Evidence map›Paper›PMID 16926393›Full record

ArticleInfection and immunity2006

Porphyromonas gingivalis vesicles enhance attachment, and the leucine-rich repeat BspA protein is required for invasion of epithelial cells by "Tannerella forsythia".

Satoru Inagaki, Shinsuke Onishi, Howard K Kuramitsu, Ashu Sharma

Abstract read
In one paragraph

Article in Infection and immunity, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 86 papers.

0numbers the graph read from it
0cells of the map it votes in
86citing papers in PubMed
4.2field-weighted citation impact, top 7% 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

86 citing papers in PubMed, 164 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Article
  4. Article
  5. Frontiers in immunology · 2026
    Article
  6. Transcription regulator TrtA modulates oxygen stress response inApplied and environmental microbiology · 2025
    Article
  7. Review
  8. Review
  9. Review
  10. Outer membrane vesicles ofFrontiers in microbiology · 2025
    Review
  11. Review
  12. Oral Pathobiont-Derived Outer Membrane Vesicles in the Oral-Gut Axis.International journal of molecular sciences · 2024
    Review
  13. Article
  14. Review
  15. The intriguing strategies ofFrontiers in oral health · 2024
    Article
  16. Review
  17. Review
  18. Review
  19. Extracellular Vesicles ofAntibiotics (Basel, Switzerland) · 2023
    Review
  20. Review

26 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

4 authors at 1 institution in 1 country.

Satoru InagakiDepartment of Oral Biology, School of Dental Medicine, 211 Foster Hall, University at Buffalo, State University of New York, Buffalo, NY 14214, USA.
Shinsuke Onishi
Howard K Kuramitsu
Ashu Sharma
University at Buffalo, State University of New York · US

Funding

T. forsythia TLR2 ligands and surface glycans coordinate periodontal inflammationR01DE014749 · NIDCR · STATE UNIVERSITY OF NEW YORK AT BUFFALO · PI SHARMA, ASHU · 2003 to 2018
$4.9M
NIDCR NIH HHS DE 014749NIDCR NIH HHS R01 DE014749
6 · The paper itself

Abstract

The human oral cavity harbors more than 500 species of bacteria. Periodontitis, a bacterially induced inflammatory disease that leads to tooth loss, is believed to result from infection by a select group of gram-negative periodontopathogens that includes Porphyromonas gingivalis, Treponema denticola, and "Tannerella forsythia" (opinion on name change from Tannerella forsythensis pending; formerly Bacteroides forsythus). Epithelial cell invasion by periodontopathogens is considered to be an important virulence mechanism for evasion of the host defense responses. Further, the epithelial cells with invading bacteria also serve as reservoirs important in recurrent infections. The present study was therefore undertaken to address the epithelial cell adherence and invasion properties of T. forsythia and the role of the cell surface-associated protein BspA in these processes. Further, we were interested in determining if P. gingivalis, one of the pathogens frequently found associated in disease, or its outer membrane vesicles (OMVs) could modulate the epithelial cell adherence and invasion abilities of T. forsythia. Here we show that epithelial cell attachment and invasion by T. forsythia are dependent on the BspA protein. In addition, P. gingivalis or its OMVs enhance the attachment and invasion of T. forsythia to epithelial cells. Thus, interactions between these two bacteria may play important roles in virulence by promoting host cell attachment and invasion.

Indexed as

Bacterial AdhesionAntigens, BacterialBacterial ProteinsBacteroidesCell MembraneEpithelial CellsHumansLeucine-Rich Repeat ProteinsMouth MucosaMutationPorphyromonas gingivalisProteinsVirulenceAntigens, BacterialBacterial ProteinsBspA protein, BacteroidesLeucine-Rich Repeat ProteinsProteins

Identifiers

PMID16926393
PMCPMC1594857
OpenAlexW1966777766

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.