Evidence map›Paper›PMID 31709767›Full record

ArticleChemMedChem2020

Flexible Fragment Growing Boosts Potency of Quorum-Sensing Inhibitors against Pseudomonas aeruginosa Virulence.

Michael Zender, Florian Witzgall, Alexander Kiefer, Benjamin Kirsch, Christine K Maurer, Andreas M Kany, Ningna Xu, Stefan Schmelz, Carsten Börger, Wulf Blankenfeldt and 1 more

Open access · hybridAbstract read
In one paragraph

Article in ChemMedChem, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.1field-weighted citation impact, top 22% 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

22 citing papers in PubMed, 33 citations in OpenAlex.

  1. Article
  2. Review
  3. Frontiers in bioinformatics · 2026
    Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Drug Repurposing TargetingAntibiotics (Basel, Switzerland) · 2022
    Article
  17. Review
  18. Quorum Sensing Inhibitors to QuenchPharmaceuticals (Basel, Switzerland) · 2021
    Review
  19. Article
  20. 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

11 authors at 2 institutions in 1 country.

Michael ZenderDrug Design and Optimization (DDOP), Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS)-Helmholtz Centre for Infection Research (HZI), Campus E8.1, 66123, Saarbrücken, Germany.
Florian WitzgallStructure and Function of Proteins (SFPR), Helmholtz Centre for Infection Research (HZI), Inhoffenstr. 7, 38124, Braunschweig, Germany.
Alexander KieferDrug Design and Optimization (DDOP), Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS)-Helmholtz Centre for Infection Research (HZI), Campus E8.1, 66123, Saarbrücken, Germany.
Benjamin KirschDrug Design and Optimization (DDOP), Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS)-Helmholtz Centre for Infection Research (HZI), Campus E8.1, 66123, Saarbrücken, Germany.
Christine K MaurerDrug Design and Optimization (DDOP), Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS)-Helmholtz Centre for Infection Research (HZI), Campus E8.1, 66123, Saarbrücken, Germany.
Andreas M KanyDrug Design and Optimization (DDOP), Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS)-Helmholtz Centre for Infection Research (HZI), Campus E8.1, 66123, Saarbrücken, Germany.ORCID 0000-0001-7580-3658
Ningna XuLehrstuhl für Biochemie, Universität Bayreuth, Universitätsstr. 30, 95447, Bayreuth, Germany.
Stefan SchmelzStructure and Function of Proteins (SFPR), Helmholtz Centre for Infection Research (HZI), Inhoffenstr. 7, 38124, Braunschweig, Germany.
Carsten BörgerPharmBioTec GmbH, Science Park 1, 66123, Saarbrücken, Germany.
Wulf BlankenfeldtStructure and Function of Proteins (SFPR), Helmholtz Centre for Infection Research (HZI), Inhoffenstr. 7, 38124, Braunschweig, Germany.
Martin EmptingDrug Design and Optimization (DDOP), Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS)-Helmholtz Centre for Infection Research (HZI), Campus E8.1, 66123, Saarbrücken, Germany.ORCID 0000-0002-0503-5830
Helmholtz Centre for Infection Research · DEUniversity of Bayreuth · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hit-to-lead optimization is a critical phase in drug discovery. Herein, we report on the fragment-based discovery and optimization of 2-aminopyridine derivatives as a novel lead-like structure for the treatment of the dangerous opportunistic pathogen Pseudomonas aeruginosa. We pursue an innovative treatment strategy by interfering with the Pseudomonas quinolone signal (PQS) quorum sensing (QS) system leading to an abolishment of bacterial pathogenicity. Our compounds act on the PQS receptor (PqsR), a key transcription factor controlling the expression of various pathogenicity determinants. In this target-driven approach, we made use of biophysical screening via surface plasmon resonance (SPR) followed by isothermal titration calorimetry (ITC)-enabled enthalpic efficiency (EE) evaluation. Hit optimization then involved growth vector identification and exploitation. Astonishingly, the latter was successfully achieved by introducing flexible linkers rather than rigid motifs leading to a boost in activity on the target receptor and anti-virulence potency.

Indexed as

AminopyridinesAnti-Bacterial AgentsDose-Response Relationship, DrugDrug DiscoveryMicrobial Sensitivity TestsMolecular StructurePseudomonas aeruginosaQuorum SensingStructure-Activity RelationshipVirulenceAminopyridinesAnti-Bacterial AgentsEnthalpic efficiencyFragment-based drug discoveryPathoblockerPseudomonas aeruginosaQuorum sensing

Identifiers

PMID31709767
PMCPMC7004148
OpenAlexW2986224571

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.