Evidence map›Paper›PMID 25069521›Full record

ArticleMolecular microbiology2014

Evaluation of the kinetics and mechanism of action of anti-integration host factor-mediated disruption of bacterial biofilms.

M Elizabeth Brockson, Laura A Novotny, Elaine M Mokrzan, Sankalp Malhotra, Joseph A Jurcisek, Rabia Akbar, Aishwarya Devaraj, Steven D Goodman, Lauren O Bakaletz

Open access · bronzeAbstract read
In one paragraph

Article in Molecular microbiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers.

0numbers the graph read from it
0cells of the map it votes in
60citing papers in PubMed
2.4field-weighted citation impact, top 11% 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

60 citing papers in PubMed, 81 citations in OpenAlex.

  1. Monoclonal Antibodies Targeting Bacterial Infections: A Broad Review of the Field.BioDrugs : clinical immunotherapeutics, biopharmaceuticals and gene therapy · 2026
    Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Beyond the double helix: the multifaceted landscape of extracellular DNA inFrontiers in cellular and infection microbiology · 2024
    Review
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Current treatments for biofilm-associated periprosthetic joint infection and new potential strategies.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2022
    Review
  15. Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. 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

9 authors at 2 institutions in 1 country.

M Elizabeth BrocksonCenter for Microbial Pathogenesis, The Research Institute at Nationwide Children's Hospital, 700 Children's Drive, Columbus, OH, 43205, USA; Department of Pediatrics, The Ohio State University College of Medicine, Columbus, OH, 43210, USA.
Laura A Novotny
Elaine M Mokrzan
Sankalp Malhotra
Joseph A Jurcisek
Rabia Akbar
Aishwarya Devaraj
Steven D Goodman
Lauren O Bakaletz
The Ohio State University · USNationwide Children's Hospital · US

Funding

Novel immunotherapeutics for the management of otitis media due to H. influenzaeR01DC011818 · NIDCD · RESEARCH INST NATIONWIDE CHILDREN'S HOSP · PI BAKALETZ, LAUREN O, GOODMAN, STEVEN D · 2011 to 2020
$5.4M
NIDCD NIH HHS R01 DC011818
6 · The paper itself

Abstract

The extracellular polymeric substance produced by many human pathogens during biofilm formation often contains extracellular DNA (eDNA). Strands of bacterial eDNA within the biofilm matrix can occur in a lattice-like network wherein a member of the DNABII family of DNA-binding proteins is positioned at the vertex of each crossed strand. To date, treatment of all biofilms tested with antibodies directed against one DNABII protein, Integration Host Factor (IHF), results in significant disruption. Here, using non-typeable Haemophilus influenzae as a model organism, we report that this effect was rapid, IHF-specific and mediated by binding of transiently dissociated IHF by anti-IHF even when physically separated from the biofilm by a nucleopore membrane. Further, biofilm disruption fostered killing of resident bacteria by previously ineffective antibiotics. We propose the mechanism of action to be the sequestration of IHF upon dissociation from the biofilm eDNA, forcing an equilibrium shift and ultimately, collapse of the biofilm. Further, antibodies against a peptide positioned at the DNA-binding tips of IHF were as effective as antibodies directed against the native protein. As incorporating eDNA and associated DNABII proteins is a common strategy for biofilms formed by multiple human pathogens, this novel therapeutic approach is likely to have broad utility.

Indexed as

Anti-Bacterial AgentsAntibodiesBiofilmsDNA, BacterialEpitope MappingHaemophilus influenzaeHost-Pathogen InteractionsHumansIntegration Host FactorsKineticsAnti-Bacterial AgentsAntibodiesDNA, BacterialIntegration Host Factors

Identifiers

PMID25069521
PMCPMC4160410
OpenAlexW1520229674

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.