Evidence map›Paper›PMID 27731909›Full record

ArticleMolecular microbiology2017

Bordetella adenylate cyclase toxin interacts with filamentous haemagglutinin to inhibit biofilm formation in vitro.

Casandra Hoffman, Joshua Eby, Mary Gray, F Heath Damron, Jeffrey Melvin, Peggy Cotter, Erik Hewlett

Abstract read
In one paragraph

Article in Molecular microbiology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
3.1field-weighted citation impact, top 9% 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

21 citing papers in PubMed, 29 citations in OpenAlex.

  1. A multi-epitope vaccine targetingFrontiers in immunology · 2026
    Article
  2. Article
  3. Article
  4. mBio · 2024
    Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Highlights of the 12th International Bordetella Symposium.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2020
    Article
  10. DisruptingMicroorganisms · 2020
    Article
  11. Article
  12. Article
  13. Microbiology spectrum · 2019
    Review
  14. Review
  15. Review
  16. Article
  17. Article
  18. Review
  19. Review
  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

7 authors at 3 institutions in 1 country.

Casandra HoffmanDivision of Infectious Diseases and International Health, Department of Medicine, University of Virginia, Charlottesville, VA, USA.
Joshua EbyDivision of Infectious Diseases and International Health, Department of Medicine, University of Virginia, Charlottesville, VA, USA.
Mary GrayDivision of Infectious Diseases and International Health, Department of Medicine, University of Virginia, Charlottesville, VA, USA.
F Heath DamronDepartment of Microbiology, Immunology and Cell Biology, School of Medicine, West Virginia University, Morgantown, WV, USA.
Jeffrey MelvinSchool of Medicine, University of North Carolina, Chapel Hill, NC, USA.
Peggy CotterSchool of Medicine, University of North Carolina, Chapel Hill, NC, USA.ORCID 0000-0003-3726-3990
Erik HewlettDivision of Infectious Diseases and International Health, Department of Medicine, University of Virginia, Charlottesville, VA, USA.
University of Virginia · USUniversity of North Carolina at Chapel Hill · USWest Virginia University · US

Funding

INFECTIOUS DISEASES TRAINING PROGRAMT32AI007046 · NIAID · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI Alison K Criss, William A Petri · 1985 to 2026
$15.3M
Bordetella cyclase toxin: effects on leukocytes and respiratory epithelial cellsR01AI018000 · NIAID · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI HEWLETT, ERIK L · 1985 to 2015
$5.6M
Function and Secretion of Bordetella Filamentous HemagglutininR01AI094991 · NIAID · UNIV OF NORTH CAROLINA CHAPEL HILL · PI COTTER, PEGGY A · 2012 to 2016
$2.0M
NIAID NIH HHS R01 AI018000NIAID NIH HHS R01 AI094991NIAID NIH HHS T32 AI007046
6 · The paper itself

Abstract

Bordetella pertussis, the causative agent of whooping cough, secretes and releases adenylate cyclase toxin (ACT), which is a protein bacterial toxin that targets host cells and disarms immune defenses. ACT binds filamentous haemagglutinin (FHA), a surface-displayed adhesin, and until now, the consequences of this interaction were unknown. A B. bronchiseptica mutant lacking ACT produced more biofilm than the parental strain; leading Irie et al. to propose the ACT-FHA interaction could be responsible for biofilm inhibition. Here we characterize the physical interaction of ACT with FHA and provide evidence linking that interaction to inhibition of biofilm in vitro. Exogenous ACT inhibits biofilm formation in a concentration-dependent manner and the N-terminal catalytic domain of ACT (AC domain) is necessary and sufficient for this inhibitory effect. AC Domain interacts with the C-terminal segment of FHA with ∼650 nM affinity. ACT does not inhibit biofilm formation by Bordetella lacking the mature C-terminal domain (MCD), suggesting the direct interaction between AC domain and the MCD is required for the inhibitory effect. Additionally, AC domain disrupts preformed biofilm on abiotic surfaces. The demonstrated inhibition of biofilm formation by a host-directed protein bacterial toxin represents a novel regulatory mechanism and identifies an unprecedented role for ACT.

Indexed as

Adenylate Cyclase ToxinAdhesins, BacterialBiofilmsBordetella bronchisepticaBordetella pertussisHemagglutininsVirulence Factors, BordetellaAdenylate Cyclase ToxinAdhesins, Bacterialfilamentous hemagglutinin adhesin, Bordetella pertussisHemagglutininsVirulence Factors, Bordetella

Identifiers

PMID27731909
PMCPMC5218874
OpenAlexW2531905949

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.