Evidence map›Paper›PMID 22069708›Full record

ReviewToxins2011

Aggregatibacter actinomycetemcomitans leukotoxin: a powerful tool with capacity to cause imbalance in the host inflammatory response.

Anders Johansson

Open access · goldAbstract readReview
In one paragraph

Review in Toxins, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 94 papers.

0numbers the graph read from it
0cells of the map it votes in
94citing papers in PubMed
5.5field-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

94 citing papers in PubMed, 152 citations in OpenAlex.

  1. Fermentation-Derived 6-Shogaol fromInternational journal of molecular sciences · 2026
    Article
  2. Prevalence ofPathogens (Basel, Switzerland) · 2026
    Observational
  3. Article
  4. Review
  5. Article
  6. E-cigarette liquids alter the biogenesis and properties ofFrontiers in cellular and infection microbiology · 2026
    Article
  7. Review
  8. Article
  9. Review
  10. Review
  11. Review
  12. Review
  13. Oral Microbiome Dysbiosis and Citrullination in Rheumatoid Arthritis.Advances in experimental medicine and biology · 2025
    Review
  14. Review
  15. Article
  16. Review
  17. Microorganisms · 2024
    Review
  18. Article
  19. Prevalence of SubgingivalPathogens (Basel, Switzerland) · 2024
    Article
  20. Article

34 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

1 author at 1 institution in 1 country.

Anders JohanssonDepartment of Odontology, Umea University, SE-901 87 Umea, Sweden. anders.johansson@odont.umu.se
Umeå University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Aggregatibacter actinomycetemcomitans has been described as a member of the indigenous oral microbiota of humans, and is involved in the pathology of periodontitis and various non-oral infections. This bacterium selectively kills human leukocytes through expression of leukotoxin, a large pore-forming protein that belongs to the Repeat in Toxin (RTX) family. The specificity of the toxin is related to its prerequisite for a specific target cell receptor, LFA-1, which is solely expressed on leukocytes. The leukotoxin causes death of different leukocyte populations in a variety of ways. It activates a rapid release of lysosomal enzymes and MMPs from neutrophils and causes apoptosis in lymphocytes. In the monocytes/macrophages, the toxin activates caspase-1, a cysteine proteinase, which causes a proinflammatory response by the activation and secretion of IL-1β and IL-18. A specific clone (JP2) of A. actinomycetemcomitans with enhanced leukotoxin expression significantly correlates to disease onset in infected individuals. Taken together, the mechanisms by which this toxin kills leukocytes are closely related to the pathogenic mechanisms of inflammatory disorders, such as periodontitis. Therapeutic strategies targeting the cellular and molecular inflammatory host response in periodontal diseases might be a future treatment alternative.

Indexed as

Host-Pathogen InteractionsAggregatibacter actinomycetemcomitansCell DeathCell MembraneExotoxinsHumansImmunity, HumoralLymphocyte Function-Associated Antigen-1LymphocytesMonocytesNeutrophilsPeriodontitisProtein BindingVirulenceExotoxinsleukotoxinLymphocyte Function-Associated Antigen-1Aggregatibacter actinomycetemcomitansleukotoxinproinflammatory responsevirulence mechanisms

Identifiers

PMID22069708
PMCPMC3202821
OpenAlexW2137200078

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.