Evidence map›Paper›PMID 11254565›Full record

ArticleInfection and immunity2001

Flagellum of Legionella pneumophila positively affects the early phase of infection of eukaryotic host cells.

C Dietrich, K Heuner, B C Brand, J Hacker, M Steinert

Open access · bronzeAbstract read
In one paragraph

Article in Infection and immunity, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed
5.4field-weighted citation impact, top 4% 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

50 citing papers in PubMed, 119 citations in OpenAlex.

  1. Article
  2. Cross-Kingdom Pathogenesis ofMicroorganisms · 2024
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  3. Ecology ofBiofilm · 2024
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  4. Propulsive cell entry diverts pathogens from immune degradation by remodeling the phagocytic synapse.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  5. Article
  6. Protein sociology of ProA, Mip and other secreted virulence factors at theFrontiers in cellular and infection microbiology · 2023
    Review
  7. Review
  8. Article
  9. Article
  10. Zinc Metalloprotease ProA fromBiomolecules · 2022
    Article
  11. Article
  12. Article
  13. Two PrevalentFrontiers in veterinary science · 2020
    Article
  14. Review
  15. The Life Cycle ofFrontiers in cellular and infection microbiology · 2018
    Review
  16. Pathogenomics of Virulence Traits ofFrontiers in microbiology · 2018
    Article
  17. Review
  18. Article
  19. Article
  20. The Flagellar Regulon ofFrontiers in cellular and infection microbiology · 2017
    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

5 authors at 1 institution in 1 country.

C DietrichInstitut für Molekulare Infektionsbiologie, Universität Würzburg, D-97070 Würzburg, Germany.
K Heuner
B C Brand
J Hacker
M Steinert
University of Würzburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Legionella pneumophila, the etiologic agent of Legionnaires' disease, contains a single, monopolar flagellum which is composed of one major subunit, the FlaA protein. To evaluate the role of the flagellum in the pathogenesis and ecology of Legionella, the flaA gene of L. pneumophila Corby was mutagenized by introduction of a kanamycin resistance cassette. Immunoblots with antiflagellin-specific polyclonal antiserum, electron microscopy, and motility assays confirmed that the specific flagellar mutant L. pneumophila Corby KH3 was nonflagellated. The redelivery of the intact flaA gene into the chromosome (L. pneumophila Corby CD10) completely restored flagellation and motility. Coculture studies showed that the invasion efficiency of the flaA mutant was moderately reduced in amoebae and severely reduced in HL-60 cells. In contrast, adhesion and the intracellular rate of replication remained unaffected. Taking these results together, we have demonstrated that the flagellum of L. pneumophila positively affects the establishment of infection by facilitating the encounter of the host cell as well as by enhancing the invasion capacity.

Indexed as

AcanthamoebaAnimalsBacterial AdhesionFlagellaFlagellinHL-60 CellsHumansLegionella pneumophilaflaA protein, bacteriaFlagellin

Identifiers

PMID11254565
PMCPMC98137
OpenAlexW2110030031

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.