Evidence map›Paper›PMID 29573213›Full record

ArticleProteomics. Clinical applications2018

Identification of Clostridium difficile Immunoreactive Spore Proteins of the Epidemic Strain R20291.

Marjorie Pizarro-Guajardo, María Cristina Ravanal, Maria Daniela Paez, Eduardo Callegari, Daniel Paredes-Sabja

Abstract read
In one paragraph

Article in Proteomics. Clinical applications, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.2field-weighted citation impact, top 24% 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

16 citing papers in PubMed, 22 citations in OpenAlex.

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  4. Serological Proteome Analysis for Antigen Identification.Methods in molecular biology (Clifton, N.J.) · 2026
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  5. Phenotypic analysis of variousApplied and environmental microbiology · 2025
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  6. Impact of aging on the GABAbioRxiv : the preprint server for biology · 2024
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  7. Review
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  9. Non-Toxin-BasedPathogens (Basel, Switzerland) · 2023
    Article
  10. Emerging microbes & infections · 2022
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. 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

5 authors at 2 institutions in 2 countries.

Marjorie Pizarro-GuajardoMicrobiota-Host Interactions and Clostridia Research Group, Facultad de Ciencias Biológicas, Department of Biological Sciences, Universidad Andrés Bello, Santiago, 8370146, Chile.
María Cristina RavanalCenter for Bioinformatics and Integrative Biology, Facultad de Ciencias Biológicas, Universidad Andrés Bello, Santiago, 8370146, Chile.
Maria Daniela PaezSD-BRIN Proteomics Core Facility, Sanford School of Medicine, University of South Dakota,, Vermillion, SD, 57069, USA.
Eduardo CallegariSD-BRIN Proteomics Core Facility, Sanford School of Medicine, University of South Dakota,, Vermillion, SD, 57069, USA.
Daniel Paredes-SabjaMicrobiota-Host Interactions and Clostridia Research Group, Facultad de Ciencias Biológicas, Department of Biological Sciences, Universidad Andrés Bello, Santiago, 8370146, Chile.
Universidad Andrés Bello · CLUniversity of South Dakota · US

Funding

Wichozani-A Healthy Lifestyle for Rural American Indian Youth through Cultural and Physical Activities: A Community-Based Participatory Research StudyP20GM103443 · NIGMS · UNIVERSITY OF SOUTH DAKOTA · PI Ryan Michael Johnson · 2012 to 2026
$58.1M
Fondo Nacional de Ciencia y Tecrknología deNIGMS NIH HHS P20 GM103443
6 · The paper itself

Abstract

purposeClostridium difficile infections are the leading cause of diarrhea associated with the use of antibiotics. During infection, C. difficile initiates a sporulation cycle leading to the persistence of C. difficile spores in the host and disease dissemination. The development of vaccine and passive immunization therapies against C. difficile has focused on toxins A and B. In this study, an immunoproteome-based approach to identify immunogenic proteins located on the outer layers of C. difficile spores as potential candidates for the development of immunotherapy and/or diagnostic methods against this devastating infection is used. EXPERIMENTAL

designTo identify potential immunogenic proteins on the surface of C. difficile R20291, spore coat/exosporium extracts are separated by 2D electrophoresis (2-DE) and analyzed for reactivity against C. difficile spore-specific goat sera. Finally, the selected spots are in-gel digested with chymotrypsin, peptides generated are separated by nanoUPLC followed by MS/MS using Quad-TOF-MS, corroborated by Ultimate 3000RS-nano-UHPLC coupled to Q-Exactive-Plus-Orbitrap MS.

resultsThe analysis identify five immunoreactive proteins: spore coat proteins CotE, CotA, and CotCB; exosporium protein CdeC; and a cytosolic methyltransferase.

conclusionThis data provides a list of spore surface protein candidates as antigens for vaccine development against C. difficile infections.

Indexed as

Bacterial ProteinsCell WallClostridioides difficileEnterocolitis, PseudomembranousHumansMembrane ProteinsSpores, BacterialTandem Mass SpectrometryBacterial ProteinsMembrane Proteins2D electrophoresisCDI patientsClostridium difficileimmunoproteomicsisoelectric focusingserologic reactivityspores

Identifiers

PMID29573213
PMCPMC6370038
OpenAlexW2790011860

What OpenQuestion holds

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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.