Evidence map›Paper›PMID 30742693›Full record

ArticlePLoS pathogens2019

PolyGlcNAc-containing exopolymers enable surface penetration by non-motile Enterococcus faecalis.

Yusibeska Ramos, Jorge Rocha, Ana L Hael, Jordi van Gestel, Hera Vlamakis, Colette Cywes-Bentley, Juan R Cubillos-Ruiz, Gerald B Pier, Michael S Gilmore, Roberto Kolter and 1 more

Open access · goldAbstract read
In one paragraph

Article in PLoS pathogens, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
6.3field-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

26 citing papers in PubMed, 33 citations in OpenAlex.

  1. Science advances · 2026
    Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Microbiology and molecular biology reviews : MMBR · 2024
    Review
  7. Article
  8. Enterococcus faecalis: implications for host health.World journal of microbiology & biotechnology · 2024
    Review
  9. Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. Review
  15. Lytic bacteriophages facilitate antibiotic sensitization ofAntimicrobial agents and chemotherapy · 2021
    Article
  16. Article
  17. Frontiers in microbiology · 2021
    Article
  18. Effects of ClpP protease on biofilm formation of Enterococcus faecalis.Journal of applied oral science : revista FOB · 2021
    Article
  19. Review
  20. 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

11 authors at 4 institutions in 2 countries.

Yusibeska RamosDepartment of Obstetrics and Gynecology, Weill Cornell Medicine, New York, NY, United States of America.ORCID 0000-0003-3964-800X
Jorge RochaDepartment of Microbiology and Immunobiology, Harvard Medical School, Boston, MA, United States of America.ORCID 0000-0002-8083-4325
Ana L HaelDepartment of Microbiology and Immunobiology, Harvard Medical School, Boston, MA, United States of America.
Jordi van GestelDepartment of Evolutionary Biology and Environmental Studies, University of Zürich, Zürich, Switzerland.ORCID 0000-0001-5598-5239
Hera VlamakisDepartment of Microbiology and Immunobiology, Harvard Medical School, Boston, MA, United States of America.
Colette Cywes-BentleyDivision of Infectious Diseases, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States of America.
Juan R Cubillos-RuizDepartment of Obstetrics and Gynecology, Weill Cornell Medicine, New York, NY, United States of America.ORCID 0000-0002-4267-4893
Gerald B PierDivision of Infectious Diseases, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States of America.ORCID 0000-0002-9112-2331
Michael S GilmoreDepartment of Microbiology and Immunobiology, Harvard Medical School, Boston, MA, United States of America.
Roberto KolterDepartment of Microbiology and Immunobiology, Harvard Medical School, Boston, MA, United States of America.
Diana K MoralesDepartment of Obstetrics and Gynecology, Weill Cornell Medicine, New York, NY, United States of America.ORCID 0000-0001-6942-9989
Harvard University · USCornell University · USBrigham and Women's Hospital · USSIB Swiss Institute of Bioinformatics · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Bacterial pathogens have evolved strategies that enable them to invade tissues and spread within the host. Enterococcus faecalis is a leading cause of local and disseminated multidrug-resistant hospital infections, but the molecular mechanisms used by this non-motile bacterium to penetrate surfaces and translocate through tissues remain largely unexplored. Here we present experimental evidence indicating that E. faecalis generates exopolysaccharides containing β-1,6-linked poly-N-acetylglucosamine (polyGlcNAc) as a mechanism to successfully penetrate semisolid surfaces and translocate through human epithelial cell monolayers. Genetic screening and molecular analyses of mutant strains identified glnA, rpiA and epaX as genes critically required for optimal E. faecalis penetration and translocation. Mechanistically, GlnA and RpiA cooperated to generate uridine diphosphate N-acetylglucosamine (UDP-GlcNAc) that was utilized by EpaX to synthesize polyGlcNAc-containing polymers. Notably, exogenous supplementation with polymeric N-acetylglucosamine (PNAG) restored surface penetration by E. faecalis mutants devoid of EpaX. Our study uncovers an unexpected mechanism whereby the RpiA-GlnA-EpaX metabolic axis enables production of polyGlcNAc-containing polysaccharides that endow E. faecalis with the ability to penetrate surfaces. Hence, targeting carbohydrate metabolism or inhibiting biosynthesis of polyGlcNAc-containing exopolymers may represent a new strategy to more effectively confront enterococcal infections in the clinic.

Indexed as

Bacterial ProteinsEnterococcus faecalisExtracellular Polymeric Substance MatrixGram-Positive Bacterial InfectionsHumansPolysaccharides, BacterialBacterial Proteinspolysaccharide intercellular adhesinPolysaccharides, Bacterial

Identifiers

PMID30742693
PMCPMC6386517
OpenAlexW2911783831

What OpenQuestion 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 OpenQuestion graph.