Evidence map›Paper›PMID 10569770›Full record

ArticleInfection and immunity1999

Microtubules are associated with intracellular movement and spread of the periodontopathogen Actinobacillus actinomycetemcomitans.

D H Meyer, J E Rose, J E Lippmann, P M Fives-Taylor

Abstract read
In one paragraph

Article in Infection and immunity, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
–field-weighted citation impact
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

20 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Aggregatibacter actinomycetemcomitans - a tooth killer?Journal of clinical and diagnostic research : JCDR · 2014
    Review
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Oral bacterial disease and the science of cellular conversation.Journal of the Royal Society of Medicine · 2002
    Review
  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

4 authors.

D H MeyerDepartment of Microbiology and Molecular Genetics, College of Medicine and College of Agricultural and Life Sciences, University of Vermont, Burlington, Vermont 05405, USA.
J E Rose
J E Lippmann
P M Fives-Taylor

Funding

INVASION AND ADHESION OF PERIOPATHOGENSR01DE009760 · NIDCR · UNIVERSITY OF VERMONT &ST AGRIC COLLEGE · PI MINTZ, KEITH PETER · 1992 to 2007
$2.5M
NIDCR NIH HHS R01 DE009760NIDCR NIH HHS R01DE09760
6 · The paper itself

Abstract

Actinobacillus actinomycetemcomitans SUNY 465, the invasion prototype strain, enters epithelial cells by an actin-dependent mechanism, escapes from the host cell vacuole, and spreads intracellularly and to adjacent epithelial cells via intercellular protrusions. Internalized organisms also egress from host cells into the assay medium via protrusions that are associated with just a single epithelial cell. Here we demonstrate that agents which inhibit microtubule polymerization (e.g., colchicine) and those which stabilize polymerized microtubules (e.g., taxol) both increase markedly the number of intracellular A. actinomycetemcomitans organisms. Furthermore, both colchicine and taxol prevented the egression of A. actinomycetemcomitans from host cells into the assay medium. Immunofluorescence microscopy revealed that protrusions that mediate the bacterial spread contain microtubules. A. actinomycetemcomitans SUNY 465 and 652, strains that are both invasive and egressive, interacted specifically with the plus ends (growing ends) of the filaments of microtubule asters in a KB cell extract. By contrast, neither A. actinomycetemcomitans 523, a strain that is invasive but not egressive, nor Haemophilus aphrophilus, a noninvasive oral bacterium with characteristics similar to those of A. actinomycetemcomitans, bound to microtubules. Together these data suggest that microtubules function in the spread and movement of A. actinomycetemcomitans and provide the first evidence that host cell dispersion of an invasive bacterium may involve the usurption of host cell microtubules.

Indexed as

Aggregatibacter actinomycetemcomitansColchicineColony Count, MicrobialCulture MediaHumansKB CellsMicroscopy, FluorescenceMicrotubulesMovementPaclitaxelColchicineCulture MediaPaclitaxel

Identifiers

PMID10569770
PMCPMC97062

What OpenQuestion holds

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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.