Evidence map›Paper›PMID 24982306›Full record

ArticleJournal of bacteriology2014

Pleiotropic role of the RNA chaperone protein Hfq in the human pathogen Clostridium difficile.

P Boudry, C Gracia, M Monot, J Caillet, L Saujet, E Hajnsdorf, B Dupuy, I Martin-Verstraete, O Soutourina

Open access · bronzeAbstract read
In one paragraph

Article in Journal of bacteriology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed
4.5field-weighted citation impact, top 5% 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

46 citing papers in PubMed, 76 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Article
  5. Clostridioides difficile Biofilm.Advances in experimental medicine and biology · 2024
    Article
  6. Small proteins in Gram-positive bacteria.FEMS microbiology reviews · 2023
    Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Wolf in Sheep's Clothing:Microorganisms · 2021
    Review
  14. An RNA-centric global view ofProceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
  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

9 authors at 5 institutions in 1 country.

P BoudryLaboratoire Pathogenèse des Bactéries Anaérobies, Institut Pasteur, Paris, France Université Paris Diderot, Sorbonne Paris Cité, Cellule Pasteur, Paris, France.
C GraciaCNRS FRE3630-Université Paris Diderot, Sorbonne Paris Cité, Institut de Biologie Physico-Chimique, Paris, France.
M MonotLaboratoire Pathogenèse des Bactéries Anaérobies, Institut Pasteur, Paris, France.
J CailletCNRS FRE3630-Université Paris Diderot, Sorbonne Paris Cité, Institut de Biologie Physico-Chimique, Paris, France.
L SaujetLaboratoire Pathogenèse des Bactéries Anaérobies, Institut Pasteur, Paris, France Université Paris Diderot, Sorbonne Paris Cité, Cellule Pasteur, Paris, France.
E HajnsdorfCNRS FRE3630-Université Paris Diderot, Sorbonne Paris Cité, Institut de Biologie Physico-Chimique, Paris, France.
B DupuyLaboratoire Pathogenèse des Bactéries Anaérobies, Institut Pasteur, Paris, France.
I Martin-VerstraeteLaboratoire Pathogenèse des Bactéries Anaérobies, Institut Pasteur, Paris, France Université Paris Diderot, Sorbonne Paris Cité, Cellule Pasteur, Paris, France.
O SoutourinaLaboratoire Pathogenèse des Bactéries Anaérobies, Institut Pasteur, Paris, France Université Paris Diderot, Sorbonne Paris Cité, Cellule Pasteur, Paris, France olga.soutourina@pasteur.fr.
Institut Pasteur · FRDélégation Paris 7 · FRUniversité Paris Cité · FRInstitut de Biologie Physico-Chimique · FRSorbonne Paris Cité · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Clostridium difficile is an emergent human pathogen and the most common cause of nosocomial diarrhea. Our recent data strongly suggest the importance of RNA-based mechanisms for the control of gene expression in C. difficile. In an effort to understand the function of the RNA chaperone protein Hfq, we constructed and characterized an Hfq-depleted strain in C. difficile. Hfq depletion led to a growth defect, morphological changes, an increased sensitivity to stresses, and a better ability to sporulate and to form biofilms. The transcriptome analysis revealed pleiotropic effects of Hfq depletion on gene expression in C. difficile, including genes encoding proteins involved in sporulation, stress response, metabolic pathways, cell wall-associated proteins, transporters, and transcriptional regulators and genes of unknown function. Remarkably, a great number of genes of the regulon dependent on sporulation-specific sigma factor, SigK, were upregulated in the Hfq-depleted strain. The altered accumulation of several sRNAs and interaction of Hfq with selected sRNAs suggest potential involvement of Hfq in these regulatory RNA functions. Altogether, these results suggest the pleiotropic role of Hfq protein in C. difficile physiology, including processes important for the C. difficile infection cycle, and expand our knowledge of Hfq-dependent regulation in Gram-positive bacteria.

Indexed as

Genetic PleiotropyClostridioides difficileGene Expression Regulation, BacterialGene Knockdown TechniquesHumansMolecular ChaperonesMutationRNA, AntisenseRNA, BacterialRNA-Binding ProteinsSignal TransductionSpores, BacterialStress, PhysiologicalMolecular ChaperonesRNA, AntisenseRNA, BacterialRNA-Binding Proteins

Identifiers

PMID24982306
PMCPMC4135688
OpenAlexW2132865517

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.