Evidence map›Paper›PMID 30653966›Full record

ArticleExperimental eye research2019

Epithelial cells exert differential traction stress in response to substrate stiffness.

Obianamma E Onochie, Alicia Zollinger, Celeste B Rich, Michael Smith, Vickery Trinkaus-Randall

Abstract read
In one paragraph

Article in Experimental eye research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.6field-weighted citation impact, top 20% 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

17 citing papers in PubMed, 25 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Proximity labeling reveals dynamic changes in the SQSTM1 protein network.bioRxiv : the preprint server for biology · 2024
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Age Dependent Changes in Corneal Epithelial Cell Signaling.Frontiers in cell and developmental biology · 2022
    Article
  11. Article
  12. Review
  13. Review
  14. Polymodal Sensory Transduction in Mouse Corneal Epithelial Cells.Investigative ophthalmology & visual science · 2020
    Article
  15. Article
  16. Article
  17. 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

5 authors at 1 institution in 1 country.

Obianamma E OnochieDepartment of Biochemistry, Boston University School of Medicine, Boston, MA, USA. Electronic address: obionochie@gmail.com.
Alicia ZollingerDepartment of Biomedical Engineering, Boston University, Boston, MA, USA. Electronic address: azolling@bu.edu.
Celeste B RichDepartment of Biochemistry, Boston University School of Medicine, Boston, MA, USA. Electronic address: cbrich@bu.edu.
Michael SmithDepartment of Biomedical Engineering, Boston University, Boston, MA, USA. Electronic address: msmith@bu.edu.
Vickery Trinkaus-RandallDepartment of Biochemistry, Boston University School of Medicine, Boston, MA, USA; Department of Ophthalmology, Boston University School of Medicine, Boston, MA, USA. Electronic address: vickery@bu.edu.
Boston University · US

Funding

Molecular Mechanisms of corneal wound repairR01EY006000 · NEI · BOSTON UNIVERSITY MEDICAL CAMPUS · PI TRINKAUS-RANDALL, VICKERY E · 1986 to 2018
$6.8M
NEI NIH HHS R01 EY006000
6 · The paper itself

Abstract

Epithelial wound healing is essential for maintaining the function and clarity of the cornea. Successful repair after injury involves the coordinated movements of cell sheets over the wounded region. While collective migration has been the focus of studies, the effects that environmental changes have on this form of movement are poorly understood. To examine the role of substrate compliancy on multi-layered epithelial sheet migration, we performed traction force and confocal microscopy to determine differences in traction forces and to examine focal adhesions on synthetic and biological substrates. The leading edges of corneal epithelial sheets undergo retraction or contraction prior to migration, and alterations in the sheet's stiffness are affected by the amount of force exerted by cells at the leading edge. On substrates of 30 kPa, cells exhibited greater and more rapid movement than on substrates of 8 kPa, which are similar to that of the corneal basement membrane. Vinculin and its phosphorylated residue Y1065 were prominent along the basal surface of migrating cells, while Y822 was prominent between neighboring cells along the leading edge. Vinculin localization was diffuse on a substrate where the basement membrane was removed. Furthermore, when cells were cultured on fibronectin-coated acrylamide substrates of 8 and 50 kPa and then wounded, there was an injury-induced phosphorylation of Y1065 and substrate dependent changes in the number and size of vinculin containing focal adhesions. These results demonstrate that changes in substrate stiffness affected traction forces and vinculin dynamics, which potentially could contribute to the delayed healing response associated with certain corneal pathologies.

Indexed as

Analysis of VarianceBiomechanical PhenomenaCell AdhesionCell MovementCorneaEpithelial CellsEpitheliumHumansLimbus CorneaePhosphorylationVinculinVinculinBSA (bovine serum albumin)Confocal fluorescence microscopyCorneaDMEM (Dulbecco's modified eagles medium)Extracellular matrixF-actin (filamentous actin)FTTC (fourier transform traction cytometry)K-SFM (keratinocyte-serum free media)Madin-darby canine kidney epithelial (MDCK)Organ culturePBS (phosphate buffered saline)Traction force microscopyUnwound (unw)VinculinWk (week)

Identifiers

PMID30653966
PMCPMC6443458
OpenAlexW2910360852

What OpenQuestion holds

Textmetadata
LicenceTDM
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.