Evidence map›Paper›PMID 35165270›Full record

ArticleNPJ biofilms and microbiomes2022

Evolution of biofilm-adapted gene expression profiles in lasR-deficient clinical Pseudomonas aeruginosa isolates.

Alexander Jeske, Alejandro Arce-Rodriguez, Janne G Thöming, Jürgen Tomasch, Susanne Häussler

Abstract read
In one paragraph

Article in NPJ biofilms and microbiomes, 2022. 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
–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

22 citing papers in PubMed.

  1. Article
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  3. Beyond Resistance Genes:Life (Basel, Switzerland) · 2026
    Review
  4. ClpP2 modulates ClpXP assembly to promote multiple pathogenic phenotypes inProceedings of the National Academy of Sciences of the United States of America · 2026
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  5. Multidrug-resistantVirulence · 2025
    Review
  6. Article
  7. Anti-QS Strategies AgainstMicroorganisms · 2025
    Review
  8. Evolution of Resistant Mutants inMicroorganisms · 2025
    Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Unravelling the mechanisms causing murepavadin resistance inFrontiers in cellular and infection microbiology · 2024
    Article
  15. Review
  16. Review
  17. Review
  18. Review
  19. Article
  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

5 authors.

Alexander JeskeDepartment of Molecular Bacteriology, Helmholtz Centre for Infection Research, 38124, Braunschweig, Germany.
Alejandro Arce-RodriguezDepartment of Molecular Bacteriology, Helmholtz Centre for Infection Research, 38124, Braunschweig, Germany.
Janne G ThömingInstitute for Molecular Bacteriology, TWINCORE, Centre for Experimental and Clinical Infection Research, 30265, Hannover, Germany.ORCID http://orcid.org/0000-0002-4415-105X
Jürgen TomaschDepartment of Molecular Bacteriology, Helmholtz Centre for Infection Research, 38124, Braunschweig, Germany.ORCID http://orcid.org/0000-0002-3914-2781
Susanne HäusslerDepartment of Molecular Bacteriology, Helmholtz Centre for Infection Research, 38124, Braunschweig, Germany. Susanne.haeussler@helmholtz-hzi.de.ORCID http://orcid.org/0000-0001-6141-9102

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The overall success of a pathogenic microbe depends on its ability to efficiently adapt to challenging conditions in the human host. Long-term evolution experiments track and predict adaptive trajectories and have contributed significantly to our understanding of the driving forces of bacterial adaptation. In this study, we conducted a cross-sectional study instead of long-term longitudinal evolution experiments. We analyzed the transcriptional profiles as well as genomic sequence variations of a large number of clinical Pseudomonas aeruginosa isolates that have been recovered from different infected human sites. Convergent changes in gene expression patterns were found in different groups of clinical isolates. The majority of repeatedly observed expression patterns could be attributed to a defective lasR gene, which encodes the major quorum-sensing regulator LasR. Strikingly, the gene expression pattern of the lasR-defective strains appeared to reflect a transcriptional response that evolves in a direction consistent with growth within a biofilm. In a process of genetic assimilation, lasR-deficient P. aeruginosa isolates appear to constitutively express a biofilm-adapted transcriptional profile and no longer require a respective environmental trigger. Our results demonstrate that profiling the functional consequences of pathoadaptive mutations in clinical isolates reveals long-term evolutionary pathways and may explain the success of lasR mutants in the opportunistic pathogen P. aeruginosa in a clinical context.

Indexed as

Pseudomonas aeruginosaTranscriptomeBacterial ProteinsBiofilmsCross-Sectional StudiesHumansTrans-ActivatorsBacterial ProteinsTrans-Activators

Identifiers

PMID35165270
PMCPMC8844440

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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.