Evidence map›Paper›PMID 11006227›Full record

ArticleInvestigative ophthalmology & visual science2000

Erk and PI-3 kinase are necessary for collagen binding and actin reorganization in corneal epithelia.

C L Chu, W R Reenstra, D L Orlow, K K Svoboda

Open access · greenAbstract read
In one paragraph

Article in Investigative ophthalmology & visual science, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
0.9field-weighted citation impact, top 30% 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

11 citing papers in PubMed, 24 citations in OpenAlex.

  1. Effect of the Expression ofFrontiers in genetics · 2021
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  6. Embryonic chick corneal epithelium: a model system for exploring cell-matrix interactions.Developmental dynamics : an official publication of the American Association of Anatomists · 2008
    Review
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  8. ROCK inhibitor (Y27632) increases apoptosis and disrupts the actin cortical mat in embryonic avian corneal epithelium.Developmental dynamics : an official publication of the American Association of Anatomists · 2004
    Article
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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

4 authors at 1 institution in 1 country.

C L ChuDepartments of Anatomy and Neurobiology and. Pathology, Boston University School of Medicine, Massachusetts, USA.
W R Reenstra
D L Orlow
K K Svoboda
Boston University · US

Funding

BIOLOGY OF THE EMBRYONIC CORNEAL EPITHELIUMR01EY008886 · NEI · TEXAS A&M UNIVERSITY HEALTH SCIENCE CTR · PI SVOBODA, KATHY KAY · 1991 to 2001
$459k
NEI NIH HHS EY08886NEI NIH HHS R01 EY008886NIA NIH HHS AG05706
6 · The paper itself

Abstract

purposeIt was recently shown that phosphatidylinositol-(PI)3 kinase is upregulated in wounded rabbit corneal epithelia. Extracellular signal-regulated kinase (erk)-1 and -2 proteins and PI-3 kinase were activated in embryonic corneal epithelia after 1-hour stimulation by type I collagen. In the current investigation specific inhibitors of PI-3 kinase and mitogen-activated kinase-kinase (MEK-1 kinase) were used to determine the role of these signaling molecules in actin reorganization and collagen binding to isolated sheets of corneal epithelial tissue.

methodsEffects of specific PI-3 kinase and MEK-1 inhibitors (LY294002, PD98059, respectively) were investigated in embryonic corneal epithelial tissues. Avian embryonic corneal epithelia were isolated as tissue sheets, organ cultured in the presence of these specific inhibitors, and stimulated with type I collagen. The tissues were evaluated for collagen-stimulated actin reorganization, erk-1 and -2 and PI-3 kinase activity, total filamentous actin accumulation, and collagen binding.

resultsThe MEK-1 inhibitor PD98059 decreased erk-1 and -2 phosphorylation and blocked actin reorganization in a dose-dependent manner. The PI-3 kinase 85-kDa subunit was decreased 25% in LY294002-treated tissue, and collagen binding also decreased significantly in tissues treated with MEK-1 and PI-3 kinase inhibitors compared with control tissues. In addition, both inhibitors blocked actin cortical mat reorganization. CONCLUSIONS; PI-3 kinase and erk-1 and -2 signaling pathways are activated and necessary for collagen binding and integrin-mediated actin reorganization in embryonic avian corneal epithelium.

Indexed as

ActinsAnimalsBlotting, WesternChick EmbryoChromonesCollagenDose-Response Relationship, DrugElectrophoresis, Polyacrylamide GelEnzyme InhibitorsEpithelium, CornealExtracellular MatrixFlavonoidsMitogen-Activated Protein Kinase 1Mitogen-Activated Protein Kinase 3Mitogen-Activated Protein KinasesMorpholines2-(2-amino-3-methoxyphenyl)-4H-1-benzopyran-4-one2-(4-morpholinyl)-8-phenyl-4H-1-benzopyran-4-oneActinsChromonesCollagenEnzyme InhibitorsFlavonoidsMitogen-Activated Protein Kinase 1Mitogen-Activated Protein Kinase 3Mitogen-Activated Protein KinasesMorpholinesPhosphatidylinositol 3-KinasesPhosphoinositide-3 Kinase Inhibitors

Identifiers

PMID11006227
PMCPMC2864550
OpenAlexW2168589324

What OpenQuestion holds

Textmetadata
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.