Evidence map›Paper›PMID 18957515›Full record

ArticleJournal of cell science2008

Embryonic cardiomyocytes beat best on a matrix with heart-like elasticity: scar-like rigidity inhibits beating.

Adam J Engler, Christine Carag-Krieger, Colin P Johnson, Matthew Raab, Hsin-Yao Tang, David W Speicher, Joseph W Sanger, Jean M Sanger, Dennis E Discher

Open access · greenAbstract read
In one paragraph

Article in Journal of cell science, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 421 papers.

0numbers the graph read from it
0cells of the map it votes in
421citing papers in PubMed
18.0field-weighted citation impact, top 1% 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

421 citing papers in PubMed, 857 citations in OpenAlex.

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361 more citing papers are in PubMed but not listed here.

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 3 institutions in 1 country.

Adam J EnglerMolecular and Cell Biophysics Lab, University of Pennsylvania, Philadelphia, PA 19104, USA.
Christine Carag-Krieger
Colin P Johnson
Matthew Raab
Hsin-Yao Tang
David W Speicher
Joseph W Sanger
Jean M Sanger
Dennis E Discher
University of Pennsylvania · USThe Wistar Institute · USSUNY Upstate Medical University · US

Funding

SPECTRIN EXTENSIBILITY and CD47 CONNECTIONS &FUNCTIONR01HL062352 · NHLBI · UNIVERSITY OF PENNSYLVANIA · PI DISCHER, DENNIS E. · 1999 to 2012
$3.3M
Carrier Shape Matters: Filomicelles, Long-circulation, and the EPR effectR01EB007049 · NIBIB · UNIVERSITY OF PENNSYLVANIA · PI DISCHER, DENNIS E. · 2006 to 2014
$2.8M
AFM(T) + FLUORESCENCE MEASUREMENTS ON SINGLE MOLECULESS10RR022575 · NCRR · UNIVERSITY OF PENNSYLVANIA · PI DISCHER, DENNIS E. · 2007 to 2007
$382k
Matrix-induced Myogenesis & Pharmaco-Screens of MSCsR21AR056128 · NIAMS · UNIVERSITY OF PENNSYLVANIA · PI DISCHER, DENNIS E. · 2008 to 2009
$364k
NCRR NIH HHS S10 RR022575NHLBI NIH HHS R01 HL062352NIAMS NIH HHS R21 AR056128NIBIB NIH HHS R01 EB007049
6 · The paper itself

Abstract

Fibrotic rigidification following a myocardial infarct is known to impair cardiac output, and it is also known that cardiomyocytes on rigid culture substrates show a progressive loss of rhythmic beating. Here, isolated embryonic cardiomyocytes cultured on a series of flexible substrates show that matrices that mimic the elasticity of the developing myocardial microenvironment are optimal for transmitting contractile work to the matrix and for promoting actomyosin striation and 1-Hz beating. On hard matrices that mechanically mimic a post-infarct fibrotic scar, cells overstrain themselves, lack striated myofibrils and stop beating; on very soft matrices, cells preserve contractile beating for days in culture but do very little work. Optimal matrix leads to a strain match between cell and matrix, and suggests dynamic differences in intracellular protein structures. A 'cysteine shotgun' method of labeling the in situ proteome reveals differences in assembly or conformation of several abundant cytoskeletal proteins, including vimentin, filamin and myosin. Combined with recent results, which show that stem cell differentiation is also highly sensitive to matrix elasticity, the methods and analyses might be useful in the culture and assessment of cardiogenesis of both embryonic stem cells and induced pluripotent stem cells. The results described here also highlight the need for greater attention to fibrosis and mechanical microenvironments in cell therapy and development.

Indexed as

Myocardial ContractionAnimalsCells, CulturedCell SeparationChick EmbryoElasticityHeartMyocardiumMyocytes, CardiacQuail

Identifiers

PMID18957515
PMCPMC2740334
OpenAlexW2157023104

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.