Evidence map›Paper›PMID 20580707›Full record

ArticleExperimental cell research2010

Syndecan-1 regulates cell migration and fibronectin fibril assembly.

Mary Ann Stepp, William P Daley, Audrey M Bernstein, Sonali Pal-Ghosh, Gauri Tadvalkar, Alexey Shashurin, Sarah Palsen, Rosalyn A Jurjus, Melinda Larsen

Abstract read
In one paragraph

Article in Experimental cell research, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 29% 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

30 citing papers in PubMed, 1 synthesis or guideline pooled it, 53 citations in OpenAlex.

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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

9 authors at 5 institutions in 1 country.

Mary Ann SteppDepartment of Anatomy and Regenerative Biology, George Washington University Medical Center, Washington DC 20037, USA. mastepp@gwu.edu
William P Daley
Audrey M Bernstein
Sonali Pal-Ghosh
Gauri Tadvalkar
Alexey Shashurin
Sarah Palsen
Rosalyn A Jurjus
Melinda Larsen
George Washington University · USWashington University Medical Center · USAlbany State University · USIcahn School of Medicine at Mount Sinai · USUniversity at Albany, State University of New York · US

Funding

Molecular mechanisms of corneal recurrent erosion formationR01EY008512 · NEI · SCHEPENS EYE RESEARCH INSTITUTE · PI STEPP, MARY ANN · 1990 to 2024
$11.7M
Corneal Repair: uPA and extracellular matrixR01EY017030 · NEI · ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI · PI BERNSTEIN, AUDREY M · 2006 to 2010
$2.0M
A high-resolution in situ proteomics atlas of salivary gland developmentRC1DE020402 · NIDCR · STATE UNIVERSITY OF NEW YORK AT ALBANY · PI LARSEN, MELINDA · 2009 to 2010
$602k
Engineering Functioning Salivary Glands Using Micropatterned ScaffoldsR21DE019197 · NIDCR · STATE UNIVERSITY OF NEW YORK AT ALBANY · PI LARSEN, MELINDA · 2008 to 2010
$478k
NEI NIH HHS NIH RO1 EY08512NEI NIH HHS R01 EY008512NEI NIH HHS R01 EY017030NIDCR NIH HHS DE019197NIDCR NIH HHS DE019244401NIDCR NIH HHS R21 DE019197NIDCR NIH HHS RC1 DE020402NIDCR NIH HHS RC1DE020402
6 · The paper itself

Abstract

Corneal scarring is a major cause of blindness worldwide and can result from the deposition of abnormal amounts of collagen fibers lacking the correct size and spacing required to produce a clear cornea. Collagen fiber formation requires a preformed fibronectin (FN) matrix. We demonstrate that the loss of syndecan1 (sdc1) in corneal stromal cells (CSC) impacts cell migration rates, the sizes and composition of focal and fibrillar adhesions, the activation of integrins, and the assembly of fibronectin into fibrils. Integrin and fibronectin expression are not altered on sdc1-null CSCs. Cell adhesion, spreading, and migration studies using low compared to high concentrations of FN and collagen I (CNI) or vitronectin (VN) with and without activation of integrins by manganese chloride show that the impact of sdc1 depletion on integrin activation varies depending on the integrin-mediated activity evaluated. Differences in FN fibrillogenesis and migration in sdc1-null CSCs are reversed by addition of manganese chloride but cell spreading differences remain. To determine if our findings on sdc1 were specific to the cornea, we compared the phenotypes of sdc1-null dermal fibroblasts with those of CSCs. We found that without sdc1, both cell types migrate faster; however, cell-type-specific differences in FN expression and its assembly into fibrils exist between these two cell types. Together, our data demonstrate that sdc1 functions to regulate integrin activity in multiple cell types. Loss of sdc1-mediated integrin function results in cell-type specific differences in matrix assembly. A better understanding of how different cell types regulate FN fibril formation via syndecans and integrins will lead to better treatments for scarring and fibrosis.

Indexed as

AnimalsCell AdhesionCell MovementCells, CulturedCorneaFibroblastsFibronectinsFlow CytometryIntegrin alpha ChainsIntegrin beta1Magnesium ChlorideMiceMice, Inbred BALB CMice, KnockoutPolymerase Chain ReactionSyndecan-1FibronectinsIntegrin alpha ChainsIntegrin beta1Magnesium ChlorideSyndecan-1

Identifiers

PMID20580707
PMCPMC3141227
OpenAlexW1975839078

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.