Evidence map›Paper›PMID 37156803›Full record

ArticleScientific reports2023

Antibacterial activity of vB_AbaM_PhT2 phage hydrophobic amino acid fusion endolysin, combined with colistin against Acinetobacter baumannii.

Sutthirat Sitthisak, Suphattra Manrueang, Supat Khongfak, Udomluk Leungtongkam, Rapee Thummeepak, Aunchalee Thanwisai, Nathan Burton, Gurneet K Dhanoa, Panagiotis Tsapras, Antonia P Sagona

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
5.7field-weighted citation impact, top 4% 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

20 citing papers in PubMed, 23 citations in OpenAlex.

  1. Article
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  13. Comprehensive Approaches to CombattingAntibiotics (Basel, Switzerland) · 2024
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  15. Lytic Capsule-SpecificViruses · 2024
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  16. Article
  17. Engineered endolysin ofFrontiers in microbiology · 2024
    Article
  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

10 authors at 2 institutions in 2 countries.

Sutthirat SitthisakDepartment of Microbiology and Parasitology, Faculty of Medical Science, Naresuan University, Muang, Phitsanulok, 65000, Thailand. sutthirats@nu.ac.th.ORCID 0000-0003-4992-7635
Suphattra ManrueangDepartment of Microbiology and Parasitology, Faculty of Medical Science, Naresuan University, Muang, Phitsanulok, 65000, Thailand.
Supat KhongfakDepartment of Microbiology and Parasitology, Faculty of Medical Science, Naresuan University, Muang, Phitsanulok, 65000, Thailand.
Udomluk LeungtongkamDepartment of Microbiology and Parasitology, Faculty of Medical Science, Naresuan University, Muang, Phitsanulok, 65000, Thailand.
Rapee ThummeepakDepartment of Microbiology and Parasitology, Faculty of Medical Science, Naresuan University, Muang, Phitsanulok, 65000, Thailand.
Aunchalee ThanwisaiDepartment of Microbiology and Parasitology, Faculty of Medical Science, Naresuan University, Muang, Phitsanulok, 65000, Thailand.
Nathan BurtonSchool of Life Sciences, University of Warwick, Coventry, CV4 7AL, UK.
Gurneet K DhanoaSchool of Life Sciences, University of Warwick, Coventry, CV4 7AL, UK.
Panagiotis TsaprasSchool of Life Sciences, University of Warwick, Coventry, CV4 7AL, UK.
Antonia P SagonaSchool of Life Sciences, University of Warwick, Coventry, CV4 7AL, UK. A.Sagona@warwick.ac.uk.ORCID 0000-0002-0386-2322
Naresuan University · THUniversity of Warwick · GB

Funding

Biotechnology and Biological Sciences Research Council BB/M01116X/1
6 · The paper itself

Abstract

Phage lytic enzymes are promising antimicrobial agents. In this study, an endolysin derived from vB_AbaM_PhT2 (vPhT2), was identified. This endolysin represented the conserved lysozyme domain. Recombinant endolysin (lysAB- vT2) and hydrophobic fusion endolysin (lysAB-vT2-fusion) were expressed and purified. Both endolysins showed lytic activity against bacterial crude cell wall of Gram-negative bacteria. The MIC of lysAB-vT2-fusion was 2 mg/ml corresponding to 100 µM, while the MIC of lysAB-vT2 was more than 10 mg/ml (400 µM). Combination of lysAB-vT2-fusion with colistin, polymyxin B or copper was synergistic against A. baumannii (FICI value as 0.25). Antibacterial activity of lysAB-vT2-fusion plus colistin at the fractional inhibitory concentrations (FICs) revealed that it can inhibit Escherichia coli, Klebsiella pneumoniae and various strains of extremely drug-resistant A. baumannii (XDRAB) and phage resistant A. baumannii. The lysAB- vT2-fusion still retained its antibacterial activity after incubating the enzyme at 4, 20, 40 and 60 °C for 30 min. The lysAB-vT2-fusion could inhibit the mature biofilm, and incubation of lysAB-vT2-fusion with T24 human cells infected with A. baumannii led to a partial reduction of LDH release from T24 cells. In summary, our study highlights the antimicrobial ability of engineered lysAB-vT2-fusion endolysin, which can be applied for the control of A. baumannii infection.

Indexed as

Acinetobacter baumanniiAnti-Infective AgentsBacteriophagesAmino AcidsAnti-Bacterial AgentsColistinEndopeptidasesHumansAmino AcidsAnti-Bacterial AgentsAnti-Infective AgentsColistinendolysinEndopeptidases

Identifiers

PMID37156803
PMCPMC10167329
OpenAlexW4375858414

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.