Evidence map›Paper›PMID 20025872›Full record

ArticleExperimental eye research2010

Characterization of corneal keratocyte morphology and mechanical activity within 3-D collagen matrices.

Neema Lakshman, Areum Kim, W Matthew Petroll

Abstract read
In one paragraph

Article in Experimental eye research, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
–field-weighted citation impact
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

33 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Generation of Functional Immortalized Human Corneal Stromal Stem Cells.International journal of molecular sciences · 2022
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Keratocyte mechanobiology.Experimental eye research · 2020
    Review
  13. Corneal pain and experimental model development.Progress in retinal and eye research · 2019
    Review
  14. Article
  15. Article
  16. Article
  17. Fibroblast-fibronectin patterning and network formation in 3D fibrin matrices.Matrix biology : journal of the International Society for Matrix Biology · 2017
    Article
  18. Article
  19. Article
  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.

Neema LakshmanDepartment of Ophthalmology, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX 75390-9057, USA.
Areum Kim
W Matthew Petroll

Funding

Assessment of Corneal Fibroblast Biomechanical BehaviorR01EY013322 · NEI · UT SOUTHWESTERN MEDICAL CENTER · PI PETROLL, W MATTHEW · 2001 to 2025
$9.0M
INFRASTRUCTIRE DEVELOPMENT GRANT FOR CORNEA RESEARCHR24EY016664 · NEI · UT SOUTHWESTERN MEDICAL CENTER · PI NIEDERKORN, JERRY · 2005 to 2009
$1.2M
NEI NIH HHS R01 EY 013322NEI NIH HHS R01 EY013322NEI NIH HHS R24 EY016664
6 · The paper itself

Abstract

The purpose of this study was to assess quantitatively the differences in morphology, cytoskeletal organization and mechanical behavior between quiescent corneal keratocytes and activated fibroblasts in a 3-D culture model. Primary cultures of rabbit corneal keratocytes and fibroblasts were plated inside type I collagen matrices in serum-free media or 10% FBS, and allowed to spread for 1-5 days. Following F-actin labeling using phalloidin, and immunolabeling of tubulin, alpha-smooth muscle actin or connexin 43, fluorescent and reflected light (for collagen fibrils) 3-D optical section images were acquired using laser confocal microscopy. In other experiments, dynamic imaging was performed using differential interference contrast microscopy, and finite element modeling was used to map ECM deformations. Corneal keratocytes developed a stellate morphology with numerous cell processes that ran a tortuous path between and along collagen fibrils without any apparent impact on their alignment. Fibroblasts on the other hand, had a more bipolar morphology with pseudopodial processes (P </= 0.001). Time-lapse imaging of keratocytes revealed occasional extension and retraction of dendritic processes with only transient displacements of collagen fibrils, whereas fibroblasts exerted stronger myosin II-dependent contractile forces (P < 0.01), causing increased compaction and alignment of collagen at the ends of the pseudopodia (P < 0.001). At high cell density, both keratocytes and fibroblasts appeared to form a 3-D network connected via gap junctions. Overall, this experimental model provides a unique platform for quantitative investigation of the morphological, cytoskeletal and contractile behavior of corneal keratocytes (i.e. their mechanical phenotype) in a 3-D microenvironment.

Indexed as

ActinsAnimalsBiomechanical PhenomenaCell MovementCollagen Type IConnexin 43Corneal StromaExtracellular MatrixFibroblastsFinite Element AnalysisMicroscopy, ConfocalMicroscopy, InterferenceRabbitsTubulinActinsCollagen Type IConnexin 43Tubulin

Identifiers

PMID20025872
PMCPMC2822042

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.