Evidence map›Paper›PMID 25225249›Full record

ArticleInfection and immunity2014

Role of Toll-like receptor 13 in innate immune recognition of group B streptococci.

Giacomo Signorino, Nastaran Mohammadi, Francesco Patanè, Marco Buscetta, Mario Venza, Isabella Venza, Giuseppe Mancuso, Angelina Midiri, Lena Alexopoulou, Giuseppe Teti and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in Infection and immunity, 2014. 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
4.5field-weighted citation impact, top 6% 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

25 citing papers in PubMed, 52 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Protein kinase D mediates inflammatory responses of human placental macrophages to Group B Streptococcus.American journal of reproductive immunology (New York, N.Y. : 1989) · 2019
    Article
  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

12 authors at 2 institutions in 2 countries.

Giacomo SignorinoDipartimento di Scienze Pediatriche, Ginecologiche, Microbiologiche e Biomediche, University of Messina, Messina, Italy.
Nastaran MohammadiDipartimento di Scienze Pediatriche, Ginecologiche, Microbiologiche e Biomediche, University of Messina, Messina, Italy.
Francesco PatanèDipartimento di Scienze Pediatriche, Ginecologiche, Microbiologiche e Biomediche, University of Messina, Messina, Italy.
Marco BuscettaDipartimento di Scienze Pediatriche, Ginecologiche, Microbiologiche e Biomediche, University of Messina, Messina, Italy.
Mario VenzaDipartimento di Scienze Sperimentali, Medico-Chirurgiche, Specialistiche e Odontostomatologiche, University of Messina, Messina, Italy.
Isabella VenzaDipartimento di Scienze Sperimentali, Medico-Chirurgiche, Specialistiche e Odontostomatologiche, University of Messina, Messina, Italy.
Giuseppe MancusoDipartimento di Scienze Pediatriche, Ginecologiche, Microbiologiche e Biomediche, University of Messina, Messina, Italy.
Angelina MidiriDipartimento di Scienze Pediatriche, Ginecologiche, Microbiologiche e Biomediche, University of Messina, Messina, Italy.
Lena AlexopoulouCentre d'Immunologie de Marseille-Luminy, Marseille, France.
Giuseppe TetiDipartimento di Scienze Pediatriche, Ginecologiche, Microbiologiche e Biomediche, University of Messina, Messina, Italy.
Carmelo BiondoDipartimento di Scienze Pediatriche, Ginecologiche, Microbiologiche e Biomediche, University of Messina, Messina, Italy cbiondo@unime.it.
Concetta BeninatiDipartimento di Scienze Pediatriche, Ginecologiche, Microbiologiche e Biomediche, University of Messina, Messina, Italy.
University of Messina · ITCentre d’Immunologie de Marseille-Luminy · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Murine Toll-like receptor 13 (TLR13), an endosomal receptor that is not present in humans, is activated by an unmethylated motif present in the large ribosomal subunit of bacterial RNA (23S rRNA). Little is known, however, of the impact of TLR13 on antibacterial host defenses. Here we examined the role of this receptor in the context of infection induced by the model pathogen group B streptococcus (GBS). To this end, we used bacterial strains masked from TLR13 recognition by virtue of constitutive expression of the ErmC methyltransferase, which results in dimethylation of the 23S rRNA motif at a critical adenine residue. We found that TLR13-mediated rRNA recognition was required for optimal induction of tumor necrosis factor alpha and nitrous oxide in dendritic cell and macrophage cultures stimulated with heat-killed bacteria or purified bacterial RNA. However, TLR13-dependent recognition was redundant when live bacteria were used as a stimulus. Moreover, masking bacterial rRNA from TLR13 recognition did not increase the ability of GBS to avoid host defenses and replicate in vivo. In contrast, increased susceptibility to infection was observed under conditions in which signaling by all endosomal TLRs was abolished, i.e., in mice with a loss-of-function mutation in the chaperone protein UNC93B1. Our data lend support to the conclusion that TLR13 participates in GBS recognition, although blockade of the function of this receptor can be compensated for by other endosomal TLRs. Lack of selective pressure by bacterial infections might explain the evolutionary loss of TLR13 in humans. However, further studies using different bacterial species are needed to prove this hypothesis.

Indexed as

Immunity, InnateAnimalsCells, CulturedCluster AnalysisDendritic CellsDNA, BacterialDNA, RibosomalMacrophagesMice, Inbred C57BLMolecular Sequence DataPhylogenyRNA, Ribosomal, 23SSequence Analysis, DNAStreptococcus agalactiaeToll-Like ReceptorsDNA, BacterialDNA, RibosomalRNA, Ribosomal, 23STlr13 protein, mouseToll-Like Receptors

Identifiers

PMID25225249
PMCPMC4249301
OpenAlexW2096801074

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.