Evidence map›Paper›PMID 32523130›Full record

ArticleScientific reports2020

Characterization of different alginate lyases for dissolving Pseudomonas aeruginosa biofilms.

Núria Blanco-Cabra, Bernhard Paetzold, Tony Ferrar, Rocco Mazzolini, Eduard Torrents, Luis Serrano, Maria LLuch-Senar

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing 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

40 citing papers in PubMed, 101 citations in OpenAlex.

  1. Inhibition and disruption of bacterial biofilms by a bipyridine-ruthenium complex: a broad-spectrum in vitro study.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2026
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  2. Article
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  7. Article
  8. Review
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  10. Biofilm · 2025
    Article
  11. Applying a polysaccharide lyase fromApplied and environmental microbiology · 2025
    Article
  12. Review
  13. Review
  14. Article
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  16. Review
  17. Article
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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

7 authors at 3 institutions in 1 country.

Núria Blanco-Cabra *Bacterial infections and antimicrobial therapies, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain.
Bernhard Paetzold *S-Biomedic N.V. Turnhoutsweg 30 2340, Beerse, Belgium.
Tony FerrarEMBL/CRG Systems Biology Research Unit, Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Dr Aiguader 88, Barcelona, 08003, Spain.
Rocco MazzoliniEMBL/CRG Systems Biology Research Unit, Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Dr Aiguader 88, Barcelona, 08003, Spain.
Eduard TorrentsBacterial infections and antimicrobial therapies, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain.ORCID http://orcid.org/0000-0002-3010-1609
Luis SerranoEMBL/CRG Systems Biology Research Unit, Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Dr Aiguader 88, Barcelona, 08003, Spain. luis.serrano@crg.eu.
Maria LLuch-SenarEMBL/CRG Systems Biology Research Unit, Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Dr Aiguader 88, Barcelona, 08003, Spain. maria.lluch@crg.eu.ORCID http://orcid.org/0000-0001-7568-4353
Centre for Genomic Regulation · ESInstitute for Bioengineering of Catalonia · ESInstitució Catalana de Recerca i Estudis Avançats · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Aggregates of Pseudomonas aeruginosa form a protective barrier against antibiotics and the immune system. These barriers, known as biofilms, are associated with several infectious diseases. One of the main components of these biofilms is alginate, a homo- and hetero-polysaccharide that consists of β-D-mannuronate (M) and α-L-guluronate (G) units. Alginate lyases degrade this sugar and have been proposed as biotherapeutic agents to dissolve P. aeruginosa biofilms. However, there are contradictory reports in the literature regarding the efficacy of alginate lyases against biofilms and their synergistic effect with antibiotics. We found that most positive reports used a commercial crude extract from Flavobacterium multivorum as the alginate lyase source. By using anion exchange chromatography coupled to nano LC MS/MS, we identified two distinct enzymes in this extract, one has both polyM and polyG (polyM/G) degradation activities and it is similar in sequence to a broad-spectrum alginate lyase from Flavobacterium sp. S20 (Alg2A). The other enzyme has only polyG activity and it is similar in sequence to AlyA1 from Zobellia galactanivorans. By characterizing both of these enzymes together with three recombinant alginate lyases (a polyM, a polyG and a polyM/G), we showed that only enzymes with polyM/G activity such as Alg2A and A1-II' (alginate lyase from Sphingomonas sp.) are effective in dissolving biofilms. Furthermore, both activities are required to have a synergistic effect with antibiotics.

Indexed as

AlginatesAnti-Bacterial AgentsBacterial ProteinsBiofilmsBiological TherapyCloning, MolecularComplex MixturesDrug SynergismHumansLyasesPseudomonas aeruginosaPseudomonas InfectionsSphingobacteriumSubstrate SpecificityTandem Mass SpectrometryAlginatesAnti-Bacterial AgentsBacterial ProteinsComplex MixturesLyases

Identifiers

PMID32523130
PMCPMC7287115
OpenAlexW3033150431

What OpenQuestion holds

Textmetadata
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.