Evidence map›Paper›PMID 28771584›Full record

ArticlePLoS pathogens2017

Extracellular motility and cell-to-cell transmission of enterohemorrhagic E. coli is driven by EspFU-mediated actin assembly.

Katrina B Velle, Kenneth G Campellone

Open access · goldAbstract read
In one paragraph

Article in PLoS pathogens, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
2.7field-weighted citation impact, top 11% 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

14 citing papers in PubMed, 27 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. mSphere · 2025
    Article
  5. Review
  6. Review
  7. Review
  8. Article
  9. Article
  10. Review
  11. Article
  12. Genomic Properties and Temporal Analysis of the Interaction of an InvasiveFrontiers in cellular and infection microbiology · 2020
    Article
  13. Review
  14. 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

2 authors at 1 institution in 1 country.

Katrina B VelleDepartment of Molecular and Cell Biology, Institute for Systems Genomics, University of Connecticut, Storrs, Connecticut, United States of America.
Kenneth G CampelloneDepartment of Molecular and Cell Biology, Institute for Systems Genomics, University of Connecticut, Storrs, Connecticut, United States of America.ORCID http://orcid.org/0000-0002-3178-9804
University of Connecticut · US

Funding

Cytoskeletal control of membrane remodelingR01GM107441 · NIGMS · UNIVERSITY OF CONNECTICUT STORRS · PI CAMPELLONE, KENNETH G · 2014 to 2018
$1.4M
Cytoskeletal functions in cell aging and diseaseK02AG050774 · NIA · UNIVERSITY OF CONNECTICUT STORRS · PI CAMPELLONE, KENNETH G · 2016 to 2021
$838k
NIA NIH HHS K02 AG050774NIGMS NIH HHS R01 GM107441
6 · The paper itself

Abstract

Enteropathogenic and enterohemorrhagic Escherichia coli (EPEC and EHEC) are closely-related pathogens that attach tightly to intestinal epithelial cells, efface microvilli, and promote cytoskeletal rearrangements into protrusions called actin pedestals. To trigger pedestal formation, EPEC employs the tyrosine phosphorylated transmembrane receptor Tir, while EHEC relies on the multivalent scaffolding protein EspFU. The ability to generate these structures correlates with bacterial colonization in several animal models, but the precise function of pedestals in infection remains unclear. To address this uncertainty, we characterized the colonization properties of EPEC and EHEC during infection of polarized epithelial cells. We found that EPEC and EHEC both formed distinct bacterial communities, or "macrocolonies," that encompassed multiple host cells. Tir and EspFU, as well as the host Arp2/3 complex, were all critical for the expansion of macrocolonies over time. Unexpectedly, EspFU accelerated the formation of larger macrocolonies compared to EPEC Tir, as EspFU-mediated actin assembly drove faster bacterial motility to cell junctions, where bacteria formed a secondary pedestal on a neighboring cell and divided, allowing one of the daughters to disengage and infect the second cell. Collectively, these data reveal that EspFU enhances epithelial colonization by increasing actin-based motility and promoting an efficient method of cell-to-cell transmission.

Indexed as

ActinsCaco-2 CellsCarrier ProteinsChemotaxisCytoskeletonEnterohemorrhagic Escherichia coliEscherichia coli InfectionsEscherichia coli ProteinsHeLa CellsHumansIntracellular Signaling Peptides and ProteinsMicroscopy, Electron, TransmissionMicroscopy, FluorescenceActinsCarrier ProteinsEscherichia coli ProteinsEspFU protein, E coliIntracellular Signaling Peptides and Proteins

Identifiers

PMID28771584
PMCPMC5557606
OpenAlexW2743797132

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.