Evidence map›Paper›PMID 31530875›Full record

ArticleScientific reports2019

Identification and characterization of phage protein and its activity against two strains of multidrug-resistant Pseudomonas aeruginosa.

Fairoz Al-Wrafy, Ewa Brzozowska, Sabina Górska, Marek Drab, Magdalena Strus, Andrzej Gamian

Open access · goldAbstract 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 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
2.1field-weighted citation impact, top 13% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 26 citations in OpenAlex.

  1. Pooled it
  2. Lytic activity of F8-like phage φSPM-1 against One Health lineages of carbapenem-resistant Pseudomonas aeruginosa.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2026
    Article
  3. Review
  4. Article
  5. Article
  6. OvercomingAntibiotics (Basel, Switzerland) · 2025
    Review
  7. Article
  8. Article
  9. Chemical-Biology and Metabolomics Studies in Phage-Host Interactions.Advances in experimental medicine and biology · 2023
    Article
  10. Review
  11. Review
  12. Article
  13. Review
  14. 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

6 authors at 3 institutions in 2 countries.

Fairoz Al-WrafyDepartment of Applied Microbiology, Faculty of Applied Sciences, Taiz University, 6350, Taiz, Yemen. f_alwrafy@yahoo.com.ORCID http://orcid.org/0000-0002-2820-801X
Ewa BrzozowskaHirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114, Wrocław, Poland. ewa.brzozowska@hirszfeld.pl.ORCID http://orcid.org/0000-0003-0922-3625
Sabina GórskaHirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114, Wrocław, Poland.ORCID http://orcid.org/0000-0002-3206-0695
Marek DrabHirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114, Wrocław, Poland.
Magdalena StrusDepartment of Microbiology, Medical College, Jagiellonian University, 31-007, Krakow, Poland.
Andrzej GamianHirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114, Wrocław, Poland.
Ludwik Hirszfeld Institute of Immunology and Experimental Therapy · PLJagiellonian University · PLTaiz University · YE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Pseudomonas aeruginosa is an opportunistic pathogen with a capacity to develop antibiotic resistance, which underlies a larger proportion of hospital-acquired infections and higher morbidity and mortality, compared to other bacterial infections. Effective novel approaches for treatment of infections induced by this pathogen are therefore necessary. Phage therapy represents a promising alternative solution to eradicate antibiotic-resistant pathogens. Here, we investigated phage protein efficacy against multi-drug resistant (MDR) P. aeruginosa PAR21 and PAR50 strains isolated from diabetic foot ulcer patients. The results obtained using spot assay, zymography, spectrophotometry and scanning electron microscopy at low voltage (SEM-LV) indicate that the phage protein, PA-PP, exerts activity against P. aeruginosa PAR50 while having no impact on the PAR21 strain. Using LC-MS-MS/MS and comparative analysis of the peptide molecular mass with the protein sequence database, PA-PP was identified as a member of the serine protease family, a result corroborated by its ability to digest casein. We additionally showed a capacity of PA-PP to digest porin protein on the bacterial outer membrane (OM). Moreover, synergistic activity between PA-PP protein and piperacillin led to higher sensitivity of bacterial cells to this antibiotic. Our collective findings suggest that PA-PP targets porin protein on PAR50 OM, thereby increasing its sensitivity to specific antibiotics. The adverse effects observed on bacterial cells using SEM-LV suggest further roles of this protein that remain to be established.

Indexed as

Drug Resistance, Multiple, BacterialAnti-Bacterial AgentsBacteriophagesEnzyme ActivationHumansPseudomonas aeruginosaRecombinant ProteinsSpectrum AnalysisViral ProteinsAnti-Bacterial AgentsRecombinant ProteinsViral Proteins

Identifiers

PMID31530875
PMCPMC6748951
OpenAlexW2973920771

What OpenQuestion holds

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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.