Evidence map›Paper›PMID 28365981›Full record

ArticleBiomacromolecules2017

Evaluation of the Antimicrobial Activity of Cationic Polymers against Mycobacteria: Toward Antitubercular Macromolecules.

Daniel J Phillips, James Harrison, Sarah-Jane Richards, Daniel E Mitchell, Esther Tichauer, Alasdair T M Hubbard, Collette Guy, Ian Hands-Portman, Elizabeth Fullam, Matthew I Gibson

Open access · hybridAbstract read
In one paragraph

Article in Biomacromolecules, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
5.3field-weighted citation impact, top 3% 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

17 citing papers in PubMed, 83 citations in OpenAlex.

  1. Article
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  7. Article
  8. Article
  9. Anionic Synthetic Polymers Prevent Bacteriophage Infection.Journal of the American Chemical Society · 2023
    Article
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  11. Article
  12. Synthesis of FunctionalizedPharmaceuticals (Basel, Switzerland) · 2022
    Article
  13. Article
  14. Article
  15. Article
  16. Photochemical "In-Air" Combinatorial Discovery of Antimicrobial Co-polymers.Chemistry (Weinheim an der Bergstrasse, Germany) · 2018
    Article
  17. 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 1 institution in 1 country.

Daniel J PhillipsDepartment of Chemistry, ‡School of Life Sciences, and §Warwick Medical School, University of Warwick , Coventry, CV4 7AL, United Kingdom.
James HarrisonDepartment of Chemistry, ‡School of Life Sciences, and §Warwick Medical School, University of Warwick , Coventry, CV4 7AL, United Kingdom.
Sarah-Jane RichardsDepartment of Chemistry, ‡School of Life Sciences, and §Warwick Medical School, University of Warwick , Coventry, CV4 7AL, United Kingdom.
Daniel E MitchellDepartment of Chemistry, ‡School of Life Sciences, and §Warwick Medical School, University of Warwick , Coventry, CV4 7AL, United Kingdom.
Esther TichauerDepartment of Chemistry, ‡School of Life Sciences, and §Warwick Medical School, University of Warwick , Coventry, CV4 7AL, United Kingdom.
Alasdair T M HubbardDepartment of Chemistry, ‡School of Life Sciences, and §Warwick Medical School, University of Warwick , Coventry, CV4 7AL, United Kingdom.
Collette GuyDepartment of Chemistry, ‡School of Life Sciences, and §Warwick Medical School, University of Warwick , Coventry, CV4 7AL, United Kingdom.
Ian Hands-PortmanDepartment of Chemistry, ‡School of Life Sciences, and §Warwick Medical School, University of Warwick , Coventry, CV4 7AL, United Kingdom.
Elizabeth FullamDepartment of Chemistry, ‡School of Life Sciences, and §Warwick Medical School, University of Warwick , Coventry, CV4 7AL, United Kingdom.
Matthew I GibsonDepartment of Chemistry, ‡School of Life Sciences, and §Warwick Medical School, University of Warwick , Coventry, CV4 7AL, United Kingdom.ORCID http://orcid.org/0000-0002-8297-1278
University of Warwick · GB

Funding

European Research Council 638661Medical Research Council MR/N006917/1Wellcome Trust
6 · The paper itself

Abstract

Antimicrobial resistance is a global healthcare problem with a dwindling arsenal of usable drugs. Tuberculosis, caused by Mycobacterium tuberculosis, requires long-term combination therapy and multi- and totally drug resistant strains have emerged. This study reports the antibacterial activity of cationic polymers against mycobacteria, which are distinguished from other Gram-positive bacteria by their unique cell wall comprising a covalently linked mycolic acid-arabinogalactan-peptidoglycan complex (mAGP), interspersed with additional complex lipids which helps them persist in their host. The present study finds that poly(dimethylaminoethyl methacrylate) has particularly potent antimycobacterial activity and high selectivity over two Gram-negative strains. Removal of the backbone methyl group (poly(dimethylaminoethyl acrylate)) decreased antimycobacterial activity, and poly(aminoethyl methacrylate) also had no activity against mycobacteria. Hemolysis assays revealed poly(dimethylaminoethyl methacrylate) did not disrupt red blood cell membranes. Interestingly, poly(dimethylaminoethyl methacrylate) was not found to permeabilize mycobacterial membranes, as judged by dye exclusion assays, suggesting the mode of action is not simple membrane disruption, supported by electron microscopy analysis. These results demonstrate that synthetic polycations, with the correctly tuned structure are useful tools against mycobacterial infections, for which new drugs are urgently required.

Indexed as

Antitubercular AgentsCell MembraneErythrocytesHemolysisMethacrylatesMycobacteriumNylonsPolyaminesPolyelectrolytesAntitubercular AgentsMethacrylatesNylonspoly(2-(dimethylamino)ethyl methacrylate)PolyaminesPolyelectrolytes

Identifiers

PMID28365981
PMCPMC5435458
OpenAlexW2604188841

What OpenQuestion holds

Textmetadata
LicenceTDM
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.