Evidence map›Paper›PMID 33159116›Full record

ArticleScientific reports2020

Lactobacillus casei extracellular vesicles stimulate EGFR pathway likely due to the presence of proteins P40 and P75 bound to their surface.

Christine Bäuerl, José M Coll-Marqués, Carmen Tarazona-González, Gaspar Pérez-Martínez

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
4.6field-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

39 citing papers in PubMed, 69 citations in OpenAlex.

  1. Review
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  8. Review
  9. iScience · 2025
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  13. Review
  14. Review
  15. Frontiers in immunology · 2025
    Article
  16. Review
  17. Probiotic, Postbiotic, and Paraprobiotic Effects ofFoods (Basel, Switzerland) · 2024
    Review
  18. International journal of molecular sciences · 2024
    Article
  19. Article
  20. Molecular Mechanisms ofMicroorganisms · 2024
    Review
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 2 institutions in 1 country.

Christine BäuerlLaboratory of Lactic Acid Bacteria and Probiotics, Department of Food Biotechnology, Instituto de Agroquímica y Tecnología de Alimentos, Consejo Superior de Investigaciones Científicas (CSIC) (Spanish National Research Council), Avenida Agustín Escardino, 7, 46980, Paterna, Valencia, Spain.
José M Coll-MarquésLaboratory of Lactic Acid Bacteria and Probiotics, Department of Food Biotechnology, Instituto de Agroquímica y Tecnología de Alimentos, Consejo Superior de Investigaciones Científicas (CSIC) (Spanish National Research Council), Avenida Agustín Escardino, 7, 46980, Paterna, Valencia, Spain.
Carmen Tarazona-GonzálezLaboratory of Lactic Acid Bacteria and Probiotics, Department of Food Biotechnology, Instituto de Agroquímica y Tecnología de Alimentos, Consejo Superior de Investigaciones Científicas (CSIC) (Spanish National Research Council), Avenida Agustín Escardino, 7, 46980, Paterna, Valencia, Spain.
Gaspar Pérez-MartínezLaboratory of Lactic Acid Bacteria and Probiotics, Department of Food Biotechnology, Instituto de Agroquímica y Tecnología de Alimentos, Consejo Superior de Investigaciones Científicas (CSIC) (Spanish National Research Council), Avenida Agustín Escardino, 7, 46980, Paterna, Valencia, Spain. gaspar.perez@iata.csic.es.
Consejo Superior de Investigaciones Científicas · ESInstituto de Agroquímica y Tecnología de Alimentos · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In the complex interplay of beneficial bacteria with the host, there are few examples of bacterial metabolites and effector molecules that have been consistently identified. Protective effects on the intestinal epithelium have been ascribed to P40 and P75, two well characterized cell wall muramidases, present in the culture supernatant of strains belonging to the taxon Lactobacillus casei/paracasei/rhamnosus. This work reports that Lactobacillus casei BL23 extracellular vesicles (BL23 EVs) have a small size (17-20 nm or 24-32 nm, depending on the method used) and contain lipoteichoic acid (LTA). Interestingly, all detected P40 and most of P75 were associated to EVs and possibly located at their external surface, as shown by proteinase K digestion. Biosensor assays showed that both proteins bind LTA and vesicles, suggesting that they could bind to ligands like LTA present on BL23 EVs. Native BL23 EVs have a moderate proinflammatory effect and they were able to induce phosphorylation of the epidermal growth factor receptor (EGFR), showing an effect similar to purified P40 and P75 and leading to the conclusion that the activity described in the supernatant (postbiotic) of these bacteria would be mainly due to P40 and P75 bound to EVs.

Indexed as

Bacterial ProteinsCell Line, TumorErbB ReceptorsExtracellular VesiclesHumansIntestinal MucosaLacticaseibacillus caseiMuramidaseSignal TransductionBacterial ProteinsEGFR protein, humanErbB ReceptorsMuramidase

Identifiers

PMID33159116
PMCPMC7648624
OpenAlexW3095004196

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.