Evidence map›Paper›PMID 27563231›Full record

ArticleMolecular vision2016

Contact-mediated control of radial migration of corneal epithelial cells.

Petr Walczysko, Ann M Rajnicek, J Martin Collinson

Open access · greenAbstract read
In one paragraph

Article in Molecular vision, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
0.9field-weighted citation impact, top 24% 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

9 citing papers in PubMed, 12 citations in OpenAlex.

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  9. The core planar cell polarity gene,Royal Society open science · 2016
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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.

Petr WalczyskoSchool of Medicine, Medical Sciences and Nutrition, University of Aberdeen Institute of Medical Sciences, Foresterhill, Aberdeen, UK.
Ann M RajnicekSchool of Medicine, Medical Sciences and Nutrition, University of Aberdeen Institute of Medical Sciences, Foresterhill, Aberdeen, UK.
J Martin CollinsonSchool of Medicine, Medical Sciences and Nutrition, University of Aberdeen Institute of Medical Sciences, Foresterhill, Aberdeen, UK.
University of Aberdeen · GB

Funding

Biotechnology and Biological Sciences Research Council BB/E015840/1
6 · The paper itself

Abstract

purposePatients with a heterozygous mutation in the gene encoding the transcription factor, PAX6, have a degenerative corneal opacity associated with failure of normal radial epithelial cell migration across the corneal surface and a reported wound healing defect. This study investigated the guidance mechanisms that drive the directed migration of corneal epithelial cells.

methodsIn vivo corneal epithelial wounding was performed in adult wild-type and Pax6(+/-) mice, and the healing migration rates were compared. To investigate the control of the cell migration direction, primary corneal epithelial cells from wild-type and Pax6(+/-) mice were plated on grooved quartz substrates, and alignment relative to the grooves was assayed. A reconstructed corneal culture system was developed in which dissociated wild-type and genetically mutant corneal epithelial cells could be cultured on a de-epithelialized corneal stroma or basement membrane and their migration assayed with time-lapse microscopy.

resultsThe Pax6(+/-) cells efficiently re-epithelialized corneal wounds in vivo but had mild slowing of healing migration compared to the wild-type. Cells aligned parallel to quartz grooves in vitro, but the Pax6(+/-) cells were less robustly oriented than the wild-type. In the reconstructed corneal culture system, corneal epithelial cells continued to migrate radially, showing that the cells are guided by contact-mediated cues from the basement membrane. Recombining wild-type and Pax6 mutant corneal epithelial cells with wild-type and Pax6 mutant corneal stroma showed that normal Pax6 dosage was required autonomously in the epithelial cells for directed migration. Integrin-mediated attachment to the substrate, and intracellular PI3Kγ activity, were required for migration. Pharmacological inhibition of cAMP signaling randomized migration tracks in reconstructed corneas.

conclusionsStriking patterns of centripetal migration of corneal epithelial cells observed in vivo are driven by contact-mediated cues operating through an intracellular cAMP pathway, and failure to read these cues underlies the migration defects that accompany corneal degeneration in patients with mutations in PAX6.

Indexed as

AnimalsCell MovementClass Ib Phosphatidylinositol 3-KinaseCorneal InjuriesCorneal StromaCyclic AMPDisease Models, AnimalEpithelial CellsFemaleFocal AdhesionsMaleMiceMice, Inbred C57BLMice, Inbred CBAMice, KnockoutPAX6 Transcription FactorClass Ib Phosphatidylinositol 3-KinaseCyclic AMPPAX6 Transcription FactorPik3cg protein, mouse

Identifiers

PMID27563231
PMCPMC4976620
OpenAlexW2516317699

What Socratic holds

Textmetadata
LicenceCC BY-NC-ND
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 Socratic graph.