Evidence map›Paper›PMID 40554521›Full record

ArticlePLoS pathogens2025

The structural features and immunological role of biomphalysins in the snail Biomphalaria glabrata.

Pierre Poteaux, Aline Parpinel, Chantal Ripoll, Amélie Sarrazin, Richard Galinier, Sabine Brugière, Yohann Couté, Lionel Mourey, Patrick C Hanington, Benjamin Gourbal and 2 more

Abstract read
In one paragraph

Article in PLoS pathogens, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

4 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. 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

12 authors.

Pierre PoteauxIHPE, CNRS, IFREMER, Université de Montpellier, Université Perpignan Via Domitia, Perpignan, France.ORCID 0009-0004-0125-5344
Aline ParpinelInstitut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Toulouse III - Paul Sabatier (UT3), Toulouse, France.
Chantal RipollInstitut de Génomique Fonctionnelle, Université de Montpellier, CNRS, INSERM, Montpellier, France.
Amélie SarrazinMRI, BioCampus Montpellier, CNRS, INSERM, Université de Montpellier, Montpellier, France.
Richard GalinierIHPE, CNRS, IFREMER, Université de Montpellier, Université Perpignan Via Domitia, Perpignan, France.
Sabine BrugièreUniversité Grenoble Alpes, INSERM, CEA, UA13 BGE, CNRS, CEA, UAR2048, Grenoble, France.
Yohann CoutéUniversité Grenoble Alpes, INSERM, CEA, UA13 BGE, CNRS, CEA, UAR2048, Grenoble, France.
Lionel MoureyInstitut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Toulouse III - Paul Sabatier (UT3), Toulouse, France.
Patrick C HaningtonSchool of Public Health, University of Alberta, Edmonton, Alberta, Canada.
Benjamin GourbalIHPE, CNRS, IFREMER, Université de Montpellier, Université Perpignan Via Domitia, Perpignan, France.
Laurent MaveyraudInstitut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Toulouse III - Paul Sabatier (UT3), Toulouse, France.
David DuvalIHPE, CNRS, IFREMER, Université de Montpellier, Université Perpignan Via Domitia, Perpignan, France.

Funding

Chemistry Biology Health (CBH) Graduate School of University Grenoble AlpesFrench National Research Agency (ANR)
6 · The paper itself

Abstract

Biomphalysins are β-Pore Forming Toxins (β-PFT) identified in the planorbid Biomphalaria glabrata that belong to the aerolysin-like protein family. Despite potentially diverse biochemical activities, very few eukaryotic aerolysin-related proteins have been extensively studied. Most of the data refers to their discovery in genomes or to transcriptional activity. The involvement of biomphalysins in the immune response of Biomphalaria glabrata has been studied previously, especially regarding biomphalysin 1, which can bind and kill Schistosoma mansoni mother sporocysts. However, the repartition of biomphalysin 1 protein in B. glabrata has yet to be defined. The transcriptional behavior of the 22 other biomphalysin genes following immune challenge also remains uncharacterized. Therefore, herein, we investigate for the first time the tissular distribution of biomphalysin 1 (and 2) in B. glabrata by histological and cytological analyses through immunofluorescence approaches, notably unveiling unexpected tissue location that are involved in biomphalysin 1 synthesis. Structural predictions of the 23 members of the family have been updated using predictions based on aminoacyl spatial pair representation (AlphaFold2), highlighting unique features of the small lobe. In addition, mass spectrometry-based proteomic data more precisely predicted the regions of post-translational cleavage of biomphalysin 1. Transcriptional activity of the biomphalysin genes was explored, after which the plasmatic presence of the biomphalysin proteins was investigated in naive and S. mansoni-infected snails. The ability of native biomphalysin 1 (and 2) to bind several cell types was also investigated and correlated with the lytic ability of plasma toward the exposed cells, highlighting the central role occupied by biomphalysin 1 (and 2) in the humoral immunity of B. glabrata.

Indexed as

BiomphalariaPore Forming Cytotoxic ProteinsAnimalsSchistosoma mansoniPore Forming Cytotoxic Proteins

Identifiers

PMID40554521
PMCPMC12186885

What Socratic 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 Socratic graph.