Evidence map›Paper›PMID 31712724›Full record

ArticleScientific reports2019

Pseudomonas aeruginosa quorum sensing inhibition by clinical isolate Delftia tsuruhatensis 11304: involvement of N-octadecanoylhomoserine lactones.

Milka Malešević, Flaviana Di Lorenzo, Brankica Filipić, Nemanja Stanisavljević, Katarina Novović, Lidija Senerovic, Natalija Polović, Antonio Molinaro, Milan Kojić, Branko Jovčić

Abstract read
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
–field-weighted citation impact
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

24 citing papers in PubMed.

  1. Targeting biofilm and virulence inMicrobiology spectrum · 2026
    Article
  2. Article
  3. Anti-QS Strategies AgainstMicroorganisms · 2025
    Review
  4. Article
  5. Review
  6. Biofilm · 2024
    Article
  7. Theophylline as a quorum sensing and biofilm inhibitor in Pseudomonas aeruginosa and Chromobacterium violaceum.International microbiology : the official journal of the Spanish Society for Microbiology · 2024
    Article
  8. Article
  9. Evaluation of novel compounds as anti-bacterial or anti-virulence agents.Frontiers in cellular and infection microbiology · 2024
    Review
  10. Heliyon · 2023
    Article
  11. Article
  12. Genomic analysis of multidrug-resistantFrontiers in microbiology · 2023
    Article
  13. A Brominated Furanone InhibitsBiomedicines · 2022
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Frontiers in microbiology · 2022
    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

10 authors.

Milka MaleševićInstitute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, 11010, Serbia.
Flaviana Di LorenzoUniversity of Napoli Federico II, Department of Chemical Sciences, Napoli, 80126, Italy.
Brankica FilipićInstitute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, 11010, Serbia.
Nemanja StanisavljevićInstitute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, 11010, Serbia.
Katarina NovovićInstitute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, 11010, Serbia.
Lidija SenerovicInstitute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, 11010, Serbia.
Natalija PolovićFaculty of Chemistry, University of Belgrade, Belgrade, 11000, Serbia.
Antonio MolinaroUniversity of Napoli Federico II, Department of Chemical Sciences, Napoli, 80126, Italy.
Milan KojićInstitute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, 11010, Serbia.ORCID http://orcid.org/0000-0001-5645-750X
Branko JovčićInstitute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, 11010, Serbia. bjovcic@bio.bg.ac.rs.ORCID http://orcid.org/0000-0002-9500-3786

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Pseudomonas aeruginosa is one of the most common opportunistic pathogens that use quorum sensing (QS) system to regulate virulence factors expression and biofilm development. Delftia sp. 11304 was selected among 663 Gram-negative clinical isolates based on its QS inhibitory activity against P. aeruginosa MMA83 clinical isolate. Whole genome sequencing identified this isolate as D. tsuruhatensis and revealed genetic armamentarium of virulence factors and antibiotic resistance determinants. Ethyl acetate extract of D. tsuruhatensis 11304 culture supernatant (QSI extract) prevented biofilm formation of P. aeruginosa MMA83, but was unable to cause biofilm decomposition. QSI extract showed a synergistic effect in combination with meropenem and gentamycin, against P. aeruginosa MMA83. A dose-dependent reduction of the virulence factors: elastase, rhamnolipid and pyocyanin production by P. aeruginosa MMA83 and significant downregulation of lasI, lasR, rhlI, rhlR, pqs and mvfR expression were observed. Matrix-assisted Laser Desorption Ionization (MALDI) mass spectrometry of D. tsuruhatensis 11304 QSI extract revealed the presence of N-acyl homoserine lactones (AHL) with chain lengths of C12 to C18. The main ion peak was identified as N-octadecanoylhomoserine lactone (C

Indexed as

Quorum SensingAcyl-ButyrolactonesAnti-Bacterial AgentsBacterial ProteinsBiofilmsDelftiaHumansPseudomonas aeruginosaVirulence FactorsWhole Genome SequencingAcyl-ButyrolactonesAnti-Bacterial AgentsBacterial ProteinsVirulence Factors

Identifiers

PMID31712724
PMCPMC6848482

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Registered trials

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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.