Evidence map›Paper›PMID 33786713›Full record

ArticleAMB Express2021

The inhibitory effects of Staphylococcus aureus on the antibiotic susceptibility and virulence factors of Pseudomonas aeruginosa: A549 cell line model.

Sanaz Dehbashi, Mohammad Yousef Alikhani, Hamed Tahmasebi, Mohammad Reza Arabestani

Abstract read
In one paragraph

Article in AMB Express, 2021. 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
–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

9 citing papers in PubMed.

  1. Article
  2. The longitudinal expression ofMicrobiology (Reading, England) · 2026
    Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Performance of Graphene/Polydimethylsiloxane Surfaces againstNanomaterials (Basel, Switzerland) · 2022
    Article
  8. Sub-Inhibitory Antibiotic Exposure and Virulence inAntibiotics (Basel, Switzerland) · 2021
    Review
  9. 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.

Sanaz DehbashiDepartment of Microbiology, Faculty of Medicine, Hamadan University of Medical Sciences, Fahmideh avenue, Hamadan, Iran.ORCID http://orcid.org/0000-0002-6932-1633
Mohammad Yousef AlikhaniDepartment of Microbiology, Faculty of Medicine, Hamadan University of Medical Sciences, Fahmideh avenue, Hamadan, Iran.ORCID http://orcid.org/0000-0003-4577-4029
Hamed TahmasebiSchool of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran.ORCID http://orcid.org/0000-0002-9257-4479
Mohammad Reza ArabestaniDepartment of Microbiology, Faculty of Medicine, Hamadan University of Medical Sciences, Fahmideh avenue, Hamadan, Iran. mohammad.arabestani@gmail.com.

Funding

The Vice Chancellor for research and technology, Hamadan/Iran 9610266855
6 · The paper itself

Abstract

Pseudomonas aeruginosa and Staphylococcus aureus often lead to serious lung infections. This study aimed to investigate the role of S. aureus in the expression of the β-lactamase enzymes and virulence factors of P. aeruginosa in the polymicrobial infections of the respiratory tract. Biofilm and planktonic co-culture of P. aeruginosa and S. aureus were performed in the A549 cell line. Then, antibiotic resistance and virulence factors of P. aeruginosa were examined, and the expression of lasR, lasI, algD, mexR, and KPC genes were determined using qPCR. S.aureus decreased β-lactam resistance but increased resistance to tobramycin in the biofilm condition. Furthermore, S.aureus showed a positive effect on reducing resistance to meropenem, doripenem, and tobramycin (except PA-2). Altough it was demonstrated that S.aureus reduced the viability of P. aeruginosa, particularly in the biofilm state, the pathogenicity of the recovered strains of P.aeruginosa increased. Moreover, the gene expression levels for lasR/I and algD were increased in biofilm conditions. The levels of lasI were more prominent in the virulent strain than the β-lactamase producing strain. Furthermore, the expression of KPC was increased in all strains of P. aeruginosa. According to the findings of this study, S. aureus has an inhibitory effect in polymicrobial infections by suppressing the β-lactamase genes and viability of P. aeruginosa. Also, it cooperates with the biofilm-producing P. aeruginosa strains to increase pathogenicity and resistance to tobramycin.

Indexed as

Polymicrobial infectionsPseudomonas aeruginosaResistanceRespiratory TractStaphylococcus aureusVirulence

Identifiers

PMID33786713
PMCPMC8010066

What OpenQuestion holds

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LicenceCC BY
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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.