Evidence map›Paper›PMID 22941091›Full record

ArticleApplied and environmental microbiology2012

EDTA inhibits biofilm formation, extracellular vesicular secretion, and shedding of the capsular polysaccharide glucuronoxylomannan by Cryptococcus neoformans.

Emma J Robertson, Julie M Wolf, Arturo Casadevall

Open access · bronzeAbstract read
In one paragraph

Article in Applied and environmental microbiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
3.5field-weighted citation impact, top 7% 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

29 citing papers in PubMed, 56 citations in OpenAlex.

  1. Calcium triggersbioRxiv : the preprint server for biology · 2026
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  2. Membrane Vesicles ImproveMicroorganisms · 2026
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  4. Improvement of the Lyophilization Survival Rate ofFoods (Basel, Switzerland) · 2022
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  5. The phosphate language of fungi.Trends in microbiology · 2022
    Review
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  7. Article
  8. Article
  9. Review
  10. Article
  11. Extracellular Vesicles in Fungi: Past, Present, and Future Perspectives.Frontiers in cellular and infection microbiology · 2020
    Review
  12. Review
  13. NLRP3 Inflammasome and Inflammatory Diseases.Oxidative medicine and cellular longevity · 2020
    Review
  14. Article
  15. Review
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  18. Article
  19. Review
  20. 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

3 authors at 1 institution in 1 country.

Emma J RobertsonDepartment of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, New York, USA.
Julie M Wolf
Arturo Casadevall
Albert Einstein College of Medicine · US

Funding

Molecular Characterization of C. neoformans AntibodiesR37AI033142 · NIAID · JOHNS HOPKINS UNIVERSITY · PI CASADEVALL, ARTURO · 2007 to 2016
$3.9M
NIAID NIH HHS R37 AI033142
6 · The paper itself

Abstract

The fungal pathogen Cryptococcus neoformans can grow as a biofilm on a range of synthetic and prosthetic materials. Cryptococcal biofilm formation can complicate the placement of shunts used to relieve increased intracranial pressure in cryptococcal meningitis and can serve as a nidus for chronic infection. Biofilms are generally advantageous to pathogens in vivo, as they can confer resistance to antimicrobial compounds, including fluconazole and voriconazole in the case of C. neoformans. EDTA can inhibit biofilm formation by several microbes and enhances the susceptibility of biofilms to antifungal drugs. In this study, we evaluated the effect of sublethal concentrations of EDTA on the growth of cryptococcal biofilms. EDTA inhibited biofilm growth by C. neoformans, and the inhibition could be reversed by the addition of magnesium or calcium, implying that the inhibitory effect was by divalent cation starvation. EDTA also reduced the amount of the capsular polysaccharide glucuronoxylomannan shed into the biofilm matrix and decreased vesicular secretion from the cell, thus providing a potential mechanism for the inhibitory effect of this cation-chelating compound. Our data imply that the growth of C. neoformans biofilms requires the presence of divalent metals in the growth medium and suggest that cations are required for the export of materials needed for biofilm formation, possibly including extracellular vesicles.

Indexed as

BiofilmsCalciumCations, DivalentCryptococcus neoformansEdetic AcidMagnesiumPolysaccharidesSecretory VesiclesCalciumCations, DivalentEdetic AcidglucuronoxylomannanMagnesiumPolysaccharides

Identifiers

PMID22941091
PMCPMC3485937
OpenAlexW2161456910

What OpenQuestion holds

Textmetadata
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 OpenQuestion graph.