Animal models and animal-free innovations for cardiovascular research: current status and routes to be explored. Consensus document of the ESC Working Group on Myocardial Function and the ESC Working Group on Cellular Biology of the Heart

Cardiovascular Research

6 January 2022
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Abstract

Abstract

Cardiovascular diseases represent a major cause of morbidity and mortality, necessitating research to improve diagnostics, and to discover and test novel preventive and curative therapies, all of which warrant experimental models that recapitulate human disease. The translation of basic science results to clinical practice is a challenging task, in particular for complex conditions such as cardiovascular diseases, which often result from multiple risk factors and comorbidities. This difficulty might lead some individuals to question the value of animal research, citing the translational ‘valley of death’, which largely reflects the fact that studies in rodents are difficult to translate to humans. This is also influenced by the fact that new, human-derived in vitro models can recapitulate aspects of disease processes. However, it would be a mistake to think that animal models do not represent a vital step in the translational pathway as they do provide important pathophysiological insights into disease mechanisms particularly on an organ and systemic level. While stem cell-derived human models have the potential to become key in testing toxicity and effectiveness of new drugs, we need to be realistic, and carefully validate all new human-like disease models. In this position paper, we highlight recent advances in trying to reduce the number of animals for cardiovascular research ranging from stem cell-derived models to in situ modelling of heart properties, bioinformatic models based on large datasets, and state-of-the-art animal models, which show clinically relevant characteristics observed in patients with a cardiovascular disease. We aim to provide a guide to help researchers in their experimental design to translate bench findings to clinical routine taking the replacement, reduction, and refinement (3R) as a guiding concept.

Contributors

Ilze Bot
Ilze Bot

Author

Leiden Academic Center for Drug Research Leiden , Netherlands (The)

Bianca J J M Brundel
Bianca J J M Brundel

Author

Amsterdam University Medical Centre (AUMC) Amsterdam , Netherlands (The)

Michele Ciccarelli
Michele Ciccarelli

Author

University of Salerno School of Medicine Salerno , Italy

Sean M Davidson
Sean M Davidson

Author

University College London London , United Kingdom of Great Britain & Northern Ireland

Jolanda van der Velden
Jolanda van der Velden

Author

Amsterdam University Medical Centre (AUMC) Amsterdam , Netherlands (The)

Dirk J Duncker
Dirk J Duncker

Author

Erasmus University Medical Centre Rotterdam , Netherlands (The)

Folkert W Asselbergs
Folkert W Asselbergs

Author

Amsterdam University Medical Centre (AUMC) Amsterdam , Netherlands (The)

Larissa Fabritz
Larissa Fabritz

Author

University Heart and Vascular Centre Hamburg (UHZ) Hamburg , Germany

Mauro Giacca
Mauro Giacca

Author

King's College London London , United Kingdom of Great Britain & Northern Ireland

Luc Bertrand
Luc Bertrand

Author

Institute of Experimental and Clinical Research (IREC) Brussels , Belgium

Diederik W D Kuster
Diederik W D Kuster

Author

Amsterdam University Medical Centre (AUMC) Amsterdam , Netherlands (The)

Sandrine Lecour
Sandrine Lecour

Author

University of Cape Town Cape Town , South Africa

Tim Leiner
Tim Leiner

Author

Mayo Clinic Hospital-Rochester Rochester , United States of America

Wolfgang A Linke
Wolfgang A Linke

Author

University Hospital Munster - UKM Muenster , Germany

Joost Lumens
Joost Lumens

Author

Cardiovascular Research Institute Maastricht (CARIM) Maastricht , Netherlands (The)

Esther Lutgens
Esther Lutgens

Author

Mayo Clinic Rochester , United States of America

Manuel Mayr
Manuel Mayr

Author

National Heart and Lung Institute Imperial College London , United Kingdom of Great Britain & Northern Ireland

Filippo Perbellini
Filippo Perbellini

Author

King's College London London , United Kingdom of Great Britain & Northern Ireland

Maurizio Pesce
Maurizio Pesce

Author

King Faisal Specialist Hospital and Research Centre (Gen. Org.) Riyadh , Saudi Arabia

Joost P G Sluijter
Joost P G Sluijter

Author

University Medical Center Utrecht Utrecht , Netherlands (The)

Sabine Steffens
Sabine Steffens

Author

Institute for Cardiovascular Prevention (IPEK-LMU) Munich , Germany

Carlo Gabriele Tocchetti
Carlo Gabriele Tocchetti

Author

University of Naples Federico II Naples , Italy

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