Evidence map›Paper›PMID 21788384›Full record

ArticleInfection and immunity2011

Mutagenic analysis of the Clostridium difficile flagellar proteins, FliC and FliD, and their contribution to virulence in hamsters.

Tanis C Dingle, George L Mulvey, Glen D Armstrong

Open access · greenAbstract 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 82 papers.

0numbers the graph read from it
0cells of the map it votes in
82citing papers in PubMed
6.1field-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

82 citing papers in PubMed, 144 citations in OpenAlex.

  1. Review
  2. Article
  3. Do Human-InfectingPathogens (Basel, Switzerland) · 2026
    Article
  4. How flagellar glycosylation of the phytopathogenic bacteriumApplied and environmental microbiology · 2026
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  5. Dissecting the role of flagellar subunits inJournal of bacteriology · 2025
    Article
  6. Article
  7. Naringenin targets FimZ to regulate type I fimbriae and reduce the virulence ofFrontiers in cellular and infection microbiology · 2025
    Article
  8. Article
  9. Article
  10. Review
  11. International journal of molecular sciences · 2024
    Review
  12. Article
  13. Immunization Strategies Against Clostridioides difficile.Advances in experimental medicine and biology · 2024
    Review
  14. Article
  15. Biofilm Formation ofMicroorganisms · 2023
    Review
  16. Article
  17. Microbiology (Reading, England) · 2023
    Review
  18. Article
  19. Regulation of Clostridioides difficile toxin production.Current opinion in microbiology · 2022
    Review
  20. Article

22 more citing papers are in PubMed but not listed here.

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

3 authors at 1 institution in 1 country.

Tanis C DingleDepartment of Microbiology, Faculty of Medicine, University of Calgary, Calgary, AB, Canada.
George L Mulvey
Glen D Armstrong
University of Calgary · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although toxins A and B are known to be important contributors to the acute phase of Clostridium difficile infection, the role of colonization and adherence to host tissues in the overall pathogenesis of these organisms remains unclear. Consequently, we used the recently introduced intron-based ClosTron gene interruption system to eliminate the expression of two reported C. difficile colonization factors, the major flagellar structural subunit (FliC) and the flagellar cap protein (FliD), to gain greater insight into how flagella and motility contribute to C. difficile's pathogenic strategy. The results demonstrate that interrupting either the fliC or the fliD gene results in a complete loss of flagella, as well as motility, in C. difficile. However, both the fliC and fliD mutant strains adhered better than the wild-type 630Δerm strain to human intestine-derived Caco-2 cells, suggesting that flagella and motility do not contribute to, or may even interfere with, C. difficile adherence to epithelial cell surfaces in vitro. Moreover, we found that the mutant strains were more virulent in hamsters, indicating either that flagella are unnecessary for virulence or that repression of motility may be a pathogenic strategy employed by C. difficile in hamsters.

Indexed as

MutationAnimalsBacterial AdhesionBacterial ProteinsCaco-2 CellsClostridioides difficileClostridium InfectionsCricetinaeDisease Models, AnimalEpithelial CellsFlagellaHumansIntestinesVirulenceBacterial ProteinsFlaD protein, Bacteria

Identifiers

PMID21788384
PMCPMC3187235
OpenAlexW2138358104

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.