Evidence map›Paper›PMID 22170772›Full record

ArticleJournal of tissue engineering and regenerative medicine2012

Biomimetic perfusion and electrical stimulation applied in concert improved the assembly of engineered cardiac tissue.

Robert Maidhof, Nina Tandon, Eun Jung Lee, Jianwen Luo, Yi Duan, Keith Yeager, Elisa Konofagou, Gordana Vunjak-Novakovic

Abstract read
In one paragraph

Article in Journal of tissue engineering and regenerative medicine, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 61 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
61citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

61 citing papers in PubMed, 1 synthesis or guideline pooled it.

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  15. Scaffolding Biomaterials for 3D Cultivated Meat: Prospects and Challenges.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2022
    Review
  16. Article
  17. Engineering and Assessing Cardiac Tissue Complexity.International journal of molecular sciences · 2021
    Review
  18. Review
  19. Article
  20. Tissue-in-a-Tube: three-dimensionalMaterials today. Bio · 2020
    Article

1 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

8 authors.

Robert MaidhofDepartment of Biomedical Engineering, Columbia University, New York, NY 10032, USA.
Nina Tandon
Eun Jung Lee
Jianwen Luo
Yi Duan
Keith Yeager
Elisa Konofagou
Gordana Vunjak-Novakovic

Funding

Translational Bioreactors - Engineering Complex TissuesP41EB002520 · NIBIB · TUFTS UNIVERSITY MEDFORD · PI KAPLAN, DAVID L. · 2004 to 2018
$16.7M
Engineering Vascularized Cardiac MuscleR01HL076485 · NHLBI · COLUMBIA UNIV NEW YORK MORNINGSIDE · PI Gordana Vunjak-Novakovic · 2005 to 2026
$9.2M
Multidisciplinary Training in Translational Cardiovascular ResearchT32HL087745 · NHLBI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI MARKS, ANDREW ROBERT · 2007 to 2011
$1.8M
Plug and Play BioreactorR21RR026244 · NCRR · COLUMBIA UNIV NEW YORK MORNINGSIDE · PI VUNJAK-NOVAKOVIC, GORDANA · 2010 to 2011
$388k
Plug and Play BioreactorR21EB015888 · NIBIB · COLUMBIA UNIV NEW YORK MORNINGSIDE · PI VUNJAK-NOVAKOVIC, GORDANA · 2012 to 2012
$193k
NCRR NIH HHS R21 RR026244NCRR NIH HHS RR026244NHLBI NIH HHS HL076485NHLBI NIH HHS HL088913NHLBI NIH HHS R01 HL076485NHLBI NIH HHS T 32 HL087745NIBIB NIH HHS EB002520NIBIB NIH HHS P41 EB002520NIBIB NIH HHS R21 EB015888
6 · The paper itself

Abstract

Maintenance of normal myocardial function depends intimately on synchronous tissue contraction, driven by electrical activation and on adequate nutrient perfusion in support thereof. Bioreactors have been used to mimic aspects of these factors in vitro to engineer cardiac tissue but, due to design limitations, previous bioreactor systems have yet to simultaneously support nutrient perfusion, electrical stimulation and unconstrained (i.e. not isometric) tissue contraction. To the best of our knowledge, the bioreactor system described herein is the first to integrate these three key factors in concert. We present the design of our bioreactor and characterize its capability in integrated experimental and mathematical modelling studies. We then cultured cardiac cells obtained from neonatal rats in porous, channelled elastomer scaffolds with the simultaneous application of perfusion and electrical stimulation, with controls excluding either one or both of these two conditions. After 8 days of culture, constructs grown with simultaneous perfusion and electrical stimulation exhibited substantially improved functional properties, as evidenced by a significant increase in contraction amplitude (0.23 ± 0.10% vs 0.14 ± 0.05%, 0.13 ± 0.08% or 0.09 ± 0.02% in control constructs grown without stimulation, without perfusion, or either stimulation or perfusion, respectively). Consistently, these constructs had significantly improved DNA contents, cell distribution throughout the scaffold thickness, cardiac protein expression, cell morphology and overall tissue organization compared to control groups. Thus, the simultaneous application of medium perfusion and electrical conditioning enabled by the use of the novel bioreactor system may accelerate the generation of fully functional, clinically sized cardiac tissue constructs.

Indexed as

Biomimetic MaterialsBioreactorsMyocardial ContractionTissue EngineeringTissue ScaffoldsAnimalsElectric StimulationMuscle ProteinsMyocardiumMyocytes, CardiacPorosityRatsRats, Sprague-DawleyMuscle Proteins

Identifiers

PMID22170772
PMCPMC3482289

What OpenQuestion holds

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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.