Evidence map›Paper›PMID 19835618›Full record

ArticleBMC microbiology2009

Outer membrane vesicle-mediated release of cytolethal distending toxin (CDT) from Campylobacter jejuni.

Barbro Lindmark, Pramod Kumar Rompikuntal, Karolis Vaitkevicius, Tianyan Song, Yoshimitsu Mizunoe, Bernt Eric Uhlin, Patricia Guerry, Sun Nyunt Wai

Open access · goldAbstract read
In one paragraph

Article in BMC microbiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 96 papers.

0numbers the graph read from it
0cells of the map it votes in
96citing papers in PubMed
13.8field-weighted citation impact, top 1% 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

96 citing papers in PubMed, 174 citations in OpenAlex.

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  11. Extracellular Vesicles fromJournal of fungi (Basel, Switzerland) · 2024
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  14. Cells · 2024
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36 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

8 authors at 3 institutions in 3 countries.

Barbro LindmarkDepartment of Molecular Biology, Umeå University, S-90187 Umeå, Sweden. barbro.lindmark@molbiol.umu.se
Pramod Kumar Rompikuntal
Karolis Vaitkevicius
Tianyan Song
Yoshimitsu Mizunoe
Bernt Eric Uhlin
Patricia Guerry
Sun Nyunt Wai
Umeå University · SEJikei University School of Medicine · JPNaval Medical Research Command · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundBackground: Cytolethal distending toxin (CDT) is one of the well-characterized virulence factors of Campylobacter jejuni, but it is unknown how CDT becomes surface-exposed or is released from the bacterium to the surrounding environment.

resultsOur data suggest that CDT is secreted to the bacterial culture supernatant via outer membrane vesicles (OMVs) released from the bacteria. All three subunits (the CdtA, CdtB, and CdtC proteins) were detected by immunogold labeling and electron microscopy of OMVs. Subcellular fractionation of the bacteria indicated that, apart from the majority of CDT detected in the cytoplasmic compartment, appreciable amounts (20-50%) of the cellular pool of CDT proteins were present in the periplasmic compartment. In the bacterial culture supernatant, we found that a majority of the extracellular CDT was tightly associated with the OMVs. Isolated OMVs could exert the cell distending effects typical of CDT on a human intestinal cell line, indicating that CDT is present there in a biologically active form.

conclusionOur results strongly suggest that the release of outer membrane vesicles is functioning as a route of C. jejuni to deliver all the subunits of CDT toxin (CdtA, CdtB, and CdtC) to the surrounding environment, including infected host tissue.

Indexed as

Bacterial ToxinsCampylobacter jejuniCell Line, TumorHumansMicroscopy, Atomic ForceMicroscopy, ImmunoelectronTransport VesiclesBacterial Toxinscytolethal distending toxin

Identifiers

PMID19835618
PMCPMC2770062
OpenAlexW2015653215

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.