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Cardiovascular Research Advance Access originally published online on November 3, 2008
Cardiovascular Research 2009 81(2):253-259; doi:10.1093/cvr/cvn299
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Published on behalf of the European Society of Cardiology. All rights reserved. © The Author 2008. For permissions please email: journals.permissions@oxfordjournals.org

An in vitro beating heart model for long-term assessment of experimental therapeutics

Walter Habeler, Séverine Pouillot, Alexandra Plancheron, Michel Pucéat, Marc Peschanski and Christelle Monville*

INSERM/UEVE UMR 861, I-STEM, AFM, 5 rue Henri Desbruères, Evry 91030 Cedex, France

* Corresponding author. Tel: +33 169908528; fax: +33 169908521.E-mail address: cmonville{at}istem.genethon.fr

Aims: Within the framework of studies aiming at regenerative medicine for cardiovascular disease, we have developed an in vitro model to analyse human embryonic stem (ES) cell engraftment into the myocardium.

Methods and results: This model is based on organotypic rat ventricular slices maintained in culture at the air–medium interface on semi-porous membranes. Survival and differentiation of human cardiomyocytes derived from ES cells were then assessed for several months. In addition, we observed that ventricular tissue slices not only exhibited normal histology, but also rhythmic contractions till the end of the experiments (up to 3 months). Similar results were obtained using ventricular slices obtained from two human foetuses at 8 and 9.5 weeks of age. Calcium transients were associated with the beating frequency, and the pattern was modulated in a dose-dependent manner by epinephrine.

Conclusion: Our data suggest that the organotypic heart slice culture on semi-porous membranes is a relevant in vitro heart model for long-term histological and physiological studies.

KEYWORDS Heart slice cultures; Cell therapy; Human embryonic stem cells

Time for primary review: 28 days


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