Drug Designalpha7 Nicotinic Acetylcholine ReceptorAnimalsAzabicyclo CompoundsChemistry Techniques, SyntheticElectrophysiological PhenomenaFuransHumansHydrogen BondingLigandsStructure-Activity RelationshipXenopus laevis1,4-diazabicyclo(3.2.2)nonan-4-yl(5-(3-(trifluoromethyl)phenyl)furan-2-yl)methanonealpha7 Nicotinic Acetylcholine ReceptorAzabicyclo CompoundsFuransLigands1,4-Diazabicyclo[3.2.2]nonaneElectrophysiologyPartial agonistSilent agonistStructure-activity relationship (SAR)α7 nicotinic acetylcholine receptor

Identifiers

PMID32810771
PMCPMC7590973
OpenAlexW3044056781

What OpenQuestion holds

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LicenceTDM
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.