Evidence map›Paper›PMID 23555242›Full record

ArticlePLoS pathogens2013

Biomphalysin, a new β pore-forming toxin involved in Biomphalaria glabrata immune defense against Schistosoma mansoni.

Richard Galinier, Julien Portela, Yves Moné, Jean François Allienne, Hélène Henri, Stéphane Delbecq, Guillaume Mitta, Benjamin Gourbal, David Duval

Abstract read
In one paragraph

Article in PLoS pathogens, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers.

0numbers the graph read from it
0cells of the map it votes in
63citing 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

63 citing papers in PubMed.

  1. Article
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  10. Unveiling the hemolymphatic miRNome composition of the schistosomiasis vector snailCurrent research in parasitology & vector-borne diseases · 2025
    Article
  11. Comparative immunological roles of TEP1 inFrontiers in immunology · 2025
    Review
  12. Article
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  14. Article
  15. Review
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  17. Article
  18. Article
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3 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

9 authors.

Richard GalinierCNRS, UMR 5244, Ecologie et Evolution des Interactions, Perpignan, France.
Julien Portela
Yves Moné
Jean François Allienne
Hélène Henri
Stéphane Delbecq
Guillaume Mitta
Benjamin Gourbal
David Duval

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Aerolysins are virulence factors belonging to the β pore-forming toxin (β-PFT) superfamily that are abundantly distributed in bacteria. More rarely, β-PFTs have been described in eukaryotic organisms. Recently, we identified a putative cytolytic protein in the snail, Biomphalaria glabrata, whose primary structural features suggest that it could belong to this β-PFT superfamily. In the present paper, we report the molecular cloning and functional characterization of this protein, which we call Biomphalysin, and demonstrate that it is indeed a new eukaryotic β-PFT. We show that, despite weak sequence similarities with aerolysins, Biomphalysin shares a common architecture with proteins belonging to this superfamily. A phylogenetic approach revealed that the gene encoding Biomphalysin could have resulted from horizontal transfer. Its expression is restricted to immune-competent cells and is not induced by parasite challenge. Recombinant Biomphalysin showed hemolytic activity that was greatly enhanced by the plasma compartment of B. glabrata. We further demonstrated that Biomphalysin with plasma is highly toxic toward Schistosoma mansoni sporocysts. Using in vitro binding assays in conjunction with Western blot and immunocytochemistry analyses, we also showed that Biomphalysin binds to parasite membranes. Finally, we showed that, in contrast to what has been reported for most other members of the family, lytic activity of Biomphalysin is not dependent on proteolytic processing. These results provide the first functional description of a mollusk immune effector protein involved in killing S. mansoni.

Indexed as

AnimalsBiomphalariaCloning, MolecularHelminthiasis, AnimalHost-Parasite InteractionsPore Forming Cytotoxic ProteinsProtein BindingSchistosoma mansoniSchistosomiasis mansoniVirulence Factorsbiomphalysin protein, Biomphalaria glabrataPore Forming Cytotoxic ProteinsVirulence Factors

Identifiers

PMID23555242
PMCPMC3605176

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Registered trials

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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.