Evidence map›Paper›PMID 21730086›Full record

ArticleInfection and immunity2011

Laboratory adaptation of Bordetella pertussis is associated with the loss of type three secretion system functionality.

M E Gaillard, D Bottero, C E Castuma, L A Basile, D Hozbor

Abstract read
In one paragraph

Article in Infection and immunity, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
–field-weighted citation impact
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

25 citing papers in PubMed.

  1. Article
  2. Article
  3. mSystems · 2025
    Article
  4. Article
  5. Article
  6. Review
  7. Omics Analysis of Blood-Responsive Regulon inInternational journal of molecular sciences · 2021
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Frontiers in cellular and infection microbiology · 2020
    Review
  13. Review
  14. Comparative Integrated Omics Analysis of the Hfq Regulon inInternational journal of molecular sciences · 2019
    Article
  15. Article
  16. Review
  17. Article
  18. Article
  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

5 authors.

M E GaillardInstituto de Biotecnología y Biología Molecular, Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CCT La Plata CONICET, Calle 47 y 115, La Plata 1900, Argentina.
D Bottero
C E Castuma
L A Basile
D Hozbor

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although Bordetella pertussis contains and transcribes loci encoding type III secretion system (TTSS) homologues, expression of TTSS-associated proteins has been reported only for non-laboratory-adapted Irish clinical isolates. Here we confirm such a result for clinical isolates obtained from patients treated in Argentinean hospitals. Moreover, we demonstrate that the expression of TTSS-associated proteins is independent both of the year in which the isolate was obtained and of the types of polymorphic alleles for other virulence factors but is dependent on environmental growth conditions. Interestingly, we observed that TTSS-associated protein expression is lost after successive in vitro passages but becomes operative again when bacteria come into contact with the host. This in vivo activation of TTSS expression was observed not only for clinical isolates previously adapted to the laboratory after successive in vitro passages but also for vaccine strains that did not express the system in vitro. The reversibility of TTSS expression, demonstrated by its switching off-on when the bacterium comes into contact with the host, appears to be an adaptive response of this pathogen.

Indexed as

AllelesAnimalsBacterial ProteinsBacterial Secretion SystemsBordetella pertussisEnvironmentGene Expression Regulation, BacterialHost-Pathogen InteractionsImmunoblottingMiceMice, Inbred BALB CPolymerase Chain ReactionPolymorphism, GeneticVirulence FactorsWhooping CoughBacterial ProteinsBacterial Secretion SystemsVirulence Factors

Identifiers

PMID21730086
PMCPMC3165473

What OpenQuestion holds

Textmetadata
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.