Evidence map›Paper›PMID 22899715›Full record

ArticleJournal of cell science2012

Nanopatterning reveals an ECM area threshold for focal adhesion assembly and force transmission that is regulated by integrin activation and cytoskeleton tension.

Sean R Coyer, Ankur Singh, David W Dumbauld, David A Calderwood, Susan W Craig, Emmanuel Delamarche, Andrés J García

Open access · bronzeAbstract read
In one paragraph

Article in Journal of cell science, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers.

0numbers the graph read from it
0cells of the map it votes in
59citing papers in PubMed
6.1field-weighted citation impact, top 3% 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

59 citing papers in PubMed, 124 citations in OpenAlex.

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  19. Exploring cardiac form and function: A length-scale computational biology approach.Wiley interdisciplinary reviews. Systems biology and medicine · 2020
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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

7 authors at 4 institutions in 1 country.

Sean R CoyerWoodruff School of Mechanical Engineering and Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA 30330, USA.
Ankur Singh
David W Dumbauld
David A Calderwood
Susan W Craig
Emmanuel Delamarche
Andrés J García
Georgia Institute of Technology · USIBM (United States) · USJohns Hopkins University · USYale University · US

Funding

CELL SURFACE CONTROL OF LYMPHOCYTE PHYSIOLOGYR01GM041605 · NIGMS · JOHNS HOPKINS UNIVERSITY · PI CRAIG, SUSAN W · 1988 to 2011
$3.9M
Focal Adhesions in Cell Adhesion StrengtheningR01GM065918 · NIGMS · GEORGIA INSTITUTE OF TECHNOLOGY · PI GARCIA, ANDRES J · 2002 to 2011
$2.6M
NIGMS NIH HHS R01 GM041605NIGMS NIH HHS R01 GM065918NIGMS NIH HHS R01-GM065918NIGMS NIH HHS R01-GM41605
6 · The paper itself

Abstract

Integrin-based focal adhesions (FA) transmit anchorage and traction forces between the cell and the extracellular matrix (ECM). To gain further insight into the physical parameters of the ECM that control FA assembly and force transduction in non-migrating cells, we used fibronectin (FN) nanopatterning within a cell adhesion-resistant background to establish the threshold area of ECM ligand required for stable FA assembly and force transduction. Integrin-FN clustering and adhesive force were strongly modulated by the geometry of the nanoscale adhesive area. Individual nanoisland area, not the number of nanoislands or total adhesive area, controlled integrin-FN clustering and adhesion strength. Importantly, below an area threshold (0.11 µm(2)), very few integrin-FN clusters and negligible adhesive forces were generated. We then asked whether this adhesive area threshold could be modulated by intracellular pathways known to influence either adhesive force, cytoskeletal tension, or the structural link between the two. Expression of talin- or vinculin-head domains that increase integrin activation or clustering overcame this nanolimit for stable integrin-FN clustering and increased adhesive force. Inhibition of myosin contractility in cells expressing a vinculin mutant that enhances cytoskeleton-integrin coupling also restored integrin-FN clustering below the nanolimit. We conclude that the minimum area of integrin-FN clusters required for stable assembly of nanoscale FA and adhesive force transduction is not a constant; rather it has a dynamic threshold that results from an equilibrium between pathways controlling adhesive force, cytoskeletal tension, and the structural linkage that transmits these forces, allowing the balance to be tipped by factors that regulate these mechanical parameters.

Indexed as

Actin CytoskeletonAmidesAnimalsBiomechanical PhenomenaCell AdhesionExtracellular MatrixFibronectinsFocal AdhesionsIntegrinsMiceNIH 3T3 CellsProtein Interaction Domains and MotifsProtein MultimerizationProtein Structure, QuaternaryPyridinesrho-Associated KinasesAmidesFibronectinsIntegrinsPyridinesrho-Associated KinasesTalinVinculinY 27632

Identifiers

PMID22899715
PMCPMC3533393
OpenAlexW2131980222

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.