Evidence map›Paper›PMID 24826903›Full record

ArticleMolecular microbiology2014

Extracellular vesicles produced by the Gram-positive bacterium Bacillus subtilis are disrupted by the lipopeptide surfactin.

Lisa Brown, Anne Kessler, Pablo Cabezas-Sanchez, Jose L Luque-Garcia, Arturo Casadevall

Open access · bronzeAbstract read
In one paragraph

Article in Molecular microbiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 99 papers.

0numbers the graph read from it
0cells of the map it votes in
99citing papers in PubMed
6.8field-weighted citation impact, top 3% 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

99 citing papers in PubMed, 159 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Optical analysis of bacterial metabolic activity and spore germination via formazan formation.Analytical sciences : the international journal of the Japan Society for Analytical Chemistry · 2026
    Article
  5. Membrane Vesicles ImproveMicroorganisms · 2026
    Article
  6. Article
  7. Review
  8. Review
  9. Article
  10. Article
  11. Review
  12. Review
  13. Extracellular vesicles of Gram-negative and Gram-positive probiotics.Journal of microbiology (Seoul, Korea) · 2025
    Review
  14. Article
  15. Review
  16. Extracellular vesicles in bone aging: therapeutic strategies and applications.Extracellular vesicles and circulating nucleic acids · 2025
    Review
  17. A brief review of membrane vesicles fromFrontiers in microbiology · 2025
    Review
  18. Review
  19. Review
  20. Review

39 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 2 institutions in 2 countries.

Lisa BrownDepartment of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, NY, 10461, USA.
Anne Kessler
Pablo Cabezas-Sanchez
Jose L Luque-Garcia
Arturo Casadevall
Albert Einstein College of Medicine · USUniversidad Complutense de Madrid · ES

Funding

Core-010UL1TR001073 · NCATS · ALBERT EINSTEIN COLLEGE OF MEDICINE, INC · PI KELLER, MARLA J, SHAMOON, HARRY · 2013 to 2017
$21.3M
Synergy of Host Defense Mechanisms in the LungR01HL059842 · NHLBI · YESHIVA UNIVERSITY · PI CASADEVALL, ARTURO · 1997 to 2023
$7.4M
Biology of Fungal MelaninR01AI052733 · NIAID · YESHIVA UNIVERSITY · PI CASADEVALL, ARTURO · 2003 to 2019
$6.6M
PROTECTIVE ANTIBODIES FOR CRYPTOCOCCAL INFECTIONSR01AI033774 · NIAID · YESHIVA UNIVERSITY · PI CASADEVALL, ARTURO · 1994 to 2014
$5.6M
Molecular Characterization of C. neoformans AntibodiesR37AI033142 · NIAID · JOHNS HOPKINS UNIVERSITY · PI CASADEVALL, ARTURO · 2007 to 2016
$3.9M
MOLECULAR CHARACTERIZATION OF C NEOFORMANS ANTIBODIESR01AI033142 · NIAID · YESHIVA UNIVERSITY · PI CASADEVALL, ARTURO · 1994 to 2006
$1.7M
NCATS NIH HHS UL1 TR001073NHLBI NIH HHS HL059842NHLBI NIH HHS R01 HL059842NIAID NIH HHS AI033142NIAID NIH HHS AI033774NIAID NIH HHS AI052733NIAID NIH HHS R01 AI033142NIAID NIH HHS R01 AI033774NIAID NIH HHS R01 AI052733NIAID NIH HHS R37 AI033142
6 · The paper itself

Abstract

Previously, extracellular vesicle production in Gram-positive bacteria was dismissed due to the absence of an outer membrane, where Gram-negative vesicles originate, and the difficulty in envisioning how such a process could occur through the cell wall. However, recent work has shown that Gram-positive bacteria produce extracellular vesicles and that the vesicles are biologically active. In this study, we show that Bacillus subtilis produces extracellular vesicles similar in size and morphology to other bacteria, characterized vesicles using a variety of techniques, provide evidence that these vesicles are actively produced by cells, show differences in vesicle production between strains, and identified a mechanism for such differences based on vesicle disruption. We found that in wild strains of B. subtilis, surfactin disrupted vesicles while in laboratory strains harbouring a mutation in the gene sfp, vesicles accumulated in the culture supernatant. Surfactin not only lysed B. subtilis vesicles, but also vesicles from Bacillus anthracis, indicating a mechanism that crossed species boundaries. To our knowledge, this is the first time a gene and a mechanism has been identified in the active disruption of extracellular vesicles and subsequent release of vesicular cargo in Gram-positive bacteria. We also identify a new mechanism of action for surfactin.

Indexed as

Bacillus anthracisBacillus subtilisBacterial ProteinsBiofilmsLipopeptidesParticle SizePeptides, CyclicProteomeTransport VesiclesBacterial ProteinsLipopeptidesPeptides, CyclicProteomesurfactin peptide

Identifiers

PMID24826903
PMCPMC4079059
OpenAlexW2099089752

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.