Evidence map›Paper›PMID 20498856›Full record

ArticlePloS one2010

Clostridial glucosylating toxins enter cells via clathrin-mediated endocytosis.

Panagiotis Papatheodorou, Constantinos Zamboglou, Selda Genisyuerek, Gregor Guttenberg, Klaus Aktories

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 86 papers.

0numbers the graph read from it
0cells of the map it votes in
86citing papers in PubMed
5.0field-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

86 citing papers in PubMed, 157 citations in OpenAlex.

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  15. Structure and conformational dynamics ofLife science alliance · 2022
    Article
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  18. Neutralizing epitopes onFrontiers in immunology · 2022
    Article
  19. Article
  20. Large Clostridial Toxins: Mechanisms and Roles in Disease.Microbiology and molecular biology reviews : MMBR · 2021
    Review

26 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

5 authors at 1 institution in 1 country.

Panagiotis PapatheodorouInstitut für Experimentelle und Klinische Pharmakologie und Toxikologie, Albert-Ludwigs-Universität Freiburg, Freiburg, Germany.
Constantinos Zamboglou
Selda Genisyuerek
Gregor Guttenberg
Klaus Aktories
University of Freiburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Clostridium difficile toxin A (TcdA) and toxin B (TcdB), C. sordellii lethal toxin (TcsL) and C. novyi alpha-toxin (TcnA) are important pathogenicity factors, which represent the family of the clostridial glucosylating toxins (CGTs). Toxin A and B are associated with antibiotic-associated diarrhea and pseudomembraneous colitis. Lethal toxin is involved in toxic shock syndrome after abortion and alpha-toxin in gas gangrene development. CGTs enter cells via receptor-mediated endocytosis and require an acidified endosome for translocation of the catalytic domain into the cytosol. Here we studied the endocytic processes that mediate cell internalization of the CGTs. Intoxication of cells was monitored by analyzing cell morphology, status of Rac glucosylation in cell lysates and transepithelial resistance of cell monolayers. We found that the intoxication of cultured cells by CGTs was strongly delayed when cells were preincubated with dynasore, a cell-permeable inhibitor of dynamin, or chlorpromazine, an inhibitor of the clathrin-dependent endocytic pathway. Additional evidence about the role of clathrin in the uptake of the prototypical CGT family member toxin B was achieved by expression of a dominant-negative inhibitor of the clathrin-mediated endocytosis (Eps15 DN) or by siRNA against the clathrin heavy chain. Accordingly, cells that expressed dominant-negative caveolin-1 were not protected from toxin B-induced cell rounding. In addition, lipid rafts impairment by exogenous depletion of sphingomyelin did not decelerate intoxication of HeLa cells by CGTs. Taken together, our data indicate that the endocytic uptake of the CGTs involves a dynamin-dependent process that is mainly governed by clathrin.

Indexed as

EndocytosisBacterial ProteinsBacterial ToxinsCaveolaeChlorpromazineClathrin Heavy ChainsCoated Pits, Cell-MembraneDynaminsGenes, DominantGlycosylationHeLa CellsHumansHydrazonesMutationRNA InterferenceSphingomyelin PhosphodiesteraseBacterial ProteinsBacterial ToxinsChlorpromazineClathrin Heavy ChainsDynaminsHydrazonesN'-(3,4-dihydroxybenzylidene)-3-hydroxy-2-naphthahydrazideSphingomyelin PhosphodiesteraseSphingomyelinstoxB protein, Clostridium difficile

Identifiers

PMID20498856
PMCPMC2871790
OpenAlexW2161266187

What OpenQuestion holds

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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.