Evidence map›Paper›PMID 23056496›Full record

ArticlePloS one2012

Oligomerization of Clostridium perfringens epsilon toxin is dependent upon caveolins 1 and 2.

Christine M Fennessey, Jinsong Sheng, Donald H Rubin, Mark S McClain

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
2.1field-weighted citation impact, top 14% 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

28 citing papers in PubMed, 48 citations in OpenAlex.

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  8. Toxins · 2020
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  10. Gut Microbiota in Neurological Disorders.Archivum immunologiae et therapiae experimentalis · 2019
    Review
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  13. NPJ vaccines · 2019
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  14. Review
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  16. Evaluation of plant-producedThe Onderstepoort journal of veterinary research · 2017
    Article
  17. Review
  18. Review
  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 at 1 institution in 1 country.

Christine M FennesseyDivision of Infectious Disease, Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America.
Jinsong Sheng
Donald H Rubin
Mark S McClain
Vanderbilt University · US

Funding

Inhibition of Clostridium perfringens epsilon toxinR01AI079123 · NIAID · VANDERBILT UNIVERSITY · PI MCCLAIN, MARK S · 2008 to 2011
$1.5M
NIAID NIH HHS R01 AI079123NIAID NIH HHS R01-AI079123
6 · The paper itself

Abstract

Evidence from multiple studies suggests that Clostridium perfringens ε-toxin is a pore-forming toxin, assembling into oligomeric complexes in the plasma membrane of sensitive cells. In a previous study, we used gene-trap mutagenesis to identify mammalian factors contributing to toxin activity, including caveolin-2 (CAV2). In this study, we demonstrate the importance of caveolin-2 and its interaction partner, caveolin-1 (CAV1), in ε-toxin-induced cytotoxicity. Using CAV2-specific shRNA in a toxin-sensitive human kidney cell line, ACHN, we confirmed that cells deficient in CAV2 exhibit increased resistance to ε-toxin. Similarly, using CAV1-specific shRNA, we demonstrate that cells deficient in CAV1 also exhibit increased resistance to the toxin. Immunoprecipitation of CAV1 and CAV2 from ε-toxin-treated ACHN cells demonstrated interaction of both CAV1 and -2 with the toxin. Furthermore, blue-native PAGE indicated that the toxin and caveolins were components of a 670 kDa protein complex. Although ε-toxin binding was only slightly perturbed in caveolin-deficient cells, oligomerization of the toxin was dramatically reduced in both CAV1- and CAV2-deficient cells. These results indicate that CAV1 and -2 potentiate ε-toxin induced cytotoxicity by promoting toxin oligomerization - an event which is requisite for pore formation and, by extension, cell death.

Indexed as

Protein MultimerizationAnimalsBacterial ToxinsCaveolin 1Caveolin 2Cell SurvivalDogsGene Knockdown TechniquesHumansMadin Darby Canine Kidney CellsProtein Structure, QuaternaryRNA, Small InterferingBacterial ToxinsCaveolin 1Caveolin 2Clostridium perfringens epsilon-toxinRNA, Small Interfering

Identifiers

PMID23056496
PMCPMC3462777
OpenAlexW1985318723

What OpenQuestion holds

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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.